/* * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 2006, 07 MIPS Technologies, Inc. * written by Ralf Baechle (ralf@linux-mips.org) * written by Ralf Baechle <ralf@linux-mips.org> * * Copyright (C) 2008 Wind River Systems, Inc. * updated by Tiejun Chen <tiejun.chen@windriver.com> * * 1. Probe driver for the Malta's UART ports: * * o 2 ports in the SMC SuperIO * o 1 port in the CBUS UART, a discrete 16550 which normally is only used * for bringups. * * We don't use 8250_platform.c on Malta as it would result in the CBUS * UART becoming ttyS0. * * 2. Register RTC-CMOS platform device on Malta. */ #include <linux/init.h> #include <linux/serial_8250.h> #include <linux/mc146818rtc.h> #include <linux/module.h> #include <linux/mtd/partitions.h> #include <linux/mtd/physmap.h> #include <linux/platform_device.h> #include <mtd/mtd-abi.h> #define SMC_PORT(base, int) \ { \ .iobase = base, \ .irq = int, \ .uartclk = 1843200, \ .iotype = UPIO_PORT, \ .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, \ .regshift = 0, \ } #define CBUS_UART_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP) static struct plat_serial8250_port uart8250_data[] = { SMC_PORT(0x3F8, 4), SMC_PORT(0x2F8, 3), { .mapbase = 0x1f000900, /* The CBUS UART */ .irq = MIPS_CPU_IRQ_BASE + 2, .uartclk = 3686400, /* Twice the usual clk! */ .iotype = UPIO_MEM32, .flags = CBUS_UART_FLAGS, .regshift = 3, }, { }, }; static struct platform_device malta_uart8250_device = { .name = "serial8250", .id = PLAT8250_DEV_PLATFORM, .dev = { .platform_data = uart8250_data, }, }; struct resource malta_rtc_resources[] = { { .start = RTC_PORT(0), .end = RTC_PORT(7), .flags = IORESOURCE_IO, }, { .start = RTC_IRQ, .end = RTC_IRQ, .flags = IORESOURCE_IRQ, } }; static struct platform_device malta_rtc_device = { .name = "rtc_cmos", .id = -1, .resource = malta_rtc_resources, .num_resources = ARRAY_SIZE(malta_rtc_resources), }; static struct mtd_partition malta_mtd_partitions[] = { { .name = "YAMON", .offset = 0x0, .size = 0x100000, .mask_flags = MTD_WRITEABLE }, { .name = "User FS", .offset = 0x100000, .size = 0x2e0000 }, { .name = "Board Config", .offset = 0x3e0000, .size = 0x020000, .mask_flags = MTD_WRITEABLE } }; static struct physmap_flash_data malta_flash_data = { .width = 4, .nr_parts = ARRAY_SIZE(malta_mtd_partitions), .parts = malta_mtd_partitions }; static struct resource malta_flash_resource = { .start = 0x1e000000, .end = 0x1e3fffff, .flags = IORESOURCE_MEM }; static struct platform_device malta_flash_device = { .name = "physmap-flash", .id = 0, .dev = { .platform_data = &malta_flash_data, }, .num_resources = 1, .resource = &malta_flash_resource, }; static struct platform_device *malta_devices[] __initdata = { &malta_uart8250_device, &malta_rtc_device, &malta_flash_device, }; static int __init malta_add_devices(void) { int err; err = platform_add_devices(malta_devices, ARRAY_SIZE(malta_devices)); if (err) return err; /* * Set RTC to BCD mode to support current alarm code. */ CMOS_WRITE(CMOS_READ(RTC_CONTROL) & ~RTC_DM_BINARY, RTC_CONTROL); return 0; } device_initcall(malta_add_devices);