Hi @haidong_zheng
customer is LGE-CTO
project is IFE (In Flight Entertainment)
silicon : i.MX8MQ
BSP : L5.4.70.
issue : customer met booting failure with suck at "starting kernel ...." log.
customer applied below patch and with ddr_timing.c from ddr stress tool.
with below patch + removed OPTEE ==> 4G booting is okay and also 4G memory seems to be okay on target board.
But, below patch + OPTEE , customer met booting failure with stuck at "starting kernel.."
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diff -urN a/arch/arm/dts/imx8mq-evk.dts b/arch/arm/dts/imx8mq-evk.dts
--- a/arch/arm/dts/imx8mq-evk.dts 2021-01-26 08:40:48.957563246 +0900
+++ b/arch/arm/dts/imx8mq-evk.dts 2021-01-26 08:45:05.274299618 +0900
@@ -29,7 +29,8 @@
memory@40000000 {
device_type = "memory";
- reg = <0x00000000 0x40000000 0 0xc0000000>;
+ reg = <0x0 0x40000000 0 0xc0000000>,
+ <0x1 0x00000000 0 0x40000000>;
};
pcie0_refclk: pcie0-refclk {
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- config.h ‘s 4G
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diff -urN a/configs/imx8mq_evk_defconfig b/configs/imx8mq_evk_defconfig
--- a/configs/imx8mq_evk_defconfig 2021-01-25 10:51:45.397639290 +0900
+++ b/configs/imx8mq_evk_defconfig 2021-01-25 11:31:02.699624338 +0900
@@ -17,6 +17,7 @@
CONFIG_ARCH_MISC_INIT=y
CONFIG_SPL_MMC_SUPPORT=y
CONFIG_SPL_SERIAL_SUPPORT=y
+CONFIG_NR_DRAM_BANKS=2
CONFIG_SPL_DRIVERS_MISC_SUPPORT=y
CONFIG_SPL=y
CONFIG_CSF_SIZE=0x2000
diff -urN a/include/configs/imx8mq_evk.h b/include/configs/imx8mq_evk.h
--- a/include/configs/imx8mq_evk.h 2021-01-25 10:51:45.489638119 +0900
+++ b/include/configs/imx8mq_evk.h 2021-01-25 11:31:02.783623269 +0900
@@ -171,7 +171,10 @@
#define CONFIG_SYS_SDRAM_BASE 0x40000000
#define PHYS_SDRAM 0x40000000
-#define PHYS_SDRAM_SIZE 0xC0000000 /* 3GB DDR */
+#define PHYS_SDRAM_SIZE 0xc0000000 /* 3GB */
+#define PHYS_SDRAM_2 0x100000000
+#define PHYS_SDRAM_2_SIZE 0x40000000 /* */
+
below is bdinfo with booting failure. i am not sure but does below glue text address is as below. it is for your reference.
u-boot=> bdinfo
arch_number = 0x0000000000000000
boot_params = 0x0000000000000000
DRAM bank = 0x0000000000000000
-> start = 0x0000000040000000
-> size = 0x00000000be000000
DRAM bank = 0x0000000000000001
-> start = 0x0000000100000000
-> size = 0x0000000040000000
baudrate = 115200 bps
TLB addr = 0x00000000fdff0000
relocaddr = 0x00000000fd725000
reloc off = 0x00000000bd525000
irq_sp = 0x00000000fd11c490
sp start = 0x00000000fd11c490
FB base = 0x0000000000000000
Early malloc usage: ae8 / 2000
fdt_blob = 0x00000000fd11c4a8
u-boot=>
Could you please check this issue and help me to find any clue?
Thank you
BRs
jessie
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