diff options
Diffstat (limited to 'arch/arm/mach-davinci/devices-tnetv107x.c')
| -rw-r--r-- | arch/arm/mach-davinci/devices-tnetv107x.c | 320 |
1 files changed, 320 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/devices-tnetv107x.c b/arch/arm/mach-davinci/devices-tnetv107x.c new file mode 100644 index 00000000000..2718a3a90df --- /dev/null +++ b/arch/arm/mach-davinci/devices-tnetv107x.c @@ -0,0 +1,320 @@ +/* + * Texas Instruments TNETV107X SoC devices + * + * Copyright (C) 2010 Texas Instruments + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/dma-mapping.h> +#include <linux/clk.h> +#include <linux/slab.h> + +#include <mach/common.h> +#include <mach/irqs.h> +#include <mach/edma.h> +#include <mach/tnetv107x.h> + +#include "clock.h" + +/* Base addresses for on-chip devices */ +#define TNETV107X_TPCC_BASE 0x01c00000 +#define TNETV107X_TPTC0_BASE 0x01c10000 +#define TNETV107X_TPTC1_BASE 0x01c10400 +#define TNETV107X_WDOG_BASE 0x08086700 +#define TNETV107X_SDIO0_BASE 0x08088700 +#define TNETV107X_SDIO1_BASE 0x08088800 +#define TNETV107X_ASYNC_EMIF_CNTRL_BASE 0x08200000 +#define TNETV107X_ASYNC_EMIF_DATA_CE0_BASE 0x30000000 +#define TNETV107X_ASYNC_EMIF_DATA_CE1_BASE 0x40000000 +#define TNETV107X_ASYNC_EMIF_DATA_CE2_BASE 0x44000000 +#define TNETV107X_ASYNC_EMIF_DATA_CE3_BASE 0x48000000 + +/* TNETV107X specific EDMA3 information */ +#define EDMA_TNETV107X_NUM_DMACH 64 +#define EDMA_TNETV107X_NUM_TCC 64 +#define EDMA_TNETV107X_NUM_PARAMENTRY 128 +#define EDMA_TNETV107X_NUM_EVQUE 2 +#define EDMA_TNETV107X_NUM_TC 2 +#define EDMA_TNETV107X_CHMAP_EXIST 0 +#define EDMA_TNETV107X_NUM_REGIONS 4 +#define TNETV107X_DMACH2EVENT_MAP0 0x3C0CE000u +#define TNETV107X_DMACH2EVENT_MAP1 0x000FFFFFu + +#define TNETV107X_DMACH_SDIO0_RX 26 +#define TNETV107X_DMACH_SDIO0_TX 27 +#define TNETV107X_DMACH_SDIO1_RX 28 +#define TNETV107X_DMACH_SDIO1_TX 29 + +static const s8 edma_tc_mapping[][2] = { + /* event queue no TC no */ + { 0, 0 }, + { 1, 1 }, + { -1, -1 } +}; + +static const s8 edma_priority_mapping[][2] = { + /* event queue no Prio */ + { 0, 3 }, + { 1, 7 }, + { -1, -1 } +}; + +static struct edma_soc_info edma_cc0_info = { + .n_channel = EDMA_TNETV107X_NUM_DMACH, + .n_region = EDMA_TNETV107X_NUM_REGIONS, + .n_slot = EDMA_TNETV107X_NUM_PARAMENTRY, + .n_tc = EDMA_TNETV107X_NUM_TC, + .n_cc = 1, + .queue_tc_mapping = edma_tc_mapping, + .queue_priority_mapping = edma_priority_mapping, +}; + +static struct edma_soc_info *tnetv107x_edma_info[EDMA_MAX_CC] = { + &edma_cc0_info, +}; + +static struct resource edma_resources[] = { + { + .name = "edma_cc0", + .start = TNETV107X_TPCC_BASE, + .end = TNETV107X_TPCC_BASE + SZ_32K - 1, + .flags = IORESOURCE_MEM, + }, + { + .name = "edma_tc0", + .start = TNETV107X_TPTC0_BASE, + .end = TNETV107X_TPTC0_BASE + SZ_1K - 1, + .flags = IORESOURCE_MEM, + }, + { + .name = "edma_tc1", + .start = TNETV107X_TPTC1_BASE, + .end = TNETV107X_TPTC1_BASE + SZ_1K - 1, + .flags = IORESOURCE_MEM, + }, + { + .name = "edma0", + .start = IRQ_TNETV107X_TPCC, + .flags = IORESOURCE_IRQ, + }, + { + .name = "edma0_err", + .start = IRQ_TNETV107X_TPCC_ERR, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device edma_device = { + .name = "edma", + .id = -1, + .num_resources = ARRAY_SIZE(edma_resources), + .resource = edma_resources, + .dev.platform_data = tnetv107x_edma_info, +}; + +static struct plat_serial8250_port serial_data[] = { + { + .mapbase = TNETV107X_UART0_BASE, + .irq = IRQ_TNETV107X_UART0, + .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | + UPF_FIXED_TYPE | UPF_IOREMAP, + .type = PORT_AR7, + .iotype = UPIO_MEM32, + .regshift = 2, + }, + { + .mapbase = TNETV107X_UART1_BASE, + .irq = IRQ_TNETV107X_UART1, + .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | + UPF_FIXED_TYPE | UPF_IOREMAP, + .type = PORT_AR7, + .iotype = UPIO_MEM32, + .regshift = 2, + }, + { + .mapbase = TNETV107X_UART2_BASE, + .irq = IRQ_TNETV107X_UART2, + .