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baytrail: add punit access functions

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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
This commit is contained in:
Aaron Durbin 2013-10-04 15:23:31 -05:00 • committed by chrome-internal-fetch
commit 286cede01b
2 changed files with 21 additions and 0 deletions
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2
src/soc/intel/baytrail/baytrail/iosf.h
View file

@ -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 */

19
src/soc/intel/baytrail/iosf.c
View file

@ -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);