mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-13 17:36:46 +07:00
75 lines
1.8 KiB
C
75 lines
1.8 KiB
C
|
/*
|
||
|
|
* Embedded Planet EP405 with PlanetCore firmware
|
||
|
|
*
|
||
|
|
* (c) Benjamin Herrenschmidt <benh@kernel.crashing.org>, IBM Corp,\
|
||
|
|
*
|
||
|
|
* Based on ep88xc.c by
|
||
|
|
*
|
||
|
|
* Scott Wood <scottwood@freescale.com>
|
||
|
|
*
|
||
|
|
* Copyright (c) 2007 Freescale Semiconductor, Inc.
|
||
|
|
*
|
||
|
|
* 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 "ops.h"
|
||
|
|
#include "stdio.h"
|
||
|
|
#include "planetcore.h"
|
||
|
|
#include "dcr.h"
|
||
|
|
#include "4xx.h"
|
||
|
|
#include "io.h"
|
||
|
|
|
||
|
|
static char *table;
|
||
|
|
static u64 mem_size;
|
||
|
|
|
||
|
|
static void platform_fixups(void)
|
||
|
|
{
|
||
|
|
u64 val;
|
||
|
|
void *nvrtc;
|
||
|
|
|
||
|
|
dt_fixup_memory(0, mem_size);
|
||
|
|
planetcore_set_mac_addrs(table);
|
||
|
|
|
||
|
|
if (!planetcore_get_decimal(table, PLANETCORE_KEY_CRYSTAL_HZ, &val)) {
|
||
|
|
printf("No PlanetCore crystal frequency key.\r\n");
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
ibm405gp_fixup_clocks(val, 0xa8c000);
|
||
|
|
ibm4xx_quiesce_eth((u32 *)0xef600800, NULL);
|
||
|
|
ibm4xx_fixup_ebc_ranges("/plb/ebc");
|
||
|
|
|
||
|
|
if (!planetcore_get_decimal(table, PLANETCORE_KEY_KB_NVRAM, &val)) {
|
||
|
|
printf("No PlanetCore NVRAM size key.\r\n");
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
nvrtc = finddevice("/plb/ebc/nvrtc@4,200000");
|
||
|
|
if (nvrtc != NULL) {
|
||
|
|
u32 reg[3] = { 4, 0x200000, 0};
|
||
|
|
getprop(nvrtc, "reg", reg, 3);
|
||
|
|
reg[2] = (val << 10) & 0xffffffff;
|
||
|
|
setprop(nvrtc, "reg", reg, 3);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
|
||
|
|
unsigned long r6, unsigned long r7)
|
||
|
|
{
|
||
|
|
table = (char *)r3;
|
||
|
|
planetcore_prepare_table(table);
|
||
|
|
|
||
|
|
if (!planetcore_get_decimal(table, PLANETCORE_KEY_MB_RAM, &mem_size))
|
||
|
|
return;
|
||
|
|
|
||
|
|
mem_size *= 1024 * 1024;
|
||
|
|
simple_alloc_init(_end, mem_size - (unsigned long)_end, 32, 64);
|
||
|
|
|
||
|
|
fdt_init(_dtb_start);
|
||
|
|
|
||
|
|
planetcore_set_stdout_path(table);
|
||
|
|
|
||
|
|
serial_console_init();
|
||
|
|
platform_ops.fixups = platform_fixups;
|
||
|
|
}
|