mirror of
https://github.com/torvalds/linux.git
synced 2024-12-08 03:52:16 +00:00
3645f0cd96
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. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIVAwUAUA2dgGCrR//JCVInAQJOJRAA4xWh3CUqpuJ13yk2tOBcGU9+orer93fP U3DAG6jJ75blQzfA9wBoWPjqFhJo76ZtLFA9comkGI4vH8nTNNbXr1ZNt2/PjOGS PqZIYJk/f5QqOzCd10V5bK4EVFR/mjvQ8sBP8qfaHII0GVPomfa8jnXnFnLFjreX hhucTCf4z2HBvIjfOiilPtJbFpdrQ9oquM4W4Go1lrMZMU8B+Z3ClqytoxYW2Bw3 uQ0EzFlAwaXZ1CMcDn4eQJxNt8dO4SbGI7AHd3HmW3tFaaJC9dpey/7pIoW3gyz8 2e3wrdHXCAYq3sUlwzIrROCcBfW502E+KUmDi8ePT7zgZmxAmrqRCTNEqwaaGYrS Q/mk+Kpnjvtl6w21ss1LxNHP18TNL/f8isYW9vUQG8yogWlVin6NhPvNQXDDBWoD lfAyeL5JSoVxVGxft8EhLI/inPKBnWe2heE+zrRGQzUhTuUSyspmwK6o3b7JYNTX 16fY6OhW90CaZm6r1yKZsiE96Dd63oL4OVFELsgPQdsBNdWeKmOjs6fq46Bp0Hdf SAQ543yabPkDr4ZanaNqo0s3Vu2xVnvBS4FR0gbx6+LGuagkmBpSkYnlhgNJBbdK 6D5GCRoX0ayzJvg29kKzek2h8NhGtDco4dr7K5Hl9NebeZ++CjZ7xTbFQN6olt+D 8CcIdD2J0PY= =Y2Sm -----END PGP SIGNATURE----- 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()
198 lines
5.0 KiB
C
198 lines
5.0 KiB
C
/*
|
|
* LogicPD i.MX31 SOM-LV development board support
|
|
*
|
|
* Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
|
|
*
|
|
* based on code for other MX31 boards,
|
|
*
|
|
* Copyright 2005-2007 Freescale Semiconductor
|
|
* Copyright (c) 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
|
|
* Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
|
|
*
|
|
* 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/kernel.h>
|
|
#include <linux/types.h>
|
|
#include <linux/init.h>
|
|
#include <linux/gpio.h>
|
|
#include <linux/leds.h>
|
|
#include <linux/platform_device.h>
|
|
|
|
#include <asm/mach-types.h>
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/map.h>
|
|
|
|
#include <mach/hardware.h>
|
|
#include <mach/common.h>
|
|
#include <mach/iomux-mx3.h>
|
|
#include <mach/board-mx31lite.h>
|
|
|
|
#include "devices-imx31.h"
|
|
|
|
/*
|
|
* This file contains board-specific initialization routines for the
|
|
* LogicPD i.MX31 SOM-LV development board, aka 'LiteKit'.
|
|
* If you design an own baseboard for the module, use this file as base
|
|
* for support code.
|
|
*/
|
|
|
|
static unsigned int litekit_db_board_pins[] __initdata = {
|
|
/* UART1 */
|
|
MX31_PIN_CTS1__CTS1,
|
|
MX31_PIN_RTS1__RTS1,
|
|
MX31_PIN_TXD1__TXD1,
|
|
MX31_PIN_RXD1__RXD1,
|
|
/* SPI 0 */
|
|
MX31_PIN_CSPI1_SCLK__SCLK,
|
|
MX31_PIN_CSPI1_MOSI__MOSI,
|
|
MX31_PIN_CSPI1_MISO__MISO,
|
|
MX31_PIN_CSPI1_SPI_RDY__SPI_RDY,
|
|
MX31_PIN_CSPI1_SS0__SS0,
|
|
MX31_PIN_CSPI1_SS1__SS1,
|
|
MX31_PIN_CSPI1_SS2__SS2,
|
|
/* SDHC1 */
|
|
MX31_PIN_SD1_DATA0__SD1_DATA0,
|
|
MX31_PIN_SD1_DATA1__SD1_DATA1,
|
|
MX31_PIN_SD1_DATA2__SD1_DATA2,
|
|
MX31_PIN_SD1_DATA3__SD1_DATA3,
|
|
MX31_PIN_SD1_CLK__SD1_CLK,
|
|
MX31_PIN_SD1_CMD__SD1_CMD,
|
|
};
|
|
|
|
/* UART */
|
|
static const struct imxuart_platform_data uart_pdata __initconst = {
|
|
.flags = IMXUART_HAVE_RTSCTS,
|
|
};
|
|
|
|
/* MMC */
|
|
|
|
static int gpio_det, gpio_wp;
|
|
|
|
#define MMC_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
|
|
PAD_CTL_ODE_CMOS)
|
|
|
|
static int mxc_mmc1_get_ro(struct device *dev)
