208 lines
4.8 KiB
C
208 lines
4.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* arch/arm/mach-ixp4xx/avila-setup.c
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*
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* Gateworks Avila board-setup
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*
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* Author: Michael-Luke Jones <mlj28@cam.ac.uk>
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*
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* Based on ixdp-setup.c
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* Copyright (C) 2003-2005 MontaVista Software, Inc.
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*
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* Author: Deepak Saxena <dsaxena@plexity.net>
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/device.h>
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#include <linux/serial.h>
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#include <linux/tty.h>
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#include <linux/serial_8250.h>
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#include <linux/gpio/machine.h>
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#include <asm/types.h>
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#include <asm/setup.h>
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#include <asm/memory.h>
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#include <mach/hardware.h>
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#include <asm/mach-types.h>
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#include <asm/irq.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/flash.h>
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#define AVILA_SDA_PIN 7
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#define AVILA_SCL_PIN 6
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static struct flash_platform_data avila_flash_data = {
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.map_name = "cfi_probe",
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.width = 2,
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};
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static struct resource avila_flash_resource = {
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device avila_flash = {
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.name = "IXP4XX-Flash",
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.id = 0,
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.dev = {
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.platform_data = &avila_flash_data,
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},
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.num_resources = 1,
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.resource = &avila_flash_resource,
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};
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static struct gpiod_lookup_table avila_i2c_gpiod_table = {
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.dev_id = "i2c-gpio.0",
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.table = {
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GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", AVILA_SDA_PIN,
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NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
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GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", AVILA_SCL_PIN,
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NULL, 1, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
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},
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};
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static struct platform_device avila_i2c_gpio = {
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.name = "i2c-gpio",
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.id = 0,
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.dev = {
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.platform_data = NULL,
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},
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};
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static struct resource avila_uart_resources[] = {
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{
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.start = IXP4XX_UART1_BASE_PHYS,
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.end = IXP4XX_UART1_BASE_PHYS + 0x0fff,
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.flags = IORESOURCE_MEM
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},
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{
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.start = IXP4XX_UART2_BASE_PHYS,
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.end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
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.flags = IORESOURCE_MEM
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}
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};
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static struct plat_serial8250_port avila_uart_data[] = {
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{
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.mapbase = IXP4XX_UART1_BASE_PHYS,
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.membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
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.irq = IRQ_IXP4XX_UART1,
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.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
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.iotype = UPIO_MEM,
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.regshift = 2,
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.uartclk = IXP4XX_UART_XTAL,
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},
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{
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.mapbase = IXP4XX_UART2_BASE_PHYS,
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.membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
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.irq = IRQ_IXP4XX_UART2,
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.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
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.iotype = UPIO_MEM,
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.regshift = 2,
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.uartclk = IXP4XX_UART_XTAL,
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},
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{ },
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};
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static struct platform_device avila_uart = {
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.name = "serial8250",
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.id = PLAT8250_DEV_PLATFORM,
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.dev.platform_data = avila_uart_data,
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.num_resources = 2,
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.resource = avila_uart_resources
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};
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static struct resource avila_pata_resources[] = {
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{
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.flags = IORESOURCE_MEM
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},
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{
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.flags = IORESOURCE_MEM,
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},
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{
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.name = "intrq",
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.start = IRQ_IXP4XX_GPIO12,
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.end = IRQ_IXP4XX_GPIO12,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct ixp4xx_pata_data avila_pata_data = {
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.cs0_bits = 0xbfff0043,
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.cs1_bits = 0xbfff0043,
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};
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static struct platform_device avila_pata = {
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.name = "pata_ixp4xx_cf",
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.id = 0,
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.dev.platform_data = &avila_pata_data,
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.num_resources = ARRAY_SIZE(avila_pata_resources),
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.resource = avila_pata_resources,
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};
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static struct platform_device *avila_devices[] __initdata = {
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&avila_i2c_gpio,
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&avila_flash,
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&avila_uart
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};
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static void __init avila_init(void)
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{
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ixp4xx_sys_init();
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avila_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
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avila_flash_resource.end =
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IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
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gpiod_add_lookup_table(&avila_i2c_gpiod_table);
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platform_add_devices(avila_devices, ARRAY_SIZE(avila_devices));
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avila_pata_resources[0].start = IXP4XX_EXP_BUS_BASE(1);
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avila_pata_resources[0].end = IXP4XX_EXP_BUS_END(1);
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avila_pata_resources[1].start = IXP4XX_EXP_BUS_BASE(2);
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avila_pata_resources[1].end = IXP4XX_EXP_BUS_END(2);
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avila_pata_data.cs0_cfg = IXP4XX_EXP_CS1;
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avila_pata_data.cs1_cfg = IXP4XX_EXP_CS2;
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platform_device_register(&avila_pata);
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}
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MACHINE_START(AVILA, "Gateworks Avila Network Platform")
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/* Maintainer: Deepak Saxena <dsaxena@plexity.net> */
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.map_io = ixp4xx_map_io,
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.init_early = ixp4xx_init_early,
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.init_irq = ixp4xx_init_irq,
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.init_time = ixp4xx_timer_init,
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.atag_offset = 0x100,
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.init_machine = avila_init,
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#if defined(CONFIG_PCI)
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.dma_zone_size = SZ_64M,
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#endif
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.restart = ixp4xx_restart,
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MACHINE_END
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/*
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* Loft is functionally equivalent to Avila except that it has a
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* different number for the maximum PCI devices. The MACHINE
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* structure below is identical to Avila except for the comment.
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*/
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#ifdef CONFIG_MACH_LOFT
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MACHINE_START(LOFT, "Giant Shoulder Inc Loft board")
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/* Maintainer: Tom Billman <kernel@giantshoulderinc.com> */
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.map_io = ixp4xx_map_io,
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.init_early = ixp4xx_init_early,
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.init_irq = ixp4xx_init_irq,
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.init_time = ixp4xx_timer_init,
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.atag_offset = 0x100,
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.init_machine = avila_init,
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#if defined(CONFIG_PCI)
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.dma_zone_size = SZ_64M,
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#endif
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.restart = ixp4xx_restart,
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MACHINE_END
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#endif
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