I tested both patch on my mx28evk. At least I cannot notice any
missbehavior :-) Downloading the patched u-boot via USB recovery
download still does not work.
Marek, did you find any further mentionable difference between bootlets
code and current u-boot implementation?
Matthias
On 31.01.2012 01:00, Marek Vasut wrote:
> The DC power STS shouldn't be checked if booting off 5V supply.
>
> Signed-off-by: Marek Vasut <marek.va...@gmail.com>
> Cc: Wolfgang Denk <w...@denx.de>
> Cc: Detlev Zundel <d...@denx.de>
> Cc: Stefano Babic <sba...@denx.de>
> Cc: Robert Deliën <rob...@delien.nl>
> Cc: Fabio Estevam <feste...@gmail.com>
> Cc: Matthias Fuchs <matthias.fu...@esd.eu>
> ---
> arch/arm/cpu/arm926ejs/mx28/spl_power_init.c | 16 ++++++++++++----
> 1 files changed, 12 insertions(+), 4 deletions(-)
>
> Note: Guys, please give this a testrun. I think it might fix the issue Robert
> was observing. I dug into the imx-bootlets and the bootrom X-Files and found
> this paranormal piece of code. Adding it fixes the boot issue on my crappy
> board.
>
> M
>
> diff --git a/arch/arm/cpu/arm926ejs/mx28/spl_power_init.c
> b/arch/arm/cpu/arm926ejs/mx28/spl_power_init.c
> index ee0f237..c6c25d9 100644
> --- a/arch/arm/cpu/arm926ejs/mx28/spl_power_init.c
> +++ b/arch/arm/cpu/arm926ejs/mx28/spl_power_init.c
> @@ -802,7 +802,9 @@ void mx28_power_set_vddio(uint32_t new_target, uint32_t
> new_brownout)
> clrsetbits_le32(&power_regs->hw_power_vddioctrl,
> POWER_VDDIOCTRL_TRG_MASK, diff);
>
> - if (powered_by_linreg)
> + if (powered_by_linreg ||
> + (readl(&power_regs->hw_power_sts) &
> + POWER_STS_VDD5V_GT_VDDIO))
> early_delay(1500);
> else {
> while (!(readl(&power_regs->hw_power_sts) &
> @@ -837,7 +839,9 @@ void mx28_power_set_vddio(uint32_t new_target, uint32_t
> new_brownout)
> clrsetbits_le32(&power_regs->hw_power_vddioctrl,
> POWER_VDDIOCTRL_TRG_MASK, diff);
>
> - if (powered_by_linreg)
> + if (powered_by_linreg ||
> + (readl(&power_regs->hw_power_sts) &
> + POWER_STS_VDD5V_GT_VDDIO))
> early_delay(1500);
> else {
> while (!(readl(&power_regs->hw_power_sts) &
> @@ -895,7 +899,9 @@ void mx28_power_set_vddd(uint32_t new_target, uint32_t
> new_brownout)
> clrsetbits_le32(&power_regs->hw_power_vdddctrl,
> POWER_VDDDCTRL_TRG_MASK, diff);
>
> - if (powered_by_linreg)
> + if (powered_by_linreg ||
> + (readl(&power_regs->hw_power_sts) &
> + POWER_STS_VDD5V_GT_VDDIO))
> early_delay(1500);
> else {
> while (!(readl(&power_regs->hw_power_sts) &
> @@ -930,7 +936,9 @@ void mx28_power_set_vddd(uint32_t new_target, uint32_t
> new_brownout)
> clrsetbits_le32(&power_regs->hw_power_vdddctrl,
> POWER_VDDDCTRL_TRG_MASK, diff);
>
> - if (powered_by_linreg)
> + if (powered_by_linreg ||
> + (readl(&power_regs->hw_power_sts) &
> + POWER_STS_VDD5V_GT_VDDIO))
> early_delay(1500);
> else {
> while (!(readl(&power_regs->hw_power_sts) &
--
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