1 /*
2 * arch/arm/mach-ixp4xx/avila-setup.c
3 *
4 * Gateworks Avila board-setup
5 *
6 * Author: Michael-Luke Jones <mlj28@cam.ac.uk>
7 *
8 * Based on ixdp-setup.c
9 * Copyright (C) 2003-2005 MontaVista Software, Inc.
10 *
11 * Author: Deepak Saxena <dsaxena@plexity.net>
12 */
13
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/device.h>
17 #include <linux/serial.h>
18 #include <linux/tty.h>
19 #include <linux/serial_8250.h>
20 #include <linux/i2c-gpio.h>
21 #include <asm/types.h>
22 #include <asm/setup.h>
23 #include <asm/memory.h>
24 #include <mach/hardware.h>
25 #include <asm/mach-types.h>
26 #include <asm/irq.h>
27 #include <asm/mach/arch.h>
28 #include <asm/mach/flash.h>
29
30 #define AVILA_SDA_PIN 7
31 #define AVILA_SCL_PIN 6
32
33 static struct flash_platform_data avila_flash_data = {
34 .map_name = "cfi_probe",
35 .width = 2,
36 };
37
38 static struct resource avila_flash_resource = {
39 .flags = IORESOURCE_MEM,
40 };
41
42 static struct platform_device avila_flash = {
43 .name = "IXP4XX-Flash",
44 .id = 0,
45 .dev = {
46 .platform_data = &avila_flash_data,
47 },
48 .num_resources = 1,
49 .resource = &avila_flash_resource,
50 };
51
52 static struct i2c_gpio_platform_data avila_i2c_gpio_data = {
53 .sda_pin = AVILA_SDA_PIN,
54 .scl_pin = AVILA_SCL_PIN,
55 };
56
57 static struct platform_device avila_i2c_gpio = {
58 .name = "i2c-gpio",
59 .id = 0,
60 .dev = {
61 .platform_data = &avila_i2c_gpio_data,
62 },
63 };
64
65 static struct resource avila_uart_resources[] = {
66 {
67 .start = IXP4XX_UART1_BASE_PHYS,
68 .end = IXP4XX_UART1_BASE_PHYS + 0x0fff,
69 .flags = IORESOURCE_MEM
70 },
71 {
72 .start = IXP4XX_UART2_BASE_PHYS,
73 .end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
74 .flags = IORESOURCE_MEM
75 }
76 };
77
78 static struct plat_serial8250_port avila_uart_data[] = {
79 {
80 .mapbase = IXP4XX_UART1_BASE_PHYS,
81 .membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
82 .irq = IRQ_IXP4XX_UART1,
83 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
84 .iotype = UPIO_MEM,
85 .regshift = 2,
86 .uartclk = IXP4XX_UART_XTAL,
87 },
88 {
89 .mapbase = IXP4XX_UART2_BASE_PHYS,
90 .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
91 .irq = IRQ_IXP4XX_UART2,
92 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
93 .iotype = UPIO_MEM,
94 .regshift = 2,
95 .uartclk = IXP4XX_UART_XTAL,
96 },
97 { },
98 };
99
100 static struct platform_device avila_uart = {
101 .name = "serial8250",
102 .id = PLAT8250_DEV_PLATFORM,
103 .dev.platform_data = avila_uart_data,
104 .num_resources = 2,
105 .resource = avila_uart_resources
106 };
107
108 static struct resource avila_pata_resources[] = {
109 {
110 .flags = IORESOURCE_MEM
111 },
112 {
113 .flags = IORESOURCE_MEM,
114 },
115 {
116 .name = "intrq",
117 .start = IRQ_IXP4XX_GPIO12,
118 .end = IRQ_IXP4XX_GPIO12,
119 .flags = IORESOURCE_IRQ,
120 },
121 };
122
123 static struct ixp4xx_pata_data avila_pata_data = {
124 .cs0_bits = 0xbfff0043,
125 .cs1_bits = 0xbfff0043,
126 };
127
128 static struct platform_device avila_pata = {
129 .name = "pata_ixp4xx_cf",
130 .id = 0,
131 .dev.platform_data = &avila_pata_data,
132 .num_resources = ARRAY_SIZE(avila_pata_resources),
133 .resource = avila_pata_resources,
134 };
135
136 static struct platform_device *avila_devices[] __initdata = {
137 &avila_i2c_gpio,
138 &avila_flash,
139 &avila_uart
140 };
141
avila_init(void)142 static void __init avila_init(void)
143 {
144 ixp4xx_sys_init();
145
146 avila_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
147 avila_flash_resource.end =
148 IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
149
150 platform_add_devices(avila_devices, ARRAY_SIZE(avila_devices));
151
152 avila_pata_resources[0].start = IXP4XX_EXP_BUS_BASE(1);
153 avila_pata_resources[0].end = IXP4XX_EXP_BUS_END(1);
154
155 avila_pata_resources[1].start = IXP4XX_EXP_BUS_BASE(2);
156 avila_pata_resources[1].end = IXP4XX_EXP_BUS_END(2);
157
158 avila_pata_data.cs0_cfg = IXP4XX_EXP_CS1;
159 avila_pata_data.cs1_cfg = IXP4XX_EXP_CS2;
160
161 platform_device_register(&avila_pata);
162
163 }
164
165 MACHINE_START(AVILA, "Gateworks Avila Network Platform")
166 /* Maintainer: Deepak Saxena <dsaxena@plexity.net> */
167 .map_io = ixp4xx_map_io,
168 .init_early = ixp4xx_init_early,
169 .init_irq = ixp4xx_init_irq,
170 .init_time = ixp4xx_timer_init,
171 .atag_offset = 0x100,
172 .init_machine = avila_init,
173 #if defined(CONFIG_PCI)
174 .dma_zone_size = SZ_64M,
175 #endif
176 .restart = ixp4xx_restart,
177 MACHINE_END
178
179 /*
180 * Loft is functionally equivalent to Avila except that it has a
181 * different number for the maximum PCI devices. The MACHINE
182 * structure below is identical to Avila except for the comment.
183 */
184 #ifdef CONFIG_MACH_LOFT
185 MACHINE_START(LOFT, "Giant Shoulder Inc Loft board")
186 /* Maintainer: Tom Billman <kernel@giantshoulderinc.com> */
187 .map_io = ixp4xx_map_io,
188 .init_early = ixp4xx_init_early,
189 .init_irq = ixp4xx_init_irq,
190 .init_time = ixp4xx_timer_init,
191 .atag_offset = 0x100,
192 .init_machine = avila_init,
193 #if defined(CONFIG_PCI)
194 .dma_zone_size = SZ_64M,
195 #endif
196 .restart = ixp4xx_restart,
197 MACHINE_END
198 #endif
199
200