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-rw-r--r--Documentation/devicetree/bindings/arm/keystone/keystone.txt10
-rw-r--r--arch/arm/Kconfig3
-rw-r--r--arch/arm/Kconfig.debug16
-rw-r--r--arch/arm/Makefile1
-rw-r--r--arch/arm/boot/dts/keystone.dts117
-rw-r--r--arch/arm/configs/keystone_defconfig157
-rw-r--r--arch/arm/include/debug/keystone.S43
-rw-r--r--arch/arm/mach-keystone/Kconfig15
-rw-r--r--arch/arm/mach-keystone/Makefile2
-rw-r--r--arch/arm/mach-keystone/Makefile.boot1
-rw-r--r--arch/arm/mach-keystone/keystone.c75
-rw-r--r--arch/arm/mach-keystone/keystone.h17
-rw-r--r--arch/arm/mach-keystone/platsmp.c52
13 files changed, 509 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/keystone/keystone.txt b/Documentation/devicetree/bindings/arm/keystone/keystone.txt
new file mode 100644
index 000000000000..63c0e6ae5cf7
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/keystone/keystone.txt
@@ -0,0 +1,10 @@
+TI Keystone Platforms Device Tree Bindings
+-----------------------------------------------
+
+Boards with Keystone2 based devices (TCI66xxK2H) SOC shall have the
+following properties.
+
+Required properties:
+ - compatible: All TI specific devices present in Keystone SOC should be in
+ the form "ti,keystone-*". Generic devices like gic, arch_timers, ns16550
+ type UART should use the specified compatible for those devices.
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 6cdf8bdc9590..2ca6d73472b6 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -950,6 +950,8 @@ 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"
@@ -1562,6 +1564,7 @@ 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
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index e6a6ab1b10d7..d2b000a31b47 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -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
@@ -657,6 +671,8 @@ 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 || \
DEBUG_MVEBU_UART_ALTERNATE
default "debug/mxs.S" if DEBUG_IMX23_UART || DEBUG_IMX28_UART
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 3380c4f51757..650be0f10416 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -195,6 +195,7 @@ 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/boot/dts/keystone.dts b/arch/arm/boot/dts/keystone.dts
new file mode 100644
index 000000000000..1334b42c6b77
--- /dev/null
+++ b/arch/arm/boot/dts/keystone.dts
@@ -0,0 +1,117 @@
+/*
+ * Copyright 2013 Texas Instruments, Inc.
+ *
+ * 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.
+ */
+
+/dts-v1/;
+/include/ "skeleton.dtsi"
+
+/ {
+ model = "Texas Instruments Keystone 2 SoC";
+ compatible = "ti,keystone-evm";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ interrupt-parent = <&gic>;
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ memory {
+ reg = <0x00000000 0x80000000 0x00000000 0x40000000>;
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ interrupt-parent = <&gic>;
+
+ cpu@0 {
+ compatible = "arm,cortex-a15";
+ device_type = "cpu";
+ reg = <0>;
+ };
+
+ cpu@1 {
+ compatible = "arm,cortex-a15";
+ device_type = "cpu";
+ reg = <1>;
+ };
+
+ cpu@2 {
+ compatible = "arm,cortex-a15";
+ device_type = "cpu";
+ reg = <2>;
+ };
+
+ cpu@3 {
+ compatible = "arm,cortex-a15";
+ device_type = "cpu";
+ reg = <3>;
+ };
+ };
+
+ gic: interrupt-controller {
+ compatible = "arm,cortex-a15-gic";
+ #interrupt-cells = <3>;
+ #size-cells = <0>;
+ #address-cells = <1>;
+ interrupt-controller;
+ reg = <0x0 0x02561000 0x0 0x1000>,
+ <0x0 0x02562000 0x0 0x2000>;
+ };
+
+ timer {
+ compatible = "arm,armv7-timer";
+ interrupts = <1 13 0xf08>,
+ <1 14 0xf08>,
+ <1 11 0xf08>,
+ <1 10 0x308>;
+ };
+
+ pmu {
+ compatible = "arm,cortex-a15-pmu";
+ interrupts = <0 20 0xf01>,
+ <0 21 0xf01>,
+ <0 22 0xf01>,
+ <0 23 0xf01>;
+ };
+
+ soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "ti,keystone","simple-bus";
+ interrupt-parent = <&gic>;
+ ranges = <0x0 0x0 0x0 0xc0000000>;
+
