[U-Boot-Users] [PATCH] Update MPC8544 DS PCI memory map

[Kumar Gala]

The PCIe bus that the ULI M1575 is connected to has no possible way of
needing more than the fixed amount of IO & Memory space needed by the ULI.

So make it use far less IO & memory space and have it use the shared LAW.  This
free's up a LAW for PCIe1 IO space.  Also reduce the amount of IO space needed
by each bus.

Signed-off-by: Kumar Gala <galak at kernel.crashing.org>
---
 board/freescale/mpc8544ds/init.S |   13 ++++++-------
 include/configs/MPC8544DS.h      |   21 +++++++++------------
 2 files changed, 15 insertions(+), 19 deletions(-)

diff --git a/board/freescale/mpc8544ds/init.S b/board/freescale/mpc8544ds/init.S
index ea7d54d..900c368 100644
--- a/board/freescale/mpc8544ds/init.S
+++ b/board/freescale/mpc8544ds/init.S
@@ -218,7 +218,7 @@ law_entry:
 	.long	LAWAR_EN | LAWAR_TRGT_PCI1 | (LAWAR_SIZE & LAWAR_SIZE_512M)

 	.long	(CFG_PCI1_IO_PHYS>>12) & 0xfffff
-	.long	LAWAR_EN | LAWAR_TRGT_PCI1 | (LAWAR_SIZE & LAWAR_SIZE_16M)
+	.long	LAWAR_EN | LAWAR_TRGT_PCI1 | (LAWAR_SIZE & LAWAR_SIZE_64K)

 	.long	(CFG_LBC_CACHE_BASE>>12) & 0xfffff
 	.long	LAWAR_EN | LAWAR_TRGT_LBC | (LAWAR_SIZE & LAWAR_SIZE_256M)
@@ -226,18 +226,17 @@ law_entry:
 	.long	(CFG_PCIE1_MEM_PHYS>>12) & 0xfffff
 	.long	LAWAR_EN | LAWAR_TRGT_PCIE1 | (LAWAR_SIZE & LAWAR_SIZE_256M)

-	/* To keep to 10 LAWs, PCIE1_IO_PHYS must use top of mem region  */
+	.long	(CFG_PCIE1_IO_PHYS>>12) & 0xfffff
+	.long	LAWAR_EN | LAWAR_TRGT_PCIE1 | (LAWAR_SIZE & LAWAR_SIZE_64K)

 	.long	(CFG_PCIE2_MEM_PHYS>>12) & 0xfffff
 	.long	LAWAR_EN | LAWAR_TRGT_PCIE2 | (LAWAR_SIZE & LAWAR_SIZE_512M)

 	.long	(CFG_PCIE2_IO_PHYS>>12) & 0xfffff
-	.long	LAWAR_EN | LAWAR_TRGT_PCIE2 | (LAWAR_SIZE & LAWAR_SIZE_16M)
+	.long	LAWAR_EN | LAWAR_TRGT_PCIE2 | (LAWAR_SIZE & LAWAR_SIZE_64K)

+	/* contains both PCIE3 MEM & IO space */
 	.long	(CFG_PCIE3_MEM_PHYS>>12) & 0xfffff
-	.long	LAWAR_EN | LAWAR_TRGT_PCIE3 | (LAWAR_SIZE & LAWAR_SIZE_256M)
-
-	.long	(CFG_PCIE3_IO_PHYS>>12) & 0xfffff
-	.long	LAWAR_EN | LAWAR_TRGT_PCIE3 | (LAWAR_SIZE & LAWAR_SIZE_16M)
+	.long	LAWAR_EN | LAWAR_TRGT_PCIE3 | (LAWAR_SIZE & LAWAR_SIZE_2M)
 4:
 	entry_end
diff --git a/include/configs/MPC8544DS.h b/include/configs/MPC8544DS.h
index fcb92fa..746f360 100644
--- a/include/configs/MPC8544DS.h
+++ b/include/configs/MPC8544DS.h
@@ -282,7 +282,7 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 #define CFG_PCI1_MEM_SIZE	0x20000000	/* 512M */
 #define CFG_PCI1_IO_BASE	0x00000000
 #define CFG_PCI1_IO_PHYS	0xe1000000
-#define CFG_PCI1_IO_SIZE	0x00100000	/* 1M */
+#define CFG_PCI1_IO_SIZE	0x00010000	/* 64k */

 /* PCI view of System Memory */
 #define CFG_PCI_MEMORY_BUS	0x00000000
@@ -294,26 +294,23 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 #define CFG_PCIE2_MEM_PHYS	CFG_PCIE2_MEM_BASE
 #define CFG_PCIE2_MEM_SIZE	0x20000000	/* 512M */
 #define CFG_PCIE2_IO_BASE	0x00000000
-#define CFG_PCIE2_IO_PHYS	0xe2000000
-#define CFG_PCIE2_IO_SIZE	0x00100000	/* 1M */
+#define CFG_PCIE2_IO_PHYS	0xe1010000
+#define CFG_PCIE2_IO_SIZE	0x00010000	/* 64k */

 /* controller 1, Slot 2,tgtid 2, Base address a000 */
 #define CFG_PCIE1_MEM_BASE	0xa0000000
 #define CFG_PCIE1_MEM_PHYS	CFG_PCIE1_MEM_BASE
-#define CFG_PCIE1_MEM_SIZE	0x08000000	/* 128M */
-#define CFG_PCIE1_MEM_BASE2	0xa8000000
-#define CFG_PCIE1_MEM_PHYS2	CFG_PCIE1_MEM_BASE2
-#define CFG_PCIE1_MEM_SIZE2	0x04000000	/* 64M */
-#define CFG_PCIE1_IO_BASE	0x00000000	/* reuse mem LAW */
-#define CFG_PCIE1_IO_PHYS	0xaf000000
-#define CFG_PCIE1_IO_SIZE	0x00100000	/* 1M */
+#define CFG_PCIE1_MEM_SIZE	0x10000000	/* 256M */
+#define CFG_PCIE1_IO_BASE	0x00000000
+#define CFG_PCIE1_IO_PHYS	0xe1020000
+#define CFG_PCIE1_IO_SIZE	0x00010000	/* 64k */

 /* controller 3, direct to uli, tgtid 3, Base address b000 */
 #define CFG_PCIE3_MEM_BASE	0xb0000000
 #define CFG_PCIE3_MEM_PHYS	CFG_PCIE3_MEM_BASE
-#define CFG_PCIE3_MEM_SIZE	0x10000000	/* 256M */
+#define CFG_PCIE3_MEM_SIZE	0x00100000	/* 1M */
 #define CFG_PCIE3_IO_BASE	0x00000000
-#define CFG_PCIE3_IO_PHYS	0xe3000000
+#define CFG_PCIE3_IO_PHYS	0xb0100000	/* reuse mem LAW */
 #define CFG_PCIE3_IO_SIZE	0x00100000	/* 1M */

 #if defined(CONFIG_PCI)
-- 
1.5.2.2