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| author | Stefano Babic <sbabic@denx.de> | 2012-11-23 05:19:25 +0000 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2012-12-10 08:56:38 -0700 |
| commit | 31f5b651fad3d3999d8bd62f228d940bf1b42276 (patch) | |
| tree | dd7effb6b0aff7c40cc35e4f21051e7cd74b2045 /include | |
| parent | fe2d59a123321f142552212175d3dcb1da659d8c (diff) | |
| download | u-boot-imx-31f5b651fad3d3999d8bd62f228d940bf1b42276.zip u-boot-imx-31f5b651fad3d3999d8bd62f228d940bf1b42276.tar.gz u-boot-imx-31f5b651fad3d3999d8bd62f228d940bf1b42276.tar.bz2 | |
OMAP3: TAM3517: add macros for reading eeprom
Added macros to read SOM information from the I2C
EEPROM.
Signed-off-by: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/configs/tam3517-common.h | 58 |
1 files changed, 43 insertions, 15 deletions
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 */ |