[U-Boot-Users] [PATCH 2/2] 86xx: mpc8610_hpcd: add support for NAND

[Anton Vorontsov]

This patch adds support for NAND on MPC8610HPCD target. We're using BAT7
and LAW4 entries for 4MB NAND mapping.

MPC8610HPCD has four NAND chips in one package, bases as follows:
- 0xe8400000
- 0xe8440000
- 0xe8480000
- 0xe84c0000

Signed-off-by: Anton Vorontsov <avorontsov at ru.mvista.com>
---
 board/freescale/mpc8610hpcd/law.c |    2 +-
 include/configs/MPC8610HPCD.h     |   37 +++++++++++++++++++++++++++++++------
 2 files changed, 32 insertions(+), 7 deletions(-)

diff --git a/board/freescale/mpc8610hpcd/law.c b/board/freescale/mpc8610hpcd/law.c
index b4d222d..072a997 100644
--- a/board/freescale/mpc8610hpcd/law.c
+++ b/board/freescale/mpc8610hpcd/law.c
@@ -33,7 +33,7 @@ struct law_entry law_table[] = {
 #endif
 	SET_LAW_ENTRY(2, CFG_PCIE1_MEM_BASE, LAW_SIZE_256M, LAW_TRGT_IF_PCIE_1),
 	SET_LAW_ENTRY(3, CFG_PCIE2_MEM_BASE, LAW_SIZE_256M, LAW_TRGT_IF_PCIE_2),
-	SET_LAW_ENTRY(4, PIXIS_BASE, LAW_SIZE_2M, LAW_TRGT_IF_LBC),
+	SET_LAW_ENTRY(4, PIXIS_BASE, LAW_SIZE_8M, LAW_TRGT_IF_LBC), /* + NAND */
 	SET_LAW_ENTRY(5, CFG_PCIE1_IO_PHYS, LAW_SIZE_1M, LAW_TRGT_IF_PCIE_1),
 	SET_LAW_ENTRY(6, CFG_PCIE2_IO_PHYS, LAW_SIZE_1M, LAW_TRGT_IF_PCIE_2),
 	SET_LAW_ENTRY(7, CFG_FLASH_BASE, LAW_SIZE_256M, LAW_TRGT_IF_LBC),
diff --git a/include/configs/MPC8610HPCD.h b/include/configs/MPC8610HPCD.h
index 15ff0ea..3299942 100644
--- a/include/configs/MPC8610HPCD.h
+++ b/include/configs/MPC8610HPCD.h
@@ -158,10 +158,34 @@
 
 #define CFG_BR1_PRELIM		0xf0001001 /* port size 16bit */
 #define CFG_OR1_PRELIM		0xf8006e65 /* 128MB Promjet */
-#if 0 /* TODO */
-#define CFG_BR2_PRELIM		0xf0000000
-#define CFG_OR2_PRELIM		0xf0000000 /* 256MB NAND Flash - bank 1 */
-#endif
+
+/*
+ * NAND Flash on Local Bus
+ */
+#define CFG_NAND_BASE		0xe8400000
+#define CFG_NAND_BR_PRELIM(idx)	((CFG_NAND_BASE + 0x40000 * (idx)) | \
+				 (2 << BR_DECC_SHIFT) |	/* Use HW ECC */ \
+				 BR_PS_8 |		/* Port Size 8 bit */ \
+				 BR_MS_FCM |		/* MSEL FCM */ \
+				 BR_V)			/* valid */
+
+#define CFG_NAND_OR_PRELIM	(0xFFFF8000 |		/* length 32K */ \
+				 OR_FCM_CSCT | \
+				 OR_FCM_CST | \
+				 OR_FCM_CHT | \
+				 OR_FCM_SCY_1 | \
+				 OR_FCM_TRLX | \
+				 OR_FCM_EHTR)
+
+#define CFG_BR2_PRELIM		CFG_NAND_BR_PRELIM(0)
+#define CFG_OR2_PRELIM		CFG_NAND_OR_PRELIM
+#define CFG_BR4_PRELIM		CFG_NAND_BR_PRELIM(1)
+#define CFG_OR4_PRELIM		CFG_NAND_OR_PRELIM
+#define CFG_BR5_PRELIM		CFG_NAND_BR_PRELIM(2)
+#define CFG_OR5_PRELIM		CFG_NAND_OR_PRELIM
+#define CFG_BR6_PRELIM		CFG_NAND_BR_PRELIM(3)
+#define CFG_OR6_PRELIM		CFG_NAND_OR_PRELIM
+
 #define CFG_BR3_PRELIM		0xe8000801 /* port size 8bit */
 #define CFG_OR3_PRELIM		0xfff06ff7 /* 1MB PIXIS area*/
 
@@ -428,12 +452,13 @@
 #define CFG_IBAT6U	CFG_DBAT6U
 
 /*
- * BAT7		4M	Cache-inhibited, guarded
+ * BAT7		8M	Cache-inhibited, guarded
  * 0xe800_0000	4M	PIXIS
+ * 0xe840_0000	4M	NAND
  */
 #define CFG_DBAT7L	(PIXIS_BASE | BATL_PP_RW | BATL_CACHEINHIBIT \
 			| BATL_GUARDEDSTORAGE)
-#define CFG_DBAT7U	(PIXIS_BASE | BATU_BL_1M | BATU_VS | BATU_VP)
+#define CFG_DBAT7U	(PIXIS_BASE | BATU_BL_8M | BATU_VS | BATU_VP)
 #define CFG_IBAT7L	(PIXIS_BASE | BATL_PP_RW | BATL_CACHEINHIBIT)
 #define CFG_IBAT7U	CFG_DBAT7U
 
-- 
1.5.5.1