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authorSonic Zhang <sonic.zhang@analog.com>2008-01-27 16:32:31 +0800
committerBryan Wu <bryan.wu@analog.com>2008-01-27 16:32:31 +0800
commit971d5bc4e5c75bfc4466deaff09839cd6f918eca (patch)
tree1a3259e1c00c519e71e0f0842de3ec257781482c /arch/blackfin
parentb03b08ba9c7235861adf4dde712dade0bb756fe0 (diff)
downloadblackbird-op-linux-971d5bc4e5c75bfc4466deaff09839cd6f918eca.tar.gz
blackbird-op-linux-971d5bc4e5c75bfc4466deaff09839cd6f918eca.zip
[Blackfin] arch: Fix bug to Enable bf548 to Re-program Clocks while Kernel boots.
Reprogram DDR EBIU register properly for bf548. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Diffstat (limited to 'arch/blackfin')
-rw-r--r--arch/blackfin/Kconfig19
-rw-r--r--arch/blackfin/mach-bf548/head.S47
2 files changed, 64 insertions, 2 deletions
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 5ebcfd226ed8..1364dcaccc18 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -317,7 +317,7 @@ config VCO_MULT
range 1 64
default "22" if BFIN533_EZKIT
default "45" if BFIN533_STAMP
- default "20" if (BFIN537_STAMP || BFIN527_EZKIT)
+ default "20" if (BFIN537_STAMP || BFIN527_EZKIT || BFIN548_EZKIT)
default "22" if BFIN533_BLUETECHNIX_CM
default "20" if BFIN537_BLUETECHNIX_CM
default "20" if BFIN561_BLUETECHNIX_CM
@@ -354,7 +354,7 @@ config SCLK_DIV
range 1 15
default 5 if BFIN533_EZKIT
default 5 if BFIN533_STAMP
- default 4 if (BFIN537_STAMP || BFIN527_EZKIT)
+ default 4 if (BFIN537_STAMP || BFIN527_EZKIT || BFIN548_EZKIT)
default 5 if BFIN533_BLUETECHNIX_CM
default 4 if BFIN537_BLUETECHNIX_CM
default 4 if BFIN561_BLUETECHNIX_CM
@@ -409,6 +409,7 @@ config MEM_SIZE
default 32 if BFIN533_EZKIT
default 64 if BFIN527_EZKIT
default 64 if BFIN537_STAMP
+ default 64 if BFIN548_EZKIT
default 64 if BFIN561_EZKIT
default 128 if BFIN533_STAMP
default 64 if PNAV10
@@ -416,6 +417,7 @@ config MEM_SIZE
config MEM_ADD_WIDTH
int "SDRAM Memory Address Width"
+ depends on (!BF54x)
default 9 if BFIN533_EZKIT
default 9 if BFIN561_EZKIT
default 9 if H8606_HVSISTEMAS
@@ -424,6 +426,19 @@ config MEM_ADD_WIDTH
default 11 if BFIN533_STAMP
default 10 if PNAV10
+
+choice
+ prompt "DDR SDRAM Chip Type"
+ depends on BFIN548_EZKIT
+ default MEM_MT46V32M16_5B
+
+config MEM_MT46V32M16_6T
+ bool "MT46V32M16_6T"
+
+config MEM_MT46V32M16_5B
+ bool "MT46V32M16_5B"
+endchoice
+
config ENET_FLASH_PIN
int "PF port/pin used for flash and ethernet sharing"
depends on (BFIN533_STAMP)
diff --git a/arch/blackfin/mach-bf548/head.S b/arch/blackfin/mach-bf548/head.S
index 745662e88759..74fe258421a5 100644
--- a/arch/blackfin/mach-bf548/head.S
+++ b/arch/blackfin/mach-bf548/head.S
@@ -324,12 +324,25 @@ ENTRY(_start_dma_code)
w[p0] = r0.l;
ssync;
+#if defined(CONFIG_BF54x)
+ P2.H = hi(EBIU_RSTCTL);
+ P2.L = lo(EBIU_RSTCTL);
+ R0 = [P2];
+ BITSET (R0, 3);
+#else
P2.H = hi(EBIU_SDGCTL);
P2.L = lo(EBIU_SDGCTL);
R0 = [P2];
BITSET (R0, 24);
+#endif
[P2] = R0;
SSYNC;
+#if defined(CONFIG_BF54x)
+.LSRR_MODE:
+ R0 = [P2];
+ CC = BITTST(R0, 4);
+ if !CC JUMP .LSRR_MODE;
+#endif
r0 = CONFIG_VCO_MULT & 63; /* Load the VCO multiplier */
r0 = r0 << 9; /* Shift it over, */
@@ -361,6 +374,39 @@ ENTRY(_start_dma_code)
w[p0] = r0.l;
ssync;
+#if defined(CONFIG_BF54x)
+ P2.H = hi(EBIU_RSTCTL);
+ P2.L = lo(EBIU_RSTCTL);
+ R0 = [P2];
+ CC = BITTST(R0, 0);
+ if CC jump .Lskipddrrst;
+ BITSET (R0, 0);
+.Lskipddrrst:
+ BITCLR (R0, 3);
+ [P2] = R0;
+ SSYNC;
+
+ p0.l = lo(EBIU_DDRCTL0);
+ p0.h = hi(EBIU_DDRCTL0);
+ r0.l = lo(mem_DDRCTL0);
+ r0.h = hi(mem_DDRCTL0);
+ [p0] = r0;
+ ssync;
+
+ p0.l = lo(EBIU_DDRCTL1);
+ p0.h = hi(EBIU_DDRCTL1);
+ r0.l = lo(mem_DDRCTL1);
+ r0.h = hi(mem_DDRCTL1);
+ [p0] = r0;
+ ssync;
+
+ p0.l = lo(EBIU_DDRCTL2);
+ p0.h = hi(EBIU_DDRCTL2);
+ r0.l = lo(mem_DDRCTL2);
+ r0.h = hi(mem_DDRCTL2);
+ [p0] = r0;
+ ssync;
+#else
p0.l = lo(EBIU_SDRRC);
p0.h = hi(EBIU_SDRRC);
r0 = mem_SDRRC;
@@ -394,6 +440,7 @@ ENTRY(_start_dma_code)
R1 = R1 | R0;
[P2] = R1;
SSYNC;
+#endif
p0.h = hi(SIC_IWR0);
p0.l = lo(SIC_IWR0);
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