mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-08 04:06:15 +09:00
2c64d11e32
Use cpu_x86_get_count() to read the number of cores. cpu_x86_get_count() reads the number of CPUs from the device tree. Using this function we can support multiple Apollo Lake variants, e.g.: E3940 (4 cores) and E3930 (2 cores). This was tested on the E3940 and E3930 Apollo Lake variants. Signed-off-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
37 lines
773 B
C
37 lines
773 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright 2019 Google LLC
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <cpu.h>
|
|
#include <dm.h>
|
|
#include <asm/cpu_common.h>
|
|
#include <asm/cpu_x86.h>
|
|
|
|
static int apl_get_info(struct udevice *dev, struct cpu_info *info)
|
|
{
|
|
return cpu_intel_get_info(info, INTEL_BCLK_MHZ);
|
|
}
|
|
|
|
static const struct cpu_ops cpu_x86_apl_ops = {
|
|
.get_desc = cpu_x86_get_desc,
|
|
.get_info = apl_get_info,
|
|
.get_count = cpu_x86_get_count,
|
|
.get_vendor = cpu_x86_get_vendor,
|
|
};
|
|
|
|
static const struct udevice_id cpu_x86_apl_ids[] = {
|
|
{ .compatible = "intel,apl-cpu" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(cpu_x86_apl_drv) = {
|
|
.name = "cpu_x86_apl",
|
|
.id = UCLASS_CPU,
|
|
.of_match = cpu_x86_apl_ids,
|
|
.bind = cpu_x86_bind,
|
|
.ops = &cpu_x86_apl_ops,
|
|
.flags = DM_FLAG_PRE_RELOC,
|
|
};
|