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https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
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e0a200894e
Patch from Deepak Saxena Building a kernel for IXDP425 currently includes the machine descriptors for IXDP465 and PRPMC1100 even if those machines are not configured. This means we can build a kernel that boots on those machines even though the machine_is_xxx() macro will always return 0 and other bits such as PCI won't be compiled in. This can lead to many wasted hours wondering what you have done to your kernel to make it randomly crash thus requireing large quantities of beer to be consumed. While I am all for consumption of large quantities of beer, there are better reasons to do so then stupid kernel bugs. Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
187 lines
4.6 KiB
C
187 lines
4.6 KiB
C
/*
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* arch/arm/mach-ixp4xx/ixdp425-setup.c
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*
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* IXDP425/IXCDP1100 board-setup
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*
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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 <asm/types.h>
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#include <asm/setup.h>
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#include <asm/memory.h>
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#include <asm/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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static struct flash_platform_data ixdp425_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 ixdp425_flash_resource = {
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.start = IXDP425_FLASH_BASE,
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.end = IXDP425_FLASH_BASE + IXDP425_FLASH_SIZE - 1,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device ixdp425_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 = &ixdp425_flash_data,
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},
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.num_resources = 1,
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.resource = &ixdp425_flash_resource,
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};
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static struct ixp4xx_i2c_pins ixdp425_i2c_gpio_pins = {
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.sda_pin = IXDP425_SDA_PIN,
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.scl_pin = IXDP425_SCL_PIN,
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};
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static struct platform_device ixdp425_i2c_controller = {
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.name = "IXP4XX-I2C",
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.id = 0,
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.dev = {
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.platform_data = &ixdp425_i2c_gpio_pins,
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},
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.num_resources = 0
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};
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static struct resource ixdp425_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 ixdp425_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_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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};
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static struct platform_device ixdp425_uart = {
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.name = "serial8250",
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.id = PLAT8250_DEV_PLATFORM,
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.dev.platform_data = ixdp425_uart_data,
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.num_resources = 2,
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.resource = ixdp425_uart_resources
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};
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static struct platform_device *ixdp425_devices[] __initdata = {
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&ixdp425_i2c_controller,
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&ixdp425_flash,
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&ixdp425_uart
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};
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static void __init ixdp425_init(void)
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{
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ixp4xx_sys_init();
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/*
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* IXP465 has 32MB window
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*/
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if (machine_is_ixdp465()) {
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ixdp425_flash_resource.end += IXDP425_FLASH_SIZE;
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}
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platform_add_devices(ixdp425_devices, ARRAY_SIZE(ixdp425_devices));
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}
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#ifdef CONFIG_ARCH_IXDP465
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MACHINE_START(IXDP425, "Intel IXDP425 Development Platform")
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/* Maintainer: MontaVista Software, Inc. */
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.phys_ram = PHYS_OFFSET,
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.phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
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.io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
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.map_io = ixp4xx_map_io,
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.init_irq = ixp4xx_init_irq,
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.timer = &ixp4xx_timer,
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.boot_params = 0x0100,
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.init_machine = ixdp425_init,
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MACHINE_END
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#endif
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#ifdef CONFIG_MACH_IXDP465
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MACHINE_START(IXDP465, "Intel IXDP465 Development Platform")
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/* Maintainer: MontaVista Software, Inc. */
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.phys_ram = PHYS_OFFSET,
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.phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
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.io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
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.map_io = ixp4xx_map_io,
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.init_irq = ixp4xx_init_irq,
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.timer = &ixp4xx_timer,
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.boot_params = 0x0100,
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.init_machine = ixdp425_init,
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MACHINE_END
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#endif
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#ifdef CONFIG_ARCH_PRPMC1100
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MACHINE_START(IXCDP1100, "Intel IXCDP1100 Development Platform")
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/* Maintainer: MontaVista Software, Inc. */
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.phys_ram = PHYS_OFFSET,
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.phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
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.io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
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.map_io = ixp4xx_map_io,
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.init_irq = ixp4xx_init_irq,
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.timer = &ixp4xx_timer,
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.boot_params = 0x0100,
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.init_machine = ixdp425_init,
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MACHINE_END
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#endif
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/*
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* Avila is functionally equivalent to IXDP425 except that it adds
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* a CF IDE slot hanging off the expansion bus. When we have a
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* driver for IXP4xx CF IDE with driver model support we'll move
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* Avila to it's own setup file.
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*/
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#ifdef CONFIG_ARCH_AVILA
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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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.phys_ram = PHYS_OFFSET,
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.phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
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.io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
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.map_io = ixp4xx_map_io,
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.init_irq = ixp4xx_init_irq,
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.timer = &ixp4xx_timer,
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.boot_params = 0x0100,
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.init_machine = ixdp425_init,
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MACHINE_END
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#endif
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