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>
158 lines
3.4 KiB
C
158 lines
3.4 KiB
C
/*
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* linux/arch/arm/mach-mx1/mach-scb9328.c
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*
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* Copyright (c) 2004 Sascha Hauer <saschahauer@web.de>
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* Copyright (c) 2006-2008 Juergen Beisert <jbeisert@netscape.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <linux/platform_device.h>
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#include <linux/mtd/physmap.h>
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#include <linux/interrupt.h>
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#include <linux/dm9000.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/common.h>
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#include <mach/hardware.h>
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#include <mach/irqs.h>
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#include <mach/iomux-mx1.h>
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#include "devices-imx1.h"
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/*
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* This scb9328 has a 32MiB flash
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*/
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static struct resource flash_resource = {
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.start = MX1_CS0_PHYS,
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.end = MX1_CS0_PHYS + (32 * 1024 * 1024) - 1,
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.flags = IORESOURCE_MEM,
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};
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static struct physmap_flash_data scb_flash_data = {
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.width = 2,
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};
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static struct platform_device scb_flash_device = {
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.name = "physmap-flash",
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.id = 0,
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.dev = {
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.platform_data = &scb_flash_data,
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},
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.resource = &flash_resource,
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.num_resources = 1,
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};
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/*
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* scb9328 has a DM9000 network controller
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* connected to CS5, with 16 bit data path
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* and interrupt connected to GPIO 3
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*/
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/*
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* internal datapath is fixed 16 bit
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*/
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static struct dm9000_plat_data dm9000_platdata = {
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.flags = DM9000_PLATF_16BITONLY,
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};
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/*
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* the DM9000 drivers wants two defined address spaces
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* to gain access to address latch registers and the data path.
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*/
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static struct resource dm9000x_resources[] = {
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{
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.name = "address area",
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.start = MX1_CS5_PHYS,
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.end = MX1_CS5_PHYS + 1,
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.flags = IORESOURCE_MEM, /* address access */
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}, {
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.name = "data area",
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.start = MX1_CS5_PHYS + 4,
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.end = MX1_CS5_PHYS + 5,
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.flags = IORESOURCE_MEM, /* data access */
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}, {
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.start = IRQ_GPIOC(3),
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.end = IRQ_GPIOC(3),
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
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},
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};
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static struct platform_device dm9000x_device = {
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.name = "dm9000",
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.id = 0,
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.num_resources = ARRAY_SIZE(dm9000x_resources),
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.resource = dm9000x_resources,
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.dev = {
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.platform_data = &dm9000_platdata,
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}
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};
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static const int mxc_uart1_pins[] = {
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PC9_PF_UART1_CTS,
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PC10_PF_UART1_RTS,
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PC11_PF_UART1_TXD,
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PC12_PF_UART1_RXD,
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};
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static int uart1_mxc_init(struct platform_device *pdev)
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{
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return mxc_gpio_setup_multiple_pins(mxc_uart1_pins,
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ARRAY_SIZE(mxc_uart1_pins), "UART1");
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}
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static void uart1_mxc_exit(struct platform_device *pdev)
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{
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mxc_gpio_release_multiple_pins(mxc_uart1_pins,
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ARRAY_SIZE(mxc_uart1_pins));
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}
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static const struct imxuart_platform_data uart_pdata __initconst = {
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.init = uart1_mxc_init,
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.exit = uart1_mxc_exit,
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.flags = IMXUART_HAVE_RTSCTS,
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};
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static struct platform_device *devices[] __initdata = {
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&scb_flash_device,
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&dm9000x_device,
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};
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/*
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* scb9328_init - Init the CPU card itself
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*/
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static void __init scb9328_init(void)
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{
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imx1_soc_init();
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imx1_add_imx_uart0(&uart_pdata);
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printk(KERN_INFO"Scb9328: Adding devices\n");
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platform_add_devices(devices, ARRAY_SIZE(devices));
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}
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static void __init scb9328_timer_init(void)
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{
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mx1_clocks_init(32000);
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}
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static struct sys_timer scb9328_timer = {
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.init = scb9328_timer_init,
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};
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MACHINE_START(SCB9328, "Synertronixx scb9328")
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/* Sascha Hauer */
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.boot_params = 0x08000100,
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.map_io = mx1_map_io,
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.init_early = imx1_init_early,
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.init_irq = mx1_init_irq,
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.timer = &scb9328_timer,
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.init_machine = scb9328_init,
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MACHINE_END
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