linux/arch/arm/mach-imx/mach-pca100.c
Linus Torvalds 3645f0cd96 arm-soc: sparse IRQ conversion
The I.MX platform is getting converted to use sparse IRQs. We are doing
 this for all platforms over time, because this is one of the
 requirements for building a multiplatform kernel, and generally a good
 idea.
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Merge tag 'irq' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc sparse IRQ conversion from Arnd Bergmann:
 "The I.MX platform is getting converted to use sparse IRQs.  We are
  doing this for all platforms over time, because this is one of the
  requirements for building a multiplatform kernel, and generally a good
  idea."

* tag 'irq' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: imx: select USE_OF
  ARM: imx: Fix build error due to missing irqs.h include
  ARM: imx: enable SPARSE_IRQ for imx platform
  ARM: fiq: change FIQ_START to a variable
  tty: serial: imx: remove the use of MXC_INTERNAL_IRQS
  ARM: imx: remove unneeded mach/irq.h inclusion
  i2c: imx: remove unneeded mach/irqs.h inclusion
  ARM: imx: add a legacy irqdomain for mx31ads
  ARM: imx: add a legacy irqdomain for 3ds_debugboard
  ARM: imx: pass gpio than irq number into mxc_expio_init
  ARM: imx: leave irq_base of wm8350_platform_data uninitialized
  dma: ipu: remove the use of ipu_platform_data
  ARM: imx: move irq_domain_add_legacy call into avic driver
  ARM: imx: move irq_domain_add_legacy call into tzic driver
  gpio/mxc: move irq_domain_add_legacy call into gpio driver
  ARM: imx: eliminate macro IRQ_GPIOx()
  ARM: imx: eliminate macro IOMUX_TO_IRQ()
  ARM: imx: eliminate macro IMX_GPIO_TO_IRQ()
2012-07-23 17:36:02 -07:00

433 lines
10 KiB
C

/*
* Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
* Copyright (C) 2009 Sascha Hauer (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/platform_device.h>
#include <linux/io.h>
#include <linux/i2c.h>
#include <linux/i2c/at24.h>
#include <linux/dma-mapping.h>
#include <linux/spi/spi.h>
#include <linux/spi/eeprom.h>
#include <linux/irq.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>
#include <asm/mach/arch.h>
#include <asm/mach-types.h>
#include <mach/common.h>
#include <mach/hardware.h>
#include <mach/iomux-mx27.h>
#include <asm/mach/time.h>
#include <mach/ulpi.h>
#include "devices-imx27.h"
#define OTG_PHY_CS_GPIO (GPIO_PORTB + 23)
#define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24)
#define SPI1_SS0 (GPIO_PORTD + 28)
#define SPI1_SS1 (GPIO_PORTD + 27)
#define SD2_CD (GPIO_PORTC + 29)
static const int pca100_pins[] __initconst = {
/* UART1 */
PE12_PF_UART1_TXD,
PE13_PF_UART1_RXD,
PE14_PF_UART1_CTS,
PE15_PF_UART1_RTS,
/* SDHC */
PB4_PF_SD2_D0,
PB5_PF_SD2_D1,
PB6_PF_SD2_D2,
PB7_PF_SD2_D3,
PB8_PF_SD2_CMD,
PB9_PF_SD2_CLK,
SD2_CD | GPIO_GPIO | GPIO_IN,
/* 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,
/* SSI1 */
PC20_PF_SSI1_FS,
PC21_PF_SSI1_RXD,
PC22_PF_SSI1_TXD,
PC23_PF_SSI1_CLK,
/* onboard I2C */
PC5_PF_I2C2_SDA,
PC6_PF_I2C2_SCL,
/* external I2C */
PD17_PF_I2C_DATA,
PD18_PF_I2C_CLK,
/* SPI1 */
PD25_PF_CSPI1_RDY,
PD29_PF_CSPI1_SCLK,
PD30_PF_CSPI1_MISO,
PD31_PF_CSPI1_MOSI,
/* OTG */
OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
PC7_PF_USBOTG_DATA5,
PC8_PF_USBOTG_DATA6,
