diff options
Diffstat (limited to 'target/linux/rb1xx-2.6/files/arch/mips/adm5120/adm5120_info.c')
| -rw-r--r-- | target/linux/rb1xx-2.6/files/arch/mips/adm5120/adm5120_info.c | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/target/linux/rb1xx-2.6/files/arch/mips/adm5120/adm5120_info.c b/target/linux/rb1xx-2.6/files/arch/mips/adm5120/adm5120_info.c deleted file mode 100644 index 18e267479..000000000 --- a/target/linux/rb1xx-2.6/files/arch/mips/adm5120/adm5120_info.c +++ /dev/null @@ -1,186 +0,0 @@ -/* - * $Id$ - * - * Copyright (C) 2007 OpenWrt.org - * 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 - * option) any later version. - */ - -#include <linux/types.h> -#include <linux/autoconf.h> -#include <linux/kernel.h> -#include <linux/init.h> - -#include <asm/bootinfo.h> -#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, - .boot_loader = BOOT_LOADER_UNKNOWN, - .board_type = BOARD_TYPE_UNKNOWN -}; - -static char *boot_loader_names[BOOT_LOADER_LAST+1] = { - [BOOT_LOADER_UNKNOWN] = "Unknown", - [BOOT_LOADER_CFE] = "CFE", - [BOOT_LOADER_UBOOT] = "U-Boot", - [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 - */ -static int __init detect_cfe(void) -{ - /* - * This method only works, when we are booted directly from the CFE. - */ - uint32_t cfe_handle = (uint32_t) fw_arg0; - uint32_t cfe_a1_val = (uint32_t) fw_arg1; - uint32_t cfe_entry = (uint32_t) fw_arg2; - uint32_t cfe_seal = (uint32_t) fw_arg3; - - /* Check for CFE by finding the CFE magic number */ - if (cfe_seal != CFE_EPTSEAL) { - /* 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; - } - - return 1; -} - -static int __init detect_uboot(void) -{ - /* FIXME: not yet implemented */ - return 0; -} - -static int __init detect_myloader(void) -{ - struct mylo_system_params *sysp; - struct mylo_board_params *boardp; - struct mylo_partition_table *parts; - - sysp = (struct mylo_system_params *)(MYLO_MIPS_SYS_PARAMS); - boardp = (struct mylo_board_params *)(MYLO_MIPS_BOARD_PARAMS); - parts = (struct mylo_partition_table *)(MYLO_MIPS_PARTITIONS); - - /* Check for some magic numbers */ - if ((sysp->magic != MYLO_MAGIC_SYS_PARAMS) || - (boardp->magic != MYLO_MAGIC_BOARD_PARAMS) || - (parts->magic != MYLO_MAGIC_PARTITIONS)) - return 0; - - return 1; -} - -static int __init detect_routerboot(void) -{ - /* FIXME: not yet implemented */ - return 0; -} - -static int __init detect_bootloader(void) -{ - if (detect_cfe()) - return BOOT_LOADER_CFE; - - if (detect_uboot()) - return BOOT_LOADER_UBOOT; - - if (detect_myloader()) - return BOOT_LOADER_MYLOADER; - - if (detect_routerboot()) - return BOOT_LOADER_ROUTERBOOT; - - return BOOT_LOADER_UNKNOWN; -} - -/* - * Board detection - */ -static void __init detect_board_type(void) -{ - /* FIXME: not yet implemented */ -} - -void __init adm5120_info_show(void) -{ - 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(); -} |