diff options
Diffstat (limited to 'qemu/roms/u-boot/board/kup/common/load_sernum_ethaddr.c')
-rw-r--r-- | qemu/roms/u-boot/board/kup/common/load_sernum_ethaddr.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/kup/common/load_sernum_ethaddr.c b/qemu/roms/u-boot/board/kup/common/load_sernum_ethaddr.c new file mode 100644 index 000000000..20fe799cd --- /dev/null +++ b/qemu/roms/u-boot/board/kup/common/load_sernum_ethaddr.c @@ -0,0 +1,78 @@ +/* + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <mpc8xx.h> + +/*----------------------------------------------------------------------- + * Process Hardware Information Block: + * + * If we boot on a system fresh from factory, check if the Hardware + * Information Block exists and save the information it contains. + * + * The KUP Hardware Information Block is defined as + * follows: + * - located in first flash bank + * - starts at offset CONFIG_SYS_HWINFO_OFFSET + * - size CONFIG_SYS_HWINFO_SIZE + * + * Internal structure: + * - sequence of ASCII character lines + * - fields separated by <CR><LF> + * - last field terminated by NUL character (0x00) + * + * Fields in Hardware Information Block: + * 1) Module Type + * 2) MAC Address + * 3) .... + */ + + +#define ETHADDR_TOKEN "ethaddr=" +#define LCD_TOKEN "lcd=" + +void load_sernum_ethaddr (void) +{ + unsigned char *hwi; + char *var; + unsigned char hwi_stack[CONFIG_SYS_HWINFO_SIZE]; + char *p; + + hwi = (unsigned char *) (CONFIG_SYS_FLASH_BASE + CONFIG_SYS_HWINFO_OFFSET); + if (*((unsigned long *) hwi) != (unsigned long) CONFIG_SYS_HWINFO_MAGIC) { + printf ("HardwareInfo not found!\n"); + return; + } + memcpy (hwi_stack, hwi, CONFIG_SYS_HWINFO_SIZE); + + /* + ** ethaddr + */ + var = strstr ((char *)hwi_stack, ETHADDR_TOKEN); + if (var) { + var += sizeof (ETHADDR_TOKEN) - 1; + p = strchr (var, '\r'); + if ((unsigned char *)p < hwi + CONFIG_SYS_HWINFO_SIZE) { + *p = '\0'; + setenv ("ethaddr", var); + *p = '\r'; + } + } + /* + ** lcd + */ + var = strstr ((char *)hwi_stack, LCD_TOKEN); + if (var) { + var += sizeof (LCD_TOKEN) - 1; + p = strchr (var, '\r'); + if ((unsigned char *)p < hwi + CONFIG_SYS_HWINFO_SIZE) { + *p = '\0'; + setenv ("lcd", var); + *p = '\r'; + } + } +} |