[PATCH 10/11] sysinfo: Add driver for IOT2050 boards
Jan Kiszka
jan.kiszka at siemens.com
Thu Oct 10 07:55:54 CEST 2024
From: Li Hua Qian <huaqian.li at siemens.com>
This brings a sysinfo driver and DT entry for the IOT2050 board series.
It translates the board information passed from SE-Boot to SPL into
values that can be retrieved via the sysinfo API. Will is already used
to fill the SMBIOS table when booting via EFI.
Signed-off-by: Li Hua Qian <huaqian.li at siemens.com>
[Jan: split-off as separate patch, cleanup]
Signed-off-by: Jan Kiszka <jan.kiszka at siemens.com>
---
.../dts/k3-am65-iot2050-common-u-boot.dtsi | 18 +++
configs/iot2050_defconfig | 1 +
drivers/sysinfo/Kconfig | 7 +
drivers/sysinfo/Makefile | 1 +
drivers/sysinfo/iot2050.c | 143 ++++++++++++++++++
drivers/sysinfo/iot2050.h | 26 ++++
6 files changed, 196 insertions(+)
create mode 100644 drivers/sysinfo/iot2050.c
create mode 100644 drivers/sysinfo/iot2050.h
diff --git a/arch/arm/dts/k3-am65-iot2050-common-u-boot.dtsi b/arch/arm/dts/k3-am65-iot2050-common-u-boot.dtsi
index b6d2c816acc..55337179f9f 100644
--- a/arch/arm/dts/k3-am65-iot2050-common-u-boot.dtsi
+++ b/arch/arm/dts/k3-am65-iot2050-common-u-boot.dtsi
@@ -14,6 +14,24 @@
spi0 = &ospi0;
};
+ sysinfo {
+ compatible = "siemens,sysinfo-iot2050";
+ /* TI_SRAM_SCRATCH_BOARD_EEPROM_START */
+ offset = <0x40280000>;
+ bootph-all;
+
+ smbios {
+ system {
+ manufacturer = "SIEMENS AG";
+ product = "SIMATIC IOT2050";
+ };
+
+ baseboard {
+ manufacturer = "SIEMENS AG";
+ };
+ };
+ };
+
leds {
bootph-all;
status-led-red {
diff --git a/configs/iot2050_defconfig b/configs/iot2050_defconfig
index 2624f0cb573..574e232d119 100644
--- a/configs/iot2050_defconfig
+++ b/configs/iot2050_defconfig
@@ -141,6 +141,7 @@ CONFIG_SOC_TI=y
CONFIG_SPI=y
CONFIG_DM_SPI=y
CONFIG_CADENCE_QSPI=y
+CONFIG_SYSINFO=y
CONFIG_SYSRESET=y
CONFIG_SPL_SYSRESET=y
CONFIG_SYSRESET_TI_SCI=y
diff --git a/drivers/sysinfo/Kconfig b/drivers/sysinfo/Kconfig
index 2030e4babc9..df83df69ffb 100644
--- a/drivers/sysinfo/Kconfig
+++ b/drivers/sysinfo/Kconfig
@@ -31,6 +31,13 @@ config SYSINFO_RCAR3
help
Support querying SoC version information for Renesas R-Car Gen3.
+config SYSINFO_IOT2050
+ bool "Enable sysinfo driver for the Siemens IOT2050"
+ depends on TARGET_IOT2050_A53
+ default y if TARGET_IOT2050_A53
+ help
+ Support querying device information for Siemens IOT2050.
+
config SYSINFO_SANDBOX
bool "Enable sysinfo driver for the Sandbox board"
help
diff --git a/drivers/sysinfo/Makefile b/drivers/sysinfo/Makefile
index 680dde77fe8..26ca3150999 100644
--- a/drivers/sysinfo/Makefile
+++ b/drivers/sysinfo/Makefile
@@ -5,6 +5,7 @@
obj-y += sysinfo-uclass.o
obj-$(CONFIG_SYSINFO_GAZERBEAM) += gazerbeam.o
obj-$(CONFIG_SYSINFO_GPIO) += gpio.o
+obj-$(CONFIG_SYSINFO_IOT2050) += iot2050.o
obj-$(CONFIG_SYSINFO_RCAR3) += rcar3.o
obj-$(CONFIG_SYSINFO_SANDBOX) += sandbox.o
obj-$(CONFIG_SYSINFO_SMBIOS) += smbios.o
diff --git a/drivers/sysinfo/iot2050.c b/drivers/sysinfo/iot2050.c
new file mode 100644
index 00000000000..5359d6b8d62
--- /dev/null
+++ b/drivers/sysinfo/iot2050.c
@@ -0,0 +1,143 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) Siemens AG, 2024
+ */
+
+#include <dm.h>
+#include <sysinfo.h>
+#include <net.h>
+#include <asm/arch/hardware.h>
+
+#include "iot2050.h"
+
+#define IOT2050_INFO_MAGIC 0x20502050
+
+struct iot2050_info {
+ u32 magic;
+ u16 size;
+ char name[20 + 1];
+ char serial[16 + 1];
+ char mlfb[18 + 1];
+ char uuid[32 + 1];
+ char a5e[18 + 1];
+ u8 mac_addr_cnt;
+ u8 mac_addr[8][ARP_HLEN];
+ char seboot_version[40 + 1];
+ u8 padding[3];
+ u32 ddr_size_mb;
+} __packed;
+
+/**
+ * struct sysinfo_iot2050_priv - sysinfo private data
+ * @info: iot2050 board info
+ */
