| Message ID | CA+AFOO7ziAjG47a615dsJ6p7V_DF084-s+BbR9Sb+Qnt=H6TQw@mail.gmail.com |
|---|---|
| State | RFC |
| Delegated to: | Zoltan HERPAI |
| Headers | show |
Hi, Derek On 3 September 2015 at 19:14, Derek Werthmuller <thewerthfam@gmail.com> wrote: > Over the past week since the kernel version moved to the 4.x series, new > built images are not bootable. With the serial console connected it seems > that its not completing Uboot properly. This is the only output. > U-Boot SPL 2015.07 (Sep 02 2015 - 20:52:15) > DRAM: 1024 MiB > CPU: 912000000Hz, AXI/AHB/APB: 3/2/2 > > The following ticket seems to have a patch for it. > https://dev.openwrt.org/ticket/20387 > There are actually 2 issues reported in that ticket. I already posted a patch for one of them. Looks like it's going to be accepted [1]. As for the other issue, I cannot work out a proper fix at the moment (not in the near future). The patch I posted in that ticket is only for a memo of what's going wrong. Anyway, even it got pass uboot stage, the Linux kernel still cannot initialise it :( [1] http://thread.gmane.org/gmane.comp.hardware.netbook.arm.sunxi/18370 > I've created a diff patch from this patch to patch the mmc.c in the uboot > code, but I don't know where in the patch tree the uboot patches go, so I > can't test the patch. Following is the patch. > I have not tested this patch. > You can find where to patches for uboot-sunxi from link [2]. But it seems like your situation is a bit different (it just hangs there without any error message). Better have a test. [2] http://patchwork.ozlabs.org/patch/512163/ yousong > --- ./a/drivers/mmc/mmc.c 2015-09-02 20:48:01.877739304 -0400 > +++ ./b/drivers/mmc/mmc.c 2015-09-02 20:51:33.131214983 -0400 > @@ -920,8 +920,10 @@ > err = sd_switch(mmc, SD_SWITCH_CHECK, 0, 1, > (u8 *)switch_status); > > - if (err) > - return err; > + if (err) { > + printf("unable to switch SD_HIGHSPEED: %d\n", err); > + return 0; > + } > > /* The high-speed function is busy. Try again */ > if (!(__be32_to_cpu(switch_status[7]) & SD_HIGHSPEED_BUSY)) > > Cheers > Derek > > _______________________________________________ > openwrt-devel mailing list > openwrt-devel@lists.openwrt.org > https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel >
--- ./a/drivers/mmc/mmc.c 2015-09-02 20:48:01.877739304 -0400 +++ ./b/drivers/mmc/mmc.c 2015-09-02 20:51:33.131214983 -0400 @@ -920,8 +920,10 @@ err = sd_switch(mmc, SD_SWITCH_CHECK, 0, 1, (u8 *)switch_status); - if (err) - return err; + if (err) { + printf("unable to switch SD_HIGHSPEED: %d\n", err); + return 0; + } /* The high-speed function is busy. Try again */ if (!(__be32_to_cpu(switch_status[7]) & SD_HIGHSPEED_BUSY))