diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2013-10-11 00:26:04 -0500 |
|---|---|---|
| committer | Aaron Durbin <adurbin@google.com> | 2014-02-13 16:55:56 +0100 |
| commit | 3ccb3ce4157df2cdab6d9a2a02cc609ae2814567 (patch) | |
| tree | 1fb281340087804d982b02df13fd76d6a962cebe /src/soc/intel/baytrail/iosf.c | |
| parent | 1ce0b3022c723ca7c9f00cc884e8e3282cb0dcdb (diff) | |
baytrail: print dram configuration
After running the MRC blob print out some information
on the training: MRC version, number channels, DDR3
type, and DRAM frequency.
Example output:
MRC v0.90
2 channels of DDR3 @ 1066MHz
Apparently there are two dunit IOSF ports -- 1 for each
channel. However, certain registers really on live in
channel 0. Thus, there was some changes to dunit support
in the iosf area.
BUG=chrome-os-partner:22875
BRANCH=None
TEST=Built and booted bayleybay in different configs.
Change-Id: Ib306432b55f9222b4eb3d14b2467bc0e7617e24f
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/172770
Reviewed-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: http://review.coreboot.org/4882
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Diffstat (limited to 'src/soc/intel/baytrail/iosf.c')
| -rw-r--r-- | src/soc/intel/baytrail/iosf.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/soc/intel/baytrail/iosf.c b/src/soc/intel/baytrail/iosf.c index 00a3269da0..e35e34f168 100644 --- a/src/soc/intel/baytrail/iosf.c +++ b/src/soc/intel/baytrail/iosf.c @@ -70,6 +70,21 @@ uint32_t iosf_dunit_read(int reg) return read_iosf_reg(MDR_REG); } +uint32_t iosf_dunit_ch0_read(int reg) +{ + return iosf_dunit_read(reg); +} + +uint32_t iosf_dunit_ch1_read(int reg) +{ + uint32_t cr = IOSF_OPCODE(IOSF_OP_READ_SYSMEMC) | + IOSF_PORT(IOSF_PORT_DUNIT_CH1) | IOSF_REG(reg) | + IOSF_BYTE_EN; + + write_iosf_reg(MCR_REG, cr); + return read_iosf_reg(MDR_REG); +} + void iosf_dunit_write(int reg, uint32_t val) { uint32_t cr = IOSF_OPCODE(IOSF_OP_WRITE_SYSMEMC) | |