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authorKevin Chiu <Kevin.Chiu@quantatw.com>2018-07-03 19:13:34 +0800
committerMartin Roth <martinroth@google.com>2018-07-03 14:19:34 +0000
commitd837e660074e0621d63f59515f933c209441b653 (patch)
tree85e25e8d74bc0dc8d443eeaf85da1125e5868bdb /src/soc
parent0be6cee817d69fa32230405bc1eb70b6505ab88a (diff)
downloadcoreboot-d837e660074e0621d63f59515f933c209441b653.tar.xz
soc/amd/stoneyridge: correct GPIO emission error in ACPI
It can not emit byte data without BytePrefix. design to: Or (Local5, GPIO_PIN_OUT, Local5) error due to GPIO_PIN_OUT is 0x40 but 0x40 encoding means nothing in AML spec. so it will include next emitted string in Or: Or (Local5, Local5, \_SB.GPW2) fix: Store (0x40, Local0) Or (Local5, Local0, Local5) BUG=b:110962003 BRANCH=master TEST=emerge-grunt coreboot extract SSDT then check ACPI syntax is correct Change-Id: I7a0704112b77105826de87b14a38ed2f665224d5 Signed-off-by: Kevin Chiu <Kevin.Chiu@quantatw.com> Reviewed-on: https://review.coreboot.org/27306 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/soc')
-rw-r--r--src/soc/amd/stoneyridge/acpi.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/src/soc/amd/stoneyridge/acpi.c b/src/soc/amd/stoneyridge/acpi.c
index 8130b79c2c..5f9e792df7 100644
--- a/src/soc/amd/stoneyridge/acpi.c
+++ b/src/soc/amd/stoneyridge/acpi.c
@@ -357,14 +357,19 @@ static int acpigen_soc_set_gpio_val(unsigned int gpio_num, uint32_t val)
}
uintptr_t addr = (uintptr_t) gpio_get_address(gpio_num);
+ /* Store (0x40, Local0) */
+ acpigen_write_store();
+ acpigen_write_integer(GPIO_PIN_OUT);
+ acpigen_emit_byte(LOCAL0_OP);
+
acpigen_soc_get_gpio_in_local5(addr);
if (val) {
/* Or (Local5, GPIO_PIN_OUT, Local5) */
- acpigen_write_or(LOCAL5_OP, GPIO_PIN_OUT, LOCAL5_OP);
+ acpigen_write_or(LOCAL5_OP, LOCAL0_OP, LOCAL5_OP);
} else {
/* Not (GPIO_PIN_OUT, Local6) */
- acpigen_write_not(GPIO_PIN_OUT, LOCAL6_OP);
+ acpigen_write_not(LOCAL0_OP, LOCAL6_OP);
/* And (Local5, Local6, Local5) */
acpigen_write_and(LOCAL5_OP, LOCAL6_OP, LOCAL5_OP);