]> git.karo-electronics.de Git - linux-beck.git/commitdiff
ARM: keystone: Add minimal TI Keystone platform support
authorSantosh Shilimkar <santosh.shilimkar@ti.com>
Mon, 10 Jun 2013 15:27:13 +0000 (11:27 -0400)
committerSantosh Shilimkar <santosh.shilimkar@ti.com>
Mon, 17 Jun 2013 22:35:34 +0000 (18:35 -0400)
Texas Instruments Keystone family of multi-core devices are
based on ARM Cortex A15. Patch adds basic definitions for a
new Keystone sub-architecture in ARM.

The TCI66xxK2H Communications Infrastructure Keystone SoCs
are member of the C66x family based on TI's new KeyStone 2
multi-core SoC Architecture designed specifically for high
performance wireless and networking infrastructure applications.
The SOCs contains many subsystems like Cortex A15 ARM CorePacs,
C66XX DSP CorePacs, MSMC memory controller, Tera Net bus,
IP Network, Navigator, Hyperlink, 1G/10G Ethernet, Radio layers
and queue based communication systems.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: arm@kernel.org
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
arch/arm/Kconfig
arch/arm/Kconfig.debug
arch/arm/Makefile
arch/arm/configs/keystone_defconfig [new file with mode: 0644]
arch/arm/include/debug/keystone.S [new file with mode: 0644]
arch/arm/mach-keystone/Kconfig [new file with mode: 0644]
arch/arm/mach-keystone/Makefile [new file with mode: 0644]
arch/arm/mach-keystone/Makefile.boot [new file with mode: 0644]
arch/arm/mach-keystone/keystone.c [new file with mode: 0644]

index 49d993cee51232874a81814fe39ca99e09b88bad..62cd2fac482e33feab1fd658674a686df8163f12 100644 (file)
@@ -948,6 +948,8 @@ source "arch/arm/mach-iop13xx/Kconfig"
 
 source "arch/arm/mach-ixp4xx/Kconfig"
 
+source "arch/arm/mach-keystone/Kconfig"
+
 source "arch/arm/mach-kirkwood/Kconfig"
 
 source "arch/arm/mach-ks8695/Kconfig"
@@ -1560,6 +1562,7 @@ config ARCH_NR_GPIO
        int
        default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
        default 512 if SOC_OMAP5
+       default 512 if ARCH_KEYSTONE
        default 392 if ARCH_U8500
        default 352 if ARCH_VT8500
        default 288 if ARCH_SUNXI
index 1d41908d5cda0644a31a9048c882369f21db235b..62e7f95c66438ff9802f8ee0c917bcc449f67b70 100644 (file)
@@ -251,6 +251,20 @@ choice
                  Say Y here if you want kernel low-level debugging support
                  on i.MX6Q/DL.
 
+       config DEBUG_KEYSTONE_UART0
+               bool "Kernel low-level debugging on KEYSTONE2 using UART0"
+               depends on ARCH_KEYSTONE
+               help
+                 Say Y here if you want the debug print routines to direct
+                 their output to UART0 serial port on KEYSTONE2 devices.
+
+       config DEBUG_KEYSTONE_UART1
+               bool "Kernel low-level debugging on KEYSTONE2 using UART1"
+               depends on ARCH_KEYSTONE
+               help
+                 Say Y here if you want the debug print routines to direct
+                 their output to UART1 serial port on KEYSTONE2 devices.
+
        config DEBUG_MMP_UART2
                bool "Kernel low-level debugging message via MMP UART2"
                depends on ARCH_MMP
@@ -632,6 +646,8 @@ config DEBUG_LL_INCLUDE
                                 DEBUG_IMX51_UART || \
                                 DEBUG_IMX53_UART ||\
                                 DEBUG_IMX6Q_UART
+       default "debug/keystone.S" if DEBUG_KEYSTONE_UART0 || \
+                                     DEBUG_KEYSTONE_UART1
        default "debug/mvebu.S" if DEBUG_MVEBU_UART
        default "debug/mxs.S" if DEBUG_IMX23_UART || DEBUG_IMX28_UART
        default "debug/nomadik.S" if DEBUG_NOMADIK_UART
index 1ba358ba16b871aec3b366cab9b4e4066048e69c..a1c9a78d63d4e0dd6a679b71c82e8c1f338a464e 100644 (file)
@@ -194,6 +194,7 @@ machine-$(CONFIG_PLAT_SPEAR)                += spear
 machine-$(CONFIG_ARCH_VIRT)            += virt
 machine-$(CONFIG_ARCH_ZYNQ)            += zynq
 machine-$(CONFIG_ARCH_SUNXI)           += sunxi
+machine-$(CONFIG_ARCH_KEYSTONE)                += keystone
 
