diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/arm/mach-hisi/Kconfig | 30 | ||||
| -rw-r--r-- | arch/arm/mach-hisi/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-hisi/core.h | 5 | ||||
| -rw-r--r-- | arch/arm/mach-hisi/headsmp.S | 16 | ||||
| -rw-r--r-- | arch/arm/mach-hisi/hisilicon.c | 43 | ||||
| -rw-r--r-- | arch/arm/mach-hisi/hotplug.c | 58 | ||||
| -rw-r--r-- | arch/arm/mach-hisi/platsmp.c | 53 |
7 files changed, 166 insertions, 41 deletions
diff --git a/arch/arm/mach-hisi/Kconfig b/arch/arm/mach-hisi/Kconfig index feee4dbb0760..984882943f77 100644 --- a/arch/arm/mach-hisi/Kconfig +++ b/arch/arm/mach-hisi/Kconfig @@ -1,12 +1,36 @@ -config ARCH_HI3xxx - bool "Hisilicon Hi36xx/Hi37xx family" if ARCH_MULTI_V7 +config ARCH_HISI + bool "Hisilicon SoC Support" + depends on ARCH_MULTIPLATFORM select ARM_AMBA select ARM_GIC select ARM_TIMER_SP804 + select POWER_RESET + select POWER_RESET_HISI + select POWER_SUPPLY + +if ARCH_HISI + +menu "Hisilicon platform type" + +config ARCH_HI3xxx + bool "Hisilicon Hi36xx family" if ARCH_MULTI_V7 + select CACHE_L2X0 + select HAVE_ARM_SCU if SMP + select HAVE_ARM_TWD if SMP + select PINCTRL + select PINCTRL_SINGLE + help + Support for Hisilicon Hi36xx SoC family + +config ARCH_HIX5HD2 + bool "Hisilicon X5HD2 family" if ARCH_MULTI_V7 select CACHE_L2X0 select HAVE_ARM_SCU if SMP select HAVE_ARM_TWD if SMP select PINCTRL select PINCTRL_SINGLE help - Support for Hisilicon Hi36xx/Hi37xx processor family + Support for Hisilicon HIX5HD2 SoC family +endmenu + +endif diff --git a/arch/arm/mach-hisi/Makefile b/arch/arm/mach-hisi/Makefile index 2ae1b59267c2..ee2506b9cde3 100644 --- a/arch/arm/mach-hisi/Makefile +++ b/arch/arm/mach-hisi/Makefile @@ -3,4 +3,4 @@ # obj-y += hisilicon.o -obj-$(CONFIG_SMP) += platsmp.o hotplug.o +obj-$(CONFIG_SMP) += platsmp.o hotplug.o headsmp.o diff --git a/arch/arm/mach-hisi/core.h b/arch/arm/mach-hisi/core.h index af23ec204538..88b1f487d065 100644 --- a/arch/arm/mach-hisi/core.h +++ b/arch/arm/mach-hisi/core.h @@ -12,4 +12,9 @@ extern void hi3xxx_cpu_die(unsigned int cpu); extern int hi3xxx_cpu_kill(unsigned int cpu); extern void hi3xxx_set_cpu(int cpu, bool enable); +extern void hix5hd2_secondary_startup(void); +extern struct smp_operations hix5hd2_smp_ops; +extern void hix5hd2_set_cpu(int cpu, bool enable); +extern void hix5hd2_cpu_die(unsigned int cpu); + #endif diff --git a/arch/arm/mach-hisi/headsmp.S b/arch/arm/mach-hisi/headsmp.S new file mode 100644 index 000000000000..278889c00b77 --- /dev/null +++ b/arch/arm/mach-hisi/headsmp.S @@ -0,0 +1,16 @@ +/* + * Copyright (c) 2014 Hisilicon Limited. + * Copyright (c) 2014 Linaro Ltd. + * + * 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/linkage.h> +#include <linux/init.h> + + __CPUINIT + +ENTRY(hix5hd2_secondary_startup) + bl v7_invalidate_l1 + b secondary_startup diff --git a/arch/arm/mach-hisi/hisilicon.c b/arch/arm/mach-hisi/hisilicon.c index 741faf3e7100..7cda6dda3cd0 100644 --- a/arch/arm/mach-hisi/hisilicon.c +++ b/arch/arm/mach-hisi/hisilicon.c @@ -14,16 +14,10 @@ #include <linux/clk-provider.h> #include <linux/clocksource.h> #include <linux/irqchip.h> -#include <linux/of_address.h> -#include <linux/of_platform.h> - -#include <asm/proc-fns.