diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c index 9f33cb21e7f3..6b393691d0e8 100644 --- a/arch/arm/mach-ixp4xx/common.c +++ b/arch/arm/mach-ixp4xx/common.c @@ -332,11 +332,27 @@ static struct platform_device *ixp46x_devices[] __initdata = { &ixp46x_i2c_controller }; +unsigned long ixp4xx_exp_bus_size; + void __init ixp4xx_sys_init(void) { + ixp4xx_exp_bus_size = SZ_16M; + if (cpu_is_ixp46x()) { + int region; + platform_add_devices(ixp46x_devices, ARRAY_SIZE(ixp46x_devices)); + + for (region = 0; region < 7; region++) { + if((*(IXP4XX_EXP_REG(0x4 * region)) & 0x200)) { + ixp4xx_exp_bus_size = SZ_32M; + break; + } + } } + + printk("IXP4xx: Using %uMiB expansion bus window size\n", + ixp4xx_exp_bus_size >> 20); } diff --git a/arch/arm/mach-ixp4xx/coyote-setup.c b/arch/arm/mach-ixp4xx/coyote-setup.c index 050c92768913..679594a73981 100644 --- a/arch/arm/mach-ixp4xx/coyote-setup.c +++ b/arch/arm/mach-ixp4xx/coyote-setup.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include @@ -30,8 +31,6 @@ static struct flash_platform_data coyote_flash_data = { }; static struct resource coyote_flash_resource = { - .start = COYOTE_FLASH_BASE, - .end = COYOTE_FLASH_BASE + COYOTE_FLASH_SIZE - 1, .flags = IORESOURCE_MEM, }; @@ -81,6 +80,11 @@ static struct platform_device *coyote_devices[] __initdata = { static void __init coyote_init(void) { + ixp4xx_sys_init(); + + coyote_flash_resource.start = IXP4XX_EXP_BUS_BASE(0); + coyote_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1; + *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE; *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0; @@ -91,8 +95,6 @@ static void __init coyote_init(void) coyote_uart_data[0].irq = IRQ_IXP4XX_UART1; } - - ixp4xx_sys_init(); platform_add_devices(coyote_devices, ARRAY_SIZE(coyote_devices)); } diff --git a/arch/arm/mach-ixp4xx/gtwx5715-setup.c b/arch/arm/mach-ixp4xx/gtwx5715-setup.c index 29a6d02fa851..038670489970 100644 --- a/arch/arm/mach-ixp4xx/gtwx5715-setup.c +++ b/arch/arm/mach-ixp4xx/gtwx5715-setup.c @@ -27,6 +27,7 @@ #include #include #include +#include #include #include @@ -106,11 +107,9 @@ static struct flash_platform_data gtwx5715_flash_data = { .width = 2, }; -static struct resource gtwx5715_flash_resource = { - .start = GTWX5715_FLASH_BASE, - .end = GTWX5715_FLASH_BASE + GTWX5715_FLASH_SIZE - 1, +static struct gtw5715_flash_resource = { .flags = IORESOURCE_MEM, -}; +} static struct platform_device gtwx5715_flash = { .name = "IXP4XX-Flash", @@ -129,6 +128,14 @@ static struct platform_device *gtwx5715_devices[] __initdata = { static void __init gtwx5715_init(void) { + ixp4xx_sys_init(); + + if (!flash_resource) + printk(KERN_ERR "Could not allocate flash resource\n"); + + gtwx5715_flash_resource.start = IXP4XX_EXP_BUS_BASE(0); + gtwx5715_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_8M - 1; + platform_add_devices(gtwx5715_devices, ARRAY_SIZE(gtwx5715_devices)); } diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c