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linux/arch/arm/mach-imx/mach-pcm043.c
Linus Walleij 74ff81e16c mmc: sdhci: imx: Use the slot GPIO descriptor 
Simplify things by making the i.MX SDHCI driver just use
slot GPIO with descriptors instead of passing around the global
GPIO numbers that we want to get rid of.

As it turns out, just one single board is using the platform
data to pass in GPIOs numbers for CD and WP, so we augment this
to use a machine descriptor table instead.

Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-12-17 08:26:24 +01:00

422 lines
10 KiB
C
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/*
* Copyright (C) 2009 Sascha Hauer, Pengutronix
*
* 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.
*/
#include <linux/types.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/plat-ram.h>
#include <linux/memory.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/smc911x.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/property.h>
#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>
#include "common.h"
#include "devices-imx35.h"
#include "ehci.h"
#include "hardware.h"
#include "iomux-mx35.h"
#include "ulpi.h"
static const struct fb_videomode fb_modedb[] = {
{
/* 240x320 @ 60 Hz */
.name = "Sharp-LQ035Q7",
.refresh = 60,
.xres = 240,
.yres = 320,
.pixclock = 185925,
.left_margin = 9,
.right_margin = 16,
.upper_margin = 7,
.lower_margin = 9,
.hsync_len = 1,
.vsync_len = 1,
.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_SHARP_MODE | FB_SYNC_CLK_INVERT | FB_SYNC_CLK_IDLE_EN,
.vmode = FB_VMODE_NONINTERLACED,
.flag = 0,
}, {
/* 240x320 @ 60 Hz */
.name = "TX090",
.refresh = 60,
.xres = 240,
.yres = 320,
.pixclock = 38255,
.left_margin = 144,
.right_margin = 0,
.upper_margin = 7,
.lower_margin = 40,
.hsync_len = 96,
.vsync_len = 1,
.sync = FB_SYNC_VERT_HIGH_ACT | FB_SYNC_OE_ACT_HIGH,
.vmode = FB_VMODE_NONINTERLACED,
.flag = 0,
},
};
static struct mx3fb_platform_data mx3fb_pdata __initdata = {
.name = "Sharp-LQ035Q7",
.mode = fb_modedb,
.num_modes = ARRAY_SIZE(fb_modedb),
};
static struct physmap_flash_data pcm043_flash_data = {
.width = 2,
};
static struct resource pcm043_flash_resource = {
.start = 0xa0000000,
.end = 0xa1ffffff,
.flags = IORESOURCE_MEM,
};
static struct platform_device pcm043_flash = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &pcm043_flash_data,
},
.resource = &pcm043_flash_resource,
.num_resources = 1,
};
static const struct imxuart_platform_data uart_pdata __initconst = {
.flags = IMXUART_HAVE_RTSCTS,
};
static const struct imxi2c_platform_data pcm043_i2c0_data __initconst = {