 # Platform directory name.  This list is sorted alphanumerically
 # by CONFIG_* macro name.
diff --git a/arch/arm/configs/keystone_defconfig b/arch/arm/configs/keystone_defconfig
new file mode 100644 (file)
index 0000000..62e968c
--- /dev/null
@@ -0,0 +1,157 @@
+# CONFIG_SWAP is not set
+CONFIG_POSIX_MQUEUE=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_KALLSYMS_ALL=y
+# CONFIG_ELF_CORE is not set
+# CONFIG_BASE_FULL is not set
+CONFIG_EMBEDDED=y
+CONFIG_PROFILING=y
+CONFIG_OPROFILE=y
+CONFIG_KPROBES=y
+CONFIG_MODULES=y
+CONFIG_MODULE_FORCE_LOAD=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_MODVERSIONS=y
+CONFIG_ARCH_KEYSTONE=y
+CONFIG_ARM_LPAE=y
+CONFIG_SMP=y
+CONFIG_PREEMPT=y
+CONFIG_AEABI=y
+CONFIG_HIGHMEM=y
+CONFIG_VFP=y
+CONFIG_NEON=y
+# CONFIG_SUSPEND is not set
+CONFIG_PM_RUNTIME=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_UNIX_DIAG=y
+CONFIG_XFRM_USER=y
+CONFIG_XFRM_SUB_POLICY=y
+CONFIG_XFRM_STATISTICS=y
+CONFIG_NET_KEY=y
+CONFIG_NET_KEY_MIGRATE=y
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_IP_ROUTE_MULTIPATH=y
+CONFIG_IP_ROUTE_VERBOSE=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_IP_PNP_BOOTP=y
+CONFIG_NET_IPIP=y
+CONFIG_NET_IPGRE_DEMUX=y
+CONFIG_NET_IPGRE=y
+CONFIG_IP_MROUTE=y
+CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
+CONFIG_IP_PIMSM_V2=y
+CONFIG_INET_AH=y
+CONFIG_INET_IPCOMP=y
+CONFIG_IPV6=y
+CONFIG_INET6_XFRM_MODE_TRANSPORT=m
+CONFIG_INET6_XFRM_MODE_TUNNEL=m
+CONFIG_INET6_XFRM_MODE_BEET=m
+CONFIG_IPV6_SIT=m
+CONFIG_IPV6_MULTIPLE_TABLES=y
+CONFIG_IPV6_SUBTREES=y
+CONFIG_IPV6_MROUTE=y
+CONFIG_IPV6_PIMSM_V2=y
+CONFIG_NETFILTER=y
+CONFIG_NF_CONNTRACK=y
+CONFIG_NF_CT_NETLINK=y
+CONFIG_NETFILTER_XT_TARGET_CLASSIFY=y
+CONFIG_NETFILTER_XT_TARGET_CONNMARK=y
+CONFIG_NETFILTER_XT_TARGET_IDLETIMER=y
+CONFIG_NETFILTER_XT_TARGET_MARK=y
+CONFIG_NETFILTER_XT_MATCH_COMMENT=y
+CONFIG_NETFILTER_XT_MATCH_CONNBYTES=y
+CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=y
+CONFIG_NETFILTER_XT_MATCH_CONNMARK=y
+CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y
+CONFIG_NETFILTER_XT_MATCH_CPU=y
+CONFIG_NETFILTER_XT_MATCH_IPRANGE=y
+CONFIG_NETFILTER_XT_MATCH_LENGTH=y
+CONFIG_NETFILTER_XT_MATCH_MAC=y
+CONFIG_NETFILTER_XT_MATCH_MARK=y
+CONFIG_NETFILTER_XT_MATCH_MULTIPORT=y
+CONFIG_NETFILTER_XT_MATCH_PKTTYPE=y
+CONFIG_NETFILTER_XT_MATCH_STATE=y
+CONFIG_NF_CONNTRACK_IPV4=y
+CONFIG_IP_NF_IPTABLES=y
+CONFIG_IP_NF_MATCH_AH=y
+CONFIG_IP_NF_MATCH_ECN=y
+CONFIG_IP_NF_MATCH_TTL=y
+CONFIG_IP_NF_FILTER=y
+CONFIG_IP_NF_TARGET_REJECT=y
+CONFIG_IP_NF_TARGET_ULOG=y
+CONFIG_IP_NF_MANGLE=y
+CONFIG_IP_NF_TARGET_CLUSTERIP=y
+CONFIG_IP_NF_TARGET_ECN=y
+CONFIG_IP_NF_TARGET_TTL=y
+CONFIG_IP_NF_RAW=y
+CONFIG_IP_NF_ARPTABLES=y
+CONFIG_IP_NF_ARPFILTER=y
+CONFIG_IP_NF_ARP_MANGLE=y
+CONFIG_IP6_NF_IPTABLES=m
+CONFIG_IP_SCTP=y
+CONFIG_VLAN_8021Q=y
