diff options
Diffstat (limited to 'arch/arm/mach-highbank/highbank.c')
| -rw-r--r-- | arch/arm/mach-highbank/highbank.c | 90 |
1 files changed, 48 insertions, 42 deletions
diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c index 8e63ccdb0de..8c35ae4ff17 100644 --- a/arch/arm/mach-highbank/highbank.c +++ b/arch/arm/mach-highbank/highbank.c @@ -17,18 +17,19 @@ #include <linux/clkdev.h> #include <linux/clocksource.h> #include <linux/dma-mapping.h> +#include <linux/input.h> #include <linux/io.h> #include <linux/irqchip.h> +#include <linux/mailbox.h> #include <linux/of.h> #include <linux/of_irq.h> #include <linux/of_platform.h> #include <linux/of_address.h> +#include <linux/reboot.h> #include <linux/amba/bus.h> -#include <linux/clk-provider.h> +#include <linux/platform_device.h> -#include <asm/cacheflush.h> -#include <asm/cputype.h> -#include <asm/smp_plat.h> +#include <asm/psci.h> #include <asm/hardware/cache-l2x0.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> @@ -49,22 +50,14 @@ static void __init highbank_scu_map_io(void) scu_base_addr = ioremap(base, SZ_4K); } -#define HB_JUMP_TABLE_PHYS(cpu) (0x40 + (0x10 * (cpu))) -#define HB_JUMP_TABLE_VIRT(cpu) phys_to_virt(HB_JUMP_TABLE_PHYS(cpu)) -void highbank_set_cpu_jump(int cpu, void *jump_addr) +static void highbank_l2c310_write_sec(unsigned long val, unsigned reg) { - cpu = MPIDR_AFFINITY_LEVEL(cpu_logical_map(cpu), 0); - writel(virt_to_phys(jump_addr), HB_JUMP_TABLE_VIRT(cpu)); - __cpuc_flush_dcache_area(HB_JUMP_TABLE_VIRT(cpu), 16); - outer_clean_range(HB_JUMP_TABLE_PHYS(cpu), - HB_JUMP_TABLE_PHYS(cpu) + 15); -} - -static void highbank_l2x0_disable(void) -{ - /* Disable PL310 L2 Cache controller */ - highbank_smc1(0x102, 0x0); + if (reg == L2X0_CTRL) + highbank_smc1(0x102, val); + else + WARN_ONCE(1, "Highbank L2C310: ignoring write to reg 0x%x\n", + reg); } static void __init highbank_init_irq(void) @@ -73,28 +66,6 @@ static void __init highbank_init_irq(void) if (of_find_compatible_node(NULL, NULL, "arm,cortex-a9")) highbank_scu_map_io(); - - /* Enable PL310 L2 Cache controller */ - if (IS_ENABLED(CONFIG_CACHE_L2X0) && - of_find_compatible_node(NULL, NULL, "arm,pl310-cache")) { - highbank_smc1(0x102, 0x1); - l2x0_of_init(0, ~0UL); - outer_cache.disable = highbank_l2x0_disable; - } -} - -static void __init highbank_timer_init(void) -{ - struct device_node *np; - - /* Map system registers */ - np = of_find_compatible_node(NULL, NULL, "calxeda,hb-sregs"); - sregs_base = of_iomap(np, 0); - WARN_ON(!sregs_base); - - of_clk_init(NULL); - - clocksource_of_init(); } static void highbank_power_off(void) @@ -153,15 +124,49 @@ static struct notifier_block highbank_platform_nb = { .notifier_call = highbank_platform_notifier, }; +static struct platform_device highbank_cpuidle_device = { + .name = "cpuidle-calxeda", +}; + +static int hb_keys_notifier(struct notifier_block *nb, unsigned long event, void *data) +{ + u32 key = *(u32 *)data; + + if (event != 0x1000) + return 0; + + if (key == KEY_POWER) + orderly_poweroff(false); + else if (key == 0xffff) + ctrl_alt_del(); + + return 0; +} +static struct notifier_block hb_keys_nb = { + .notifier_call = hb_keys_notifier, +}; + static void __init highbank_init(void) { + struct device_node *np; + + /* Map system registers */ + np = of_find_compatible_node(NULL, NULL, "calxeda,hb-sregs"); + sregs_base = of_iomap(np, 0); + WARN_ON(!sregs_base); + pm_power_off = highbank_power_off; highbank_pm_init(); bus_register_notifier(&platform_bus_type, &highbank_platform_nb); bus_register_notifier(&amba_bustype, &highbank_amba_nb); + pl320_ipc_register_notifier(&hb_keys_nb); + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); + + if (psci_ops.cpu_suspend) + platform_device_register(&highbank_cpuidle_device); } static const char *highbank_match[] __initconst = { @@ -174,9 +179,10 @@ DT_MACHINE_START(HIGHBANK, "Highbank") #if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE) .dma_zone_size = (4ULL * SZ_1G), #endif - .smp = smp_ops(highbank_smp_ops), + .l2c_aux_val = 0, + .l2c_aux_mask = ~0, + .l2c_write_sec = highbank_l2c310_write_sec, .init_irq = highbank_init_irq, - .init_time = highbank_timer_init, .init_machine = highbank_init, .dt_compat = highbank_match, .restart = highbank_restart, |