From 744fdc8dc0e22cc5b61ee1bcde9375f188daa330 Mon Sep 17 00:00:00 2001 From: Bastian Hecht Date: Wed, 17 Apr 2013 12:34:05 +0200 Subject: [PATCH] ARM: shmobile: r8a7740: Prepare for reference DT setup We need three steps to prepare for the new Armadillo reference DT board code: - Split the device list into r8a7740_early_devices used by the old platform data setup (board-armadillo.c) and r8a7740_devices_dt used by both setup variants. - Introduce new r8a7740_init_delay() to be more flexible about calling shmobile_setup_delay(). - For the generic r8a7740 support, we switch to device tree setup for the GIC, the irqpin devices and the I2C controllers. This is slightly similar to commit 3b00f9342623a5ebc "ARM: shmobile: sh73a0: Do not use early devices with DT reference" Signed-off-by: Bastian Hecht Signed-off-by: Simon Horman --- arch/arm/boot/dts/r8a7740.dtsi | 117 ++++++++++++++++++ arch/arm/mach-shmobile/include/mach/r8a7740.h | 2 + arch/arm/mach-shmobile/setup-r8a7740.c | 54 ++++---- 3 files changed, 148 insertions(+), 25 deletions(-) diff --git a/arch/arm/boot/dts/r8a7740.dtsi b/arch/arm/boot/dts/r8a7740.dtsi index 798fa35c0005..25dc9305b6be 100644 --- a/arch/arm/boot/dts/r8a7740.dtsi +++ b/arch/arm/boot/dts/r8a7740.dtsi @@ -18,4 +18,121 @@ compatible = "arm,cortex-a9"; }; }; + + gic: interrupt-controller@c2800000 { + compatible = "arm,cortex-a9-gic"; + #interrupt-cells = <3>; + #address-cells = <1>; + interrupt-controller; + reg = <0xc2800000 0x1000>, + <0xc2000000 0x1000>; + }; + + /* irqpin0: IRQ0 - IRQ7 */ + irqpin0: irqpin@e6900000 { + compatible = "renesas,intc-irqpin"; + #interrupt-cells = <2>; + interrupt-controller; + reg = <0xe6900000 4>, + <0xe6900010 4>, + <0xe6900020 1>, + <0xe6900040 1>, + <0xe6900060 1>; + interrupt-parent = <&gic>; + interrupts = <0 149 0x4 + 0 149 0x4 + 0 149 0x4 + 0 149 0x4 + 0 149 0x4 + 0 149 0x4 + 0 149 0x4 + 0 149 0x4>; + }; + + /* irqpin1: IRQ8 - IRQ15 */ + irqpin1: irqpin@e6900004 { + compatible = "renesas,intc-irqpin"; + #interrupt-cells = <2>; + interrupt-controller; + reg = <0xe6900004 4>, + <0xe6900014 4>, + <0xe6900024 1>, + <0xe6900044 1>, + <0xe6900064 1>; + interrupt-parent = <&gic>; + interrupts = <0 149 0x4 + 0 149 0x4 + 0 149 0x4 + 0 149 0x4 + 0 149 0x4 + 0 149 0x4 + 0 149 0x4 + 0 149 0x4>; + }; + + /* irqpin2: IRQ16 - IRQ23 */ + irqpin2: irqpin@e6900008 { + compatible = "renesas,intc-irqpin"; + #interrupt-cells = <2>; + interrupt-controller; + reg = <0xe6900008 4>, + <0xe6900018 4>, + <0xe6900028 1>, + <0xe6900048 1>, + <0xe6900068 1>; + interrupt-parent = <&gic>; + interrupts = <0 149 0x4 + 0 149 0x4 + 0 149 0x4 + 0 149 0x4 + 0 149 0x4 + 0 149 0x4 + 0 149 0x4 + 0 149 0x4>; + }; + + /* irqpin3: IRQ24 - IRQ31 */ + irqpin3: irqpin@e690000c { + compatible = "renesas,intc-irqpin"; + #interrupt-cells = <2>; + interrupt-controller; + reg = <0xe690000c 4>, + <0xe690001c 4>, + <0xe690002c 1>, + <0xe690004c 1>, + <0xe690006c 1>; + interrupt-parent = <&gic>; + interrupts = <0 149 0x4 + 0 149 0x4 + 0 149 0x4 + 0 149 0x4 + 0 149 0x4 + 0 149 0x4 + 0 149 0x4 + 0 149 0x4>; + }; + + i2c0: i2c@fff20000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "renesas,rmobile-iic"; + reg = <0xfff20000 0x425>; + interrupt-parent = <&gic>; + interrupts = <0 201 0x4 + 0 202 0x4 + 0 203 0x4 + 0 204 0x4>; + }; + + i2c1: i2c@e6c20000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "renesas,rmobile-iic"; + reg = <0xe6c20000 0x425>; + interrupt-parent = <&gic>; + interrupts = <0 70 0x4 + 0 71 0x4 + 0 72 0x4 + 0 73 0x4>; + }; }; diff --git a/arch/arm/mach-shmobile/include/mach/r8a7740.h b/arch/arm/mach-shmobile/include/mach/r8a7740.h index 19c0423108f5..1cf6869b656a 100644 --- a/arch/arm/mach-shmobile/include/mach/r8a7740.h +++ b/arch/arm/mach-shmobile/include/mach/r8a7740.h @@ -533,11 +533,13 @@ enum { }; extern void r8a7740_meram_workaround(void); +extern void r8a7740_init_delay(void); extern void r8a7740_init_irq(void); extern void r8a7740_init_irq_of(void); extern void r8a7740_map_io(void); extern void r8a7740_add_early_devices(void); extern void r8a7740_add_standard_devices(void); +extern void r8a7740_add_standard_devices_dt(void); extern void r8a7740_clock_init(u8 md_ck); extern void r8a7740_pinmux_init(void); extern void r8a7740_pm_init(void); diff --git a/arch/arm/mach-shmobile/setup-r8a7740.c b/arch/arm/mach-shmobile/setup-r8a7740.c index 326a4ab0bd5f..9284e6fdb0c8 100644 --- a/arch/arm/mach-shmobile/setup-r8a7740.c +++ b/arch/arm/mach-shmobile/setup-r8a7740.c @@ -531,11 +531,7 @@ static struct platform_device ipmmu_device = { .num_resources = ARRAY_SIZE(ipmmu_resources), }; -static struct platform_device *r8a7740_early_devices[] __initdata = { - &irqpin0_device, - &irqpin1_device, - &irqpin2_device, - &irqpin3_device, +static struct platform_device *r8a7740_devices_dt[] __initdata = { &scif0_device, &scif1_device, &scif2_device, @@ -546,6 +542,13 @@ static struct platform_device *r8a7740_early_devices[] __initdata = { &scif7_device, &scifb_device, &cmt10_device, +}; + +static struct platform_device *r8a7740_early_devices[] __initdata = { + &irqpin0_device, + &irqpin1_device, + &irqpin2_device, + &irqpin3_device, &tmu00_device, &tmu01_device, &tmu02_device, @@ -965,6 +968,8 @@ void __init r8a7740_add_standard_devices(void) /* add devices */ platform_add_devices(r8a7740_early_devices, ARRAY_SIZE(r8a7740_early_devices)); + platform_add_devices(r8a7740_devices_dt, + ARRAY_SIZE(r8a7740_devices_dt)); platform_add_devices(r8a7740_late_devices, ARRAY_SIZE(r8a7740_late_devices)); @@ -986,6 +991,8 @@ void __init r8a7740_add_early_devices(void) { early_platform_add_devices(r8a7740_early_devices, ARRAY_SIZE(r8a7740_early_devices)); + early_platform_add_devices(r8a7740_devices_dt, + ARRAY_SIZE(r8a7740_devices_dt)); /* setup early console here as well */ shmobile_setup_console(); @@ -993,33 +1000,29 @@ void __init r8a7740_add_early_devices(void) #ifdef CONFIG_USE_OF -void __init r8a7740_add_early_devices_dt(void) -{ - shmobile_setup_delay(800, 1, 3); /* Cortex-A9 @ 800MHz */ - - early_platform_add_devices(r8a7740_early_devices, - ARRAY_SIZE(r8a7740_early_devices)); - - /* setup early console here as well */ - shmobile_setup_console(); -} - static const struct of_dev_auxdata r8a7740_auxdata_lookup[] __initconst = { { } }; void __init r8a7740_add_standard_devices_dt(void) { - /* clocks are setup late during boot in the case of DT */ - r8a7740_clock_init(0); - - platform_add_devices(r8a7740_early_devices, - ARRAY_SIZE(r8a7740_early_devices)); - + platform_add_devices(r8a7740_devices_dt, + ARRAY_SIZE(r8a7740_devices_dt)); of_platform_populate(NULL, of_default_bus_match_table, r8a7740_auxdata_lookup, NULL); } +void __init r8a7740_init_delay(void) +{ + shmobile_setup_delay(800, 1, 3); /* Cortex-A9 @ 800MHz */ +}; + +static void __init r8a7740_generic_init(void) +{ + r8a7740_clock_init(0); + r8a7740_add_standard_devices_dt(); +} + static const char *r8a7740_boards_compat_dt[] __initdata = { "renesas,r8a7740", NULL, @@ -1027,9 +1030,10 @@ static const char *r8a7740_boards_compat_dt[] __initdata = { DT_MACHINE_START(R8A7740_DT, "Generic R8A7740 (Flattened Device Tree)") .map_io = r8a7740_map_io, - .init_early = r8a7740_add_early_devices_dt, - .init_irq = r8a7740_init_irq, - .init_machine = r8a7740_add_standard_devices_dt, + .init_early = r8a7740_init_delay, + .init_irq = r8a7740_init_irq_of, + .init_machine = r8a7740_generic_init, + .init_time = shmobile_timer_init, .dt_compat = r8a7740_boards_compat_dt, MACHINE_END -- 2.39.2