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Linux/arch/arm/mach-ixp4xx/avila-setup.c

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  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 
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 

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