PC9_PF_USBOTG_DATA0,
PC10_PF_USBOTG_DATA2,
PC11_PF_USBOTG_DATA1,
PC12_PF_USBOTG_DATA4,
PC13_PF_USBOTG_DATA3,
PE0_PF_USBOTG_NXT,
PE1_PF_USBOTG_STP,
PE2_PF_USBOTG_DIR,
PE24_PF_USBOTG_CLK,
PE25_PF_USBOTG_DATA7,
/* USBH2 */
USBH2_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
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,
/* display */
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,
PA26_PF_PS,
PA28_PF_HSYNC,
PA29_PF_VSYNC,
PA31_PF_OE_ACD,
/* free GPIO */
GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN, /* GPIO0_IRQ */
GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN, /* GPIO1_IRQ */
GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN, /* GPIO2_IRQ */
};
static const struct imxuart_platform_data uart_pdata __initconst = {
.flags = IMXUART_HAVE_RTSCTS,
};
static const struct mxc_nand_platform_data
pca100_nand_board_info __initconst = {
.width = 1,
.hw_ecc = 1,
};
static const struct imxi2c_platform_data pca100_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 pca100_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 struct spi_eeprom at25320 = {
.name = "at25320an",
.byte_len = 4096,
.page_size = 32,
.flags = EE_ADDR2,
};
static struct spi_board_info pca100_spi_board_info[] __initdata = {
{
.modalias = "at25",
.max_speed_hz = 30000,
.bus_num = 0,
.chip_select = 1,
.platform_data = &at25320,
},
};
static int pca100_spi_cs[] = {SPI1_SS0, SPI1_SS1};
static const struct spi_imx_master pca100_spi0_data __initconst = {
.chipselect = pca100_spi_cs,
.num_chipselect = ARRAY_SIZE(pca100_spi_cs),
};
static void pca100_ac97_warm_reset(struct snd_ac97 *ac97)
{
mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);
gpio_set_value(GPIO_PORTC + 20, 1);
udelay(2);
gpio_set_value(GPIO_PORTC + 20, 0);
mxc_gpio_mode(PC20_PF_SSI1_FS);
msleep(2);
}
static void pca100_ac97_cold_reset(struct snd_ac97 *ac97)
{
mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT); /* FS */
gpio_set_value(GPIO_PORTC + 20, 0);
mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT); /* TX */
gpio_set_value(GPIO_PORTC + 22, 0);
mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT); /* reset */
gpio_set_value(GPIO_PORTC + 28, 0);
udelay(10);
gpio_set_value(GPIO_PORTC + 28, 1);
mxc_gpio_mode(PC20_PF_SSI1_FS);
mxc_gpio_mode(PC22_PF_SSI1_TXD);
msleep(2);
}
static const struct imx_ssi_platform_data pca100_ssi_pdata __initconst = {
.ac97_reset = pca100_ac97_cold_reset,
.ac97_warm_reset = pca100_ac97_warm_reset,
.flags = IMX_SSI_USE_AC97,
};
static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
void *data)
{
int ret;
ret = request_irq(gpio_to_irq(IMX_GPIO_NR(3, 29)), detect_irq,
IRQF_DISABLED | IRQF_TRIGGER_FALLING,
"imx-mmc-detect", data);
if (ret)
printk(KERN_ERR
"pca100: Failed to reuest irq for sd/mmc detection\n");
return ret;
}
static void pca100_sdhc2_exit(struct device *dev, void *data)
{
free_irq(gpio_to_irq(IMX_GPIO_NR(3, 29)), data);
}
static const struct imxmmc_platform_data sdhc_pdata __initconst = {
.init = pca100_sdhc2_init,
.exit = pca100_sdhc2_exit,
};
static int otg_phy_init(struct platform_device *pdev)
{
gpio_set_value(OTG_PHY_CS_GPIO, 0);
mdelay(10);
return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
}
static struct mxc_usbh_platform_data otg_pdata __initdata = {
