projects / linux-2.6-block.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> | |
| 23 | #include "common.h" | |
| 24 | #include "dev-common.h" | |
| 25 | ||
| 26 | static struct resource ath79_uart_resources[] = { | |
| 27 | { | |
| 28 | .start = AR71XX_UART_BASE, | |
| 29 | .end = AR71XX_UART_BASE + AR71XX_UART_SIZE - 1, | |
| 30 | .flags = IORESOURCE_MEM, | |
| 31 | }, | |
| 32 | }; | |
| 33 | ||
| 34 | #define AR71XX_UART_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP) | |
| 35 | static struct plat_serial8250_port ath79_uart_data[] = { | |
| 36 | { | |
| 37 | .mapbase = AR71XX_UART_BASE, | |
| fd633cf1 | 38 | .irq = ATH79_MISC_IRQ(3), |
| d4a67d9d GJ |
39 | .flags = AR71XX_UART_FLAGS, |
| 40 | .iotype = UPIO_MEM32, | |
| 41 | .regshift = 2, | |
| 42 | }, { | |
| 43 | /* terminating entry */ | |
| 44 | } | |
| 45 | }; | |
| 46 | ||
| 47 | static struct platform_device ath79_uart_device = { | |
| 48 | .name = "serial8250", | |
| 49 | .id = PLAT8250_DEV_PLATFORM, | |
| 50 | .resource = ath79_uart_resources, | |
| 51 | .num_resources = ARRAY_SIZE(ath79_uart_resources), | |
| 52 | .dev = { | |
| 53 | .platform_data = ath79_uart_data | |
| 54 | }, | |
| 55 | }; | |
| 56 | ||
| 13051c5c GJ |
57 | static struct resource ar933x_uart_resources[] = { |
| 58 | { | |
| 59 | .start = AR933X_UART_BASE, | |
| 60 | .end = AR933X_UART_BASE + AR71XX_UART_SIZE - 1, | |
| 61 | .flags = IORESOURCE_MEM, | |
| 62 | }, | |
| 63 | { | |
| fd633cf1 GJ |
64 | .start = ATH79_MISC_IRQ(3), |
| 65 | .end = ATH79_MISC_IRQ(3), | |
| 13051c5c GJ |
66 | .flags = IORESOURCE_IRQ, |
| 67 | }, | |
| 68 | }; | |
| 69 | ||
| 13051c5c GJ |
70 | static struct platform_device ar933x_uart_device = { |
| 71 | .name = "ar933x-uart", | |
| 72 | .id = -1, | |
| 73 | .resource = ar933x_uart_resources, | |
| 74 | .num_resources = ARRAY_SIZE(ar933x_uart_resources), | |
| 13051c5c GJ |
75 | }; |
| 76 | ||
| d4a67d9d GJ |
77 | void __init ath79_register_uart(void) |
| 78 | { | |
| 23107802 | 79 | unsigned long uart_clk_rate; |
| d4a67d9d | 80 | |
| 23107802 | 81 | uart_clk_rate = ath79_get_sys_clk_rate("uart"); |
| d4a67d9d | 82 | |
| 13051c5c GJ |
83 | if (soc_is_ar71xx() || |
| 84 | soc_is_ar724x() || | |
| 9800bdc7 | 85 | soc_is_ar913x() || |
| 13992303 GJ |
86 | soc_is_ar934x() || |
| 87 | soc_is_qca955x()) { | |
| 23107802 | 88 | ath79_uart_data[0].uartclk = uart_clk_rate; |
| 13051c5c GJ |
89 | platform_device_register(&ath79_uart_device); |
| 90 | } else if (soc_is_ar933x()) { | |
| 13051c5c GJ |
91 | platform_device_register(&ar933x_uart_device); |
| 92 | } else { | |
| 93 | BUG(); | |
| 94 | } | |
| d4a67d9d | 95 | } |
| 858f763c | 96 | |
| 858f763c GJ |
97 | void __init ath79_register_wdt(void) |
| 98 | { | |
| 09f5100a GJ |
99 | struct resource res; |
| 100 | ||
| 101 | memset(&res, 0, sizeof(res)); | |
| 102 | ||
| 103 | res.flags = IORESOURCE_MEM; | |
| 104 | res.start = AR71XX_RESET_BASE + AR71XX_RESET_REG_WDOG_CTRL; | |
| 105 | res.end = res.start + 0x8 - 1; | |
| 106 | ||
| 107 | platform_device_register_simple("ath79-wdt", -1, &res, 1); | |
| 858f763c | 108 | } |