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> -#include "core.h" - #define HI3620_SYSCTRL_PHYS_BASE 0xfc802000 #define HI3620_SYSCTRL_VIRT_BASE 0xfe802000 @@ -51,32 +45,6 @@ static void __init hi3620_map_io(void) iotable_init(hi3620_io_desc, ARRAY_SIZE(hi3620_io_desc)); } -static void hi3xxx_restart(enum reboot_mode mode, const char *cmd) -{ - struct device_node *np; - void __iomem *base; - int offset; - - np = of_find_compatible_node(NULL, NULL, "hisilicon,sysctrl"); - if (!np) { - pr_err("failed to find hisilicon,sysctrl node\n"); - return; - } - base = of_iomap(np, 0); - if (!base) { - pr_err("failed to map address in hisilicon,sysctrl node\n"); - return; - } - if (of_property_read_u32(np, "reboot-offset", &offset) < 0) { - pr_err("failed to find reboot-offset property\n"); - return; - } - writel_relaxed(0xdeadbeef, base + offset); - - while (1) - cpu_do_idle(); -} - static const char *hi3xxx_compat[] __initconst = { "hisilicon,hi3620-hi4511", NULL, @@ -85,6 +53,13 @@ static const char *hi3xxx_compat[] __initconst = { DT_MACHINE_START(HI3620, "Hisilicon Hi3620 (Flattened Device Tree)") .map_io = hi3620_map_io, .dt_compat = hi3xxx_compat, - .smp = smp_ops(hi3xxx_smp_ops), - .restart = hi3xxx_restart, +MACHINE_END + +static const char *hix5hd2_compat[] __initconst = { + "hisilicon,hix5hd2", + NULL, +}; + +DT_MACHINE_START(HIX5HD2_DT, "Hisilicon HIX5HD2 (Flattened Device Tree)") + .dt_compat = hix5hd2_compat, MACHINE_END diff --git a/arch/arm/mach-hisi/hotplug.c b/arch/arm/mach-hisi/hotplug.c index abd441b0c604..84e6919f68c7 100644 --- a/arch/arm/mach-hisi/hotplug.c +++ b/arch/arm/mach-hisi/hotplug.c @@ -57,6 +57,14 @@ #define CPU0_NEON_SRST_REQ_EN (1 << 4) #define CPU0_SRST_REQ_EN (1 << 0) +#define HIX5HD2_PERI_CRG20 0x50 +#define CRG20_CPU1_RESET (1 << 17) + +#define HIX5HD2_PERI_PMC0 0x1000 +#define PMC0_CPU1_WAIT_MTCOMS_ACK (1 << 8) +#define PMC0_CPU1_PMC_ENABLE (1 << 7) +#define PMC0_CPU1_POWERDOWN (1 << 3) + enum { HI3620_CTRL, ERROR_CTRL, @@ -157,6 +165,50 @@ void hi3xxx_set_cpu(int cpu, bool enable) set_cpu_hi3620(cpu, enable); } +static bool hix5hd2_hotplug_init(void) +{ + struct device_node *np; + + np = of_find_compatible_node(NULL, NULL, "hisilicon,cpuctrl"); + if (np) { + ctrl_base = of_iomap(np, 0); + return true; + } + return false; +} + +void hix5hd2_set_cpu(int cpu, bool enable) +{ + u32 val = 0; + + if (!ctrl_base) + if (!hix5hd2_hotplug_init()) + BUG(); + + if (enable) { + /* power on cpu1 */ + val = readl_relaxed(ctrl_base + HIX5HD2_PERI_PMC0); + val &= ~(PMC0_CPU1_WAIT_MTCOMS_ACK | PMC0_CPU1_POWERDOWN); + val |= PMC0_CPU1_PMC_ENABLE; + writel_relaxed(val, ctrl_base + HIX5HD2_PERI_PMC0); + /* unreset */ + val = readl_relaxed(ctrl_base + HIX5HD2_PERI_CRG20); + val &= ~CRG20_CPU1_RESET; + writel_relaxed(val, ctrl_base + HIX5HD2_PERI_CRG20); + } else { + /* power down cpu1 */ + val = readl_relaxed(ctrl_base + HIX5HD2_PERI_PMC0); + val |= PMC0_CPU1_PMC_ENABLE | PMC0_CPU1_POWERDOWN; + val &= ~PMC0_CPU1_WAIT_MTCOMS_ACK; + writel_relaxed(val, ctrl_base + HIX5HD2_PERI_PMC0); + + /* reset */ + val = readl_relaxed(ctrl_base + HIX5HD2_PERI_CRG20); + val |= CRG20_CPU1_RESET; + writel_relaxed(val, ctrl_base + HIX5HD2_PERI_CRG20); + } +} + static inline void cpu_enter_lowpower(void) { unsigned int v; @@ -199,4 +251,10 @@ int hi3xxx_cpu_kill(unsigned int cpu) hi3xxx_set_cpu(cpu, false); return 1; } + +void hix5hd2_cpu_die(unsigned int cpu) +{ + flush_cache_all(); + hix5hd2_set_cpu(cpu, false); +} #endif diff --git a/arch/arm/mach-hisi/platsmp.c b/arch/arm/mach-hisi/platsmp.c index 471f1ee3be2b..575dd8285f1f 100644 --- a/arch/arm/mach-hisi/platsmp.c +++ b/arch/arm/mach-hisi/platsmp.c @@ -17,6 +17,8 @@ #include "core.h" +#define HIX5HD2_BOOT_ADDRESS 0xffff0000 + static void __iomem *ctrl_base; void hi3xxx_set_cpu_jump(int cpu, void *jump_addr) @@ -35,11 +37,9 @@ int hi3xxx_get_cpu_jump(int cpu) return readl_relaxed(ctrl_base + ((cpu - 1) << 2)); } -static void __init hi3xxx_smp_prepare_cpus(unsigned int max_cpus) +static void __init hisi_enable_scu_a9(void) { - struct device_node *np = NULL; unsigned long base = 0; - u32 offset = 0; void __iomem *scu_base = NULL; if (scu_a9_has_base()) { @@ -52,6 +52,14 @@ static void __init hi3xxx_smp_prepare_cpus(unsigned int max_cpus) scu_enable(scu_base); iounmap(scu_base); } +} + +static void __init hi3xxx_smp_prepare_cpus(unsigned int max_cpus) +{ + struct device_node *np = NULL; + u32 offset = 0; + + hisi_enable_scu_a9(); if (!ctrl_base) { np = of_find_compatible_node(NULL, NULL, "hisilicon,sysctrl"); if (!np) { @@ -87,3 +95,42 @@ struct smp_operations hi3xxx_smp_ops __initdata = { .cpu_kill = hi3xxx_cpu_kill, #endif }; + +static void __init hix5hd2_smp_prepare_cpus(unsigned int max_cpus) +{ + hisi_enable_scu_a9(); +} + +void hix5hd2_set_scu_boot_addr(phys_addr_t start_addr, phys_addr_t jump_addr) +{ + void __iomem *virt; + + virt = ioremap(start_addr, PAGE_SIZE); + + writel_relaxed(0xe51ff004, virt); /* ldr pc, [rc, #-4] */ + writel_relaxed(jump_addr, virt + 4); /* pc jump phy address */ + iounmap(virt); +} + +static int hix5hd2_boot_secondary(unsigned int cpu, struct task_struct *idle) +{ + phys_addr_t jumpaddr; + + jumpaddr = virt_to_phys(hix5hd2_secondary_startup); + hix5hd2_set_scu_boot_addr(HIX5HD2_BOOT_ADDRESS, jumpaddr); + hix5hd2_set_cpu(cpu, true); + arch_send_wakeup_ipi_mask(cpumask_of(cpu)); + return 0; +} + + +struct smp_operations hix5hd2_smp_ops __initdata = { + .smp_prepare_cpus = hix5hd2_smp_prepare_cpus, + .smp_boot_secondary = hix5hd2_boot_secondary, +#ifdef CONFIG_HOTPLUG_CPU + .cpu_die = hix5hd2_cpu_die, +#endif +}; + +CPU_METHOD_OF_DECLARE(hi3xxx_smp, "hisilicon,hi3620-smp", &hi3xxx_smp_ops); +CPU_METHOD_OF_DECLARE(hix5hd2_smp, "hisilicon,hix5hd2-smp", &hix5hd2_smp_ops); |