[U-Boot-Users] [PATCH 04/08] Socrates: Added FPGA mapping. LAWs and TLBs cleanup.

[Wolfgang Denk]

From: Sergei Poselenov <sposelenov at emcraft.com>

Signed-off-by: Sergei Poselenov <sposelenov at emcraft.com>
---
 board/socrates/law.c       |   15 ++++++++-------
 board/socrates/socrates.c  |    8 +++++++-
 board/socrates/tlb.c       |   25 ++++++++-----------------
 include/configs/socrates.h |    9 ++++-----
 4 files changed, 27 insertions(+), 30 deletions(-)

diff --git a/board/socrates/law.c b/board/socrates/law.c
index 5f4b8ca..ab9a994 100644
--- a/board/socrates/law.c
+++ b/board/socrates/law.c
@@ -33,13 +33,12 @@
 /*
  * LAW(Local Access Window) configuration:
  *
- * 0x0000_0000	   0x7fff_ffff	   DDR			   2G
+ * 0x0000_0000	   0x2fff_ffff	   DDR			   512M
  * 0x8000_0000	   0x9fff_ffff	   PCI1 MEM		   512M
- * 0xc000_0000	   0xdfff_ffff	   RapidIO		   512M
- * 0xe000_0000	   0xe000_ffff	   CCSR			   1M
+ * 0xc000_0000	   0xc00f_ffff	   FPGA			   1M
+ * 0xe000_0000	   0xe00f_ffff	   CCSR			   1M (mapped by CCSRBAR)
  * 0xe200_0000	   0xe2ff_ffff	   PCI1 IO		   16M
- * 0xf800_0000	   0xf80f_ffff	   BCSR			   1M
- * 0xfe00_0000	   0xffff_ffff	   FLASH (boot bank)	   32M
+ * 0xfc00_0000	   0xffff_ffff	   FLASH		   64M
  *
  * Notes:
  *    CCSRBAR and L2-as-SRAM don't need a configured Local Access Window.
@@ -49,9 +48,11 @@
 struct law_entry law_table[] = {
 	SET_LAW_ENTRY(1, CFG_DDR_SDRAM_BASE, LAW_SIZE_512M, LAW_TRGT_IF_DDR),
 	SET_LAW_ENTRY(2, CFG_PCI1_MEM_PHYS, LAW_SIZE_512M, LAW_TRGT_IF_PCI),
-	SET_LAW_ENTRY(3, CFG_LBC_FLASH_BASE, LAW_SIZE_128M, LAW_TRGT_IF_LBC),
+	SET_LAW_ENTRY(3, CFG_LBC_FLASH_BASE, LAW_SIZE_64M, LAW_TRGT_IF_LBC),
 	SET_LAW_ENTRY(4, CFG_PCI1_IO_PHYS, LAW_SIZE_16M, LAW_TRGT_IF_PCI),
-	SET_LAW_ENTRY(5, CFG_RIO_MEM_BASE, LAWAR_SIZE_512M, LAW_TRGT_IF_RIO),
+#if defined(CFG_FPGA_BASE)
+	SET_LAW_ENTRY(5, CFG_FPGA_BASE, LAWAR_SIZE_1M, LAW_TRGT_IF_LBC),
+#endif
 };
 
 int num_law_entries = ARRAY_SIZE(law_table);
diff --git a/board/socrates/socrates.c b/board/socrates/socrates.c
index 0c61311..59e8865 100644
--- a/board/socrates/socrates.c
+++ b/board/socrates/socrates.c
@@ -37,6 +37,9 @@
 #include <fdt_support.h>
 #include <asm/io.h>
 
