New patch to review for coreboot: c39c46a baytrail: add punit access functions

[Aaron Durbin]

Aaron Durbin ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/4867

-gerrit

commit c39c46a44652714dde87c6edda35aa8bd15b669f
Author: Aaron Durbin 
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 
    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);