ENGR00179013 : MX6Solo/Quad : SABREAUTO: Add Parallel NOR Support

-Added u-boot config CONFIG_CMD_WEIMNOR for MX6Solo/Quad SABREAUTO to
support WEIM NOR.
- CONFIG_FLASH_HEADER_OFFSET is 0x1000 for WEIM NOR.
-SPI NOR and WEIM NOR has pin conflicts, either one can be enabled.
- mx6q_sabreauto_config, mx6solo_sabreauto_config configured default
for SPI NOR.
-In order to enable  the read/write commands and to boot from WEIM NOR,
need to enable the CONFIG_CMD_WEIMNOR. This will disable SPI-NOR

Signed-off-by: Prabhu Sundararaj <b36876@freescale.com>

2 files changed, 127 insertions, 4 deletions

diff --git a/board/freescale/mx6q_sabreauto/lowlevel_init.S b/board/freescale/mx6q_sabreauto/lowlevel_init.S
index 882f62a..b725b66 100644
--- a/board/freescale/mx6q_sabreauto/lowlevel_init.S
+++ b/board/freescale/mx6q_sabreauto/lowlevel_init.S
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
+ * Copyright (C) 2010-2012 Freescale Semiconductor, Inc.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
@@ -143,7 +143,11 @@ d_inv_loop:
 	str r1, [r0, #CLKCTL_CCGR4]
 	ldr r1, =0xF0000C3
 	str r1, [r0, #CLKCTL_CCGR5]
+#ifdef CONFIG_CMD_WEIMNOR
+	ldr r1, =0xFFC
+#else
 	ldr r1, =0x3FC
+#endif
 	str r1, [r0, #CLKCTL_CCGR6]
 .endm
 
diff --git a/board/freescale/mx6q_sabreauto/mx6q_sabreauto.c b/board/freescale/mx6q_sabreauto/mx6q_sabreauto.c
index ac8130e..8c761c1 100644
--- a/board/freescale/mx6q_sabreauto/mx6q_sabreauto.c
+++ b/board/freescale/mx6q_sabreauto/mx6q_sabreauto.c
@@ -395,9 +395,9 @@ void setup_lvds_poweron(void)
 #endif
 #endif
 
-#ifdef CONFIG_IMX_ECSPI
 s32 spi_get_cfg(struct imx_spi_dev_t *dev)
 {
+#ifdef CONFIG_IMX_ECSPI
 	switch (dev->slave.cs) {
 	case 0:
 		/* SPI-NOR */
@@ -420,12 +420,13 @@ s32 spi_get_cfg(struct imx_spi_dev_t *dev)
 	default:
 		printf("Invalid Bus ID!\n");
 	}
-
+#endif
 	return 0;
 }
 
 void spi_io_init(struct imx_spi_dev_t *dev)
 {
+#ifdef CONFIG_IMX_ECSPI
 	u32 reg;
 
 	switch (dev->base) {
@@ -473,8 +474,8 @@ void spi_io_init(struct imx_spi_dev_t *dev)
 	default:
 		break;
 	}
-}
 #endif
+}
 
 #ifdef CONFIG_NAND_GPMI
 #if defined CONFIG_MX6Q
@@ -586,8 +587,123 @@ int get_mmc_env_devno(void)
 
