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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> | |
2ddf3a79 | 17 | #include <linux/platform_data/gpio-ath79.h> |
d4a67d9d GJ |
18 | #include <linux/serial_8250.h> |
19 | #include <linux/clk.h> | |
20 | #include <linux/err.h> | |
21 | ||
22 | #include <asm/mach-ath79/ath79.h> | |
23 | #include <asm/mach-ath79/ar71xx_regs.h> | |
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, | |
fd633cf1 | 39 | .irq = ATH79_MISC_IRQ(3), |
d4a67d9d GJ |
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 | { | |
fd633cf1 GJ |
65 | .start = ATH79_MISC_IRQ(3), |
66 | .end = ATH79_MISC_IRQ(3), | |
13051c5c GJ |
67 | .flags = IORESOURCE_IRQ, |
68 | }, | |
69 | }; | |
70 | ||
13051c5c GJ |
71 | static struct platform_device ar933x_uart_device = { |
72 | .name = "ar933x-uart", | |
73 | .id = -1, | |
74 | .resource = ar933x_uart_resources, | |
75 | .num_resources = ARRAY_SIZE(ar933x_uart_resources), | |
13051c5c GJ |
76 | }; |
77 | ||
d4a67d9d GJ |
78 | void __init ath79_register_uart(void) |
79 | { | |
23107802 | 80 | unsigned long uart_clk_rate; |
d4a67d9d | 81 | |
23107802 | 82 | uart_clk_rate = ath79_get_sys_clk_rate("uart"); |
d4a67d9d | 83 | |
13051c5c GJ |
84 | if (soc_is_ar71xx() || |
85 | soc_is_ar724x() || | |
9800bdc7 | 86 | soc_is_ar913x() || |
13992303 GJ |
87 | soc_is_ar934x() || |
88 | soc_is_qca955x()) { | |
23107802 | 89 | ath79_uart_data[0].uartclk = uart_clk_rate; |
13051c5c GJ |
90 | platform_device_register(&ath79_uart_device); |
91 | } else if (soc_is_ar933x()) { | |
13051c5c GJ |
92 | platform_device_register(&ar933x_uart_device); |
93 | } else { | |
94 | BUG(); | |
95 | } | |
d4a67d9d | 96 | } |
858f763c | 97 | |
858f763c GJ |
98 | void __init ath79_register_wdt(void) |
99 | { | |
09f5100a GJ |
100 | struct resource res; |
101 | ||
102 | memset(&res, 0, sizeof(res)); | |
103 | ||
104 | res.flags = IORESOURCE_MEM; | |
105 | res.start = AR71XX_RESET_BASE + AR71XX_RESET_REG_WDOG_CTRL; | |
106 | res.end = res.start + 0x8 - 1; | |
107 | ||
108 | platform_device_register_simple("ath79-wdt", -1, &res, 1); | |
858f763c | 109 | } |
2ddf3a79 AB |
110 | |
111 | static struct ath79_gpio_platform_data ath79_gpio_pdata; | |
112 | ||
113 | static struct resource ath79_gpio_resources[] = { | |
114 | { | |
115 | .flags = IORESOURCE_MEM, | |
116 | .start = AR71XX_GPIO_BASE, | |
117 | .end = AR71XX_GPIO_BASE + AR71XX_GPIO_SIZE - 1, | |
118 | }, | |
119 | { | |
120 | .start = ATH79_MISC_IRQ(2), | |
121 | .end = ATH79_MISC_IRQ(2), | |
122 | .flags = IORESOURCE_IRQ, | |
123 | }, | |
124 | }; | |
125 | ||
126 | static struct platform_device ath79_gpio_device = { | |
127 | .name = "ath79-gpio", | |
128 | .id = -1, | |
129 | .resource = ath79_gpio_resources, | |
130 | .num_resources = ARRAY_SIZE(ath79_gpio_resources), | |
131 | .dev = { | |
132 | .platform_data = &ath79_gpio_pdata | |
133 | }, | |
134 | }; | |
135 | ||
136 | void __init ath79_gpio_init(void) | |
137 | { | |
138 | if (soc_is_ar71xx()) { | |
139 | ath79_gpio_pdata.ngpios = AR71XX_GPIO_COUNT; | |
140 | } else if (soc_is_ar7240()) { | |
141 | ath79_gpio_pdata.ngpios = AR7240_GPIO_COUNT; | |
142 | } else if (soc_is_ar7241() || soc_is_ar7242()) { | |
143 | ath79_gpio_pdata.ngpios = AR7241_GPIO_COUNT; | |
144 | } else if (soc_is_ar913x()) { | |
145 | ath79_gpio_pdata.ngpios = AR913X_GPIO_COUNT; | |
146 | } else if (soc_is_ar933x()) { | |
147 | ath79_gpio_pdata.ngpios = AR933X_GPIO_COUNT; | |
148 | } else if (soc_is_ar934x()) { | |
149 | ath79_gpio_pdata.ngpios = AR934X_GPIO_COUNT; | |
150 | ath79_gpio_pdata.oe_inverted = 1; | |
151 | } else if (soc_is_qca955x()) { | |
152 | ath79_gpio_pdata.ngpios = QCA955X_GPIO_COUNT; | |
153 | ath79_gpio_pdata.oe_inverted = 1; | |
154 | } else { | |
155 | BUG(); | |
156 | } | |
157 | ||
158 | platform_device_register(&ath79_gpio_device); | |
159 | } |