diff options
Diffstat (limited to 'arch/arm/mach-highbank/highbank.c')
| -rw-r--r-- | arch/arm/mach-highbank/highbank.c | 87 |
1 files changed, 66 insertions, 21 deletions
diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c index d75b0a78d88..dc248167d20 100644 --- a/arch/arm/mach-highbank/highbank.c +++ b/arch/arm/mach-highbank/highbank.c @@ -15,6 +15,7 @@ */ #include <linux/clk.h> #include <linux/clkdev.h> +#include <linux/dma-mapping.h> #include <linux/io.h> #include <linux/irq.h> #include <linux/irqdomain.h> @@ -23,10 +24,11 @@ #include <linux/of_platform.h> #include <linux/of_address.h> #include <linux/smp.h> +#include <linux/amba/bus.h> +#include <asm/arch_timer.h> #include <asm/cacheflush.h> #include <asm/smp_plat.h> -#include <asm/smp_scu.h> #include <asm/smp_twd.h> #include <asm/hardware/arm_timer.h> #include <asm/hardware/timer-sp.h> @@ -40,16 +42,7 @@ #include "sysregs.h" void __iomem *sregs_base; - -#define HB_SCU_VIRT_BASE 0xfee00000 -void __iomem *scu_base_addr = ((void __iomem *)(HB_SCU_VIRT_BASE)); - -static struct map_desc scu_io_desc __initdata = { - .virtual = HB_SCU_VIRT_BASE, - .pfn = 0, /* run-time */ - .length = SZ_4K, - .type = MT_DEVICE, -}; +void __iomem *scu_base_addr; static void __init highbank_scu_map_io(void) { @@ -58,14 +51,7 @@ static void __init highbank_scu_map_io(void) /* Get SCU base */ asm("mrc p15, 4, %0, c15, c0, 0" : "=r" (base)); - scu_io_desc.pfn = __phys_to_pfn(base); - iotable_init(&scu_io_desc, 1); -} - -static void __init highbank_map_io(void) -{ - highbank_scu_map_io(); - highbank_lluart_map_io(); + scu_base_addr = ioremap(base, SZ_4K); } #define HB_JUMP_TABLE_PHYS(cpu) (0x40 + (0x10 * (cpu))) @@ -81,6 +67,7 @@ void highbank_set_cpu_jump(int cpu, void *jump_addr) } const static struct of_device_id irq_match[] = { + { .compatible = "arm,cortex-a15-gic", .data = gic_of_init, }, { .compatible = "arm,cortex-a9-gic", .data = gic_of_init, }, {} }; @@ -97,6 +84,9 @@ static void __init highbank_init_irq(void) { of_irq_init(irq_match); + if (of_find_compatible_node(NULL, NULL, "arm,cortex-a9")) + highbank_scu_map_io(); + #ifdef CONFIG_CACHE_L2X0 /* Enable PL310 L2 Cache controller */ highbank_smc1(0x102, 0x1); @@ -134,6 +124,9 @@ static void __init highbank_timer_init(void) sp804_clockevents_init(timer_base, irq, "timer0"); twd_local_timer_of_register(); + + arch_timer_of_register(); + arch_timer_sched_clock_init(); } static struct sys_timer highbank_timer = { @@ -143,26 +136,78 @@ static struct sys_timer highbank_timer = { static void highbank_power_off(void) { hignbank_set_pwr_shutdown(); - scu_power_mode(scu_base_addr, SCU_PM_POWEROFF); while (1) cpu_do_idle(); } +static int highbank_platform_notifier(struct notifier_block *nb, + unsigned long event, void *__dev) +{ + struct resource *res; + int reg = -1; + struct device *dev = __dev; + + if (event != BUS_NOTIFY_ADD_DEVICE) + return NOTIFY_DONE; + + if (of_device_is_compatible(dev->of_node, "calxeda,hb-ahci")) + reg = 0xc; + else if (of_device_is_compatible(dev->of_node, "calxeda,hb-sdhci")) + reg = 0x18; + else if (of_device_is_compatible(dev->of_node, "arm,pl330")) + reg = 0x20; + else if (of_device_is_compatible(dev->of_node, "calxeda,hb-xgmac")) { + res = platform_get_resource(to_platform_device(dev), + IORESOURCE_MEM, 0); + if (res) { + if (res->start == 0xfff50000) + reg = 0; + else if (res->start == 0xfff51000) + reg = 4; + } + } + + if (reg < 0) + return NOTIFY_DONE; + + if (of_property_read_bool(dev->of_node, "dma-coherent")) { + writel(0xff31, sregs_base + reg); + set_dma_ops(dev, &arm_coherent_dma_ops); + } else + writel(0, sregs_base + reg); + + return NOTIFY_OK; +} + +static struct notifier_block highbank_amba_nb = { + .notifier_call = highbank_platform_notifier, +}; + +static struct notifier_block highbank_platform_nb = { + .notifier_call = highbank_platform_notifier, +}; + static void __init highbank_init(void) { 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); of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); } static const char *highbank_match[] __initconst = { "calxeda,highbank", + "calxeda,ecx-2000", NULL, }; DT_MACHINE_START(HIGHBANK, "Highbank") - .map_io = highbank_map_io, + .smp = smp_ops(highbank_smp_ops), + .map_io = debug_ll_io_init, .init_irq = highbank_init_irq, .timer = &highbank_timer, .handle_irq = gic_handle_irq, |