On 30.09.20 12:03, Marek Vasut wrote: > On 9/30/20 11:51 AM, Jan Kiszka wrote: >> [BCC'ed TF-A only, migrating to u-boot, including folks involved there] >> >> On 30.09.20 11:20, Yann GAUTIER wrote: >>> Hi Jan, >>> >>> After discussing with my colleagues, it seems there are 2 issues there. >>> One patch is missing in U-Boot: >>> http://patchwork.ozlabs.org/project/uboot/patch/20200605092244.1.I773bf523d9f4d1a6212483d030e34113b832a779@changeid/ >>> >> >> I can confirm that this resolves the errors I've seen. >> >> Will that patch still hit 2020.10? > > Is that patch a bugfix or a feature ? OpTee seems like a feature. > Since it has no Fixes: tag, it seems like a feature? > >>> And it shows an issue in kernel, with GPU and CMA regions. >>> A correction in kernel should also be done: >>> >>> diff --git a/arch/arm/boot/dts/stm32mp157c-ed1.dts >>> b/arch/arm/boot/dts/stm32mp157c-ed1.dts >>> index ca109dc18..685dd61c0 100644 >>> --- a/arch/arm/boot/dts/stm32mp157c-ed1.dts >>> +++ b/arch/arm/boot/dts/stm32mp157c-ed1.dts >>> @@ -66,8 +66,8 @@ >>> no-map; >>> }; >>> >>> - gpu_reserved: gpu@e8000000 { >>> - reg = <0xe8000000 0x8000000>; >>> + gpu_reserved: gpu@f6000000 { >>> + reg = <0xf6000000 0x8000000>; >>> no-map; >>> }; >>> }; >>> > > Why do you even need reserved memory for GPU ? Etnaviv to my knowledge > doesn't use this ? > >> There might be more issues: >> >> [ 3.428914] stm32_rtc 5c004000.rtc: IRQ index 1 not found >> [ 3.432892] stm32_rtc 5c004000.rtc: alarm can't wake up the system: -6 >> [ 3.440290] stm32_rtc 5c004000.rtc: registered as rtc0 >> [ 3.444560] stm32_rtc 5c004000.rtc: setting system clock to >> 2000-01-01T00:00:07 UTC (946684807) >> [ 3.453530] stm32_rtc 5c004000.rtc: Date/Time must be initialized >> [ 3.459333] stm32_rtc 5c004000.rtc: registered rev:1.2 >> [ 3.465993] i2c /dev entries driver >> [ 3.490226] stm32f7-i2c 40013000.i2c: can't request DMA tx channel >> [ 3.494951] stm32f7-i2c 40013000.i2c: can't use DMA >> [ 3.504213] stm32f7-i2c 40013000.i2c: STM32F7 I2C-0 bus adapter >> [ 3.529032] stm32f7-i2c 40015000.i2c: can't request DMA tx channel >> [ 3.533779] stm32f7-i2c 40015000.i2c: can't use DMA >> [ 3.539356] stm32f7-i2c 40015000.i2c: STM32F7 I2C-1 bus adapter >> [ 3.567561] stm32f7-i2c 5c002000.i2c: can't request DMA tx channel >> [ 3.572312] stm32f7-i2c 5c002000.i2c: can't use DMA >> >> But those would be a kernel topic, I suppose. > > Which kernel version is that ? >
That was from a 5.9-rc7 boot. > Mainline on MP1 works just fine, with etnaviv too. > Note that the DMA warnings might be bogus if you don't enable DMA for > i2c in DT, which is often the case, as i2c doesn't really need DMA and > would only waste the DMA channels. I'm just testing "all defconfig" for all components here. Jan
