| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* |
| 3 | * arch/arm/mach-ixp4xx/coyote-setup.c |
| 4 | * |
| 5 | * Board setup for ADI Engineering and IXDGP425 boards |
| 6 | * |
| 7 | * Copyright (C) 2003-2005 MontaVista Software, Inc. |
| 8 | * |
| 9 | * Author: Deepak Saxena <dsaxena@plexity.net> |
| 10 | */ |
| 11 | |
| 12 | #include <linux/kernel.h> |
| 13 | #include <linux/init.h> |
| 14 | #include <linux/device.h> |
| 15 | #include <linux/serial.h> |
| 16 | #include <linux/tty.h> |
| 17 | #include <linux/serial_8250.h> |
| 18 | |
| 19 | #include <asm/types.h> |
| 20 | #include <asm/setup.h> |
| 21 | #include <asm/memory.h> |
| 22 | #include <mach/hardware.h> |
| 23 | #include <asm/irq.h> |
| 24 | #include <asm/mach-types.h> |
| 25 | #include <asm/mach/arch.h> |
| 26 | #include <asm/mach/flash.h> |
| 27 | |
| 28 | #define COYOTE_IDE_BASE_PHYS IXP4XX_EXP_BUS_BASE(3) |
| 29 | #define COYOTE_IDE_BASE_VIRT 0xFFFE1000 |
| 30 | #define COYOTE_IDE_REGION_SIZE 0x1000 |
| 31 | |
| 32 | #define COYOTE_IDE_DATA_PORT 0xFFFE10E0 |
| 33 | #define COYOTE_IDE_CTRL_PORT 0xFFFE10FC |
| 34 | #define COYOTE_IDE_ERROR_PORT 0xFFFE10E2 |
| 35 | #define IRQ_COYOTE_IDE IRQ_IXP4XX_GPIO5 |
| 36 | |
| 37 | static struct flash_platform_data coyote_flash_data = { |
| 38 | .map_name = "cfi_probe", |
| 39 | .width = 2, |
| 40 | }; |
| 41 | |
| 42 | static struct resource coyote_flash_resource = { |
| 43 | .flags = IORESOURCE_MEM, |
| 44 | }; |
| 45 | |
| 46 | static struct platform_device coyote_flash = { |
| 47 | .name = "IXP4XX-Flash", |
| 48 | .id = 0, |
| 49 | .dev = { |
| 50 | .platform_data = &coyote_flash_data, |
| 51 | }, |
| 52 | .num_resources = 1, |
| 53 | .resource = &coyote_flash_resource, |
| 54 | }; |
| 55 | |
| 56 | static struct resource coyote_uart_resource = { |
| 57 | .start = IXP4XX_UART2_BASE_PHYS, |
| 58 | .end = IXP4XX_UART2_BASE_PHYS + 0x0fff, |
| 59 | .flags = IORESOURCE_MEM, |
| 60 | }; |
| 61 | |
| 62 | static struct plat_serial8250_port coyote_uart_data[] = { |
| 63 | { |
| 64 | .mapbase = IXP4XX_UART2_BASE_PHYS, |
| 65 | .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET, |
| 66 | .irq = IRQ_IXP4XX_UART2, |
| 67 | .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, |
| 68 | .iotype = UPIO_MEM, |
| 69 | .regshift = 2, |
| 70 | .uartclk = IXP4XX_UART_XTAL, |
| 71 | }, |
| 72 | { }, |
| 73 | }; |
| 74 | |
| 75 | static struct platform_device coyote_uart = { |
| 76 | .name = "serial8250", |
| 77 | .id = PLAT8250_DEV_PLATFORM, |
| 78 | .dev = { |
| 79 | .platform_data = coyote_uart_data, |
| 80 | }, |
| 81 | .num_resources = 1, |
| 82 | .resource = &coyote_uart_resource, |
| 83 | }; |
| 84 | |
| 85 | static struct platform_device *coyote_devices[] __initdata = { |
| 86 | &coyote_flash, |
| 87 | &coyote_uart |
| 88 | }; |
| 89 | |
| 90 | static void __init coyote_init(void) |
| 91 | { |
| 92 | ixp4xx_sys_init(); |
| 93 | |
| 94 | coyote_flash_resource.start = IXP4XX_EXP_BUS_BASE(0); |
| 95 | coyote_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1; |
| 96 | |
| 97 | *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE; |
| 98 | *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0; |
| 99 | |
| 100 | if (machine_is_ixdpg425()) { |
| 101 | coyote_uart_data[0].membase = |
| 102 | (char*)(IXP4XX_UART1_BASE_VIRT + REG_OFFSET); |
| 103 | coyote_uart_data[0].mapbase = IXP4XX_UART1_BASE_PHYS; |
| 104 | coyote_uart_data[0].irq = IRQ_IXP4XX_UART1; |
| 105 | } |
| 106 | |
| 107 | platform_add_devices(coyote_devices, ARRAY_SIZE(coyote_devices)); |
| 108 | } |
| 109 | |
| 110 | #ifdef CONFIG_ARCH_ADI_COYOTE |
| 111 | MACHINE_START(ADI_COYOTE, "ADI Engineering Coyote") |
| 112 | /* Maintainer: MontaVista Software, Inc. */ |
| 113 | .map_io = ixp4xx_map_io, |
| 114 | .init_early = ixp4xx_init_early, |
| 115 | .init_irq = ixp4xx_init_irq, |
| 116 | .init_time = ixp4xx_timer_init, |
| 117 | .atag_offset = 0x100, |
| 118 | .init_machine = coyote_init, |
| 119 | #if defined(CONFIG_PCI) |
| 120 | .dma_zone_size = SZ_64M, |
| 121 | #endif |
| 122 | .restart = ixp4xx_restart, |
| 123 | MACHINE_END |
| 124 | #endif |
| 125 | |
| 126 | /* |
| 127 | * IXDPG425 is identical to Coyote except for which serial port |
| 128 | * is connected. |
| 129 | */ |
| 130 | #ifdef CONFIG_MACH_IXDPG425 |
| 131 | MACHINE_START(IXDPG425, "Intel IXDPG425") |
| 132 | /* Maintainer: MontaVista Software, Inc. */ |
| 133 | .map_io = ixp4xx_map_io, |
| 134 | .init_early = ixp4xx_init_early, |
| 135 | .init_irq = ixp4xx_init_irq, |
| 136 | .init_time = ixp4xx_timer_init, |
| 137 | .atag_offset = 0x100, |
| 138 | .init_machine = coyote_init, |
| 139 | .restart = ixp4xx_restart, |
| 140 | MACHINE_END |
| 141 | #endif |
| 142 | |