projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| d4a67d9d GJ |
1 | /* |
| 2 | * Atheros AR71XX/AR724X/AR913X common devices | |
| 3 | * | |
| 4 | * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org> | |
| 5 | * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> | |
| 6 | * | |
| 7 | * Parts of this file are based on Atheros' 2.6.15 BSP | |
| 8 | * | |
| 9 | * This program is free software; you can redistribute it and/or modify it | |
| 10 | * under the terms of the GNU General Public License version 2 as published | |
| 11 | * by the Free Software Foundation. | |
| 12 | */ | |
| 13 | ||
| 14 | #include <linux/kernel.h> | |
| 15 | #include <linux/init.h> | |
| 16 | #include <linux/platform_device.h> | |
| 17 | #include <linux/serial_8250.h> | |
| 18 | #include <linux/clk.h> | |
| 19 | #include <linux/err.h> | |
| 20 | ||
| 21 | #include <asm/mach-ath79/ath79.h> | |
| 22 | #include <asm/mach-ath79/ar71xx_regs.h> | |
| 13051c5c | 23 | #include <asm/mach-ath79/ar933x_uart_platform.h> |
| d4a67d9d GJ |
24 | #include "common.h" |
| 25 | #include "dev-common.h" | |
| 26 | ||
| 27 | static struct resource ath79_uart_resources[] = { | |
| 28 | { | |
| 29 | .start = AR71XX_UART_BASE, | |
| 30 | .end = AR71XX_UART_BASE + AR71XX_UART_SIZE - 1, | |
| 31 | .flags = IORESOURCE_MEM, | |
| 32 | }, | |
| 33 | }; | |
| 34 | ||
| 35 | #define AR71XX_UART_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP) | |
| 36 | static struct plat_serial8250_port ath79_uart_data[] = { | |
| 37 | { | |
| 38 | .mapbase = AR71XX_UART_BASE, | |
| 39 | .irq = ATH79_MISC_IRQ_UART, | |
| 40 | .flags = AR71XX_UART_FLAGS, | |
| 41 | .iotype = UPIO_MEM32, | |
| 42 | .regshift = 2, | |
| 43 | }, { | |
| 44 | /* terminating entry */ | |
| 45 | } | |
| 46 | }; | |
| 47 | ||
| 48 | static struct platform_device ath79_uart_device = { | |
| 49 | .name = "serial8250", | |
| 50 | .id = PLAT8250_DEV_PLATFORM, | |
| 51 | .resource = ath79_uart_resources, | |
| 52 | .num_resources = ARRAY_SIZE(ath79_uart_resources), | |
| 53 | .dev = { | |
| 54 | .platform_data = ath79_uart_data | |
| 55 | }, | |
| 56 | }; | |
| 57 | ||
| 13051c5c GJ |
58 | static struct resource ar933x_uart_resources[] = { |
| 59 | { | |
| 60 | .start = AR933X_UART_BASE, | |
| 61 | .end = AR933X_UART_BASE + AR71XX_UART_SIZE - 1, | |
| 62 | .flags = IORESOURCE_MEM, | |
| 63 | }, | |
| 64 | { | |
| 65 | .start = ATH79_MISC_IRQ_UART, | |
| 66 | .end = ATH79_MISC_IRQ_UART, | |
| 67 | .flags = IORESOURCE_IRQ, | |
| 68 | }, | |
| 69 | }; | |
| 70 | ||
| 71 | static struct ar933x_uart_platform_data ar933x_uart_data; | |
| 72 | static struct platform_device ar933x_uart_device = { | |
| 73 | .name = "ar933x-uart", | |
| 74 | .id = -1, | |
| 75 | .resource = ar933x_uart_resources, | |
| 76 | .num_resources = ARRAY_SIZE(ar933x_uart_resources), | |
| 77 | .dev = { | |
| 78 | .platform_data = &ar933x_uart_data, | |
| 79 | }, | |
| 80 | }; | |
| 81 | ||
| d4a67d9d GJ |
82 | void __init ath79_register_uart(void) |
| 83 | { | |
| 84 | struct clk *clk; | |
| 85 | ||
| 86 | clk = clk_get(NULL, "uart"); | |
| 87 | if (IS_ERR(clk)) | |
| 88 | panic("unable to get UART clock, err=%ld", PTR_ERR(clk)); | |
| 89 | ||
| 13051c5c GJ |
90 | if (soc_is_ar71xx() || |
| 91 | soc_is_ar724x() || | |
| 9800bdc7 GJ |
92 | soc_is_ar913x() || |
| 93 | soc_is_ar934x()) { | |
| 13051c5c GJ |
94 | ath79_uart_data[0].uartclk = clk_get_rate(clk); |
| 95 | platform_device_register(&ath79_uart_device); | |
| 96 | } else if (soc_is_ar933x()) { | |
| 97 | ar933x_uart_data.uartclk = clk_get_rate(clk); | |
| 98 | platform_device_register(&ar933x_uart_device); | |
| 99 | } else { | |
| 100 | BUG(); | |
| 101 | } | |
| d4a67d9d | 102 | } |
| 858f763c GJ |
103 | |
| 104 | static struct platform_device ath79_wdt_device = { | |
| 105 | .name = "ath79-wdt", | |
| 106 | .id = -1, | |
| 107 | }; | |
| 108 | ||
| 109 | void __init ath79_register_wdt(void) | |
| 110 | { | |
| 111 | platform_device_register(&ath79_wdt_device); | |
| 112 | } |