diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/mach-ixp4xx/gtwx5715-setup.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/arm/mach-ixp4xx/gtwx5715-setup.c')
-rw-r--r-- | arch/arm/mach-ixp4xx/gtwx5715-setup.c | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/arch/arm/mach-ixp4xx/gtwx5715-setup.c b/arch/arm/mach-ixp4xx/gtwx5715-setup.c new file mode 100644 index 000000000000..e77c86efd21d --- /dev/null +++ b/arch/arm/mach-ixp4xx/gtwx5715-setup.c | |||
@@ -0,0 +1,153 @@ | |||
1 | /* | ||
2 | * arch/arm/mach-ixp4xx/gtwx5715-setup.c | ||
3 | * | ||
4 | * Gemtek GTWX5715 (Linksys WRV54G) board settup | ||
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> | ||
30 | |||
31 | #include <asm/types.h> | ||
32 | #include <asm/setup.h> | ||
33 | #include <asm/memory.h> | ||
34 | #include <asm/hardware.h> | ||
35 | #include <asm/irq.h> | ||
36 | #include <asm/mach-types.h> | ||
37 | #include <asm/mach/arch.h> | ||
38 | #include <asm/mach/flash.h> | ||
39 | #include <asm/arch/gtwx5715.h> | ||
40 | |||
41 | /* | ||
42 | * Xscale UART registers are 32 bits wide with only the least | ||
43 | * significant 8 bits having any meaning. From a configuration | ||
44 | * perspective, this means 2 things... | ||
45 | * | ||
46 | * Setting .regshift = 2 so that the standard 16550 registers | ||
47 | * line up on every 4th byte. | ||
48 | * | ||
49 | * Shifting the register start virtual address +3 bytes when | ||
50 | * compiled big-endian. Since register writes are done on a | ||
51 | * single byte basis, if the shift isn't done the driver will | ||
52 | * write the value into the most significant byte of the register, | ||
53 | * which is ignored, instead of the least significant. | ||
54 | */ | ||
55 | |||
56 | #ifdef __ARMEB__ | ||
57 | #define REG_OFFSET 3 | ||
58 | #else | ||
59 | #define REG_OFFSET 0 | ||
60 | #endif | ||
61 | |||
62 | /* | ||
63 | * Only the second or "console" uart is connected on the gtwx5715. | ||
64 | */ | ||
65 | |||
66 | static struct resource gtwx5715_uart_resources[] = { | ||
67 | { | ||
68 | .start = IXP4XX_UART2_BASE_PHYS, | ||
69 | .end = IXP4XX_UART2_BASE_PHYS + 0x0fff, | ||
70 | .flags = IORESOURCE_MEM, | ||
71 | }, | ||
72 | { | ||
73 | .start = IRQ_IXP4XX_UART2, | ||
74 | .end = IRQ_IXP4XX_UART2, | ||
75 | .flags = IORESOURCE_IRQ, | ||
76 | }, | ||
77 | { }, | ||
78 | }; | ||
79 | |||
80 | |||
81 | static struct plat_serial8250_port gtwx5715_uart_platform_data[] = { | ||
82 | { | ||
83 | .mapbase = IXP4XX_UART2_BASE_PHYS, | ||
84 | .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET, | ||
85 | .irq = IRQ_IXP4XX_UART2, | ||
86 | .flags = UPF_BOOT_AUTOCONF, | ||
87 | .iotype = UPIO_MEM, | ||
88 | .regshift = 2, | ||
89 | .uartclk = IXP4XX_UART_XTAL, | ||
90 | }, | ||
91 | { }, | ||
92 | }; | ||
93 | |||
94 | static struct platform_device gtwx5715_uart_device = { | ||
95 | .name = "serial8250", | ||
96 | .id = 0, | ||
97 | .dev = { | ||
98 | .platform_data = gtwx5715_uart_platform_data, | ||
99 | }, | ||
100 | .num_resources = 2, | ||
101 | .resource = gtwx5715_uart_resources, | ||
102 | }; | ||
103 | |||
104 | |||
105 | void __init gtwx5715_map_io(void) | ||
106 | { | ||
107 | ixp4xx_map_io(); | ||
108 | } | ||
109 | |||
110 | static struct flash_platform_data gtwx5715_flash_data = { | ||
111 | .map_name = "cfi_probe", | ||
112 | .width = 2, | ||
113 | }; | ||
114 | |||
115 | static struct resource gtwx5715_flash_resource = { | ||
116 | .start = GTWX5715_FLASH_BASE, | ||
117 | .end = GTWX5715_FLASH_BASE + GTWX5715_FLASH_SIZE, | ||
118 | .flags = IORESOURCE_MEM, | ||
119 | }; | ||
120 | |||
121 | static struct platform_device gtwx5715_flash = { | ||
122 | .name = "IXP4XX-Flash", | ||
123 | .id = 0, | ||
124 | .dev = { | ||
125 | .platform_data = >wx5715_flash_data, | ||
126 | }, | ||
127 | .num_resources = 1, | ||
128 | .resource = >wx5715_flash_resource, | ||
129 | }; | ||
130 | |||
131 | static struct platform_device *gtwx5715_devices[] __initdata = { | ||
132 | >wx5715_uart_device, | ||
133 | >wx5715_flash, | ||
134 | }; | ||
135 | |||
136 | static void __init gtwx5715_init(void) | ||
137 | { | ||
138 | platform_add_devices(gtwx5715_devices, ARRAY_SIZE(gtwx5715_devices)); | ||
139 | } | ||
140 | |||
141 | |||
142 | MACHINE_START(GTWX5715, "Gemtek GTWX5715 (Linksys WRV54G)") | ||
143 | MAINTAINER("George Joseph") | ||
144 | BOOT_MEM(PHYS_OFFSET, IXP4XX_UART2_BASE_PHYS, | ||
145 | IXP4XX_UART2_BASE_VIRT) | ||
146 | MAPIO(gtwx5715_map_io) | ||
147 | INITIRQ(ixp4xx_init_irq) | ||
148 | .timer = &ixp4xx_timer, | ||
149 | BOOT_PARAMS(0x0100) | ||
150 | INIT_MACHINE(gtwx5715_init) | ||
151 | MACHINE_END | ||
152 | |||
153 | |||