[U-Boot] [PATCH] powerpc/p1010rdb: update mux config of p1010rdb board

[Shengzhou Liu]

On p1010rdb some signals are muxed for tdm/can/uart/flash.
If we don't set fsl_p1010mux:tdm_can to "can" or "tdm" explicitly,
defaultly we keep spi chip selection to spi-flash instead of to
tdm/slic and disable uart1 when not using flexcan, as well disable sdhc.

Signed-off-by: Shengzhou Liu <Shengzhou.Liu at freescale.com>
---
based on 'next' branch of git://git.denx.de/u-boot.git tree

 board/freescale/p1010rdb/p1010rdb.c |   56 +++++++++++++++++++++++++++-------
 1 files changed, 44 insertions(+), 12 deletions(-)

diff --git a/board/freescale/p1010rdb/p1010rdb.c b/board/freescale/p1010rdb/p1010rdb.c
index b9e66f7..fbf975d 100644
--- a/board/freescale/p1010rdb/p1010rdb.c
+++ b/board/freescale/p1010rdb/p1010rdb.c
@@ -256,6 +256,31 @@ void fdt_del_tdm(void *blob)
 	}
 }
 
+void fdt_del_sdhc(void *blob)
+{
+	int nodeoff = 0;
+
+	while ((nodeoff = fdt_node_offset_by_compatible(blob, 0,
+			"fsl,esdhc")) >= 0) {
+		fdt_del_node(blob, nodeoff);
+	}
+}
+
+void fdt_disable_uart1(void *blob)
+{
+	int nodeoff;
+
+	nodeoff = fdt_node_offset_by_compat_reg(blob, "fsl,ns16550",
+					CONFIG_SYS_NS16550_COM2);
+
+	if (nodeoff > 0) {
+		fdt_status_disabled(blob, nodeoff);
+	} else {
+		printf("WARNING unable to set status for fsl,ns16550 "
+			"uart1: %s\n", fdt_strerror(nodeoff));
+	}
+}
+
 void ft_board_setup(void *blob, bd_t *bd)
 {
 	phys_addr_t base;
@@ -285,19 +310,26 @@ void ft_board_setup(void *blob, bd_t *bd)
 		fdt_del_node_and_alias(blob, "ethernet2");
 	}
 #ifndef CONFIG_SDCARD
+	/* disable sdhc due to sdhc bug */
+	fdt_del_sdhc(blob);
 	if (hwconfig_subarg_cmp("fsl_p1010mux", "tdm_can", "can")) {
-		printf("fdt CAN");
 		fdt_del_tdm(blob);
 		fdt_del_spi_slic(blob);
-	}
-#ifndef CONFIG_SPIFLASH
-	else if (hwconfig_subarg_cmp("fsl_p1010mux", "tdm_can", "tdm")) {
-		printf("fdt TDM");
+	} else if (hwconfig_subarg_cmp("fsl_p1010mux", "tdm_can", "tdm")) {
 		fdt_del_flexcan(blob);
 		fdt_del_spi_flash(blob);
+		fdt_disable_uart1(blob);
+	} else {
+		/*
+		 * If we don't set fsl_p1010mux:tdm_can to "can" or "tdm"
+		 * explicitly, defaultly spi_cs_sel to spi-flash instead of
+		 * to tdm/slic.
+		 */
+		fdt_del_tdm(blob);
+		fdt_del_flexcan(blob);
+		fdt_disable_uart1(blob);
 	}
 #endif
-#endif
 }
 #endif
 
@@ -313,10 +345,7 @@ int misc_init_r(void)
 				MPC85xx_PMUXCR_CAN2_TDM |
 				MPC85xx_PMUXCR_CAN2_UART);
 		out_8(&cpld_data->tdm_can_sel, MUX_CPLD_CAN_UART);
-	}
-#ifndef CONFIG_SPIFLASH
-		if (hwconfig_subarg_cmp("fsl_p1010mux", "tdm_can", "tdm")) {
-			printf("TDM");
+	} else if (hwconfig_subarg_cmp("fsl_p1010mux", "tdm_can", "tdm")) {
 		clrbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_CAN2_UART |
 				MPC85xx_PMUXCR_CAN1_UART);
 		setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_CAN2_TDM |
@@ -325,8 +354,11 @@ int misc_init_r(void)
 		setbits_be32(&gur->pmuxcr2, MPC85xx_PMUXCR2_UART_TDM);
 		out_8(&cpld_data->tdm_can_sel, MUX_CPLD_TDM);
 		out_8(&cpld_data->spi_cs0_sel, MUX_CPLD_SPICS0_SLIC);
-		}
-#endif
+	} else {
+		/* defaultly spi_cs_sel to flash */
+		out_8(&cpld_data->spi_cs0_sel, MUX_CPLD_SPICS0_FLASH);
+	}
+
 	return 0;
 }
 #endif
-- 
1.7.0.4