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-rw-r--r--src/soc/amd/common/block/acpimmio/mmio_util.c22
1 files changed, 7 insertions, 15 deletions
diff --git a/src/soc/amd/common/block/acpimmio/mmio_util.c b/src/soc/amd/common/block/acpimmio/mmio_util.c
index d6320d69d8..c8c69888c6 100644
--- a/src/soc/amd/common/block/acpimmio/mmio_util.c
+++ b/src/soc/amd/common/block/acpimmio/mmio_util.c
@@ -142,11 +142,7 @@ uint8_t biosram_read8(uint8_t reg)
uint16_t biosram_read16(uint8_t reg) /* Must be 1 byte at a time */
{
- int i;
- uint16_t value = 0;
- for (i = sizeof(value) - 1 ; i >= 0 ; i--)
- value = (value << 8) | biosram_read8(reg + i);
- return value;
+ return (biosram_read8(reg + sizeof(uint8_t)) << 8 | biosram_read8(reg));
}
uint32_t biosram_read32(uint8_t reg)
@@ -162,20 +158,16 @@ void biosram_write8(uint8_t reg, uint8_t value)
void biosram_write16(uint8_t reg, uint16_t value)
{
- int i;
- for (i = 0 ; i < sizeof(value) ; i++) {
- biosram_write8(reg + i, value & 0xff);
- value >>= 8;
- }
+ biosram_write8(reg, value & 0xff);
+ value >>= 8;
+ biosram_write8(reg + sizeof(uint8_t), value & 0xff);
}
void biosram_write32(uint8_t reg, uint32_t value)
{
- int i;
- for (i = 0 ; i < sizeof(value) ; i++) {
- biosram_write8(reg + i, value & 0xff);
- value >>= 8;
- }
+ biosram_write16(reg, value & 0xffff);
+ value >>= 16;
+ biosram_write16(reg + sizeof(uint16_t), value & 0xffff);
}
/* cmosram read/write - access registers at 0xfed80600 - currently unused */