On Wed, Jan 11, 2023 at 12:01:46AM +0100, Joost van Zwieten wrote:
>
>
> On Tue, Jan 10, 2023 at 13:41, Tom Rini <tr...@konsulko.com> wrote:
> > On Tue, Jan 10, 2023 at 09:13:32AM +0100, Joost van Zwieten wrote:
> >
> > > Dear maintainers,
> > >
> > > As of commit 4963f63fe61f15329d77472a762b1d8bf754d24b U-Boot fails
> > > to start
> > > a kernel (with `bootz`) on my Odroid U2 unless I force
> > > `initrd_high`, e.g.
> > > to `0x50000000`. With commit 4963f63f and `initrd_high` *unset* I
> > > get the
> > > following output:
> > >
> > > U-Boot 2020.10-rc2-00314-g4963f63fe6 (Jan 09 2023 - 23:59:31
> > > +0100)
> > >
> > > CPU: Exynos4412 @ 1 GHz
> > > Model: Odroid based on Exynos4412
> > > Type: u3
> > > DRAM: 2 GiB
> > > LDO20@VDDQ_EMMC_1.8V: set 1800000 uV; enabling
> > > LDO22@VDDQ_EMMC_2.8V: set 2800000 uV; enabling
> > > LDO21@TFLASH_2.8V: set 2800000 uV; enabling
> > > MMC: SAMSUNG SDHCI: 2, EXYNOS DWMMC: 0
> > > Loading Environment from MMC... *** Warning - bad CRC, using
> > > default
> > > environment
> > >
> > > In: serial
> > > Out: serial
> > > Err: serial
> > > Boot device: MMC(2)
> > > Net: No ethernet found.
> > > Hit any key to stop autoboot: 0
> > > Odroid # env set fk_kvers 5.10.0-20-armmp
> > > Odroid # load mmc ${mmcbootdev}:${mmcbootpart} ${fdt_addr_r}
> > > /boot/dtbs/${fk_kvers}/exynos4412-odroidu3.dtb
> > > 53440 bytes read in 50 ms (1 MiB/s)
> > > Odroid # load mmc ${mmcbootdev}:${mmcbootpart} ${kernel_addr_r}
> > > /boot/vmlinuz-${fk_kvers}
> > > 4973056 bytes read in 182 ms (26.1 MiB/s)
> > > Odroid # load mmc ${mmcbootdev}:${mmcbootpart} ${ramdisk_addr_r}
> > > /boot/initrd.img-${fk_kvers}
> > > 22231585 bytes read in 777 ms (27.3 MiB/s)
> > > Odroid # env set bootargs console=ttySAC1,115200n8
> > > Odroid # bootz ${kernel_addr_r} ${ramdisk_addr_r}:${filesize}
> > > ${fdt_addr_r}
> > > Kernel image @ 0x41000000 [ 0x000000 - 0x4be200 ]
> > > ## Flattened Device Tree blob at 40800000
> > > Booting using the fdt blob at 0x40800000
> > > Loading Ramdisk to b9947000, end bae7aa21 ... OK
> > > Loading Device Tree to b9936000, end b99460bf ... OK
> > >
> > > Starting kernel ...
> > >
> > > And that's all I ever see. Normally the initrd loads a module that
> > > causes an
> > > LED on the Odroid to blink, and this is not happening either, so
> > > I'm pretty
> > > confident the kernel doesn't start or at least crashes before
> > > producing
> > > output. If I set `initrd_high` to `0x50000000` (or something in the
> > > neighborhood) the kernel starts just fine:
> > >
> > > U-Boot 2020.10-rc2-00314-g4963f63fe6 (Jan 09 2023 - 23:59:31
> > > +0100)
> > >
> > > CPU: Exynos4412 @ 1 GHz
> > > Model: Odroid based on Exynos4412
> > > Type: u3
> > > DRAM: 2 GiB
> > > LDO20@VDDQ_EMMC_1.8V: set 1800000 uV; enabling
> > > LDO22@VDDQ_EMMC_2.8V: set 2800000 uV; enabling
> > > LDO21@TFLASH_2.8V: set 2800000 uV; enabling
> > > MMC: SAMSUNG SDHCI: 2, EXYNOS DWMMC: 0
> > > Loading Environment from MMC... *** Warning - bad CRC, using
> > > default
> > > environment
> > >
> > > In: serial
> > > Out: serial
> > > Err: serial
> > > Boot device: MMC(2)
> > > Net: No ethernet found.
