nanoengine.c
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/*
* linux/arch/arm/mach-sa1100/nanoengine.c
*
* Bright Star Engineering's nanoEngine board init code.
*
* Copyright (C) 2010 Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br>
*
* 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/init.h>
#include <linux/kernel.h>
#include <linux/platform_data/sa11x0-serial.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/root_dev.h>
#include <asm/mach-types.h>
#include <asm/setup.h>
#include <asm/page.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/map.h>
#include <mach/hardware.h>
#include <mach/nanoengine.h>
#include <mach/irqs.h>
#include "generic.h"
/* Flash bank 0 */
static struct mtd_partition nanoengine_partitions[] = {
{
.name = "nanoEngine boot firmware and parameter table",
.size = 0x00010000, /* 32K */
.offset = 0,
.mask_flags = MTD_WRITEABLE,
}, {
.name = "kernel/initrd reserved",
.size = 0x002f0000,
.offset = 0x00010000,
.mask_flags = MTD_WRITEABLE,
}, {
.name = "experimental filesystem allocation",
.size = 0x00100000,
.offset = 0x00300000,
.mask_flags = MTD_WRITEABLE,
}
};
static struct flash_platform_data nanoengine_flash_data = {
.map_name = "jedec_probe",
.parts = nanoengine_partitions,
.nr_parts = ARRAY_SIZE(nanoengine_partitions),
};
static struct resource nanoengine_flash_resources[] = {
DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M),
DEFINE_RES_MEM(SA1100_CS1_PHYS, SZ_32M),
};
static struct map_desc nanoengine_io_desc[] __initdata = {
{
/* System Registers */
.virtual = 0xf0000000,
.pfn = __phys_to_pfn(0x10000000),
.length = 0x00100000,
.type = MT_DEVICE
}, {
/* Internal PCI Memory Read/Write */
.virtual = NANO_PCI_MEM_RW_VIRT,
.pfn = __phys_to_pfn(NANO_PCI_MEM_RW_PHYS),
.length = NANO_PCI_MEM_RW_SIZE,
.type = MT_DEVICE
}, {
/* Internal PCI Config Space */
.virtual = NANO_PCI_CONFIG_SPACE_VIRT,
.pfn = __phys_to_pfn(NANO_PCI_CONFIG_SPACE_PHYS),
.length = NANO_PCI_CONFIG_SPACE_SIZE,
.type = MT_DEVICE
}
};
static void __init nanoengine_map_io(void)
{
sa1100_map_io();
iotable_init(nanoengine_io_desc, ARRAY_SIZE(nanoengine_io_desc));
sa1100_register_uart(0, 1);
sa1100_register_uart(1, 2);
sa1100_register_uart(2, 3);
Ser1SDCR0 |= SDCR0_UART;
/* disable IRDA -- UART2 is used as a normal serial port */
Ser2UTCR4 = 0;
Ser2HSCR0 = 0;
}
static void __init nanoengine_init(void)
{
sa11x0_register_mtd(&nanoengine_flash_data, nanoengine_flash_resources,
ARRAY_SIZE(nanoengine_flash_resources));
}
MACHINE_START(NANOENGINE, "BSE nanoEngine")
.atag_offset = 0x100,
.map_io = nanoengine_map_io,
.nr_irqs = SA1100_NR_IRQS,
.init_irq = sa1100_init_irq,
.init_time = sa1100_timer_init,
.init_machine = nanoengine_init,
.init_late = sa11x0_init_late,
.restart = sa11x0_restart,
MACHINE_END