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/*
* Copyright (C) 2000 Deep Blue Solutions Ltd
* Copyright (C) 2002 Shane Nay (shane@minirl.com)
* Copyright 2006-2007 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.
*/
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/physmap.h>
#include <linux/gpio/driver.h>
#include <linux/gpio/machine.h>
#include <linux/gpio.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include "common.h"
#include "devices-imx21.h"
#include "hardware.h"
#include "iomux-mx21.h"
#define MX21ADS_CS8900A_REG (MX21_CS1_BASE_ADDR + 0x000000)
#define MX21ADS_ST16C255_IOBASE_REG (MX21_CS1_BASE_ADDR + 0x200000)
#define MX21ADS_VERSION_REG (MX21_CS1_BASE_ADDR + 0x400000)
#define MX21ADS_IO_REG (MX21_CS1_BASE_ADDR + 0x800000)
#define MX21ADS_MMC_CD IMX_GPIO_NR(4, 25)
#define MX21ADS_CS8900A_IRQ_GPIO IMX_GPIO_NR(5, 11)
#define MX21ADS_MMGPIO_BASE (6 * 32)
/* MX21ADS_IO_REG bit definitions */
#define MX21ADS_IO_SD_WP (MX21ADS_MMGPIO_BASE + 0)
#define MX21ADS_IO_TP6 (MX21ADS_IO_SD_WP)
#define MX21ADS_IO_SW_SEL (MX21ADS_MMGPIO_BASE + 1)
#define MX21ADS_IO_TP7 (MX21ADS_IO_SW_SEL)
#define MX21ADS_IO_RESET_E_UART (MX21ADS_MMGPIO_BASE + 2)
#define MX21ADS_IO_RESET_BASE (MX21ADS_MMGPIO_BASE + 3)
#define MX21ADS_IO_CSI_CTL2 (MX21ADS_MMGPIO_BASE + 4)
#define MX21ADS_IO_CSI_CTL1 (MX21ADS_MMGPIO_BASE + 5)
#define MX21ADS_IO_CSI_CTL0 (MX21ADS_MMGPIO_BASE + 6)
#define MX21ADS_IO_UART1_EN (MX21ADS_MMGPIO_BASE + 7)
#define MX21ADS_IO_UART4_EN (MX21ADS_MMGPIO_BASE + 8)
#define MX21ADS_IO_LCDON (MX21ADS_MMGPIO_BASE + 9)
#define MX21ADS_IO_IRDA_EN (MX21ADS_MMGPIO_BASE + 10)
#define MX21ADS_IO_IRDA_FIR_SEL (MX21ADS_MMGPIO_BASE + 11)
#define MX21ADS_IO_IRDA_MD0_B (MX21ADS_MMGPIO_BASE + 12)
#define MX21ADS_IO_IRDA_MD1 (MX21ADS_MMGPIO_BASE + 13)
#define MX21ADS_IO_LED4_ON (MX21ADS_MMGPIO_BASE + 14)
#define MX21ADS_IO_LED3_ON (MX21ADS_MMGPIO_BASE + 15)
static const int mx21ads_pins[] __initconst = {
/* CS8900A */
(GPIO_PORTE | GPIO_GPIO | GPIO_IN | 11),
/* UART1 */
PE12_PF_UART1_TXD,
PE13_PF_UART1_RXD,
PE14_PF_UART1_CTS,
PE15_PF_UART1_RTS,
/* UART3 (IrDA) - only TXD and RXD */
PE8_PF_UART3_TXD,
PE9_PF_UART3_RXD,
/* UART4 */
PB26_AF_UART4_RTS,
PB28_AF_UART4_TXD,
PB29_AF_UART4_CTS,
PB31_AF_UART4_RXD,
/* LCDC */
PA5_PF_LSCLK,
PA6_PF_LD0,
PA7_PF_LD1,
PA8_PF_LD2,
PA9_PF_LD3,
PA10_PF_LD4,
PA11_PF_LD5,
PA12_PF_LD6,
PA13_PF_LD7,
PA14_PF_LD8,
PA15_PF_LD9,
PA16_PF_LD10,
PA17_PF_LD11,
PA18_PF_LD12,
PA19_PF_LD13,
PA20_PF_LD14,
PA21_PF_LD15,
PA22_PF_LD16,
PA24_PF_REV, /* Sharp panel dedicated signal */
PA25_PF_CLS, /* Sharp panel dedicated signal */
PA26_PF_PS, /* Sharp panel dedicated signal */
PA27_PF_SPL_SPR, /* Sharp panel dedicated signal */
PA28_PF_HSYNC,
PA29_PF_VSYNC,
