diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-iop13xx/setup.c | 217 |
1 files changed, 214 insertions, 3 deletions
diff --git a/arch/arm/mach-iop13xx/setup.c b/arch/arm/mach-iop13xx/setup.c index bc4871553f6..bfe0c87e339 100644 --- a/arch/arm/mach-iop13xx/setup.c +++ b/arch/arm/mach-iop13xx/setup.c @@ -25,6 +25,7 @@ #include <asm/hardware.h> #include <asm/irq.h> #include <asm/io.h> +#include <asm/hardware/iop_adma.h> #define IOP13XX_UART_XTAL 33334000 #define IOP13XX_SETUP_DEBUG 0 @@ -236,19 +237,143 @@ static unsigned long iq8134x_probe_flash_size(void) } #endif +/* ADMA Channels */ +static struct resource iop13xx_adma_0_resources[] = { + [0] = { + .start = IOP13XX_ADMA_PHYS_BASE(0), + .end = IOP13XX_ADMA_UPPER_PA(0), + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_IOP13XX_ADMA0_EOT, + .end = IRQ_IOP13XX_ADMA0_EOT, + .flags = IORESOURCE_IRQ + }, + [2] = { + .start = IRQ_IOP13XX_ADMA0_EOC, + .end = IRQ_IOP13XX_ADMA0_EOC, + .flags = IORESOURCE_IRQ + }, + [3] = { + .start = IRQ_IOP13XX_ADMA0_ERR, + .end = IRQ_IOP13XX_ADMA0_ERR, + .flags = IORESOURCE_IRQ + } +}; + +static struct resource iop13xx_adma_1_resources[] = { + [0] = { + .start = IOP13XX_ADMA_PHYS_BASE(1), + .end = IOP13XX_ADMA_UPPER_PA(1), + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_IOP13XX_ADMA1_EOT, + .end = IRQ_IOP13XX_ADMA1_EOT, + .flags = IORESOURCE_IRQ + }, + [2] = { + .start = IRQ_IOP13XX_ADMA1_EOC, + .end = IRQ_IOP13XX_ADMA1_EOC, + .flags = IORESOURCE_IRQ + }, + [3] = { + .start = IRQ_IOP13XX_ADMA1_ERR, + .end = IRQ_IOP13XX_ADMA1_ERR, + .flags = IORESOURCE_IRQ + } +}; + +static struct resource iop13xx_adma_2_resources[] = { + [0] = { + .start = IOP13XX_ADMA_PHYS_BASE(2), + .end = IOP13XX_ADMA_UPPER_PA(2), + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_IOP13XX_ADMA2_EOT, + .end = IRQ_IOP13XX_ADMA2_EOT, + .flags = IORESOURCE_IRQ + }, + [2] = { + .start = IRQ_IOP13XX_ADMA2_EOC, + .end = IRQ_IOP13XX_ADMA2_EOC, + .flags = IORESOURCE_IRQ + }, + [3] = { + .start = IRQ_IOP13XX_ADMA2_ERR, + .end = IRQ_IOP13XX_ADMA2_ERR, + .flags = IORESOURCE_IRQ + } +}; + +static u64 iop13xx_adma_dmamask = DMA_64BIT_MASK; +static struct iop_adma_platform_data iop13xx_adma_0_data = { + .hw_id = 0, + .pool_size = PAGE_SIZE, +}; + +static struct iop_adma_platform_data iop13xx_adma_1_data = { + .hw_id = 1, + .pool_size = PAGE_SIZE, +}; + +static struct iop_adma_platform_data iop13xx_adma_2_data = { + .hw_id = 2, + .pool_size = PAGE_SIZE, +}; + +/* The ids are fixed up later in iop13xx_platform_init */ +static struct platform_device iop13xx_adma_0_channel = { + .name = "iop-adma", + .id = 0, + .num_resources = 4, + .resource = iop13xx_adma_0_resources, + .dev = { + .dma_mask = &iop13xx_adma_dmamask, + .coherent_dma_mask = DMA_64BIT_MASK, + .platform_data = (void *) &iop13xx_adma_0_data, + }, +}; + +static struct platform_device iop13xx_adma_1_channel = { + .name = "iop-adma", + .id = 0, + .num_resources = 4, + .resource = iop13xx_adma_1_resources, + .dev = { + .dma_mask = &iop13xx_adma_dmamask, + .coherent_dma_mask = DMA_64BIT_MASK, + .platform_data = (void *) &iop13xx_adma_1_data, + }, +}; + +static struct platform_device iop13xx_adma_2_channel = { + .name = "iop-adma", + .id = 0, + .num_resources = 4, + .resource = iop13xx_adma_2_resources, + .dev = { + .dma_mask = &iop13xx_adma_dmamask, + .coherent_dma_mask = DMA_64BIT_MASK, + .platform_data = (void *) &iop13xx_adma_2_data, + }, +}; + void __init iop13xx_map_io(void) { /* Initialize the Static Page Table maps */ iotable_init(iop13xx_std_desc, ARRAY_SIZE(iop13xx_std_desc)); } -static int init_uart = 0; -static int init_i2c = 0; +static int init_uart; +static int init_i2c; +static int init_adma; void __init iop13xx_platform_init(void) { int i; - u32 uart_idx, i2c_idx, plat_idx; + u32 uart_idx, i2c_idx, adma_idx, plat_idx; struct platform_device *iop13xx_devices[IQ81340_MAX_PLAT_DEVICES]; /* set the bases so we can read the device id */ @@ -294,6 +419,12 @@ void __init iop13xx_platform_init(void) } } + if (init_adma == IOP13XX_INIT_ADMA_DEFAULT) { + init_adma |= IOP13XX_INIT_ADMA_0; + init_adma |= IOP13XX_INIT_ADMA_1; + init_adma |= IOP13XX_INIT_ADMA_2; + } + plat_idx = 0; uart_idx = 0; i2c_idx = 0; @@ -332,6 +463,56 @@ void __init iop13xx_platform_init(void) } } + /* initialize adma channel ids and capabilities */ + adma_idx = 0; + for (i = 0; i < IQ81340_NUM_ADMA; i++) { + struct iop_adma_platform_data *plat_data; + if ((init_adma & (1 << i)) && IOP13XX_SETUP_DEBUG) + printk(KERN_INFO + "Adding adma%d to platform device list\n", i); + switch (init_adma & (1 << i)) { + case IOP13XX_INIT_ADMA_0: + iop13xx_adma_0_channel.id = adma_idx++; + iop13xx_devices[plat_idx++] = &iop13xx_adma_0_channel; + plat_data = &iop13xx_adma_0_data; + dma_cap_set(DMA_MEMCPY, plat_data->cap_mask); + dma_cap_set(DMA_XOR, plat_data->cap_mask); + dma_cap_set(DMA_DUAL_XOR, plat_data->cap_mask); + dma_cap_set(DMA_ZERO_SUM, plat_data->cap_mask); + dma_cap_set(DMA_MEMSET, plat_data->cap_mask); + dma_cap_set(DMA_MEMCPY_CRC32C, plat_data->cap_mask); + dma_cap_set(DMA_INTERRUPT, plat_data->cap_mask); + break; + case IOP13XX_INIT_ADMA_1: + iop13xx_adma_1_channel.id = adma_idx++; + iop13xx_devices[plat_idx++] = &iop13xx_adma_1_channel; + plat_data = &iop13xx_adma_1_data; + dma_cap_set(DMA_MEMCPY, plat_data->cap_mask); + dma_cap_set(DMA_XOR, plat_data->cap_mask); + dma_cap_set(DMA_DUAL_XOR, plat_data->cap_mask); + dma_cap_set(DMA_ZERO_SUM, plat_data->cap_mask); + dma_cap_set(DMA_MEMSET, plat_data->cap_mask); + dma_cap_set(DMA_MEMCPY_CRC32C, plat_data->cap_mask); + dma_cap_set(DMA_INTERRUPT, plat_data->cap_mask); + break; + case IOP13XX_INIT_ADMA_2: + iop13xx_adma_2_channel.id = adma_idx++; + iop13xx_devices[plat_idx++] = &iop13xx_adma_2_channel; + plat_data = &iop13xx_adma_2_data; + dma_cap_set(DMA_MEMCPY, plat_data->cap_mask); + dma_cap_set(DMA_XOR, plat_data->cap_mask); + dma_cap_set(DMA_DUAL_XOR, plat_data->cap_mask); + dma_cap_set(DMA_ZERO_SUM, plat_data->cap_mask); + dma_cap_set(DMA_MEMSET, plat_data->cap_mask); + dma_cap_set(DMA_MEMCPY_CRC32C, plat_data->cap_mask); + dma_cap_set(DMA_INTERRUPT, plat_data->cap_mask); + dma_cap_set(DMA_PQ_XOR, plat_data->cap_mask); + dma_cap_set(DMA_PQ_UPDATE, plat_data->cap_mask); + dma_cap_set(DMA_PQ_ZERO_SUM, plat_data->cap_mask); + break; + } + } + #ifdef CONFIG_MTD_PHYSMAP iq8134x_flash_resource.end = iq8134x_flash_resource.start + iq8134x_probe_flash_size() - 1; @@ -399,5 +580,35 @@ static int __init iop13xx_init_i2c_setup(char *str) return 1; } +static int __init iop13xx_init_adma_setup(char *str) +{ + if (str) { + while (*str != '\0') { + switch (*str) { + case '0': + init_adma |= IOP13XX_INIT_ADMA_0; + break; + case '1': + init_adma |= IOP13XX_INIT_ADMA_1; + break; + case '2': + init_adma |= IOP13XX_INIT_ADMA_2; + break; + case ',': + case '=': + break; + default: + PRINTK("\"iop13xx_init_adma\" malformed" + " at character: \'%c\'", *str); + *(str + 1) = '\0'; + init_adma = IOP13XX_INIT_ADMA_DEFAULT; + } + str++; + } + } + return 1; +} + +__setup("iop13xx_init_adma", iop13xx_init_adma_setup); __setup("iop13xx_init_uart", iop13xx_init_uart_setup); __setup("iop13xx_init_i2c", iop13xx_init_i2c_setup); |