mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 11:44:01 +08:00
b78d8e59a6
The patch makes necessary changes on gpio-mxc as below to turn it into an upstanding gpio driver. * Add a list to save all mx2 ports references, so that mx2_gpio_irq_handler can walk through all interrupt status registers * Use readl/writel to replace mach-specific accessors __raw_readl/__raw_writel * Change mxc_gpio_init into mxc_gpio_probe function * Move "struct mxc_gpio_port" into gpio-mxc.c, as it needs not to be public at all, and also make some other cleanup on plat-mxc/include/mach/gpio.h at the same time And the patch then migrates mach-imx and mach-mx5 to the updated driver by adding corresponding platform devices. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
277 lines
6.1 KiB
C
277 lines
6.1 KiB
C
/*
|
|
* 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/map.h>
|
|
#include <linux/mtd/partitions.h>
|
|
#include <linux/mtd/physmap.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/irq.h>
|
|
#include <mach/common.h>
|
|
#include <mach/hardware.h>
|
|
#include <asm/mach-types.h>
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/time.h>
|
|
#include <asm/mach/map.h>
|
|
#include <linux/gpio.h>
|
|
#include <mach/iomux-mx27.h>
|
|
#include <linux/i2c/pca953x.h>
|
|
|
|
#include "devices-imx27.h"
|
|
|
|
static const int mxt_td60_pins[] __initconst = {
|
|
/* UART0 */
|
|
PE12_PF_UART1_TXD,
|
|
PE13_PF_UART1_RXD,
|
|
PE14_PF_UART1_CTS,
|
|
PE15_PF_UART1_RTS,
|
|
/* UART1 */
|
|
PE3_PF_UART2_CTS,
|
|
PE4_PF_UART2_RTS,
|
|
PE6_PF_UART2_TXD,
|
|
PE7_PF_UART2_RXD,
|
|
/* UART2 */
|
|
PE8_PF_UART3_TXD,
|
|
PE9_PF_UART3_RXD,
|
|
PE10_PF_UART3_CTS,
|
|
PE11_PF_UART3_RTS,
|
|
/* FEC */
|
|
PD0_AIN_FEC_TXD0,
|
|
PD1_AIN_FEC_TXD1,
|
|
PD2_AIN_FEC_TXD2,
|
|
PD3_AIN_FEC_TXD3,
|
|
PD4_AOUT_FEC_RX_ER,
|
|
PD5_AOUT_FEC_RXD1,
|
|
PD6_AOUT_FEC_RXD2,
|
|
PD7_AOUT_FEC_RXD3,
|
|
PD8_AF_FEC_MDIO,
|
|
PD9_AIN_FEC_MDC,
|
|
PD10_AOUT_FEC_CRS,
|
|
PD11_AOUT_FEC_TX_CLK,
|
|
PD12_AOUT_FEC_RXD0,
|
|
PD13_AOUT_FEC_RX_DV,
|
|
PD14_AOUT_FEC_RX_CLK,
|
|
PD15_AOUT_FEC_COL,
|
|
PD16_AIN_FEC_TX_ER,
|
|
PF23_AIN_FEC_TX_EN,
|
|
/* I2C1 */
|
|
PD17_PF_I2C_DATA,
|
|
PD18_PF_I2C_CLK,
|
|
/* I2C2 */
|
|
PC5_PF_I2C2_SDA,
|
|
PC6_PF_I2C2_SCL,
|
|
/* FB */
|
|
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,
|
|
PA23_PF_LD17,
|
|
PA25_PF_CLS,
|
|
PA27_PF_SPL_SPR,
|
|
PA28_PF_HSYNC,
|
|
PA29_PF_VSYNC,
|
|
PA30_PF_CONTRAST,
|
|
PA31_PF_OE_ACD,
|
|
/* OWIRE */
|
|
PE16_AF_OWIRE,
|
|
/* SDHC1*/
|
|
PE18_PF_SD1_D0,
|
|
PE19_PF_SD1_D1,
|
|
PE20_PF_SD1_D2,
|
|
PE21_PF_SD1_D3,
|
|
PE22_PF_SD1_CMD,
|
|
PE23_PF_SD1_CLK,
|
|
PF8_AF_ATA_IORDY,
|
|
/* SDHC2*/
|
|
PB4_PF_SD2_D0,
|
|
PB5_PF_SD2_D1,
|
|
PB6_PF_SD2_D2,
|
|
PB7_PF_SD2_D3,
|
|
PB8_PF_SD2_CMD,
|
|
PB9_PF_SD2_CLK,
|
|
};
|
|
|
|
static const struct mxc_nand_platform_data
|
|
mxt_td60_nand_board_info __initconst = {
|
|
.width = 1,
|
|
.hw_ecc = 1,
|
|
};
|
|
|
|
static const struct imxi2c_platform_data mxt_td60_i2c0_data __initconst = {
|
|
.bitrate = 100000,
|
|
};
|
|
|
|
/* PCA9557 */
|
|
static int mxt_td60_pca9557_setup(struct i2c_client *client,
|
|
unsigned gpio_base, unsigned ngpio,
|
|
void *context)
|
|
{
|
|
static int mxt_td60_gpio_value[] = {
|
|
-1, -1, -1, -1, -1, -1, -1, 1
|
|
};
|
|
int n;
|
|
|
|
for (n = 0; n < ARRAY_SIZE(mxt_td60_gpio_value); ++n) {
|
|
gpio_request(gpio_base + n, "MXT_TD60 GPIO Exp");
|
|
if (mxt_td60_gpio_value[n] < 0)
|
|