.bitrate = 50000,
};
static const struct property_entry board_eeprom_properties[] = {
PROPERTY_ENTRY_U32("pagesize", 32),
{ }
};
static struct i2c_board_info pcm043_i2c_devices[] = {
{
I2C_BOARD_INFO("24c32", 0x52), /* E0=0, E1=1, E2=0 */
.properties = board_eeprom_properties,
}, {
I2C_BOARD_INFO("pcf8563", 0x51),
},
};
static struct platform_device *devices[] __initdata = {
&pcm043_flash,
};
static const iomux_v3_cfg_t pcm043_pads[] __initconst = {
/* UART1 */
MX35_PAD_CTS1__UART1_CTS,
MX35_PAD_RTS1__UART1_RTS,
MX35_PAD_TXD1__UART1_TXD_MUX,
MX35_PAD_RXD1__UART1_RXD_MUX,
/* UART2 */
MX35_PAD_CTS2__UART2_CTS,
MX35_PAD_RTS2__UART2_RTS,
MX35_PAD_TXD2__UART2_TXD_MUX,
MX35_PAD_RXD2__UART2_RXD_MUX,
/* FEC */
MX35_PAD_FEC_TX_CLK__FEC_TX_CLK,
MX35_PAD_FEC_RX_CLK__FEC_RX_CLK,
MX35_PAD_FEC_RX_DV__FEC_RX_DV,
MX35_PAD_FEC_COL__FEC_COL,
MX35_PAD_FEC_RDATA0__FEC_RDATA_0,
MX35_PAD_FEC_TDATA0__FEC_TDATA_0,
MX35_PAD_FEC_TX_EN__FEC_TX_EN,
MX35_PAD_FEC_MDC__FEC_MDC,
MX35_PAD_FEC_MDIO__FEC_MDIO,
MX35_PAD_FEC_TX_ERR__FEC_TX_ERR,
MX35_PAD_FEC_RX_ERR__FEC_RX_ERR,
MX35_PAD_FEC_CRS__FEC_CRS,
MX35_PAD_FEC_RDATA1__FEC_RDATA_1,
MX35_PAD_FEC_TDATA1__FEC_TDATA_1,
MX35_PAD_FEC_RDATA2__FEC_RDATA_2,
MX35_PAD_FEC_TDATA2__FEC_TDATA_2,
MX35_PAD_FEC_RDATA3__FEC_RDATA_3,
MX35_PAD_FEC_TDATA3__FEC_TDATA_3,
/* I2C1 */
MX35_PAD_I2C1_CLK__I2C1_SCL,
MX35_PAD_I2C1_DAT__I2C1_SDA,
/* Display */
MX35_PAD_LD0__IPU_DISPB_DAT_0,
MX35_PAD_LD1__IPU_DISPB_DAT_1,
MX35_PAD_LD2__IPU_DISPB_DAT_2,
MX35_PAD_LD3__IPU_DISPB_DAT_3,
MX35_PAD_LD4__IPU_DISPB_DAT_4,
MX35_PAD_LD5__IPU_DISPB_DAT_5,
MX35_PAD_LD6__IPU_DISPB_DAT_6,
MX35_PAD_LD7__IPU_DISPB_DAT_7,
MX35_PAD_LD8__IPU_DISPB_DAT_8,
MX35_PAD_LD9__IPU_DISPB_DAT_9,
MX35_PAD_LD10__IPU_DISPB_DAT_10,
MX35_PAD_LD11__IPU_DISPB_DAT_11,
MX35_PAD_LD12__IPU_DISPB_DAT_12,
MX35_PAD_LD13__IPU_DISPB_DAT_13,
MX35_PAD_LD14__IPU_DISPB_DAT_14,
MX35_PAD_LD15__IPU_DISPB_DAT_15,
MX35_PAD_LD16__IPU_DISPB_DAT_16,
MX35_PAD_LD17__IPU_DISPB_DAT_17,
MX35_PAD_D3_HSYNC__IPU_DISPB_D3_HSYNC,
MX35_PAD_D3_FPSHIFT__IPU_DISPB_D3_CLK,
MX35_PAD_D3_DRDY__IPU_DISPB_D3_DRDY,
MX35_PAD_CONTRAST__IPU_DISPB_CONTR,
MX35_PAD_D3_VSYNC__IPU_DISPB_D3_VSYNC,
MX35_PAD_D3_REV__IPU_DISPB_D3_REV,
MX35_PAD_D3_CLS__IPU_DISPB_D3_CLS,
/* gpio */
MX35_PAD_ATA_CS0__GPIO2_6,
/* USB host */
MX35_PAD_I2C2_CLK__USB_TOP_USBH2_PWR,
MX35_PAD_I2C2_DAT__USB_TOP_USBH2_OC,
/* SSI */
MX35_PAD_STXFS4__AUDMUX_AUD4_TXFS,
MX35_PAD_STXD4__AUDMUX_AUD4_TXD,
MX35_PAD_SRXD4__AUDMUX_AUD4_RXD,
MX35_PAD_SCK4__AUDMUX_AUD4_TXC,
/* CAN2 */
MX35_PAD_TX5_RX0__CAN2_TXCAN,
MX35_PAD_TX4_RX1__CAN2_RXCAN,
