518 lines
13 KiB
C
518 lines
13 KiB
C
/*
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* board-cm-t35.c (CompuLab CM-T35 module)
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*
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* Copyright (C) 2009 CompuLab, Ltd.
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* Author: Mike Rapoport <mike@compulab.co.il>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/input.h>
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#include <linux/input/matrix_keypad.h>
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#include <linux/delay.h>
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#include <linux/gpio.h>
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#include <linux/i2c/at24.h>
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#include <linux/i2c/twl4030.h>
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#include <linux/regulator/machine.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <plat/board.h>
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#include <plat/common.h>
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#include <plat/nand.h>
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#include <plat/gpmc.h>
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#include <plat/usb.h>
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#include <mach/hardware.h>
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#include "mux.h"
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#include "sdram-micron-mt46h32m32lf-6.h"
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#include "mmc-twl4030.h"
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#define CM_T35_GPIO_PENDOWN 57
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#define CM_T35_SMSC911X_CS 5
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#define CM_T35_SMSC911X_GPIO 163
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#define SB_T35_SMSC911X_CS 4
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#define SB_T35_SMSC911X_GPIO 65
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#define NAND_BLOCK_SIZE SZ_128K
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#define GPMC_CS0_BASE 0x60
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#define GPMC_CS0_BASE_ADDR (OMAP34XX_GPMC_VIRT + GPMC_CS0_BASE)
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#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
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#include <linux/smsc911x.h>
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static struct smsc911x_platform_config cm_t35_smsc911x_config = {
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.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
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.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
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.flags = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
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.phy_interface = PHY_INTERFACE_MODE_MII,
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};
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static struct resource cm_t35_smsc911x_resources[] = {
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{
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP_GPIO_IRQ(CM_T35_SMSC911X_GPIO),
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.end = OMAP_GPIO_IRQ(CM_T35_SMSC911X_GPIO),
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
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},
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};
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static struct platform_device cm_t35_smsc911x_device = {
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.name = "smsc911x",
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.id = 0,
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.num_resources = ARRAY_SIZE(cm_t35_smsc911x_resources),
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.resource = cm_t35_smsc911x_resources,
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.dev = {
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.platform_data = &cm_t35_smsc911x_config,
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},
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};
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static struct resource sb_t35_smsc911x_resources[] = {
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{
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP_GPIO_IRQ(SB_T35_SMSC911X_GPIO),
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.end = OMAP_GPIO_IRQ(SB_T35_SMSC911X_GPIO),
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
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},
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};
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static struct platform_device sb_t35_smsc911x_device = {
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.name = "smsc911x",
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.id = 1,
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.num_resources = ARRAY_SIZE(sb_t35_smsc911x_resources),
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.resource = sb_t35_smsc911x_resources,
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.dev = {
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.platform_data = &cm_t35_smsc911x_config,
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},
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};
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static void __init cm_t35_init_smsc911x(struct platform_device *dev,
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int cs, int irq_gpio)
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{
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unsigned long cs_mem_base;
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if (gpmc_cs_request(cs, SZ_16M, &cs_mem_base) < 0) {
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pr_err("CM-T35: Failed request for GPMC mem for smsc911x\n");
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return;
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}
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dev->resource[0].start = cs_mem_base + 0x0;
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dev->resource[0].end = cs_mem_base + 0xff;
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if ((gpio_request(irq_gpio, "ETH IRQ") == 0) &&
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(gpio_direction_input(irq_gpio) == 0)) {
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gpio_export(irq_gpio, 0);
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} else {
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pr_err("CM-T35: could not obtain gpio for SMSC911X IRQ\n");
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return;
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}
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platform_device_register(dev);
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}
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static void __init cm_t35_init_ethernet(void)
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{
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cm_t35_init_smsc911x(&cm_t35_smsc911x_device,
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CM_T35_SMSC911X_CS, CM_T35_SMSC911X_GPIO);
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cm_t35_init_smsc911x(&sb_t35_smsc911x_device,
