Hi Sascha,
On 3/28/23 09:40, Sascha Hauer wrote:
> This series adds support for reading the amount of memory from
> the DDR controller. This helps on boards which come with
> different amounts of memory like the Radxa Rock3a.
>
> This series also fixes issues with an upstream TF-A firmware. With this
> the IRAM where the bootsource is stored is no longer accessible in
> normal mode. We have to read its contents before starting the TF-A.
> For this it became necessary to add a common barebox entry function
> for rk3568, to get a common place to read the IRAM contents.
Nice, thanks for your efforts! Now it should be possible to remove the
memory nodes from arch/arm/dts/rk356*, right?
I tried this on a ROCK3A with 8 GB and the memory calculation returned
the correct result. There are now two ram devices
`-- mem0
`-- 0x00000000-0x10fffffff ( 4.3 GiB): /dev/ram1
`-- mem1
`-- 0x00000000-0xef5fffff ( 3.7 GiB): /dev/ram0
`-- mem2
`-- 0x00000000-0xffffffffffffffff ( 0 Bytes): /dev/mem
that start at SZ_4G and 0xa00000, respectively.
However, after loading the kernel the system hangs:
Loaded kernel to 0x100000000, devicetree at 0x101970000
Is this a bug in barebox or is something special required to boot the
kernel from SZ_4G?
Best regards,
Michael
>
> Sascha
>
> Changes since v1:
> - Call relocate_to_adr_full() from board code to make sure the
> fdt from the relocated binary is used, not from the original
> binary
> - Add patch to pass a NULL fdt to TF-A
>
> Ahmad Fatoum (2):
> ARM: Rockchip: implement memory read out from controller
> ARM: Rockchip: make bootsource logic generic to all SoCs
>
> Sascha Hauer (4):
> ARM: dts: rk356x: Add DMC controller node
> ARM: Rockchip: Add rk3568 specific barebox entry function
> ARM: Rockchip: rk3568: use rk3568_barebox_entry()
> ARM: Rockchip: Do not pass device tree to TF-A
>
> arch/arm/boards/pine64-quartz64/lowlevel.c | 30 +--
> arch/arm/boards/radxa-rock3/lowlevel.c | 31 +--
> .../rockchip-rk3568-bpi-r2pro/lowlevel.c | 31 +--
> .../arm/boards/rockchip-rk3568-evb/lowlevel.c | 32 +--
> arch/arm/dts/rk356x.dtsi | 5 +
> arch/arm/mach-rockchip/Makefile | 3 +-
> arch/arm/mach-rockchip/atf.c | 34 +++
> arch/arm/mach-rockchip/bootrom.c | 51 ++++
> arch/arm/mach-rockchip/dmc.c | 232 ++++++++++++++++++
> arch/arm/mach-rockchip/rk3568.c | 29 +--
> include/bootsource.h | 1 +
> include/linux/sizes.h | 3 +
> include/mach/rockchip/atf.h | 2 +
> include/mach/rockchip/bootrom.h | 32 +++
> include/mach/rockchip/dmc.h | 86 +++++++
> include/mach/rockchip/rk3399-regs.h | 1 +
> include/mach/rockchip/rk3568-regs.h | 1 +
> 17 files changed, 469 insertions(+), 135 deletions(-)
> create mode 100644 arch/arm/mach-rockchip/bootrom.c
> create mode 100644 arch/arm/mach-rockchip/dmc.c
> create mode 100644 include/mach/rockchip/bootrom.h
> create mode 100644 include/mach/rockchip/dmc.h
>