+#if defined(CFG_FPGA_BASE)
+#include "upm_table.h"
+#endif
 DECLARE_GLOBAL_DATA_PTR;
 
 extern flash_info_t flash_info[];	/* FLASH chips info */
@@ -76,7 +79,10 @@ int checkboard (void)
 	 * Initialize local bus.
 	 */
 	local_bus_init ();
-
+#if defined(CFG_FPGA_BASE)
+	/* Init UPMA for FPGA access */
+	upmconfig(UPMA, (uint *)UPMTableA, sizeof(UPMTableA)/sizeof(int));
+#endif
 	return 0;
 }
 
diff --git a/board/socrates/tlb.c b/board/socrates/tlb.c
index b80caea..aea99ad 100644
--- a/board/socrates/tlb.c
+++ b/board/socrates/tlb.c
@@ -46,16 +46,13 @@ struct fsl_e_tlb_entry tlb_table[] = {
 
 
 	/*
-	 * TLB 0, 1:	128M	Non-cacheable, guarded
-	 * 0xf8000000	128M	FLASH
+	 * TLB 0:	64M	Non-cacheable, guarded
+	 * 0xfc000000	64M	FLASH
 	 * Out of reset this entry is only 4K.
 	 */
 	SET_TLB_ENTRY(1, CFG_FLASH_BASE, CFG_FLASH_BASE,
 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
 		      0, 1, BOOKE_PAGESZ_64M, 1),
-	SET_TLB_ENTRY(1, CFG_FLASH_BASE + 0x4000000, CFG_FLASH_BASE + 0x4000000,
-		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
-		      0, 0, BOOKE_PAGESZ_64M, 1),
 
 	/*
 	 * TLB 2:	256M	Non-cacheable, guarded
@@ -73,21 +70,15 @@ struct fsl_e_tlb_entry tlb_table[] = {
 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
 		      0, 3, BOOKE_PAGESZ_256M, 1),
 
+#if defined(CFG_FPGA_BASE)
 	/*
-	 * TLB 4:	256M	Non-cacheable, guarded
-	 * 0xc0000000	256M	Rapid IO MEM First half
-	 */
-	SET_TLB_ENTRY(1, CFG_RIO_MEM_BASE, CFG_RIO_MEM_BASE,
-		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
-		      0, 4, BOOKE_PAGESZ_256M, 1),
-
-	/*
-	 * TLB 5:	256M	Non-cacheable, guarded
-	 * 0xd0000000	256M	Rapid IO MEM Second half
+	 * TLB 4:	1M	Non-cacheable, guarded
+	 * 0xc0000000	1M	FPGA and NAND
 	 */
-	SET_TLB_ENTRY(1, CFG_RIO_MEM_BASE + 0x10000000, CFG_RIO_MEM_BASE + 0x10000000,
+	SET_TLB_ENTRY(1, CFG_FPGA_BASE, CFG_FPGA_BASE,
 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
-		      0, 5, BOOKE_PAGESZ_256M, 1),
+		      0, 4, BOOKE_PAGESZ_1M, 1),
+#endif
 
 	/*
 	 * TLB 6:	64M	Non-cacheable, guarded
diff --git a/include/configs/socrates.h b/include/configs/socrates.h
index 6012a99..499f41c 100644
--- a/include/configs/socrates.h
+++ b/include/configs/socrates.h
@@ -216,11 +216,6 @@
 #define CFG_EEPROM_PAGE_WRITE_ENABLE	/* necessary for the LM75 chip */
 #define CFG_EEPROM_PAGE_WRITE_BITS	4
 
-/* RapidIO MMU */
-#define CFG_RIO_MEM_BASE	0xc0000000	/* base address		*/
-#define CFG_RIO_MEM_PHYS	CFG_RIO_MEM_BASE
-#define CFG_RIO_MEM_SIZE	0x20000000	/* 128M			*/
-
 /*
  * General PCI
  * Memory space is mapped 1-1.
@@ -414,4 +409,8 @@
 #define CONFIG_DOS_PARTITION		1
 #define CONFIG_USB_STORAGE		1
 
+/* FPGA and NAND */
+#define CFG_FPGA_BASE			0xc0000000
+#define CFG_BR3_PRELIM			0xc0001881 /* UPMA, 32-bit */
+#define CFG_OR3_PRELIM			0xfff00000  /* 1 MB */
 #endif	/* __CONFIG_H */
-- 
1.5.4.2