 }
 #endif
+#ifdef CONFIG_CMD_WEIMNOR
 
 #if defined CONFIG_MX6Q
+iomux_v3_cfg_t nor_pads[] = {
+	MX6Q_PAD_EIM_D16__WEIM_WEIM_D_16,
+	MX6Q_PAD_EIM_D17__WEIM_WEIM_D_17,
+	MX6Q_PAD_EIM_D18__WEIM_WEIM_D_18,
+	MX6Q_PAD_EIM_D19__WEIM_WEIM_D_19,
+	MX6Q_PAD_EIM_D20__WEIM_WEIM_D_20,
+	MX6Q_PAD_EIM_D21__WEIM_WEIM_D_21,
+	MX6Q_PAD_EIM_D22__WEIM_WEIM_D_22,
+	MX6Q_PAD_EIM_D23__WEIM_WEIM_D_23,
+	MX6Q_PAD_EIM_D24__WEIM_WEIM_D_24,
+	MX6Q_PAD_EIM_D25__WEIM_WEIM_D_25,
+	MX6Q_PAD_EIM_D26__WEIM_WEIM_D_26,
+	MX6Q_PAD_EIM_D27__WEIM_WEIM_D_27,
+	MX6Q_PAD_EIM_D28__WEIM_WEIM_D_28,
+	MX6Q_PAD_EIM_D29__WEIM_WEIM_D_29,
+	MX6Q_PAD_EIM_D30__WEIM_WEIM_D_30,
+	MX6Q_PAD_EIM_D31__WEIM_WEIM_D_31,
+	MX6Q_PAD_EIM_DA0__WEIM_WEIM_DA_A_0,
+	MX6Q_PAD_EIM_DA1__WEIM_WEIM_DA_A_1,
+	MX6Q_PAD_EIM_DA2__WEIM_WEIM_DA_A_2,
+	MX6Q_PAD_EIM_DA3__WEIM_WEIM_DA_A_3,
+	MX6Q_PAD_EIM_DA4__WEIM_WEIM_DA_A_4,
+	MX6Q_PAD_EIM_DA5__WEIM_WEIM_DA_A_5,
+	MX6Q_PAD_EIM_DA6__WEIM_WEIM_DA_A_6,
+	MX6Q_PAD_EIM_DA7__WEIM_WEIM_DA_A_7,
+	MX6Q_PAD_EIM_DA8__WEIM_WEIM_DA_A_8,
+	MX6Q_PAD_EIM_DA9__WEIM_WEIM_DA_A_9,
+	MX6Q_PAD_EIM_DA10__WEIM_WEIM_DA_A_10,
+	MX6Q_PAD_EIM_DA11__WEIM_WEIM_DA_A_11,
+	MX6Q_PAD_EIM_DA12__WEIM_WEIM_DA_A_12,
+	MX6Q_PAD_EIM_DA13__WEIM_WEIM_DA_A_13,
+	MX6Q_PAD_EIM_DA14__WEIM_WEIM_DA_A_14,
+	MX6Q_PAD_EIM_DA15__WEIM_WEIM_DA_A_15,
+	MX6Q_PAD_EIM_A16__WEIM_WEIM_A_16,
+	MX6Q_PAD_EIM_A17__WEIM_WEIM_A_17,
+	MX6Q_PAD_EIM_A18__WEIM_WEIM_A_18,
+	MX6Q_PAD_EIM_A19__WEIM_WEIM_A_19,
+	MX6Q_PAD_EIM_A20__WEIM_WEIM_A_20,
+	MX6Q_PAD_EIM_A21__WEIM_WEIM_A_21,
+	MX6Q_PAD_EIM_A22__WEIM_WEIM_A_22,
+	MX6Q_PAD_EIM_A23__WEIM_WEIM_A_23,
+	MX6Q_PAD_EIM_A24__WEIM_WEIM_A_24,
+	MX6Q_PAD_EIM_OE__WEIM_WEIM_OE,
+	MX6Q_PAD_EIM_RW__WEIM_WEIM_RW,
+	MX6Q_PAD_EIM_CS0__WEIM_WEIM_CS_0
+};
+#elif defined CONFIG_MX6DL
+iomux_v3_cfg_t nor_pads[] = {
+	MX6DL_PAD_EIM_D16__WEIM_WEIM_D_16,
+	MX6DL_PAD_EIM_D17__WEIM_WEIM_D_17,
+	MX6DL_PAD_EIM_D18__WEIM_WEIM_D_18,
+	MX6DL_PAD_EIM_D19__WEIM_WEIM_D_19,
+	MX6DL_PAD_EIM_D20__WEIM_WEIM_D_20,
+	MX6DL_PAD_EIM_D21__WEIM_WEIM_D_21,
+	MX6DL_PAD_EIM_D22__WEIM_WEIM_D_22,
+	MX6DL_PAD_EIM_D23__WEIM_WEIM_D_23,
+	MX6DL_PAD_EIM_D24__WEIM_WEIM_D_24,