PA30_PF_CONTRAST,
PA31_PF_OE_ACD,
/* MMC/SDHC */
PE18_PF_SD1_D0,
PE19_PF_SD1_D1,
PE20_PF_SD1_D2,
PE21_PF_SD1_D3,
PE22_PF_SD1_CMD,
PE23_PF_SD1_CLK,
/* NFC */
PF0_PF_NRFB,
PF1_PF_NFCE,
PF2_PF_NFWP,
PF3_PF_NFCLE,
PF4_PF_NFALE,
PF5_PF_NFRE,
PF6_PF_NFWE,
PF7_PF_NFIO0,
PF8_PF_NFIO1,
PF9_PF_NFIO2,
PF10_PF_NFIO3,
PF11_PF_NFIO4,
PF12_PF_NFIO5,
PF13_PF_NFIO6,
PF14_PF_NFIO7,
};
/* ADS's NOR flash: 2x AM29BDS128HE9VKI on 32-bit bus */
static struct physmap_flash_data mx21ads_flash_data = {
.width = 4,
};
static struct resource mx21ads_flash_resource =
DEFINE_RES_MEM(MX21_CS0_BASE_ADDR, SZ_32M);
static struct platform_device mx21ads_nor_mtd_device = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &mx21ads_flash_data,
},
.num_resources = 1,
.resource = &mx21ads_flash_resource,
};
static struct resource mx21ads_cs8900_resources[] __initdata = {
DEFINE_RES_MEM(MX21ADS_CS8900A_REG, SZ_1K),
/* irq number is run-time assigned */
DEFINE_RES_IRQ(-1),
};
static const struct platform_device_info mx21ads_cs8900_devinfo __initconst = {
.name = "cs89x0",
.id = 0,
.res = mx21ads_cs8900_resources,
.num_res = ARRAY_SIZE(mx21ads_cs8900_resources),
};
static const struct imxuart_platform_data uart_pdata_rts __initconst = {
.flags = IMXUART_HAVE_RTSCTS,
};
static const struct imxuart_platform_data uart_pdata_norts __initconst = {
};
static struct resource mx21ads_mmgpio_resource =
DEFINE_RES_MEM_NAMED(MX21ADS_IO_REG, SZ_2, "dat");
static struct bgpio_pdata mx21ads_mmgpio_pdata = {
.label = "mx21ads-mmgpio",
.base = MX21ADS_MMGPIO_BASE,
.ngpio = 16,
};
static struct platform_device mx21ads_mmgpio = {
.name = "basic-mmio-gpio",
.id = PLATFORM_DEVID_AUTO,
.resource = &mx21ads_mmgpio_resource,
.num_resources = 1,
.dev = {
.platform_data = &mx21ads_mmgpio_pdata,
},
};
static struct regulator_consumer_supply mx21ads_lcd_regulator_consumer =
REGULATOR_SUPPLY("lcd", "imx-fb.0");
static struct regulator_init_data mx21ads_lcd_regulator_init_data = {
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
},
.consumer_supplies = &mx21ads_lcd_regulator_consumer,
.num_consumer_supplies = 1,
};
static struct fixed_voltage_config mx21ads_lcd_regulator_pdata = {
.supply_name = "LCD",
.microvolts = 3300000,
.init_data = &mx21ads_lcd_regulator_init_data,
};
static struct platform_device mx21ads_lcd_regulator = {
.name = "reg-fixed-voltage",
.id = PLATFORM_DEVID_AUTO,
.dev = {
.platform_data = &mx21ads_lcd_regulator_pdata,
},
};
static struct gpiod_lookup_table mx21ads_lcd_regulator_gpiod_table = {
.dev_id = "reg-fixed-voltage.0", /* Let's hope ID 0 is what we get */
.table = {
GPIO_LOOKUP("mx21ads-mmgpio", 9, NULL, GPIO_ACTIVE_HIGH),
{ },
},
};
/*
* Connected is a portrait Sharp-QVGA display
* of type: LQ035Q7DB02
*/
