From: Jean-Jacques Hiblot Date: Thu, 1 Dec 2016 09:37:03 +0000 (+0100) Subject: ARM: DRA7: AMxx: Make sure that the SPL always reads the configuration EEPROM X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=a3a23c97b624fd580a9c5cda3f902af1fc17c801;p=project%2Fbcm63xx%2Fu-boot.git ARM: DRA7: AMxx: Make sure that the SPL always reads the configuration EEPROM The bootrom may corrupt the area of SRAM used to store the ti_common_eeprom structure. This patch makes sure that it's always read after a reset, even if a valid MAGIC number is found in the SRAM. Signed-off-by: Jean-Jacques Hiblot Reviewed-by: Tom Rini --- diff --git a/board/ti/common/board_detect.c b/board/ti/common/board_detect.c index 6e7ca9196d..a5dba94e5e 100644 --- a/board/ti/common/board_detect.c +++ b/board/ti/common/board_detect.c @@ -123,8 +123,10 @@ int __maybe_unused ti_i2c_eeprom_am_get(int bus_addr, int dev_addr) struct ti_common_eeprom *ep; ep = TI_EEPROM_DATA; +#ifndef CONFIG_SPL_BUILD if (ep->header == TI_EEPROM_HEADER_MAGIC) - goto already_read; + return 0; /* EEPROM has already been read */ +#endif /* Initialize with a known bad marker for i2c fails.. */ ep->header = TI_DEAD_EEPROM_MAGIC; @@ -157,7 +159,6 @@ int __maybe_unused ti_i2c_eeprom_am_get(int bus_addr, int dev_addr) memcpy(ep->mac_addr, am_ep.mac_addr, TI_EEPROM_HDR_NO_OF_MAC_ADDR * TI_EEPROM_HDR_ETH_ALEN); -already_read: return 0; } @@ -168,8 +169,10 @@ int __maybe_unused ti_i2c_eeprom_dra7_get(int bus_addr, int dev_addr) struct ti_common_eeprom *ep; ep = TI_EEPROM_DATA; +#ifndef CONFIG_SPL_BUILD if (ep->header == DRA7_EEPROM_HEADER_MAGIC) - goto already_read; + return 0; /* EEPROM has already been read */ +#endif /* Initialize with a known bad marker for i2c fails.. */ ep->header = TI_DEAD_EEPROM_MAGIC; @@ -202,7 +205,6 @@ int __maybe_unused ti_i2c_eeprom_dra7_get(int bus_addr, int dev_addr) strlcpy(ep->config, dra7_ep.config, TI_EEPROM_HDR_CONFIG_LEN + 1); ti_eeprom_string_cleanup(ep->config); -already_read: return 0; }