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x86: apl: Generate ACPI table for LPC

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Add an ACPI table for the LPC on Apollo Lake.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2020-09-22 12:45:22 -06:00 committed by Bin Meng
parent 60c0231078
commit ea78675b96
1 changed files with 18 additions and 0 deletions
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18
arch/x86/cpu/apollolake/lpc.c
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@ -9,10 +9,14 @@
#include <dm.h>
#include <log.h>
#include <spl.h>
#include <acpi/acpi_table.h>
#include <asm/cpu_common.h>
#include <asm/intel_acpi.h>
#include <asm/lpc_common.h>
#include <asm/pci.h>
#include <asm/arch/iomap.h>
#include <asm/arch/lpc.h>
#include <dm/acpi.h>
#include <linux/log2.h>
void lpc_enable_fixed_io_ranges(uint io_enables)
@ -110,6 +114,19 @@ void lpc_io_setup_comm_a_b(void)
lpc_enable_fixed_io_ranges(com_enable);
}
static int apl_acpi_lpc_get_name(const struct udevice *dev, char *out_name)
{
return acpi_copy_name(out_name, "LPCB");
}
struct acpi_ops apl_lpc_acpi_ops = {
.get_name = apl_acpi_lpc_get_name,
#ifdef CONFIG_GENERATE_ACPI_TABLE
.write_tables = intel_southbridge_write_acpi_tables,
#endif
.inject_dsdt = southbridge_inject_dsdt,
};
static const struct udevice_id apl_lpc_ids[] = {
{ .compatible = "intel,apl-lpc" },
{ }
@ -120,4 +137,5 @@ U_BOOT_DRIVER(apl_lpc_drv) = {
.name = "intel_apl_lpc",
.id = UCLASS_LPC,
.of_match = apl_lpc_ids,
ACPI_OPS_PTR(&apl_lpc_acpi_ops)
};