From a6ec79157d51c2e9898ae4892cc3d438beff8290 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 5 Nov 2012 18:22:17 +0100 Subject: [PATCH] Revert vexpress/soc The vexpress/soc branch is causing build errors due to missing dependencies, so let's revert it for now. Signed-off-by: Arnd Bergmann --- .../bindings/arm/vexpress-sysreg.txt | 50 -- .../devicetree/bindings/arm/vexpress.txt | 98 +--- arch/arm/boot/dts/vexpress-v2m-rs1.dtsi | 146 +---- arch/arm/boot/dts/vexpress-v2m.dtsi | 146 +---- arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts | 121 +--- arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts | 186 +----- arch/arm/boot/dts/vexpress-v2p-ca5s.dts | 84 +-- arch/arm/boot/dts/vexpress-v2p-ca9.dts | 136 +---- arch/arm/include/asm/hardware/sp810.h | 6 + arch/arm/mach-vexpress/Kconfig | 4 +- arch/arm/mach-vexpress/Makefile | 2 +- arch/arm/mach-vexpress/ct-ca9x4.c | 41 +- .../mach-vexpress/include/mach/motherboard.h | 81 +++ arch/arm/mach-vexpress/platsmp.c | 3 +- arch/arm/mach-vexpress/v2m.c | 349 ++++++++--- drivers/mfd/Kconfig | 6 - drivers/mfd/Makefile | 1 - drivers/mfd/vexpress-config.c | 277 --------- drivers/mfd/vexpress-sysreg.c | 552 ------------------ include/linux/vexpress.h | 121 ---- 20 files changed, 417 insertions(+), 1993 deletions(-) delete mode 100644 Documentation/devicetree/bindings/arm/vexpress-sysreg.txt delete mode 100644 drivers/mfd/vexpress-config.c delete mode 100644 drivers/mfd/vexpress-sysreg.c delete mode 100644 include/linux/vexpress.h diff --git a/Documentation/devicetree/bindings/arm/vexpress-sysreg.txt b/Documentation/devicetree/bindings/arm/vexpress-sysreg.txt deleted file mode 100644 index 9cf3f25544c7..000000000000 --- a/Documentation/devicetree/bindings/arm/vexpress-sysreg.txt +++ /dev/null @@ -1,50 +0,0 @@ -ARM Versatile Express system registers --------------------------------------- - -This is a system control registers block, providing multiple low level -platform functions like board detection and identification, software -interrupt generation, MMC and NOR Flash control etc. - -Required node properties: -- compatible value : = "arm,vexpress,sysreg"; -- reg : physical base address and the size of the registers window -- gpio-controller : specifies that the node is a GPIO controller -- #gpio-cells : size of the GPIO specifier, should be 2: - - first cell is the pseudo-GPIO line number: - 0 - MMC CARDIN - 1 - MMC WPROT - 2 - NOR FLASH WPn - - second cell can take standard GPIO flags (currently ignored). - -Example: - v2m_sysreg: sysreg@10000000 { - compatible = "arm,vexpress-sysreg"; - reg = <0x10000000 0x1000>; - gpio-controller; - #gpio-cells = <2>; - }; - -This block also can also act a bridge to the platform's configuration -bus via "system control" interface, addressing devices with site number, -position in the board stack, config controller, function and device -numbers - see motherboard's TRM for more details. - -The node describing a config device must refer to the sysreg node via -"arm,vexpress,config-bridge" phandle (can be also defined in the node's -parent) and relies on the board topology properties - see main vexpress -node documentation for more details. It must must also define the -following property: -- arm,vexpress-sysreg,func : must contain two cells: - - first cell defines function number (eg. 1 for clock generator, - 2 for voltage regulators etc.) - - device number (eg. osc 0, osc 1 etc.) - -Example: - mcc { - arm,vexpress,config-bridge = <&v2m_sysreg>; - - osc@0 { - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 0>; - }; - }; diff --git a/Documentation/devicetree/bindings/arm/vexpress.txt b/Documentation/devicetree/bindings/arm/vexpress.txt index ae49161e478a..ec8b50cbb2e8 100644 --- a/Documentation/devicetree/bindings/arm/vexpress.txt +++ b/Documentation/devicetree/bindings/arm/vexpress.txt @@ -11,10 +11,6 @@ the motherboard file using a /include/ directive. As the motherboard can be initialized in one of two different configurations ("memory maps"), care must be taken to include the correct one. - -Root node ---------- - Required properties in the root node: - compatible value: compatible = "arm,vexpress,", "arm,vexpress"; @@ -49,10 +45,6 @@ Optional properties in the root node: - Coretile Express A9x4 (V2P-CA9) HBI-0225: arm,hbi = <0x225>; - -CPU nodes ---------- - Top-level standard "cpus" node is required. It must contain a node with device_type = "cpu" property for every available core, eg.: @@ -67,52 +59,6 @@ with device_type = "cpu" property for every available core, eg.: }; }; - -Configuration infrastructure ----------------------------- - -The platform has an elaborated configuration system, consisting of -microcontrollers residing on the mother- and daughterboards known -as Motherboard/Daughterboard Configuration Controller (MCC and DCC). -The controllers are responsible for the platform initialization -(reset generation, flash programming, FPGA bitfiles loading etc.) -but also control clock generators, voltage regulators, gather -environmental data like temperature, power consumption etc. Even -the video output switch (FPGA) is controlled that way. - -Nodes describing devices controlled by this infrastructure should -point at the bridge device node: -- bridge phandle: - arm,vexpress,config-bridge = ; -This property can be also defined in a parent node (eg. for a DCC) -and is effective for all children. - - -Platform topology ------------------ - -As Versatile Express can be configured in number of physically -different setups, the device tree should describe platform topology. -Root node and main motherboard node must define the following -property, describing physical location of the children nodes: -- site number: - arm,vexpress,site = ; - where 0 means motherboard, 1 or 2 are daugtherboard sites, - 0xf means "master" site (site containing main CPU tile) -- when daughterboards are stacked on one site, their position - in the stack be be described with: - arm,vexpress,position = ; -- when describing tiles consisting more than one DCC, its number - can be described with: - arm,vexpress,dcc = ; - -Any of the numbers above defaults to zero if not defined in -the node or any of its parent. - - -Motherboard ------------ - The motherboard description file provides a single "motherboard" node using 2 address cells corresponding to the Static Memory Bus used between the motherboard and the tile. The first cell defines the Chip @@ -141,30 +87,22 @@ can be used to obtain required phandle in the tile's "aliases" node: - SP804 timers: v2m_timer01 and v2m_timer23 -The tile description should define a "smb" node, describing the -Static Memory Bus between the tile and motherboard. It must define -the following properties: -- "simple-bus" compatible value (to ensure creation of the children) - compatible = "simple-bus"; -- mapping of the SMB CS/offset addresses into main address space: - #address-cells = <2>; - #size-cells = <1>; - ranges = <...>; -- interrupts mapping: - #interrupt-cells = <1>; - interrupt-map-mask = <0 0 63>; - interrupt-map = <...>; +Current Linux implementation requires a "arm,v2m_timer" alias +pointing at one of the motherboard's SP804 timers, if it is to be +used as the system timer. This alias should be defined in the +motherboard files. +The tile description must define "ranges", "interrupt-map-mask" and +"interrupt-map" properties to translate the motherboard's address +and interrupt space into one used by the tile's processor. -Example of a VE tile description (simplified) ---------------------------------------------- +Abbreviated example: /dts-v1/; / { model = "V2P-CA5s"; arm,hbi = <0x225>; - arm,vexpress,site = <0xf>; compatible = "arm,vexpress-v2p-ca5s", "arm,vexpress"; interrupt-parent = <&gic>; #address-cells = <1>; @@ -196,29 +134,13 @@ Example of a VE tile description (simplified) <0x2c000100 0x100>; }; - dcc { - compatible = "simple-bus"; - arm,vexpress,config-bridge = <&v2m_sysreg>; - - osc@0 { - compatible = "arm,vexpress-osc"; - }; - }; - - smb { - compatible = "simple-bus"; - - #address-cells = <2>; - #size-cells = <1>; + motherboard { /* CS0 is visible at 0x08000000 */ ranges = <0 0 0x08000000 0x04000000>; - - #interrupt-cells = <1>; interrupt-map-mask = <0 0 63>; /* Active high IRQ 0 is connected to GIC's SPI0 */ interrupt-map = <0 0 0 &gic 0 0 4>; - - /include/ "vexpress-v2m-rs1.dtsi" }; }; +/include/ "vexpress-v2m-rs1.dtsi" diff --git a/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi b/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi index ac870fb3fa0d..d8a827bd2bf3 100644 --- a/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi +++ b/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi @@ -17,16 +17,17 @@ * CHANGES TO vexpress-v2m.dtsi! */ +/ { + aliases { + arm,v2m_timer = &v2m_timer01; + }; + motherboard { - model = "V2M-P1"; - arm,hbi = <0x190>; - arm,vexpress,site = <0>; + compatible = "simple-bus"; arm,v2m-memory-map = "rs1"; - compatible = "arm,vexpress,v2m-p1", "simple-bus"; #address-cells = <2>; /* SMB chipselect number and offset */ #size-cells = <1>; #interrupt-cells = <1>; - ranges; flash@0,00000000 { compatible = "arm,vexpress-flash", "cfi-flash"; @@ -71,20 +72,14 @@ #size-cells = <1>; ranges = <0 3 0 0x200000>; - v2m_sysreg: sysreg@010000 { + sysreg@010000 { compatible = "arm,vexpress-sysreg"; reg = <0x010000 0x1000>; - gpio-controller; - #gpio-cells = <2>; }; - v2m_sysctl: sysctl@020000 { + sysctl@020000 { compatible = "arm,sp810", "arm,primecell"; reg = <0x020000 0x1000>; - clocks = <&v2m_refclk32khz>, <&v2m_refclk1mhz>, <&smbclk>; - clock-names = "refclk", "timclk", "apb_pclk"; - #clock-cells = <1>; - clock-output-names = "timerclken0", "timerclken1", "timerclken2", "timerclken3"; }; /* PCI-E I2C bus */ @@ -105,92 +100,66 @@ compatible = "arm,pl041", "arm,primecell"; reg = <0x040000 0x1000>; interrupts = <11>; - clocks = <&smbclk>; - clock-names = "apb_pclk"; }; mmci@050000 { compatible = "arm,pl180", "arm,primecell"; reg = <0x050000 0x1000>; interrupts = <9 10>; - cd-gpios = <&v2m_sysreg 0 0>; - wp-gpios = <&v2m_sysreg 1 0>; - max-frequency = <12000000>; - vmmc-supply = <&v2m_fixed_3v3>; - clocks = <&v2m_clk24mhz>, <&smbclk>; - clock-names = "mclk", "apb_pclk"; }; kmi@060000 { compatible = "arm,pl050", "arm,primecell"; reg = <0x060000 0x1000>; interrupts = <12>; - clocks = <&v2m_clk24mhz>, <&smbclk>; - clock-names = "KMIREFCLK", "apb_pclk"; }; kmi@070000 { compatible = "arm,pl050", "arm,primecell"; reg = <0x070000 0x1000>; interrupts = <13>; - clocks = <&v2m_clk24mhz>, <&smbclk>; - clock-names = "KMIREFCLK", "apb_pclk"; }; v2m_serial0: uart@090000 { compatible = "arm,pl011", "arm,primecell"; reg = <0x090000 0x1000>; interrupts = <5>; - clocks = <&v2m_oscclk2>, <&smbclk>; - clock-names = "uartclk", "apb_pclk"; }; v2m_serial1: uart@0a0000 { compatible = "arm,pl011", "arm,primecell"; reg = <0x0a0000 0x1000>; interrupts = <6>; - clocks = <&v2m_oscclk2>, <&smbclk>; - clock-names = "uartclk", "apb_pclk"; }; v2m_serial2: uart@0b0000 { compatible = "arm,pl011", "arm,primecell"; reg = <0x0b0000 0x1000>; interrupts = <7>; - clocks = <&v2m_oscclk2>, <&smbclk>; - clock-names = "uartclk", "apb_pclk"; }; v2m_serial3: uart@0c0000 { compatible = "arm,pl011", "arm,primecell"; reg = <0x0c0000 0x1000>; interrupts = <8>; - clocks = <&v2m_oscclk2>, <&smbclk>; - clock-names = "uartclk", "apb_pclk"; }; wdt@0f0000 { compatible = "arm,sp805", "arm,primecell"; reg = <0x0f0000 0x1000>; interrupts = <0>; - clocks = <&v2m_refclk32khz>, <&smbclk>; - clock-names = "wdogclk", "apb_pclk"; }; v2m_timer01: timer@110000 { compatible = "arm,sp804", "arm,primecell"; reg = <0x110000 0x1000>; interrupts = <2>; - clocks = <&v2m_sysctl 0>, <&v2m_sysctl 1>, <&smbclk>; - clock-names = "timclken1", "timclken2", "apb_pclk"; }; v2m_timer23: timer@120000 { compatible = "arm,sp804", "arm,primecell"; reg = <0x120000 0x1000>; interrupts = <3>; - clocks = <&v2m_sysctl 2>, <&v2m_sysctl 3>, <&smbclk>; - clock-names = "timclken1", "timclken2", "apb_pclk"; }; /* DVI I2C bus */ @@ -216,8 +185,6 @@ compatible = "arm,pl031", "arm,primecell"; reg = <0x170000 0x1000>; interrupts = <4>; - clocks = <&smbclk>; - clock-names = "apb_pclk"; }; compact-flash@1a0000 { @@ -231,8 +198,6 @@ compatible = "arm,pl111", "arm,primecell"; reg = <0x1f0000 0x1000>; interrupts = <14>; - clocks = <&v2m_oscclk1>, <&smbclk>; - clock-names = "clcdclk", "apb_pclk"; }; }; @@ -243,98 +208,5 @@ regulator-max-microvolt = <3300000>; regulator-always-on; }; - - v2m_clk24mhz: clk24mhz { - compatible = "fixed-clock"; - #clock-cells = <0>; - clock-frequency = <24000000>; - clock-output-names = "v2m:clk24mhz"; - }; - - v2m_refclk1mhz: refclk1mhz { - compatible = "fixed-clock"; - #clock-cells = <0>; - clock-frequency = <1000000>; - clock-output-names = "v2m:refclk1mhz"; - }; - - v2m_refclk32khz: refclk32khz { - compatible = "fixed-clock"; - #clock-cells = <0>; - clock-frequency = <32768>; - clock-output-names = "v2m:refclk32khz"; - }; - - mcc { - compatible = "arm,vexpress,config-bus"; - arm,vexpress,config-bridge = <&v2m_sysreg>; - - osc@0 { - /* MCC static memory clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 0>; - freq-range = <25000000 60000000>; - #clock-cells = <0>; - clock-output-names = "v2m:oscclk0"; - }; - - v2m_oscclk1: osc@1 { - /* CLCD clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 1>; - freq-range = <23750000 63500000>; - #clock-cells = <0>; - clock-output-names = "v2m:oscclk1"; - }; - - v2m_oscclk2: osc@2 { - /* IO FPGA peripheral clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 2>; - freq-range = <24000000 24000000>; - #clock-cells = <0>; - clock-output-names = "v2m:oscclk2"; - }; - - volt@0 { - /* Logic level voltage */ - compatible = "arm,vexpress-volt"; - arm,vexpress-sysreg,func = <2 0>; - regulator-name = "VIO"; - regulator-always-on; - label = "VIO"; - }; - - temp@0 { - /* MCC internal operating temperature */ - compatible = "arm,vexpress-temp"; - arm,vexpress-sysreg,func = <4 0>; - label = "MCC"; - }; - - reset@0 { - compatible = "arm,vexpress-reset"; - arm,vexpress-sysreg,func = <5 0>; - }; - - muxfpga@0 { - compatible = "arm,vexpress-muxfpga"; - arm,vexpress-sysreg,func = <7 0>; - }; - - shutdown@0 { - compatible = "arm,vexpress-shutdown"; - arm,vexpress-sysreg,func = <8 0>; - }; - - reboot@0 { - compatible = "arm,vexpress-reboot"; - arm,vexpress-sysreg,func = <9 0>; - }; - - dvimode@0 { - compatible = "arm,vexpress-dvimode"; - arm,vexpress-sysreg,func = <11 0>; - }; - }; }; +}; diff --git a/arch/arm/boot/dts/vexpress-v2m.dtsi b/arch/arm/boot/dts/vexpress-v2m.dtsi index f1420368355b..dba53fd026bb 100644 --- a/arch/arm/boot/dts/vexpress-v2m.dtsi +++ b/arch/arm/boot/dts/vexpress-v2m.dtsi @@ -17,15 +17,16 @@ * CHANGES TO vexpress-v2m-rs1.dtsi! */ +/ { + aliases { + arm,v2m_timer = &v2m_timer01; + }; + motherboard { - model = "V2M-P1"; - arm,hbi = <0x190>; - arm,vexpress,site = <0>; - compatible = "arm,vexpress,v2m-p1", "simple-bus"; + compatible = "simple-bus"; #address-cells = <2>; /* SMB chipselect number and offset */ #size-cells = <1>; #interrupt-cells = <1>; - ranges; flash@0,00000000 { compatible = "arm,vexpress-flash", "cfi-flash"; @@ -70,20 +71,14 @@ #size-cells = <1>; ranges = <0 7 0 0x20000>; - v2m_sysreg: sysreg@00000 { + sysreg@00000 { compatible = "arm,vexpress-sysreg"; reg = <0x00000 0x1000>; - gpio-controller; - #gpio-cells = <2>; }; - v2m_sysctl: sysctl@01000 { + sysctl@01000 { compatible = "arm,sp810", "arm,primecell"; reg = <0x01000 0x1000>; - clocks = <&v2m_refclk32khz>, <&v2m_refclk1mhz>, <&smbclk>; - clock-names = "refclk", "timclk", "apb_pclk"; - #clock-cells = <1>; - clock-output-names = "timerclken0", "timerclken1", "timerclken2", "timerclken3"; }; /* PCI-E I2C bus */ @@ -104,92 +99,66 @@ compatible = "arm,pl041", "arm,primecell"; reg = <0x04000 0x1000>; interrupts = <11>; - clocks = <&smbclk>; - clock-names = "apb_pclk"; }; mmci@05000 { compatible = "arm,pl180", "arm,primecell"; reg = <0x05000 0x1000>; interrupts = <9 10>; - cd-gpios = <&v2m_sysreg 0 0>; - wp-gpios = <&v2m_sysreg 1 0>; - max-frequency = <12000000>; - vmmc-supply = <&v2m_fixed_3v3>; - clocks = <&v2m_clk24mhz>, <&smbclk>; - clock-names = "mclk", "apb_pclk"; }; kmi@06000 { compatible = "arm,pl050", "arm,primecell"; reg = <0x06000 0x1000>; interrupts = <12>; - clocks = <&v2m_clk24mhz>, <&smbclk>; - clock-names = "KMIREFCLK", "apb_pclk"; }; kmi@07000 { compatible = "arm,pl050", "arm,primecell"; reg = <0x07000 0x1000>; interrupts = <13>; - clocks = <&v2m_clk24mhz>, <&smbclk>; - clock-names = "KMIREFCLK", "apb_pclk"; }; v2m_serial0: uart@09000 { compatible = "arm,pl011", "arm,primecell"; reg = <0x09000 0x1000>; interrupts = <5>; - clocks = <&v2m_oscclk2>, <&smbclk>; - clock-names = "uartclk", "apb_pclk"; }; v2m_serial1: uart@0a000 { compatible = "arm,pl011", "arm,primecell"; reg = <0x0a000 0x1000>; interrupts = <6>; - clocks = <&v2m_oscclk2>, <&smbclk>; - clock-names = "uartclk", "apb_pclk"; }; v2m_serial2: uart@0b000 { compatible = "arm,pl011", "arm,primecell"; reg = <0x0b000 0x1000>; interrupts = <7>; - clocks = <&v2m_oscclk2>, <&smbclk>; - clock-names = "uartclk", "apb_pclk"; }; v2m_serial3: uart@0c000 { compatible = "arm,pl011", "arm,primecell"; reg = <0x0c000 0x1000>; interrupts = <8>; - clocks = <&v2m_oscclk2>, <&smbclk>; - clock-names = "uartclk", "apb_pclk"; }; wdt@0f000 { compatible = "arm,sp805", "arm,primecell"; reg = <0x0f000 0x1000>; interrupts = <0>; - clocks = <&v2m_refclk32khz>, <&smbclk>; - clock-names = "wdogclk", "apb_pclk"; }; v2m_timer01: timer@11000 { compatible = "arm,sp804", "arm,primecell"; reg = <0x11000 0x1000>; interrupts = <2>; - clocks = <&v2m_sysctl 0>, <&v2m_sysctl 1>, <&smbclk>; - clock-names = "timclken1", "timclken2", "apb_pclk"; }; v2m_timer23: timer@12000 { compatible = "arm,sp804", "arm,primecell"; reg = <0x12000 0x1000>; interrupts = <3>; - clocks = <&v2m_sysctl 2>, <&v2m_sysctl 3>, <&smbclk>; - clock-names = "timclken1", "timclken2", "apb_pclk"; }; /* DVI I2C bus */ @@ -215,8 +184,6 @@ compatible = "arm,pl031", "arm,primecell"; reg = <0x17000 0x1000>; interrupts = <4>; - clocks = <&smbclk>; - clock-names = "apb_pclk"; }; compact-flash@1a000 { @@ -230,8 +197,6 @@ compatible = "arm,pl111", "arm,primecell"; reg = <0x1f000 0x1000>; interrupts = <14>; - clocks = <&v2m_oscclk1>, <&smbclk>; - clock-names = "clcdclk", "apb_pclk"; }; }; @@ -242,98 +207,5 @@ regulator-max-microvolt = <3300000>; regulator-always-on; }; - - v2m_clk24mhz: clk24mhz { - compatible = "fixed-clock"; - #clock-cells = <0>; - clock-frequency = <24000000>; - clock-output-names = "v2m:clk24mhz"; - }; - - v2m_refclk1mhz: refclk1mhz { - compatible = "fixed-clock"; - #clock-cells = <0>; - clock-frequency = <1000000>; - clock-output-names = "v2m:refclk1mhz"; - }; - - v2m_refclk32khz: refclk32khz { - compatible = "fixed-clock"; - #clock-cells = <0>; - clock-frequency = <32768>; - clock-output-names = "v2m:refclk32khz"; - }; - - mcc { - compatible = "arm,vexpress,config-bus"; - arm,vexpress,config-bridge = <&v2m_sysreg>; - - osc@0 { - /* MCC static memory clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 0>; - freq-range = <25000000 60000000>; - #clock-cells = <0>; - clock-output-names = "v2m:oscclk0"; - }; - - v2m_oscclk1: osc@1 { - /* CLCD clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 1>; - freq-range = <23750000 63500000>; - #clock-cells = <0>; - clock-output-names = "v2m:oscclk1"; - }; - - v2m_oscclk2: osc@2 { - /* IO FPGA peripheral clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 2>; - freq-range = <24000000 24000000>; - #clock-cells = <0>; - clock-output-names = "v2m:oscclk2"; - }; - - volt@0 { - /* Logic level voltage */ - compatible = "arm,vexpress-volt"; - arm,vexpress-sysreg,func = <2 0>; - regulator-name = "VIO"; - regulator-always-on; - label = "VIO"; - }; - - temp@0 { - /* MCC internal operating temperature */ - compatible = "arm,vexpress-temp"; - arm,vexpress-sysreg,func = <4 0>; - label = "MCC"; - }; - - reset@0 { - compatible = "arm,vexpress-reset"; - arm,vexpress-sysreg,func = <5 0>; - }; - - muxfpga@0 { - compatible = "arm,vexpress-muxfpga"; - arm,vexpress-sysreg,func = <7 0>; - }; - - shutdown@0 { - compatible = "arm,vexpress-shutdown"; - arm,vexpress-sysreg,func = <8 0>; - }; - - reboot@0 { - compatible = "arm,vexpress-reboot"; - arm,vexpress-sysreg,func = <9 0>; - }; - - dvimode@0 { - compatible = "arm,vexpress-dvimode"; - arm,vexpress-sysreg,func = <11 0>; - }; - }; }; +}; diff --git a/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts b/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts index a3d37ec2655d..d12b34ca0568 100644 --- a/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts +++ b/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts @@ -12,7 +12,6 @@ / { model = "V2P-CA15"; arm,hbi = <0x237>; - arm,vexpress,site = <0xf>; compatible = "arm,vexpress,v2p-ca15,tc1", "arm,vexpress,v2p-ca15", "arm,vexpress"; interrupt-parent = <&gic>; #address-cells = <2>; @@ -55,24 +54,17 @@ compatible = "arm,hdlcd"; reg = <0 0x2b000000 0 0x1000>; interrupts = <0 85 4>; - clocks = <&oscclk5>; - clock-names = "pxlclk"; }; memory-controller@2b0a0000 { compatible = "arm,pl341", "arm,primecell"; reg = <0 0x2b0a0000 0 0x1000>; - clocks = <&oscclk7>; - clock-names = "apb_pclk"; }; wdt@2b060000 { compatible = "arm,sp805", "arm,primecell"; - status = "disabled"; reg = <0 0x2b060000 0 0x1000>; interrupts = <98>; - clocks = <&oscclk7>; - clock-names = "apb_pclk"; }; gic: interrupt-controller@2c001000 { @@ -92,8 +84,6 @@ reg = <0 0x7ffd0000 0 0x1000>; interrupts = <0 86 4>, <0 87 4>; - clocks = <&oscclk7>; - clock-names = "apb_pclk"; }; dma@7ffb0000 { @@ -104,8 +94,6 @@ <0 89 4>, <0 90 4>, <0 91 4>; - clocks = <&oscclk7>; - clock-names = "apb_pclk"; }; timer { @@ -122,109 +110,7 @@ <0 69 4>; }; - dcc { - compatible = "arm,vexpress,config-bus"; - arm,vexpress,config-bridge = <&v2m_sysreg>; - - osc@0 { - /* CPU PLL reference clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 0>; - freq-range = <50000000 60000000>; - #clock-cells = <0>; - clock-output-names = "oscclk0"; - }; - - osc@4 { - /* Multiplexed AXI master clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 4>; - freq-range = <20000000 40000000>; - #clock-cells = <0>; - clock-output-names = "oscclk4"; - }; - - oscclk5: osc@5 { - /* HDLCD PLL reference clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 5>; - freq-range = <23750000 165000000>; - #clock-cells = <0>; - clock-output-names = "oscclk5"; - }; - - smbclk: osc@6 { - /* SMB clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 6>; - freq-range = <20000000 50000000>; - #clock-cells = <0>; - clock-output-names = "oscclk6"; - }; - - oscclk7: osc@7 { - /* SYS PLL reference clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 7>; - freq-range = <20000000 60000000>; - #clock-cells = <0>; - clock-output-names = "oscclk7"; - }; - - osc@8 { - /* DDR2 PLL reference clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 8>; - freq-range = <40000000 40000000>; - #clock-cells = <0>; - clock-output-names = "oscclk8"; - }; - - volt@0 { - /* CPU core voltage */ - compatible = "arm,vexpress-volt"; - arm,vexpress-sysreg,func = <2 0>; - regulator-name = "Cores"; - regulator-min-microvolt = <800000>; - regulator-max-microvolt = <1050000>; - regulator-always-on; - label = "Cores"; - }; - - amp@0 { - /* Total current for the two cores */ - compatible = "arm,vexpress-amp"; - arm,vexpress-sysreg,func = <3 0>; - label = "Cores"; - }; - - temp@0 { - /* DCC internal temperature */ - compatible = "arm,vexpress-temp"; - arm,vexpress-sysreg,func = <4 0>; - label = "DCC"; - }; - - power@0 { - /* Total power */ - compatible = "arm,vexpress-power"; - arm,vexpress-sysreg,func = <12 0>; - label = "Cores"; - }; - - energy@0 { - /* Total energy */ - compatible = "arm,vexpress-energy"; - arm,vexpress-sysreg,func = <13 0>; - label = "Cores"; - }; - }; - - smb { - compatible = "simple-bus"; - - #address-cells = <2>; - #size-cells = <1>; + motherboard { ranges = <0 0 0 0x08000000 0x04000000>, <1 0 0 0x14000000 0x04000000>, <2 0 0 0x18000000 0x04000000>, @@ -232,7 +118,6 @@ <4 0 0 0x0c000000 0x04000000>, <5 0 0 0x10000000 0x04000000>; - #interrupt-cells = <1>; interrupt-map-mask = <0 0 63>; interrupt-map = <0 0 0 &gic 0 0 4>, <0 0 1 &gic 0 1 4>, @@ -277,7 +162,7 @@ <0 0 40 &gic 0 40 4>, <0 0 41 &gic 0 41 4>, <0 0 42 &gic 0 42 4>; - - /include/ "vexpress-v2m-rs1.dtsi" }; }; + +/include/ "vexpress-v2m-rs1.dtsi" diff --git a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts index 1fc405a9ecfb..4890a81c5467 100644 --- a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts +++ b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts @@ -12,7 +12,6 @@ / { model = "V2P-CA15_CA7"; arm,hbi = <0x249>; - arm,vexpress,site = <0xf>; compatible = "arm,vexpress,v2p-ca15_a7", "arm,vexpress"; interrupt-parent = <&gic>; #address-cells = <2>; @@ -75,23 +74,17 @@ compatible = "arm,sp805", "arm,primecell"; reg = <0 0x2a490000 0 0x1000>; interrupts = <98>; - clocks = <&oscclk6a>, <&oscclk6a>; - clock-names = "wdogclk", "apb_pclk"; }; hdlcd@2b000000 { compatible = "arm,hdlcd"; reg = <0 0x2b000000 0 0x1000>; interrupts = <0 85 4>; - clocks = <&oscclk5>; - clock-names = "pxlclk"; }; memory-controller@2b0a0000 { compatible = "arm,pl341", "arm,primecell"; reg = <0 0x2b0a0000 0 0x1000>; - clocks = <&oscclk6a>; - clock-names = "apb_pclk"; }; gic: interrupt-controller@2c001000 { @@ -111,8 +104,6 @@ reg = <0 0x7ffd0000 0 0x1000>; interrupts = <0 86 4>, <0 87 4>; - clocks = <&oscclk6a>; - clock-names = "apb_pclk"; }; dma@7ff00000 { @@ -123,8 +114,6 @@ <0 89 4>, <0 90 4>, <0 91 4>; - clocks = <&oscclk6a>; - clock-names = "apb_pclk"; }; timer { @@ -141,175 +130,7 @@ <0 69 4>; }; - oscclk6a: oscclk6a { - /* Reference 24MHz clock */ - compatible = "fixed-clock"; - #clock-cells = <0>; - clock-frequency = <24000000>; - clock-output-names = "oscclk6a"; - }; - - dcc { - compatible = "arm,vexpress,config-bus"; - arm,vexpress,config-bridge = <&v2m_sysreg>; - - osc@0 { - /* A15 PLL 0 reference clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 0>; - freq-range = <17000000 50000000>; - #clock-cells = <0>; - clock-output-names = "oscclk0"; - }; - - osc@1 { - /* A15 PLL 1 reference clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 1>; - freq-range = <17000000 50000000>; - #clock-cells = <0>; - clock-output-names = "oscclk1"; - }; - - osc@2 { - /* A7 PLL 0 reference clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 2>; - freq-range = <17000000 50000000>; - #clock-cells = <0>; - clock-output-names = "oscclk2"; - }; - - osc@3 { - /* A7 PLL 1 reference clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 3>; - freq-range = <17000000 50000000>; - #clock-cells = <0>; - clock-output-names = "oscclk3"; - }; - - osc@4 { - /* External AXI master clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 4>; - freq-range = <20000000 40000000>; - #clock-cells = <0>; - clock-output-names = "oscclk4"; - }; - - oscclk5: osc@5 { - /* HDLCD PLL reference clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 5>; - freq-range = <23750000 165000000>; - #clock-cells = <0>; - clock-output-names = "oscclk5"; - }; - - smbclk: osc@6 { - /* Static memory controller clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 6>; - freq-range = <20000000 40000000>; - #clock-cells = <0>; - clock-output-names = "oscclk6"; - }; - - osc@7 { - /* SYS PLL reference clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 7>; - freq-range = <17000000 50000000>; - #clock-cells = <0>; - clock-output-names = "oscclk7"; - }; - - osc@8 { - /* DDR2 PLL reference clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 8>; - freq-range = <20000000 50000000>; - #clock-cells = <0>; - clock-output-names = "oscclk8"; - }; - - volt@0 { - /* A15 CPU core voltage */ - compatible = "arm,vexpress-volt"; - arm,vexpress-sysreg,func = <2 0>; - regulator-name = "A15 Vcore"; - regulator-min-microvolt = <800000>; - regulator-max-microvolt = <1050000>; - regulator-always-on; - label = "A15 Vcore"; - }; - - volt@1 { - /* A7 CPU core voltage */ - compatible = "arm,vexpress-volt"; - arm,vexpress-sysreg,func = <2 1>; - regulator-name = "A7 Vcore"; - regulator-min-microvolt = <800000>; - regulator-max-microvolt = <1050000>; - regulator-always-on; - label = "A7 Vcore"; - }; - - amp@0 { - /* Total current for the two A15 cores */ - compatible = "arm,vexpress-amp"; - arm,vexpress-sysreg,func = <3 0>; - label = "A15 Icore"; - }; - - amp@1 { - /* Total current for the three A7 cores */ - compatible = "arm,vexpress-amp"; - arm,vexpress-sysreg,func = <3 1>; - label = "A7 Icore"; - }; - - temp@0 { - /* DCC internal temperature */ - compatible = "arm,vexpress-temp"; - arm,vexpress-sysreg,func = <4 0>; - label = "DCC"; - }; - - power@0 { - /* Total power for the two A15 cores */ - compatible = "arm,vexpress-power"; - arm,vexpress-sysreg,func = <12 0>; - label = "A15 Pcore"; - }; - power@1 { - /* Total power for the three A7 cores */ - compatible = "arm,vexpress-power"; - arm,vexpress-sysreg,func = <12 1>; - label = "A7 Pcore"; - }; - - energy@0 { - /* Total energy for the two A15 cores */ - compatible = "arm,vexpress-energy"; - arm,vexpress-sysreg,func = <13 0>; - label = "A15 Jcore"; - }; - - energy@2 { - /* Total energy for the three A7 cores */ - compatible = "arm,vexpress-energy"; - arm,vexpress-sysreg,func = <13 2>; - label = "A7 Jcore"; - }; - }; - - smb { - compatible = "simple-bus"; - - #address-cells = <2>; - #size-cells = <1>; + motherboard { ranges = <0 0 0 0x08000000 0x04000000>, <1 0 0 0x14000000 0x04000000>, <2 0 0 0x18000000 0x04000000>, @@ -317,7 +138,6 @@ <4 0 0 0x0c000000 0x04000000>, <5 0 0 0x10000000 0x04000000>; - #interrupt-cells = <1>; interrupt-map-mask = <0 0 63>; interrupt-map = <0 0 0 &gic 0 0 4>, <0 0 1 &gic 0 1 4>, @@ -362,7 +182,7 @@ <0 0 40 &gic 0 40 4>, <0 0 41 &gic 0 41 4>, <0 0 42 &gic 0 42 4>; - - /include/ "vexpress-v2m-rs1.dtsi" }; }; + +/include/ "vexpress-v2m-rs1.dtsi" diff --git a/arch/arm/boot/dts/vexpress-v2p-ca5s.dts b/arch/arm/boot/dts/vexpress-v2p-ca5s.dts index 6328cbc71d30..18917a0f8604 100644 --- a/arch/arm/boot/dts/vexpress-v2p-ca5s.dts +++ b/arch/arm/boot/dts/vexpress-v2p-ca5s.dts @@ -12,7 +12,6 @@ / { model = "V2P-CA5s"; arm,hbi = <0x225>; - arm,vexpress,site = <0xf>; compatible = "arm,vexpress,v2p-ca5s", "arm,vexpress"; interrupt-parent = <&gic>; #address-cells = <1>; @@ -57,15 +56,11 @@ compatible = "arm,hdlcd"; reg = <0x2a110000 0x1000>; interrupts = <0 85 4>; - clocks = <&oscclk3>; - clock-names = "pxlclk"; }; memory-controller@2a150000 { compatible = "arm,pl341", "arm,primecell"; reg = <0x2a150000 0x1000>; - clocks = <&oscclk1>; - clock-names = "apb_pclk"; }; memory-controller@2a190000 { @@ -73,8 +68,6 @@ reg = <0x2a190000 0x1000>; interrupts = <0 86 4>, <0 87 4>; - clocks = <&oscclk1>; - clock-names = "apb_pclk"; }; scu@2c000000 { @@ -116,77 +109,7 @@ <0 69 4>; }; - dcc { - compatible = "arm,vexpress,config-bus"; - arm,vexpress,config-bridge = <&v2m_sysreg>; - - osc@0 { - /* CPU and internal AXI reference clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 0>; - freq-range = <50000000 100000000>; - #clock-cells = <0>; - clock-output-names = "oscclk0"; - }; - - oscclk1: osc@1 { - /* Multiplexed AXI master clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 1>; - freq-range = <5000000 50000000>; - #clock-cells = <0>; - clock-output-names = "oscclk1"; - }; - - osc@2 { - /* DDR2 */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 