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lib/nhlt: add support for setting the oem_revision 

In the ACPI header there's an OEM revision field that was previously
just being implicitly set to 0. Allow for a board to provide a
non-zero value for this field.

Change-Id: Icd40c1c162c2645b3990a6f3361c592706251f82
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/17650
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Aaron Durbin 2016-11-29 23:14:25 -06:00
parent d008413a3c
commit b4afe3c197
5 changed files with 15 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/include/nhlt.h
View File

@ -162,7 +162,8 @@ uintptr_t nhlt_serialize(struct nhlt *nhlt, uintptr_t acpi_addr);
* valid after thisfunction is called.
*/
uintptr_t nhlt_serialize_oem_overrides(struct nhlt *nhlt, uintptr_t acpi_addr,
const char *oem_id, const char *oem_table_id);
const char *oem_id, const char *oem_table_id,
uint32_t oem_revision);
/*
* While very similar to nhlt_serialize() the SoC specific function allows
@ -177,7 +178,8 @@ uintptr_t nhlt_soc_serialize(struct nhlt *nhlt, uintptr_t acpi_addr);
* as updating ACPI field references for the serialized structure.
*/
uintptr_t nhlt_soc_serialize_oem_overrides(struct nhlt *nhlt,
uintptr_t acpi_addr, const char *oem_id, const char *oem_table_id);
uintptr_t acpi_addr, const char *oem_id, const char *oem_table_id,
uint32_t oem_revision);
/* Link and device types. */
enum {

6
src/lib/nhlt.c
View File

@ -390,11 +390,12 @@ static void nhlt_serialize_endpoints(struct nhlt *nhlt, struct cursor *cur)
uintptr_t nhlt_serialize(struct nhlt *nhlt, uintptr_t acpi_addr)
{
return nhlt_serialize_oem_overrides(nhlt, acpi_addr, NULL, NULL);
return nhlt_serialize_oem_overrides(nhlt, acpi_addr, NULL, NULL, 0);
}
uintptr_t nhlt_serialize_oem_overrides(struct nhlt *nhlt,
uintptr_t acpi_addr, const char *oem_id, const char *oem_table_id)
uintptr_t acpi_addr, const char *oem_id, const char *oem_table_id,
uint32_t oem_revision)
{
struct cursor cur;
acpi_header_t *header;
@ -424,6 +425,7 @@ uintptr_t nhlt_serialize_oem_overrides(struct nhlt *nhlt,
memcpy(header->oem_id, oem_id, oem_id_len);
memcpy(header->oem_table_id, oem_table_id, oem_table_id_len);
write_le32(&header->oem_revision, oem_revision);
memcpy(header->asl_compiler_id, ASLC, 4);
cur.buf = (void *)(acpi_addr + sizeof(acpi_header_t));

3
src/mainboard/google/reef/mainboard.c
View File

@ -54,6 +54,7 @@ static unsigned long mainboard_write_acpi_tables(
struct nhlt *nhlt;
const char *oem_id = NULL;
const char *oem_table_id = NULL;
uint32_t oem_revision = 0;
start_addr = current;
@ -66,7 +67,7 @@ static unsigned long mainboard_write_acpi_tables(
variant_nhlt_oem_strings(&oem_id, &oem_table_id);
end_addr = nhlt_soc_serialize_oem_overrides(nhlt, start_addr,
oem_id, oem_table_id);
oem_id, oem_table_id, oem_revision);
if (end_addr != start_addr)
acpi_add_table(rsdp, (void *)start_addr);

2
src/mainboard/intel/kunimitsu/mainboard.c
View File

@ -84,7 +84,7 @@ static unsigned long mainboard_write_acpi_tables(
printk(BIOS_ERR, "Couldn't add headset codec.\n");
end_addr = nhlt_soc_serialize_oem_overrides(nhlt, start_addr,
oem_id, oem_table_id);
oem_id, oem_table_id, 0);
if (end_addr != start_addr)
acpi_add_table(rsdp, (void *)start_addr);

7
src/soc/intel/common/nhlt.c
View File

@ -19,11 +19,12 @@
uintptr_t nhlt_soc_serialize(struct nhlt *nhlt, uintptr_t acpi_addr)
{
return nhlt_soc_serialize_oem_overrides(nhlt, acpi_addr, NULL, NULL);
return nhlt_soc_serialize_oem_overrides(nhlt, acpi_addr, NULL, NULL, 0);
}
uintptr_t nhlt_soc_serialize_oem_overrides(struct nhlt *nhlt,
uintptr_t acpi_addr, const char *oem_id, const char *oem_table_id)
uintptr_t acpi_addr, const char *oem_id, const char *oem_table_id,
uint32_t oem_revision)
{
global_nvs_t *gnvs;
@ -37,5 +38,5 @@ uintptr_t nhlt_soc_serialize_oem_overrides(struct nhlt *nhlt,
gnvs->nhll = nhlt_current_size(nhlt);
return nhlt_serialize_oem_overrides(nhlt, acpi_addr,
oem_id, oem_table_id);
oem_id, oem_table_id, oem_revision);
}