index 3a22d84e1047..c2e105c89c95 100644 --- a/arch/arm/mach-ixp4xx/ixdp425-setup.c +++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include @@ -30,8 +31,6 @@ static struct flash_platform_data ixdp425_flash_data = { }; static struct resource ixdp425_flash_resource = { - .start = IXDP425_FLASH_BASE, - .end = IXDP425_FLASH_BASE + IXDP425_FLASH_SIZE - 1, .flags = IORESOURCE_MEM, }; @@ -108,17 +107,13 @@ static struct platform_device *ixdp425_devices[] __initdata = { &ixdp425_uart }; - static void __init ixdp425_init(void) { ixp4xx_sys_init(); - /* - * IXP465 has 32MB window - */ - if (machine_is_ixdp465()) { - ixdp425_flash_resource.end += IXDP425_FLASH_SIZE; - } + ixdp425_flash_resource.start = IXP4XX_EXP_BUS_BASE(0); + ixdp425_flash_resource.end = + IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1; platform_add_devices(ixdp425_devices, ARRAY_SIZE(ixdp425_devices)); } diff --git a/arch/arm/mach-ixp4xx/nas100d-setup.c b/arch/arm/mach-ixp4xx/nas100d-setup.c index bde9648e7afc..49998a8bd4e8 100644 --- a/arch/arm/mach-ixp4xx/nas100d-setup.c +++ b/arch/arm/mach-ixp4xx/nas100d-setup.c @@ -26,8 +26,6 @@ static struct flash_platform_data nas100d_flash_data = { }; static struct resource nas100d_flash_resource = { - .start = NAS100D_FLASH_BASE, - .end = NAS100D_FLASH_BASE + NAS100D_FLASH_SIZE, .flags = IORESOURCE_MEM, }; @@ -115,6 +113,10 @@ static void __init nas100d_init(void) { ixp4xx_sys_init(); + nas100d_flash_resource.start = IXP4XX_EXP_BUS_BASE(0); + nas100d_flash_resource.end = + IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1; + pm_power_off = nas100d_power_off; platform_add_devices(nas100d_devices, ARRAY_SIZE(nas100d_devices)); diff --git a/include/asm-arm/arch-ixp4xx/coyote.h b/include/asm-arm/arch-ixp4xx/coyote.h index dd0c2d2d8503..7ac9ba2c035c 100644 --- a/include/asm-arm/arch-ixp4xx/coyote.h +++ b/include/asm-arm/arch-ixp4xx/coyote.h @@ -16,9 +16,6 @@ #error "Do not include this directly, instead #include " #endif -#define COYOTE_FLASH_BASE IXP4XX_EXP_BUS_CS0_BASE_PHYS -#define COYOTE_FLASH_SIZE IXP4XX_EXP_BUS_CSX_REGION_SIZE * 2 - /* PCI controller GPIO to IRQ pin mappings */ #define COYOTE_PCI_SLOT0_PIN 6 #define COYOTE_PCI_SLOT1_PIN 11 @@ -26,7 +23,7 @@ #define COYOTE_PCI_SLOT0_DEVID 14 #define COYOTE_PCI_SLOT1_DEVID 15 -#define COYOTE_IDE_BASE_PHYS IXP4XX_EXP_BUS_CS3_BASE_PHYS +#define COYOTE_IDE_BASE_PHYS IXP4XX_EXP_BUS_BASE(3) #define COYOTE_IDE_BASE_VIRT 0xFFFE1000 #define COYOTE_IDE_REGION_SIZE 0x1000 diff --git a/include/asm-arm/arch-ixp4xx/gtwx5715.h b/include/asm-arm/arch-ixp4xx/gtwx5715.h index fc460af70627..c3069d67c00e 100644 --- a/include/asm-arm/arch-ixp4xx/gtwx5715.h +++ b/include/asm-arm/arch-ixp4xx/gtwx5715.h @@ -57,10 +57,6 @@ #define GTWX5715_GPIO13_IRQ IRQ_IXP4XX_SW_INT1 #define GTWX5715_GPIO14_IRQ IRQ_IXP4XX_SW_INT2 - -#define GTWX5715_FLASH_BASE IXP4XX_EXP_BUS_CS0_BASE_PHYS -#define GTWX5715_FLASH_SIZE (0x00800000) - /* PCI controller GPIO to IRQ pin