Commit | Line | Data |
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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 | } |