> > > Hit any key to stop autoboot: 0
> > > Odroid # env set fk_kvers 5.10.0-20-armmp
> > > Odroid # load mmc ${mmcbootdev}:${mmcbootpart} ${fdt_addr_r}
> > > /boot/dtbs/${fk_kvers}/exynos4412-odroidu3.dtb
> > > 53440 bytes read in 49 ms (1 MiB/s)
> > > Odroid # load mmc ${mmcbootdev}:${mmcbootpart} ${kernel_addr_r}
> > > /boot/vmlinuz-${fk_kvers}
> > > 4973056 bytes read in 181 ms (26.2 MiB/s)
> > > Odroid # load mmc ${mmcbootdev}:${mmcbootpart} ${ramdisk_addr_r}
> > > /boot/initrd.img-${fk_kvers}
> > > 22231585 bytes read in 777 ms (27.3 MiB/s)
> > > Odroid # env set bootargs console=ttySAC1,115200n8
> > > Odroid # env set initrd_high 0x50000000
> > > Odroid # bootz ${kernel_addr_r} ${ramdisk_addr_r}:${filesize}
> > > ${fdt_addr_r}
> > > Kernel image @ 0x41000000 [ 0x000000 - 0x4be200 ]
> > > ## Flattened Device Tree blob at 40800000
> > > Booting using the fdt blob at 0x40800000
> > > Loading Ramdisk to 4eacc000, end 4ffffa21 ... OK
> > > Loading Device Tree to bae6a000, end bae7a0bf ... OK
> > >
> > > Starting kernel ...
> > >
> > > [ 0.000000] Booting Linux on physical CPU 0xa00
> > > <truncated>
> > >
> > > The difference between those two runs is the location where U-Boot
> > > loads the
> > > initrd. The parent commit of 4963f63f boots fine without setting
> > > `initrd_high`:
> > >
> > > U-Boot 2020.10-rc2-00313-gdfaf6a5797 (Jan 10 2023 - 00:13:19
> > > +0100)
> > >
> > > CPU: Exynos4412 @ 1 GHz
> > > Model: Odroid based on Exynos4412
> > > Type: u3
> > > DRAM: 2 GiB
> > > LDO20@VDDQ_EMMC_1.8V: set 1800000 uV; enabling
> > > LDO22@VDDQ_EMMC_2.8V: set 2800000 uV; enabling
> > > LDO21@TFLASH_2.8V: set 2800000 uV; enabling
> > > MMC: SAMSUNG SDHCI: 2, EXYNOS DWMMC: 0
> > > Loading Environment from MMC... *** Warning - bad CRC, using
> > > default
> > > environment
> > >
> > > In: serial
> > > Out: serial
> > > Err: serial
> > > Boot device: MMC(2)
> > > Net: No ethernet found.