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_CMA=y
+CONFIG_MTD=y
+CONFIG_MTD_CMDLINE_PARTS=y
+CONFIG_MTD_BLOCK=y
+CONFIG_MTD_PLATRAM=y
+CONFIG_MTD_M25P80=y
+CONFIG_MTD_NAND=y
+CONFIG_MTD_UBI=y
+CONFIG_PROC_DEVICETREE=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_EEPROM_AT24=y
+CONFIG_NETDEVICES=y
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_OF_PLATFORM=y
+# CONFIG_HW_RANDOM is not set
+CONFIG_I2C=y
+# CONFIG_I2C_COMPAT is not set
+CONFIG_I2C_CHARDEV=y
+CONFIG_SPI=y
+CONFIG_SPI_SPIDEV=y
+# CONFIG_HWMON is not set
+CONFIG_WATCHDOG=y
+# CONFIG_USB_SUPPORT is not set
+CONFIG_DMADEVICES=y
+CONFIG_COMMON_CLK_DEBUG=y
+CONFIG_MEMORY=y
+CONFIG_TMPFS=y
+CONFIG_JFFS2_FS=y
+CONFIG_JFFS2_FS_WBUF_VERIFY=y
+CONFIG_UBIFS_FS=y
+CONFIG_CRAMFS=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3_ACL=y
+CONFIG_ROOT_NFS=y
+CONFIG_NFSD=y
+CONFIG_NFSD_V3=y
+CONFIG_NFSD_V3_ACL=y
+CONFIG_PRINTK_TIME=y
+CONFIG_DEBUG_SHIRQ=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_USER=y
+CONFIG_CRYPTO_USER=y
+CONFIG_CRYPTO_NULL=y
+CONFIG_CRYPTO_AUTHENC=y
+CONFIG_CRYPTO_CBC=y
+CONFIG_CRYPTO_CTR=y
+CONFIG_CRYPTO_XCBC=y
+CONFIG_CRYPTO_DES=y
+CONFIG_CRYPTO_ANSI_CPRNG=y
+CONFIG_CRYPTO_USER_API_HASH=y
+CONFIG_CRYPTO_USER_API_SKCIPHER=y
diff --git a/arch/arm/include/debug/keystone.S b/arch/arm/include/debug/keystone.S
new file mode 100644 (file)
index 0000000..9aef9ba
--- /dev/null
@@ -0,0 +1,43 @@
+/*
+ * Early serial debug output macro for Keystone SOCs
+ *
+ * Copyright 2013 Texas Instruments, Inc.
+ *     Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * Based on RMKs low level debug code.
+ *  Copyright (C) 1994-1999 Russell King
+ *
+ * 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.
+ */
+
+#include <linux/serial_reg.h>
+
+#define UART_SHIFT 2
+#if defined(CONFIG_DEBUG_KEYSTONE_UART0)
+#define UART_PHYS              0x02530c00
+#define UART_VIRT              0xfeb30c00
+#elif defined(CONFIG_DEBUG_KEYSTONE_UART1)
+#define UART_PHYS              0x02531000
+#define UART_VIRT              0xfeb31000
+#endif
+
+       .macro  addruart, rp, rv, tmp
+       ldr     \rv, =UART_VIRT                 @ physical base address
+       ldr     \rp, =UART_PHYS                 @ virtual base address
+       .endm
+
+       .macro  senduart,rd,rx
+       str     \rd, [\rx, #UART_TX << UART_SHIFT]
+       .endm
+
+       .macro  busyuart,rd,rx
+1002:  ldr     \rd, [\rx, #UART_LSR << UART_SHIFT]
+       and     \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE
+       teq     \rd, #UART_LSR_TEMT | UART_LSR_THRE
+       bne     1002b
+       .endm
+
+       .macro  waituart,rd,rx
+       .endm
diff --git a/arch/arm/mach-keystone/Kconfig b/arch/arm/mach-keystone/Kconfig
new file mode 100644 (file)
index 0000000..aebe8cd
--- /dev/null
@@ -0,0 +1,14 @@
+config ARCH_KEYSTONE