+struct sysinfo_iot2050_priv {
+ struct iot2050_info *info;
+};
+
+static int sysinfo_iot2050_detect(struct udevice *dev)
+{
+ struct sysinfo_iot2050_priv *priv = dev_get_priv(dev);
+
+ if (priv->info == NULL || priv->info->magic != IOT2050_INFO_MAGIC)
+ return -EFAULT;
+
+ return 0;
+}
+
+static int sysinfo_iot2050_get_str(struct udevice *dev, int id, size_t size,
+ char *val)
+{
+ struct sysinfo_iot2050_priv *priv = dev_get_priv(dev);
+ char byte_str[3] = {0};
+ unsigned int n;
+
+ switch (id) {
+ case BOARD_NAME:
+ strncpy(val, priv->info->name, size);
+ break;
+ case BOARD_SERIAL:
+ strncpy(val, priv->info->serial, size);
+ break;
+ case BOARD_MLFB:
+ strncpy(val, priv->info->mlfb, size);
+ break;
+ case BOARD_UUID:
+ for (n = 0; n < min(size, (size_t)16); n++) {
+ memcpy(byte_str, priv->info->uuid + n * 2, 2);
+ val[n] = (char)hextoul(byte_str, NULL);
+ }
+ break;
+ case BOARD_A5E:
+ strncpy(val, priv->info->a5e, size);
+ break;
+ case BOARD_SEBOOT_VER:
+ strncpy(val, priv->info->seboot_version, size);
+ break;
+ case BOARD_MAC_ADDR_1:
+ case BOARD_MAC_ADDR_2:
+ case BOARD_MAC_ADDR_3:
+ case BOARD_MAC_ADDR_4:
+ case BOARD_MAC_ADDR_5:
+ case BOARD_MAC_ADDR_6:
+ case BOARD_MAC_ADDR_7:
+ case BOARD_MAC_ADDR_8:
+ memcpy(val, priv->info->mac_addr[id - BOARD_MAC_ADDR_START],
+ ARP_HLEN);
+ return 0;
+ case BOARD_DDR_SIZE:
+ memcpy(val, &priv->info->ddr_size_mb,
+ sizeof(priv->info->ddr_size_mb));
+ return 0;
+ default:
+ return -EINVAL;
+ };
+
+ val[size - 1] = '\0';
+ return 0;
+}
+
+static int sysinfo_iot2050_get_int(struct udevice *dev, int id, int *val)
+{
+ struct sysinfo_iot2050_priv *priv = dev_get_priv(dev);
+
+ switch (id) {
+ case BOARD_MAC_ADDR_CNT:
+ *val = priv->info->mac_addr_cnt;
+ return 0;
+ default:
+ return -EINVAL;
+ };
+}
+
+static const struct sysinfo_ops sysinfo_iot2050_ops = {
+ .detect = sysinfo_iot2050_detect,
+ .get_str = sysinfo_iot2050_get_str,
+ .get_int = sysinfo_iot2050_get_int,
+};
+
+static int sysinfo_iot2050_probe(struct udevice *dev)
+{
+ struct sysinfo_iot2050_priv *priv = dev_get_priv(dev);
+ unsigned long offset;
+
+ offset = dev_read_u32_default(dev, "offset",
+ TI_SRAM_SCRATCH_BOARD_EEPROM_START);
+ priv->info = (struct iot2050_info *)offset;
+
+ return 0;
+}
+
+static const struct udevice_id sysinfo_iot2050_ids[] = {
+ { .compatible = "siemens,sysinfo-iot2050" },
+ { /* sentinel */ }
+};
+
+U_BOOT_DRIVER(sysinfo_iot2050) = {
+ .name = "sysinfo_iot2050",
+ .id = UCLASS_SYSINFO,
+ .of_match = sysinfo_iot2050_ids,
+ .ops = &sysinfo_iot2050_ops,
+ .priv_auto = sizeof(struct sysinfo_iot2050_priv),
+ .probe = sysinfo_iot2050_probe,
+};
diff --git a/drivers/sysinfo/iot2050.h b/drivers/sysinfo/iot2050.h
new file mode 100644
index 00000000000..f659a8282b5
--- /dev/null
+++ b/drivers/sysinfo/iot2050.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) Siemens AG, 2024
+ */
+
+#include <sysinfo.h>
+
+enum sysinfo_id_iot2050 {
+ BOARD_MLFB = SYSINFO_ID_SMBIOS_SYSTEM_VERSION,
+ BOARD_SERIAL = SYSINFO_ID_SMBIOS_SYSTEM_SERIAL,
+ BOARD_UUID = SYSINFO_ID_SMBIOS_SYSTEM_UUID,
+ BOARD_A5E = SYSINFO_ID_SMBIOS_BASEBOARD_PRODUCT,
+ BOARD_NAME = SYSINFO_ID_SMBIOS_BASEBOARD_VERSION,
+ BOARD_SEBOOT_VER = SYSINFO_ID_USER + 0,
+ BOARD_MAC_ADDR_CNT = SYSINFO_ID_USER + 1,
+ BOARD_MAC_ADDR_1 = SYSINFO_ID_USER + 2,
+ BOARD_MAC_ADDR_START = BOARD_MAC_ADDR_1,
+ BOARD_MAC_ADDR_2 = SYSINFO_ID_USER + 3,
+ BOARD_MAC_ADDR_3 = SYSINFO_ID_USER + 4,
+ BOARD_MAC_ADDR_4 = SYSINFO_ID_USER + 5,
+ BOARD_MAC_ADDR_5 = SYSINFO_ID_USER + 6,
+ BOARD_MAC_ADDR_6 = SYSINFO_ID_USER + 7,
+ BOARD_MAC_ADDR_7 = SYSINFO_ID_USER + 8,
+ BOARD_MAC_ADDR_8 = SYSINFO_ID_USER + 9,
+ BOARD_DDR_SIZE = SYSINFO_ID_USER + 10,
+};
--
2.43.0
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