mpc85xx boards: initdram() cleanup/bugfix

Correct initdram to use phys_size_t to represent the size of
dram; instead of changing this all over the place, and correcting
all the other random errors I've noticed, create a
common initdram that is used by all non-corenet 85xx parts.  Most
of the initdram() functions were identical, with 2 common differences:

1) DDR tlbs for the fixed_sdram case were set up in initdram() on
some boards, and were part of the tlb_table on others.  I have
changed them all over to the initdram() method - we shouldn't
be accessing dram before this point so they don't need to be
done sooner, and this seems cleaner.

2) Parts that require the DDR11 erratum workaround had different
implementations - I have adopted the version from the Freescale
errata document.  It also looks like some of the versions were
buggy, and, depending on timing, could have resulted in the
DDR controller being disabled.  This seems bad.

The xpedite boards had a common/fsl_8xxx_ddr.c; with this
change only the 517 board uses this so I have moved the ddr code
into that board's directory in xpedite517x.c

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

2 files changed, 0 insertions, 84 deletions

diff --git a/board/tqc/tqm85xx/sdram.c b/board/tqc/tqm85xx/sdram.c
index 260cd1c..b2d3185 100644
--- a/board/tqc/tqm85xx/sdram.c
+++ b/board/tqc/tqm85xx/sdram.c
@@ -394,43 +394,6 @@ static phys_size_t sdram_setup(int casl)
 	return (i < N_DDR_CS_CONF) ? ddr_cs_conf[i].size : 0;
 }
 
-phys_size_t initdram (int board_type)
-{
-	phys_size_t dram_size = 0;
-
-#if defined(CONFIG_DDR_DLL)
-	/*
-	 * This DLL-Override only used on TQM8540 and TQM8560
-	 */
-	{
-		volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
-		int i, x;
-
-		x = 10;
-
-		/*
-		 * Work around to stabilize DDR DLL
-		 */
-		gur->ddrdllcr = 0x81000000;
-		asm ("sync; isync; msync");
-		udelay (200);
-		while (gur->ddrdllcr != 0x81000100) {
-			gur->devdisr = gur->devdisr | 0x00010000;
-			asm ("sync; isync; msync");
-			for (i = 0; i < x; i++)
-				;
-			gur->devdisr = gur->devdisr & 0xfff7ffff;
-			asm ("sync; isync; msync");
-			x++;
-		}
-	}
-#endif
-
-	dram_size = fixed_sdram();
-
-	return dram_size;
-}
-
 #if defined(CONFIG_SYS_DRAM_TEST)
 int testdram (void)
 {
diff --git a/board/tqc/tqm85xx/tlb.c b/board/tqc/tqm85xx/tlb.c
index 75dd348..f9f8cc9 100644
--- a/board/tqc/tqm85xx/tlb.c
+++ b/board/tqc/tqm85xx/tlb.c
@@ -120,36 +120,6 @@ struct fsl_e_tlb_entry tlb_table[] = {
 	SET_TLB_ENTRY (1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
 		       MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
 		       0, 6, BOOKE_PAGESZ_64M, 1),
-
-#if defined(CONFIG_TQM8548_AG) || defined (CONFIG_TQM8548_BE)
-	/*
-	 * TLB 7+8:	  2G	 DDR, cache enabled
-	 * 0x00000000	  2G	 DDR System memory
-	 * Without SPD EEPROM configured DDR, this must be setup manually.
-	 */
-	SET_TLB_ENTRY (1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE,
-		       MAS3_SX | MAS3_SW | MAS3_SR, 0,
-		       0, 7, BOOKE_PAGESZ_1G, 1),
-
-	SET_TLB_ENTRY (1, CONFIG_SYS_DDR_SDRAM_BASE + 0x40000000,
-		       CONFIG_SYS_DDR_SDRAM_BASE + 0x40000000,
-		       MAS3_SX | MAS3_SW | MAS3_SR, 0,
-		       0, 8, BOOKE_PAGESZ_1G, 1),
-#else
-	/*
-	 * TLB 7+8:	512M	 DDR, cache disabled (needed for memory test)
-	 * 0x00000000	512M	 DDR System memory
-	 * Without SPD EEPROM configured DDR, this must be setup manually.
-	 */
-	SET_TLB_ENTRY (1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE,
-		       MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
-		       0, 7, BOOKE_PAGESZ_256M, 1),
-
-	SET_TLB_ENTRY (1, CONFIG_SYS_DDR_SDRAM_BASE + 0x10000000,
-		       CONFIG_SYS_DDR_SDRAM_BASE + 0x10000000,
-		       MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
-		       0, 8, BOOKE_PAGESZ_256M, 1),
-#endif
 #ifdef CONFIG_PCIE1
 	/*
 	 * TLB 9:	 16M	Non-cacheable, guarded
@@ -228,23 +198,6 @@ struct fsl_e_tlb_entry tlb_table[] = {
 	SET_TLB_ENTRY (1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
 		       MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
 		       0, 7, BOOKE_PAGESZ_64M, 1),
-
-	/*
-	 * TLB 8+9:	512M	 DDR, cache disabled (needed for memory test)
-	 * 0x00000000	512M	 DDR System memory
-	 * Without SPD EEPROM configured DDR, this must be setup manually.
-	 * Make sure the TLB count at the top of this table is correct.
-	 * Likely it needs to be increased by two for these entries.
-	 */
-	SET_TLB_ENTRY (1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE,
-		       MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
-		       0, 8, BOOKE_PAGESZ_256M, 1),
-
-	SET_TLB_ENTRY (1, CONFIG_SYS_DDR_SDRAM_BASE + 0x10000000,
-		       CONFIG_SYS_DDR_SDRAM_BASE + 0x10000000,
-		       MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
-		       0, 9, BOOKE_PAGESZ_256M, 1),
-
 #ifdef CONFIG_PCIE1
 	/*
 	 * TLB 10:	 16M	Non-cacheable, guarded