| /* |
| * 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_TSC_BASE 0x08088500 |
| #define TNETV107X_SDIO0_BASE 0x08088700 |
| #define TNETV107X_SDIO1_BASE 0x08088800 |
| #define TNETV107X_KEYPAD_BASE 0x08088a00 |
| #define TNETV107X_SSP_BASE 0x08088c00 |
| #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, |
| .default_queue = EVENTQ_1, |
| }; |
| |
| 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 = "dm6441-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 = "dm6441-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); |
| } |
| |
| static struct resource keypad_resources[] = { |
| { |
| .start = TNETV107X_KEYPAD_BASE, |
| .end = TNETV107X_KEYPAD_BASE + 0xff, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = IRQ_TNETV107X_KEYPAD, |
| .flags = IORESOURCE_IRQ, |
| .name = "press", |
| }, |
| { |
| .start = IRQ_TNETV107X_KEYPAD_FREE, |
| .flags = IORESOURCE_IRQ, |
| .name = "release", |
| }, |
| }; |
| |
| static struct platform_device keypad_device = { |
| .name = "tnetv107x-keypad", |
| .num_resources = ARRAY_SIZE(keypad_resources), |
| .resource = keypad_resources, |
| }; |
| |
| static struct resource tsc_resources[] = { |
| { |
| .start = TNETV107X_TSC_BASE, |
| .end = TNETV107X_TSC_BASE + 0xff, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = IRQ_TNETV107X_TSC, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct platform_device tsc_device = { |
| .name = "tnetv107x-ts", |
| .num_resources = ARRAY_SIZE(tsc_resources), |
| .resource = tsc_resources, |
| }; |
| |
| static struct resource ssp_resources[] = { |
| { |
| .start = TNETV107X_SSP_BASE, |
| .end = TNETV107X_SSP_BASE + 0x1ff, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = IRQ_TNETV107X_SSP, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct platform_device ssp_device = { |
| .name = "ti-ssp", |
| .id = -1, |
| .num_resources = ARRAY_SIZE(ssp_resources), |
| .resource = ssp_resources, |
| }; |
| |
| void __init tnetv107x_devices_init(struct tnetv107x_device_info *info) |
| { |
| int i, error; |
| struct clk *tsc_clk; |
| |
| /* |
| * The reset defaults for tnetv107x tsc clock divider is set too high. |
| * This forces the clock down to a range that allows the ADC to |
| * complete sample conversion in time. |
| */ |
| tsc_clk = clk_get(NULL, "sys_tsc_clk"); |
| if (!IS_ERR(tsc_clk)) { |
| error = clk_set_rate(tsc_clk, 5000000); |
| WARN_ON(error < 0); |
| clk_put(tsc_clk); |
| } |
| |
| platform_device_register(&edma_device); |
| platform_device_register(&tnetv107x_wdt_device); |
| platform_device_register(&tsc_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]); |
| |
| if (info->keypad_config) { |
| keypad_device.dev.platform_data = info->keypad_config; |
| platform_device_register(&keypad_device); |
| } |
| |
| if (info->ssp_config) { |
| ssp_device.dev.platform_data = info->ssp_config; |
| platform_device_register(&ssp_device); |
| } |
| } |