diff options
| author | Stefan Roese <sr@denx.de> | 2008-06-02 17:37:28 +0200 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2008-06-03 20:22:19 +0200 |
| commit | bbeff30cbd1c5d551eb0ad1c2239ec01844c0b0a (patch) | |
| tree | 48f48eadf87f5bc67d2673b7f1ba58a77e882dc2 /board/netstal/hcu5/sdram.c | |
| parent | 192f90e272b3989ee7b4a666d1fdab831f20f8d2 (diff) | |
| download | u-boot-imx-bbeff30cbd1c5d551eb0ad1c2239ec01844c0b0a.zip u-boot-imx-bbeff30cbd1c5d551eb0ad1c2239ec01844c0b0a.tar.gz u-boot-imx-bbeff30cbd1c5d551eb0ad1c2239ec01844c0b0a.tar.bz2 | |
ppc4xx: Remove superfluous dram_init() call or replace it by initdram()
Historically the 405 U-Boot port had a dram_init() call in early init
stage. This function was still called from start.S and most of the time
coded in assembler. This is not needed anymore (since a long time) and
boards should implement the common initdram() function in C instead.
This patch now removed the dram_init() call from start.S and removes the
empty implementations that are scattered through most of the 405 board
ports. Some older board ports really implement this dram_init() though.
These are:
csb272
csb472
ERIC
EXBITGEN
W7OLMC
W7OLMG
I changed those boards to call this assembler dram_init() function now
from their board specific initdram() instead. This *should* work, but please
test again on those platforms. And it is perhaps a good idea that those
boards use some common 405 SDRAM initialization code from cpu/ppc4xx at
some time. So further patches welcome here.
Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'board/netstal/hcu5/sdram.c')
| -rw-r--r-- | board/netstal/hcu5/sdram.c | 26 |
1 files changed, 2 insertions, 24 deletions
diff --git a/board/netstal/hcu5/sdram.c b/board/netstal/hcu5/sdram.c index 6b1b53a..d8817b8 100644 --- a/board/netstal/hcu5/sdram.c +++ b/board/netstal/hcu5/sdram.c @@ -40,28 +40,6 @@ void hcu_led_set(u32 value); void dcbz_area(u32 start_address, u32 num_bytes); -#define DDR_DCR_BASE 0x10 -#define ddrcfga (DDR_DCR_BASE+0x0) /* DDR configuration address reg */ -#define ddrcfgd (DDR_DCR_BASE+0x1) /* DDR configuration data reg */ - -#define DDR0_01_INT_MASK_MASK 0x000000FF -#define DDR0_00_INT_ACK_ALL 0x7F000000 -#define DDR0_01_INT_MASK_ALL_ON 0x000000FF -#define DDR0_01_INT_MASK_ALL_OFF 0x00000000 - -#define DDR0_17_DLLLOCKREG_MASK 0x00010000 /* Read only */ -#define DDR0_17_DLLLOCKREG_UNLOCKED 0x00000000 -#define DDR0_17_DLLLOCKREG_LOCKED 0x00010000 - -#define DDR0_22 0x16 -/* ECC */ -#define DDR0_22_CTRL_RAW_MASK 0x03000000 -#define DDR0_22_CTRL_RAW_ECC_DISABLE 0x00000000 /* ECC not enabled */ -#define DDR0_22_CTRL_RAW_ECC_CHECK_ONLY 0x01000000 /* ECC no correction */ -#define DDR0_22_CTRL_RAW_NO_ECC_RAM 0x02000000 /* Not a ECC RAM*/ -#define DDR0_22_CTRL_RAW_ECC_ENABLE 0x03000000 /* ECC correcting on */ -#define DDR0_03_CASLAT_DECODE(n) ((((unsigned long)(n))>>16)&0x7) - #define ECC_RAM 0x03267F0B #define NO_ECC_RAM 0x00267F0B @@ -111,11 +89,11 @@ static int wait_for_dlllock(void) /* -----------------------------------------------------------+ * Wait for the DCC master delay line to finish calibration * ----------------------------------------------------------*/ - mtdcr(ddrcfga, DDR0_17); + mtdcr(memcfga, DDR0_17); val = DDR0_17_DLLLOCKREG_UNLOCKED; while (wait != 0xffff) { - val = mfdcr(ddrcfgd); + val = mfdcr(memcfgd); if ((val & DDR0_17_DLLLOCKREG_MASK) == DDR0_17_DLLLOCKREG_LOCKED) /* dlllockreg bit on */ |