mirror of
https://xff.cz/git/u-boot/
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e1302b3e30
Create a sysinfo driver to avoid needing a custom checkboard() function. With this the following information is printed when booting from coreboot under QEMU: Model: Standard PC (i440FX + PIIX, 1996) Manufacturer: QEMU Prior-stage version: 4.21-885-g2a87ef1eca56 Prior-stage date: 11/11/2023 Signed-off-by: Simon Glass <sjg@chromium.org>
90 lines
2.1 KiB
C
90 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* coreboot sysinfo driver
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*
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* Copyright 2023 Google LLC
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#include <dm.h>
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#include <smbios.h>
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#include <sysinfo.h>
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#include <asm/cb_sysinfo.h>
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struct cb_sysinfo_priv {
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const struct smbios_header *bios;
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const struct smbios_header *system;
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const struct smbios_type0 *t0;
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const struct smbios_type1 *t1;
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};
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static int cb_get_str(struct udevice *dev, int id, size_t size, char *val)
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{
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struct cb_sysinfo_priv *priv = dev_get_priv(dev);
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const char *str = NULL;
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switch (id) {
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case SYSINFO_ID_BOARD_MODEL:
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if (priv->t1)
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str = smbios_string(priv->system,
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priv->t1->product_name);
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break;
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case SYSINFO_ID_BOARD_MANUFACTURER:
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if (priv->t1)
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str = smbios_string(priv->system,
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priv->t1->manufacturer);
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break;
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case SYSINFO_ID_PRIOR_STAGE_VERSION:
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if (priv->t0)
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str = smbios_string(priv->bios, priv->t0->bios_ver);
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break;
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case SYSINFO_ID_PRIOR_STAGE_DATE:
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if (priv->t0)
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str = smbios_string(priv->bios,
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priv->t0->bios_release_date);
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break;
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}
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if (!str)
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return -ENOTSUPP;
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strlcpy(val, str, size);
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return 0;
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}
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static int cb_detect(struct udevice *dev)
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{
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struct cb_sysinfo_priv *priv = dev_get_priv(dev);
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const struct smbios_entry *smbios;
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smbios = smbios_entry(lib_sysinfo.smbios_start,
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lib_sysinfo.smbios_size);
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if (!smbios)
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return 0;
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priv->bios = smbios_header(smbios, SMBIOS_BIOS_INFORMATION);
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priv->system = smbios_header(smbios, SMBIOS_SYSTEM_INFORMATION);
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priv->t0 = (struct smbios_type0 *)priv->bios;
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priv->t1 = (struct smbios_type1 *)priv->system;
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return 0;
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}
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static const struct udevice_id sysinfo_coreboot_ids[] = {
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{ .compatible = "coreboot,sysinfo" },
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{ /* sentinel */ }
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};
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static const struct sysinfo_ops sysinfo_coreboot_ops = {
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.detect = cb_detect,
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.get_str = cb_get_str,
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};
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U_BOOT_DRIVER(sysinfo_coreboot) = {
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.name = "sysinfo_coreboot",
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.id = UCLASS_SYSINFO,
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.of_match = sysinfo_coreboot_ids,
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.ops = &sysinfo_coreboot_ops,
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.priv_auto = sizeof(struct cb_sysinfo_priv),
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};
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