gpio_direction_input(gpio_base + n);
|
|
else
|
|
gpio_direction_output(gpio_base + n,
|
|
mxt_td60_gpio_value[n]);
|
|
gpio_export(gpio_base + n, 0);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct pca953x_platform_data mxt_td60_pca9557_pdata = {
|
|
.gpio_base = 240, /* place PCA9557 after all MX27 gpio pins */
|
|
.invert = 0, /* Do not invert */
|
|
.setup = mxt_td60_pca9557_setup,
|
|
};
|
|
|
|
static struct i2c_board_info mxt_td60_i2c_devices[] = {
|
|
{
|
|
I2C_BOARD_INFO("pca9557", 0x18),
|
|
.platform_data = &mxt_td60_pca9557_pdata,
|
|
},
|
|
};
|
|
|
|
static const struct imxi2c_platform_data mxt_td60_i2c1_data __initconst = {
|
|
.bitrate = 100000,
|
|
};
|
|
|
|
static struct i2c_board_info mxt_td60_i2c2_devices[] = {
|
|
};
|
|
|
|
static struct imx_fb_videomode mxt_td60_modes[] = {
|
|
{
|
|
.mode = {
|
|
.name = "Chimei LW700AT9003",
|
|
.refresh = 60,
|
|
.xres = 800,
|
|
.yres = 480,
|
|
.pixclock = 30303,
|
|
.hsync_len = 64,
|
|
.left_margin = 0x67,
|
|
.right_margin = 0x68,
|
|
.vsync_len = 16,
|
|
.upper_margin = 0x0f,
|
|
.lower_margin = 0x0f,
|
|
},
|
|
.bpp = 16,
|
|
.pcr = 0xFA208B83,
|
|
},
|
|
};
|
|
|
|
static const struct imx_fb_platform_data mxt_td60_fb_data __initconst = {
|
|
.mode = mxt_td60_modes,
|
|
.num_modes = ARRAY_SIZE(mxt_td60_modes),
|
|
|
|
/*
|
|
* - HSYNC active high
|
|
* - VSYNC active high
|
|
* - clk notenabled while idle
|
|
* - clock inverted
|
|
* - data not inverted
|
|
* - data enable low active
|
|
* - enable sharp mode
|
|
*/
|
|
.pwmr = 0x00A903FF,
|
|
.lscr1 = 0x00120300,
|
|
.dmacr = 0x00020010,
|
|
};
|
|
|
|
static int mxt_td60_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
|
|
void *data)
|
|
{
|
|
return request_irq(IRQ_GPIOF(8), detect_irq, IRQF_TRIGGER_FALLING,
|
|
"sdhc1-card-detect", data);
|
|
}
|
|
|
|
static void mxt_td60_sdhc1_exit(struct device *dev, void *data)
|
|
{
|
|
free_irq(IRQ_GPIOF(8), data);
|
|
}
|
|
|
|
static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
|
|
.init = mxt_td60_sdhc1_init,
|
|
.exit = mxt_td60_sdhc1_exit,
|
|
};
|
|
|
|
static const struct imxuart_platform_data uart_pdata __initconst = {
|
|
.flags = IMXUART_HAVE_RTSCTS,
|
|
};
|
|
|
|
static void __init mxt_td60_board_init(void)
|
|
{
|
|
imx27_soc_init();
|
|
|
|
mxc_gpio_setup_multiple_pins(mxt_td60_pins, ARRAY_SIZE(mxt_td60_pins),
|
|
"MXT_TD60");
|
|
|
|
imx27_add_imx_uart0(&uart_pdata);
|
|
imx27_add_imx_uart1(&uart_pdata);
|
|
imx27_add_imx_uart2(&uart_pdata);
|
|
imx27_add_mxc_nand(&mxt_td60_nand_board_info);
|
|
|
|
i2c_register_board_info(0, mxt_td60_i2c_devices,
|
|
ARRAY_SIZE(mxt_td60_i2c_devices));
|
|
|
|
i2c_register_board_info(1, mxt_td60_i2c2_devices,
|
|
ARRAY_SIZE(mxt_td60_i2c2_devices));
|
|
|
|
imx27_add_imx_i2c(0, &mxt_td60_i2c0_data);
|
|
imx27_add_imx_i2c(1, &mxt_td60_i2c1_data);
|
|
imx27_add_imx_fb(&mxt_td60_fb_data);
|
|
imx27_add_mxc_mmc(0, &sdhc1_pdata);
|
|
imx27_add_fec(NULL);
|
|
}
|
|
|
|
static void __init mxt_td60_timer_init(void)
|
|
{
|
|
mx27_clocks_init(26000000);
|
|
}
|
|
|
|
static struct sys_timer mxt_td60_timer = {
|
|
.init = mxt_td60_timer_init,
|
|
};
|
|
|
|
MACHINE_START(MXT_TD60, "Maxtrack i-MXT TD60")
|
|
/* maintainer: Maxtrack Industrial */
|
|
.boot_params = MX27_PHYS_OFFSET + 0x100,
|
|
.map_io = mx27_map_io,
|
|
.init_early = imx27_init_early,
|
|
.init_irq = mx27_init_irq,
|
|
.timer = &mxt_td60_timer,
|
|
.init_machine = mxt_td60_board_init,
|
|
MACHINE_END
|