Re: [U-Boot] [PATCH 1/4] topic-miamiplus: Run CPU at 800MHz for speedgrade-2

On 24.8.2018 14:00, Mike Looijmans wrote:

The miamiplus contains a speedgrade-2 device, which may run the CPU at 800MHz. Change the PLL setting to 800MHz, and adapt the setpoints in the devicetree.

Signed-off-by: Mike Looijmans mike.looijmans@topic.nl

arch/arm/dts/zynq-topic-miamiplus.dts | 9 +++++++++ board/topic/zynq/zynq-topic-miamiplus/ps7_init_gpl.c | 4 ++-- 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/arch/arm/dts/zynq-topic-miamiplus.dts b/arch/arm/dts/zynq-topic-miamiplus.dts index c0ccea9..df53886 100644 --- a/arch/arm/dts/zynq-topic-miamiplus.dts +++ b/arch/arm/dts/zynq-topic-miamiplus.dts @@ -11,6 +11,15 @@ compatible = "topic,miamiplus", "xlnx,zynq-7000"; };

+/* The miamiplus contains a speedgrade-2 device and runs at 800MHz */ +&cpu0 {

• operating-points = <

• /* kHz    uV */
  

• 800000  1000000
  

• 400000  1000000
  

• ...

  ;

+};

&qspi { is-dual = <1>; }; diff --git a/board/topic/zynq/zynq-topic-miamiplus/ps7_init_gpl.c b/board/topic/zynq/zynq-topic-miamiplus/ps7_init_gpl.c index c1cc1df..fd5846a 100644 --- a/board/topic/zynq/zynq-topic-miamiplus/ps7_init_gpl.c +++ b/board/topic/zynq/zynq-topic-miamiplus/ps7_init_gpl.c @@ -8,8 +8,8 @@

static unsigned long ps7_pll_init_data_3_0[] = { EMIT_MASKWRITE(0XF8000008, 0x0000FFFFU, 0x0000DF0DU),

• EMIT_MASKWRITE(0XF8000110, 0x003FFFF0U, 0x000FA220U),
• EMIT_MASKWRITE(0XF8000100, 0x0007F000U, 0x00028000U),

• EMIT_MASKWRITE(0XF8000110, 0x003FFFF0U, 0x000FA240U),
• EMIT_MASKWRITE(0XF8000100, 0x0007F000U, 0x00030000U), EMIT_MASKWRITE(0XF8000100, 0x00000010U, 0x00000010U), EMIT_MASKWRITE(0XF8000100, 0x00000001U, 0x00000001U), EMIT_MASKWRITE(0XF8000100, 0x00000001U, 0x00000000U),

This is fine. M