[U-Boot] board: freescale: ls2080ardb: Enable SD interface for RevF board

Submitted by Priyanka Jain on April 21, 2017, 9 a.m.

Details

Message ID 1492765253-19417-1-git-send-email-priyanka.jain@nxp.com
State Superseded
Headers show

Commit Message

Priyanka Jain April 21, 2017, 9 a.m.
LS2080ARDB/LS2088ARDB RevF board has smart voltage translator
which needs to be programmed to enable high speed SD interface
by setting GPIO4_10 output to zero

Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
Signed-off-by: Santan Kumar <santan.kumar@nxp.com>
---
 .../include/asm/arch-fsl-layerscape/immap_lsch3.h  |    3 +++
 board/freescale/ls2080ardb/ls2080ardb.c            |   17 +++++++++++++++++
 2 files changed, 20 insertions(+), 0 deletions(-)

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diff --git a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
index 80c421f..9fdd6a0 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
@@ -45,6 +45,9 @@ 
 #define I2C2_BASE_ADDR				(CONFIG_SYS_IMMR + 0x01010000)
 #define I2C3_BASE_ADDR				(CONFIG_SYS_IMMR + 0x01020000)
 #define I2C4_BASE_ADDR				(CONFIG_SYS_IMMR + 0x01030000)
+#define GPIO4_BASE_ADDR				(CONFIG_SYS_IMMR + 0x01330000)
+#define GPIO4_GPDIR_ADDR			(GPIO4_BASE_ADDR + 0x0)
+#define GPIO4_GPDAT_ADDR			(GPIO4_BASE_ADDR + 0x8)
 
 #define CONFIG_SYS_XHCI_USB1_ADDR		(CONFIG_SYS_IMMR + 0x02100000)
 #define CONFIG_SYS_XHCI_USB2_ADDR		(CONFIG_SYS_IMMR + 0x02110000)
diff --git a/board/freescale/ls2080ardb/ls2080ardb.c b/board/freescale/ls2080ardb/ls2080ardb.c
index 1bd555b..51012e4 100644
--- a/board/freescale/ls2080ardb/ls2080ardb.c
+++ b/board/freescale/ls2080ardb/ls2080ardb.c
@@ -214,6 +214,23 @@  int board_early_init_f(void)
 
 int misc_init_r(void)
 {
+#ifdef CONFIG_FSL_QIXIS
+	u8 sw;
+
+	sw = QIXIS_READ(arch);
+	/*
+	 * LS2080ARDB/LS2088ARDB RevF board has smart voltage translator
+	 * which needs to be programmed to enable high speed SD interface
+	 * by setting GPIO4_10 output to zero
+	 */
+	if ((sw & 0xf) == 0x5) {
+		out_le32(GPIO4_GPDIR_ADDR, (1 << 21 |
+					    in_le32(GPIO4_GPDIR_ADDR)));
+		out_le32(GPIO4_GPDAT_ADDR, (~(1 << 21) &
+					    in_le32(GPIO4_GPDAT_ADDR)));
+	}
+#endif
+
 	if (hwconfig("sdhc"))
 		config_board_mux(MUX_TYPE_SDHC);