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1da177e4 LT |
1 | /* |
2 | * arch/arm/mach-ixp4xx/gtwx5715-setup.c | |
3 | * | |
6cbdc8c5 | 4 | * Gemtek GTWX5715 (Linksys WRV54G) board setup |
1da177e4 LT |
5 | * |
6 | * Copyright (C) 2004 George T. Joseph | |
7 | * Derived from Coyote | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU General Public License | |
11 | * as published by the Free Software Foundation; either version 2 | |
12 | * of the License, or (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
22 | * | |
23 | */ | |
24 | ||
25 | #include <linux/init.h> | |
26 | #include <linux/device.h> | |
27 | #include <linux/serial.h> | |
28 | #include <linux/tty.h> | |
29 | #include <linux/serial_8250.h> | |
1da177e4 LT |
30 | #include <asm/types.h> |
31 | #include <asm/setup.h> | |
32 | #include <asm/memory.h> | |
a09e64fb | 33 | #include <mach/hardware.h> |
1da177e4 LT |
34 | #include <asm/irq.h> |
35 | #include <asm/mach-types.h> | |
36 | #include <asm/mach/arch.h> | |
37 | #include <asm/mach/flash.h> | |
a8b7b340 KH |
38 | |
39 | /* GPIO 5,6,7 and 12 are hard wired to the Kendin KS8995M Switch | |
40 | and operate as an SPI type interface. The details of the interface | |
41 | are available on Kendin/Micrel's web site. */ | |
42 | ||
43 | #define GTWX5715_KSSPI_SELECT 5 | |
44 | #define GTWX5715_KSSPI_TXD 6 | |
45 | #define GTWX5715_KSSPI_CLOCK 7 | |
46 | #define GTWX5715_KSSPI_RXD 12 | |
47 | ||
48 | /* The "reset" button is wired to GPIO 3. | |
49 | The GPIO is brought "low" when the button is pushed. */ | |
50 | ||
51 | #define GTWX5715_BUTTON_GPIO 3 | |
52 | ||
53 | /* Board Label Front Label | |
54 | LED1 Power | |
55 | LED2 Wireless-G | |
56 | LED3 not populated but could be | |
57 | LED4 Internet | |
58 | LED5 - LED8 Controlled by KS8995M Switch | |
59 | LED9 DMZ */ | |
60 | ||
61 | #define GTWX5715_LED1_GPIO 2 | |
62 | #define GTWX5715_LED2_GPIO 9 | |
63 | #define GTWX5715_LED3_GPIO 8 | |
64 | #define GTWX5715_LED4_GPIO 1 | |
65 | #define GTWX5715_LED9_GPIO 4 | |
1da177e4 LT |
66 | |
67 | /* | |
68 | * Xscale UART registers are 32 bits wide with only the least | |
69 | * significant 8 bits having any meaning. From a configuration | |
70 | * perspective, this means 2 things... | |
71 | * | |
72 | * Setting .regshift = 2 so that the standard 16550 registers | |
73 | * line up on every 4th byte. | |
74 | * | |
75 | * Shifting the register start virtual address +3 bytes when | |
76 | * compiled big-endian. Since register writes are done on a | |
77 | * single byte basis, if the shift isn't done the driver will | |
78 | * write the value into the most significant byte of the register, | |
79 | * which is ignored, instead of the least significant. | |
80 | */ | |
81 | ||
82 | #ifdef __ARMEB__ | |
83 | #define REG_OFFSET 3 | |
84 | #else | |
85 | #define REG_OFFSET 0 | |
86 | #endif | |
87 | ||
88 | /* | |
89 | * Only the second or "console" uart is connected on the gtwx5715. | |
90 | */ | |
