From 995727850f8e54547bb26285ef9e2aa73a5c71a5 Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Fri, 21 Apr 2017 07:24:43 -0700 Subject: [PATCH] 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 Reviewed-by: Simon Glass Tested-by: Stefan Roese --- arch/x86/include/asm/acpi_table.h | 9 +++++++++ arch/x86/lib/acpi_table.c | 2 +- 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/arch/x86/include/asm/acpi_table.h b/arch/x86/include/asm/acpi_table.h index 20b906c616..e96409b860 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 8be8120e3d..87a71ca492 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); -- 2.30.2