3b972bf06c
Otherwise omap_device_build() and omap_mux related functions can't be marked as __init when twl is build as a module. If a board is using GPIO pins or regulators configured by an external chip, such as TWL PMIC on I2C bus, the board must mark those MMC controllers as deferred. Additionally both omap_hsmmc_init() and omap_hsmmc_late_init() must be called by the board. For MMC controllers using internal GPIO pins for card detect and regulators the slots don't need to be marked deferred. In this case calling omap_hsmmc_init() is sufficient. Only mark the MMC slots using gpio_cd or gpio_wd as deferred as noted by Igor Grinberg <grinberg@compulab.co.il>. Note that this patch does not change the behaviour for board-4430sdp.c board-omap4panda.c. These boards wrongly rely on the omap_hsmmc.c init function callback to configure the PMIC GPIO interrupt lines on external chip. If the PMIC interrupt lines are not configured during init, they will fail. Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
309 lines
7.3 KiB
C
309 lines
7.3 KiB
C
/*
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* linux/arch/arm/mach-omap2/board-2430sdp.c
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*
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* Copyright (C) 2006 Texas Instruments
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*
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* Modified from mach-omap2/board-generic.c
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*
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* Initial Code : Based on a patch from Komal Shah and Richard Woodruff
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* Updated the Code for 2430 SDP : Syed Mohammed Khasim
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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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/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/physmap.h>
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#include <linux/mmc/host.h>
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#include <linux/delay.h>
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#include <linux/i2c/twl.h>
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#include <linux/regulator/machine.h>
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#include <linux/err.h>
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#include <linux/clk.h>
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#include <linux/io.h>
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#include <linux/gpio.h>
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#include <mach/hardware.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 "common.h"
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#include <plat/gpmc.h>
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#include <plat/usb.h>
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#include <plat/gpmc-smc91x.h>
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#include <video/omapdss.h>
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#include <video/omap-panel-generic-dpi.h>
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#include "mux.h"
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#include "hsmmc.h"
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#include "common-board-devices.h"
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#define SDP2430_CS0_BASE 0x04000000
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#define SECONDARY_LCD_GPIO 147
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static struct mtd_partition sdp2430_partitions[] = {
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/* bootloader (U-Boot, etc) in first sector */
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{
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.name = "bootloader",
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.offset = 0,
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.size = SZ_256K,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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},
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/* bootloader params in the next sector */
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{
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.name = "params",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_128K,
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.mask_flags = 0,
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},
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/* kernel */
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{
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.name = "kernel",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_2M,
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.mask_flags = 0
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},
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/* file system */
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{
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.name = "filesystem",
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.offset = MTDPART_OFS_APPEND,
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.size = MTDPART_SIZ_FULL,
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.mask_flags = 0
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}
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};
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static struct physmap_flash_data sdp2430_flash_data = {
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.width = 2,
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.parts = sdp2430_partitions,
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.nr_parts = ARRAY_SIZE(sdp2430_partitions),
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};
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static struct resource sdp2430_flash_resource = {
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.start = SDP2430_CS0_BASE,
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.end = SDP2430_CS0_BASE + SZ_64M - 1,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device sdp2430_flash_device = {
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.name = "physmap-flash",
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.id = 0,
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.dev = {
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.platform_data = &sdp2430_flash_data,
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},
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.num_resources = 1,
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.resource = &sdp2430_flash_resource,
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};
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static struct platform_device *sdp2430_devices[] __initdata = {
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&sdp2430_flash_device,
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};
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/* LCD */
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#define SDP2430_LCD_PANEL_BACKLIGHT_GPIO 91
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#define SDP2430_LCD_PANEL_ENABLE_GPIO 154
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static int sdp2430_panel_enable_lcd(struct omap_dss_device *dssdev)
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{
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gpio_direction_output(SDP2430_LCD_PANEL_ENABLE_GPIO, 1);
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gpio_direction_output(SDP2430_LCD_PANEL_BACKLIGHT_GPIO, 1);
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return 0;
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}
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static void sdp2430_panel_disable_lcd(struct omap_dss_device *dssdev)
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{
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gpio_direction_output(SDP2430_LCD_PANEL_ENABLE_GPIO, 0);
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gpio_direction_output(SDP2430_LCD_PANEL_BACKLIGHT_GPIO, 0);
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}
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static struct panel_generic_dpi_data sdp2430_panel_data = {
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.name = "nec_nl2432dr22-11b",
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.platform_enable = sdp2430_panel_enable_lcd,
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.platform_disable = sdp2430_panel_disable_lcd,
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};
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static struct omap_dss_device sdp2430_lcd_device = {
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.name = "lcd",
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.driver_name = "generic_dpi_panel",
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.type = OMAP_DISPLAY_TYPE_DPI,
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.phy.dpi.data_lines = 16,
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.data = &sdp2430_panel_data,
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};
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static struct omap_dss_device *sdp2430_dss_devices[] = {
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&sdp2430_lcd_device,
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};
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static struct omap_dss_board_info sdp2430_dss_data = {
