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| author | Stefano Babic <sbabic@denx.de> | 2012-08-29 01:21:59 +0000 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2012-09-04 17:05:38 -0700 |
| commit | 8103c6f0fa141f19bd6b623f3f9153d9aeb47076 (patch) | |
| tree | fe723e9b635f81d89951674f5da16936c55b2f67 /include/configs | |
| parent | 4aaf06415f795098b398f728ddb1324020ebe544 (diff) | |
| download | u-boot-imx-8103c6f0fa141f19bd6b623f3f9153d9aeb47076.zip u-boot-imx-8103c6f0fa141f19bd6b623f3f9153d9aeb47076.tar.gz u-boot-imx-8103c6f0fa141f19bd6b623f3f9153d9aeb47076.tar.bz2 | |
OMAP3: tam3517: add function to read MAC from EEPROM
The manufacturer delivers the TAM3517 SOM with 4 MAC address.
They are stored on the EEPROM of the SOM. The patch adds a
function to get their values and set the ethaddr variables.
Signed-off-by: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'include/configs')
| -rw-r--r-- | include/configs/tam3517-common.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/include/configs/tam3517-common.h b/include/configs/tam3517-common.h index 375265d..a13fd93 100644 --- a/include/configs/tam3517-common.h +++ b/include/configs/tam3517-common.h @@ -124,6 +124,7 @@ #define CONFIG_CMD_NAND /* NAND support */ #define CONFIG_CMD_PING #define CONFIG_CMD_USB +#define CONFIG_CMD_EEPROM #undef CONFIG_CMD_FLASH /* only NAND on the SOM */ #undef CONFIG_CMD_IMLS @@ -134,6 +135,9 @@ #define CONFIG_SYS_I2C_SLAVE 1 #define CONFIG_SYS_I2C_BUS 0 #define CONFIG_SYS_I2C_BUS_SELECT 1 +#define CONFIG_SYS_I2C_EEPROM_ADDR 0x50 /* base address */ +#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 1 /* bytes of address */ +#define CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW 0x07 #define CONFIG_DRIVER_OMAP34XX_I2C @@ -347,4 +351,66 @@ "fi;" \ "else echo U-Boot not downloaded..exiting;fi\0" \ + +/* + * this is common code for all TAM3517 boards. + * MAC address is stored from manufacturer in + * I2C EEPROM + */ +#if !(defined(__KERNEL_STRICT_NAMES) || defined(__ASSEMBLY__)) + +/* + * The I2C EEPROM on the TAM3517 contains + * mac address and production data + */ +struct tam3517_module_info { + char customer[48]; + char product[48]; + + /* + * bit 0~47 : sequence number + * bit 48~55 : week of year, from 0. + * bit 56~63 : year + */ + unsigned long long sequence_number; + + /* + * bit 0~7 : revision fixed + * bit 8~15 : revision major + * bit 16~31 : TNxxx + */ + unsigned int revision; + unsigned char eth_addr[4][8]; + unsigned char _rev[100]; +}; + +#define TAM3517_READ_MAC_FROM_EEPROM \ +do { \ + struct tam3517_module_info info;\ + char buf[80], ethname[20]; \ + int i; \ + i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); \ + if (eeprom_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, \ + (void *)&info, sizeof(info))) \ + break; \ + memset(buf, 0, sizeof(buf)); \ + 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]); \ + \ + if (i) \ + sprintf(ethname, "eth%daddr", i); \ + else \ + sprintf(ethname, "ethaddr"); \ + printf("Setting %s from EEPROM with %s\n", ethname, buf);\ + setenv(ethname, buf); \ + } \ +} while (0) +#endif + #endif /* __TAM3517_H */ |