mappings INTA INTB diff --git a/include/asm-arm/arch-ixp4xx/ixdp425.h b/include/asm-arm/arch-ixp4xx/ixdp425.h index 7d21bf941379..3d3820d7ba09 100644 --- a/include/asm-arm/arch-ixp4xx/ixdp425.h +++ b/include/asm-arm/arch-ixp4xx/ixdp425.h @@ -16,9 +16,6 @@ #error "Do not include this directly, instead #include " #endif -#define IXDP425_FLASH_BASE IXP4XX_EXP_BUS_CS0_BASE_PHYS -#define IXDP425_FLASH_SIZE IXP4XX_EXP_BUS_CSX_REGION_SIZE - #define IXDP425_SDA_PIN 7 #define IXDP425_SCL_PIN 6 diff --git a/include/asm-arm/arch-ixp4xx/nas100d.h b/include/asm-arm/arch-ixp4xx/nas100d.h index ce7a86a98fc2..51ac0180427c 100644 --- a/include/asm-arm/arch-ixp4xx/nas100d.h +++ b/include/asm-arm/arch-ixp4xx/nas100d.h @@ -19,9 +19,6 @@ #error "Do not include this directly, instead #include " #endif -#define NAS100D_FLASH_BASE IXP4XX_EXP_BUS_CS0_BASE_PHYS -#define NAS100D_FLASH_SIZE IXP4XX_EXP_BUS_CSX_REGION_SIZE - #define NAS100D_SDA_PIN 6 #define NAS100D_SCL_PIN 5 diff --git a/include/asm-arm/arch-ixp4xx/nslu2.h b/include/asm-arm/arch-ixp4xx/nslu2.h index b8b347a559c7..4281838873ef 100644 --- a/include/asm-arm/arch-ixp4xx/nslu2.h +++ b/include/asm-arm/arch-ixp4xx/nslu2.h @@ -18,9 +18,6 @@ #error "Do not include this directly, instead #include " #endif -#define NSLU2_FLASH_BASE IXP4XX_EXP_BUS_CS0_BASE_PHYS -#define NSLU2_FLASH_SIZE IXP4XX_EXP_BUS_CSX_REGION_SIZE - #define NSLU2_SDA_PIN 7 #define NSLU2_SCL_PIN 6 diff --git a/include/asm-arm/arch-ixp4xx/platform.h b/include/asm-arm/arch-ixp4xx/platform.h index 6b77ed26be79..daf9790645ca 100644 --- a/include/asm-arm/arch-ixp4xx/platform.h +++ b/include/asm-arm/arch-ixp4xx/platform.h @@ -26,16 +26,17 @@ */ #define IXP4XX_EXP_BUS_BASE_PHYS (0x50000000) -#define IXP4XX_EXP_BUS_CSX_REGION_SIZE (0x01000000) +/* + * The expansion bus on the IXP4xx can be configured for either 16 or + * 32MB windows and the CS offset for each region changes based on the + * current configuration. This means that we cannot simply hardcode + * each offset. ixp4xx_sys_init() looks at the expansion bus configuration + * as setup by the bootloader to determine our window size. + */ +extern unsigned long ixp4xx_exp_bus_size; -#define IXP4XX_EXP_BUS_CS0_BASE_PHYS (IXP4XX_EXP_BUS_BASE_PHYS + 0x00000000) -#define IXP4XX_EXP_BUS_CS1_BASE_PHYS (IXP4XX_EXP_BUS_BASE_PHYS + 0x01000000) -#define IXP4XX_EXP_BUS_CS2_BASE_PHYS (IXP4XX_EXP_BUS_BASE_PHYS + 0x02000000) -#define IXP4XX_EXP_BUS_CS3_BASE_PHYS (IXP4XX_EXP_BUS_BASE_PHYS + 0x03000000) -#define IXP4XX_EXP_BUS_CS4_BASE_PHYS (IXP4XX_EXP_BUS_BASE_PHYS + 0x04000000) -#define IXP4XX_EXP_BUS_CS5_BASE_PHYS (IXP4XX_EXP_BUS_BASE_PHYS + 0x05000000) -#define IXP4XX_EXP_BUS_CS6_BASE_PHYS (IXP4XX_EXP_BUS_BASE_PHYS + 0x06000000) -#define IXP4XX_EXP_BUS_CS7_BASE_PHYS (IXP4XX_EXP_BUS_BASE_PHYS + 0x07000000) +#define IXP4XX_EXP_BUS_BASE(region)\ + (IXP4XX_EXP_BUS_BASE_PHYS + ((region) * ixp4xx_exp_bus_size)) #define IXP4XX_FLASH_WRITABLE (0x2) #define IXP4XX_FLASH_DEFAULT (0xbcd23c40)