Board setup code for the Synology DS101 platform Signed-off-by: Alessandro Zummo Signed-off-by: Rod Whitby Signed-off-by: OEyvind Repvik arch/arm/mach-ixp4xx/ds101-setup.c | 245 +++++++++++++++++++++++++++++++++++++ 1 file changed, 245 insertions(+) --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ linux-ixp4xx/arch/arm/mach-ixp4xx/ds101-setup.c 2006-02-21 02:00:16.000000000 +0100 @@ -0,0 +1,245 @@ +/* + * Synology DS101 board setup + * + * based ixdp425-setup.c: + * Copyright (C) 2003-2004 MontaVista Software, Inc. + * + * Author: Alessandro Zummo + * Author: Rod Whitby + * Author: OEyvind Repvik + * Maintainers: http://www.nslu2-linux.org/ + * + */ + +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#ifdef CONFIG_MACLIST +#include +#endif + +#ifdef CONFIG_LEDS_CLASS +static struct resource ds101_led_resources[] = { + { + .name = "power", + .start = DS101_POWER_LED, + .end = DS101_POWER_LED, + .flags = IXP4XX_GPIO_LOW, + }, + { + .name = "usbcopy-solid", + .start = DS101_USBCOPY_SOLID_LED, + .end = DS101_USBCOPY_SOLID_LED, + .flags = IXP4XX_GPIO_LOW, + }, + { + .name = "usbcopy-blink", + .start = DS101_USBCOPY_BLINK_LED, + .end = DS101_USBCOPY_BLINK_LED, + .flags = IXP4XX_GPIO_LOW, + }, + { + .name = "status-ready", + .start = DS101_STATUSOK_LED, + .end = DS101_STATUSOK_LED, + .flags = IXP4XX_GPIO_LOW, + }, + { + .name = "status-error", + .start = DS101_STATUSBAD_LED, + .start = DS101_STATUSBAD_LED, + .flags = IXP4XX_GPIO_LOW, + } +}; + + +static struct platform_device ds101_leds = { + .name = "IXP4XX-GPIO-LED", + .id = -1, + .num_resources = ARRAY_SIZE(ds101_led_resources), + .resource = ds101_led_resources, +}; +#endif + +static struct ixp4xx_i2c_pins ds101_i2c_gpio_pins = { + .sda_pin = DS101_SDA_PIN, + .scl_pin = DS101_SCL_PIN, +}; + +static struct platform_device ds101_i2c_controller = { + .name = "IXP4XX-I2C", + .id = 0, + .dev.platform_data = &ds101_i2c_gpio_pins, + .num_resources = 0, +}; + +static struct platform_device ds101_beeper = { + .name = "ixp4xx-beeper", + .id = DS101_GPIO_BUZZ, + .num_resources = 0, +}; + +static struct resource ds101_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 ds101_uart_data[] = { + { + .mapbase = IXP4XX_UART1_BASE_PHYS, + .membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET, + .irq = IRQ_IXP4XX_UART1, + .flags = UPF_BOOT_AUTOCONF, + .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, + .iotype = UPIO_MEM, + .regshift = 2, + .uartclk = IXP4XX_UART_XTAL, + }, + { } +}; + +static struct platform_device ds101_uart = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM, + .dev.platform_data = ds101_uart_data, + .num_resources = 2, + .resource = ds101_uart_resources, +}; + +static struct platform_device *ds101_devices[] __initdata = { + &ds101_i2c_controller, + &ds101_beeper, +}; + +static void ds101_power_off(void) +{ + /* Simple, but effective */ + gpio_line_set(DS101_POWEROFF_GPIO, IXP4XX_GPIO_LOW); +} + +static void ds101_gpio_setup(void) +{ + /* Set up buzzer */ + gpio_line_config(DS101_GPIO_BUZZ, DS101_GPIO_OUT); + gpio_line_set(DS101_GPIO_BUZZ, DS101_GPIO_LOW); + + /* Set up power led */ + gpio_line_config(DS101_POWER_LED, DS101_GPIO_OUT); + gpio_line_set(DS101_POWER_LED, DS101_GPIO_LOW); + + /* Poweroff */ + gpio_line_config(DS101_POWEROFF_GPIO, DS101_GPIO_OUT); + gpio_line_set(DS101_POWEROFF_GPIO, DS101_GPIO_HIGH); + + /* Status leds */ + (*IXP4XX_GPIO_GPCLKR) = ((*IXP4XX_GPIO_GPCLKR) & ~DS101_GPIO_CLK0_ENABLE); + (*IXP4XX_GPIO_GPCLKR) = ((*IXP4XX_GPIO_GPCLKR) & ~DS101_GPIO_CLK1_ENABLE); + gpio_line_config(DS101_STATUSOK_LED, DS101_GPIO_OUT); + gpio_line_config(DS101_STATUSBAD_LED, DS101_GPIO_OUT); + gpio_line_set(DS101_STATUSOK_LED, DS101_GPIO_HIGH); + gpio_line_set(DS101_STATUSBAD_LED, DS101_GPIO_LOW); +}; + +static