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282 lines
6.8 KiB
282 lines
6.8 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* arch/arm/mach-ixp4xx/vulcan-setup.c |
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* |
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* Arcom/Eurotech Vulcan board-setup |
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* |
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* Copyright (C) 2010 Marc Zyngier <[email protected]> |
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* |
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* based on fsg-setup.c: |
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* Copyright (C) 2008 Rod Whitby <[email protected]> |
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*/ |
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#include <linux/if_ether.h> |
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#include <linux/irq.h> |
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#include <linux/serial.h> |
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#include <linux/serial_8250.h> |
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#include <linux/io.h> |
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#include <linux/w1-gpio.h> |
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#include <linux/gpio/machine.h> |
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#include <linux/mtd/plat-ram.h> |
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#include <asm/mach-types.h> |
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#include <asm/mach/arch.h> |
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#include <asm/mach/flash.h> |
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#include "irqs.h" |
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static struct flash_platform_data vulcan_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 vulcan_flash_resource = { |
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.flags = IORESOURCE_MEM, |
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}; |
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static struct platform_device vulcan_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 = &vulcan_flash_data, |
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}, |
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.resource = &vulcan_flash_resource, |
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.num_resources = 1, |
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}; |
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static struct platdata_mtd_ram vulcan_sram_data = { |
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.mapname = "Vulcan SRAM", |
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.bankwidth = 1, |
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}; |
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static struct resource vulcan_sram_resource = { |
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.flags = IORESOURCE_MEM, |
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}; |
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static struct platform_device vulcan_sram = { |
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.name = "mtd-ram", |
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.id = 0, |
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.dev = { |
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.platform_data = &vulcan_sram_data, |
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}, |
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.resource = &vulcan_sram_resource, |
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.num_resources = 1, |
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}; |
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static struct resource vulcan_uart_resources[] = { |
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[0] = { |
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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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[1] = { |
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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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[2] = { |
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.flags = IORESOURCE_MEM, |
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}, |
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}; |
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static struct plat_serial8250_port vulcan_uart_data[] = { |
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[0] = { |
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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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[1] = { |
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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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[2] = { |
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.irq = IXP4XX_GPIO_IRQ(4), |
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.irqflags = IRQF_TRIGGER_LOW, |
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.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, |
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.iotype = UPIO_MEM, |
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.uartclk = 1843200, |
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}, |
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[3] = { |
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.irq = IXP4XX_GPIO_IRQ(4), |
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.irqflags = IRQF_TRIGGER_LOW, |
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.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, |
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.iotype = UPIO_MEM, |
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.uartclk = 1843200, |
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}, |
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{ } |
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}; |
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static struct platform_device vulcan_uart = { |
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.name = "serial8250", |
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.id = PLAT8250_DEV_PLATFORM, |
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.dev = { |
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.platform_data = vulcan_uart_data, |
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}, |
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.resource = vulcan_uart_resources, |
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.num_resources = ARRAY_SIZE(vulcan_uart_resources), |
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}; |
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static struct resource vulcan_npeb_resources[] = { |
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{ |
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.start = IXP4XX_EthB_BASE_PHYS, |
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.end = IXP4XX_EthB_BASE_PHYS + 0x0fff, |
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.flags = IORESOURCE_MEM, |
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}, |
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}; |
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static struct resource vulcan_npec_resources[] = { |
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{ |
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.start = IXP4XX_EthC_BASE_PHYS, |
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.end = IXP4XX_EthC_BASE_PHYS + 0x0fff, |
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.flags = IORESOURCE_MEM, |
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}, |
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}; |
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static struct eth_plat_info vulcan_plat_eth[] = { |
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[0] = { |
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.phy = 0, |
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.rxq = 3, |
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.txreadyq = 20, |
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}, |
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[1] = { |
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.phy = 1, |
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.rxq = 4, |
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.txreadyq = 21, |
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}, |
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}; |
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static struct platform_device vulcan_eth[] = { |
