+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0
-/*
- * arch/arm/mach-ixp4xx/fsg-setup.c
- *
- * FSG board-setup
- *
- * Copyright (C) 2008 Rod Whitby <rod@whitby.id.au>
- *
- * based on ixdp425-setup.c:
- * Copyright (C) 2003-2004 MontaVista Software, Inc.
- * based on nslu2-power.c
- * Copyright (C) 2005 Tower Technologies
- *
- * Author: Rod Whitby <rod@whitby.id.au>
- * Maintainers: http://www.nslu2-linux.org/
- *
- */
-#include <linux/gpio.h>
-#include <linux/if_ether.h>
-#include <linux/irq.h>
-#include <linux/serial.h>
-#include <linux/serial_8250.h>
-#include <linux/leds.h>
-#include <linux/reboot.h>
-#include <linux/i2c.h>
-#include <linux/gpio/machine.h>
-#include <linux/io.h>
-#include <asm/mach-types.h>
-#include <asm/mach/arch.h>
-#include <asm/mach/flash.h>
-#include <mach/hardware.h>
-
-#include "irqs.h"
-
-#define FSG_SDA_PIN 12
-#define FSG_SCL_PIN 13
-
-#define FSG_SB_GPIO 4 /* sync button */
-#define FSG_RB_GPIO 9 /* reset button */
-#define FSG_UB_GPIO 10 /* usb button */
-
-static struct flash_platform_data fsg_flash_data = {
- .map_name = "cfi_probe",
- .width = 2,
-};
-
-static struct resource fsg_flash_resource = {
- .flags = IORESOURCE_MEM,
-};
-
-static struct platform_device fsg_flash = {
- .name = "IXP4XX-Flash",
- .id = 0,
- .dev = {
- .platform_data = &fsg_flash_data,
- },
- .num_resources = 1,
- .resource = &fsg_flash_resource,
-};
-
-static struct gpiod_lookup_table fsg_i2c_gpiod_table = {
- .dev_id = "i2c-gpio.0",
- .table = {
- GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", FSG_SDA_PIN,
- NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
- GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", FSG_SCL_PIN,
- NULL, 1, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
- },
-};
-
-static struct platform_device fsg_i2c_gpio = {
- .name = "i2c-gpio",
- .id = 0,
- .dev = {
- .platform_data = NULL,
- },
-};
-
-static struct i2c_board_info __initdata fsg_i2c_board_info [] = {
- {
- I2C_BOARD_INFO("isl1208", 0x6f),
- },
-};
-
-static struct resource fsg_uart_resources[] = {
- {
- .start = IXP4XX_UART1_BASE_PHYS,
- .end = IXP4XX_UART1_BASE_PHYS + 0x0fff,
- .flags = IORESOURCE_MEM,
- },
- {
- .start = IXP4XX_UART2_BASE_PHYS,
- .end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
- .flags = IORESOURCE_MEM,
- }
-};
-
-static struct plat_serial8250_port fsg_uart_data[] = {
- {
- .mapbase = IXP4XX_UART1_BASE_PHYS,
- .membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
- .irq = IRQ_IXP4XX_UART1,
- .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
- .iotype = UPIO_MEM,
- .regshift = 2,
- .uartclk = IXP4XX_UART_XTAL,
- },
- {
- .mapbase = IXP4XX_UART2_BASE_PHYS,
- .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
- .irq = IRQ_IXP4XX_UART2,
- .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
- .iotype = UPIO_MEM,
- .regshift = 2,
- .uartclk = IXP4XX_UART_XTAL,
- },
- { }
-};
-
-static struct platform_device fsg_uart = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = fsg_uart_data,
- },
- .num_resources = ARRAY_SIZE(fsg_uart_resources),
- .resource = fsg_uart_resources,
-};
-
-static struct platform_device fsg_leds = {
- .name = "fsg-led",
- .id = -1,
-};
-
-/* Built-in 10/100 Ethernet MAC interfaces */
-static struct resource fsg_eth_npeb_resources[] = {
- {
- .start = IXP4XX_EthB_BASE_PHYS,
- .end = IXP4XX_EthB_BASE_PHYS + 0x0fff,
- .flags = IORESOURCE_MEM,
- },
-};
-
-static struct resource fsg_eth_npec_resources[] = {
- {
- .start = IXP4XX_EthC_BASE_PHYS,
- .end = IXP4XX_EthC_BASE_PHYS + 0x0fff,
- .flags = IORESOURCE_MEM,
- },
-};
-
-static struct eth_plat_info fsg_plat_eth[] = {
- {
- .phy = 5,
- .rxq = 3,
- .txreadyq = 20,
- }, {
- .phy = 4,
- .rxq = 4,
- .txreadyq = 21,
- }
-};
-
-static struct platform_device fsg_eth[] = {
- {
- .name = "ixp4xx_eth",
- .id = IXP4XX_ETH_NPEB,
- .dev = {
- .platform_data = fsg_plat_eth,
- },
- .num_resources = ARRAY_SIZE(fsg_eth_npeb_resources),
- .resource = fsg_eth_npeb_resources,
- }, {
- .name = "ixp4xx_eth",
- .id = IXP4XX_ETH_NPEC,
- .dev = {
- .platform_data = fsg_plat_eth + 1,
- },
- .num_resources = ARRAY_SIZE(fsg_eth_npec_resources),
- .resource = fsg_eth_npec_resources,
- }
-};
-
-static struct platform_device *fsg_devices[] __initdata = {
- &fsg_i2c_gpio,
- &fsg_flash,
- &fsg_leds,
- &fsg_eth[0],
- &fsg_eth[1],
-};
-
-static irqreturn_t fsg_power_handler(int irq, void *dev_id)
-{
- /* Signal init to do the ctrlaltdel action, this will bypass init if
- * it hasn't started and do a kernel_restart.
