Hi Marek,
On Sun, 4 Jul 2021 at 13:35, Marek Vasut marek.vasut@gmail.com wrote:
The Renesas R-Car Gen3 development kits contain board ID EEPROM. This driver parses out the board ID and revision out of that EEPROM and exports it e.g. for the board-info print on boot.
Signed-off-by: Marek Vasut marek.vasut+renesas@gmail.com Cc: Sean Anderson sean.anderson@seco.com Cc: Simon Glass sjg@chromium.org
drivers/sysinfo/Kconfig | 7 ++ drivers/sysinfo/Makefile | 1 + drivers/sysinfo/rcar3.c | 197 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 205 insertions(+) create mode 100644 drivers/sysinfo/rcar3.c
Reviewed-by: Simon Glass sjg@chromium.org
diff --git a/drivers/sysinfo/Kconfig b/drivers/sysinfo/Kconfig index 381dcd8844..e35f7cb179 100644 --- a/drivers/sysinfo/Kconfig +++ b/drivers/sysinfo/Kconfig @@ -17,6 +17,13 @@ config SYSINFO_GAZERBEAM help Support querying device information for the gdsys Gazerbeam board.
+config SYSINFO_RCAR3
bool "Enable sysinfo driver for the Renesas R-Car Gen3"depends on RCAR_GEN3 && I2C_EEPROMdefault y if RCAR_GEN3helpSupport querying SoC version information for Renesas R-Car Gen3.config SYSINFO_SANDBOX bool "Enable sysinfo driver for the Sandbox board" help diff --git a/drivers/sysinfo/Makefile b/drivers/sysinfo/Makefile index d9f708b7ea..680dde77fe 100644 --- a/drivers/sysinfo/Makefile +++ b/drivers/sysinfo/Makefile @@ -5,5 +5,6 @@ obj-y += sysinfo-uclass.o obj-$(CONFIG_SYSINFO_GAZERBEAM) += gazerbeam.o obj-$(CONFIG_SYSINFO_GPIO) += gpio.o +obj-$(CONFIG_SYSINFO_RCAR3) += rcar3.o obj-$(CONFIG_SYSINFO_SANDBOX) += sandbox.o obj-$(CONFIG_SYSINFO_SMBIOS) += smbios.o diff --git a/drivers/sysinfo/rcar3.c b/drivers/sysinfo/rcar3.c new file mode 100644 index 0000000000..c2f4ddfbbe --- /dev/null +++ b/drivers/sysinfo/rcar3.c @@ -0,0 +1,197 @@ +// SPDX-License-Identifier: GPL-2.0+ +/*
- Copyright (C) 2021 Marek Vasut marek.vasut+renesas@gmail.com
- */
+#include <common.h> +#include <dm.h> +#include <i2c_eeprom.h> +#include <log.h> +#include <sysinfo.h>
+#define BOARD_CODE_MASK 0xF8 +#define BOARD_REV_MASK 0x07 +#define BOARD_CODE_SHIFT 0x03
+#define BOARD_SALVATOR_X 0x0 +#define BOARD_KRIEK 0x1 +#define BOARD_STARTER_KIT 0x2 +#define BOARD_SALVATOR_XS 0x4 +#define BOARD_EBISU 0x8 +#define BOARD_STARTER_KIT_PRE 0xB +#define BOARD_EBISU_4D 0xD +#define BOARD_DRAAK 0xE +#define BOARD_EAGLE 0xF
+/**
- struct sysinfo_rcar_priv - sysinfo private data
- @boardname: board model and revision
- @val: board ID value from eeprom
- */
+struct sysinfo_rcar_priv {
char boardmodel[64];u8 val;+};
+static int sysinfo_rcar_detect(struct udevice *dev) +{
struct sysinfo_rcar_priv *priv = dev_get_priv(dev);return priv->val == 0xff;+}
+static int sysinfo_rcar_get_str(struct udevice *dev, int id, size_t size, char *val) +{
struct sysinfo_rcar_priv *priv = dev_get_priv(dev);switch (id) {case SYSINFO_ID_BOARD_MODEL:strncpy(val, priv->boardmodel, size);val[size - 1] = '\0';
strlcpy()
[...\
You might consider using
return log_msg_ret("xxx", ret)
for errors.
Regards, Simon