On 2021/7/8 17:15, Michael Nazzareno Trimarchi wrote:
Hi Peng
On Thu, Jul 8, 2021 at 9:12 AM Peng Fan (OSS) <peng....@oss.nxp.com> wrote:
On 2021/7/4 1:24, Michael Nazzareno Trimarchi wrote:
Hi all
I have some problems that I have understood and fixed but I can not
explain. Right now I have on imx8mn that can boot from boot0 or boot1
partition after remove
a condition in the is_boot_from_stream_device
This is a boot from mmcblk0boot0 with some debug
U-Boot SPL 2020.04-5.4.70-2.3.2+gf3bcbdfc62 (Jul 03 2021 - 17:00:27 +0000)
power_bd71837_init
DDRINFO: start DRAM init
DDRINFO: DRAM rate 1600MTS
DDRINFO:ddrphy calibration done
DDRINFO: ddrmix config done
Normal Boot
Trying to boot from BOOTROM
ROM API interface 2 from boot 131073
Interface is 2 MMC and boot is 131073 and according to this
static int is_boot_from_stream_device(u32 boot)
+{
+ u32 interface;
+
+ interface = boot >> 16;
+ if (interface >= BT_DEV_TYPE_USB)
+ return 1;
+
+ if (interface == BT_DEV_TYPE_MMC && (boot & 1))
+ return 1;
+
+ return 0;
+}
means a stream interface but it does not boot.
Boot from boot1 give 131072 that is boot1 this let device boot because
Who gives 131073? Boot from boot1, you mean emmc boot partition0?
is_boot_from_stream_device is 0 and
romapi use spl_romapi_load_image_seekable
Remove boot & 1 condition let me boot from mmcblk0boot0 and
mmcblk0boot1 without any problem
Have you enabled emmc fastboot in fuse?
boot & 1 is checking emmc fastboot. emmc fastboot mode is actually
stream device. If fastboot mode enabled, you need burn your
flash.bin into offset 0. Not 32KB offset.
The offset is correct and the spl is starting on boot0 but then it
should load the rest from
boot0 block and not from usb. And why in case of boot1 the 1 is not
present. I flash both
on offset 0. Anyway I sent a patch
I suspect you have eMMC fastboot enabled for boot0, but not for boot1.
Regards,
Peng.
Michael
Regards,
Peng.
mmc partconf 0
EXT_CSD[179], PARTITION_CONFIG:
BOOT_ACK: 0x0
BOOT_PARTITION_ENABLE: 0x1
PARTITION_ACCESS: 0x0
and the board was fused already.
Any idea why?
Michael
