| 1 | /* |
| 2 | * linux/arch/arm/mach-iop3xx/iop331-setup.c |
| 3 | * |
| 4 | * Author: Dave Jiang (dave.jiang@intel.com) |
| 5 | * Copyright (C) 2004 Intel Corporation. |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 as |
| 9 | * published by the Free Software Foundation. |
| 10 | * |
| 11 | */ |
| 12 | #include <linux/mm.h> |
| 13 | #include <linux/init.h> |
| 14 | #include <linux/major.h> |
| 15 | #include <linux/fs.h> |
| 16 | #include <linux/platform_device.h> |
| 17 | #include <linux/serial.h> |
| 18 | #include <linux/tty.h> |
| 19 | #include <linux/serial_8250.h> |
| 20 | |
| 21 | #include <asm/io.h> |
| 22 | #include <asm/pgtable.h> |
| 23 | #include <asm/page.h> |
| 24 | #include <asm/mach/map.h> |
| 25 | #include <asm/setup.h> |
| 26 | #include <asm/system.h> |
| 27 | #include <asm/memory.h> |
| 28 | #include <asm/hardware.h> |
| 29 | #include <asm/mach-types.h> |
| 30 | #include <asm/mach/arch.h> |
| 31 | |
| 32 | #define IOP331_UART_XTAL 33334000 |
| 33 | |
| 34 | /* |
| 35 | * Standard IO mapping for all IOP331 based systems |
| 36 | */ |
| 37 | static struct map_desc iop331_std_desc[] __initdata = { |
| 38 | { /* mem mapped registers */ |
| 39 | .virtual = IOP331_VIRT_MEM_BASE, |
| 40 | .pfn = __phys_to_pfn(IOP331_PHYS_MEM_BASE), |
| 41 | .length = 0x00002000, |
| 42 | .type = MT_DEVICE |
| 43 | }, { /* PCI IO space */ |
| 44 | .virtual = IOP331_PCI_LOWER_IO_VA, |
| 45 | .pfn = __phys_to_pfn(IOP331_PCI_LOWER_IO_PA), |
| 46 | .length = IOP331_PCI_IO_WINDOW_SIZE, |
| 47 | .type = MT_DEVICE |
| 48 | } |
| 49 | }; |
| 50 | |
| 51 | static struct resource iop33x_uart0_resources[] = { |
| 52 | [0] = { |
| 53 | .start = IOP331_UART0_PHYS, |
| 54 | .end = IOP331_UART0_PHYS + 0x3f, |
| 55 | .flags = IORESOURCE_MEM, |
| 56 | }, |
| 57 | [1] = { |
| 58 | .start = IRQ_IOP331_UART0, |
| 59 | .end = IRQ_IOP331_UART0, |
| 60 | .flags = IORESOURCE_IRQ |
| 61 | } |
| 62 | }; |
| 63 | |
| 64 | static struct resource iop33x_uart1_resources[] = { |
| 65 | [0] = { |
| 66 | .start = IOP331_UART1_PHYS, |
| 67 | .end = IOP331_UART1_PHYS + 0x3f, |
| 68 | .flags = IORESOURCE_MEM, |
| 69 | }, |
| 70 | [1] = { |
| 71 | .start = IRQ_IOP331_UART1, |
| 72 | .end = IRQ_IOP331_UART1, |
| 73 | .flags = IORESOURCE_IRQ |
| 74 | } |
| 75 | }; |
| 76 | |
| 77 | static struct plat_serial8250_port iop33x_uart0_data[] = { |
| 78 | { |
| 79 | .membase = (char*)(IOP331_UART0_VIRT), |
| 80 | .mapbase = (IOP331_UART0_PHYS), |
| 81 | .irq = IRQ_IOP331_UART0, |
| 82 | .uartclk = IOP331_UART_XTAL, |
| 83 | .regshift = 2, |
| 84 | .iotype = UPIO_MEM, |
| 85 | .flags = UPF_SKIP_TEST, |
| 86 | }, |
| 87 | { }, |
| 88 | }; |
| 89 | |
| 90 | static struct plat_serial8250_port iop33x_uart1_data[] = { |
| 91 | { |
| 92 | .membase = (char*)(IOP331_UART1_VIRT), |
| 93 | .mapbase = (IOP331_UART1_PHYS), |
| 94 | .irq = IRQ_IOP331_UART1, |
| 95 | .uartclk = IOP331_UART_XTAL, |
| 96 | .regshift = 2, |
| 97 | .iotype = UPIO_MEM, |
| 98 | .flags = UPF_SKIP_TEST, |
| 99 | }, |
| 100 | { }, |
| 101 | }; |
| 102 | |
| 103 | static struct platform_device iop33x_uart0 = { |
| 104 | .name = "serial8250", |
| 105 | .id = PLAT8250_DEV_PLATFORM, |
| 106 | .dev.platform_data = iop33x_uart0_data, |
| 107 | .num_resources = 2, |
| 108 | .resource = iop33x_uart0_resources, |
| 109 | }; |
| 110 | |
| 111 | static struct platform_device iop33x_uart1 = { |
