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kernel-fxtec-pro1x/arch/arm/mach-imx/mach-pcm038.c
Shawn Guo b78d8e59a6 gpio/mxc: Change gpio-mxc into an upstanding gpio driver 
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>
2011-06-06 10:01:19 -06:00

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/*
* Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
* Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
*
* 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/i2c.h>
#include <linux/i2c/at24.h>
#include <linux/io.h>
#include <linux/mtd/plat-ram.h>
#include <linux/mtd/physmap.h>
#include <linux/platform_device.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/mc13783.h>
#include <linux/spi/spi.h>
#include <linux/irq.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <mach/board-pcm038.h>
#include <mach/common.h>
#include <mach/hardware.h>
#include <mach/iomux-mx27.h>
#include <mach/ulpi.h>
#include "devices-imx27.h"
static const int pcm038_pins[] __initconst = {
/* UART1 */
PE12_PF_UART1_TXD,
PE13_PF_UART1_RXD,
PE14_PF_UART1_CTS,
PE15_PF_UART1_RTS,
/* UART2 */
PE3_PF_UART2_CTS,
PE4_PF_UART2_RTS,
PE6_PF_UART2_TXD,
PE7_PF_UART2_RXD,
/* UART3 */
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,
/* I2C2 */
PC5_PF_I2C2_SDA,
PC6_PF_I2C2_SCL,
/* SPI1 */
PD25_PF_CSPI1_RDY,
PD29_PF_CSPI1_SCLK,
PD30_PF_CSPI1_MISO,
PD31_PF_CSPI1_MOSI,
/* SSI1 */
PC20_PF_SSI1_FS,
PC21_PF_SSI1_RXD,
PC22_PF_SSI1_TXD,
PC23_PF_SSI1_CLK,
/* SSI4 */
PC16_PF_SSI4_FS,
PC17_PF_SSI4_RXD,
PC18_PF_SSI4_TXD,
PC19_PF_SSI4_CLK,
/* USB host */
PA0_PF_USBH2_CLK,
PA1_PF_USBH2_DIR,
PA2_PF_USBH2_DATA7,
PA3_PF_USBH2_NXT,
PA4_PF_USBH2_STP,
PD19_AF_USBH2_DATA4,
PD20_AF_USBH2_DATA3,
PD21_AF_USBH2_DATA6,
PD22_AF_USBH2_DATA0,
PD23_AF_USBH2_DATA2,
PD24_AF_USBH2_DATA1,
PD26_AF_USBH2_DATA5,
};
/*
* Phytec's PCM038 comes with 2MiB battery buffered SRAM,
* 16 bit width
*/
static struct platdata_mtd_ram pcm038_sram_data = {
.bankwidth = 2,
};
static struct resource pcm038_sram_resource = {
.start = MX27_CS1_BASE_ADDR,
.end = MX27_CS1_BASE_ADDR + 512 * 1024 - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device pcm038_sram_mtd_device = {
.name = "mtd-ram",
.id = 0,
.dev = {
.platform_data = &pcm038_sram_data,
},
.num_resources = 1,
.resource = &pcm038_sram_resource,
};
/*
* Phytec's phyCORE-i.MX27 comes with 32MiB flash,
* 16 bit width
*/
static struct physmap_flash_data pcm038_flash_data = {
.width = 2,
};
static struct resource pcm038_flash_resource = {
.start = 0xc0000000,
.end = 0xc1ffffff,
.flags = IORESOURCE_MEM,
};
static struct platform_device pcm038_nor_mtd_device = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &pcm038_flash_data,
},
.num_resources = 1,
.resource = &pcm038_flash_resource,
};
static const struct imxuart_platform_data uart_pdata __initconst = {
.flags = IMXUART_HAVE_RTSCTS,
};
static const struct mxc_nand_platform_data
pcm038_nand_board_info __initconst = {
.width = 1,
.hw_ecc = 1,
};
static struct platform_device *platform_devices[] __initdata = {
&pcm038_nor_mtd_device,
&pcm038_sram_mtd_device,
};
/* On pcm038 there's a sram attached to CS1, we enable the chipselect here and
* setup other stuffs to access the sram. */
static void __init pcm038_init_sram(void)
{
mx27_setup_weimcs(1, 0x0000d843, 0x22252521, 0x22220a00);
}
static const struct imxi2c_platform_data pcm038_i2c1_data __initconst = {
.bitrate = 100000,
};
static struct at24_platform_data board_eeprom = {
.byte_len = 4096,
.page_size = 32,
.flags = AT24_FLAG_ADDR16,
};
static struct i2c_board_info pcm038_i2c_devices[] = {
{
I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
.platform_data = &board_eeprom,
