diff options
| author | Igor Grinberg <grinberg@compulab.co.il> | 2014-11-03 11:32:18 +0200 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-11-06 11:04:40 -0500 |
| commit | a937fd1682625b1f87b555e2af9117fcb2999d7c (patch) | |
| tree | 6f39f972c9387f7af48fde11ecc941829debba62 /board/compulab/common/eeprom.c | |
| parent | 52d848695c36d2b6ce688d1403653653e82583b4 (diff) | |
| download | u-boot-imx-a937fd1682625b1f87b555e2af9117fcb2999d7c.zip u-boot-imx-a937fd1682625b1f87b555e2af9117fcb2999d7c.tar.gz u-boot-imx-a937fd1682625b1f87b555e2af9117fcb2999d7c.tar.bz2 | |
compulab: refactor board revision handling
Move board revision handling code to a common location
for further reuse.
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Reviewed-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'board/compulab/common/eeprom.c')
| -rw-r--r-- | board/compulab/common/eeprom.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/board/compulab/common/eeprom.c b/board/compulab/common/eeprom.c index 2df3ada..a45e7be 100644 --- a/board/compulab/common/eeprom.c +++ b/board/compulab/common/eeprom.c @@ -109,23 +109,27 @@ int cl_eeprom_read_mac_addr(uchar *buf) return cl_eeprom_read(offset, buf, 6); } +static u32 board_rev; + /* * Routine: cl_eeprom_get_board_rev * Description: read system revision from eeprom */ u32 cl_eeprom_get_board_rev(void) { - u32 rev = 0; char str[5]; /* Legacy representation can contain at most 4 digits */ uint offset = BOARD_REV_OFFSET_LEGACY; + if (board_rev) + return board_rev; + if (cl_eeprom_setup_layout()) return 0; if (cl_eeprom_layout != LAYOUT_LEGACY) offset = BOARD_REV_OFFSET; - if (cl_eeprom_read(offset, (uchar *)&rev, BOARD_REV_SIZE)) + if (cl_eeprom_read(offset, (uchar *)&board_rev, BOARD_REV_SIZE)) return 0; /* @@ -133,9 +137,9 @@ u32 cl_eeprom_get_board_rev(void) * representation. i.e. for rev 1.00: 0x100 --> 0x64 */ if (cl_eeprom_layout == LAYOUT_LEGACY) { - sprintf(str, "%x", rev); - rev = simple_strtoul(str, NULL, 10); + sprintf(str, "%x", board_rev); + board_rev = simple_strtoul(str, NULL, 10); } - return rev; + return board_rev; }; |