- */
- ctrl_alt_del();
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t fsg_reset_handler(int irq, void *dev_id)
-{
- /* This is the paper-clip reset which does an emergency reboot. */
- printk(KERN_INFO "Restarting system.\n");
- machine_restart(NULL);
-
- /* This should never be reached. */
- return IRQ_HANDLED;
-}
-
-static void __init fsg_init(void)
-{
- uint8_t __iomem *f;
-
- ixp4xx_sys_init();
-
- fsg_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
- fsg_flash_resource.end =
- IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
-
- *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
- *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
-
- /* Configure CS2 for operation, 8bit and writable */
- *IXP4XX_EXP_CS2 = 0xbfff0002;
-
- gpiod_add_lookup_table(&fsg_i2c_gpiod_table);
- i2c_register_board_info(0, fsg_i2c_board_info,
- ARRAY_SIZE(fsg_i2c_board_info));
-
- /* This is only useful on a modified machine, but it is valuable
- * to have it first in order to see debug messages, and so that
- * it does *not* get removed if platform_add_devices fails!
- */
- (void)platform_device_register(&fsg_uart);
-
- platform_add_devices(fsg_devices, ARRAY_SIZE(fsg_devices));
-
- if (request_irq(gpio_to_irq(FSG_RB_GPIO), &fsg_reset_handler,
- IRQF_TRIGGER_LOW, "FSG reset button", NULL) < 0) {
-
- printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
- gpio_to_irq(FSG_RB_GPIO));
- }
-
- if (request_irq(gpio_to_irq(FSG_SB_GPIO), &fsg_power_handler,
- IRQF_TRIGGER_LOW, "FSG power button", NULL) < 0) {
-
- printk(KERN_DEBUG "Power Button IRQ %d not available\n",
- gpio_to_irq(FSG_SB_GPIO));
- }
-
- /*
- * Map in a portion of the flash and read the MAC addresses.
- * Since it is stored in BE in the flash itself, we need to
- * byteswap it if we're in LE mode.
- */
- f = ioremap(IXP4XX_EXP_BUS_BASE(0), 0x400000);
- if (f) {
-#ifdef __ARMEB__
- int i;
- for (i = 0; i < 6; i++) {
- fsg_plat_eth[0].hwaddr[i] = readb(f + 0x3C0422 + i);
- fsg_plat_eth[1].hwaddr[i] = readb(f + 0x3C043B + i);
- }
-#else
-
- /*
- Endian-swapped reads from unaligned addresses are
- required to extract the two MACs from the big-endian
- Redboot config area in flash.
- */
-
- fsg_plat_eth[0].hwaddr[0] = readb(f + 0x3C0421);
- fsg_plat_eth[0].hwaddr[1] = readb(f + 0x3C0420);
- fsg_plat_eth[0].hwaddr[2] = readb(f + 0x3C0427);
- fsg_plat_eth[0].hwaddr[3] = readb(f + 0x3C0426);
- fsg_plat_eth[0].hwaddr[4] = readb(f + 0x3C0425);
- fsg_plat_eth[0].hwaddr[5] = readb(f + 0x3C0424);
-
- fsg_plat_eth[1].hwaddr[0] = readb(f + 0x3C0439);
- fsg_plat_eth[1].hwaddr[1] = readb(f + 0x3C043F);
- fsg_plat_eth[1].hwaddr[2] = readb(f + 0x3C043E);
- fsg_plat_eth[1].hwaddr[3] = readb(f + 0x3C043D);
- fsg_plat_eth[1].hwaddr[4] = readb(f + 0x3C043C);
- fsg_plat_eth[1].hwaddr[5] = readb(f + 0x3C0443);
-#endif
- iounmap(f);
- }
- printk(KERN_INFO "FSG: Using MAC address %pM for port 0\n",
- fsg_plat_eth[0].hwaddr);
- printk(KERN_INFO "FSG: Using MAC address %pM for port 1\n",
- fsg_plat_eth[1].hwaddr);
-
-}
-
-MACHINE_START(FSG, "Freecom FSG-3")
- /* Maintainer: www.nslu2-linux.org */
- .map_io = ixp4xx_map_io,
- .init_early = ixp4xx_init_early,
- .init_irq = ixp4xx_init_irq,
- .init_time = ixp4xx_timer_init,
- .atag_offset = 0x100,
- .init_machine = fsg_init,
-#if defined(CONFIG_PCI)
- .dma_zone_size = SZ_64M,
-#endif
- .restart = ixp4xx_restart,
-MACHINE_END
-
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