Hi Peng and Stefano
Unfortunately, this seems to break Ethernet on Colibri iMX8X:
=> dhcp "Error" handler, esr 0xbf000002 elr: 0000000080049664 lr : 000000008004964c (reloc) elr: 00000000ffef6664 lr : 00000000ffef664c x0 : 000000005b040288 x1 : 0000000000000001 x2 : 00000000fd6c5ff4 x3 : 0000000000000020 x4 : 00000000fd6c5ff0 x5 : 0000000000000020 x6 : 00000000ffef079c x7 : 00000000fd6f1600 x8 : 0000000000000044 x9 : 0000000000000008 x10: 00000000fd6d1620 x11: 00000000fd6d3a10 x12: 0000000000000000 x13: 0000000000000200 x14: 00000000fd6c62cc x15: 0000000000000002 x16: 0000000000002080 x17: 0000000000000000 x18: 00000000fd6cada8 x19: 00000000fd6d1160 x20: 0000000000000200 x21: 000000005b040300 x22: 00000000fd6f1000 x23: 00000000fd6cfdf0 x24: 00000000ffff8000 x25: 0000000000000000 x26: 0000000000000000 x27: 0000000000000000 x28: 00000000fd6d15c0 x29: 00000000fd6c6030
Resetting CPU ...
resetting ...
Reverting commit 5955c6eeb453 ("imx: add lowlevel init for ARM64") makes it work again.
Unfortunately, I don't have a MEK in my home office but will check Ethernet operation there on Monday as well.
Anyway, does anybody know what exactly is going on?
Cheers
Marcel
On Mon, 2019-04-15 at 05:20 +0000, Peng Fan wrote:
Sometimes we met SERROR, but only to catch it when Linux boots up. Let's enable catching in U-Boot to catch it ealier and ease debug.
Signed-off-by: Peng Fan peng.fan@nxp.com
arch/arm/mach-imx/Makefile | 2 +- arch/arm/mach-imx/lowlevel.S | 22 ++++++++++++++++++++++ 2 files changed, 23 insertions(+), 1 deletion(-) create mode 100644 arch/arm/mach-imx/lowlevel.S
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile index c3ed62aed6..37675d0558 100644 --- a/arch/arm/mach-imx/Makefile +++ b/arch/arm/mach-imx/Makefile @@ -204,7 +204,7 @@ endif
targets += $(addprefix ../../../,SPL spl/u-boot-spl.cfgout u-boot- dtb.cfgout u-boot.cfgout u-boot.uim spl/u-boot-nand-spl.imx)
-obj-$(CONFIG_ARM64) += sip.o +obj-$(CONFIG_ARM64) += lowlevel.o sip.o
obj-$(CONFIG_MX5) += mx5/ obj-$(CONFIG_MX6) += mx6/ diff --git a/arch/arm/mach-imx/lowlevel.S b/arch/arm/mach- imx/lowlevel.S new file mode 100644 index 0000000000..158fdb7d87 --- /dev/null +++ b/arch/arm/mach-imx/lowlevel.S @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/*
- Copyright 2019 NXP
- */
+#include <linux/linkage.h>
+ENTRY(lowlevel_init)
- mrs x0, CurrentEL
- cmp x0, #8
- b.eq 1f
- ret
+1:
- msr daifclr, #4
- /* set HCR_EL2.AMO to catch SERROR */
- mrs x0, hcr_el2
- orr x0, x0, #0x20
- msr hcr_el2, x0
- isb
- ret
+ENDPROC(lowlevel_init)
2.16.4
U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot