diff options
Diffstat (limited to 'arch/arm/mach-integrator')
| -rw-r--r-- | arch/arm/mach-integrator/integrator_cp.c | 50 |
1 files changed, 33 insertions, 17 deletions
diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c index 9194a4f3339c..72202108bd71 100644 --- a/arch/arm/mach-integrator/integrator_cp.c +++ b/arch/arm/mach-integrator/integrator_cp.c @@ -52,11 +52,13 @@ #include "common.h" +/* Base address to the CP controller */ +static void __iomem *intcp_con_base; + #define INTCP_PA_FLASH_BASE 0x24000000 #define INTCP_PA_CLCD_BASE 0xc0000000 -#define INTCP_VA_CTRL_BASE __io_address(INTEGRATOR_CP_CTL_BASE) #define INTCP_FLASHPROG 0x04 #define CINTEGRATOR_FLASHPROG_FLVPPEN (1 << 0) #define CINTEGRATOR_FLASHPROG_FLWREN (1 << 1) @@ -127,11 +129,6 @@ static struct map_desc intcp_io_desc[] __initdata = { .pfn = __phys_to_pfn(INTEGRATOR_CP_SIC_BASE), .length = SZ_4K, .type = MT_DEVICE - }, { - .virtual = IO_ADDRESS(INTEGRATOR_CP_CTL_BASE), - .pfn = __phys_to_pfn(INTEGRATOR_CP_CTL_BASE), - .length = SZ_4K, - .type = MT_DEVICE } }; @@ -147,9 +144,9 @@ static int intcp_flash_init(struct platform_device *dev) { u32 val; - val = readl(INTCP_VA_CTRL_BASE + INTCP_FLASHPROG); + val = readl(intcp_con_base + INTCP_FLASHPROG); val |= CINTEGRATOR_FLASHPROG_FLWREN; - writel(val, INTCP_VA_CTRL_BASE + INTCP_FLASHPROG); + writel(val, intcp_con_base + INTCP_FLASHPROG); return 0; } @@ -158,21 +155,21 @@ static void intcp_flash_exit(struct platform_device *dev) { u32 val; - val = readl(INTCP_VA_CTRL_BASE + INTCP_FLASHPROG); + val = readl(intcp_con_base + INTCP_FLASHPROG); val &= ~(CINTEGRATOR_FLASHPROG_FLVPPEN|CINTEGRATOR_FLASHPROG_FLWREN); - writel(val, INTCP_VA_CTRL_BASE + INTCP_FLASHPROG); + writel(val, intcp_con_base + INTCP_FLASHPROG); } static void intcp_flash_set_vpp(struct platform_device *pdev, int on) { u32 val; - val = readl(INTCP_VA_CTRL_BASE + INTCP_FLASHPROG); + val = readl(intcp_con_base + INTCP_FLASHPROG); if (on) val |= CINTEGRATOR_FLASHPROG_FLVPPEN; else val &= ~CINTEGRATOR_FLASHPROG_FLVPPEN; - writel(val, INTCP_VA_CTRL_BASE + INTCP_FLASHPROG); + writel(val, intcp_con_base + INTCP_FLASHPROG); } static struct physmap_flash_data intcp_flash_data = { @@ -191,7 +188,7 @@ static struct physmap_flash_data intcp_flash_data = { static unsigned int mmc_status(struct device *dev) { unsigned int status = readl(__io_address(0xca000000 + 4)); - writel(8, __io_address(INTEGRATOR_CP_CTL_BASE + 8)); + writel(8, intcp_con_base + 8); return status & 8; } @@ -337,9 +334,6 @@ static struct of_dev_auxdata intcp_auxdata_lookup[] __initdata = { { /* sentinel */ }, }; -/* Base address to the CP controller */ -static void __iomem *intcp_con_base; - static void __init intcp_init_of(void) { struct device_node *root; @@ -418,6 +412,28 @@ MACHINE_END #ifdef CONFIG_ATAGS /* + * For the ATAG boot some static mappings are needed. This will + * go away with the ATAG support down the road. + */ + +static struct map_desc intcp_io_desc_atag[] __initdata = { + { + .virtual = IO_ADDRESS(INTEGRATOR_CP_CTL_BASE), + .pfn = __phys_to_pfn(INTEGRATOR_CP_CTL_BASE), + .length = SZ_4K, + .type = MT_DEVICE + }, +}; + +static void __init intcp_map_io_atag(void) +{ + iotable_init(intcp_io_desc_atag, ARRAY_SIZE(intcp_io_desc_atag)); + intcp_con_base = __io_address(INTEGRATOR_CP_CTL_BASE); + intcp_map_io(); +} + + +/* * This is where non-devicetree initialization code is collected and stashed * for eventual deletion. */ @@ -556,7 +572,7 @@ MACHINE_START(CINTEGRATOR, "ARM-IntegratorCP") /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ .atag_offset = 0x100, .reserve = integrator_reserve, - .map_io = intcp_map_io, + .map_io = intcp_map_io_atag, .nr_irqs = NR_IRQS_INTEGRATOR_CP, .init_early = intcp_init_early, .init_irq = intcp_init_irq, |