+ rstctrl: reset-controller {
+ compatible = "ti,keystone-reset";
+ reg = <0x023100e8 4>; /* pll reset control reg */
+ };
+
+ uart0: serial@02530c00 {
+ compatible = "ns16550a";
+ current-speed = <115200>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ reg = <0x02530c00 0x100>;
+ clock-frequency = <133120000>;
+ interrupts = <0 277 0xf01>;
+ };
+
+ uart1: serial@02531000 {
+ compatible = "ns16550a";
+ current-speed = <115200>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ reg = <0x02531000 0x100>;
+ clock-frequency = <133120000>;
+ interrupts = <0 280 0xf01>;
+ };
+
+ };
+};
diff --git a/arch/arm/configs/keystone_defconfig b/arch/arm/configs/keystone_defconfig
new file mode 100644
index 000000000000..62e968cac9dc
--- /dev/null
+++ b/arch/arm/configs/keystone_defconfig
@@ -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
index 000000000000..9aef9ba3f4f0
--- /dev/null
+++ b/arch/arm/include/debug/keystone.S
@@ -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
index 000000000000..2dbd4ce3653c
--- /dev/null
+++ b/arch/arm/mach-keystone/Kconfig
@@ -0,0 +1,15 @@
+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 HAVE_SMP
+ 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
index 000000000000..3f6b8ab82235
--- /dev/null
+++ b/arch/arm/mach-keystone/Makefile
@@ -0,0 +1,2 @@
+obj-y := keystone.o
+obj-$(CONFIG_SMP) += platsmp.o
diff --git a/arch/arm/mach-keystone/Makefile.boot b/arch/arm/mach-keystone/Makefile.boot
new file mode 100644
index 000000000000..f3835c43af61
--- /dev/null
+++ b/arch/arm/mach-keystone/Makefile.boot
@@ -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
index 000000000000..fe4d9ff93a7e
--- /dev/null
+++ b/arch/arm/mach-keystone/keystone.c
@@ -0,0 +1,75 @@
+/*
+ * 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>
+#include <asm/smp_plat.h>
+
+#include "keystone.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")
+ .smp = smp_ops(keystone_smp_ops),
+ .init_machine = keystone_init,
+ .dt_compat = keystone_match,
+ .restart = keystone_restart,
+MACHINE_END
diff --git a/arch/arm/mach-keystone/keystone.h b/arch/arm/mach-keystone/keystone.h
new file mode 100644
index 000000000000..43a1b4789a6e
--- /dev/null
+++ b/arch/arm/mach-keystone/keystone.h
@@ -0,0 +1,17 @@
+/*
+ * 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.
+ */
+
+#ifndef __KEYSTONE_H__
+#define __KEYSTONE_H__
+
+extern struct smp_operations keystone_smp_ops;
+extern void secondary_startup(void);
+
+#endif /* __KEYSTONE_H__ */
diff --git a/arch/arm/mach-keystone/platsmp.c b/arch/arm/mach-keystone/platsmp.c
new file mode 100644
index 000000000000..630ab3bd5f78
--- /dev/null
+++ b/arch/arm/mach-keystone/platsmp.c
@@ -0,0 +1,52 @@
+/*
+ * Keystone SOC SMP platform code
+ *
+ * Copyright 2013 Texas Instruments, Inc.
+ * Cyril Chemparathy <cyril@ti.com>
+ * Santosh Shilimkar <santosh.shillimkar@ti.com>
+ *
+ * Based on platsmp.c, Copyright (C) 2002 ARM Ltd.
+ *
+ * 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/init.h>
+#include <linux/smp.h>
+#include <linux/io.h>
+
+#include <asm/smp_plat.h>
+#include <asm/prom.h>
+
+#include "keystone.h"
+
+static int __cpuinit keystone_smp_boot_secondary(unsigned int cpu,
+ struct task_struct *idle)
+{
+ unsigned long start = virt_to_phys(&secondary_startup);
+ int error;
+
+ pr_debug("keystone-smp: booting cpu %d, vector %08lx\n",
+ cpu, start);
+
+ asm volatile (
+ "mov r0, #0\n" /* power on cmd */
+ "mov r1, %1\n" /* cpu */
+ "mov r2, %2\n" /* start */
+ ".inst 0xe1600070\n" /* smc #0 */
+ "mov %0, r0\n"
+ : "=r" (error)
+ : "r"(cpu), "r"(start)
+ : "cc", "r0", "r1", "r2", "memory"
+ );
+
+ pr_debug("keystone-smp: monitor returned %d\n", error);
+
+ return error;
+}
+
+struct smp_operations keystone_smp_ops __initdata = {
+ .smp_init_cpus = arm_dt_init_cpu_maps,
+ .smp_boot_secondary = keystone_smp_boot_secondary,
+};
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 01:39:56 +0000