[PATCH v2 03/14] tpm: Add a proper Kconfig option for crc8 in SPL

The current approach is a bit of a hack and only works for the tpm subsystem. Add a Kconfig so that crc8 can be enabled in SPL for other purposes.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v2: - Add an SPL dependency in the Kconfig
lib/Kconfig | 18 ++++++++++++++++++ lib/Makefile | 3 ++- 2 files changed, 20 insertions(+), 1 deletion(-)
diff --git a/lib/Kconfig b/lib/Kconfig index def36f275ce..36d3cf99c3c 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -422,6 +422,7 @@ config TPM config SPL_TPM bool "Trusted Platform Module (TPM) Support in SPL" depends on SPL_DM + imply SPL_CRC8 help This enables support for TPMs which can be used to provide security features for your board. The TPM can be connected via LPC or I2C @@ -617,6 +618,23 @@ config SPL_MD5 security applications, but it can be useful for providing a quick checksum of a block of data.
+config CRC8 + def_bool y + help + Enables CRC8 support in U-Boot. This is normally required. CRC8 is + a simple and fast checksumming algorithm which does a bytewise + checksum with feedback to produce an 8-bit result. The code is small + and it does not require a lookup table (unlike CRC32). + +config SPL_CRC8 + bool "Support CRC8 in SPL" + depends on SPL + help + Enables CRC8 support in SPL. This is not normally required. CRC8 is + a simple and fast checksumming algorithm which does a bytewise + checksum with feedback to produce an 8-bit result. The code is small + and it does not require a lookup table (unlike CRC32). + config CRC32 def_bool y help diff --git a/lib/Makefile b/lib/Makefile index d77b33e7f48..a282e40258c 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -57,12 +57,13 @@ endif
obj-$(CONFIG_$(SPL_TPL_)TPM) += tpm-common.o ifeq ($(CONFIG_$(SPL_TPL_)TPM),y) -obj-y += crc8.o obj-$(CONFIG_TPM) += tpm_api.o obj-$(CONFIG_TPM_V1) += tpm-v1.o obj-$(CONFIG_TPM_V2) += tpm-v2.o endif
+obj-$(CONFIG_$(SPL_TPL_)CRC8) += crc8.o + obj-y += crypto/
obj-$(CONFIG_$(SPL_TPL_)GENERATE_ACPI_TABLE) += acpi/

This board is useful for benchmarking overall U-Boot performance. Enable the bootstage feature so we get a report.
Since this returns to the boot rom before finishing executing board_init_r() in SPL, add a few bootstage calls so that we can collect timing from TPL.
For the stash region, use a portion of SRAM, 64KB below the stack top. This allows the TPL image to be up to nearly 120KB (it is typically about 64KB). SPL normally runs from SDRAM at 0, so can use the same stash region.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v2: - Drop unwanted debugging
arch/arm/mach-rockchip/tpl.c | 16 +++++++++++++--- configs/rockpro64-rk3399_defconfig | 8 ++++++++ 2 files changed, 21 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mach-rockchip/tpl.c b/arch/arm/mach-rockchip/tpl.c index ed46a9ad286..fdd0c592b3e 100644 --- a/arch/arm/mach-rockchip/tpl.c +++ b/arch/arm/mach-rockchip/tpl.c @@ -4,6 +4,7 @@ */
#include <common.h> +#include <bootstage.h> #include <debug_uart.h> #include <dm.h> #include <hang.h> @@ -70,15 +71,15 @@ void board_init_f(ulong dummy) U_BOOT_TIME ")\n"); #endif #endif + /* Init secure timer */ + rockchip_stimer_init(); + ret = spl_early_init(); if (ret) { debug("spl_early_init() failed: %d\n", ret); hang(); }
- /* Init secure timer */ - rockchip_stimer_init(); - /* Init ARM arch timer */ if (IS_ENABLED(CONFIG_SYS_ARCH_TIMER)) timer_init(); @@ -93,6 +94,15 @@ void board_init_f(ulong dummy) int board_return_to_bootrom(struct spl_image_info *spl_image, struct spl_boot_device *bootdev) { +#ifdef CONFIG_BOOTSTAGE_STASH + int ret; + + bootstage_mark_name(BOOTSTAGE_ID_END_TPL, "end tpl"); + ret = bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR, + CONFIG_BOOTSTAGE_STASH_SIZE); + if (ret) + debug("Failed to stash bootstage: err=%d\n", ret); +#endif back_to_bootrom(BROM_BOOT_NEXTSTAGE);
return 0; diff --git a/configs/rockpro64-rk3399_defconfig b/configs/rockpro64-rk3399_defconfig index 5b8d678f6bb..2f1ae156bd4 100644 --- a/configs/rockpro64-rk3399_defconfig +++ b/configs/rockpro64-rk3399_defconfig @@ -9,6 +9,7 @@ CONFIG_ENV_OFFSET=0x3F8000 CONFIG_DEFAULT_DEVICE_TREE="rk3399-rockpro64" CONFIG_ROCKCHIP_RK3399=y CONFIG_TARGET_ROCKPRO64_RK3399=y +CONFIG_BOOTSTAGE_STASH_ADDR=0xff8e0000 CONFIG_DEBUG_UART_BASE=0xFF1A0000 CONFIG_DEBUG_UART_CLOCK=24000000 CONFIG_SPL_SPI_FLASH_SUPPORT=y @@ -17,6 +18,12 @@ CONFIG_SYS_LOAD_ADDR=0x800800 CONFIG_DEBUG_UART=y CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x300000 +CONFIG_BOOTSTAGE=y +CONFIG_SPL_BOOTSTAGE=y +CONFIG_TPL_BOOTSTAGE=y +CONFIG_BOOTSTAGE_REPORT=y +CONFIG_SPL_BOOTSTAGE_RECORD_COUNT=10 +CONFIG_BOOTSTAGE_STASH=y CONFIG_USE_PREBOOT=y CONFIG_DEFAULT_FDT_FILE="rockchip/rk3399-rockpro64.dtb" CONFIG_DISPLAY_BOARDINFO_LATE=y @@ -40,6 +47,7 @@ CONFIG_CMD_PCI=y CONFIG_CMD_USB=y # CONFIG_CMD_SETEXPR is not set CONFIG_CMD_TIME=y +CONFIG_CMD_BOOTSTAGE=y CONFIG_SPL_OF_CONTROL=y CONFIG_OF_SPL_REMOVE_PROPS="pinctrl-0 pinctrl-names clock-names interrupt-parent assigned-clocks assigned-clock-rates assigned-clock-parents" CONFIG_ENV_IS_IN_SPI_FLASH=y

