Hi,
On 02/27/2015 12:59 AM, Nathan wrote:
I think I've been able to narrow down, a bit, where the issue is coming from.
"mmc_set_blocklen" led me to "mmc_send_cmd" which showed that there is
the "CONFIG_MMC_TRACE" I could use.
A notable difference between hardkernel's u-boot and mainline was the
"uint flags;" was no longer in the "mmc_cmd" struct.
I did see that this removal was noted as being a problem back in 2012:
http://lists.denx.de/pipermail/u-boot/2012-September/133409.html
The result from "saveenv":
This is too late for debug. The same result I can see when my card is
not inserted.
Odroid # saveenv
Saving Environment to MMC...
Writing to MMC(0)... CMD_SEND:16
ARG 0x00000200
ret: -19
MMC_RSP_R1,5,6,7 0x00000000
I added the "printf" for "ret".
You should follow the card init sequence with the trace config, because
it fails at init. This is the trace output from init sequence of my SD card:
MMC: SAMSUNG SDHCI: 0, EXYNOS DWMMC: 1
CMD_SEND:0
ARG 0x00000000
MMC_RSP_NONE
CMD_SEND:8
ARG 0x000001AA
MMC_RSP_R1,5,6,7 0x000001AA
CMD_SEND:55
ARG 0x00000000
MMC_RSP_R1,5,6,7 0x00000120
CMD_SEND:41
ARG 0x40300000
MMC_RSP_R3,4 0x40FF8000
CMD_SEND:55
ARG 0x00000000
MMC_RSP_R1,5,6,7 0x00000120
CMD_SEND:41
ARG 0x40300000
MMC_RSP_R3,4 0x40FF8000
CMD_SEND:55
ARG 0x00000000
MMC_RSP_R1,5,6,7 0x00000120
CMD_SEND:41
ARG 0x40300000
MMC_RSP_R3,4 0xC0FF8000
CMD_SEND:2
ARG 0x00000000
MMC_RSP_R2 0x03534453
0x55303447
0x80273727
0x6900E700
DUMPING DATA
000 - 03 53 44 53
004 - 55 30 34 47
008 - 80 27 37 27
012 - 69 00 E7 00
CMD_SEND:3
ARG 0x00000000
MMC_RSP_R1,5,6,7 0xAAAA0520
CMD_SEND:9
ARG 0xAAAA0000
MMC_RSP_R2 0x400E0032
0x5B590000
0x1D8A7F80
0x0A404000
DUMPING DATA
000 - 40 0E 00 32
004 - 5B 59 00 00
008 - 1D 8A 7F 80
012 - 0A 40 40 00
CMD_SEND:13
ARG 0xAAAA0000
MMC_RSP_R1,5,6,7 0x00000700
CURR STATE:3
CMD_SEND:7
ARG 0xAAAA0000
MMC_RSP_R1,5,6,7 0x00000700
CMD_SEND:55
ARG 0xAAAA0000
MMC_RSP_R1,5,6,7 0x00000920
CMD_SEND:51
ARG 0x00000000
MMC_RSP_R1,5,6,7 0x00000920
CMD_SEND:6
ARG 0x00FFFFF1
MMC_RSP_R1,5,6,7 0x00000900
CMD_SEND:6
ARG 0x80FFFFF1
MMC_RSP_R1,5,6,7 0x00000900
CMD_SEND:55
ARG 0xAAAA0000
MMC_RSP_R1,5,6,7 0x00000920
CMD_SEND:6
ARG 0x00000002
MMC_RSP_R1,5,6,7 0x00000920
CMD_SEND:16
ARG 0x00000200
MMC_RSP_R1,5,6,7 0x00000900
CMD_SEND:17
ARG 0x00000000
MMC_RSP_R1,5,6,7 0x00000900
CMD_SEND:16
ARG 0x00000200
MMC_RSP_R1,5,6,7 0x00000900
CMD_SEND:17
ARG 0x00000000
MMC_RSP_R1,5,6,7 0x00000900
CMD_SEND:16
ARG 0x00000200
MMC_RSP_R1,5,6,7 0x00000900
CMD_SEND:18
ARG 0x00000A00
MMC_RSP_R1,5,6,7 0x00000900
CMD_SEND:12
ARG 0x00000000
MMC_RSP_R1b 0x00000900
I hope this will help you to solve this issue.
Best regards,
--
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marc...@samsung.com
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
