Implement checkboard() function to display
- the boot chain used: basic or trusted
- the board compatible in device tree
- the board identifier and revision, saved in OTP59 for ST boards
Signed-off-by: Patrick Delaunay <patrick.delau...@st.com>
---
Changes in v4: None
Changes in v3: None
Changes in v2: None
arch/arm/mach-stm32mp/include/mach/stm32.h | 4 +++
board/st/stm32mp1/stm32mp1.c | 44 ++++++++++++++++++++++++++++--
2 files changed, 46 insertions(+), 2 deletions(-)
diff --git a/arch/arm/mach-stm32mp/include/mach/stm32.h
b/arch/arm/mach-stm32mp/include/mach/stm32.h
index 5d0bdca..85d783c 100644
--- a/arch/arm/mach-stm32mp/include/mach/stm32.h
+++ b/arch/arm/mach-stm32mp/include/mach/stm32.h
@@ -98,7 +98,11 @@ enum boot_device {
/* offset used for BSEC driver: misc_read and misc_write */
#define STM32_BSEC_SHADOW_OFFSET 0x0
+#define STM32_BSEC_SHADOW(id) (STM32_BSEC_SHADOW_OFFSET + (id) * 4)
#define STM32_BSEC_OTP_OFFSET 0x80000000
+#define STM32_BSEC_OTP(id) (STM32_BSEC_OTP_OFFSET + (id) * 4)
+
+#define BSEC_OTP_BOARD 59
#endif /* __ASSEMBLY__*/
#endif /* _MACH_STM32_H_ */
diff --git a/board/st/stm32mp1/stm32mp1.c b/board/st/stm32mp1/stm32mp1.c
index 54feca0..07d1add 100644
--- a/board/st/stm32mp1/stm32mp1.c
+++ b/board/st/stm32mp1/stm32mp1.c
@@ -3,11 +3,12 @@
* Copyright (C) 2018, STMicroelectronics - All Rights Reserved
*/
#include <config.h>
-#include <common.h>
-#include <led.h>
#include <clk.h>
+#include <common.h>
#include <dm.h>
#include <generic-phy.h>
+#include <led.h>
+#include <misc.h>
#include <phy.h>
#include <reset.h>
#include <usb.h>
@@ -26,6 +27,45 @@ DECLARE_GLOBAL_DATA_PTR;
#define STM32MP_GGPIO 0x38
#define STM32MP_GGPIO_VBUS_SENSING BIT(21)
+int checkboard(void)
+{
+ int ret;
+ char *mode;
+ u32 otp;
+ struct udevice *dev;
+ const char *fdt_compat;
+ int fdt_compat_len;
+
+ if (IS_ENABLED(CONFIG_STM32MP1_TRUSTED))
+ mode = "trusted";
+ else
+ mode = "basic";
+
+ printf("Board: stm32mp1 in %s mode", mode);
+ fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible",
+ &fdt_compat_len);
+ if (fdt_compat && fdt_compat_len)
+ printf(" (%s)", fdt_compat);
+ puts("\n");
+
+ ret = uclass_get_device_by_driver(UCLASS_MISC,
+ DM_GET_DRIVER(stm32mp_bsec),
+ &dev);
+
+ if (!ret)
+ ret = misc_read(dev, STM32_BSEC_SHADOW(BSEC_OTP_BOARD),
+ &otp, sizeof(otp));
+ if (!ret && otp) {
+ printf("Board: MB%04x Var%d Rev.%c-%02d\n",
+ otp >> 16,
+ (otp >> 12) & 0xF,
+ ((otp >> 8) & 0xF) - 1 + 'A',
+ otp & 0xF);
+ }
+
+ return 0;
+}
+
static struct dwc2_plat_otg_data stm32mp_otg_data = {
.usb_gusbcfg = STM32MP_GUSBCFG,
};
--
2.7.4
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
https://lists.denx.de/listinfo/u-boot
