[U-Boot] [PATCH v4 07/10] armv8: ls2080aqds: Config QSPI pin mux via FPGA in NAND boot

[Yuan Yao]

From: Yuan Yao <yao.yuan at nxp.com>

In order to access QSPI flash we must asserted ISO allowing
the DUT to access the full IFC domain.
But deasserted the unused ISO will allowing maximum performance.

Signed-off-by: Yuan Yao <yao.yuan at nxp.com>
---
 arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h | 2 ++
 board/freescale/ls2080aqds/ls2080aqds.c                | 9 +++++++++
 include/configs/ls2080aqds.h                           | 6 ++++++
 3 files changed, 17 insertions(+)

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 bfff2ec..7c47cc8 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
@@ -128,6 +128,8 @@
 #define DCFG_PORSR1_RCW_SRC_NOR		0x12f00000
 #define DCFG_RCWSR13			0x130
 #define DCFG_RCWSR13_DSPI		(0 << 8)
+#define DCFG_RCWSR15			0x138
+#define DCFG_RCWSR15_IFCGRPABASE_QSPI	0x3
 
 #define DCFG_DCSR_BASE		0X700100000ULL
 #define DCFG_DCSR_PORCR1		0x000
diff --git a/board/freescale/ls2080aqds/ls2080aqds.c b/board/freescale/ls2080aqds/ls2080aqds.c
index d7acb48..80a6e93 100644
--- a/board/freescale/ls2080aqds/ls2080aqds.c
+++ b/board/freescale/ls2080aqds/ls2080aqds.c
@@ -208,6 +208,15 @@ int board_init(void)
 	else
 		config_board_mux(MUX_TYPE_SDHC);
 
+#if defined(CONFIG_NAND) && defined(CONFIG_FSL_QSPI)
+	val = in_le32(dcfg_ccsr + DCFG_RCWSR15 / 4);
+
+	if (DCFG_RCWSR15_IFCGRPABASE_QSPI == (val & (u32)0x3))
+		QIXIS_WRITE(brdcfg[9],
+			    (QIXIS_READ(brdcfg[9]) & 0xf8) |
+			     FSL_QIXIS_BRDCFG9_QSPI);
+#endif
+
 #ifdef CONFIG_ENV_IS_NOWHERE
 	gd->env_addr = (ulong)&default_environment[0];
 #endif
diff --git a/include/configs/ls2080aqds.h b/include/configs/ls2080aqds.h
index c0c2a97..bebbc88 100644
--- a/include/configs/ls2080aqds.h
+++ b/include/configs/ls2080aqds.h
@@ -304,6 +304,12 @@ unsigned long get_board_ddr_clk(void);
 #define FSL_QSPI_FLASH_SIZE		(1 << 26) /* 64MB */
 #define FSL_QSPI_FLASH_NUM		4
 #endif
+/*
+ * Verify QSPI when boot from NAND, QIXIS brdcfg9 need configure.
+ * If boot from on-board NAND, ISO1 = 1, ISO2 = 0, IBOOT = 0
+ * If boot from IFCCard NAND, ISO1 = 0, ISO2 = 0, IBOOT = 1
+ */
+#define FSL_QIXIS_BRDCFG9_QSPI		0x1
 #endif
 
 /*
-- 
2.1.0.27.g96db324