mirror of
https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
synced 2024-10-21 02:49:11 +00:00
5b80234435
Patch from Sascha Hauer This patch moves the i.MX uart resources and the gpio pin setup to the board files. This allows the boards to decide how many internal uarts are connected to the outside world and whether they use rts/cts or not. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
170 lines
3.6 KiB
C
170 lines
3.6 KiB
C
/*
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* arch/arm/mach-imx/mx1ads.c
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*
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* Initially based on:
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* linux-2.6.7-imx/arch/arm/mach-imx/scb9328.c
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* Copyright (c) 2004 Sascha Hauer <sascha@saschahauer.de>
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*
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* 2004 (c) MontaVista Software, Inc.
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#include <linux/device.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <asm/system.h>
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#include <asm/hardware.h>
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#include <asm/irq.h>
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#include <asm/pgtable.h>
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#include <asm/page.h>
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#include <asm/mach/map.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/arch/mmc.h>
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#include <asm/arch/imx-uart.h>
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#include <linux/interrupt.h>
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#include "generic.h"
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static struct resource cs89x0_resources[] = {
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[0] = {
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.start = IMX_CS4_PHYS + 0x300,
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.end = IMX_CS4_PHYS + 0x300 + 16,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = IRQ_GPIOC(17),
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.end = IRQ_GPIOC(17),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device cs89x0_device = {
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.name = "cirrus-cs89x0",
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.num_resources = ARRAY_SIZE(cs89x0_resources),
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.resource = cs89x0_resources,
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};
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static struct imxuart_platform_data uart_pdata = {
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.flags = IMXUART_HAVE_RTSCTS,
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};
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static struct resource imx_uart1_resources[] = {
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[0] = {
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.start = 0x00206000,
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.end = 0x002060FF,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = (UART1_MINT_RX),
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.end = (UART1_MINT_RX),
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.flags = IORESOURCE_IRQ,
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},
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[2] = {
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.start = (UART1_MINT_TX),
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.end = (UART1_MINT_TX),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device imx_uart1_device = {
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.name = "imx-uart",
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.id = 0,
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.num_resources = ARRAY_SIZE(imx_uart1_resources),
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.resource = imx_uart1_resources,
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.dev = {
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.platform_data = &uart_pdata,
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}
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};
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static struct resource imx_uart2_resources[] = {
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[0] = {
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.start = 0x00207000,
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.end = 0x002070FF,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = (UART2_MINT_RX),
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.end = (UART2_MINT_RX),
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.flags = IORESOURCE_IRQ,
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},
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[2] = {
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.start = (UART2_MINT_TX),
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.end = (UART2_MINT_TX),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device imx_uart2_device = {
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.name = "imx-uart",
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.id = 1,
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.num_resources = ARRAY_SIZE(imx_uart2_resources),
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.resource = imx_uart2_resources,
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.dev = {
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.platform_data = &uart_pdata,
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}
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};
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static struct platform_device *devices[] __initdata = {
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&cs89x0_device,
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&imx_uart1_device,
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&imx_uart2_device,
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};
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#ifdef CONFIG_MMC_IMX
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static int mx1ads_mmc_card_present(void)
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{
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/* MMC/SD Card Detect is PB 20 on MX1ADS V1.0.7 */
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return (SSR(1) & (1 << 20) ? 0 : 1);
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}
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static struct imxmmc_platform_data mx1ads_mmc_info = {
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.card_present = mx1ads_mmc_card_present,
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};
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#endif
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static void __init
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mx1ads_init(void)
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{
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#ifdef CONFIG_LEDS
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imx_gpio_mode(GPIO_PORTA | GPIO_OUT | 2);
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#endif
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#ifdef CONFIG_MMC_IMX
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/* SD/MMC card detect */
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imx_gpio_mode(GPIO_PORTB | GPIO_GIUS | GPIO_IN | 20);
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imx_set_mmc_info(&mx1ads_mmc_info);
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#endif
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imx_gpio_mode(PC9_PF_UART1_CTS);
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imx_gpio_mode(PC10_PF_UART1_RTS);
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imx_gpio_mode(PC11_PF_UART1_TXD);
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imx_gpio_mode(PC12_PF_UART1_RXD);
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imx_gpio_mode(PB28_PF_UART2_CTS);
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imx_gpio_mode(PB29_PF_UART2_RTS);
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imx_gpio_mode(PB30_PF_UART2_TXD);
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imx_gpio_mode(PB31_PF_UART2_RXD);
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platform_add_devices(devices, ARRAY_SIZE(devices));
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}
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static void __init
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mx1ads_map_io(void)
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{
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imx_map_io();
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}
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MACHINE_START(MX1ADS, "Motorola MX1ADS")
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/* Maintainer: Sascha Hauer, Pengutronix */
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.phys_io = 0x00200000,
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.io_pg_offst = ((0xe0200000) >> 18) & 0xfffc,
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.boot_params = 0x08000100,
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.map_io = mx1ads_map_io,
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.init_irq = imx_init_irq,
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.timer = &imx_timer,
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.init_machine = mx1ads_init,
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MACHINE_END
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