+	MX6DL_PAD_EIM_D25__WEIM_WEIM_D_25,
+	MX6DL_PAD_EIM_D26__WEIM_WEIM_D_26,
+	MX6DL_PAD_EIM_D27__WEIM_WEIM_D_27,
+	MX6DL_PAD_EIM_D28__WEIM_WEIM_D_28,
+	MX6DL_PAD_EIM_D29__WEIM_WEIM_D_29,
+	MX6DL_PAD_EIM_D30__WEIM_WEIM_D_30,
+	MX6DL_PAD_EIM_D31__WEIM_WEIM_D_31,
+	MX6DL_PAD_EIM_DA0__WEIM_WEIM_DA_A_0,
+	MX6DL_PAD_EIM_DA1__WEIM_WEIM_DA_A_1,
+	MX6DL_PAD_EIM_DA2__WEIM_WEIM_DA_A_2,
+	MX6DL_PAD_EIM_DA3__WEIM_WEIM_DA_A_3,
+	MX6DL_PAD_EIM_DA4__WEIM_WEIM_DA_A_4,
+	MX6DL_PAD_EIM_DA5__WEIM_WEIM_DA_A_5,
+	MX6DL_PAD_EIM_DA6__WEIM_WEIM_DA_A_6,
+	MX6DL_PAD_EIM_DA7__WEIM_WEIM_DA_A_7,
+	MX6DL_PAD_EIM_DA8__WEIM_WEIM_DA_A_8,
+	MX6DL_PAD_EIM_DA9__WEIM_WEIM_DA_A_9,
+	MX6DL_PAD_EIM_DA10__WEIM_WEIM_DA_A_10,
+	MX6DL_PAD_EIM_DA11__WEIM_WEIM_DA_A_11,
+	MX6DL_PAD_EIM_DA12__WEIM_WEIM_DA_A_12,
+	MX6DL_PAD_EIM_DA13__WEIM_WEIM_DA_A_13,
+	MX6DL_PAD_EIM_DA14__WEIM_WEIM_DA_A_14,
+	MX6DL_PAD_EIM_DA15__WEIM_WEIM_DA_A_15,
+	MX6DL_PAD_EIM_A16__WEIM_WEIM_A_16,
+	MX6DL_PAD_EIM_A17__WEIM_WEIM_A_17,
+	MX6DL_PAD_EIM_A18__WEIM_WEIM_A_18,
+	MX6DL_PAD_EIM_A19__WEIM_WEIM_A_19,
+	MX6DL_PAD_EIM_A20__WEIM_WEIM_A_20,
+	MX6DL_PAD_EIM_A21__WEIM_WEIM_A_21,
+	MX6DL_PAD_EIM_A22__WEIM_WEIM_A_22,
+	MX6DL_PAD_EIM_A23__WEIM_WEIM_A_23,
+	MX6DL_PAD_EIM_A24__WEIM_WEIM_A_24,
+	MX6DL_PAD_EIM_OE__WEIM_WEIM_OE,
+	MX6DL_PAD_EIM_RW__WEIM_WEIM_RW,
+	MX6DL_PAD_EIM_CS0__WEIM_WEIM_CS_0
+};
+#endif
+
+static void weim_norflash_cs_setup(void)
+{
+    writel(0x00000120, WEIM_BASE_ADDR + 0x090);
+    writel(0x00620181, WEIM_BASE_ADDR + 0x000);
+    writel(0x00000001, WEIM_BASE_ADDR + 0x004);
+    writel(0x0f020000, WEIM_BASE_ADDR + 0x008);
+    writel(0x0000b000, WEIM_BASE_ADDR + 0x00c);
+    writel(0x0804a240, WEIM_BASE_ADDR + 0x010);
+}
+
+static void setup_nor(void)
+{
+
+	mxc_iomux_v3_setup_multiple_pads(nor_pads,
+			ARRAY_SIZE(nor_pads));
+	weim_norflash_cs_setup();
+}
+#endif
+#if defined CONFIG_MX6Q
 iomux_v3_cfg_t usdhc1_pads[] = {
 	MX6Q_PAD_SD1_CLK__USDHC1_CLK,
 	MX6Q_PAD_SD1_CMD__USDHC1_CMD,
@@ -840,6 +956,9 @@ int board_init(void)
 
 	setup_uart();
 
+#ifdef CONFIG_CMD_WEIMNOR
+	setup_nor();
+#endif
 #ifdef CONFIG_DWC_AHSATA
 	setup_sata();
 #endif