Added macros to read SOM information from the I2C EEPROM.
Signed-off-by: Stefano Babic sbabic@denx.de --- board/technexion/twister/twister.c | 10 ++++-- board/teejet/mt_ventoux/mt_ventoux.c | 15 ++++++--- include/configs/tam3517-common.h | 58 +++++++++++++++++++++++++--------- 3 files changed, 60 insertions(+), 23 deletions(-)
diff --git a/board/technexion/twister/twister.c b/board/technexion/twister/twister.c index 1471559..c9eea9b 100644 --- a/board/technexion/twister/twister.c +++ b/board/technexion/twister/twister.c @@ -98,9 +98,12 @@ int board_init(void) return 0; }
+#ifndef CONFIG_SPL_BUILD int misc_init_r(void) { char *eth_addr; + struct tam3517_module_info info; + int ret;
dieid_num_r();
@@ -108,12 +111,13 @@ int misc_init_r(void) if (eth_addr) return 0;
-#ifndef CONFIG_SPL_BUILD - TAM3517_READ_MAC_FROM_EEPROM; -#endif + TAM3517_READ_EEPROM(&info, ret); + if (!ret) + TAM3517_READ_MAC_FROM_EEPROM(&info);
return 0; } +#endif
/* * Routine: set_muxconf_regs diff --git a/board/teejet/mt_ventoux/mt_ventoux.c b/board/teejet/mt_ventoux/mt_ventoux.c index 98b92f3..c516c75 100644 --- a/board/teejet/mt_ventoux/mt_ventoux.c +++ b/board/teejet/mt_ventoux/mt_ventoux.c @@ -258,21 +258,26 @@ int board_init(void) return 0; }
+#ifndef CONFIG_SPL_BUILD int misc_init_r(void) { char *eth_addr; + struct tam3517_module_info info; + int ret;
+ TAM3517_READ_EEPROM(&info, ret); dieid_num_r();
- eth_addr = getenv("ethaddr"); - if (eth_addr) + if (ret) return 0; + eth_addr = getenv("ethaddr"); + if (!eth_addr) + TAM3517_READ_MAC_FROM_EEPROM(&info);
-#ifndef CONFIG_SPL_BUILD - TAM3517_READ_MAC_FROM_EEPROM; -#endif + TAM3517_PRINT_SOM_INFO(&info); return 0; } +#endif
/* * Routine: set_muxconf_regs diff --git a/include/configs/tam3517-common.h b/include/configs/tam3517-common.h index dd7757c..a3e84a3 100644 --- a/include/configs/tam3517-common.h +++ b/include/configs/tam3517-common.h @@ -357,7 +357,6 @@ * I2C EEPROM */ #if !(defined(__KERNEL_STRICT_NAMES) || defined(__ASSEMBLY__)) - /* * The I2C EEPROM on the TAM3517 contains * mac address and production data @@ -383,24 +382,29 @@ struct tam3517_module_info { unsigned char _rev[100]; };
-#define TAM3517_READ_MAC_FROM_EEPROM \ -do { \ - struct tam3517_module_info info;\ - char buf[80], ethname[20]; \ - int i; \ +#define TAM3517_READ_EEPROM(info, ret) \ +do { \ i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); \ if (eeprom_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, \ - (void *)&info, sizeof(info))) \ - break; \ + (void *)info, sizeof(*info))) \ + ret = 1; \ + else \ + ret = 0; \ +} while (0) + +#define TAM3517_READ_MAC_FROM_EEPROM(info) \ +do { \ + char buf[80], ethname[20]; \ + int i; \ memset(buf, 0, sizeof(buf)); \ - for (i = 0 ; i < ARRAY_SIZE(info.eth_addr); i++) { \ + for (i = 0 ; i < ARRAY_SIZE((info)->eth_addr); i++) { \ sprintf(buf, "%02X:%02X:%02X:%02X:%02X:%02X", \ - info.eth_addr[i][5], \ - info.eth_addr[i][4], \ - info.eth_addr[i][3], \ - info.eth_addr[i][2], \ - info.eth_addr[i][1], \ - info.eth_addr[i][0]); \ + (info)->eth_addr[i][5], \ + (info)->eth_addr[i][4], \ + (info)->eth_addr[i][3], \ + (info)->eth_addr[i][2], \ + (info)->eth_addr[i][1], \ + (info)->eth_addr[i][0]); \ \ if (i) \ sprintf(ethname, "eth%daddr", i); \ @@ -410,6 +414,30 @@ do { \ setenv(ethname, buf); \ } \ } while (0) + +/* The following macros are taken from Technexion's documentation */ +#define TAM3517_sequence_number(info) \ + ((info)->sequence_number % 0x1000000000000LL) +#define TAM3517_week_of_year(info) (((info)->sequence_number >> 48) % 0x100) +#define TAM3517_year(info) ((info)->sequence_number >> 56) +#define TAM3517_revision_fixed(info) ((info)->revision % 0x100) +#define TAM3517_revision_major(info) (((info)->revision >> 8) % 0x100) +#define TAM3517_revision_tn(info) ((info)->revision >> 16) + +#define TAM3517_PRINT_SOM_INFO(info) \ +do { \ + printf("Vendor:%s\n", (info)->customer); \ + printf("SOM: %s\n", (info)->product); \ + printf("SeqNr: %02llu%02llu%012llu\n", \ + TAM3517_year(info), \ + TAM3517_week_of_year(info), \ + TAM3517_sequence_number(info)); \ + printf("Rev: TN%u %u.%u\n", \ + TAM3517_revision_tn(info), \ + TAM3517_revision_major(info), \ + TAM3517_revision_fixed(info)); \ +} while (0) + #endif
#endif /* __TAM3517_H */