On Sat, 7 Jan 2023 at 14:57, Simon Glass sjg@chromium.org wrote:
This board is useful for benchmarking overall U-Boot performance. Enable the bootstage feature so we get a report.
Since this returns to the boot rom before finishing executing board_init_r() in SPL, add a few bootstage calls so that we can collect timing from TPL.
For the stash region, use a portion of SRAM, 64KB below the stack top. This allows the TPL image to be up to nearly 120KB (it is typically about 64KB). SPL normally runs from SDRAM at 0, so can use the same stash region.
Signed-off-by: Simon Glass sjg@chromium.org
Changes in v2:
- Drop unwanted debugging
arch/arm/mach-rockchip/tpl.c | 16 +++++++++++++--- configs/rockpro64-rk3399_defconfig | 8 ++++++++ 2 files changed, 21 insertions(+), 3 deletions(-)
Applied to u-boot-dm/next

On Sun, Jan 8, 2023, at 08:57, Simon Glass wrote:
This board is useful for benchmarking overall U-Boot performance. Enable the bootstage feature so we get a report.
Since this returns to the boot rom before finishing executing board_init_r() in SPL, add a few bootstage calls so that we can collect timing from TPL.
For the stash region, use a portion of SRAM, 64KB below the stack top. This allows the TPL image to be up to nearly 120KB (it is typically about 64KB). SPL normally runs from SDRAM at 0, so can use the same stash region.
Signed-off-by: Simon Glass sjg@chromium.org
diff --git a/configs/rockpro64-rk3399_defconfig b/configs/rockpro64-rk3399_defconfig index 5b8d678f6bb..2f1ae156bd4 100644 --- a/configs/rockpro64-rk3399_defconfig +++ b/configs/rockpro64-rk3399_defconfig @@ -9,6 +9,7 @@ CONFIG_ENV_OFFSET=0x3F8000 CONFIG_DEFAULT_DEVICE_TREE="rk3399-rockpro64" CONFIG_ROCKCHIP_RK3399=y CONFIG_TARGET_ROCKPRO64_RK3399=y +CONFIG_BOOTSTAGE_STASH_ADDR=0xff8e0000 CONFIG_DEBUG_UART_BASE=0xFF1A0000 CONFIG_DEBUG_UART_CLOCK=24000000 CONFIG_SPL_SPI_FLASH_SUPPORT=y @@ -17,6 +18,12 @@ CONFIG_SYS_LOAD_ADDR=0x800800 CONFIG_DEBUG_UART=y CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x300000 +CONFIG_BOOTSTAGE=y
Building from master commit a1e6b529e57c622e862e93fa6da03d9504565089 and copying u-boot-rockchip.bin to an SD card and booting from that on a RockPRO64 v2.1, I don't get past this: (dirty because building on NixOS applies some patches)
U-Boot TPL 2023.04-rc1-00483-ga1e6b529e5-dirty (Jan 01 1980 - 00:00:00) Channel 0: LPDDR4, 50MHz BW=32 Col=10 Bk=8 CS0 Row=16/15 CS=1 Die BW=16 Size=2048MB Channel 1: LPDDR4, 50MHz BW=32 Col=10 Bk=8 CS0 Row=16/15 CS=1 Die BW=16 Size=2048MB 256B stride lpddr4_set_rate: change freq to 800MHz 1, 0 Trying to boot from BOOTROM Returning to boot ROM...
U-Boot SPL 2023.04-rc1-00483-ga1e6b529e5-dirty (Jan 01 1980 - 00:00:00 +0000) Trying to boot from MMC2
I bisected down to this patch. If I disable CONFIG_BOOTSTATE, I can boot. Is there something I need to do to successfully boot with bootstate enabled?

