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x86: acpi: Make enter_acpi_mode() public

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enter_acpi_mode() is useful on other boot path like S3 resume, so
make it public.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Bin Meng 2017-04-21 07:24:43 -07:00
parent b208d1915f
commit 995727850f
2 changed files with 10 additions and 1 deletions
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9
arch/x86/include/asm/acpi_table.h
View File

@ -316,6 +316,15 @@ int acpi_create_madt_lapic_nmi(struct acpi_madt_lapic_nmi *lapic_nmi,
u8 cpu, u16 flags, u8 lint);
u32 acpi_fill_madt(u32 current);
void acpi_create_gnvs(struct acpi_global_nvs *gnvs);
/**
* enter_acpi_mode() - enter into ACPI mode
*
* This programs the ACPI-defined PM1_CNT register to enable SCI interrupt
* so that the whole system swiches to ACPI mode.
*
* @pm1_cnt: PM1_CNT register I/O address
*/
void enter_acpi_mode(int pm1_cnt);
ulong write_acpi_tables(ulong start);
/**

2
arch/x86/lib/acpi_table.c
View File

@ -304,7 +304,7 @@ static void acpi_create_mcfg(struct acpi_mcfg *mcfg)
header->checksum = table_compute_checksum((void *)mcfg, header->length);
}
static void enter_acpi_mode(int pm1_cnt)
void enter_acpi_mode(int pm1_cnt)
{
u16 val = inw(pm1_cnt);