From: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Date: Mon, 24 Nov 2014 09:11:58 +0000 (+0800)
Subject: board/t1024qds: update pin multiplexing
X-Git-Tag: v2015.01-rc3~1^2~7
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=355b3858471de1d3c7149a76f4ddd4ea78b9436d;p=u-boot

board/t1024qds: update pin multiplexing

Add multiplexing support among SPI flash, TDM riser card and SDXC.
it routes SPI pins to SPI flash by default.
Route SPI pins to SD slot if "adaptor=sdxc" is set in hwconfig.
Route SPI pins to TDM riser card and do fixup for dts if "pin_mux=tdm"
is set in hwconfig.

Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Signed-off-by: Xie Xiaobo <X.Xie@freescale.com>
Signed-off-by: Zhao Qiang <B45475@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
---

diff --git a/board/freescale/t102xqds/t102xqds.c b/board/freescale/t102xqds/t102xqds.c
index 97ef95a650..335711bde4 100644
--- a/board/freescale/t102xqds/t102xqds.c
+++ b/board/freescale/t102xqds/t102xqds.c
@@ -165,6 +165,8 @@ static void board_mux_setup(void)
 		/* Route QE_TDM multiplexed signals to TDM Riser slot */
 		QIXIS_WRITE(brdcfg[15], brdcfg15 | BRDCFG15_DIUSEL_TDM);
 		QIXIS_WRITE(brdcfg[13], BRDCFG13_TDM_INTERFACE << 2);
+		QIXIS_WRITE(brdcfg[5], (QIXIS_READ(brdcfg[5]) &
+			    ~BRDCFG5_SPIRTE_MASK) | BRDCFG5_SPIRTE_TDM);
 	} else if (hwconfig_arg_cmp("pin_mux", "ucc")) {
 		/* to UCC (ProfiBus) interface */
 		QIXIS_WRITE(brdcfg[15], brdcfg15 | BRDCFG15_DIUSEL_UCC);
@@ -176,6 +178,11 @@ static void board_mux_setup(void)
 		QIXIS_WRITE(brdcfg[15], brdcfg15 | BRDCFG15_LCDFM |
 			    BRDCFG15_LCDPD | BRDCFG15_DIUSEL_LCD);
 	}
+
+	if (hwconfig_arg_cmp("adaptor", "sdxc"))
+		/* Route SPI_CS multiplexed signals to SD slot */
+		QIXIS_WRITE(brdcfg[5], (QIXIS_READ(brdcfg[5]) &
+			    ~BRDCFG5_SPIRTE_MASK) | BRDCFG5_SPIRTE_SDHC);
 }
 #endif
 
@@ -265,6 +272,24 @@ int misc_init_r(void)
 	return 0;
 }
 
+void fdt_fixup_spi_mux(void *blob)
+{
+	int nodeoff = 0;
+
+	if (hwconfig_arg_cmp("pin_mux", "tdm")) {
+		while ((nodeoff = fdt_node_offset_by_compatible(blob, 0,
+			"eon,en25s64")) >= 0) {
+			fdt_del_node(blob, nodeoff);
+		}
+	} else {
+		/* remove tdm node */
+		while ((nodeoff = fdt_node_offset_by_compatible(blob, 0,
+			"maxim,ds26522")) >= 0) {
+			fdt_del_node(blob, nodeoff);
+		}
+	}
+}
+
 int ft_board_setup(void *blob, bd_t *bd)
 {
 	phys_addr_t base;
@@ -291,6 +316,7 @@ int ft_board_setup(void *blob, bd_t *bd)
 	fdt_fixup_fman_ethernet(blob);
 	fdt_fixup_board_enet(blob);
 #endif
+	fdt_fixup_spi_mux(blob);
 
 	return 0;
 }
diff --git a/board/freescale/t102xqds/t102xqds_qixis.h b/board/freescale/t102xqds/t102xqds_qixis.h
index ad83f03760..a429fb7216 100644
--- a/board/freescale/t102xqds/t102xqds_qixis.h
+++ b/board/freescale/t102xqds/t102xqds_qixis.h
@@ -17,6 +17,9 @@
 #define BRDCFG5_IMX_MASK		0xC0
 #define BRDCFG5_IMX_DIU			0x80
 
+#define BRDCFG5_SPIRTE_MASK		0x07
+#define BRDCFG5_SPIRTE_TDM		0x01
+#define BRDCFG5_SPIRTE_SDHC		0x02
 #define BRDCFG9_XFI_TX_DISABLE		0x10
 
 /* BRDCFG13[0:5] TDM configuration and setup */
@@ -35,8 +38,8 @@
 #define BRDCFG15_DIUSEL_MASK		0x03
 #define BRDCFG15_DIUSEL_HDMI		0x00
 #define BRDCFG15_DIUSEL_LCD		0x01
-#define BRDCFG15_DIUSEL_UCC		0x10
-#define BRDCFG15_DIUSEL_TDM		0x11
+#define BRDCFG15_DIUSEL_UCC		0x02
+#define BRDCFG15_DIUSEL_TDM		0x03
 
 /* SYSCLK */
 #define QIXIS_SYSCLK_66			0x0