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| author | Bin Meng <bmeng.cn@gmail.com> | 2017-04-21 07:24:43 -0700 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2017-05-17 17:11:46 +0800 |
| commit | 995727850f8e54547bb26285ef9e2aa73a5c71a5 (patch) | |
| tree | fcc805c49bc3baf02146b04be5dab4053612804d /arch | |
| parent | b208d1915f1bdba93678b51b87ae214d9e2ca7a3 (diff) | |
| download | u-boot-995727850f8e54547bb26285ef9e2aa73a5c71a5.zip u-boot-995727850f8e54547bb26285ef9e2aa73a5c71a5.tar.gz u-boot-995727850f8e54547bb26285ef9e2aa73a5c71a5.tar.bz2 | |
x86: acpi: Make enter_acpi_mode() public
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/include/asm/acpi_table.h | 9 | ||||
| -rw-r--r-- | arch/x86/lib/acpi_table.c | 2 |
2 files changed, 10 insertions, 1 deletions
diff --git a/arch/x86/include/asm/acpi_table.h b/arch/x86/include/asm/acpi_table.h index 20b906c..e96409b 100644 --- a/arch/x86/include/asm/acpi_table.h +++ b/arch/x86/include/asm/acpi_table.h @@ -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); /** diff --git a/arch/x86/lib/acpi_table.c b/arch/x86/lib/acpi_table.c index 8be8120..87a71ca 100644 --- a/arch/x86/lib/acpi_table.c +++ b/arch/x86/lib/acpi_table.c @@ -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); |