[PATCH] arm: iproc: Add higher speed configurations

Chris Packham judge.packham at gmail.com
Thu Jun 17 04:10:14 CEST 2021


On Fri, Jun 4, 2021 at 2:25 PM Chris Packham <judge.packham at gmail.com> wrote:
>
> Add support for 1.3GHz, 1.35GHz and 1.4GHz parts. This is based on
> equivalent code in Broadcom's LDK 5.0.6.
>
> Signed-off-by: Chris Packham <judge.packham at gmail.com>
>

Hi Tom,

This seems to have fallen between the cracks. Are you able to take it
through one of your trees?

> ---
> As Broadcom are currently migrating users to the BCM58525BB1KF14G part
> I suspect others may want this. In our case because we wanted to still
> run at 1.2GHz we also had to set CONFIG_ARMCLK to 1200.
>
>  arch/arm/cpu/armv7/iproc-common/armpll.c | 29 +++++++++++++-----------
>  1 file changed, 16 insertions(+), 13 deletions(-)
>
> diff --git a/arch/arm/cpu/armv7/iproc-common/armpll.c b/arch/arm/cpu/armv7/iproc-common/armpll.c
> index efa3d9e5a9bd..8c3a323f0654 100644
> --- a/arch/arm/cpu/armv7/iproc-common/armpll.c
> +++ b/arch/arm/cpu/armv7/iproc-common/armpll.c
> @@ -19,19 +19,22 @@ struct armpll_parameters {
>  };
>
>  struct armpll_parameters armpll_clk_tab[] = {
> -       {   25, 64,      1, 1, 0},
> -       {  100, 64,      1, 1, 2},
> -       {  400, 64,      1, 1, 6},
> -       {  448, 71, 713050, 1, 6},
> -       {  500, 80,      1, 1, 6},
> -       {  560, 89, 629145, 1, 6},
> -       {  600, 96,      1, 1, 6},
> -       {  800, 64,      1, 1, 7},
> -       {  896, 71, 713050, 1, 7},
> -       { 1000, 80,      1, 1, 7},
> -       { 1100, 88,      1, 1, 7},
> -       { 1120, 89, 629145, 1, 7},
> -       { 1200, 96,      1, 1, 7},
> +       {   25,  64,      1, 1, 0},
> +       {  100,  64,      1, 1, 2},
> +       {  400,  64,      1, 1, 6},
> +       {  448,  71, 713050, 1, 6},
> +       {  500,  80,      1, 1, 6},
> +       {  560,  89, 629145, 1, 6},
> +       {  600,  96,      1, 1, 6},
> +       {  800,  64,      1, 1, 7},
> +       {  896,  71, 713050, 1, 7},
> +       { 1000,  80,      1, 1, 7},
> +       { 1100,  88,      1, 1, 7},
> +       { 1120,  89, 629145, 1, 7},
> +       { 1200,  96,      1, 1, 7},
> +       { 1300, 104,      1, 1, 7},
> +       { 1350, 108,      1, 1, 7},
> +       { 1400, 112,      1, 1, 7},
>  };
>
>  uint32_t armpll_config(uint32_t clkmhz)
> --
> 2.31.1
>


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