Aaron Durbin (adurbin@google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/4867
-gerrit
commit 6efe271500fd2c2012406ad684721b173a6138d1 Author: Aaron Durbin adurbin@chromium.org Date: Fri Oct 4 15:23:31 2013 -0500
baytrail: add punit access functions
Like the bunit and dunit, add the punit accessor functions.
BUG=chrome-os-partner:23085 BRANCH=None TEST=Built.
Change-Id: Ifd7184dfca8c0491c107bc1c562ea1ded444e372 Signed-off-by: Aaron Durbin adurbin@chromium.org Reviewed-on: https://chromium-review.googlesource.com/171931 --- src/soc/intel/baytrail/baytrail/iosf.h | 2 ++ src/soc/intel/baytrail/iosf.c | 19 +++++++++++++++++++ 2 files changed, 21 insertions(+)
diff --git a/src/soc/intel/baytrail/baytrail/iosf.h b/src/soc/intel/baytrail/baytrail/iosf.h index b1f28da..cf7e559 100644 --- a/src/soc/intel/baytrail/baytrail/iosf.h +++ b/src/soc/intel/baytrail/baytrail/iosf.h @@ -58,6 +58,8 @@ uint32_t iosf_bunit_read(int reg); void iosf_bunit_write(int reg, uint32_t val); uint32_t iosf_dunit_read(int reg); void iosf_dunit_write(int reg, uint32_t val); +uint32_t iosf_punit_read(int reg); +void iosf_punit_write(int reg, uint32_t val);
/* IOSF ports. */ #define IOSF_PORT_AUNIT 0x00 /* IO Arbiter unit */ diff --git a/src/soc/intel/baytrail/iosf.c b/src/soc/intel/baytrail/iosf.c index 2373d81..00a3269 100644 --- a/src/soc/intel/baytrail/iosf.c +++ b/src/soc/intel/baytrail/iosf.c @@ -76,6 +76,25 @@ void iosf_dunit_write(int reg, uint32_t val) IOSF_PORT(IOSF_PORT_SYSMEMC) | IOSF_REG(reg) | IOSF_BYTE_EN;
+ write_iosf_reg(MCR_REG, cr); + write_iosf_reg(MDR_REG, val); +} + +uint32_t iosf_punit_read(int reg) +{ + uint32_t cr = IOSF_OPCODE(IOSF_OP_READ_PMC) | + IOSF_PORT(IOSF_PORT_PMC) | IOSF_REG(reg) | + IOSF_BYTE_EN; + + write_iosf_reg(MCR_REG, cr); + return read_iosf_reg(MDR_REG); +} + +void iosf_punit_write(int reg, uint32_t val) +{ + uint32_t cr = IOSF_OPCODE(IOSF_OP_WRITE_PMC) | + IOSF_PORT(IOSF_PORT_PMC) | IOSF_REG(reg) | + IOSF_BYTE_EN;
write_iosf_reg(MCR_REG, cr); write_iosf_reg(MDR_REG, val);