mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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17f4425d5b
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de>
120 lines
2.9 KiB
C
120 lines
2.9 KiB
C
/*
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* linux/arch/arm/mach-sa1100/nanoengine.c
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*
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* Bright Star Engineering's nanoEngine board init code.
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*
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* Copyright (C) 2010 Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/root_dev.h>
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#include <asm/mach-types.h>
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#include <asm/setup.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/flash.h>
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#include <asm/mach/map.h>
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#include <asm/mach/serial_sa1100.h>
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#include <mach/hardware.h>
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#include <mach/nanoengine.h>
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#include "generic.h"
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/* Flash bank 0 */
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static struct mtd_partition nanoengine_partitions[] = {
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{
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.name = "nanoEngine boot firmware and parameter table",
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.size = 0x00010000, /* 32K */
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.offset = 0,
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.mask_flags = MTD_WRITEABLE,
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}, {
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.name = "kernel/initrd reserved",
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.size = 0x002f0000,
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.offset = 0x00010000,
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.mask_flags = MTD_WRITEABLE,
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}, {
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.name = "experimental filesystem allocation",
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.size = 0x00100000,
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.offset = 0x00300000,
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.mask_flags = MTD_WRITEABLE,
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}
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};
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static struct flash_platform_data nanoengine_flash_data = {
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.map_name = "jedec_probe",
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.parts = nanoengine_partitions,
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.nr_parts = ARRAY_SIZE(nanoengine_partitions),
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};
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static struct resource nanoengine_flash_resources[] = {
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{
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.start = SA1100_CS0_PHYS,
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.end = SA1100_CS0_PHYS + SZ_32M - 1,
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.flags = IORESOURCE_MEM,
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}, {
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.start = SA1100_CS1_PHYS,
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.end = SA1100_CS1_PHYS + SZ_32M - 1,
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.flags = IORESOURCE_MEM,
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}
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};
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static struct map_desc nanoengine_io_desc[] __initdata = {
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{
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/* System Registers */
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.virtual = 0xf0000000,
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.pfn = __phys_to_pfn(0x10000000),
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.length = 0x00100000,
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.type = MT_DEVICE
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}, {
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/* Internal PCI Memory Read/Write */
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.virtual = NANO_PCI_MEM_RW_VIRT,
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.pfn = __phys_to_pfn(NANO_PCI_MEM_RW_PHYS),
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.length = NANO_PCI_MEM_RW_SIZE,
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.type = MT_DEVICE
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}, {
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/* Internal PCI Config Space */
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.virtual = NANO_PCI_CONFIG_SPACE_VIRT,
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.pfn = __phys_to_pfn(NANO_PCI_CONFIG_SPACE_PHYS),
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.length = NANO_PCI_CONFIG_SPACE_SIZE,
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.type = MT_DEVICE
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}
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};
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static void __init nanoengine_map_io(void)
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{
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sa1100_map_io();
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iotable_init(nanoengine_io_desc, ARRAY_SIZE(nanoengine_io_desc));
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sa1100_register_uart(0, 1);
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sa1100_register_uart(1, 2);
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sa1100_register_uart(2, 3);
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Ser1SDCR0 |= SDCR0_UART;
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/* disable IRDA -- UART2 is used as a normal serial port */
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Ser2UTCR4 = 0;
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Ser2HSCR0 = 0;
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}
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static void __init nanoengine_init(void)
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{
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sa11x0_register_mtd(&nanoengine_flash_data, nanoengine_flash_resources,
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ARRAY_SIZE(nanoengine_flash_resources));
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}
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MACHINE_START(NANOENGINE, "BSE nanoEngine")
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.atag_offset = 0x100,
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.map_io = nanoengine_map_io,
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.init_irq = sa1100_init_irq,
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.timer = &sa1100_timer,
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.init_machine = nanoengine_init,
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MACHINE_END
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