/* esdhc */
MX35_PAD_SD1_CMD__ESDHC1_CMD,
MX35_PAD_SD1_CLK__ESDHC1_CLK,
MX35_PAD_SD1_DATA0__ESDHC1_DAT0,
MX35_PAD_SD1_DATA1__ESDHC1_DAT1,
MX35_PAD_SD1_DATA2__ESDHC1_DAT2,
MX35_PAD_SD1_DATA3__ESDHC1_DAT3,
MX35_PAD_ATA_DATA10__GPIO2_23, /* WriteProtect */
MX35_PAD_ATA_DATA11__GPIO2_24, /* CardDetect */
};
#define AC97_GPIO_TXFS IMX_GPIO_NR(2, 31)
#define AC97_GPIO_TXD IMX_GPIO_NR(2, 28)
#define AC97_GPIO_RESET IMX_GPIO_NR(2, 0)
static void pcm043_ac97_warm_reset(struct snd_ac97 *ac97)
{
iomux_v3_cfg_t txfs_gpio = MX35_PAD_STXFS4__GPIO2_31;
iomux_v3_cfg_t txfs = MX35_PAD_STXFS4__AUDMUX_AUD4_TXFS;
int ret;
ret = gpio_request(AC97_GPIO_TXFS, "SSI");
if (ret) {
printk("failed to get GPIO_TXFS: %d\n", ret);
return;
}
mxc_iomux_v3_setup_pad(txfs_gpio);
/* warm reset */
gpio_direction_output(AC97_GPIO_TXFS, 1);
udelay(2);
gpio_set_value(AC97_GPIO_TXFS, 0);
gpio_free(AC97_GPIO_TXFS);
mxc_iomux_v3_setup_pad(txfs);
}
static void pcm043_ac97_cold_reset(struct snd_ac97 *ac97)
{
iomux_v3_cfg_t txfs_gpio = MX35_PAD_STXFS4__GPIO2_31;
iomux_v3_cfg_t txfs = MX35_PAD_STXFS4__AUDMUX_AUD4_TXFS;
iomux_v3_cfg_t txd_gpio = MX35_PAD_STXD4__GPIO2_28;
iomux_v3_cfg_t txd = MX35_PAD_STXD4__AUDMUX_AUD4_TXD;
iomux_v3_cfg_t reset_gpio = MX35_PAD_SD2_CMD__GPIO2_0;
int ret;
ret = gpio_request(AC97_GPIO_TXFS, "SSI");
if (ret)
goto err1;
ret = gpio_request(AC97_GPIO_TXD, "SSI");
if (ret)
goto err2;
ret = gpio_request(AC97_GPIO_RESET, "SSI");
if (ret)
goto err3;
mxc_iomux_v3_setup_pad(txfs_gpio);
mxc_iomux_v3_setup_pad(txd_gpio);
mxc_iomux_v3_setup_pad(reset_gpio);
gpio_direction_output(AC97_GPIO_TXFS, 0);
gpio_direction_output(AC97_GPIO_TXD, 0);
/* cold reset */
gpio_direction_output(AC97_GPIO_RESET, 0);
udelay(10);
gpio_direction_output(AC97_GPIO_RESET, 1);
mxc_iomux_v3_setup_pad(txd);
mxc_iomux_v3_setup_pad(txfs);
gpio_free(AC97_GPIO_RESET);
err3:
gpio_free(AC97_GPIO_TXD);
err2:
gpio_free(AC97_GPIO_TXFS);
err1:
if (ret)
printk("%s failed with %d\n", __func__, ret);
mdelay(1);
}
static const struct imx_ssi_platform_data pcm043_ssi_pdata __initconst = {
.ac97_reset = pcm043_ac97_cold_reset,
.ac97_warm_reset = pcm043_ac97_warm_reset,
.flags = IMX_SSI_USE_AC97,
};
static const struct mxc_nand_platform_data
pcm037_nand_board_info __initconst = {
.width = 1,
.hw_ecc = 1,
};
static int pcm043_otg_init(struct platform_device *pdev)
{
return mx35_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
}
static struct mxc_usbh_platform_data otg_pdata __initdata = {
.init = pcm043_otg_init,
.portsc = MXC_EHCI_MODE_UTMI,
};
static int pcm043_usbh1_init(struct platform_device *pdev)