2>; - freq-range = <80000000 120000000>; - #clock-cells = <0>; - clock-output-names = "oscclk2"; - }; - - oscclk3: osc@3 { - /* HDLCD */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 3>; - freq-range = <23750000 165000000>; - #clock-cells = <0>; - clock-output-names = "oscclk3"; - }; - - osc@4 { - /* Test chip gate configuration */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 4>; - freq-range = <80000000 80000000>; - #clock-cells = <0>; - clock-output-names = "oscclk4"; - }; - - smbclk: osc@5 { - /* SMB clock */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 5>; - freq-range = <25000000 60000000>; - #clock-cells = <0>; - clock-output-names = "oscclk5"; - }; - - temp@0 { - /* DCC internal operating temperature */ - compatible = "arm,vexpress-temp"; - arm,vexpress-sysreg,func = <4 0>; - label = "DCC"; - }; - }; - - smb { - compatible = "simple-bus"; - - #address-cells = <2>; - #size-cells = <1>; + motherboard { ranges = <0 0 0x08000000 0x04000000>, <1 0 0x14000000 0x04000000>, <2 0 0x18000000 0x04000000>, @@ -194,7 +117,6 @@ <4 0 0x0c000000 0x04000000>, <5 0 0x10000000 0x04000000>; - #interrupt-cells = <1>; interrupt-map-mask = <0 0 63>; interrupt-map = <0 0 0 &gic 0 0 4>, <0 0 1 &gic 0 1 4>, @@ -239,7 +161,7 @@ <0 0 40 &gic 0 40 4>, <0 0 41 &gic 0 41 4>, <0 0 42 &gic 0 42 4>; - - /include/ "vexpress-v2m-rs1.dtsi" }; }; + +/include/ "vexpress-v2m-rs1.dtsi" diff --git a/arch/arm/boot/dts/vexpress-v2p-ca9.dts b/arch/arm/boot/dts/vexpress-v2p-ca9.dts index 1420bb14d95c..3f0c736d31d6 100644 --- a/arch/arm/boot/dts/vexpress-v2p-ca9.dts +++ b/arch/arm/boot/dts/vexpress-v2p-ca9.dts @@ -12,7 +12,6 @@ / { model = "V2P-CA9"; arm,hbi = <0x191>; - arm,vexpress,site = <0xf>; compatible = "arm,vexpress,v2p-ca9", "arm,vexpress"; interrupt-parent = <&gic>; #address-cells = <1>; @@ -71,15 +70,11 @@ compatible = "arm,pl111", "arm,primecell"; reg = <0x10020000 0x1000>; interrupts = <0 44 4>; - clocks = <&oscclk1>, <&oscclk2>; - clock-names = "clcdclk", "apb_pclk"; }; memory-controller@100e0000 { compatible = "arm,pl341", "arm,primecell"; reg = <0x100e0000 0x1000>; - clocks = <&oscclk2>; - clock-names = "apb_pclk"; }; memory-controller@100e1000 { @@ -87,8 +82,6 @@ reg = <0x100e1000 0x1000>; interrupts = <0 45 4>, <0 46 4>; - clocks = <&oscclk2>; - clock-names = "apb_pclk"; }; timer@100e4000 { @@ -96,16 +89,12 @@ reg = <0x100e4000 0x1000>; interrupts = <0 48 4>, <0 49 4>; - clocks = <&oscclk2>, <&oscclk2>; - clock-names = "timclk", "apb_pclk"; }; watchdog@100e5000 { compatible = "arm,sp805", "arm,primecell"; reg = <0x100e5000 0x1000>; interrupts = <0 51 4>; - clocks = <&oscclk2>, <&oscclk2>; - clock-names = "wdogclk", "apb_pclk"; }; scu@1e000000 { @@ -151,132 +140,13 @@ <0 63 4>; }; - dcc { - compatible = "arm,vexpress,config-bus"; - arm,vexpress,config-bridge = <&v2m_sysreg>; - - osc@0 { - /* ACLK clock to the AXI master port on the test chip */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 0>; - freq-range = <30000000 50000000>; - #clock-cells = <0>; - clock-output-names = "extsaxiclk"; - }; - - oscclk1: osc@1 { - /* Reference clock for the CLCD */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 1>; - freq-range = <10000000 80000000>; - #clock-cells = <0>; - clock-output-names = "clcdclk"; - }; - - smbclk: oscclk2: osc@2 { - /* Reference clock for the test chip internal PLLs */ - compatible = "arm,vexpress-osc"; - arm,vexpress-sysreg,func = <1 2>; - freq-range = <33000000 100000000>; - #clock-cells = <0>; - clock-output-names = "tcrefclk"; - }; - - volt@0 { - /* Test Chip internal logic voltage */ - compatible = "arm,vexpress-volt"; - arm,vexpress-sysreg,func = <2 0>; - regulator-name = "VD10"; - regulator-always-on; - label = "VD10"; - }; - - volt@1 { - /* PL310, L2 cache, RAM cell supply (not PL310 logic) */ - compatible = "arm,vexpress-volt"; - arm,vexpress-sysreg,func = <2 1>; - regulator-name = "VD10_S2"; - regulator-always-on; - label = "VD10_S2"; - }; - - volt@2 { - /* Cortex-A9 system supply, Cores, MPEs, SCU and PL310 logic */ - compatible = "arm,vexpress-volt"; - arm,vexpress-sysreg,func = <2 2>; - regulator-name = "VD10_S3"; - regulator-always-on; - label = "VD10_S3"; - }; - - volt@3 { - /* DDR2 SDRAM and Test Chip DDR2 I/O supply */ - compatible = "arm,vexpress-volt"; - arm,vexpress-sysreg,func = <2 3>; - regulator-name = "VCC1V8"; - regulator-always-on; - label = "VCC1V8"; - }; - - volt@4 { - /* DDR2 SDRAM VTT termination voltage */ - compatible = "arm,vexpress-volt"; - arm,vexpress-sysreg,func = <2 4>; - regulator-name = "DDR2VTT"; - regulator-always-on; - label = "DDR2VTT"; - }; - - volt@5 { - /* Local board supply for miscellaneous logic external to the Test Chip */ - arm,vexpress-sysreg,func = <2 5>; - compatible = "arm,vexpress-volt"; - regulator-name = "VCC3V3"; - regulator-always-on; - label = "VCC3V3"; - }; - - amp@0 { - /* PL310, L2 cache, RAM cell supply (not PL310 logic) */ - compatible = "arm,vexpress-amp"; - arm,vexpress-sysreg,func = <3 0>; - label = "VD10_S2"; - }; - - amp@1 { - /* Cortex-A9 system supply, Cores, MPEs, SCU and PL310 logic */ - compatible = "arm,vexpress-amp"; - arm,vexpress-sysreg,func = <3 1>; - label = "VD10_S3"; - }; - - power@0 { - /* PL310, L2 cache, RAM cell supply (not PL310 logic) */ - compatible = "arm,vexpress-power"; - arm,vexpress-sysreg,func = <12 0>; - label = "PVD10_S2"; - }; - - power@1 { - /* Cortex-A9 system supply, Cores, MPEs, SCU and PL310 logic */ - compatible = "arm,vexpress-power"; - arm,vexpress-sysreg,func = <12 1>; - label = "PVD10_S3"; - }; - }; - - smb { - compatible = "simple-bus"; - - #address-cells = <2>; - #size-cells = <1>; + motherboard { ranges = <0 0 0x40000000 0x04000000>, <1 0 0x44000000 0x04000000>, <2 0 0x48000000 0x04000000>, <3 0 0x4c000000 0x04000000>, <7 0 0x10000000 0x00020000>; - #interrupt-cells = <1>; interrupt-map-mask = <0 0 63>; interrupt-map = <0 0 0 &gic 0 0 4>, <0 0 1 &gic 0 1 4>, @@ -321,7 +191,7 @@ <0 0 40 &gic 0 40 4>, <0 0 41 &gic 0 41 4>, <0 0 42 &gic 0 42 4>; - - /include/ "vexpress-v2m.dtsi" }; }; + +/include/ "vexpress-v2m.dtsi" diff --git a/arch/arm/include/asm/hardware/sp810.h b/arch/arm/include/asm/hardware/sp810.h index 2cdcf4476769..6b9b077d86b3 100644 --- a/arch/arm/include/asm/hardware/sp810.h +++ b/arch/arm/include/asm/hardware/sp810.h @@ -50,6 +50,12 @@ #define SCPCELLID2 0xFF8 #define SCPCELLID3 0xFFC +#define SCCTRL_TIMEREN0SEL_REFCLK (0 << 15) +#define SCCTRL_TIMEREN0SEL_TIMCLK (1 << 15) + +#define SCCTRL_TIMEREN1SEL_REFCLK (0 << 17) +#define SCCTRL_TIMEREN1SEL_TIMCLK (1 << 17) + static inline void sysctl_soft_reset(void __iomem *base) { /* switch to slow mode */ diff --git a/arch/arm/mach-vexpress/Kconfig b/arch/arm/mach-vexpress/Kconfig index 99e63f5f99d1..c95296066203 100644 --- a/arch/arm/mach-vexpress/Kconfig +++ b/arch/arm/mach-vexpress/Kconfig @@ -1,12 +1,11 @@ config ARCH_VEXPRESS bool "ARM Ltd. Versatile Express family" if ARCH_MULTI_V7 - select ARCH_REQUIRE_GPIOLIB + select ARCH_WANT_OPTIONAL_GPIOLIB select ARM_AMBA select ARM_GIC select ARM_TIMER_SP804 select CLKDEV_LOOKUP select COMMON_CLK - select COMMON_CLK_VERSATILE select CPU_V7 select GENERIC_CLOCKEVENTS select HAVE_CLK @@ -18,7 +17,6 @@ config ARCH_VEXPRESS select PLAT_VERSATILE select PLAT_VERSATILE_CLCD select REGULATOR_FIXED_VOLTAGE if REGULATOR - select VEXPRESS_CONFIG help This option enables support for systems using Cortex processor based ARM core and logic (FPGA) tiles on the Versatile Express motherboard, diff --git a/arch/arm/mach-vexpress/Makefile b/arch/arm/mach-vexpress/Makefile index 80b64971fbdd..42703e8b4d3b 100644 --- a/arch/arm/mach-vexpress/Makefile +++ b/arch/arm/mach-vexpress/Makefile @@ -4,7 +4,7 @@ ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include \ -I$(srctree)/arch/arm/plat-versatile/include -obj-y := v2m.o reset.o +obj-y := v2m.o obj-$(CONFIG_ARCH_VEXPRESS_CA9X4) += ct-ca9x4.o obj-$(CONFIG_SMP) += platsmp.o obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o diff --git a/arch/arm/mach-vexpress/ct-ca9x4.c b/arch/arm/mach-vexpress/ct-ca9x4.c index 60838ddb8564..4f471fa3e3c5 100644 --- a/arch/arm/mach-vexpress/ct-ca9x4.c +++ b/arch/arm/mach-vexpress/ct-ca9x4.c @@ -9,7 +9,6 @@ #include #include #include -#include #include #include @@ -65,6 +64,19 @@ static void __init ct_ca9x4_init_irq(void) ca9x4_twd_init(); } +static void ct_ca9x4_clcd_enable(struct clcd_fb *fb) +{ + u32 site = v2m_get_master_site(); + + /* + * Old firmware was using the "site" component of the command + * to control the DVI muxer (while it should be always 0 ie. MB). + * Newer firmware uses the data register. Keep both for compatibility. + */ + v2m_cfg_write(SYS_CFG_MUXFPGA | SYS_CFG_SITE(site), site); + v2m_cfg_write(SYS_CFG_DVIMODE | SYS_CFG_SITE(SYS_CFG_SITE_MB), 2); +} + static int ct_ca9x4_clcd_setup(struct clcd_fb *fb) { unsigned long framesize = 1024 * 768 * 2; @@ -81,6 +93,7 @@ static struct clcd_board ct_ca9x4_clcd_data = { .caps = CLCD_CAP_5551 | CLCD_CAP_565, .check = clcdfb_check, .decode = clcdfb_decode, + .enable = ct_ca9x4_clcd_enable, .setup = ct_ca9x4_clcd_setup, .mmap = versatile_clcd_mmap_dma, .remove = versatile_clcd_remove_dma, @@ -98,6 +111,14 @@ static struct amba_device *ct_ca9x4_amba_devs[] __initdata = { &gpio_device, }; + +static struct v2m_osc ct_osc1 = { + .osc = 1, + .rate_min = 10000000, + .rate_max = 80000000, + .rate_default = 23750000, +}; + static struct resource pmu_resources[] = { [0] = { .start = IRQ_CT_CA9X4_PMU_CPU0, @@ -128,18 +149,10 @@ static struct platform_device pmu_device = { .resource = pmu_resources, }; -static struct platform_device osc1_device = { - .name = "vexpress-osc", - .id = 1, - .num_resources = 1, - .resource = (struct resource []) { - VEXPRESS_RES_FUNC(0xf, 1), - }, -}; - static void __init ct_ca9x4_init(void) { int i; + struct clk *clk; #ifdef CONFIG_CACHE_L2X0 void __iomem *l2x0_base = ioremap(CT_CA9X4_L2CC, SZ_4K); @@ -151,14 +164,14 @@ static void __init ct_ca9x4_init(void) l2x0_init(l2x0_base, 0x00400000, 0xfe0fffff); #endif + ct_osc1.site = v2m_get_master_site(); + clk = v2m_osc_register("ct:osc1", &ct_osc1); + clk_register_clkdev(clk, NULL, "ct:clcd"); + for (i = 0; i < ARRAY_SIZE(ct_ca9x4_amba_devs); i++) amba_device_register(ct_ca9x4_amba_devs[i], &iomem_resource); platform_device_register(&pmu_device); - platform_device_register(&osc1_device); - - WARN_ON(clk_register_clkdev(vexpress_osc_setup(&osc1_device.dev), - NULL, "ct:clcd")); } #ifdef CONFIG_SMP diff --git