diff options
| -rw-r--r-- | board/freescale/ls1021aqds/ls1021aqds.c | 32 |
1 files changed, 19 insertions, 13 deletions
diff --git a/board/freescale/ls1021aqds/ls1021aqds.c b/board/freescale/ls1021aqds/ls1021aqds.c index d7813d9..bf22fce 100644 --- a/board/freescale/ls1021aqds/ls1021aqds.c +++ b/board/freescale/ls1021aqds/ls1021aqds.c @@ -102,8 +102,27 @@ unsigned long get_board_ddr_clk(void) return 66666666; } +int select_i2c_ch_pca9547(u8 ch) +{ + int ret; + + ret = i2c_write(I2C_MUX_PCA_ADDR_PRI, 0, 1, &ch, 1); + if (ret) { + puts("PCA: failed to select proper channel\n"); + return ret; + } + + return 0; +} + int dram_init(void) { + /* + * When resuming from deep sleep, the I2C channel may not be + * in the default channel. So, switch to the default channel + * before accessing DDR SPD. + */ + select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT); gd->ram_size = initdram(0); return 0; @@ -122,19 +141,6 @@ int board_mmc_init(bd_t *bis) } #endif -int select_i2c_ch_pca9547(u8 ch) -{ - int ret; - - ret = i2c_write(I2C_MUX_PCA_ADDR_PRI, 0, 1, &ch, 1); - if (ret) { - puts("PCA: failed to select proper channel\n"); - return ret; - } - - return 0; -} - int board_early_init_f(void) { struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR; |