| 112 | .name = "serial8250", |
| 113 | .id = PLAT8250_DEV_PLATFORM1, |
| 114 | .dev.platform_data = iop33x_uart1_data, |
| 115 | .num_resources = 2, |
| 116 | .resource = iop33x_uart1_resources, |
| 117 | }; |
| 118 | |
| 119 | static struct resource iop33x_i2c_0_resources[] = { |
| 120 | [0] = { |
| 121 | .start = 0xfffff680, |
| 122 | .end = 0xfffff698, |
| 123 | .flags = IORESOURCE_MEM, |
| 124 | }, |
| 125 | [1] = { |
| 126 | .start = IRQ_IOP331_I2C_0, |
| 127 | .end = IRQ_IOP331_I2C_0, |
| 128 | .flags = IORESOURCE_IRQ |
| 129 | } |
| 130 | }; |
| 131 | |
| 132 | static struct resource iop33x_i2c_1_resources[] = { |
| 133 | [0] = { |
| 134 | .start = 0xfffff6a0, |
| 135 | .end = 0xfffff6b8, |
| 136 | .flags = IORESOURCE_MEM, |
| 137 | }, |
| 138 | [1] = { |
| 139 | .start = IRQ_IOP331_I2C_1, |
| 140 | .end = IRQ_IOP331_I2C_1, |
| 141 | .flags = IORESOURCE_IRQ |
| 142 | } |
| 143 | }; |
| 144 | |
| 145 | static struct platform_device iop33x_i2c_0_controller = { |
| 146 | .name = "IOP3xx-I2C", |
| 147 | .id = 0, |
| 148 | .num_resources = 2, |
| 149 | .resource = iop33x_i2c_0_resources |
| 150 | }; |
| 151 | |
| 152 | static struct platform_device iop33x_i2c_1_controller = { |
| 153 | .name = "IOP3xx-I2C", |
| 154 | .id = 1, |
| 155 | .num_resources = 2, |
| 156 | .resource = iop33x_i2c_1_resources |
| 157 | }; |
| 158 | |
| 159 | static struct platform_device *iop33x_devices[] __initdata = { |
| 160 | &iop33x_uart0, |
| 161 | &iop33x_uart1, |
| 162 | &iop33x_i2c_0_controller, |
| 163 | &iop33x_i2c_1_controller |
| 164 | }; |
| 165 | |
| 166 | void __init iop33x_init(void) |
| 167 | { |
| 168 | if(iop_is_331()) |
| 169 | { |
| 170 | platform_add_devices(iop33x_devices, |
| 171 | ARRAY_SIZE(iop33x_devices)); |
| 172 | } |
| 173 | } |
| 174 | |
| 175 | void __init iop331_map_io(void) |
| 176 | { |
| 177 | iotable_init(iop331_std_desc, ARRAY_SIZE(iop331_std_desc)); |
| 178 | } |
| 179 | |
| 180 | #ifdef CONFIG_ARCH_IOP33X |
| 181 | extern void iop331_init_irq(void); |
| 182 | extern struct sys_timer iop331_timer; |
| 183 | #endif |
| 184 | |
| 185 | #ifdef CONFIG_ARCH_IQ80331 |
| 186 | extern void iq80331_map_io(void); |
| 187 | #endif |
| 188 | |
| 189 | #ifdef CONFIG_MACH_IQ80332 |
| 190 | extern void iq80332_map_io(void); |
| 191 | #endif |
| 192 | |
| 193 | #if defined(CONFIG_ARCH_IQ80331) |
| 194 | MACHINE_START(IQ80331, "Intel IQ80331") |
| 195 | /* Maintainer: Intel Corp. */ |
| 196 | .phys_io = 0xfefff000, |
| 197 | .io_pg_offst = ((0xfffff000) >> 18) & 0xfffc, // virtual, physical |
| 198 | .map_io = iq80331_map_io, |
| 199 | .init_irq = iop331_init_irq, |
| 200 | .timer = &iop331_timer, |
| 201 | .boot_params = 0x0100, |
| 202 | .init_machine = iop33x_init, |
| 203 | MACHINE_END |
| 204 | |
| 205 | #elif defined(CONFIG_MACH_IQ80332) |
| 206 | MACHINE_START(IQ80332, "Intel IQ80332") |
| 207 | /* Maintainer: Intel Corp. */ |
| 208 | .phys_io = 0xfefff000, |
| 209 | .io_pg_offst = ((0xfffff000) >> 18) & 0xfffc, // virtual, physical |
| 210 | .map_io = iq80332_map_io, |
| 211 | .init_irq = iop331_init_irq, |
| 212 | .timer = &iop331_timer, |
| 213 | .boot_params = 0x0100, |
| 214 | .init_machine = iop33x_init, |
| 215 | MACHINE_END |
| 216 | |
| 217 | #else |
| 218 | #error No machine descriptor defined for this IOP3XX implementation |
| 219 | #endif |
| 220 | |
| 221 | |