Hi Andrew,
On Sat, 11 Feb 2023 at 16:29, Andrew Abbott andrew@mirx.dev wrote:
On Sun, Jan 8, 2023, at 08:57, Simon Glass wrote:
This board is useful for benchmarking overall U-Boot performance. Enable the bootstage feature so we get a report.
Since this returns to the boot rom before finishing executing board_init_r() in SPL, add a few bootstage calls so that we can collect timing from TPL.
For the stash region, use a portion of SRAM, 64KB below the stack top. This allows the TPL image to be up to nearly 120KB (it is typically about 64KB). SPL normally runs from SDRAM at 0, so can use the same stash region.
Signed-off-by: Simon Glass sjg@chromium.org
diff --git a/configs/rockpro64-rk3399_defconfig b/configs/rockpro64-rk3399_defconfig index 5b8d678f6bb..2f1ae156bd4 100644 --- a/configs/rockpro64-rk3399_defconfig +++ b/configs/rockpro64-rk3399_defconfig @@ -9,6 +9,7 @@ CONFIG_ENV_OFFSET=0x3F8000 CONFIG_DEFAULT_DEVICE_TREE="rk3399-rockpro64" CONFIG_ROCKCHIP_RK3399=y CONFIG_TARGET_ROCKPRO64_RK3399=y +CONFIG_BOOTSTAGE_STASH_ADDR=0xff8e0000 CONFIG_DEBUG_UART_BASE=0xFF1A0000 CONFIG_DEBUG_UART_CLOCK=24000000 CONFIG_SPL_SPI_FLASH_SUPPORT=y @@ -17,6 +18,12 @@ CONFIG_SYS_LOAD_ADDR=0x800800 CONFIG_DEBUG_UART=y CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x300000 +CONFIG_BOOTSTAGE=y
Building from master commit a1e6b529e57c622e862e93fa6da03d9504565089 and copying u-boot-rockchip.bin to an SD card and booting from that on a RockPRO64 v2.1, I don't get past this: (dirty because building on NixOS applies some patches)
U-Boot TPL 2023.04-rc1-00483-ga1e6b529e5-dirty (Jan 01 1980 - 00:00:00) Channel 0: LPDDR4, 50MHz BW=32 Col=10 Bk=8 CS0 Row=16/15 CS=1 Die BW=16 Size=2048MB Channel 1: LPDDR4, 50MHz BW=32 Col=10 Bk=8 CS0 Row=16/15 CS=1 Die BW=16 Size=2048MB 256B stride lpddr4_set_rate: change freq to 800MHz 1, 0 Trying to boot from BOOTROM Returning to boot ROM...
U-Boot SPL 2023.04-rc1-00483-ga1e6b529e5-dirty (Jan 01 1980 - 00:00:00 +0000) Trying to boot from MMC2
I bisected down to this patch. If I disable CONFIG_BOOTSTATE, I can boot. Is there something I need to do to successfully boot with bootstate enabled?
I'm not sure what happened here, but there may have been some timer changes that went in at the same time. I will take a look.
Regards, Sim on

On Sat, 7 Jan 2023 at 14:57, Simon Glass sjg@chromium.org wrote:
The current approach is a bit of a hack and only works for the tpm subsystem. Add a Kconfig so that crc8 can be enabled in SPL for other purposes.
Signed-off-by: Simon Glass sjg@chromium.org
Changes in v2:
- Add an SPL dependency in the Kconfig
lib/Kconfig | 18 ++++++++++++++++++ lib/Makefile | 3 ++- 2 files changed, 20 insertions(+), 1 deletion(-)
Applied to u-boot-dm/next
participants (2)
-
Andrew Abbott
-
Simon Glass