> > > Hit any key to stop autoboot: 0
> > > Odroid # env set fk_kvers 5.10.0-20-armmp
> > > Odroid # load mmc ${mmcbootdev}:${mmcbootpart} ${fdt_addr_r}
> > > /boot/dtbs/${fk_kvers}/exynos4412-odroidu3.dtb
> > > 53440 bytes read in 49 ms (1 MiB/s)
> > > Odroid # load mmc ${mmcbootdev}:${mmcbootpart} ${kernel_addr_r}
> > > /boot/vmlinuz-${fk_kvers}
> > > 4973056 bytes read in 181 ms (26.2 MiB/s)
> > > Odroid # load mmc ${mmcbootdev}:${mmcbootpart} ${ramdisk_addr_r}
> > > /boot/initrd.img-${fk_kvers}
> > > 22231585 bytes read in 776 ms (27.3 MiB/s)
> > > Odroid # env set bootargs console=ttySAC1,115200n8
> > > Odroid # bootz ${kernel_addr_r} ${ramdisk_addr_r}:${filesize}
> > > ${fdt_addr_r}
> > > Kernel image @ 0x41000000 [ 0x000000 - 0x4be200 ]
> > > ## Flattened Device Tree blob at 40800000
> > > Booting using the fdt blob at 0x40800000
> > > Loading Ramdisk to 4eacc000, end 4ffffa21 ... OK
> > > Loading Device Tree to 4eabb000, end 4eacb0bf ... OK
> > >
> > > Starting kernel ...
> > >
> > > [ 0.000000] Booting Linux on physical CPU 0xa00
> > > <truncated>
> > >
> > > I've tested two different kernels from Debian (buster and bullseye)
> > > and both
> > > have the same problem. I'm building U-Boot using the default config
> > > for
> > > board `odroid` and boot the Odroid from an SD card with firmware
> > > (`bl1`,
> > > `bl2` and `tzsw`) from Hardkernel's clone of the u-boot repository
> > > [1].
> > > There are no peripherals connected apart from the SD card and the
> > > serial
> > > console. Please let me know if you need more information.
> >
> > Interesting. So what does "bdi" show, both in the older good and
> > then current tree? Specifically the information about where DRAM is, and
> > how large it is? Thanks.
> >
> > --
> > Tom
>
> Both 4963f63f (not working) and its parent (working) produce the same
> output:
>
> boot_params = 0x40000100
> DRAM bank = 0x00000000
> -> start = 0x40000000
> -> size = 0x10000000
> DRAM bank = 0x00000001
> -> start = 0x50000000
> -> size = 0x10000000
> DRAM bank = 0x00000002
> -> start = 0x60000000
> -> size = 0x10000000
> DRAM bank = 0x00000003
> -> start = 0x70000000
> -> size = 0x10000000
> DRAM bank = 0x00000004
> -> start = 0x80000000
> -> size = 0x10000000
> DRAM bank = 0x00000005
> -> start = 0x90000000
> -> size = 0x10000000
> DRAM bank = 0x00000006
> -> start = 0xa0000000
> -> size = 0x10000000
> DRAM bank = 0x00000007
> -> start = 0xb0000000
> -> size = 0x0ff00000
> memstart = 0x40000000
> memsize = 0x7ff00000
> flashstart = 0x00000000
> flashsize = 0x00000000
> flashoffset = 0x00000000
> baudrate = 115200 bps
> relocaddr = 0xbfe83000
> reloc off = 0x7c083000
> Build = 32-bit
> current eth = unknown
> ethaddr = (not set)
> IP addr = <NULL>
> fdt_blob = 0xbae7bf00
> new_fdt = 0xbae7bf00
> fdt_size = 0x00002fa0
> lmb_dump_all:
> memory.cnt = 0x1
> memory.size = 0x0
> memory.reg[0x0].base = 0x40000000
> .size = 0x7ff00000
>
> reserved.cnt = 0x1
> reserved.size = 0x0
> reserved.reg[0x0].base = 0xbae7acd0
> .size = 0x5085330
> arch_number = 0x000010c1
> TLB addr = 0xbfef0000
> irq_sp = 0xbae7bef0
> sp start = 0xbae7bee0
> Board Type = 0
> Early malloc usage: f0 / 400
>
> I'm not sure if this is relevant, but with the failing commit I can get the
> kernel to start with `initrd_high` set to `0x70000000` or lower, but not
> higher.OK, so 8 whole banks, of 256MB each. Does this platform have 2GB of memory for real? -- Tom
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