sbc8548: update PCI/PCI-e support code

The PCI/PCI-e support for the sbc8548 was based on an earlier
version of what the MPC8548CDS board was using, and in its
current state it won't even compile.  This re-syncs it to match
the latest codebase and makes use of the new shared PCI functions
to reduce board duplication.

It borrows from the MPC8568MDS, in that it pulls the PCI-e I/O
back to 0xe280_0000 (where PCI2 would be on MPC8548CDS), and
similarly it coalesces the PCI and PCI-e mem into one single TLB.

Both PCI-x and PCI-e have been tested with intel e1000 cards
under linux (with an accompanying dts change in place)

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

1 files changed, 23 insertions, 30 deletions

diff --git a/board/sbc8548/tlb.c b/board/sbc8548/tlb.c
index a1795fcfb2..38bdeb37c3 100644
--- a/board/sbc8548/tlb.c
+++ b/board/sbc8548/tlb.c
@@ -56,60 +56,53 @@ struct fsl_e_tlb_entry tlb_table[] = {
 		      0, 0, BOOKE_PAGESZ_64M, 1),
 
 	/*
-	 * TLB 1:	256M	Non-cacheable, guarded
-	 * 0x80000000	256M	PCI1 MEM First half
+	 * TLB 1:	1G	Non-cacheable, guarded
+	 * 0x80000000	512M	PCI1 MEM
+	 * 0xa0000000	512M	PCIe MEM
 	 */
-	SET_TLB_ENTRY(1, CONFIG_SYS_PCI1_MEM_PHYS, CONFIG_SYS_PCI1_MEM_PHYS,
+	SET_TLB_ENTRY(1, CONFIG_SYS_PCI1_MEM_VIRT, CONFIG_SYS_PCI1_MEM_PHYS,
 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
-		      0, 1, BOOKE_PAGESZ_256M, 1),
+		      0, 1, BOOKE_PAGESZ_1G, 1),
 
 	/*
-	 * TLB 2:	256M	Non-cacheable, guarded
-	 * 0x90000000	256M	PCI1 MEM Second half
-	 */
-	SET_TLB_ENTRY(1, CONFIG_SYS_PCI1_MEM_PHYS + 0x10000000,
-		      CONFIG_SYS_PCI1_MEM_PHYS + 0x10000000,
-		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
-		      0, 2, BOOKE_PAGESZ_256M, 1),
-
-	/*
-	 * TLB 3:	256M Cacheable, non-guarded
+	 * TLB 2:	256M Cacheable, non-guarded
 	 * 0x0		256M DDR SDRAM
 	 */
-	#if !defined(CONFIG_SPD_EEPROM)
+#if !defined(CONFIG_SPD_EEPROM)
 	SET_TLB_ENTRY(1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE,
 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
-		      0, 3, BOOKE_PAGESZ_256M, 1),
-	#endif
+		      0, 2, BOOKE_PAGESZ_256M, 1),
+#endif
 
 	/*
-	 * TLB 4:	64M	Non-cacheable, guarded
+	 * TLB 3:	64M	Non-cacheable, guarded
 	 * 0xe0000000	1M	CCSRBAR
-	 * 0xe2000000	16M	PCI1 IO
+	 * 0xe2000000	8M	PCI1 IO
+	 * 0xe2800000	8M	PCIe IO
 	 */
 	SET_TLB_ENTRY(1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
-		      0, 4, BOOKE_PAGESZ_64M, 1),
+		      0, 3, BOOKE_PAGESZ_64M, 1),
 
 	/*
-	 * TLB 5:	64M	Cacheable, non-guarded
+	 * TLB 4:	64M	Cacheable, non-guarded
 	 * 0xf0000000	64M	LBC SDRAM First half
 	 */
 	SET_TLB_ENTRY(1, CONFIG_SYS_LBC_SDRAM_BASE, CONFIG_SYS_LBC_SDRAM_BASE,
 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
-		      0, 5, BOOKE_PAGESZ_64M, 1),
+		      0, 4, BOOKE_PAGESZ_64M, 1),
 
 	/*
-	 * TLB 6:	64M	Cacheable, non-guarded
+	 * TLB 5:	64M	Cacheable, non-guarded
 	 * 0xf4000000	64M	LBC SDRAM Second half
 	 */
 	SET_TLB_ENTRY(1, CONFIG_SYS_LBC_SDRAM_BASE + 0x4000000,
 		      CONFIG_SYS_LBC_SDRAM_BASE + 0x4000000,
 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
-		      0, 6, BOOKE_PAGESZ_64M, 1),
+		      0, 5, BOOKE_PAGESZ_64M, 1),
 
 	/*
-	 * TLB 7:	16M	Cacheable, non-guarded
+	 * TLB 6:	16M	Cacheable, non-guarded
 	 * 0xf8000000	1M	7-segment LED display
 	 * 0xf8100000	1M	User switches
 	 * 0xf8300000	1M	Board revision
@@ -117,24 +110,24 @@ struct fsl_e_tlb_entry tlb_table[] = {
 	 */
 	SET_TLB_ENTRY(1, CONFIG_SYS_EPLD_BASE, CONFIG_SYS_EPLD_BASE,
 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
-		      0, 7, BOOKE_PAGESZ_16M, 1),
+		      0, 6, BOOKE_PAGESZ_16M, 1),
 
 	/*
-	 * TLB 8:	4M	Non-cacheable, guarded
+	 * TLB 7:	4M	Non-cacheable, guarded
 	 * 0xfb800000	4M	1st 4MB block of 64MB user FLASH
 	 */
 	SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH, CONFIG_SYS_ALT_FLASH,
 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
-		      0, 8, BOOKE_PAGESZ_4M, 1),
+		      0, 7, BOOKE_PAGESZ_4M, 1),
 
 	/*
-	 * TLB 9:	4M	Non-cacheable, guarded
+	 * TLB 8:	4M	Non-cacheable, guarded
 	 * 0xfbc00000	4M	2nd 4MB block of 64MB user FLASH
 	 */
 	SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH + 0x400000,
 		      CONFIG_SYS_ALT_FLASH + 0x400000,
 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
-		      0, 9, BOOKE_PAGESZ_4M, 1),
+		      0, 8, BOOKE_PAGESZ_4M, 1),
 
 };