qi-hardware/openwrt-xburst
1
0
Fork 0
mirror of git://projects.qi-hardware.com/openwrt-xburst.git synced 2025-04-21 12:27:27 +03:00
Code Activity

Add definitions, add settings detection for SoCs

Browse Source 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@6759 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
florian
2007-03-29 22:21:22 +00:00
parent f69503b99e
commit 8194aa23ac
4 changed files with 230 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

80
target/linux/adm5120-2.6/files/arch/mips/adm5120/adm5120_info.c
View File

@@ -1,7 +1,9 @@
/*
* $Id$
*
* Copyright (C) 2007 OpenWrt.org
* Copyright (C) Gabor Juhos
*
* Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
@@ -17,12 +19,13 @@
#include <asm/addrspace.h>
#include <adm5120_info.h>
#include <adm5120_defs.h>
#include <adm5120_switch.h>
#include <myloader.h>
/* boot loaders specific definitions */
#define CFE_EPTSEAL 0x43464531 /* CFE1 is the magic number to recognize CFE from other bootloaders */
struct adm5120_info adm5120_info = {
.cpu_speed = CPU_SPEED_175,
.cpu_package = CPU_PACKAGE_PQFP,
@@ -37,6 +40,42 @@ static char *boot_loader_names[BOOT_LOADER_LAST+1] = {
[BOOT_LOADER_MYLOADER] = "MyLoader"
};
/*
* CPU settings detection
*/
#define CODE_GET_PC(c) ((c) & CODE_PC_MASK)
#define CODE_GET_REV(c) (((c) >> CODE_REV_SHIFT) & CODE_REV_MASK)
#define CODE_GET_PK(c) (((c) >> CODE_PK_SHIFT) & CODE_PK_MASK)
#define CODE_GET_CLKS(c) (((c) >> CODE_CLKS_SHIFT) & CODE_CLKS_MASK)
#define CODE_GET_NAB(c) (((c) & CODE_NAB) != 0)
static void __init detect_cpu_info(void)
{
uint32_t *reg;
uint32_t code;
uint32_t clks;
reg = (uint32_t *)KSEG1ADDR(ADM5120_SWITCH_BASE+SWITCH_REG_CODE);
code = *reg;
clks = CODE_GET_CLKS(code);
adm5120_info.product_code = CODE_GET_PC(code);
adm5120_info.revision = CODE_GET_REV(code);
adm5120_info.cpu_speed = CPU_SPEED_175;
if (clks & 1)
adm5120_info.cpu_speed += 25000000;
if (clks & 2)
adm5120_info.cpu_speed += 50000000;
adm5120_info.cpu_package = (CODE_GET_PK(code) == CODE_PK_BGA) ?
CPU_PACKAGE_BGA : CPU_PACKAGE_PQFP;
adm5120_info.nand_boot = CODE_GET_NAB(code);
}
/*
* Boot loader detection routines
*/
@@ -55,12 +94,12 @@ static int __init detect_cfe(void)
/* We are not booted from CFE */
return 0;
}
/* cfe_a1_val must be 0, because only one CPU present in the ADM5120 SoC */
if (cfe_a1_val != 0) {
return 0;
}
/* The cfe_handle, and the cfe_entry must be kernel mode addresses */
if ((cfe_handle < KSEG0) || (cfe_entry < KSEG0)) {
return 0;
@@ -86,7 +125,7 @@ static int __init detect_myloader(void)
parts = (struct mylo_partition_table *)(MYLO_MIPS_PARTITIONS);
/* Check for some magic numbers */
if ((sysp->magic != MYLO_MAGIC_SYS_PARAMS) ||
if ((sysp->magic != MYLO_MAGIC_SYS_PARAMS) ||
(boardp->magic != MYLO_MAGIC_BOARD_PARAMS) ||
(parts->magic != MYLO_MAGIC_PARTITIONS))
return 0;
@@ -98,24 +137,41 @@ static int __init detect_bootloader(void)
{
if (detect_cfe())
return BOOT_LOADER_CFE;
if (detect_uboot())
if (detect_uboot())
return BOOT_LOADER_UBOOT;
if (detect_myloader())
return BOOT_LOADER_MYLOADER;
return BOOT_LOADER_UNKNOWN;
}
/*
* Board detection
*/
static void __init detect_board_type(void)
{
/* FIXME: not yet implemented */
}
void __init adm5120_info_show(void)
{
printk("adm5120: boot loader is %s\n", boot_loader_names[adm5120_info.boot_loader]);
printk("ADM%04X%s revision %d, running at %ldMHz\n",
adm5120_info.product_code,
(adm5120_info.cpu_package == CPU_PACKAGE_BGA) ? "" : "P",
adm5120_info.revision,
(adm5120_info.cpu_speed / 1000000)
);
printk("Boot loader is: %s\n", boot_loader_names[adm5120_info.boot_loader]);
printk("Booted from : %s flash\n", adm5120_info.nand_boot ? "NAND" : "NOR");
}
void __init adm5120_info_init(void)
{
detect_cpu_info();
adm5120_info.boot_loader = detect_bootloader();
detect_board_type();
adm5120_info_show();
}