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[0] = { |
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.name = "ixp4xx_eth", |
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.id = IXP4XX_ETH_NPEB, |
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.dev = { |
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.platform_data = &vulcan_plat_eth[0], |
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}, |
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.num_resources = ARRAY_SIZE(vulcan_npeb_resources), |
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.resource = vulcan_npeb_resources, |
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}, |
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[1] = { |
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.name = "ixp4xx_eth", |
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.id = IXP4XX_ETH_NPEC, |
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.dev = { |
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.platform_data = &vulcan_plat_eth[1], |
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}, |
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.num_resources = ARRAY_SIZE(vulcan_npec_resources), |
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.resource = vulcan_npec_resources, |
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}, |
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}; |
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static struct resource vulcan_max6369_resource = { |
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.flags = IORESOURCE_MEM, |
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}; |
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static struct platform_device vulcan_max6369 = { |
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.name = "max6369_wdt", |
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.id = -1, |
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.resource = &vulcan_max6369_resource, |
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.num_resources = 1, |
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}; |
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static struct gpiod_lookup_table vulcan_w1_gpiod_table = { |
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.dev_id = "w1-gpio", |
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.table = { |
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GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", 14, NULL, 0, |
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GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), |
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}, |
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}; |
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static struct w1_gpio_platform_data vulcan_w1_gpio_pdata = { |
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/* Intentionally left blank */ |
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}; |
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static struct platform_device vulcan_w1_gpio = { |
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.name = "w1-gpio", |
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.id = 0, |
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.dev = { |
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.platform_data = &vulcan_w1_gpio_pdata, |
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}, |
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}; |
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static struct platform_device *vulcan_devices[] __initdata = { |
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&vulcan_uart, |
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&vulcan_flash, |
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&vulcan_sram, |
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&vulcan_max6369, |
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&vulcan_eth[0], |
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&vulcan_eth[1], |
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&vulcan_w1_gpio, |
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}; |
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static void __init vulcan_init(void) |
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{ |
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ixp4xx_sys_init(); |
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/* Flash is spread over both CS0 and CS1 */ |
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vulcan_flash_resource.start = IXP4XX_EXP_BUS_BASE(0); |
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vulcan_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1; |
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*IXP4XX_EXP_CS0 = IXP4XX_EXP_BUS_CS_EN | |
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IXP4XX_EXP_BUS_STROBE_T(3) | |
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IXP4XX_EXP_BUS_SIZE(0xF) | |
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IXP4XX_EXP_BUS_BYTE_RD16 | |
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IXP4XX_EXP_BUS_WR_EN; |
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*IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0; |
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/* SRAM on CS2, (256kB, 8bit, writable) */ |
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vulcan_sram_resource.start = IXP4XX_EXP_BUS_BASE(2); |
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vulcan_sram_resource.end = IXP4XX_EXP_BUS_BASE(2) + SZ_256K - 1; |
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*IXP4XX_EXP_CS2 = IXP4XX_EXP_BUS_CS_EN | |
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IXP4XX_EXP_BUS_STROBE_T(1) | |
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IXP4XX_EXP_BUS_HOLD_T(2) | |
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IXP4XX_EXP_BUS_SIZE(9) | |
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IXP4XX_EXP_BUS_SPLT_EN | |
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IXP4XX_EXP_BUS_WR_EN | |
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IXP4XX_EXP_BUS_BYTE_EN; |
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/* XR16L2551 on CS3 (Moto style, 512 bytes, 8bits, writable) */ |
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vulcan_uart_resources[2].start = IXP4XX_EXP_BUS_BASE(3); |
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vulcan_uart_resources[2].end = IXP4XX_EXP_BUS_BASE(3) + 16 - 1; |
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vulcan_uart_data[2].mapbase = vulcan_uart_resources[2].start; |
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vulcan_uart_data[3].mapbase = vulcan_uart_data[2].mapbase + 8; |
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*IXP4XX_EXP_CS3 = IXP4XX_EXP_BUS_CS_EN | |
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IXP4XX_EXP_BUS_STROBE_T(3) | |
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IXP4XX_EXP_BUS_CYCLES(IXP4XX_EXP_BUS_CYCLES_MOTOROLA)| |
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IXP4XX_EXP_BUS_WR_EN | |
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IXP4XX_EXP_BUS_BYTE_EN; |
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/* GPIOS on CS4 (512 bytes, 8bits, writable) */ |
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*IXP4XX_EXP_CS4 = IXP4XX_EXP_BUS_CS_EN | |
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IXP4XX_EXP_BUS_WR_EN | |
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IXP4XX_EXP_BUS_BYTE_EN; |
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/* max6369 on CS5 (512 bytes, 8bits, writable) */ |
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vulcan_max6369_resource.start = IXP4XX_EXP_BUS_BASE(5); |
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vulcan_max6369_resource.end = IXP4XX_EXP_BUS_BASE(5); |
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*IXP4XX_EXP_CS5 = IXP4XX_EXP_BUS_CS_EN | |
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IXP4XX_EXP_BUS_WR_EN | |
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IXP4XX_EXP_BUS_BYTE_EN; |
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gpiod_add_lookup_table(&vulcan_w1_gpiod_table); |
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platform_add_devices(vulcan_devices, ARRAY_SIZE(vulcan_devices)); |
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} |
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MACHINE_START(ARCOM_VULCAN, "Arcom/Eurotech Vulcan") |
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/* Maintainer: Marc Zyngier <[email protected]> */ |
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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 = vulcan_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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