Hi,
On Wed, Nov 14, 2012 at 4:28 PM, Igor Mazanov <i.mazanov@xxxxxxxxx> wrote:
> Hello,
>
> Beaglebone boot process is broken with the current git kernel. I use
> omap2plus_defconfig for tests.
>
> It looks like the boot process stops due to the last changes in the AM33xx
> clock sysbsystem. A following patch resolves this issue:
>
> diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
> b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
> index ad8d43b..858e180 100644
> --- a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
> +++ b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
> @@ -586,7 +586,7 @@ static struct omap_hwmod am33xx_smartreflex0_hwmod = {
> .class = &am33xx_smartreflex_hwmod_class,
> .clkdm_name = "l4_wkup_clkdm",
> .mpu_irqs = am33xx_smartreflex0_irqs,
> - .main_clk = "smartreflex0_fck",
> + .main_clk = "smartreflex_mpu_fck",
> .prcm = {
> .omap4 = {
> .clkctrl_offs =
> AM33XX_CM_WKUP_SMARTREFLEX0_CLKCTRL_OFFSET,
> @@ -606,7 +606,7 @@ static struct omap_hwmod am33xx_smartreflex1_hwmod = {
> .class = &am33xx_smartreflex_hwmod_class,
> .clkdm_name = "l4_wkup_clkdm",
> .mpu_irqs = am33xx_smartreflex1_irqs,
> - .main_clk = "smartreflex1_fck",
> + .main_clk = "smartreflex_core_fck",
> .prcm = {
> .omap4 = {
> .clkctrl_offs =
> AM33XX_CM_WKUP_SMARTREFLEX1_CLKCTRL_OFFSET,
>
About the name field in the hwmod entry: the SR code checks on the
value of "smartreflex_mpu_iva" to differentiate the SR IP blocks and
to apply the correct parameters to each of them. Cf. the function
sr_set_regfields in drivers/power/avs/smartreflex.c.
The patch should change the name of the hwmod entry as well, can you
fold this change in the current patch?
Note: I know the name "smartreflex_mpu_iva" is not perfect since it
does not apply to all OMAP3 variants, maybe we could change the SR
code to be more generic.
Nishant, what do you think?
Regards,
Jean
>
> Regards,
> Igor.
>
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