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| author | Joe Hershberger <joe.hershberger@ni.com> | 2011-10-11 23:57:31 -0500 |
|---|---|---|
| committer | Kim Phillips <kim.phillips@freescale.com> | 2011-11-03 18:27:56 -0500 |
| commit | 2e651b248348e156d193e46f7a5b827d74af90d6 (patch) | |
| tree | 76515fcf8008dbaefcdfdb6afffdb79376a82057 /board/freescale/mpc8313erdb | |
| parent | 7d6a098219f8473ca4653cce5f7a49672b967f36 (diff) | |
| download | blackbird-obmc-uboot-2e651b248348e156d193e46f7a5b827d74af90d6.tar.gz blackbird-obmc-uboot-2e651b248348e156d193e46f7a5b827d74af90d6.zip | |
mpc83xx: Rename CONFIG_SYS_DDR_CONFIG and cleanup DDR csbnds code
Rename CONFIG_SYS_DDR_CONFIG to include which CS it is configuring
Cleanup the setting of the csnbds to respect the setting of
CONFIG_SYS_DDR_SDRAM_BASE
Use __ilog2 instead of writing the code to compute it
Disable unused CS configs
Ensure ddrlaw.bar is configured
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Cc: Joe Hershberger <joe.hershberger@gmail.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Diffstat (limited to 'board/freescale/mpc8313erdb')
| -rw-r--r-- | board/freescale/mpc8313erdb/sdram.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/board/freescale/mpc8313erdb/sdram.c b/board/freescale/mpc8313erdb/sdram.c index 7aede136d6..a9a2ba4706 100644 --- a/board/freescale/mpc8313erdb/sdram.c +++ b/board/freescale/mpc8313erdb/sdram.c @@ -74,8 +74,14 @@ static long fixed_sdram(void) */ __udelay(50000); - im->ddr.csbnds[0].csbnds = (msize - 1) >> 24; - im->ddr.cs_config[0] = CONFIG_SYS_DDR_CONFIG; +#if ((CONFIG_SYS_DDR_SDRAM_BASE & 0x00FFFFFF) != 0) +#warning Chip select bounds is only configurable in 16MB increments +#endif + im->ddr.csbnds[0].csbnds = + ((CONFIG_SYS_DDR_SDRAM_BASE >> CSBNDS_SA_SHIFT) & CSBNDS_SA) | + (((CONFIG_SYS_DDR_SDRAM_BASE + msize - 1) >> CSBNDS_EA_SHIFT) & + CSBNDS_EA); + im->ddr.cs_config[0] = CONFIG_SYS_DDR_CS0_CONFIG; /* Currently we use only one CS, so disable the other bank. */ im->ddr.cs_config[1] = 0; |
