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159 lines
3.8 KiB
159 lines
3.8 KiB
/* |
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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/platform_data/gpio-ath79.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 "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 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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}; |
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void __init ath79_register_uart(void) |
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{ |
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unsigned long uart_clk_rate; |
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uart_clk_rate = ath79_get_sys_clk_rate("uart"); |
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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 = uart_clk_rate; |
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platform_device_register(&ath79_uart_device); |
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} else if (soc_is_ar933x()) { |
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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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static struct ath79_gpio_platform_data ath79_gpio_pdata; |
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static struct resource ath79_gpio_resources[] = { |
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{ |
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.flags = IORESOURCE_MEM, |
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.start = AR71XX_GPIO_BASE, |
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.end = AR71XX_GPIO_BASE + AR71XX_GPIO_SIZE - 1, |
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}, |
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{ |
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.start = ATH79_MISC_IRQ(2), |
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.end = ATH79_MISC_IRQ(2), |
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.flags = IORESOURCE_IRQ, |
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}, |
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}; |
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static struct platform_device ath79_gpio_device = { |
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.name = "ath79-gpio", |
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.id = -1, |
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.resource = ath79_gpio_resources, |
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.num_resources = ARRAY_SIZE(ath79_gpio_resources), |
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.dev = { |
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.platform_data = &ath79_gpio_pdata |
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}, |
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}; |
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void __init ath79_gpio_init(void) |
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{ |
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if (soc_is_ar71xx()) { |
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ath79_gpio_pdata.ngpios = AR71XX_GPIO_COUNT; |
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} else if (soc_is_ar7240()) { |
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ath79_gpio_pdata.ngpios = AR7240_GPIO_COUNT; |
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} else if (soc_is_ar7241() || soc_is_ar7242()) { |
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ath79_gpio_pdata.ngpios = AR7241_GPIO_COUNT; |
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} else if (soc_is_ar913x()) { |
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ath79_gpio_pdata.ngpios = AR913X_GPIO_COUNT; |
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} else if (soc_is_ar933x()) { |
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ath79_gpio_pdata.ngpios = AR933X_GPIO_COUNT; |
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} else if (soc_is_ar934x()) { |
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ath79_gpio_pdata.ngpios = AR934X_GPIO_COUNT; |
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ath79_gpio_pdata.oe_inverted = 1; |
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} else if (soc_is_qca955x()) { |
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ath79_gpio_pdata.ngpios = QCA955X_GPIO_COUNT; |
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ath79_gpio_pdata.oe_inverted = 1; |
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} else { |
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BUG(); |
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} |
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platform_device_register(&ath79_gpio_device); |
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}
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