static struct imx_fb_videomode mx21ads_modes[] = {
{
.mode = {
.name = "Sharp-LQ035Q7",
.refresh = 60,
.xres = 240,
.yres = 320,
.pixclock = 188679, /* in ps (5.3MHz) */
.hsync_len = 2,
.left_margin = 6,
.right_margin = 16,
.vsync_len = 1,
.upper_margin = 8,
.lower_margin = 10,
},
.pcr = 0xfb108bc7,
.bpp = 16,
},
};
static const struct imx_fb_platform_data mx21ads_fb_data __initconst = {
.mode = mx21ads_modes,
.num_modes = ARRAY_SIZE(mx21ads_modes),
.pwmr = 0x00a903ff,
.lscr1 = 0x00120300,
.dmacr = 0x00020008,
};
static int mx21ads_sdhc_get_ro(struct device *dev)
{
return gpio_get_value(MX21ADS_IO_SD_WP);
}
static int mx21ads_sdhc_init(struct device *dev, irq_handler_t detect_irq,
void *data)
{
int ret;
ret = gpio_request(MX21ADS_IO_SD_WP, "mmc-ro");
if (ret)
return ret;
return request_irq(gpio_to_irq(MX21ADS_MMC_CD), detect_irq,
IRQF_TRIGGER_FALLING, "mmc-detect", data);
}
static void mx21ads_sdhc_exit(struct device *dev, void *data)
{
free_irq(gpio_to_irq(MX21ADS_MMC_CD), data);
gpio_free(MX21ADS_IO_SD_WP);
}
static const struct imxmmc_platform_data mx21ads_sdhc_pdata __initconst = {
.ocr_avail = MMC_VDD_29_30 | MMC_VDD_30_31, /* 3.0V */
.get_ro = mx21ads_sdhc_get_ro,
.init = mx21ads_sdhc_init,
.exit = mx21ads_sdhc_exit,
};
static const struct mxc_nand_platform_data
mx21ads_nand_board_info __initconst = {
.width = 1,
.hw_ecc = 1,
};
static struct platform_device *platform_devices[] __initdata = {
&mx21ads_mmgpio,
&mx21ads_lcd_regulator,
&mx21ads_nor_mtd_device,
};
static void __init mx21ads_board_init(void)
{
imx21_soc_init();
mxc_gpio_setup_multiple_pins(mx21ads_pins, ARRAY_SIZE(mx21ads_pins),
"mx21ads");
imx21_add_imx_uart0(&uart_pdata_rts);
imx21_add_imx_uart2(&uart_pdata_norts);
imx21_add_imx_uart3(&uart_pdata_rts);
imx21_add_mxc_nand(&mx21ads_nand_board_info);
imx21_add_imx_fb(&mx21ads_fb_data);
}
static void __init mx21ads_late_init(void)
{
imx21_add_mxc_mmc(0, &mx21ads_sdhc_pdata);
gpiod_add_lookup_table(&mx21ads_lcd_regulator_gpiod_table);
platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
mx21ads_cs8900_resources[1].start =
gpio_to_irq(MX21ADS_CS8900A_IRQ_GPIO);
mx21ads_cs8900_resources[1].end =
gpio_to_irq(MX21ADS_CS8900A_IRQ_GPIO);
platform_device_register_full(&mx21ads_cs8900_devinfo);
}
static void __init mx21ads_timer_init(void)
{
mx21_clocks_init(32768, 26000000);
}
MACHINE_START(MX21ADS, "Freescale i.MX21ADS")
/* maintainer: Freescale Semiconductor, Inc. */
.atag_offset = 0x100,
.map_io = mx21_map_io,
.init_early = imx21_init_early,
.init_irq = mx21_init_irq,
.init_time = mx21ads_timer_init,
.init_machine = mx21ads_board_init,
.init_late = mx21ads_late_init,
.restart = mxc_restart,
MACHINE_END
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