a/arch/arm/mach-vexpress/include/mach/motherboard.h b/arch/arm/mach-vexpress/include/mach/motherboard.h index 68abc8b72781..1e388c7bf4d7 100644 --- a/arch/arm/mach-vexpress/include/mach/motherboard.h +++ b/arch/arm/mach-vexpress/include/mach/motherboard.h @@ -1,6 +1,8 @@ #ifndef __MACH_MOTHERBOARD_H #define __MACH_MOTHERBOARD_H +#include + /* * Physical addresses, offset from V2M_PA_CS0-3 */ @@ -39,6 +41,31 @@ #define V2M_CF (V2M_PA_CS7 + 0x0001a000) #define V2M_CLCD (V2M_PA_CS7 + 0x0001f000) +/* + * Offsets from SYSREGS base + */ +#define V2M_SYS_ID 0x000 +#define V2M_SYS_SW 0x004 +#define V2M_SYS_LED 0x008 +#define V2M_SYS_100HZ 0x024 +#define V2M_SYS_FLAGS 0x030 +#define V2M_SYS_FLAGSSET 0x030 +#define V2M_SYS_FLAGSCLR 0x034 +#define V2M_SYS_NVFLAGS 0x038 +#define V2M_SYS_NVFLAGSSET 0x038 +#define V2M_SYS_NVFLAGSCLR 0x03c +#define V2M_SYS_MCI 0x048 +#define V2M_SYS_FLASH 0x03c +#define V2M_SYS_CFGSW 0x058 +#define V2M_SYS_24MHZ 0x05c +#define V2M_SYS_MISC 0x060 +#define V2M_SYS_DMA 0x064 +#define V2M_SYS_PROCID0 0x084 +#define V2M_SYS_PROCID1 0x088 +#define V2M_SYS_CFGDATA 0x0a0 +#define V2M_SYS_CFGCTRL 0x0a4 +#define V2M_SYS_CFGSTAT 0x0a8 + /* * Interrupts. Those in {} are for AMBA devices @@ -63,6 +90,43 @@ #define IRQ_V2M_PCIE (32 + 17) +/* + * Configuration + */ +#define SYS_CFG_START (1 << 31) +#define SYS_CFG_WRITE (1 << 30) +#define SYS_CFG_OSC (1 << 20) +#define SYS_CFG_VOLT (2 << 20) +#define SYS_CFG_AMP (3 << 20) +#define SYS_CFG_TEMP (4 << 20) +#define SYS_CFG_RESET (5 << 20) +#define SYS_CFG_SCC (6 << 20) +#define SYS_CFG_MUXFPGA (7 << 20) +#define SYS_CFG_SHUTDOWN (8 << 20) +#define SYS_CFG_REBOOT (9 << 20) +#define SYS_CFG_DVIMODE (11 << 20) +#define SYS_CFG_POWER (12 << 20) +#define SYS_CFG_SITE(n) ((n) << 16) +#define SYS_CFG_SITE_MB 0 +#define SYS_CFG_SITE_DB1 1 +#define SYS_CFG_SITE_DB2 2 +#define SYS_CFG_STACK(n) ((n) << 12) + +#define SYS_CFG_ERR (1 << 1) +#define SYS_CFG_COMPLETE (1 << 0) + +int v2m_cfg_write(u32 devfn, u32 data); +int v2m_cfg_read(u32 devfn, u32 *data); +void v2m_flags_set(u32 data); + +/* + * Miscellaneous + */ +#define SYS_MISC_MASTERSITE (1 << 14) +#define SYS_PROCIDx_HBI_MASK 0xfff + +int v2m_get_master_site(void); + /* * Core tile IDs */ @@ -85,4 +149,21 @@ struct ct_desc { extern struct ct_desc *ct_desc; +/* + * OSC clock provider + */ +struct v2m_osc { + struct clk_hw hw; + u8 site; /* 0 = motherboard, 1 = site 1, 2 = site 2 */ + u8 stack; /* board stack position */ + u16 osc; + unsigned long rate_min; + unsigned long rate_max; + unsigned long rate_default; +}; + +#define to_v2m_osc(osc) container_of(osc, struct v2m_osc, hw) + +struct clk *v2m_osc_register(const char *name, struct v2m_osc *osc); + #endif diff --git a/arch/arm/mach-vexpress/platsmp.c b/arch/arm/mach-vexpress/platsmp.c index c5d70de9bb4e..7db27c8c05cc 100644 --- a/arch/arm/mach-vexpress/platsmp.c +++ b/arch/arm/mach-vexpress/platsmp.c @@ -13,7 +13,6 @@ #include #include #include -#include #include #include @@ -194,7 +193,7 @@ static void __init vexpress_smp_prepare_cpus(unsigned int max_cpus) * until it receives a soft interrupt, and then the * secondary CPU branches to this address. */ - vexpress_flags_set(virt_to_phys(versatile_secondary_startup)); + v2m_flags_set(virt_to_phys(versatile_secondary_startup)); } struct smp_operations __initdata vexpress_smp_ops = { diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c index 4e168e81fb42..560e0df728f8 100644 --- a/arch/arm/mach-vexpress/v2m.c +++ b/arch/arm/mach-vexpress/v2m.c @@ -16,10 +16,11 @@ #include #include #include +#include +#include #include #include #include -#include #include #include @@ -32,6 +33,7 @@ #include #include #include +#include #include #include @@ -56,6 +58,22 @@ static struct map_desc v2m_io_desc[] __initdata = { }, }; +static void __iomem *v2m_sysreg_base; + +static void __init v2m_sysctl_init(void __iomem *base) +{ + u32 scctrl; + + if (WARN_ON(!base)) + return; + + /* Select 1MHz TIMCLK as the reference clock for SP804 timers */ + scctrl = readl(base + SCCTRL); + scctrl |= SCCTRL_TIMEREN0SEL_TIMCLK; + scctrl |= SCCTRL_TIMEREN1SEL_TIMCLK; + writel(scctrl, base + SCCTRL); +} + static void __init v2m_sp804_init(void __iomem *base, unsigned int irq) { if (WARN_ON(!base || irq == NO_IRQ)) @@ -69,6 +87,69 @@ static void __init v2m_sp804_init(void __iomem *base, unsigned int irq) } +static DEFINE_SPINLOCK(v2m_cfg_lock); + +int v2m_cfg_write(u32 devfn, u32 data) +{ + /* Configuration interface broken? */ + u32 val; + + printk("%s: writing %08x to %08x\n", __func__, data, devfn); + + devfn |= SYS_CFG_START | SYS_CFG_WRITE; + + spin_lock(&v2m_cfg_lock); + val = readl(v2m_sysreg_base + V2M_SYS_CFGSTAT); + writel(val & ~SYS_CFG_COMPLETE, v2m_sysreg_base + V2M_SYS_CFGSTAT); + + writel(data, v2m_sysreg_base + V2M_SYS_CFGDATA); + writel(devfn, v2m_sysreg_base + V2M_SYS_CFGCTRL); + + do { + val = readl(v2m_sysreg_base + V2M_SYS_CFGSTAT); + } while (val == 0); + spin_unlock(&v2m_cfg_lock); + + return !!(val & SYS_CFG_ERR); +} + +int v2m_cfg_read(u32 devfn, u32 *data) +{ + u32 val; + + devfn |= SYS_CFG_START; + + spin_lock(&v2m_cfg_lock); + writel(0, v2m_sysreg_base + V2M_SYS_CFGSTAT); + writel(devfn, v2m_sysreg_base + V2M_SYS_CFGCTRL); + + mb(); + + do { + cpu_relax(); + val = readl(v2m_sysreg_base + V2M_SYS_CFGSTAT); + } while (val == 0); + + *data = readl(v2m_sysreg_base + V2M_SYS_CFGDATA); + spin_unlock(&v2m_cfg_lock); + + return !!(val & SYS_CFG_ERR); +} + +void __init v2m_flags_set(u32 data) +{ + writel(~0, v2m_sysreg_base + V2M_SYS_FLAGSCLR); + writel(data, v2m_sysreg_base + V2M_SYS_FLAGSSET); +} + +int v2m_get_master_site(void) +{ + u32 misc = readl(v2m_sysreg_base + V2M_SYS_MISC); + + return misc & SYS_MISC_MASTERSITE ? SYS_CFG_SITE_DB2 : SYS_CFG_SITE_DB1; +} + + static struct resource v2m_pcie_i2c_resource = { .start = V2M_SERIAL_BUS_PCI, .end = V2M_SERIAL_BUS_PCI + SZ_4K - 1, @@ -156,8 +237,14 @@ static struct platform_device v2m_usb_device = { .dev.platform_data = &v2m_usb_config, }; +static void v2m_flash_set_vpp(struct platform_device *pdev, int on) +{ + writel(on != 0, v2m_sysreg_base + V2M_SYS_FLASH); +} + static struct physmap_flash_data v2m_flash_data = { .width = 4, + .set_vpp = v2m_flash_set_vpp, }; static struct resource v2m_flash_resources[] = { @@ -204,61 +291,14 @@ static struct platform_device v2m_cf_device = { .dev.platform_data = &v2m_pata_data, }; +static unsigned int v2m_mmci_status(struct device *dev) +{ + return readl(v2m_sysreg_base + V2M_SYS_MCI) & (1 << 0); +} + static struct mmci_platform_data v2m_mmci_data = { .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, - .gpio_wp = VEXPRESS_GPIO_MMC_WPROT, - .gpio_cd = VEXPRESS_GPIO_MMC_CARDIN, -}; - -static struct resource v2m_sysreg_resources[] = { - { - .start = V2M_SYSREGS, - .end = V2M_SYSREGS + 0xfff, - .flags = IORESOURCE_MEM, - }, -}; - -static struct platform_device v2m_sysreg_device = { - .name = "vexpress-sysreg", - .id = -1, - .resource = v2m_sysreg_resources, - .num_resources = ARRAY_SIZE(v2m_sysreg_resources), -}; - -static struct platform_device v2m_muxfpga_device = { - .name = "vexpress-muxfpga", - .id = 0, - .num_resources = 1, - .resource = (struct resource []) { - VEXPRESS_RES_FUNC(0, 7), - } -}; - -static struct platform_device v2m_shutdown_device = { - .name = "vexpress-shutdown", - .id = 0, - .num_resources = 1, - .resource = (struct resource []) { - VEXPRESS_RES_FUNC(0, 8), - } -}; - -static struct platform_device v2m_reboot_device = { - .name = "vexpress-reboot", - .id = 0, - .num_resources = 1, - .resource = (struct resource []) { - VEXPRESS_RES_FUNC(0, 9), - } -}; - -static struct platform_device v2m_dvimode_device = { - .name = "vexpress-dvimode", - .id = 0, - .num_resources = 1, - .resource = (struct resource []) { - VEXPRESS_RES_FUNC(0, 11), - } + .status = v2m_mmci_status, }; static AMBA_APB_DEVICE(aaci, "mb:aaci", 0, V2M_AACI, IRQ_V2M_AACI, NULL); @@ -285,9 +325,123 @@ static struct amba_device *v2m_amba_devs[] __initdata = { &rtc_device, }; + +static unsigned long v2m_osc_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct v2m_osc *osc = to_v2m_osc(hw); + + return !parent_rate ? osc->rate_default : parent_rate; +} + +static long v2m_osc_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *parent_rate) +{ + struct v2m_osc *osc = to_v2m_osc(hw); + + if (WARN_ON(rate < osc->rate_min)) + rate = osc->rate_min; + + if (WARN_ON(rate > osc->rate_max)) + rate = osc->rate_max; + + return rate; +} + +static int v2m_osc_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct v2m_osc *osc = to_v2m_osc(hw); + + v2m_cfg_write(SYS_CFG_OSC | SYS_CFG_SITE(osc->site) | + SYS_CFG_STACK(osc->stack) | osc->osc, rate); + + return 0; +} + +static struct clk_ops v2m_osc_ops = { + .recalc_rate = v2m_osc_recalc_rate, + .round_rate = v2m_osc_round_rate, + .set_rate = v2m_osc_set_rate, +}; + +struct clk * __init v2m_osc_register(const char *name, struct v2m_osc *osc) +{ + struct clk_init_data init; + + WARN_ON(osc->site > 2); + WARN_ON(osc->stack > 15); + WARN_ON(osc->osc > 4095); + + init.name = name; + init.ops = &v2m_osc_ops; + init.flags = CLK_IS_ROOT; + init.num_parents = 0; + + osc->hw.init = &init; + + return clk_register(NULL, &osc->hw); +} + +static struct v2m_osc v2m_mb_osc1 = { + .site = SYS_CFG_SITE_MB, + .osc = 1, + .rate_min = 23750000, + .rate_max = 63500000, + .rate_default = 23750000, +}; + +static const char *v2m_ref_clk_periphs[] __initconst = { + "mb:wdt", "1000f000.wdt", "1c0f0000.wdt", /* SP805 WDT */ +}; + +static const char *v2m_osc1_periphs[] __initconst = { + "mb:clcd", "1001f000.clcd", "1c1f0000.clcd", /* PL111 CLCD */ +}; + +static const char *v2m_osc2_periphs[] __initconst = { + "mb:mmci", "10005000.mmci", "1c050000.mmci", /* PL180 MMCI */ + "mb:kmi0", "10006000.kmi", "1c060000.kmi", /* PL050 KMI0 */ + "mb:kmi1", "10007000.kmi", "1c070000.kmi", /* PL050 KMI1 */ + "mb:uart0", "10009000.uart", "1c090000.uart", /* PL011 UART0 */ + "mb:uart1", "1000a000.uart", "1c0a0000.uart", /* PL011 UART1 */ + "mb:uart2", "1000b000.uart", "1c0b0000.uart", /* PL011 UART2 */ + "mb:uart3", "1000c000.uart", "1c0c0000.uart", /* PL011 UART3 */ +}; + +static void __init v2m_clk_init(void) +{ + struct clk *clk; + int i; + + clk = clk_register_fixed_rate(NULL, "dummy_apb_pclk", NULL, + CLK_IS_ROOT, 0); + WARN_ON(clk_register_clkdev(clk, "apb_pclk", NULL)); + + clk = clk_register_fixed_rate(NULL, "mb:ref_clk", NULL, + CLK_IS_ROOT, 32768); + for (i = 0; i < ARRAY_SIZE(v2m_ref_clk_periphs); i++) + WARN_ON(clk_register_clkdev(clk, NULL, v2m_ref_clk_periphs[i])); + + clk = clk_register_fixed_rate(NULL, "mb:sp804_clk", NULL, + CLK_IS_ROOT, 1000000); + WARN_ON(clk_register_clkdev(clk, "v2m-timer0", "sp804")); + WARN_ON(clk_register_clkdev(clk, "v2m-timer1", "sp804")); + + clk = v2m_osc_register("mb:osc1", &v2m_mb_osc1); + for (i = 0; i < ARRAY_SIZE(v2m_osc1_periphs); i++) + WARN_ON(clk_register_clkdev(clk, NULL, v2m_osc1_periphs[i])); + + clk = clk_register_fixed_rate(NULL, "mb:osc2", NULL, + CLK_IS_ROOT, 24000000); + for (i = 0; i < ARRAY_SIZE(v2m_osc2_periphs); i++) + WARN_ON(clk_register_clkdev(clk, NULL, v2m_osc2_periphs[i])); +} + static void __init v2m_timer_init(void) { - vexpress_clk_init(ioremap(V2M_SYSCTL, SZ_4K)); + v2m_sysctl_init(ioremap(V2M_SYSCTL, SZ_4K)); + v2m_clk_init(); v2m_sp804_init(ioremap(V2M_TIMER01, SZ_4K), IRQ_V2M_TIMER0); } @@ -299,7 +453,19 @@ static void __init v2m_init_early(void) { if (ct_desc->init_early) ct_desc->init_early(); - versatile_sched_clock_init(vexpress_get_24mhz_clock_base(), 24000000); + versatile_sched_clock_init(v2m_sysreg_base + V2M_SYS_24MHZ, 24000000); +} + +static void v2m_power_off(void) +{ + if (v2m_cfg_write(SYS_CFG_SHUTDOWN | SYS_CFG_SITE(SYS_CFG_SITE_MB), 0)) + printk(KERN_EMERG "Unable to shutdown\n"); +} + +static void v2m_restart(char str, const char *cmd) +{ + if (v2m_cfg_write(SYS_CFG_REBOOT | SYS_CFG_SITE(SYS_CFG_SITE_MB), 0)) + printk(KERN_EMERG "Unable to reboot\n"); } struct ct_desc *ct_desc; @@ -316,7 +482,7 @@ static void __init v2m_populate_ct_desc(void) u32 current_tile_id; ct_desc = NULL; - current_tile_id = vexpress_get_procid(VEXPRESS_SITE_MASTER) + current_tile_id = readl(v2m_sysreg_base + V2M_SYS_PROCID0) & V2M_CT_ID_MASK; for (i = 0; i < ARRAY_SIZE(ct_descs) && !ct_desc; ++i) @@ -332,7 +498,7 @@ static void __init v2m_populate_ct_desc(void) static void __init v2m_map_io(void) { iotable_init(v2m_io_desc, ARRAY_SIZE(v2m_io_desc)); - vexpress_sysreg_early_init(ioremap(V2M_SYSREGS, SZ_4K)); + v2m_sysreg_base = ioremap(V2M_SYSREGS, SZ_4K); v2m_populate_ct_desc(); ct_desc->map_io(); } @@ -349,12 +515,6 @@ static void __init v2m_init(void) regulator_register_fixed(0, v2m_eth_supplies, ARRAY_SIZE(v2m_eth_supplies)); - platform_device_register(&v2m_muxfpga_device); - platform_device_register(&v2m_shutdown_device); - platform_device_register(&v2m_reboot_device); - platform_device_register(&v2m_dvimode_device); - - platform_device_register(&v2m_sysreg_device); platform_device_register(&v2m_pcie_i2c_device); platform_device_register(&v2m_ddc_i2c_device); platform_device_register(&v2m_flash_device); @@ -365,7 +525,7 @@ static void __init v2m_init(void) for (i = 0; i < ARRAY_SIZE(v2m_amba_devs); i++) amba_device_register(v2m_amba_devs[i], &iomem_resource); - pm_power_off = vexpress_power_off; + pm_power_off = v2m_power_off; ct_desc->init_tile(); } @@ -379,7 +539,7 @@ MACHINE_START(VEXPRESS, "ARM-Versatile Express") .timer = &v2m_timer, .handle_irq = gic_handle_irq, .init_machine = v2m_init, - .restart = vexpress_restart, + .restart = v2m_restart, MACHINE_END static struct map_desc v2m_rs1_io_desc __initdata = { @@ -420,13 +580,20 @@ void __init v2m_dt_map_io(void) void __init v2m_dt_init_early(void) { + struct device_node *node; u32 dt_hbi; - vexpress_sysreg_of_early_init(); + node = of_find_compatible_node(NULL, NULL, "arm,vexpress-sysreg"); + v2m_sysreg_base = of_iomap(node, 0); + if (WARN_ON(!v2m_sysreg_base)) + return; /* Confirm board type against DT property, if available */ if (of_property_read_u32(allnodes, "arm,hbi", &dt_hbi) == 0) { - u32 hbi = vexpress_get_hbi(VEXPRESS_SITE_MASTER); + int site = v2m_get_master_site(); + u32 id = readl(v2m_sysreg_base + (site == SYS_CFG_SITE_DB2 ? + V2M_SYS_PROCID1 : V2M_SYS_PROCID0)); + u32 hbi = id & SYS_PROCIDx_HBI_MASK; if (WARN_ON(dt_hbi != hbi)) pr_warning("vexpress: DT HBI (%x) is not matching " @@ -446,47 +613,51 @@ static void __init v2m_dt_init_irq(void) static void __init v2m_dt_timer_init(void) { - struct device_node *node = NULL; + struct device_node *node; + const char *path; + int err; - vexpress_clk_of_init(); + node = of_find_compatible_node(NULL, NULL, "arm,sp810"); + v2m_sysctl_init(of_iomap(node, 0)); - do { - node = of_find_compatible_node(node, NULL, "arm,sp804"); - } while (node && vexpress_get_site_by_node(node) != VEXPRESS_SITE_MB); - if (node) { - pr_info("Using SP804 '%s' as a clock & events source\n", - node->full_name); - v2m_sp804_init(of_iomap(node, 0), - irq_of_parse_and_map(node, 0)); - } + v2m_clk_init(); + err = of_property_read_string(of_aliases, "arm,v2m_timer", &path); + if (WARN_ON(err)) + return; + node = of_find_node_by_path(path); + v2m_sp804_init(of_iomap(node, 0), irq_of_parse_and_map(node, 0)); if (arch_timer_of_register() != 0) twd_local_timer_of_register(); if (arch_timer_sched_clock_init() != 0) - versatile_sched_clock_init(vexpress_get_24mhz_clock_base(), - 24000000); + versatile_sched_clock_init(v2m_sysreg_base + V2M_SYS_24MHZ, 24000000); } static struct sys_timer v2m_dt_timer = { .init = v2m_dt_timer_init, }; -static const struct of_device_id v2m_dt_bus_match[] __initconst = { - { .compatible = "simple-bus", }, - { .compatible = "arm,amba-bus", }, - { .compatible = "arm,vexpress,config-bus", }, +static struct of_dev_auxdata v2m_dt_auxdata_lookup[] __initdata = { + OF_DEV_AUXDATA("arm,vexpress-flash", V2M_NOR0, "physmap-flash", + &v2m_flash_data), + OF_DEV_AUXDATA("arm,primecell", V2M_MMCI, "mb:mmci", &v2m_mmci_data), + /* RS1 memory map */ + OF_DEV_AUXDATA("arm,vexpress-flash", 0x08000000, "physmap-flash", + &v2m_flash_data), + OF_DEV_AUXDATA("arm,primecell", 0x1c050000, "mb:mmci", &v2m_mmci_data), {} }; static void __init v2m_dt_init(void) { l2x0_of_init(0x00400000, 0xfe0fffff); - of_platform_populate(NULL, v2m_dt_bus_match, NULL, NULL); - pm_power_off = vexpress_power_off; + of_platform_populate(NULL, of_default_bus_match_table, + v2m_dt_auxdata_lookup, NULL); + pm_power_off = v2m_power_off; } -static const char * const v2m_dt_match[] __initconst = { +const static char *v2m_dt_match[] __initconst = { "arm,vexpress", "xen,xenvm", NULL, @@ -501,5 +672,5 @@ DT_MACHINE_START(VEXPRESS_DT, "ARM-Versatile Express") .timer = &v2m_dt_timer, .init_machine = v2m_dt_init, .handle_irq = gic_handle_irq, - .restart = vexpress_restart, + .restart = v2m_restart, MACHINE_END diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 637bcdf8ce77..acab3ef8a310 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1070,9 +1070,3 @@ config MCP_UCB1200_TS depends on MCP_UCB1200 && INPUT endmenu - -config VEXPRESS_CONFIG - bool - help - Platform configuration infrastructure for the ARM Ltd. - Versatile Express. diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 296817c6c06f..d8ccb630ddb0 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -138,4 +138,3 @@ obj-$(CONFIG_MFD_RC5T583) += rc5t583.o rc5t583-irq.o obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o obj-$(CONFIG_MFD_SYSCON) += syscon.o obj-$(CONFIG_MFD_LM3533) += lm3533-core.o lm3533-ctrlbank.o -obj-$(CONFIG_VEXPRESS_CONFIG) += vexpress-config.o vexpress-sysreg.o diff --git a/drivers/mfd/vexpress-config.c b/drivers/mfd/vexpress-config.c deleted file mode 100644 index fae15d880758..000000000000 --- a/drivers/mfd/vexpress-config.c +++ /dev/null @@ -1,277 +0,0 @@ -/* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * Copyright (C) 2012 ARM Limited - */ - -#define pr_fmt(fmt) "vexpress-config: " fmt - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - - -#define VEXPRESS_CONFIG_MAX_BRIDGES 2 - -struct vexpress_config_bridge { - struct device_node *node; - struct vexpress_config_bridge_info *info; - struct list_head transactions; - spinlock_t transactions_lock; -} vexpress_config_bridges[VEXPRESS_CONFIG_MAX_BRIDGES]; - -static DECLARE_BITMAP(vexpress_config_bridges_map, - ARRAY_SIZE(vexpress_config_bridges)); -static DEFINE_MUTEX(vexpress_config_bridges_mutex); - -struct vexpress_config_bridge *vexpress_config_bridge_register( - struct device_node *node, - struct vexpress_config_bridge_info *info) -{ - struct vexpress_config_bridge *bridge; - int i; - - pr_debug("Registering bridge '%s'\n", info->name); - - mutex_lock(&vexpress_config_bridges_mutex); - i = find_first_zero_bit(vexpress_config_bridges_map, - ARRAY_SIZE(vexpress_config_bridges)); - if (i >= ARRAY_SIZE(vexpress_config_bridges)) { - pr_err("Can't register more bridges!\n"); - mutex_unlock(&vexpress_config_bridges_mutex); - return NULL; - } - __set_bit(i, vexpress_config_bridges_map); - bridge = &vexpress_config_bridges[i]; - - bridge->node = node; - bridge->info = info; - INIT_LIST_HEAD(&bridge->transactions); - spin_lock_init(&bridge->transactions_lock); - - mutex_unlock(&vexpress_config_bridges_mutex); - - return bridge; -} - -void vexpress_config_bridge_unregister(struct vexpress_config_bridge *bridge) -{ - struct vexpress_config_bridge __bridge = *bridge; - int i; - - mutex_lock(&vexpress_config_bridges_mutex); - for (i = 0; i < ARRAY_SIZE(vexpress_config_bridges); i++) - if (&vexpress_config_bridges[i] == bridge) - __clear_bit(i, vexpress_config_bridges_map); - mutex_unlock(&vexpress_config_bridges_mutex); - - WARN_ON(!list_empty(&__bridge.transactions)); - while (!list_empty(&__bridge.transactions)) - cpu_relax(); -} - - -struct vexpress_config_func { - struct vexpress_config_bridge *bridge; - void *func; -}; - -struct vexpress_config_func *__vexpress_config_func_get(struct device *dev, - struct device_node *node) -{ - struct device_node *bridge_node; - struct vexpress_config_func *func; - int i; - - if (WARN_ON(dev && node && dev->of_node != node)) - return NULL; - if (dev && !node) - node = dev->of_node; - - func = kzalloc(sizeof(*func), GFP_KERNEL); - if (!func) - return NULL; - - bridge_node = of_node_get(node); - while (bridge_node) { - const __be32 *prop = of_get_property(bridge_node, - "arm,vexpress,config-bridge", NULL); - - if (prop) { - bridge_node = of_find_node_by_phandle( - be32_to_cpup(prop)); - break; - } - - bridge_node = of_get_next_parent(bridge_node); - } - - mutex_lock(&vexpress_config_bridges_mutex); - for (i = 0; i < ARRAY_SIZE(vexpress_config_bridges); i++) { - struct vexpress_config_bridge *bridge = - &vexpress_config_bridges[i]; - - if (test_bit(i, vexpress_config_bridges_map) && - bridge->node == bridge_node) { - func->bridge = bridge; - func->func = bridge->info->func_get(dev, node); - break; - } - } - mutex_unlock(&vexpress_config_bridges_mutex); - - if (!func->func) { - of_node_put(node); - kfree(func); - return