diff options
| author | Yinbo Zhu | 2020-04-14 17:24:48 +0800 |
|---|---|---|
| committer | Priyanka Jain | 2020-04-20 13:35:11 +0530 |
| commit | 316fc6ff762b44044ef164f51e042cb8a90dc147 (patch) | |
| tree | 2efee8fdfd4cb13ec3305c654c467fab703a5bfb /board/freescale | |
| parent | 3460a6bba1dfeb48e6006a73c1aa9a6ba53a526b (diff) | |
armv8: ls1028a: define esdhc_status_fixup
This patch is to define esdhc_status_fixup function for ls1028a to disable
SDHC1/SDHC2 status in device tree node if not selected.
Signed-off-by: Yinbo Zhu <yinbo.zhu@nxp.com>
Signed-off-by: Xiaowei Bao <xiaowei.bao@nxp.com>
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
Diffstat (limited to 'board/freescale')
| -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 aa93534ac68..0b7504aea12 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) { |