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.num_devices = ARRAY_SIZE(sdp2430_dss_devices),
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.devices = sdp2430_dss_devices,
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.default_device = &sdp2430_lcd_device,
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};
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static void __init sdp2430_display_init(void)
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{
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int r;
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static struct gpio gpios[] __initdata = {
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{ SDP2430_LCD_PANEL_ENABLE_GPIO, GPIOF_OUT_INIT_LOW,
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"LCD reset" },
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{ SDP2430_LCD_PANEL_BACKLIGHT_GPIO, GPIOF_OUT_INIT_LOW,
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"LCD Backlight" },
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};
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r = gpio_request_array(gpios, ARRAY_SIZE(gpios));
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if (r) {
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pr_err("Cannot request LCD GPIOs, error %d\n", r);
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return;
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}
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omap_display_init(&sdp2430_dss_data);
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}
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#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91x_MODULE)
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static struct omap_smc91x_platform_data board_smc91x_data = {
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.cs = 5,
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.gpio_irq = 149,
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.flags = GPMC_MUX_ADD_DATA | GPMC_TIMINGS_SMC91C96 |
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IORESOURCE_IRQ_LOWLEVEL,
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};
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static void __init board_smc91x_init(void)
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{
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omap_mux_init_gpio(149, OMAP_PIN_INPUT);
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gpmc_smc91x_init(&board_smc91x_data);
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}
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#else
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static inline void board_smc91x_init(void)
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{
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}
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#endif
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static struct regulator_consumer_supply sdp2430_vmmc1_supplies[] = {
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REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
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};
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/* VMMC1 for OMAP VDD_MMC1 (i/o) and MMC1 card */
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static struct regulator_init_data sdp2430_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 = ARRAY_SIZE(sdp2430_vmmc1_supplies),
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.consumer_supplies = &sdp2430_vmmc1_supplies[0],
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};
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static struct twl4030_gpio_platform_data sdp2430_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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};
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static struct twl4030_platform_data sdp2430_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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.gpio = &sdp2430_gpio_data,
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.vmmc1 = &sdp2430_vmmc1,
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};
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static struct i2c_board_info __initdata sdp2430_i2c1_boardinfo[] = {
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{
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I2C_BOARD_INFO("isp1301_omap", 0x2D),
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.flags = I2C_CLIENT_WAKE,
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.irq = OMAP_GPIO_IRQ(78),
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},
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};
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static int __init omap2430_i2c_init(void)
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{
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omap_register_i2c_bus(1, 100, sdp2430_i2c1_boardinfo,
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ARRAY_SIZE(sdp2430_i2c1_boardinfo));
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omap_pmic_init(2, 100, "twl4030", INT_24XX_SYS_NIRQ,
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&sdp2430_twldata);
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return 0;
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}
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static struct omap2_hsmmc_info mmc[] __initdata = {
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{
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.mmc = 1,
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.caps = MMC_CAP_4_BIT_DATA,
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.gpio_cd = -EINVAL,
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.gpio_wp = -EINVAL,
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.ext_clock = 1,
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},
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{} /* Terminator */
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};
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static struct omap_usb_config sdp2430_usb_config __initdata = {
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.otg = 1,
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#ifdef CONFIG_USB_GADGET_OMAP
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.hmc_mode = 0x0,
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#elif defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
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.hmc_mode = 0x1,
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#endif
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.pins[0] = 3,
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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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{ .reg_offset = OMAP_MUX_TERMINATOR },
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};
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#endif
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static void __init omap_2430sdp_init(void)
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{
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omap2430_mux_init(board_mux, OMAP_PACKAGE_ZAC);
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omap2430_i2c_init();
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platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices));
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omap_serial_init();
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omap_sdrc_init(NULL, NULL);
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omap_hsmmc_init(mmc);
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omap2_usbfs_init(&sdp2430_usb_config);
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omap_mux_init_signal("usb0hs_stp", OMAP_PULL_ENA | OMAP_PULL_UP);
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usb_musb_init(NULL);
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board_smc91x_init();
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/* Turn off secondary LCD backlight */
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gpio_request_one(SECONDARY_LCD_GPIO, GPIOF_OUT_INIT_LOW,
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"Secondary LCD backlight");
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sdp2430_display_init();
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}
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MACHINE_START(OMAP_2430SDP, "OMAP2430 sdp2430 board")
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/* Maintainer: Syed Khasim - Texas Instruments Inc */
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.atag_offset = 0x100,
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.reserve = omap_reserve,
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.map_io = omap243x_map_io,
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.init_early = omap2430_init_early,
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.init_irq = omap2_init_irq,
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.handle_irq = omap2_intc_handle_irq,
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.init_machine = omap_2430sdp_init,
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.timer = &omap2_timer,
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.restart = omap_prcm_restart,
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MACHINE_END
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