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https://github.com/AsahiLinux/u-boot
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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>
36 lines
773 B
C
36 lines
773 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright 2019 Google LLC
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*/
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#include <common.h>
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#include <cpu.h>
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#include <dm.h>
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#include <asm/cpu_common.h>
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#include <asm/cpu_x86.h>
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static int apl_get_info(struct udevice *dev, struct cpu_info *info)
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{
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return cpu_intel_get_info(info, INTEL_BCLK_MHZ);
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}
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static const struct cpu_ops cpu_x86_apl_ops = {
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.get_desc = cpu_x86_get_desc,
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.get_info = apl_get_info,
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.get_count = cpu_x86_get_count,
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.get_vendor = cpu_x86_get_vendor,
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};
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static const struct udevice_id cpu_x86_apl_ids[] = {
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{ .compatible = "intel,apl-cpu" },
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{ }
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};
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U_BOOT_DRIVER(cpu_x86_apl_drv) = {
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.name = "cpu_x86_apl",
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.id = UCLASS_CPU,
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.of_match = cpu_x86_apl_ids,
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.bind = cpu_x86_bind,
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.ops = &cpu_x86_apl_ops,
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.flags = DM_FLAG_PRE_RELOC,
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};
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