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | + UPF_FIXED_TYPE | UPF_IOREMAP, + .type = PORT_AR7, + .iotype = UPIO_MEM32, + .regshift = 2, + }, + { + .flags = 0, + }, +}; + +struct platform_device tnetv107x_serial_device = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM, + .dev.platform_data = serial_data, +}; + +static struct resource mmc0_resources[] = { + { /* Memory mapped registers */ + .start = TNETV107X_SDIO0_BASE, + .end = TNETV107X_SDIO0_BASE + 0x0ff, + .flags = IORESOURCE_MEM + }, + { /* MMC interrupt */ + .start = IRQ_TNETV107X_MMC0, + .flags = IORESOURCE_IRQ + }, + { /* SDIO interrupt */ + .start = IRQ_TNETV107X_SDIO0, + .flags = IORESOURCE_IRQ + }, + { /* DMA RX */ + .start = EDMA_CTLR_CHAN(0, TNETV107X_DMACH_SDIO0_RX), + .flags = IORESOURCE_DMA + }, + { /* DMA TX */ + .start = EDMA_CTLR_CHAN(0, TNETV107X_DMACH_SDIO0_TX), + .flags = IORESOURCE_DMA + }, +}; + +static struct resource mmc1_resources[] = { + { /* Memory mapped registers */ + .start = TNETV107X_SDIO1_BASE, + .end = TNETV107X_SDIO1_BASE + 0x0ff, + .flags = IORESOURCE_MEM + }, + { /* MMC interrupt */ + .start = IRQ_TNETV107X_MMC1, + .flags = IORESOURCE_IRQ + }, + { /* SDIO interrupt */ + .start = IRQ_TNETV107X_SDIO1, + .flags = IORESOURCE_IRQ + }, + { /* DMA RX */ + .start = EDMA_CTLR_CHAN(0, TNETV107X_DMACH_SDIO1_RX), + .flags = IORESOURCE_DMA + }, + { /* DMA TX */ + .start = EDMA_CTLR_CHAN(0, TNETV107X_DMACH_SDIO1_TX), + .flags = IORESOURCE_DMA + }, +}; + +static u64 mmc0_dma_mask = DMA_BIT_MASK(32); +static u64 mmc1_dma_mask = DMA_BIT_MASK(32); + +static struct platform_device mmc_devices[2] = { + { + .name = "davinci_mmc", + .id = 0, + .dev = { + .dma_mask = &mmc0_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .num_resources = ARRAY_SIZE(mmc0_resources), + .resource = mmc0_resources + }, + { + .name = "davinci_mmc", + .id = 1, + .dev = { + .dma_mask = &mmc1_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .num_resources = ARRAY_SIZE(mmc1_resources), + .resource = mmc1_resources + }, +}; + +static const u32 emif_windows[] = { + TNETV107X_ASYNC_EMIF_DATA_CE0_BASE, TNETV107X_ASYNC_EMIF_DATA_CE1_BASE, + TNETV107X_ASYNC_EMIF_DATA_CE2_BASE, TNETV107X_ASYNC_EMIF_DATA_CE3_BASE, +}; + +static const u32 emif_window_sizes[] = { SZ_256M, SZ_64M, SZ_64M, SZ_64M }; + +static struct resource wdt_resources[] = { + { + .start = TNETV107X_WDOG_BASE, + .end = TNETV107X_WDOG_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, +}; + +struct platform_device tnetv107x_wdt_device = { + .name = "tnetv107x_wdt", + .id = 0, + .num_resources = ARRAY_SIZE(wdt_resources), + .resource = wdt_resources, +}; + +static int __init nand_init(int chipsel, struct davinci_nand_pdata *data) +{ + struct resource res[2]; + struct platform_device *pdev; + u32 range; + int ret; + + /* Figure out the resource range from the ale/cle masks */ + range = max(data->mask_cle, data->mask_ale); + range = PAGE_ALIGN(range + 4) - 1; + + if (range >= emif_window_sizes[chipsel]) + return -EINVAL; + + pdev = kzalloc(sizeof(*pdev), GFP_KERNEL); + if (!pdev) + return -ENOMEM; + + pdev->name = "davinci_nand"; + pdev->id = chipsel; + pdev->dev.platform_data = data; + + memset(res, 0, sizeof(res)); + + res[0].start = emif_windows[chipsel]; + res[0].end = res[0].start + range; + res[0].flags = IORESOURCE_MEM; + + res[1].start = TNETV107X_ASYNC_EMIF_CNTRL_BASE; + res[1].end = res[1].start + SZ_4K - 1; + res[1].flags = IORESOURCE_MEM; + + ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res)); + if (ret < 0) { + kfree(pdev); + return ret; + } + + return platform_device_register(pdev); +} + +void __init tnetv107x_devices_init(struct tnetv107x_device_info *info) +{ + int i; + + platform_device_register(&edma_device); + platform_device_register(&tnetv107x_wdt_device); + + if (info->serial_config) + davinci_serial_init(info->serial_config); + + for (i = 0; i < 2; i++) + if (info->mmc_config[i]) { + mmc_devices[i].dev.platform_data = info->mmc_config[i]; + platform_device_register(&mmc_devices[i]); + } + + for (i = 0; i < 4; i++) + if (info->nand_config[i]) + nand_init(i, info->nand_config[i]); +} |