NULL; - } - - return func; -} - -void vexpress_config_func_put(struct vexpress_config_func *func) -{ - func->bridge->info->func_put(func->func); - of_node_put(func->bridge->node); - kfree(func); -} - - -struct vexpress_config_trans { - struct vexpress_config_func *func; - int offset; - bool write; - u32 *data; - int status; - struct completion completion; - struct list_head list; -}; - -static void vexpress_config_dump_trans(const char *what, - struct vexpress_config_trans *trans) -{ - pr_debug("%s %s trans %p func 0x%p offset %d data 0x%x status %d\n", - what, trans->write ? "write" : "read", trans, - trans->func->func, trans->offset, - trans->data ? *trans->data : 0, trans->status); -} - -static int vexpress_config_schedule(struct vexpress_config_trans *trans) -{ - int status; - struct vexpress_config_bridge *bridge = trans->func->bridge; - unsigned long flags; - - init_completion(&trans->completion); - trans->status = -EFAULT; - - spin_lock_irqsave(&bridge->transactions_lock, flags); - - vexpress_config_dump_trans("Executing", trans); - - if (list_empty(&bridge->transactions)) - status = bridge->info->func_exec(trans->func->func, - trans->offset, trans->write, trans->data); - else - status = VEXPRESS_CONFIG_STATUS_WAIT; - - switch (status) { - case VEXPRESS_CONFIG_STATUS_DONE: - vexpress_config_dump_trans("Finished", trans); - trans->status = status; - break; - case VEXPRESS_CONFIG_STATUS_WAIT: - list_add_tail(&trans->list, &bridge->transactions); - break; - } - - spin_unlock_irqrestore(&bridge->transactions_lock, flags); - - return status; -} - -void vexpress_config_complete(struct vexpress_config_bridge *bridge, - int status) -{ - struct vexpress_config_trans *trans; - unsigned long flags; - - spin_lock_irqsave(&bridge->transactions_lock, flags); - - trans = list_first_entry(&bridge->transactions, - struct vexpress_config_trans, list); - vexpress_config_dump_trans("Completed", trans); - - trans->status = status; - list_del(&trans->list); - - if (!list_empty(&bridge->transactions)) { - vexpress_config_dump_trans("Pending", trans); - - bridge->info->func_exec(trans->func->func, trans->offset, - trans->write, trans->data); - } - spin_unlock_irqrestore(&bridge->transactions_lock, flags); - - complete(&trans->completion); -} - -int vexpress_config_wait(struct vexpress_config_trans *trans) -{ - wait_for_completion(&trans->completion); - - return trans->status; -} - - -int vexpress_config_read(struct vexpress_config_func *func, int offset, - u32 *data) -{ - struct vexpress_config_trans trans = { - .func = func, - .offset = offset, - .write = false, - .data = data, - .status = 0, - }; - int status = vexpress_config_schedule(&trans); - - if (status == VEXPRESS_CONFIG_STATUS_WAIT) - status = vexpress_config_wait(&trans); - - return status; -} -EXPORT_SYMBOL(vexpress_config_read); - -int vexpress_config_write(struct vexpress_config_func *func, int offset, - u32 data) -{ - struct vexpress_config_trans trans = { - .func = func, - .offset = offset, - .write = true, - .data = &data, - .status = 0, - }; - int status = vexpress_config_schedule(&trans); - - if (status == VEXPRESS_CONFIG_STATUS_WAIT) - status = vexpress_config_wait(&trans); - - return status; -} -EXPORT_SYMBOL(vexpress_config_write); diff --git a/drivers/mfd/vexpress-sysreg.c b/drivers/mfd/vexpress-sysreg.c deleted file mode 100644 index 059d6b17b14a..000000000000 --- a/drivers/mfd/vexpress-sysreg.c +++ /dev/null @@ -1,552 +0,0 @@ -/* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * Copyright (C) 2012 ARM Limited - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define SYS_ID 0x000 -#define SYS_SW 0x004 -#define SYS_LED 0x008 -#define SYS_100HZ 0x024 -#define SYS_FLAGS 0x030 -#define SYS_FLAGSSET 0x030 -#define SYS_FLAGSCLR 0x034 -#define SYS_NVFLAGS 0x038 -#define SYS_NVFLAGSSET 0x038 -#define SYS_NVFLAGSCLR 0x03c -#define SYS_MCI 0x048 -#define SYS_FLASH 0x04c -#define SYS_CFGSW 0x058 -#define SYS_24MHZ 0x05c -#define SYS_MISC 0x060 -#define SYS_DMA 0x064 -#define SYS_PROCID0 0x084 -#define SYS_PROCID1 0x088 -#define SYS_CFGDATA 0x0a0 -#define SYS_CFGCTRL 0x0a4 -#define SYS_CFGSTAT 0x0a8 - -#define SYS_HBI_MASK 0xfff -#define SYS_ID_HBI_SHIFT 16 -#define SYS_PROCIDx_HBI_SHIFT 0 - -#define SYS_MCI_CARDIN (1 << 0) -#define SYS_MCI_WPROT (1 << 1) - -#define SYS_FLASH_WPn (1 << 0) - -#define SYS_MISC_MASTERSITE (1 << 14) - -#define SYS_CFGCTRL_START (1 << 31) -#define SYS_CFGCTRL_WRITE (1 << 30) -#define SYS_CFGCTRL_DCC(n) (((n) & 0xf) << 26) -#define SYS_CFGCTRL_FUNC(n) (((n) & 0x3f) << 20) -#define SYS_CFGCTRL_SITE(n) (((n) & 0x3) << 16) -#define SYS_CFGCTRL_POSITION(n) (((n) & 0xf) << 12) -#define SYS_CFGCTRL_DEVICE(n) (((n) & 0xfff) << 0) - -#define SYS_CFGSTAT_ERR (1 << 1) -#define SYS_CFGSTAT_COMPLETE (1 << 0) - - -static void __iomem *vexpress_sysreg_base; -static struct device *vexpress_sysreg_dev; -static int vexpress_master_site; - - -void vexpress_flags_set(u32 data) -{ - writel(~0, vexpress_sysreg_base + SYS_FLAGSCLR); - writel(data, vexpress_sysreg_base + SYS_FLAGSSET); -} - -u32 vexpress_get_procid(int site) -{ - if (site == VEXPRESS_SITE_MASTER) - site = vexpress_master_site; - - return readl(vexpress_sysreg_base + (site == VEXPRESS_SITE_DB1 ? - SYS_PROCID0 : SYS_PROCID1)); -} - -u32 vexpress_get_hbi(int site) -{ - u32 id; - - switch (site) { - case VEXPRESS_SITE_MB: - id = readl(vexpress_sysreg_base + SYS_ID); - return (id >> SYS_ID_HBI_SHIFT) & SYS_HBI_MASK; - case VEXPRESS_SITE_MASTER: - case VEXPRESS_SITE_DB1: - case VEXPRESS_SITE_DB2: - id = vexpress_get_procid(site); - return (id >> SYS_PROCIDx_HBI_SHIFT) & SYS_HBI_MASK; - } - - return ~0; -} - -void __iomem *vexpress_get_24mhz_clock_base(void) -{ - return vexpress_sysreg_base + SYS_24MHZ; -} - - -static void vexpress_sysreg_find_prop(struct device_node *node, - const char *name, u32 *val) -{ - of_node_get(node); - while (node) { - if (of_property_read_u32(node, name, val) == 0) { - of_node_put(node); - return; - } - node = of_get_next_parent(node); - } -} - -unsigned __vexpress_get_site(struct device *dev, struct device_node *node) -{ - u32 site = 0; - - WARN_ON(dev && node && dev->of_node != node); - if (dev && !node) - node = dev->of_node; - - if (node) { - vexpress_sysreg_find_prop(node, "arm,vexpress,site", &site); - } else if (dev && dev->bus == &platform_bus_type) { - struct platform_device *pdev = to_platform_device(dev); - - if (pdev->num_resources == 1 && - pdev->resource[0].flags == IORESOURCE_BUS) - site = pdev->resource[0].start; - } else if (dev && strncmp(dev_name(dev), "ct:", 3) == 0) { - site = VEXPRESS_SITE_MASTER; - } - - if (site == VEXPRESS_SITE_MASTER) - site = vexpress_master_site; - - return site; -} - - -struct vexpress_sysreg_config_func { - u32 template; - u32 device; -}; - -static struct vexpress_config_bridge *vexpress_sysreg_config_bridge; -static struct timer_list vexpress_sysreg_config_timer; -static u32 *vexpress_sysreg_config_data; -static int vexpress_sysreg_config_tries; - -static void *vexpress_sysreg_config_func_get(struct device *dev, - struct device_node *node) -{ - struct vexpress_sysreg_config_func *config_func; - u32 site; - u32 position = 0; - u32 dcc = 0; - u32 func_device[2]; - int err = -EFAULT; - - if (node) { - of_node_get(node); - vexpress_sysreg_find_prop(node, "arm,vexpress,site", &site); - vexpress_sysreg_find_prop(node, "arm,vexpress,position", - &position); - vexpress_sysreg_find_prop(node, "arm,vexpress,dcc", &dcc); - err = of_property_read_u32_array(node, - "arm,vexpress-sysreg,func", func_device, - ARRAY_SIZE(func_device)); - of_node_put(node); - } else if (dev && dev->bus == &platform_bus_type) { - struct platform_device *pdev = to_platform_device(dev); - - if (pdev->num_resources == 1 && - pdev->resource[0].flags == IORESOURCE_BUS) { - site = pdev->resource[0].start; - func_device[0] = pdev->resource[0].end; - func_device[1] = pdev->id; - err = 0; - } - } - if (err) - return NULL; - - config_func = kzalloc(sizeof(*config_func), GFP_KERNEL); - if (!config_func) - return NULL; - - config_func->template = SYS_CFGCTRL_DCC(dcc); - config_func->template |= SYS_CFGCTRL_FUNC(func_device[0]); - config_func->template |= SYS_CFGCTRL_SITE(site == VEXPRESS_SITE_MASTER ? - vexpress_master_site : site); - config_func->template |= SYS_CFGCTRL_POSITION(position); - config_func->device |= func_device[1]; - - dev_dbg(vexpress_sysreg_dev, "func 0x%p = 0x%x, %d\n", config_func, - config_func->template, config_func->device); - - return config_func; -} - -static void vexpress_sysreg_config_func_put(void *func) -{ - kfree(func); -} - -static int vexpress_sysreg_config_func_exec(void *func, int offset, - bool write, u32 *data) -{ - int status; - struct vexpress_sysreg_config_func *config_func = func; - u32 command; - - if (WARN_ON(!vexpress_sysreg_base)) - return -ENOENT; - - command = readl(vexpress_sysreg_base + SYS_CFGCTRL); - if (WARN_ON(command & SYS_CFGCTRL_START)) - return -EBUSY; - - command = SYS_CFGCTRL_START; - command |= write ? SYS_CFGCTRL_WRITE : 0; - command |= config_func->template; - command |= SYS_CFGCTRL_DEVICE(config_func->device + offset); - - /* Use a canary for reads */ - if (!write) - *data = 0xdeadbeef; - - dev_dbg(vexpress_sysreg_dev, "command %x, data %x\n", - command, *data); - writel(*data, vexpress_sysreg_base + SYS_CFGDATA); - writel(0, vexpress_sysreg_base + SYS_CFGSTAT); - writel(command, vexpress_sysreg_base + SYS_CFGCTRL); - mb(); - - if (vexpress_sysreg_dev) { - /* Schedule completion check */ - if (!write) - vexpress_sysreg_config_data = data; - vexpress_sysreg_config_tries = 100; - mod_timer(&vexpress_sysreg_config_timer, - jiffies + usecs_to_jiffies(100)); - status = VEXPRESS_CONFIG_STATUS_WAIT; - } else { - /* Early execution, no timer available, have to spin */ - u32 cfgstat; - - do { - cpu_relax(); - cfgstat = readl(vexpress_sysreg_base + SYS_CFGSTAT); - } while (!cfgstat); - - if (!write && (cfgstat & SYS_CFGSTAT_COMPLETE)) - *data = readl(vexpress_sysreg_base + SYS_CFGDATA); - status = VEXPRESS_CONFIG_STATUS_DONE; - - if (cfgstat & SYS_CFGSTAT_ERR) - status = -EINVAL; - } - - return status; -} - -struct vexpress_config_bridge_info vexpress_sysreg_config_bridge_info = { - .name = "vexpress-sysreg", - .func_get = vexpress_sysreg_config_func_get, - .func_put = vexpress_sysreg_config_func_put, - .func_exec = vexpress_sysreg_config_func_exec, -}; - -static void vexpress_sysreg_config_complete(unsigned long data) -{ - int status = VEXPRESS_CONFIG_STATUS_DONE; - u32 cfgstat = readl(vexpress_sysreg_base + SYS_CFGSTAT); - - if (cfgstat & SYS_CFGSTAT_ERR) - status = -EINVAL; - if (!vexpress_sysreg_config_tries--) - status = -ETIMEDOUT; - - if (status < 0) { - dev_err(vexpress_sysreg_dev, "error %d\n", status); - } else if (!