U-Boot "error binding CAAM driver" on i.MX 6SX

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U-Boot "error binding CAAM driver" on i.MX 6SX

2,079件の閲覧回数
kanimozhi_t
Contributor V

Hi,

 

We're using i.MX 6SX based custom board with QSPI boot medium with U-Boot 2021.04. While enabling HAB support (CONFIG_IMX_HAB), booting stops abruptly.

hab-caam-jr-error.png

 

 The detailed error message is as follows:

U-Boot 2021.04-20220224+g83a8c869aa (Feb 24 2022 - 09:15:35 +0000)

CPU: i.MX6SX rev1.3 996 MHz (running at 792 MHz)
CPU: Extended Commercial temperature grade (-20C to 105C) at 53C
Reset cause: POR
DRAM: 1 GiB

bind node caam@2100000
- attempt to match compatible string 'fsl,sec-v4.0'
- found match at 'caam_jr': 'fsl,sec-v4.0' matches 'fsl,sec-v4.0'
Error binding driver 'caam_jr': -96
caam@2100000: ret=-96

bind node aips-bus@2200000
- attempt to match compatible string 'fsl,aips-bus'
- attempt to match compatible string 'simple-bus'
- found match at 'simple_bus': 'simple-bus' matches 'simple-bus'
bind node spba-bus@2240000
- attempt to match compatible string 'fsl,spba-bus'
- attempt to match compatible string 'simple-bus'
- found match at 'simple_bus': 'simple-bus' matches 'simple-bus'
bind node pcie@8ffc000
- attempt to match compatible string 'fsl,imx6sx-pcie'
- found match at 'imx_pcie': 'fsl,imx6q-pcie' matches 'fsl,imx6sx-pcie'
Some drivers failed to bind
Error binding driver 'simple_bus': -96
soc: ret=-96

Some drivers failed to bind

dm_scan_fdt() failed: -96
dm_extended_scan() failed: -96
dm_scan() failed: -96

initcall sequence bffa5ca0 failed at call 878138c9 (err=-96)

### ERROR ### Please RESET the board ###

Any help with this would be grateful. Thank in advance.

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1,437件の閲覧回数
eino
Contributor I

I managed to solve this issue by studying the changes made in this commit https://source.codeaurora.org/external/imx/uboot-imx/commit/?id=41a325b1e324160b6be96ff54083b655a292...

For my target HW called prototype (imx8mn based) I had to make these changes:

diff --git a/arch/arm/mach-imx/imx8m/Kconfig b/arch/arm/mach-imx/imx8m/Kconfig
index 9a733ae0d4..0460349dce 100644
--- a/arch/arm/mach-imx/imx8m/Kconfig
+++ b/arch/arm/mach-imx/imx8m/Kconfig
@@ -253,6 +253,10 @@ config TARGET_PROTOTYPE
        select IMX8MN
        select SUPPORT_SPL
        select IMX8M_LPDDR4
+       select FSL_CAAM
+       select FSL_BLOB
+       select MISC
+       select SPL_CRYPTO_SUPPORT if SPL
 
 config TARGET_PHYCORE_IMX8MM
        bool "PHYTEC PHYCORE i.MX8MM"
diff --git a/board/freescale/prototype/spl.c b/board/freescale/prototype/spl.c
index b5c7f2ad3f..95a904842b 100644
--- a/board/freescale/prototype/spl.c
+++ b/board/freescale/prototype/spl.c
@@ -219,6 +219,14 @@ int power_init_board(void)
 
 void spl_board_init(void)
 {
+       struct udevice *dev;
+       uclass_find_first_device(UCLASS_MISC, &dev);
+
+       for (; dev; uclass_find_next_device(&dev)) {
+               if (device_probe(dev))
+                       continue;
+       }
+
        puts("Normal Boot\n");
 }

 

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2,043件の閲覧回数
kanimozhi_t
Contributor V

Further debugging revealed more details as follows:

bind node caam@2100000
- attempt to match compatible string 'fsl,sec-v4.0'
- found match at 'caam_jr': 'fsl,sec-v4.0' matches 'fsl,sec-v4.0'
Cannot find uclass for id 54: please add the UCLASS_DRIVER() declaration for this UCLASS_... id
Missing uclass for driver caam_jr
Error binding driver 'caam_jr': -96
 

Also note the difference when grepping for "caam_jr" EVK vs custom board:

cb-imx-uboot-diff.png

Hoping these are helpful to debug & answer

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2,058件の閲覧回数
kanimozhi_t
Contributor V

@Yuri @jamesbone where can we refer the Error code -96 on U-Boot source? Is it specific to NXP processors? What does it imply?

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2,078件の閲覧回数
kanimozhi_t
Contributor V
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