/* * Ralink SoC common setup * * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org> * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published * by the Free Software Foundation. */ #include <linux/kernel.h> #include <linux/init.h> #include <linux/io.h> #include <linux/serial_8250.h> #include <asm/bootinfo.h> #include <asm/addrspace.h> #include <asm/mach-ralink/common.h> #include <asm/mach-ralink/machine.h> #include <ralink_soc.h> unsigned char ramips_sys_type[RAMIPS_SYS_TYPE_LEN]; const char *get_system_type(void) { return ramips_sys_type; } static void __init detect_mem_size(void) { unsigned long size; for (size = RALINK_SOC_MEM_SIZE_MIN; size < RALINK_SOC_MEM_SIZE_MAX; size <<= 1 ) { if (!memcmp(detect_mem_size, detect_mem_size + size, 1024)) break; } add_memory_region(RALINK_SOC_SDRAM_BASE, size, BOOT_MEM_RAM); } void __init ramips_early_serial_setup(int line, unsigned base, unsigned freq, unsigned irq) { struct uart_port p; int err; memset(&p, 0, sizeof(p)); p.flags = UPF_SKIP_TEST | UPF_FIXED_TYPE; p.iotype = UPIO_AU; p.uartclk = freq; p.regshift = 2; p.type = PORT_16550A; p.mapbase = base; p.membase = ioremap_nocache(p.mapbase, PAGE_SIZE); p.line = line; p.irq = irq; err = early_serial_setup(&p); if (err) printk(KERN_ERR "early serial%d registration failed %d\n", line, err); } void __init plat_mem_setup(void) { set_io_port_base(KSEG1); detect_mem_size(); ramips_soc_setup(); } __setup("board=", mips_machtype_setup); static int __init ramips_machine_setup(void) { mips_machine_setup(); return 0; } arch_initcall(ramips_machine_setup); static void __init ramips_generic_init(void) { } MIPS_MACHINE(RAMIPS_MACH_GENERIC, "Generic", "Generic Ralink board", ramips_generic_init);