|
|
{
|
|
return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_GPIO1_6));
|
|
}
|
|
|
|
static int mxc_mmc1_init(struct device *dev,
|
|
irq_handler_t detect_irq, void *data)
|
|
{
|
|
int ret;
|
|
|
|
gpio_det = IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1);
|
|
gpio_wp = IOMUX_TO_GPIO(MX31_PIN_GPIO1_6);
|
|
|
|
mxc_iomux_set_pad(MX31_PIN_SD1_DATA0,
|
|
MMC_PAD_CFG | PAD_CTL_PUE_PUD | PAD_CTL_100K_PU);
|
|
mxc_iomux_set_pad(MX31_PIN_SD1_DATA1,
|
|
MMC_PAD_CFG | PAD_CTL_PUE_PUD | PAD_CTL_100K_PU);
|
|
mxc_iomux_set_pad(MX31_PIN_SD1_DATA2,
|
|
MMC_PAD_CFG | PAD_CTL_PUE_PUD | PAD_CTL_100K_PU);
|
|
mxc_iomux_set_pad(MX31_PIN_SD1_DATA3,
|
|
MMC_PAD_CFG | PAD_CTL_PUE_PUD | PAD_CTL_100K_PU);
|
|
mxc_iomux_set_pad(MX31_PIN_SD1_CMD,
|
|
MMC_PAD_CFG | PAD_CTL_PUE_PUD | PAD_CTL_100K_PU);
|
|
mxc_iomux_set_pad(MX31_PIN_SD1_CLK, MMC_PAD_CFG);
|
|
|
|
ret = gpio_request(gpio_det, "MMC detect");
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = gpio_request(gpio_wp, "MMC w/p");
|
|
if (ret)
|
|
goto exit_free_det;
|
|
|
|
gpio_direction_input(gpio_det);
|
|
gpio_direction_input(gpio_wp);
|
|
|
|
ret = request_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)),
|
|
detect_irq,
|
|
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
|
|
"MMC detect", data);
|
|
if (ret)
|
|
goto exit_free_wp;
|
|
|
|
return 0;
|
|
|
|
exit_free_wp:
|
|
gpio_free(gpio_wp);
|
|
|
|
exit_free_det:
|
|
gpio_free(gpio_det);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void mxc_mmc1_exit(struct device *dev, void *data)
|
|
{
|
|
gpio_free(gpio_det);
|
|
gpio_free(gpio_wp);
|
|
free_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)), data);
|
|
}
|
|
|
|
static const struct imxmmc_platform_data mmc_pdata __initconst = {
|
|
.get_ro = mxc_mmc1_get_ro,
|
|
.init = mxc_mmc1_init,
|
|
.exit = mxc_mmc1_exit,
|
|
};
|
|
|
|
/* SPI */
|
|
|
|
static int spi_internal_chipselect[] = {
|
|
MXC_SPI_CS(0),
|
|
MXC_SPI_CS(1),
|
|
MXC_SPI_CS(2),
|
|
};
|
|
|
|
static const struct spi_imx_master spi0_pdata __initconst = {
|
|
.chipselect = spi_internal_chipselect,
|
|
.num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
|
|
};
|
|
|
|
/* GPIO LEDs */
|
|
|
|
static const struct gpio_led litekit_leds[] __initconst = {
|
|
{
|
|
.name = "GPIO0",
|
|
.gpio = IOMUX_TO_GPIO(MX31_PIN_COMPARE),
|
|
.active_low = 1,
|
|
.default_state = LEDS_GPIO_DEFSTATE_OFF,
|
|
},
|
|
{
|
|
.name = "GPIO1",
|
|
.gpio = IOMUX_TO_GPIO(MX31_PIN_CAPTURE),
|
|
.active_low = 1,
|
|
.default_state = LEDS_GPIO_DEFSTATE_OFF,
|
|
}
|
|
};
|
|
|
|
static const struct gpio_led_platform_data
|
|
litekit_led_platform_data __initconst = {
|
|
.leds = litekit_leds,
|
|
.num_leds = ARRAY_SIZE(litekit_leds),
|
|
};
|
|
|
|
void __init mx31lite_db_init(void)
|
|
{
|
|
mxc_iomux_setup_multiple_pins(litekit_db_board_pins,
|
|
ARRAY_SIZE(litekit_db_board_pins),
|
|
"development board pins");
|
|
imx31_add_imx_uart0(&uart_pdata);
|
|
imx31_add_mxc_mmc(0, &mmc_pdata);
|
|
imx31_add_spi_imx0(&spi0_pdata);
|
|
gpio_led_register_device(-1, &litekit_led_platform_data);
|
|
imx31_add_imx2_wdt();
|
|
imx31_add_mxc_rtc();
|
|
}
|