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SB_T35_SMSC911X_CS, SB_T35_SMSC911X_GPIO);
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}
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#else
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static inline void __init cm_t35_init_ethernet(void) { return; }
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#endif
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#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
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#include <linux/leds.h>
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static struct gpio_led cm_t35_leds[] = {
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[0] = {
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.gpio = 186,
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.name = "cm-t35:green",
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.default_trigger = "heartbeat",
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.active_low = 0,
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},
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};
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static struct gpio_led_platform_data cm_t35_led_pdata = {
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.num_leds = ARRAY_SIZE(cm_t35_leds),
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.leds = cm_t35_leds,
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};
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static struct platform_device cm_t35_led_device = {
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.name = "leds-gpio",
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.id = -1,
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.dev = {
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.platform_data = &cm_t35_led_pdata,
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},
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};
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static void __init cm_t35_init_led(void)
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{
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platform_device_register(&cm_t35_led_device);
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}
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#else
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static inline void cm_t35_init_led(void) {}
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#endif
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#if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/nand.h>
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#include <linux/mtd/partitions.h>
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static struct mtd_partition cm_t35_nand_partitions[] = {
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{
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.name = "xloader",
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.offset = 0, /* Offset = 0x00000 */
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.size = 4 * NAND_BLOCK_SIZE,
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.mask_flags = MTD_WRITEABLE
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},
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{
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.name = "uboot",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
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.size = 15 * NAND_BLOCK_SIZE,
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},
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{
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.name = "uboot environment",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
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.size = 2 * NAND_BLOCK_SIZE,
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},
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{
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.name = "linux",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
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.size = 32 * NAND_BLOCK_SIZE,
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},
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{
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.name = "rootfs",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
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.size = MTDPART_SIZ_FULL,
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},
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};
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static struct omap_nand_platform_data cm_t35_nand_data = {
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.parts = cm_t35_nand_partitions,
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.nr_parts = ARRAY_SIZE(cm_t35_nand_partitions),
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.dma_channel = -1, /* disable DMA in OMAP NAND driver */
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.cs = 0,
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.gpmc_cs_baseaddr = (void __iomem *)GPMC_CS0_BASE_ADDR,
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.gpmc_baseaddr = (void __iomem *)OMAP34XX_GPMC_VIRT,
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};
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static struct resource cm_t35_nand_resource = {
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device cm_t35_nand_device = {
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.name = "omap2-nand",
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.id = -1,
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.num_resources = 1,
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.resource = &cm_t35_nand_resource,
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.dev = {
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.platform_data = &cm_t35_nand_data,
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},
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};
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static void __init cm_t35_init_nand(void)
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{
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if (platform_device_register(&cm_t35_nand_device) < 0)
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pr_err("CM-T35: Unable to register NAND device\n");
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}
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#else
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static inline void cm_t35_init_nand(void) {}
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#endif
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#if defined(CONFIG_TOUCHSCREEN_ADS7846) || \
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defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
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#include <linux/spi/spi.h>
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#include <linux/spi/ads7846.h>
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#include <plat/mcspi.h>
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static struct omap2_mcspi_device_config ads7846_mcspi_config = {
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.turbo_mode = 0,
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.single_channel = 1, /* 0: slave, 1: master */
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};
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static int ads7846_get_pendown_state(void)