+       bool "Texas Instruments Keystone Devices"
+       depends on ARCH_MULTI_V7
+       select CPU_V7
+       select ARM_GIC
+       select HAVE_ARM_ARCH_TIMER
+       select CLKSRC_MMIO
+       select GENERIC_CLOCKEVENTS
+       select HAVE_SCHED_CLOCK
+       select ARCH_WANT_OPTIONAL_GPIOLIB
+       select ARM_ERRATA_798181
+       help
+         Support for boards based on the Texas Instruments Keystone family of
+         SoCs.
diff --git a/arch/arm/mach-keystone/Makefile b/arch/arm/mach-keystone/Makefile
new file mode 100644 (file)
index 0000000..d4671d5
--- /dev/null
@@ -0,0 +1 @@
+obj-y                                  := keystone.o
diff --git a/arch/arm/mach-keystone/Makefile.boot b/arch/arm/mach-keystone/Makefile.boot
new file mode 100644 (file)
index 0000000..f3835c4
--- /dev/null
@@ -0,0 +1 @@
+zreladdr-y     := 0x80008000
diff --git a/arch/arm/mach-keystone/keystone.c b/arch/arm/mach-keystone/keystone.c
new file mode 100644 (file)
index 0000000..a67c19b
--- /dev/null
@@ -0,0 +1,71 @@
+/*
+ * Keystone2 based boards and SOC related code.
+ *
+ * Copyright 2013 Texas Instruments, Inc.
+ *     Cyril Chemparathy <cyril@ti.com>
+ *     Santosh Shilimkar <santosh.shillimkar@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/init.h>
+#include <linux/of_platform.h>
+#include <linux/of_address.h>
+
+#include <asm/setup.h>
+#include <asm/mach/map.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+
+#define PLL_RESET_WRITE_KEY_MASK               0xffff0000
+#define PLL_RESET_WRITE_KEY                    0x5a69
+#define PLL_RESET                              BIT(16)
+
+static void __iomem *keystone_rstctrl;
+
+static void __init keystone_init(void)
+{
+       struct device_node *node;
+
+       node = of_find_compatible_node(NULL, NULL, "ti,keystone-reset");
+       if (WARN_ON(!node))
+               pr_warn("ti,keystone-reset node undefined\n");
+
+       keystone_rstctrl = of_iomap(node, 0);
+       if (WARN_ON(!keystone_rstctrl))
+               pr_warn("ti,keystone-reset iomap error\n");
+
+       of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+}
+
+static const char *keystone_match[] __initconst = {
+       "ti,keystone-evm",
+       NULL,
+};
+
+void keystone_restart(char mode, const char *cmd)
+{
+       u32 val;
+
+       BUG_ON(!keystone_rstctrl);
+
+       /* Enable write access to RSTCTRL */
+       val = readl(keystone_rstctrl);
+       val &= PLL_RESET_WRITE_KEY_MASK;
+       val |= PLL_RESET_WRITE_KEY;
+       writel(val, keystone_rstctrl);
+
+       /* Reset the SOC */
+       val = readl(keystone_rstctrl);
+       val &= ~PLL_RESET;
+       writel(val, keystone_rstctrl);
+}
+
+DT_MACHINE_START(KEYSTONE, "Keystone")
+       .init_machine   = keystone_init,
+       .dt_compat      = keystone_match,
+       .restart        = keystone_restart,
+MACHINE_END