diff options
Diffstat (limited to 'arch/arm/mach-vexpress/v2m.c')
-rw-r--r-- | arch/arm/mach-vexpress/v2m.c | 97 |
1 files changed, 88 insertions, 9 deletions
diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c index a9ed3428a2f..ba46e8e0743 100644 --- a/arch/arm/mach-vexpress/v2m.c +++ b/arch/arm/mach-vexpress/v2m.c @@ -7,19 +7,24 @@ #include <linux/io.h> #include <linux/init.h> #include <linux/platform_device.h> +#include <linux/ata_platform.h> #include <linux/smsc911x.h> #include <linux/spinlock.h> #include <linux/sysdev.h> #include <linux/usb/isp1760.h> #include <linux/clkdev.h> +#include <asm/mach-types.h> #include <asm/sizes.h> +#include <asm/mach/arch.h> #include <asm/mach/flash.h> #include <asm/mach/map.h> #include <asm/mach/time.h> #include <asm/hardware/arm_timer.h> #include <asm/hardware/timer-sp.h> +#include <asm/hardware/sp810.h> +#include <mach/ct-ca9x4.h> #include <mach/motherboard.h> #include <plat/sched_clock.h> @@ -41,16 +46,21 @@ static struct map_desc v2m_io_desc[] __initdata = { }, }; -void __init v2m_map_io(struct map_desc *tile, size_t num) +static void __init v2m_init_early(void) { - iotable_init(v2m_io_desc, ARRAY_SIZE(v2m_io_desc)); - iotable_init(tile, num); + ct_desc->init_early(); + versatile_sched_clock_init(MMIO_P2V(V2M_SYS_24MHZ), 24000000); } - static void __init v2m_timer_init(void) { - versatile_sched_clock_init(MMIO_P2V(V2M_SYS_24MHZ), 24000000); + u32 scctrl; + + /* Select 1MHz TIMCLK as the reference clock for SP804 timers */ + scctrl = readl(MMIO_P2V(V2M_SYSCTL + SCCTRL)); + scctrl |= SCCTRL_TIMEREN0SEL_TIMCLK; + scctrl |= SCCTRL_TIMEREN1SEL_TIMCLK; + writel(scctrl, MMIO_P2V(V2M_SYSCTL + SCCTRL)); writel(0, MMIO_P2V(V2M_TIMER0) + TIMER_CTRL); writel(0, MMIO_P2V(V2M_TIMER1) + TIMER_CTRL); @@ -59,7 +69,7 @@ static void __init v2m_timer_init(void) sp804_clockevents_init(MMIO_P2V(V2M_TIMER0), IRQ_V2M_TIMER0); } -struct sys_timer v2m_timer = { +static struct sys_timer v2m_timer = { .init = v2m_timer_init, }; @@ -240,6 +250,29 @@ static struct platform_device v2m_flash_device = { .dev.platform_data = &v2m_flash_data, }; +static struct pata_platform_info v2m_pata_data = { + .ioport_shift = 2, +}; + +static struct resource v2m_pata_resources[] = { + { + .start = V2M_CF, + .end = V2M_CF + 0xff, + .flags = IORESOURCE_MEM, + }, { + .start = V2M_CF + 0x100, + .end = V2M_CF + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device v2m_cf_device = { + .name = "pata_platform", + .id = -1, + .resource = v2m_pata_resources, + .num_resources = ARRAY_SIZE(v2m_pata_resources), + .dev.platform_data = &v2m_pata_data, +}; static unsigned int v2m_mmci_status(struct device *dev) { @@ -345,7 +378,44 @@ static void v2m_restart(char str, const char *cmd) printk(KERN_EMERG "Unable to reboot\n"); } -static int __init v2m_init(void) +struct ct_desc *ct_desc; + +static struct ct_desc *ct_descs[] __initdata = { +#ifdef CONFIG_ARCH_VEXPRESS_CA9X4 + &ct_ca9x4_desc, +#endif +}; + +static void __init v2m_populate_ct_desc(void) +{ + int i; + u32 current_tile_id; + + ct_desc = NULL; + current_tile_id = readl(MMIO_P2V(V2M_SYS_PROCID0)) & V2M_CT_ID_MASK; + + for (i = 0; i < ARRAY_SIZE(ct_descs) && !ct_desc; ++i) + if (ct_descs[i]->id == current_tile_id) + ct_desc = ct_descs[i]; + + if (!ct_desc) + panic("vexpress: failed to populate core tile description " + "for tile ID 0x%8x\n", current_tile_id); +} + +static void __init v2m_map_io(void) +{ + iotable_init(v2m_io_desc, ARRAY_SIZE(v2m_io_desc)); + v2m_populate_ct_desc(); + ct_desc->map_io(); +} + +static void __init v2m_init_irq(void) +{ + ct_desc->init_irq(); +} + +static void __init v2m_init(void) { int i; @@ -354,6 +424,7 @@ static int __init v2m_init(void) platform_device_register(&v2m_pcie_i2c_device); platform_device_register(&v2m_ddc_i2c_device); platform_device_register(&v2m_flash_device); + platform_device_register(&v2m_cf_device); platform_device_register(&v2m_eth_device); platform_device_register(&v2m_usb_device); @@ -363,6 +434,14 @@ static int __init v2m_init(void) pm_power_off = v2m_power_off; arm_pm_restart = v2m_restart; - return 0; + ct_desc->init_tile(); } -arch_initcall(v2m_init); + +MACHINE_START(VEXPRESS, "ARM-Versatile Express") + .boot_params = PLAT_PHYS_OFFSET + 0x00000100, + .map_io = v2m_map_io, + .init_early = v2m_init_early, + .init_irq = v2m_init_irq, + .timer = &v2m_timer, + .init_machine = v2m_init, +MACHINE_END |