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{
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return !gpio_get_value(CM_T35_GPIO_PENDOWN);
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}
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static struct ads7846_platform_data ads7846_config = {
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.x_max = 0x0fff,
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.y_max = 0x0fff,
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.x_plate_ohms = 180,
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.pressure_max = 255,
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.debounce_max = 10,
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.debounce_tol = 3,
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.debounce_rep = 1,
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.get_pendown_state = ads7846_get_pendown_state,
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.keep_vref_on = 1,
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};
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static struct spi_board_info cm_t35_spi_board_info[] __initdata = {
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{
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.modalias = "ads7846",
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.bus_num = 1,
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.chip_select = 0,
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.max_speed_hz = 1500000,
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.controller_data = &ads7846_mcspi_config,
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.irq = OMAP_GPIO_IRQ(CM_T35_GPIO_PENDOWN),
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.platform_data = &ads7846_config,
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},
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};
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static void __init cm_t35_init_ads7846(void)
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{
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if ((gpio_request(CM_T35_GPIO_PENDOWN, "ADS7846_PENDOWN") == 0) &&
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(gpio_direction_input(CM_T35_GPIO_PENDOWN) == 0)) {
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gpio_export(CM_T35_GPIO_PENDOWN, 0);
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} else {
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pr_err("CM-T35: could not obtain gpio for ADS7846_PENDOWN\n");
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return;
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}
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spi_register_board_info(cm_t35_spi_board_info,
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ARRAY_SIZE(cm_t35_spi_board_info));
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}
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#else
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static inline void cm_t35_init_ads7846(void) {}
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#endif
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static struct regulator_consumer_supply cm_t35_vmmc1_supply = {
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.supply = "vmmc",
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};
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static struct regulator_consumer_supply cm_t35_vsim_supply = {
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.supply = "vmmc_aux",
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};
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/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
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static struct regulator_init_data cm_t35_vmmc1 = {
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.constraints = {
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.min_uV = 1850000,
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.max_uV = 3150000,
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.valid_modes_mask = REGULATOR_MODE_NORMAL
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| REGULATOR_MODE_STANDBY,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_MODE
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| REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = 1,
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.consumer_supplies = &cm_t35_vmmc1_supply,
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};
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/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
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static struct regulator_init_data cm_t35_vsim = {
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.constraints = {
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.min_uV = 1800000,
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.max_uV = 3000000,
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.valid_modes_mask = REGULATOR_MODE_NORMAL
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| REGULATOR_MODE_STANDBY,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_MODE
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| REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = 1,
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.consumer_supplies = &cm_t35_vsim_supply,
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};
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static struct twl4030_usb_data cm_t35_usb_data = {
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.usb_mode = T2_USB_MODE_ULPI,
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};
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static int cm_t35_keymap[] = {
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KEY(0, 0, KEY_A), KEY(0, 1, KEY_B), KEY(0, 2, KEY_LEFT),
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KEY(1, 0, KEY_UP), KEY(1, 1, KEY_ENTER), KEY(1, 2, KEY_DOWN),
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KEY(2, 0, KEY_RIGHT), KEY(2, 1, KEY_C), KEY(2, 2, KEY_D),
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};
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static struct matrix_keymap_data cm_t35_keymap_data = {
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.keymap = cm_t35_keymap,
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.keymap_size = ARRAY_SIZE(cm_t35_keymap),
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};
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static struct twl4030_keypad_data cm_t35_kp_data = {
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.keymap_data = &cm_t35_keymap_data,
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.rows = 3,
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.cols = 3,
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.rep = 1,
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};
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static struct twl4030_hsmmc_info mmc[] = {
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{
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.mmc = 1,
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.wires = 4,
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.gpio_cd = -EINVAL,
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.gpio_wp = -EINVAL,
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},
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{
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.mmc = 2,
