68b86a2522
Pull watchdog updates from Wim Van Sebroeck:
"This contains:
- fixes and improvements
- devicetree bindings
- conversion to watchdog generic framework of the following drivers:
- booke_wdt
- bcm47xx_wdt.c
- at91sam9_wdt
- Removal of old STMP3xxx driver
- Addition of following new drivers:
- new driver for STMP3xxx and i.MX23/28
- Retu watchdog driver"
* git://www.linux-watchdog.org/linux-watchdog: (30 commits)
watchdog: sp805_wdt depends on ARM
watchdog: davinci_wdt: update to devm_* API
watchdog: davinci_wdt: use devm managed clk get
watchdog: at91rm9200: add DT support
watchdog: add timeout-sec property binding
watchdog: at91sam9_wdt: Convert to use the watchdog framework
watchdog: omap_wdt: Add option nowayout
watchdog: core: dt: add support for the timeout-sec dt property
watchdog: bcm47xx_wdt.c: add hard timer
watchdog: bcm47xx_wdt.c: rename wdt_time to timeout
watchdog: bcm47xx_wdt.c: rename ops methods
watchdog: bcm47xx_wdt.c: use platform device
watchdog: bcm47xx_wdt.c: convert to watchdog core api
watchdog: Convert BookE watchdog driver to watchdog infrastructure
watchdog: s3c2410_wdt: Use devm_* functions
watchdog: remove old STMP3xxx driver
watchdog: add new driver for STMP3xxx and i.MX23/28
rtc: stmp3xxx: add wdt-accessor function
watchdog: introduce retu_wdt driver
watchdog: intel_scu_watchdog: fix Kconfig dependency
...
116 lines
2.8 KiB
C
116 lines
2.8 KiB
C
/*
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* Atheros AR71XX/AR724X/AR913X common devices
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*
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* Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
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* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
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*
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* Parts of this file are based on Atheros' 2.6.15 BSP
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/serial_8250.h>
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#include <linux/clk.h>
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#include <linux/err.h>
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#include <asm/mach-ath79/ath79.h>
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#include <asm/mach-ath79/ar71xx_regs.h>
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#include <asm/mach-ath79/ar933x_uart_platform.h>
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#include "common.h"
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#include "dev-common.h"
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static struct resource ath79_uart_resources[] = {
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{
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.start = AR71XX_UART_BASE,
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.end = AR71XX_UART_BASE + AR71XX_UART_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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};
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#define AR71XX_UART_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP)
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static struct plat_serial8250_port ath79_uart_data[] = {
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{
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.mapbase = AR71XX_UART_BASE,
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.irq = ATH79_MISC_IRQ(3),
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.flags = AR71XX_UART_FLAGS,
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.iotype = UPIO_MEM32,
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.regshift = 2,
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}, {
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/* terminating entry */
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}
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};
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static struct platform_device ath79_uart_device = {
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.name = "serial8250",
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.id = PLAT8250_DEV_PLATFORM,
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.resource = ath79_uart_resources,
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.num_resources = ARRAY_SIZE(ath79_uart_resources),
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.dev = {
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.platform_data = ath79_uart_data
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},
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};
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static struct resource ar933x_uart_resources[] = {
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{
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.start = AR933X_UART_BASE,
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.end = AR933X_UART_BASE + AR71XX_UART_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = ATH79_MISC_IRQ(3),
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.end = ATH79_MISC_IRQ(3),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct ar933x_uart_platform_data ar933x_uart_data;
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static struct platform_device ar933x_uart_device = {
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.name = "ar933x-uart",
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.id = -1,
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.resource = ar933x_uart_resources,
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.num_resources = ARRAY_SIZE(ar933x_uart_resources),
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.dev = {
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.platform_data = &ar933x_uart_data,
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},
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};
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void __init ath79_register_uart(void)
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{
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struct clk *clk;
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clk = clk_get(NULL, "uart");
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if (IS_ERR(clk))
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panic("unable to get UART clock, err=%ld", PTR_ERR(clk));
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if (soc_is_ar71xx() ||
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soc_is_ar724x() ||
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soc_is_ar913x() ||
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soc_is_ar934x() ||
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soc_is_qca955x()) {
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ath79_uart_data[0].uartclk = clk_get_rate(clk);
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platform_device_register(&ath79_uart_device);
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} else if (soc_is_ar933x()) {
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ar933x_uart_data.uartclk = clk_get_rate(clk);
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platform_device_register(&ar933x_uart_device);
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} else {
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BUG();
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}
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}
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void __init ath79_register_wdt(void)
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{
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struct resource res;
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memset(&res, 0, sizeof(res));
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res.flags = IORESOURCE_MEM;
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res.start = AR71XX_RESET_BASE + AR71XX_RESET_REG_WDOG_CTRL;
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res.end = res.start + 0x8 - 1;
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platform_device_register_simple("ath79-wdt", -1, &res, 1);
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}
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