(cfgstat & SYS_CFGSTAT_COMPLETE)) { - mod_timer(&vexpress_sysreg_config_timer, - jiffies + usecs_to_jiffies(50)); - return; - } - - if (vexpress_sysreg_config_data) { - *vexpress_sysreg_config_data = readl(vexpress_sysreg_base + - SYS_CFGDATA); - dev_dbg(vexpress_sysreg_dev, "read data %x\n", - *vexpress_sysreg_config_data); - vexpress_sysreg_config_data = NULL; - } - - vexpress_config_complete(vexpress_sysreg_config_bridge, status); -} - - -void __init vexpress_sysreg_early_init(void __iomem *base) -{ - struct device_node *node = of_find_compatible_node(NULL, NULL, - "arm,vexpress-sysreg"); - - if (node) - base = of_iomap(node, 0); - - if (WARN_ON(!base)) - return; - - vexpress_sysreg_base = base; - - if (readl(vexpress_sysreg_base + SYS_MISC) & SYS_MISC_MASTERSITE) - vexpress_master_site = VEXPRESS_SITE_DB2; - else - vexpress_master_site = VEXPRESS_SITE_DB1; - - vexpress_sysreg_config_bridge = vexpress_config_bridge_register( - node, &vexpress_sysreg_config_bridge_info); - WARN_ON(!vexpress_sysreg_config_bridge); -} - -void __init vexpress_sysreg_of_early_init(void) -{ - vexpress_sysreg_early_init(NULL); -} - - -static struct vexpress_sysreg_gpio { - unsigned long reg; - u32 value; -} vexpress_sysreg_gpios[] = { - [VEXPRESS_GPIO_MMC_CARDIN] = { - .reg = SYS_MCI, - .value = SYS_MCI_CARDIN, - }, - [VEXPRESS_GPIO_MMC_WPROT] = { - .reg = SYS_MCI, - .value = SYS_MCI_WPROT, - }, - [VEXPRESS_GPIO_FLASH_WPn] = { - .reg = SYS_FLASH, - .value = SYS_FLASH_WPn, - }, -}; - -static int vexpress_sysreg_gpio_direction_input(struct gpio_chip *chip, - unsigned offset) -{ - return 0; -} - -static int vexpress_sysreg_gpio_direction_output(struct gpio_chip *chip, - unsigned offset, int value) -{ - return 0; -} - -static int vexpress_sysreg_gpio_get(struct gpio_chip *chip, - unsigned offset) -{ - struct vexpress_sysreg_gpio *gpio = &vexpress_sysreg_gpios[offset]; - u32 reg_value = readl(vexpress_sysreg_base + gpio->reg); - - return !!(reg_value & gpio->value); -} - -static void vexpress_sysreg_gpio_set(struct gpio_chip *chip, - unsigned offset, int value) -{ - struct vexpress_sysreg_gpio *gpio = &vexpress_sysreg_gpios[offset]; - u32 reg_value = readl(vexpress_sysreg_base + gpio->reg); - - if (value) - reg_value |= gpio->value; - else - reg_value &= ~gpio->value; - - writel(reg_value, vexpress_sysreg_base + gpio->reg); -} - -static struct gpio_chip vexpress_sysreg_gpio_chip = { - .label = "vexpress-sysreg", - .direction_input = vexpress_sysreg_gpio_direction_input, - .direction_output = vexpress_sysreg_gpio_direction_output, - .get = vexpress_sysreg_gpio_get, - .set = vexpress_sysreg_gpio_set, - .ngpio = ARRAY_SIZE(vexpress_sysreg_gpios), - .base = 0, -}; - - -static ssize_t vexpress_sysreg_sys_id_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "0x%08x\n", readl(vexpress_sysreg_base + SYS_ID)); -} - -DEVICE_ATTR(sys_id, S_IRUGO, vexpress_sysreg_sys_id_show, NULL); - -static int __devinit vexpress_sysreg_probe(struct platform_device *pdev) -{ - int err; - struct resource *res = platform_get_resource(pdev, - IORESOURCE_MEM, 0); - - if (!devm_request_mem_region(&pdev->dev, res->start, - resource_size(res), pdev->name)) { - dev_err(&pdev->dev, "Failed to request memory region!\n"); - return -EBUSY; - } - - if (!vexpress_sysreg_base) - vexpress_sysreg_base = devm_ioremap(&pdev->dev, res->start, - resource_size(res)); - - if (!vexpress_sysreg_base) { - dev_err(&pdev->dev, "Failed to obtain base address!\n"); - return -EFAULT; - } - - setup_timer(&vexpress_sysreg_config_timer, - vexpress_sysreg_config_complete, 0); - - vexpress_sysreg_gpio_chip.dev = &pdev->dev; - err = gpiochip_add(&vexpress_sysreg_gpio_chip); - if (err) { - vexpress_config_bridge_unregister( - vexpress_sysreg_config_bridge); - dev_err(&pdev->dev, "Failed to register GPIO chip! (%d)\n", - err); - return err; - } - - vexpress_sysreg_dev = &pdev->dev; - - device_create_file(vexpress_sysreg_dev, &dev_attr_sys_id); - - return 0; -} - -static const struct of_device_id vexpress_sysreg_match[] = { - { .compatible = "arm,vexpress-sysreg", }, - {}, -}; - -static struct platform_driver vexpress_sysreg_driver = { - .driver = { - .name = "vexpress-sysreg", - .of_match_table = vexpress_sysreg_match, - }, - .probe = vexpress_sysreg_probe, -}; - -static int __init vexpress_sysreg_init(void) -{ - return platform_driver_register(&vexpress_sysreg_driver); -} -core_initcall(vexpress_sysreg_init); - - -#if defined(CONFIG_LEDS_CLASS) - -struct vexpress_sysreg_led { - u32 mask; - struct led_classdev cdev; -} vexpress_sysreg_leds[] = { - { .mask = 1 << 0, .cdev.name = "v2m:green:user1", - .cdev.default_trigger = "heartbeat", }, - { .mask = 1 << 1, .cdev.name = "v2m:green:user2", - .cdev.default_trigger = "mmc0", }, - { .mask = 1 << 2, .cdev.name = "v2m:green:user3", - .cdev.default_trigger = "cpu0", }, - { .mask = 1 << 3, .cdev.name = "v2m:green:user4", - .cdev.default_trigger = "cpu1", }, - { .mask = 1 << 4, .cdev.name = "v2m:green:user5", - .cdev.default_trigger = "cpu2", }, - { .mask = 1 << 5, .cdev.name = "v2m:green:user6", - .cdev.default_trigger = "cpu3", }, - { .mask = 1 << 6, .cdev.name = "v2m:green:user7", - .cdev.default_trigger = "cpu4", }, - { .mask = 1 << 7, .cdev.name = "v2m:green:user8", - .cdev.default_trigger = "cpu5", }, -}; - -static DEFINE_SPINLOCK(vexpress_sysreg_leds_lock); - -static void vexpress_sysreg_led_brightness_set(struct led_classdev *cdev, - enum led_brightness brightness) -{ - struct vexpress_sysreg_led *led = container_of(cdev, - struct vexpress_sysreg_led, cdev); - unsigned long flags; - u32 val; - - spin_lock_irqsave(&vexpress_sysreg_leds_lock, flags); - - val = readl(vexpress_sysreg_base + SYS_LED); - if (brightness == LED_OFF) - val &= ~led->mask; - else - val |= led->mask; - writel(val, vexpress_sysreg_base + SYS_LED); - - spin_unlock_irqrestore(&vexpress_sysreg_leds_lock, flags); -} - -static int __init vexpress_sysreg_init_leds(void) -{ - struct vexpress_sysreg_led *led; - int i; - - /* Clear all user LEDs */ - writel(0, vexpress_sysreg_base + SYS_LED); - - for (i = 0, led = vexpress_sysreg_leds; - i < ARRAY_SIZE(vexpress_sysreg_leds); i++, led++) { - int err; - - led->cdev.brightness_set = vexpress_sysreg_led_brightness_set; - err = led_classdev_register(vexpress_sysreg_dev, &led->cdev); - if (err) { - dev_err(vexpress_sysreg_dev, - "Failed to register LED %d! (%d)\n", - i, err); - while (led--, i--) - led_classdev_unregister(&led->cdev); - return err; - } - } - - return 0; -} -device_initcall(vexpress_sysreg_init_leds); - -#endif diff --git a/include/linux/vexpress.h b/include/linux/vexpress.h deleted file mode 100644 index c52215ff4245..000000000000 --- a/include/linux/vexpress.h +++ /dev/null @@ -1,121 +0,0 @@ -/* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * Copyright (C) 2012 ARM Limited - */ - -#ifndef _LINUX_VEXPRESS_H -#define _LINUX_VEXPRESS_H - -#include - -#define VEXPRESS_SITE_MB 0 -#define VEXPRESS_SITE_DB1 1 -#define VEXPRESS_SITE_DB2 2 -#define VEXPRESS_SITE_MASTER 0xf - -#define VEXPRESS_CONFIG_STATUS_DONE 0 -#define VEXPRESS_CONFIG_STATUS_WAIT 1 - -#define VEXPRESS_GPIO_MMC_CARDIN 0 -#define VEXPRESS_GPIO_MMC_WPROT 1 -#define VEXPRESS_GPIO_FLASH_WPn 2 - -#define VEXPRESS_RES_FUNC(_site, _func) \ -{ \ - .start = (_site), \ - .end = (_func), \ - .flags = IORESOURCE_BUS, \ -} - -/* Config bridge API */ - -/** - * struct vexpress_config_bridge_info - description of the platform - * configuration infrastructure bridge. - * - * @name: Bridge name - * - * @func_get: Obtains pointer to a configuration function for a given - * device or a Device Tree node, to be used with @func_put - * and @func_exec. The node pointer should take precedence - * over device pointer when both are passed. - * - * @func_put: Tells the bridge that the function will not be used any - * more, so all allocated resources can be released. - * - * @func_exec: Executes a configuration function read or write operation. - * The offset selects a 32 bit word of the value accessed. - * Must return VEXPRESS_CONFIG_STATUS_DONE when operation - * is finished immediately, VEXPRESS_CONFIG_STATUS_WAIT when - * will be completed in some time or negative value in case - * of error. - */ -struct vexpress_config_bridge_info { - const char *name; - void *(*func_get)(struct device *dev, struct device_node *node); - void (*func_put)(void *func); - int (*func_exec)(void *func, int offset, bool write, u32 *data); -}; - -struct vexpress_config_bridge; - -struct vexpress_config_bridge *vexpress_config_bridge_register( - struct device_node *node, - struct vexpress_config_bridge_info *info); -void vexpress_config_bridge_unregister(struct vexpress_config_bridge *bridge); - -void vexpress_config_complete(struct vexpress_config_bridge *bridge, - int status); - -/* Config function API */ - -struct vexpress_config_func; - -struct vexpress_config_func *__vexpress_config_func_get(struct device *dev, - struct device_node *node); -#define vexpress_config_func_get_by_dev(dev) \ - __vexpress_config_func_get(dev, NULL) -#define vexpress_config_func_get_by_node(node) \ - __vexpress_config_func_get(NULL, node) -void vexpress_config_func_put(struct vexpress_config_func *func); - -/* Both may sleep! */ -int vexpress_config_read(struct vexpress_config_func *func, int offset, - u32 *data); -int vexpress_config_write(struct vexpress_config_func *func, int offset, - u32 data); - -/* Platform control */ - -u32 vexpress_get_procid(int site); -u32 vexpress_get_hbi(int site); -void *vexpress_get_24mhz_clock_base(void); -void vexpress_flags_set(u32 data); - -#define vexpress_get_site_by_node(node) __vexpress_get_site(NULL, node) -#define vexpress_get_site_by_dev(dev) __vexpress_get_site(dev, NULL) -unsigned __vexpress_get_site(struct device *dev, struct device_node *node); - -void vexpress_sysreg_early_init(void __iomem *base); -void vexpress_sysreg_of_early_init(void); - -void vexpress_power_off(void); -void vexpress_restart(char str, const char *cmd); - -/* Clocks */ - -struct clk *vexpress_osc_setup(struct device *dev); -void vexpress_osc_of_setup(struct device_node *node); - -void vexpress_clk_init(void __iomem *sp810_base); -void vexpress_clk_of_init(void); - -#endif -- 2.39.5