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.wires = 4,
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.transceiver = 1,
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.gpio_cd = -EINVAL,
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.gpio_wp = -EINVAL,
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.ocr_mask = 0x00100000, /* 3.3V */
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},
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{} /* Terminator */
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};
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static struct ehci_hcd_omap_platform_data ehci_pdata = {
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.port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
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.port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
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.port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
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.phy_reset = true,
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.reset_gpio_port[0] = -EINVAL,
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.reset_gpio_port[1] = -EINVAL,
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.reset_gpio_port[2] = -EINVAL
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};
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static int cm_t35_twl_gpio_setup(struct device *dev, unsigned gpio,
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unsigned ngpio)
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{
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int wlan_rst = gpio + 2;
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if ((gpio_request(wlan_rst, "WLAN RST") == 0) &&
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(gpio_direction_output(wlan_rst, 1) == 0)) {
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gpio_export(wlan_rst, 0);
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udelay(10);
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gpio_set_value(wlan_rst, 0);
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udelay(10);
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gpio_set_value(wlan_rst, 1);
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} else {
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pr_err("CM-T35: could not obtain gpio for WiFi reset\n");
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}
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/* gpio + 0 is "mmc0_cd" (input/IRQ) */
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mmc[0].gpio_cd = gpio + 0;
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twl4030_mmc_init(mmc);
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/* link regulators to MMC adapters */
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cm_t35_vmmc1_supply.dev = mmc[0].dev;
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cm_t35_vsim_supply.dev = mmc[0].dev;
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/* setup USB with proper PHY reset GPIOs */
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ehci_pdata.reset_gpio_port[0] = gpio + 6;
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ehci_pdata.reset_gpio_port[1] = gpio + 7;
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usb_ehci_init(&ehci_pdata);
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return 0;
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}
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static struct twl4030_gpio_platform_data cm_t35_gpio_data = {
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.gpio_base = OMAP_MAX_GPIO_LINES,
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.irq_base = TWL4030_GPIO_IRQ_BASE,
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.irq_end = TWL4030_GPIO_IRQ_END,
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.setup = cm_t35_twl_gpio_setup,
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};
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static struct twl4030_platform_data cm_t35_twldata = {
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.irq_base = TWL4030_IRQ_BASE,
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.irq_end = TWL4030_IRQ_END,
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/* platform_data for children goes here */
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.keypad = &cm_t35_kp_data,
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.usb = &cm_t35_usb_data,
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.gpio = &cm_t35_gpio_data,
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.vmmc1 = &cm_t35_vmmc1,
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.vsim = &cm_t35_vsim,
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};
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static struct i2c_board_info __initdata cm_t35_i2c_boardinfo[] = {
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{
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I2C_BOARD_INFO("tps65930", 0x48),
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.flags = I2C_CLIENT_WAKE,
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.irq = INT_34XX_SYS_NIRQ,
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.platform_data = &cm_t35_twldata,
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},
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};
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static void __init cm_t35_init_i2c(void)
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{
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omap_register_i2c_bus(1, 2600, cm_t35_i2c_boardinfo,
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ARRAY_SIZE(cm_t35_i2c_boardinfo));
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}
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static struct omap_board_config_kernel cm_t35_config[] __initdata = {
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};
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static void __init cm_t35_init_irq(void)
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{
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omap_board_config = cm_t35_config;
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omap_board_config_size = ARRAY_SIZE(cm_t35_config);
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omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
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mt46h32m32lf6_sdrc_params);
|
|
omap_init_irq();
|
|
omap_gpio_init();
|
|
}
|
|
|
|
static void __init cm_t35_map_io(void)
|
|
{
|
|
omap2_set_globals_343x();
|
|
omap2_map_common_io();
|
|
}
|
|
|
|
#ifdef CONFIG_OMAP_MUX
|
|
static struct omap_board_mux board_mux[] __initdata = {
|
|
{ .reg_offset = OMAP_MUX_TERMINATOR },
|
|
};
|
|
#else
|
|
#define board_mux NULL
|
|
#endif
|
|
|
|
static void __init cm_t35_init(void)
|
|
{
|
|
omap3_mux_init(board_mux, OMAP_PACKAGE_CUS);
|
|
omap_serial_init();
|
|
cm_t35_init_i2c();
|
|
cm_t35_init_nand();
|
|
cm_t35_init_ads7846();
|
|
cm_t35_init_ethernet();
|
|
cm_t35_init_led();
|
|
|
|
usb_musb_init();
|
|
|
|
omap_mux_init_signal("sys_nirq",
|
|
OMAP_WAKEUP_EN | OMAP_PIN_INPUT_PULLUP);
|
|
}
|
|
|
|
MACHINE_START(CM_T35, "Compulab CM-T35")
|
|
.phys_io = 0x48000000,
|
|
.io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
|
|
.boot_params = 0x80000100,
|
|
.map_io = cm_t35_map_io,
|
|
.init_irq = cm_t35_init_irq,
|
|
.init_machine = cm_t35_init,
|
|
.timer = &omap_timer,
|
|
MACHINE_END
|