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linux/arch/arm/mach-mx5/board-mx53_loco.c
Shawn Guo 913413c307 mmc: sdhci-esdhc-imx: extend card_detect and write_protect support for mx5 
The patch extends card_detect and write_protect support to get mx5
family and more scenarios supported.  The changes include:

 * Turn platform_data from optional to mandatory
 * Add cd_types and wp_types into platform_data to cover more use
   cases
 * Remove the use of flag ESDHC_FLAG_GPIO_FOR_CD
 * Adjust some machine codes to adopt the platform_data changes
 * Work around the issue that software reset will get card detection
   circuit stop working

With this patch, card_detect and write_protect gets supported on
mx5 based platforms.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Chris Ball <cjb@laptop.org>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Tested-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Acked-by: Chris Ball <cjb@laptop.org>
2011-07-27 09:31:14 +08:00

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/*
* Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <linux/init.h>
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <mach/common.h>
#include <mach/hardware.h>
#include <mach/iomux-mx53.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include "crm_regs.h"
#include "devices-imx53.h"
#define MX53_LOCO_POWER IMX_GPIO_NR(1, 8)
#define MX53_LOCO_UI1 IMX_GPIO_NR(2, 14)
#define MX53_LOCO_UI2 IMX_GPIO_NR(2, 15)
#define LOCO_FEC_PHY_RST IMX_GPIO_NR(7, 6)
#define LOCO_LED IMX_GPIO_NR(7, 7)
#define LOCO_SD3_CD IMX_GPIO_NR(3, 11)
#define LOCO_SD3_WP IMX_GPIO_NR(3, 12)
#define LOCO_SD1_CD IMX_GPIO_NR(3, 13)
static iomux_v3_cfg_t mx53_loco_pads[] = {
/* FEC */
MX53_PAD_FEC_MDC__FEC_MDC,
MX53_PAD_FEC_MDIO__FEC_MDIO,
MX53_PAD_FEC_REF_CLK__FEC_TX_CLK,
MX53_PAD_FEC_RX_ER__FEC_RX_ER,
MX53_PAD_FEC_CRS_DV__FEC_RX_DV,
MX53_PAD_FEC_RXD1__FEC_RDATA_1,
MX53_PAD_FEC_RXD0__FEC_RDATA_0,
MX53_PAD_FEC_TX_EN__FEC_TX_EN,
MX53_PAD_FEC_TXD1__FEC_TDATA_1,
MX53_PAD_FEC_TXD0__FEC_TDATA_0,
/* FEC_nRST */
MX53_PAD_PATA_DA_0__GPIO7_6,
/* FEC_nINT */
MX53_PAD_PATA_DATA4__GPIO2_4,
/* AUDMUX5 */
MX53_PAD_KEY_COL0__AUDMUX_AUD5_TXC,
MX53_PAD_KEY_ROW0__AUDMUX_AUD5_TXD,
MX53_PAD_KEY_COL1__AUDMUX_AUD5_TXFS,
MX53_PAD_KEY_ROW1__AUDMUX_AUD5_RXD,
/* I2C2 */
MX53_PAD_KEY_COL3__I2C2_SCL,
MX53_PAD_KEY_ROW3__I2C2_SDA,
/* SD1 */
MX53_PAD_SD1_CMD__ESDHC1_CMD,
MX53_PAD_SD1_CLK__ESDHC1_CLK,
MX53_PAD_SD1_DATA0__ESDHC1_DAT0,
MX53_PAD_SD1_DATA1__ESDHC1_DAT1,
MX53_PAD_SD1_DATA2__ESDHC1_DAT2,
MX53_PAD_SD1_DATA3__ESDHC1_DAT3,
/* SD1_CD */
MX53_PAD_EIM_DA13__GPIO3_13,
/* SD3 */
MX53_PAD_PATA_DATA8__ESDHC3_DAT0,
MX53_PAD_PATA_DATA9__ESDHC3_DAT1,
MX53_PAD_PATA_DATA10__ESDHC3_DAT2,
MX53_PAD_PATA_DATA11__ESDHC3_DAT3,
MX53_PAD_PATA_DATA0__ESDHC3_DAT4,
MX53_PAD_PATA_DATA1__ESDHC3_DAT5,
MX53_PAD_PATA_DATA2__ESDHC3_DAT6,
MX53_PAD_PATA_DATA3__ESDHC3_DAT7,
MX53_PAD_PATA_IORDY__ESDHC3_CLK,
