741e3a89de
This allows us to remove cpu_is_omap calls from init_irq functions. There should not be any need for cpu_is_omap calls as at this point. During the timer init we only care about SoC generation, and not about subrevisions. The main reason for the patch is that we want to initialize only minimal omap specific code from the init_early call. Signed-off-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Kevin Hilman <khilman@ti.com>
311 lines
7.8 KiB
C
311 lines
7.8 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/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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#include "control.h"
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#include "common-board-devices.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 (53)
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#define RTC_CS_GPIO (163)
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#define RTC_CS_EN_GPIO (160)
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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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int err;
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err = gpio_request_one(RTC_CS_EN_GPIO, GPIOF_OUT_INIT_HIGH,
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"rtc cs en");
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if (err) {
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pr_err("CM-T3517: rtc cs en gpio request failed: %d\n", err);
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return;
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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 usbhs_omap_board_data cm_t3517_ehci_pdata __initdata = {
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.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
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.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
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.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
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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 __init cm_t3517_init_usbh(void)
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{
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int err;
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err = gpio_request_one(USB_HUB_RESET_GPIO, GPIOF_OUT_INIT_LOW,
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"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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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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usbhs_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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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 = 0x2A0000 */
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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 = 0x6A0000 */
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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_early(void)
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{
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omap2_init_common_infrastructure();
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omap2_init_common_devices(NULL, NULL);
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}
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#ifdef CONFIG_OMAP_MUX
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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: */
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/* IO - GPIO153 */
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OMAP3_MUX(MCBSP4_DR, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
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/* WR# - GPIO154 */
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OMAP3_MUX(MCBSP4_DX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
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/* RD# - GPIO53 */
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OMAP3_MUX(GPMC_NCS2, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
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/* CS# - GPIO163 */
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OMAP3_MUX(UART3_CTS_RCTX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
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/* CS EN - GPIO160 */
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OMAP3_MUX(MCBSP_CLKS, 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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#endif
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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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omap_board_config = cm_t3517_config;
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omap_board_config_size = ARRAY_SIZE(cm_t3517_config);
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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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.boot_params = 0x80000100,
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.reserve = omap_reserve,
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.map_io = omap3_map_io,
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.init_early = cm_t3517_init_early,
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.init_irq = omap3_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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