}, {
I2C_BOARD_INFO("pcf8563", 0x51),
}, {
I2C_BOARD_INFO("lm75", 0x4a),
}
};
static int pcm038_spi_cs[] = {GPIO_PORTD + 28};
static const struct spi_imx_master pcm038_spi0_data __initconst = {
.chipselect = pcm038_spi_cs,
.num_chipselect = ARRAY_SIZE(pcm038_spi_cs),
};
static struct regulator_consumer_supply sdhc1_consumers[] = {
{
.dev_name = "mxc-mmc.1",
.supply = "sdhc_vcc",
},
};
static struct regulator_init_data sdhc1_data = {
.constraints = {
.min_uV = 3000000,
.max_uV = 3400000,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
.valid_modes_mask = REGULATOR_MODE_NORMAL |
REGULATOR_MODE_FAST,
.always_on = 0,
.boot_on = 0,
},
.num_consumer_supplies = ARRAY_SIZE(sdhc1_consumers),
.consumer_supplies = sdhc1_consumers,
};
static struct regulator_consumer_supply cam_consumers[] = {
{
.dev = NULL,
.supply = "imx_cam_vcc",
},
};
static struct regulator_init_data cam_data = {
.constraints = {
.min_uV = 3000000,
.max_uV = 3400000,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
.valid_modes_mask = REGULATOR_MODE_NORMAL |
REGULATOR_MODE_FAST,
.always_on = 0,
.boot_on = 0,
},
.num_consumer_supplies = ARRAY_SIZE(cam_consumers),
.consumer_supplies = cam_consumers,
};
static struct mc13xxx_regulator_init_data pcm038_regulators[] = {
{
.id = MC13783_REG_VCAM,
.init_data = &cam_data,
}, {
.id = MC13783_REG_VMMC1,
.init_data = &sdhc1_data,
},
};
static struct mc13xxx_platform_data pcm038_pmic = {
.regulators = {
.regulators = pcm038_regulators,
.num_regulators = ARRAY_SIZE(pcm038_regulators),
},
.flags = MC13783_USE_ADC | MC13783_USE_REGULATOR |
MC13783_USE_TOUCHSCREEN,
};
static struct spi_board_info pcm038_spi_board_info[] __initdata = {
{
.modalias = "mc13783",
.irq = IRQ_GPIOB(23),
.max_speed_hz = 300000,
.bus_num = 0,
.chip_select = 0,
.platform_data = &pcm038_pmic,
.mode = SPI_CS_HIGH,
}
};
static int pcm038_usbh2_init(struct platform_device *pdev)
{
return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
MXC_EHCI_INTERFACE_DIFF_UNI);
}
static const struct mxc_usbh_platform_data usbh2_pdata __initconst = {
.init = pcm038_usbh2_init,
.portsc = MXC_EHCI_MODE_ULPI,
};
static void __init pcm038_init(void)
{
imx27_soc_init();
mxc_gpio_setup_multiple_pins(pcm038_pins, ARRAY_SIZE(pcm038_pins),
"PCM038");
pcm038_init_sram();
imx27_add_imx_uart0(&uart_pdata);
imx27_add_imx_uart1(&uart_pdata);
imx27_add_imx_uart2(&uart_pdata);
mxc_gpio_mode(PE16_AF_OWIRE);
imx27_add_mxc_nand(&pcm038_nand_board_info);
/* only the i2c master 1 is used on this CPU card */
i2c_register_board_info(1, pcm038_i2c_devices,
ARRAY_SIZE(pcm038_i2c_devices));
imx27_add_imx_i2c(1, &pcm038_i2c1_data);
/* PE18 for user-LED D40 */
mxc_gpio_mode(GPIO_PORTE | 18 | GPIO_GPIO | GPIO_OUT);
mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);
/* MC13783 IRQ */
mxc_gpio_mode(GPIO_PORTB | 23 | GPIO_GPIO | GPIO_IN);
imx27_add_spi_imx0(&pcm038_spi0_data);
spi_register_board_info(pcm038_spi_board_info,
ARRAY_SIZE(pcm038_spi_board_info));
imx27_add_mxc_ehci_hs(2, &usbh2_pdata);
imx27_add_fec(NULL);
platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
imx27_add_imx2_wdt(NULL);
imx27_add_mxc_w1(NULL);
#ifdef CONFIG_MACH_PCM970_BASEBOARD
pcm970_baseboard_init();
#endif
}
static void __init pcm038_timer_init(void)
{
mx27_clocks_init(26000000);
}
static struct sys_timer pcm038_timer = {
.init = pcm038_timer_init,
};
MACHINE_START(PCM038, "phyCORE-i.MX27")
.boot_params = MX27_PHYS_OFFSET + 0x100,
.map_io = mx27_map_io,
.init_early = imx27_init_early,
.init_irq = mx27_init_irq,
.timer = &pcm038_timer,
.init_machine = pcm038_init,
MACHINE_END
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