MX53_PAD_PATA_RESET_B__ESDHC3_CMD,
/* SD3_CD */
MX53_PAD_EIM_DA11__GPIO3_11,
/* SD3_WP */
MX53_PAD_EIM_DA12__GPIO3_12,
/* VGA */
MX53_PAD_EIM_OE__IPU_DI1_PIN7,
MX53_PAD_EIM_RW__IPU_DI1_PIN8,
/* DISPLB */
MX53_PAD_EIM_D20__IPU_SER_DISP0_CS,
MX53_PAD_EIM_D21__IPU_DISPB0_SER_CLK,
MX53_PAD_EIM_D22__IPU_DISPB0_SER_DIN,
MX53_PAD_EIM_D23__IPU_DI0_D0_CS,
/* DISP0_POWER_EN */
MX53_PAD_EIM_D24__GPIO3_24,
/* DISP0 DET INT */
MX53_PAD_EIM_D31__GPIO3_31,
/* LVDS */
MX53_PAD_LVDS0_TX3_P__LDB_LVDS0_TX3,
MX53_PAD_LVDS0_CLK_P__LDB_LVDS0_CLK,
MX53_PAD_LVDS0_TX2_P__LDB_LVDS0_TX2,
MX53_PAD_LVDS0_TX1_P__LDB_LVDS0_TX1,
MX53_PAD_LVDS0_TX0_P__LDB_LVDS0_TX0,
MX53_PAD_LVDS1_TX3_P__LDB_LVDS1_TX3,
MX53_PAD_LVDS1_TX2_P__LDB_LVDS1_TX2,
MX53_PAD_LVDS1_CLK_P__LDB_LVDS1_CLK,
MX53_PAD_LVDS1_TX1_P__LDB_LVDS1_TX1,
MX53_PAD_LVDS1_TX0_P__LDB_LVDS1_TX0,
/* I2C1 */
MX53_PAD_CSI0_DAT8__I2C1_SDA,
MX53_PAD_CSI0_DAT9__I2C1_SCL,
/* UART1 */
MX53_PAD_CSI0_DAT10__UART1_TXD_MUX,
MX53_PAD_CSI0_DAT11__UART1_RXD_MUX,
/* CSI0 */
MX53_PAD_CSI0_DAT12__IPU_CSI0_D_12,
MX53_PAD_CSI0_DAT13__IPU_CSI0_D_13,
MX53_PAD_CSI0_DAT14__IPU_CSI0_D_14,
MX53_PAD_CSI0_DAT15__IPU_CSI0_D_15,
MX53_PAD_CSI0_DAT16__IPU_CSI0_D_16,
MX53_PAD_CSI0_DAT17__IPU_CSI0_D_17,
MX53_PAD_CSI0_DAT18__IPU_CSI0_D_18,
MX53_PAD_CSI0_DAT19__IPU_CSI0_D_19,
MX53_PAD_CSI0_VSYNC__IPU_CSI0_VSYNC,
MX53_PAD_CSI0_MCLK__IPU_CSI0_HSYNC,
MX53_PAD_CSI0_PIXCLK__IPU_CSI0_PIXCLK,
/* DISPLAY */
MX53_PAD_DI0_DISP_CLK__IPU_DI0_DISP_CLK,
MX53_PAD_DI0_PIN15__IPU_DI0_PIN15,
MX53_PAD_DI0_PIN2__IPU_DI0_PIN2,
MX53_PAD_DI0_PIN3__IPU_DI0_PIN3,
MX53_PAD_DISP0_DAT0__IPU_DISP0_DAT_0,
MX53_PAD_DISP0_DAT1__IPU_DISP0_DAT_1,
MX53_PAD_DISP0_DAT2__IPU_DISP0_DAT_2,
MX53_PAD_DISP0_DAT3__IPU_DISP0_DAT_3,
MX53_PAD_DISP0_DAT4__IPU_DISP0_DAT_4,
MX53_PAD_DISP0_DAT5__IPU_DISP0_DAT_5,
MX53_PAD_DISP0_DAT6__IPU_DISP0_DAT_6,
MX53_PAD_DISP0_DAT7__IPU_DISP0_DAT_7,
MX53_PAD_DISP0_DAT8__IPU_DISP0_DAT_8,
MX53_PAD_DISP0_DAT9__IPU_DISP0_DAT_9,
MX53_PAD_DISP0_DAT10__IPU_DISP0_DAT_10,
MX53_PAD_DISP0_DAT11__IPU_DISP0_DAT_11,
MX53_PAD_DISP0_DAT12__IPU_DISP0_DAT_12,
MX53_PAD_DISP0_DAT13__IPU_DISP0_DAT_13,
MX53_PAD_DISP0_DAT14__IPU_DISP0_DAT_14,
MX53_PAD_DISP0_DAT15__IPU_DISP0_DAT_15,
MX53_PAD_DISP0_DAT16__IPU_DISP0_DAT_16,
MX53_PAD_DISP0_DAT17__IPU_DISP0_DAT_17,
MX53_PAD_DISP0_DAT18__IPU_DISP0_DAT_18,
MX53_PAD_DISP0_DAT19__IPU_DISP0_DAT_19,
MX53_PAD_DISP0_DAT20__IPU_DISP0_DAT_20,
MX53_PAD_DISP0_DAT21__IPU_DISP0_DAT_21,
MX53_PAD_DISP0_DAT22__IPU_DISP0_DAT_22,
MX53_PAD_DISP0_DAT23__IPU_DISP0_DAT_23,
/* Audio CLK*/
MX53_PAD_GPIO_0__CCM_SSI_EXT1_CLK,
/* PWM */
MX53_PAD_GPIO_1__PWM2_PWMO,
/* SPDIF */
MX53_PAD_GPIO_7__SPDIF_PLOCK,
MX53_PAD_GPIO_17__SPDIF_OUT1,
/* GPIO */
MX53_PAD_PATA_DA_1__GPIO7_7, /* LED */
MX53_PAD_PATA_DA_2__GPIO7_8,
MX53_PAD_PATA_DATA5__GPIO2_5,
MX53_PAD_PATA_DATA6__GPIO2_6,
MX53_PAD_PATA_DATA14__GPIO2_14,
MX53_PAD_PATA_DATA15__GPIO2_15,
MX53_PAD_PATA_INTRQ__GPIO7_2,
