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>
diff --git a/board/freescale/ls1028a/ls1028a.c b/board/freescale/ls1028a/ls1028a.c
index aa93534..0b7504a 100644
--- a/board/freescale/ls1028a/ls1028a.c
+++ b/board/freescale/ls1028a/ls1028a.c
@@ -135,6 +135,46 @@
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)
{