| /* |
| * arch/arm/mach-ep93xx/ts72xx.c |
| * Technologic Systems TS72xx SBC support. |
| * |
| * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or (at |
| * your option) any later version. |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/mm.h> |
| #include <linux/sched.h> |
| #include <linux/interrupt.h> |
| #include <linux/ioport.h> |
| #include <linux/mtd/physmap.h> |
| #include <linux/platform_device.h> |
| #include <linux/m48t86.h> |
| #include <linux/io.h> |
| #include <linux/i2c.h> |
| #include <mach/hardware.h> |
| #include <asm/mach-types.h> |
| #include <asm/mach/arch.h> |
| #include <asm/mach/map.h> |
| |
| static struct map_desc ts72xx_io_desc[] __initdata = { |
| { |
| .virtual = TS72XX_MODEL_VIRT_BASE, |
| .pfn = __phys_to_pfn(TS72XX_MODEL_PHYS_BASE), |
| .length = TS72XX_MODEL_SIZE, |
| .type = MT_DEVICE, |
| }, { |
| .virtual = TS72XX_OPTIONS_VIRT_BASE, |
| .pfn = __phys_to_pfn(TS72XX_OPTIONS_PHYS_BASE), |
| .length = TS72XX_OPTIONS_SIZE, |
| .type = MT_DEVICE, |
| }, { |
| .virtual = TS72XX_OPTIONS2_VIRT_BASE, |
| .pfn = __phys_to_pfn(TS72XX_OPTIONS2_PHYS_BASE), |
| .length = TS72XX_OPTIONS2_SIZE, |
| .type = MT_DEVICE, |
| }, { |
| .virtual = TS72XX_RTC_INDEX_VIRT_BASE, |
| .pfn = __phys_to_pfn(TS72XX_RTC_INDEX_PHYS_BASE), |
| .length = TS72XX_RTC_INDEX_SIZE, |
| .type = MT_DEVICE, |
| }, { |
| .virtual = TS72XX_RTC_DATA_VIRT_BASE, |
| .pfn = __phys_to_pfn(TS72XX_RTC_DATA_PHYS_BASE), |
| .length = TS72XX_RTC_DATA_SIZE, |
| .type = MT_DEVICE, |
| } |
| }; |
| |
| static struct map_desc ts72xx_nand_io_desc[] __initdata = { |
| { |
| .virtual = TS72XX_NAND_DATA_VIRT_BASE, |
| .pfn = __phys_to_pfn(TS72XX_NAND1_DATA_PHYS_BASE), |
| .length = TS72XX_NAND_DATA_SIZE, |
| .type = MT_DEVICE, |
| }, { |
| .virtual = TS72XX_NAND_CONTROL_VIRT_BASE, |
| .pfn = __phys_to_pfn(TS72XX_NAND1_CONTROL_PHYS_BASE), |
| .length = TS72XX_NAND_CONTROL_SIZE, |
| .type = MT_DEVICE, |
| }, { |
| .virtual = TS72XX_NAND_BUSY_VIRT_BASE, |
| .pfn = __phys_to_pfn(TS72XX_NAND1_BUSY_PHYS_BASE), |
| .length = TS72XX_NAND_BUSY_SIZE, |
| .type = MT_DEVICE, |
| } |
| }; |
| |
| static struct map_desc ts72xx_alternate_nand_io_desc[] __initdata = { |
| { |
| .virtual = TS72XX_NAND_DATA_VIRT_BASE, |
| .pfn = __phys_to_pfn(TS72XX_NAND2_DATA_PHYS_BASE), |
| .length = TS72XX_NAND_DATA_SIZE, |
| .type = MT_DEVICE, |
| }, { |
| .virtual = TS72XX_NAND_CONTROL_VIRT_BASE, |
| .pfn = __phys_to_pfn(TS72XX_NAND2_CONTROL_PHYS_BASE), |
| .length = TS72XX_NAND_CONTROL_SIZE, |
| .type = MT_DEVICE, |
| }, { |
| .virtual = TS72XX_NAND_BUSY_VIRT_BASE, |
| .pfn = __phys_to_pfn(TS72XX_NAND2_BUSY_PHYS_BASE), |
| .length = TS72XX_NAND_BUSY_SIZE, |
| .type = MT_DEVICE, |
| } |
| }; |
| |
| static void __init ts72xx_map_io(void) |
| { |
| ep93xx_map_io(); |
| iotable_init(ts72xx_io_desc, ARRAY_SIZE(ts72xx_io_desc)); |
| |
| /* |
| * The TS-7200 has NOR flash, the other models have NAND flash. |
| */ |
| if (!board_is_ts7200()) { |
| if (is_ts9420_installed()) { |
| iotable_init(ts72xx_alternate_nand_io_desc, |
| ARRAY_SIZE(ts72xx_alternate_nand_io_desc)); |
| } else { |
| iotable_init(ts72xx_nand_io_desc, |
| ARRAY_SIZE(ts72xx_nand_io_desc)); |
| } |
| } |
| } |
| |
| static struct physmap_flash_data ts72xx_flash_data = { |
| .width = 1, |
| }; |
| |
| static struct resource ts72xx_flash_resource = { |
| .start = TS72XX_NOR_PHYS_BASE, |
| .end = TS72XX_NOR_PHYS_BASE + SZ_16M - 1, |
| .flags = IORESOURCE_MEM, |
| }; |
| |
| static struct platform_device ts72xx_flash = { |
| .name = "physmap-flash", |
| .id = 0, |
| .dev = { |
| .platform_data = &ts72xx_flash_data, |
| }, |
| .num_resources = 1, |
| .resource = &ts72xx_flash_resource, |
| }; |
| |
| static unsigned char ts72xx_rtc_readbyte(unsigned long addr) |
| { |
| __raw_writeb(addr, TS72XX_RTC_INDEX_VIRT_BASE); |
| return __raw_readb(TS72XX_RTC_DATA_VIRT_BASE); |
| } |
| |
| static void ts72xx_rtc_writebyte(unsigned char value, unsigned long addr) |
| { |
| __raw_writeb(addr, TS72XX_RTC_INDEX_VIRT_BASE); |
| __raw_writeb(value, TS72XX_RTC_DATA_VIRT_BASE); |
| } |
| |
| static struct m48t86_ops ts72xx_rtc_ops = { |
| .readbyte = ts72xx_rtc_readbyte, |
| .writebyte = ts72xx_rtc_writebyte, |
| }; |
| |
| static struct platform_device ts72xx_rtc_device = { |
| .name = "rtc-m48t86", |
| .id = -1, |
| .dev = { |
| .platform_data = &ts72xx_rtc_ops, |
| }, |
| .num_resources = 0, |
| }; |
| |
| static struct ep93xx_eth_data ts72xx_eth_data = { |
| .phy_id = 1, |
| }; |
| |
| static void __init ts72xx_init_machine(void) |
| { |
| ep93xx_init_devices(); |
| if (board_is_ts7200()) |
| platform_device_register(&ts72xx_flash); |
| platform_device_register(&ts72xx_rtc_device); |
| |
| ep93xx_register_eth(&ts72xx_eth_data, 1); |
| } |
| |
| MACHINE_START(TS72XX, "Technologic Systems TS-72xx SBC") |
| /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */ |
| .phys_io = EP93XX_APB_PHYS_BASE, |
| .io_pg_offst = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc, |
| .boot_params = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100, |
| .map_io = ts72xx_map_io, |
| .init_irq = ep93xx_init_irq, |
| .timer = &ep93xx_timer, |
| .init_machine = ts72xx_init_machine, |
| MACHINE_END |