void ds101_cs0_setup(void) +{ + *IXP4XX_EXP_CS0 = DS101_EXP_CS0_INIT; +}; + +static void __init ds101_init(void) +{ + ixp4xx_sys_init(); + + ds101_cs0_setup(); /* Needed for DoC support */ + ds101_gpio_setup(); + pm_power_off = ds101_power_off; + + platform_add_devices(ds101_devices, ARRAY_SIZE(ds101_devices)); + + /* 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(&ds101_uart); + +#ifdef CONFIG_LEDS_CLASS + /* We don't care whether or not this works. */ + (void)platform_device_register(&ds101_leds); +#endif +} + +/* + * DS101 bootstrap may pass in parameters, but we zap the mem + * settings to be safe (DS101 always has 64MByte at 0, DS101J has + * 32MB). The passed in command line can override this default, we + * prepend to the config'ed default. + * + * NOTE: the startup sequence is: + * 1) Call the machine fixup + * 2) Parse the ATAG list, the ATAG_CMDLINE is copied in + * to default_command_line which is the value of *from + * 3) Parse the command line in *from (*not* + * default_command_line unless they are the same!) + * + * Setting mi->nr_banks causes (2) to 'squash' (set to ATAG_NONE) + * any ATAG_MEM tags, but mem= command line options cause nr_banks + * to be reset to 0 (on the first mem=) + */ + +static char ds101_command_line[] __initdata = + "root=/dev/sda1 rootfstype=ext3 init=/sbin/init " + "rtc-rs5c372.probe=0,0x32 " + CONFIG_CMDLINE; + +static void __init ds101_fixup(struct machine_desc *desc, + struct tag *tags, char **cmdline, struct meminfo *mi) +{ + /* The DS101 has one bank of 64MByte memory. + * NOTE: setting nr_banks != 0 causes kernel/setup.c to remove + * the mem tags from the tag list. We need do nothing here! + */ + mi->nr_banks=1; + mi->bank[0].start = 0; + mi->bank[0].size = (64*1024*1024); + mi->bank[0].node = PHYS_TO_NID(0); + /* A command line in the ATAG list will override this one, + * as is intended. + */ + strlcpy(*cmdline, ds101_command_line, COMMAND_LINE_SIZE); +} + +MACHINE_START(DS101, "Synology DiskStation DS101") + /* Maintainer: www.nslu2-linux.org */ + .phys_io = IXP4XX_PERIPHERAL_BASE_PHYS, + .io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC, + .boot_params = 0x00000100, + .fixup = ds101_fixup, + .map_io = ixp4xx_map_io, + .init_irq = ixp4xx_init_irq, + .timer = &ixp4xx_timer, + .init_machine = ds101_init, +MACHINE_END arch/arm/mach-ixp4xx/Kconfig | 8 ++++++++ arch/arm/mach-ixp4xx/Makefile | 2 +- 2 files changed, 9 insertions(+), 1 deletion(-) Index: linux-2.6.15/arch/arm/mach-ixp4xx/Kconfig =================================================================== --- linux-2.6.15.orig/arch/arm/mach-ixp4xx/Kconfig 2006-02-14 19:20:21.000000000 +0100 +++ linux-2.6.15/arch/arm/mach-ixp4xx/Kconfig 2006-02-14 19:20:26.000000000 +0100 @@ -86,6 +86,14 @@ NAS 100d device. For more information on this platform, see http://www.nslu2-linux.org/wiki/NAS100d/HomePage +config MACH_DS101 + bool + prompt "DS101" + help + Say 'Y' here if you want your kernel to support Synology's + DiskStation DS101(j) device. For more information on this + platform see http://www.nslu2-linux.org/wiki/DS101/HomePage + # # Avila and IXDP share the same source for now. Will change in future # Index: linux-2.6.15/arch/arm/mach-ixp4xx/Makefile =================================================================== --- linux-2.6.15.orig/arch/arm/mach-ixp4xx/Makefile 2006-02-14 19:20:21.000000000 +0100 +++ linux-2.6.15/arch/arm/mach-ixp4xx/Makefile 2006-02-14 19:20:36.000000000 +0100 @@ -10,4 +10,4 @@ obj-$(CONFIG_MACH_GTWX5715) += gtwx5715-pci.o gtwx5715-setup.o obj-$(CONFIG_MACH_NSLU2) += nslu2-pci.o nslu2-setup.o nslu2-power.o obj-$(CONFIG_MACH_NAS100D) += nas100d-pci.o nas100d-setup.o nas100d-power.o - +obj-$(CONFIG_MACH_DS101) += ds101-pci.o ds101-setup.o ds101-buttons.o