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Based on 1 normalized pattern(s): 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 this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
167 lines
4 KiB
C
167 lines
4 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* arch/arm/mach-ixp4xx/gtwx5715-setup.c
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*
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* Gemtek GTWX5715 (Linksys WRV54G) board setup
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*
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* Copyright (C) 2004 George T. Joseph
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* Derived from Coyote
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*/
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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 <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/irq.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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/* GPIO 5,6,7 and 12 are hard wired to the Kendin KS8995M Switch
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and operate as an SPI type interface. The details of the interface
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are available on Kendin/Micrel's web site. */
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#define GTWX5715_KSSPI_SELECT 5
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#define GTWX5715_KSSPI_TXD 6
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#define GTWX5715_KSSPI_CLOCK 7
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#define GTWX5715_KSSPI_RXD 12
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/* The "reset" button is wired to GPIO 3.
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The GPIO is brought "low" when the button is pushed. */
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#define GTWX5715_BUTTON_GPIO 3
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/* Board Label Front Label
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LED1 Power
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LED2 Wireless-G
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LED3 not populated but could be
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LED4 Internet
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LED5 - LED8 Controlled by KS8995M Switch
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LED9 DMZ */
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#define GTWX5715_LED1_GPIO 2
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#define GTWX5715_LED2_GPIO 9
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#define GTWX5715_LED3_GPIO 8
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#define GTWX5715_LED4_GPIO 1
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#define GTWX5715_LED9_GPIO 4
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/*
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* Xscale UART registers are 32 bits wide with only the least
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* significant 8 bits having any meaning. From a configuration
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* perspective, this means 2 things...
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*
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* Setting .regshift = 2 so that the standard 16550 registers
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* line up on every 4th byte.
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*
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* Shifting the register start virtual address +3 bytes when
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* compiled big-endian. Since register writes are done on a
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* single byte basis, if the shift isn't done the driver will
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* write the value into the most significant byte of the register,
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* which is ignored, instead of the least significant.
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*/
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#ifdef __ARMEB__
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#define REG_OFFSET 3
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#else
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#define REG_OFFSET 0
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#endif
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/*
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* Only the second or "console" uart is connected on the gtwx5715.
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*/
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static struct resource gtwx5715_uart_resources[] = {
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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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.start = IRQ_IXP4XX_UART2,
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.end = IRQ_IXP4XX_UART2,
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.flags = IORESOURCE_IRQ,
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},
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{ },
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};
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static struct plat_serial8250_port gtwx5715_uart_platform_data[] = {
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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 gtwx5715_uart_device = {
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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 = gtwx5715_uart_platform_data,
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},
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.num_resources = 2,
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.resource = gtwx5715_uart_resources,
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};
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static struct flash_platform_data gtwx5715_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 gtwx5715_flash_resource = {
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device gtwx5715_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 = >wx5715_flash_data,
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},
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.num_resources = 1,
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.resource = >wx5715_flash_resource,
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};
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static struct platform_device *gtwx5715_devices[] __initdata = {
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>wx5715_uart_device,
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>wx5715_flash,
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};
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static void __init gtwx5715_init(void)
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{
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ixp4xx_sys_init();
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gtwx5715_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
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gtwx5715_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_8M - 1;
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platform_add_devices(gtwx5715_devices, ARRAY_SIZE(gtwx5715_devices));
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}
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MACHINE_START(GTWX5715, "Gemtek GTWX5715 (Linksys WRV54G)")
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/* Maintainer: George Joseph */
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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 = gtwx5715_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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