MX53_PAD_EIM_WAIT__GPIO5_0,
MX53_PAD_NANDF_WP_B__GPIO6_9,
MX53_PAD_NANDF_RB0__GPIO6_10,
MX53_PAD_NANDF_CS1__GPIO6_14,
MX53_PAD_NANDF_CS2__GPIO6_15,
MX53_PAD_NANDF_CS3__GPIO6_16,
MX53_PAD_GPIO_5__GPIO1_5,
MX53_PAD_GPIO_16__GPIO7_11,
MX53_PAD_GPIO_8__GPIO1_8,
};
#define GPIO_BUTTON(gpio_num, ev_code, act_low, descr, wake) \
{ \
.gpio = gpio_num, \
.type = EV_KEY, \
.code = ev_code, \
.active_low = act_low, \
.desc = "btn " descr, \
.wakeup = wake, \
}
static struct gpio_keys_button loco_buttons[] = {
GPIO_BUTTON(MX53_LOCO_POWER, KEY_POWER, 1, "power", 0),
GPIO_BUTTON(MX53_LOCO_UI1, KEY_VOLUMEUP, 1, "volume-up", 0),
GPIO_BUTTON(MX53_LOCO_UI2, KEY_VOLUMEDOWN, 1, "volume-down", 0),
};
static const struct gpio_keys_platform_data loco_button_data __initconst = {
.buttons = loco_buttons,
.nbuttons = ARRAY_SIZE(loco_buttons),
};
static const struct esdhc_platform_data mx53_loco_sd1_data __initconst = {
.cd_gpio = LOCO_SD1_CD,
.cd_type = ESDHC_CD_GPIO,
.wp_type = ESDHC_WP_NONE,
};
static const struct esdhc_platform_data mx53_loco_sd3_data __initconst = {
.cd_gpio = LOCO_SD3_CD,
.wp_gpio = LOCO_SD3_WP,
.cd_type = ESDHC_CD_GPIO,
.wp_type = ESDHC_WP_GPIO,
};
static inline void mx53_loco_fec_reset(void)
{
int ret;
/* reset FEC PHY */
ret = gpio_request(LOCO_FEC_PHY_RST, "fec-phy-reset");
if (ret) {
printk(KERN_ERR"failed to get GPIO_FEC_PHY_RESET: %d\n", ret);
return;
}
gpio_direction_output(LOCO_FEC_PHY_RST, 0);
msleep(1);
gpio_set_value(LOCO_FEC_PHY_RST, 1);
}
static struct fec_platform_data mx53_loco_fec_data = {
.phy = PHY_INTERFACE_MODE_RMII,
};
static const struct imxi2c_platform_data mx53_loco_i2c_data __initconst = {
.bitrate = 100000,
};
static const struct gpio_led mx53loco_leds[] __initconst = {
{
.name = "green",
.default_trigger = "heartbeat",
.gpio = LOCO_LED,
},
};
static const struct gpio_led_platform_data mx53loco_leds_data __initconst = {
.leds = mx53loco_leds,
.num_leds = ARRAY_SIZE(mx53loco_leds),
};
static void __init mx53_loco_board_init(void)
{
imx53_soc_init();
mxc_iomux_v3_setup_multiple_pads(mx53_loco_pads,
ARRAY_SIZE(mx53_loco_pads));
imx53_add_imx_uart(0, NULL);
mx53_loco_fec_reset();
imx53_add_fec(&mx53_loco_fec_data);
imx53_add_imx2_wdt(0, NULL);
imx53_add_imx_i2c(0, &mx53_loco_i2c_data);
imx53_add_imx_i2c(1, &mx53_loco_i2c_data);
imx53_add_sdhci_esdhc_imx(0, &mx53_loco_sd1_data);
imx53_add_sdhci_esdhc_imx(2, &mx53_loco_sd3_data);
imx_add_gpio_keys(&loco_button_data);
gpio_led_register_device(-1, &mx53loco_leds_data);
}
static void __init mx53_loco_timer_init(void)
{
mx53_clocks_init(32768, 24000000, 0, 0);
}
static struct sys_timer mx53_loco_timer = {
.init = mx53_loco_timer_init,
};
MACHINE_START(MX53_LOCO, "Freescale MX53 LOCO Board")
.map_io = mx53_map_io,
.init_early = imx53_init_early,
.init_irq = mx53_init_irq,
.timer = &mx53_loco_timer,
.init_machine = mx53_loco_board_init,
MACHINE_END
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