diff options
Diffstat (limited to 'board/freescale/ls1028a/ls1028a.c')
| -rw-r--r-- | board/freescale/ls1028a/ls1028a.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/board/freescale/ls1028a/ls1028a.c b/board/freescale/ls1028a/ls1028a.c index aa93534ac6..0b7504aea1 100644 --- a/board/freescale/ls1028a/ls1028a.c +++ b/board/freescale/ls1028a/ls1028a.c @@ -135,6 +135,46 @@ void detail_board_ddr_info(void) print_ddr_info(0); } +int esdhc_status_fixup(void *blob, const char *compat) +{ + void __iomem *dcfg_ccsr = (void __iomem *)DCFG_BASE; + char esdhc1_path[] = "/soc/mmc@2140000"; + char esdhc2_path[] = "/soc/mmc@2150000"; + char dspi1_path[] = "/soc/spi@2100000"; + char dspi2_path[] = "/soc/spi@2110000"; + u32 mux_sdhc1, mux_sdhc2; + u32 io = 0; + + /* + * The PMUX IO-expander for mux select is used to control + * the muxing of various onboard interfaces. + */ + + io = in_le32(dcfg_ccsr + DCFG_RCWSR12); + mux_sdhc1 = (io >> DCFG_RCWSR12_SDHC_SHIFT) & DCFG_RCWSR12_SDHC_MASK; + + /* Disable esdhc1/dspi1 if not selected. */ + if (mux_sdhc1 != 0) + do_fixup_by_path(blob, esdhc1_path, "status", "disabled", + sizeof("disabled"), 1); + if (mux_sdhc1 != 2) + do_fixup_by_path(blob, dspi1_path, "status", "disabled", + sizeof("disabled"), 1); + + io = in_le32(dcfg_ccsr + DCFG_RCWSR13); + mux_sdhc2 = (io >> DCFG_RCWSR13_SDHC_SHIFT) & DCFG_RCWSR13_SDHC_MASK; + + /* Disable esdhc2/dspi2 if not selected. */ + if (mux_sdhc2 != 0) + do_fixup_by_path(blob, esdhc2_path, "status", "disabled", + sizeof("disabled"), 1); + if (mux_sdhc2 != 2) + do_fixup_by_path(blob, dspi2_path, "status", "disabled", + sizeof("disabled"), 1); + + return 0; +} + #ifdef CONFIG_OF_BOARD_SETUP int ft_board_setup(void *blob, bd_t *bd) { |