.init = otg_phy_init,
.portsc = MXC_EHCI_MODE_ULPI,
};
static int usbh2_phy_init(struct platform_device *pdev)
{
gpio_set_value(USBH2_PHY_CS_GPIO, 0);
mdelay(10);
return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
}
static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
.init = usbh2_phy_init,
.portsc = MXC_EHCI_MODE_ULPI,
};
static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
.operating_mode = FSL_USB2_DR_DEVICE,
.phy_mode = FSL_USB2_PHY_ULPI,
};
static bool otg_mode_host __initdata;
static int __init pca100_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=", pca100_otg_mode);
/* framebuffer info */
static struct imx_fb_videomode pca100_fb_modes[] = {
{
.mode = {
.name = "EMERGING-ETV570G0DHU",
.refresh = 60,
.xres = 640,
.yres = 480,
.pixclock = 39722, /* in ps (25.175 MHz) */
.hsync_len = 30,
.left_margin = 114,
.right_margin = 16,
.vsync_len = 3,
.upper_margin = 32,
.lower_margin = 0,
},
/*
* TFT
* Pixel pol active high
* HSYNC active low
* VSYNC active low
* use HSYNC for ACD count
* line clock disable while idle
* always enable line clock even if no data
*/
.pcr = 0xf0c08080,
.bpp = 16,
},
};
static const struct imx_fb_platform_data pca100_fb_data __initconst = {
.mode = pca100_fb_modes,
.num_modes = ARRAY_SIZE(pca100_fb_modes),
.pwmr = 0x00A903FF,
.lscr1 = 0x00120300,
.dmacr = 0x00020010,
};
static void __init pca100_init(void)
{
int ret;
imx27_soc_init();
ret = mxc_gpio_setup_multiple_pins(pca100_pins,
ARRAY_SIZE(pca100_pins), "PCA100");
if (ret)
printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret);
imx27_add_imx_ssi(0, &pca100_ssi_pdata);
imx27_add_imx_uart0(&uart_pdata);
imx27_add_mxc_mmc(1, &sdhc_pdata);
imx27_add_mxc_nand(&pca100_nand_board_info);
/* only the i2c master 1 is used on this CPU card */
i2c_register_board_info(1, pca100_i2c_devices,
ARRAY_SIZE(pca100_i2c_devices));
imx27_add_imx_i2c(1, &pca100_i2c1_data);
mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_IN);
mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_IN);
spi_register_board_info(pca100_spi_board_info,
ARRAY_SIZE(pca100_spi_board_info));
imx27_add_spi_imx0(&pca100_spi0_data);
gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs");
gpio_direction_output(OTG_PHY_CS_GPIO, 1);
gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs");
gpio_direction_output(USBH2_PHY_CS_GPIO, 1);
if (otg_mode_host) {
otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
ULPI_OTG_DRVVBUS_EXT);
if (otg_pdata.otg)
imx27_add_mxc_ehci_otg(&otg_pdata);
} else {
gpio_set_value(OTG_PHY_CS_GPIO, 0);
imx27_add_fsl_usb2_udc(&otg_device_pdata);
}
usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
if (usbh2_pdata.otg)
imx27_add_mxc_ehci_hs(2, &usbh2_pdata);
imx27_add_imx_fb(&pca100_fb_data);
imx27_add_fec(NULL);
imx27_add_imx2_wdt();
imx27_add_mxc_w1();
}
static void __init pca100_timer_init(void)
{
mx27_clocks_init(26000000);
}
static struct sys_timer pca100_timer = {
.init = pca100_timer_init,
};
MACHINE_START(PCA100, "phyCARD-i.MX27")
.atag_offset = 0x100,
.map_io = mx27_map_io,
.init_early = imx27_init_early,
.init_irq = mx27_init_irq,
.handle_irq = imx27_handle_irq,
.init_machine = pca100_init,
.timer = &pca100_timer,
.restart = mxc_restart,
MACHINE_END