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>
178 lines
4.2 KiB
C
178 lines
4.2 KiB
C
/*
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* Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.
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* Copyright (C) 2010 Jason Wang <jason77.wang@gmail.com>
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*
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* The code contained herein is licensed under the GNU General Public
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* License. You may obtain a copy of the GNU General Public License
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* Version 2 or later at the following locations:
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*
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* http://www.opensource.org/licenses/gpl-license.html
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* http://www.gnu.org/copyleft/gpl.html
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*/
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#include <linux/irq.h>
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#include <linux/platform_device.h>
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#include <linux/spi/spi.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/time.h>
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#include <mach/hardware.h>
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#include <mach/common.h>
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#include <mach/iomux-mx51.h>
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#include <mach/3ds_debugboard.h>
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#include "devices-imx51.h"
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#include "devices.h"
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#define EXPIO_PARENT_INT (MXC_INTERNAL_IRQS + GPIO_PORTA + 6)
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#define MX51_3DS_ECSPI2_CS (GPIO_PORTC + 28)
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static iomux_v3_cfg_t mx51_3ds_pads[] = {
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/* UART1 */
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MX51_PAD_UART1_RXD__UART1_RXD,
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MX51_PAD_UART1_TXD__UART1_TXD,
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MX51_PAD_UART1_RTS__UART1_RTS,
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MX51_PAD_UART1_CTS__UART1_CTS,
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/* UART2 */
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MX51_PAD_UART2_RXD__UART2_RXD,
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MX51_PAD_UART2_TXD__UART2_TXD,
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MX51_PAD_EIM_D25__UART2_CTS,
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MX51_PAD_EIM_D26__UART2_RTS,
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/* UART3 */
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MX51_PAD_UART3_RXD__UART3_RXD,
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MX51_PAD_UART3_TXD__UART3_TXD,
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MX51_PAD_EIM_D24__UART3_CTS,
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MX51_PAD_EIM_D27__UART3_RTS,
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/* CPLD PARENT IRQ PIN */
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MX51_PAD_GPIO1_6__GPIO1_6,
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/* KPP */
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MX51_PAD_KEY_ROW0__KEY_ROW0,
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MX51_PAD_KEY_ROW1__KEY_ROW1,
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MX51_PAD_KEY_ROW2__KEY_ROW2,
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MX51_PAD_KEY_ROW3__KEY_ROW3,
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MX51_PAD_KEY_COL0__KEY_COL0,
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MX51_PAD_KEY_COL1__KEY_COL1,
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MX51_PAD_KEY_COL2__KEY_COL2,
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MX51_PAD_KEY_COL3__KEY_COL3,
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MX51_PAD_KEY_COL4__KEY_COL4,
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MX51_PAD_KEY_COL5__KEY_COL5,
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/* eCSPI2 */
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MX51_PAD_NANDF_RB2__ECSPI2_SCLK,
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MX51_PAD_NANDF_RB3__ECSPI2_MISO,
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MX51_PAD_NANDF_D15__ECSPI2_MOSI,
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MX51_PAD_NANDF_D12__GPIO3_28,
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};
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/* Serial ports */
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static const struct imxuart_platform_data uart_pdata __initconst = {
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.flags = IMXUART_HAVE_RTSCTS,
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};
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static int mx51_3ds_board_keymap[] = {
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KEY(0, 0, KEY_1),
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KEY(0, 1, KEY_2),
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KEY(0, 2, KEY_3),
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KEY(0, 3, KEY_F1),
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KEY(0, 4, KEY_UP),
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KEY(0, 5, KEY_F2),
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KEY(1, 0, KEY_4),
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KEY(1, 1, KEY_5),
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KEY(1, 2, KEY_6),
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KEY(1, 3, KEY_LEFT),
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KEY(1, 4, KEY_SELECT),
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KEY(1, 5, KEY_RIGHT),
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KEY(2, 0, KEY_7),
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KEY(2, 1, KEY_8),
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KEY(2, 2, KEY_9),
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KEY(2, 3, KEY_F3),
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KEY(2, 4, KEY_DOWN),
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KEY(2, 5, KEY_F4),
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KEY(3, 0, KEY_0),
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KEY(3, 1, KEY_OK),
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KEY(3, 2, KEY_ESC),
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KEY(3, 3, KEY_ENTER),
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KEY(3, 4, KEY_MENU),
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KEY(3, 5, KEY_BACK)
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};
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static const struct matrix_keymap_data mx51_3ds_map_data __initconst = {
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.keymap = mx51_3ds_board_keymap,
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.keymap_size = ARRAY_SIZE(mx51_3ds_board_keymap),
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};
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static int mx51_3ds_spi2_cs[] = {
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MXC_SPI_CS(0),
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MX51_3DS_ECSPI2_CS,
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};
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static const struct spi_imx_master mx51_3ds_ecspi2_pdata __initconst = {
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.chipselect = mx51_3ds_spi2_cs,
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.num_chipselect = ARRAY_SIZE(mx51_3ds_spi2_cs),
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};
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static struct spi_board_info mx51_3ds_spi_nor_device[] = {
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{
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.modalias = "m25p80",
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.max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */
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.bus_num = 1,
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.chip_select = 1,
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.mode = SPI_MODE_0,
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.platform_data = NULL,},
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};
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/*
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* Board specific initialization.
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*/
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static void __init mx51_3ds_init(void)
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{
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imx51_soc_init();
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mxc_iomux_v3_setup_multiple_pads(mx51_3ds_pads,
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ARRAY_SIZE(mx51_3ds_pads));
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imx51_add_imx_uart(0, &uart_pdata);
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imx51_add_imx_uart(1, &uart_pdata);
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imx51_add_imx_uart(2, &uart_pdata);
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imx51_add_ecspi(1, &mx51_3ds_ecspi2_pdata);
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spi_register_board_info(mx51_3ds_spi_nor_device,
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ARRAY_SIZE(mx51_3ds_spi_nor_device));
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if (mxc_expio_init(MX51_CS5_BASE_ADDR, EXPIO_PARENT_INT))
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printk(KERN_WARNING "Init of the debugboard failed, all "
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"devices on the board are unusable.\n");
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imx51_add_sdhci_esdhc_imx(0, NULL);
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imx51_add_imx_keypad(&mx51_3ds_map_data);
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imx51_add_imx2_wdt(0, NULL);
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}
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static void __init mx51_3ds_timer_init(void)
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{
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mx51_clocks_init(32768, 24000000, 22579200, 0);
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}
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static struct sys_timer mx51_3ds_timer = {
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.init = mx51_3ds_timer_init,
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};
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MACHINE_START(MX51_3DS, "Freescale MX51 3-Stack Board")
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/* Maintainer: Freescale Semiconductor, Inc. */
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.boot_params = MX51_PHYS_OFFSET + 0x100,
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.map_io = mx51_map_io,
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.init_early = imx51_init_early,
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.init_irq = mx51_init_irq,
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.timer = &mx51_3ds_timer,
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.init_machine = mx51_3ds_init,
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MACHINE_END
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