295 lines
7.4 KiB
C
295 lines
7.4 KiB
C
/*
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* linux/arch/arm/mach-omap2/board-cm-t3517.c
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*
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* Support for the CompuLab CM-T3517 modules
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*
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* Copyright (C) 2010 CompuLab, Ltd.
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* Author: Igor Grinberg <grinberg@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/delay.h>
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#include <linux/gpio.h>
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#include <linux/leds.h>
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#include <linux/rtc-v3020.h>
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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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#include <linux/can/platform/ti_hecc.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/control.h>
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#include <plat/usb.h>
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#include <plat/nand.h>
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#include <plat/gpmc.h>
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#include <mach/am35xx.h>
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#include "mux.h"
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#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
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static struct gpio_led cm_t3517_leds[] = {
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[0] = {
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.gpio = 186,
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.name = "cm-t3517: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_t3517_led_pdata = {
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.num_leds = ARRAY_SIZE(cm_t3517_leds),
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.leds = cm_t3517_leds,
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};
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static struct platform_device cm_t3517_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_t3517_led_pdata,
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},
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};
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static void __init cm_t3517_init_leds(void)
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{
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platform_device_register(&cm_t3517_led_device);
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}
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#else
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static inline void cm_t3517_init_leds(void) {}
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#endif
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#if defined(CONFIG_CAN_TI_HECC) || defined(CONFIG_CAN_TI_HECC_MODULE)
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static struct resource cm_t3517_hecc_resources[] = {
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{
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.start = AM35XX_IPSS_HECC_BASE,
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.end = AM35XX_IPSS_HECC_BASE + SZ_16K - 1,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = INT_35XX_HECC0_IRQ,
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.end = INT_35XX_HECC0_IRQ,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct ti_hecc_platform_data cm_t3517_hecc_pdata = {
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.scc_hecc_offset = AM35XX_HECC_SCC_HECC_OFFSET,
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.scc_ram_offset = AM35XX_HECC_SCC_RAM_OFFSET,
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.hecc_ram_offset = AM35XX_HECC_RAM_OFFSET,
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.mbx_offset = AM35XX_HECC_MBOX_OFFSET,
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.int_line = AM35XX_HECC_INT_LINE,
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.version = AM35XX_HECC_VERSION,
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};
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static struct platform_device cm_t3517_hecc_device = {
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.name = "ti_hecc",
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.id = 1,
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.num_resources = ARRAY_SIZE(cm_t3517_hecc_resources),
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.resource = cm_t3517_hecc_resources,
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.dev = {
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.platform_data = &cm_t3517_hecc_pdata,
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},
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};
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static void cm_t3517_init_hecc(void)
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{
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platform_device_register(&cm_t3517_hecc_device);
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}
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#else
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static inline void cm_t3517_init_hecc(void) {}
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#endif
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#if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
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#define RTC_IO_GPIO (153)
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#define RTC_WR_GPIO (154)
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#define RTC_RD_GPIO (160)
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#define RTC_CS_GPIO (163)
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struct v3020_platform_data cm_t3517_v3020_pdata = {
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.use_gpio = 1,
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.gpio_cs = RTC_CS_GPIO,
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.gpio_wr = RTC_WR_GPIO,
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.gpio_rd = RTC_RD_GPIO,
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.gpio_io = RTC_IO_GPIO,
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};
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static struct platform_device cm_t3517_rtc_device = {
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.name = "v3020",
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.id = -1,
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.dev = {
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.platform_data = &cm_t3517_v3020_pdata,
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}
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};
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static void __init cm_t3517_init_rtc(void)
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{
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platform_device_register(&cm_t3517_rtc_device);
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}
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#else
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static inline void cm_t3517_init_rtc(void) {}
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#endif
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#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE)
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#define HSUSB1_RESET_GPIO (146)
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#define HSUSB2_RESET_GPIO (147)
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#define USB_HUB_RESET_GPIO (152)
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static struct ehci_hcd_omap_platform_data cm_t3517_ehci_pdata __initdata = {
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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] = HSUSB1_RESET_GPIO,
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.reset_gpio_port[1] = HSUSB2_RESET_GPIO,
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.reset_gpio_port[2] = -EINVAL,
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};
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static int cm_t3517_init_usbh(void)
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{
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int err;
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err = gpio_request(USB_HUB_RESET_GPIO, "usb hub rst");
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if (err) {
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pr_err("CM-T3517: usb hub rst gpio request failed: %d\n", err);
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} else {
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gpio_direction_output(USB_HUB_RESET_GPIO, 0);
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udelay(10);
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gpio_set_value(USB_HUB_RESET_GPIO, 1);
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msleep(1);
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}
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usb_ehci_init(&cm_t3517_ehci_pdata);
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return 0;
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}
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#else
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static inline int cm_t3517_init_usbh(void)
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{
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return 0;
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}
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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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#define NAND_BLOCK_SIZE SZ_128K
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static struct mtd_partition cm_t3517_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_t3517_nand_data = {
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.parts = cm_t3517_nand_partitions,
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.nr_parts = ARRAY_SIZE(cm_t3517_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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};
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static void __init cm_t3517_init_nand(void)
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{
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if (gpmc_nand_init(&cm_t3517_nand_data) < 0)
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pr_err("CM-T3517: NAND initialization failed\n");
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}
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#else
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static inline void cm_t3517_init_nand(void) {}
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#endif
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static struct omap_board_config_kernel cm_t3517_config[] __initdata = {
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};
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static void __init cm_t3517_init_irq(void)
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{
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omap_board_config = cm_t3517_config;
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omap_board_config_size = ARRAY_SIZE(cm_t3517_config);
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omap2_init_common_hw(NULL, NULL);
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omap_init_irq();
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omap_gpio_init();
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}
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static struct omap_board_mux board_mux[] __initdata = {
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/* GPIO186 - Green LED */
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OMAP3_MUX(SYS_CLKOUT2, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
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/* RTC GPIOs: IO, WR#, RD#, CS# */
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OMAP3_MUX(MCBSP4_DR, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
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OMAP3_MUX(MCBSP4_DX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
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OMAP3_MUX(MCBSP_CLKS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
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OMAP3_MUX(UART3_CTS_RCTX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
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/* HSUSB1 RESET */
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OMAP3_MUX(UART2_TX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
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/* HSUSB2 RESET */
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OMAP3_MUX(UART2_RX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
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/* CM-T3517 USB HUB nRESET */
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OMAP3_MUX(MCBSP4_CLKX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
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{ .reg_offset = OMAP_MUX_TERMINATOR },
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};
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static void __init cm_t3517_init(void)
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{
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omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
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omap_serial_init();
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cm_t3517_init_leds();
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cm_t3517_init_nand();
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cm_t3517_init_rtc();
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cm_t3517_init_usbh();
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cm_t3517_init_hecc();
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}
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MACHINE_START(CM_T3517, "Compulab CM-T3517")
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.phys_io = 0x48000000,
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.io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
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.boot_params = 0x80000100,
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.map_io = omap3_map_io,
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.reserve = omap_reserve,
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.init_irq = cm_t3517_init_irq,
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.init_machine = cm_t3517_init,
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.timer = &omap_timer,
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MACHINE_END
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