mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2025-02-20 15:06:39 +07:00
171bb2f19e
Add initial support for Mips based SoCs made by Lantiq. This series will add support for the XWAY family. The series allows booting a minimal system using a initramfs or NOR. Missing drivers and support for Amazon and GPON family will be provided in a later series. [Ralf: Remove some cargo cult programming and fixed formatting.] Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Ralph Hempel <ralph.hempel@lantiq.com> Signed-off-by: David Daney <ddaney@caviumnetworks.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2252/ Patchwork: https://patchwork.linux-mips.org/patch/2371/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
/*
|
|
* 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.
|
|
*
|
|
* Copyright (C) 2010 John Crispin <blogic@openwrt.org>
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/io.h>
|
|
#include <linux/ioport.h>
|
|
#include <asm/bootinfo.h>
|
|
|
|
#include <lantiq_soc.h>
|
|
|
|
void __init plat_mem_setup(void)
|
|
{
|
|
/* assume 16M as default incase uboot fails to pass proper ramsize */
|
|
unsigned long memsize = 16;
|
|
char **envp = (char **) KSEG1ADDR(fw_arg2);
|
|
|
|
ioport_resource.start = IOPORT_RESOURCE_START;
|
|
ioport_resource.end = IOPORT_RESOURCE_END;
|
|
iomem_resource.start = IOMEM_RESOURCE_START;
|
|
iomem_resource.end = IOMEM_RESOURCE_END;
|
|
|
|
set_io_port_base((unsigned long) KSEG1);
|
|
|
|
while (*envp) {
|
|
char *e = (char *)KSEG1ADDR(*envp);
|
|
if (!strncmp(e, "memsize=", 8)) {
|
|
e += 8;
|
|
if (strict_strtoul(e, 0, &memsize))
|
|
pr_warn("bad memsize specified\n");
|
|
}
|
|
envp++;
|
|
}
|
|
memsize *= 1024 * 1024;
|
|
add_memory_region(0x00000000, memsize, BOOT_MEM_RAM);
|
|
}
|