{
return mx35_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_SINGLE_UNI |
MXC_EHCI_INTERNAL_PHY | MXC_EHCI_IPPUE_DOWN);
}
static const struct mxc_usbh_platform_data usbh1_pdata __initconst = {
.init = pcm043_usbh1_init,
.portsc = MXC_EHCI_MODE_SERIAL,
};
static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
.operating_mode = FSL_USB2_DR_DEVICE,
.phy_mode = FSL_USB2_PHY_UTMI,
};
static bool otg_mode_host __initdata;
static int __init pcm043_otg_mode(char *options)
{
if (!strcmp(options, "host"))
otg_mode_host = true;
else if (!strcmp(options, "device"))
otg_mode_host = false;
else
pr_info("otg_mode neither \"host\" nor \"device\". "
"Defaulting to device\n");
return 1;
}
__setup("otg_mode=", pcm043_otg_mode);
static struct esdhc_platform_data sd1_pdata = {
.wp_type = ESDHC_WP_GPIO,
.cd_type = ESDHC_CD_GPIO,
};
static struct gpiod_lookup_table sd1_gpio_table = {
.dev_id = "sdhci-esdhc-imx35.0",
.table = {
/* Card detect: bank 2 offset 24 */
GPIO_LOOKUP("imx35-gpio.2", 24, "cd", GPIO_ACTIVE_LOW),
/* Write protect: bank 2 offset 23 */
GPIO_LOOKUP("imx35-gpio.2", 23, "wp", GPIO_ACTIVE_LOW),
{ },
},
};
/*
* Board specific initialization.
*/
static void __init pcm043_init(void)
{
imx35_soc_init();
mxc_iomux_v3_setup_multiple_pads(pcm043_pads, ARRAY_SIZE(pcm043_pads));
imx35_add_fec(NULL);
platform_add_devices(devices, ARRAY_SIZE(devices));
imx35_add_imx2_wdt();
imx35_add_imx_uart0(&uart_pdata);
imx35_add_mxc_nand(&pcm037_nand_board_info);
imx35_add_imx_uart1(&uart_pdata);
i2c_register_board_info(0, pcm043_i2c_devices,
ARRAY_SIZE(pcm043_i2c_devices));
imx35_add_imx_i2c0(&pcm043_i2c0_data);
imx35_add_ipu_core();
imx35_add_mx3_sdc_fb(&mx3fb_pdata);
if (otg_mode_host) {
otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
ULPI_OTG_DRVVBUS_EXT);
if (otg_pdata.otg)
imx35_add_mxc_ehci_otg(&otg_pdata);
}
imx35_add_mxc_ehci_hs(&usbh1_pdata);
if (!otg_mode_host)
imx35_add_fsl_usb2_udc(&otg_device_pdata);
imx35_add_flexcan1();
}
static void __init pcm043_late_init(void)
{
imx35_add_imx_ssi(0, &pcm043_ssi_pdata);
gpiod_add_lookup_table(&sd1_gpio_table);
imx35_add_sdhci_esdhc_imx(0, &sd1_pdata);
}
static void __init pcm043_timer_init(void)
{
mx35_clocks_init();
}
MACHINE_START(PCM043, "Phytec Phycore pcm043")
/* Maintainer: Pengutronix */
.atag_offset = 0x100,
.map_io = mx35_map_io,
.init_early = imx35_init_early,
.init_irq = mx35_init_irq,
.init_time = pcm043_timer_init,
.init_machine = pcm043_init,
.init_late = pcm043_late_init,
.restart = mxc_restart,
MACHINE_END
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