91 | ||
92 | static struct resource gtwx5715_uart_resources[] = { | |
93 | { | |
94 | .start = IXP4XX_UART2_BASE_PHYS, | |
95 | .end = IXP4XX_UART2_BASE_PHYS + 0x0fff, | |
96 | .flags = IORESOURCE_MEM, | |
97 | }, | |
98 | { | |
99 | .start = IRQ_IXP4XX_UART2, | |
100 | .end = IRQ_IXP4XX_UART2, | |
101 | .flags = IORESOURCE_IRQ, | |
102 | }, | |
103 | { }, | |
104 | }; | |
105 | ||
106 | ||
107 | static struct plat_serial8250_port gtwx5715_uart_platform_data[] = { | |
108 | { | |
109 | .mapbase = IXP4XX_UART2_BASE_PHYS, | |
110 | .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET, | |
111 | .irq = IRQ_IXP4XX_UART2, | |
8c741ed7 | 112 | .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, |
1da177e4 LT |
113 | .iotype = UPIO_MEM, |
114 | .regshift = 2, | |
115 | .uartclk = IXP4XX_UART_XTAL, | |
116 | }, | |
117 | { }, | |
118 | }; | |
119 | ||
120 | static struct platform_device gtwx5715_uart_device = { | |
121 | .name = "serial8250", | |
6df29deb | 122 | .id = PLAT8250_DEV_PLATFORM, |
1da177e4 LT |
123 | .dev = { |
124 | .platform_data = gtwx5715_uart_platform_data, | |
125 | }, | |
126 | .num_resources = 2, | |
127 | .resource = gtwx5715_uart_resources, | |
128 | }; | |
129 | ||
1da177e4 LT |
130 | static struct flash_platform_data gtwx5715_flash_data = { |
131 | .map_name = "cfi_probe", | |
132 | .width = 2, | |
133 | }; | |
134 | ||
4c756f4e | 135 | static struct resource gtwx5715_flash_resource = { |
1da177e4 | 136 | .flags = IORESOURCE_MEM, |
4c756f4e | 137 | }; |
1da177e4 LT |
138 | |
139 | static struct platform_device gtwx5715_flash = { | |
140 | .name = "IXP4XX-Flash", | |
141 | .id = 0, | |
142 | .dev = { | |
143 | .platform_data = >wx5715_flash_data, | |
144 | }, | |
145 | .num_resources = 1, | |
146 | .resource = >wx5715_flash_resource, | |
147 | }; | |
148 | ||
149 | static struct platform_device *gtwx5715_devices[] __initdata = { | |
150 | >wx5715_uart_device, | |
151 | >wx5715_flash, | |
152 | }; | |
153 | ||
154 | static void __init gtwx5715_init(void) | |
155 | { | |
54e269ea DS |
156 | ixp4xx_sys_init(); |
157 | ||
54e269ea DS |
158 | gtwx5715_flash_resource.start = IXP4XX_EXP_BUS_BASE(0); |
159 | gtwx5715_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_8M - 1; | |
160 | ||
1da177e4 LT |
161 | platform_add_devices(gtwx5715_devices, ARRAY_SIZE(gtwx5715_devices)); |
162 | } | |
163 | ||
164 | ||
165 | MACHINE_START(GTWX5715, "Gemtek GTWX5715 (Linksys WRV54G)") | |
e9dea0c6 | 166 | /* Maintainer: George Joseph */ |
e605ecd7 | 167 | .map_io = ixp4xx_map_io, |
f449588c | 168 | .init_early = ixp4xx_init_early, |
e9dea0c6 | 169 | .init_irq = ixp4xx_init_irq, |
6bb27d73 | 170 | .init_time = ixp4xx_timer_init, |
e022c729 | 171 | .atag_offset = 0x100, |
e9dea0c6 | 172 | .init_machine = gtwx5715_init, |
7553ee77 NP |
173 | #if defined(CONFIG_PCI) |
174 | .dma_zone_size = SZ_64M, | |
175 | #endif | |
d1b860fb | 176 | .restart = ixp4xx_restart, |
1da177e4 LT |
177 | MACHINE_END |
178 | ||
179 |