On 2/5/25 18:59, Hal Feng wrote:
> On 2/5/2025 6:01 PM, Heinrich Schuchardt wrote:
>> On 2/5/25 08:57, Hal Feng wrote:
>>> On 2/3/2025 9:37 AM, E Shattow wrote:
>>>> Add bootph-pre-ram hinting to jh7110-common.dtsi:
>>>> - i2c5_pins and i2c-pins subnode for connection to eeprom
>>>> - eeprom node
>>>> - qspi flash configuration subnode
>>>> - memory node
>>>> - uart0 for serial console
>>>>
>>>> With this the U-Boot SPL secondary program loader may drop such
>>>> overrides when using dt-rebasing with JH7110 OF_UPSTREAM board targets.
>>>>
>>>> Signed-off-by: E Shattow <e@xxxxxxxxxxxx>
>>>> ---
>>>> arch/riscv/boot/dts/starfive/jh7110-common.dtsi | 6 ++++++
>>>> 1 file changed, 6 insertions(+)
>>>>
>>>> diff --git a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
>>>> index 30c5f3487c8b..c9e7ae59ee7c 100644
>>>> --- a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
>>>> +++ b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
>>>> @@ -28,6 +28,7 @@ chosen {
>>>> memory@40000000 {
>>>> device_type = "memory";
>>>> reg = <0x0 0x40000000 0x1 0x0>;
>>>> + bootph-pre-ram;
>>>> };
>>>> gpio-restart {
>>>> @@ -247,6 +248,7 @@ emmc_vdd: aldo4 {
>>>> };
>>>> eeprom@50 {
>>>> + bootph-pre-ram;
>>>> compatible = "atmel,24c04";
>>>> reg = <0x50>;
>>>> pagesize = <16>;
>>>> @@ -323,6 +325,7 @@ &qspi {
>>>> nor_flash: flash@0 {
>>>> compatible = "jedec,spi-nor";
>>>> reg = <0>;
>>>> + bootph-pre-ram;
>>>> cdns,read-delay = <2>;
>>>> spi-max-frequency = <100000000>;
>>>> cdns,tshsl-ns = <1>;
>>>> @@ -405,6 +408,7 @@ GPOEN_SYS_I2C2_DATA,
>>>> };
>>>> i2c5_pins: i2c5-0 {
>>>> + bootph-pre-ram;
>>>> i2c-pins {
>>>> pinmux = <GPIOMUX(19, GPOUT_LOW,
>>>> GPOEN_SYS_I2C5_CLK,
>>>> @@ -413,6 +417,7 @@ GPI_SYS_I2C5_CLK)>,
>>>> GPOEN_SYS_I2C5_DATA,
>>>> GPI_SYS_I2C5_DATA)>;
>>>> bias-disable; /* external pull-up */
>>>> + bootph-pre-ram;
>>>> input-enable;
>>>> input-schmitt-enable;
>>>> };
>>>> @@ -641,6 +646,7 @@ GPOEN_DISABLE,
>>>> };
>>>> &uart0 {
>>>> + bootph-pre-ram;
>>>> clock-frequency = <24000000>;
>>>> pinctrl-names = "default";
>>>> pinctrl-0 = <&uart0_pins>;
>>>
>>> What about &mmc0, &mmc1, &qspi, &sysgpio, &mmc0_pins, &mmc1_pins, &i2c5?
>>> Why not add "bootph-pre-ram;" for them?
>>
>> Would they be needed before relocation of U-Boot to DRAM?
>
> Yeah, they are needed by SPL and they are set in
> U-Boot arch/riscv/dts/jh7110-common-u-boot.dtsi.
>
> Best regards,
> Hal
>
When I tested on Star64 there was none of those needed to boot. We can
add more bootph-pre-ram as needed but I want to know how to test
(because I did not see any need for these).
How do you test that these are needed?
-E
