Re: [PATCH] ARM: socfpga: fix base address of SDR controller

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On Tue, Jan 29, 2019 at 2:09 PM Simon Goldschmidt
<simon.k.r.goldschmidt@xxxxxxxxx> wrote:

Hi Simon,

Thanks for submitting.   A couple of things...

> diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
> index f365003f0..8f6c1a5d6 100644
> --- a/arch/arm/boot/dts/socfpga.dtsi
> +++ b/arch/arm/boot/dts/socfpga.dtsi
> @@ -788,9 +788,9 @@
>                         reg = <0xfffec000 0x100>;
>                 };
>
> -               sdr: sdr@ffc25000 {
> +               sdr: sdr@ffc20000 {
>                         compatible = "altr,sdr-ctl", "syscon";
> -                       reg = <0xffc25000 0x1000>;
> +                       reg = <0xffc20000 0x6000>;

The binding doc will also need this change (in a separate patch)
Documentation/devicetree/bindings/arm/altera/socfpga-sdram-controller.txt

> diff --git a/arch/arm/mach-socfpga/self-refresh.S b/arch/arm/mach-socfpga/self-refresh.S
> index f2d7f883e..bd7759357 100644
> --- a/arch/arm/mach-socfpga/self-refresh.S
> +++ b/arch/arm/mach-socfpga/self-refresh.S
> @@ -19,8 +19,8 @@
>  #define MAX_LOOP_COUNT         1000
>
>  /* Register offset */
> -#define SDR_CTRLGRP_LOWPWREQ_ADDR       0x54
> -#define SDR_CTRLGRP_LOWPWRACK_ADDR      0x58
> +#define SDR_CTRLGRP_LOWPWREQ_ADDR       0x5054
> +#define SDR_CTRLGRP_LOWPWRACK_ADDR      0x5058

These offsets are used for ldr/sdr and are limited to 12 bits.  This
won't build if CONFIG_SOCFPGA_SUSPEND is enabled.

/home/atull/repos/linux-socfpga/arch/arm/mach-socfpga/self-refresh.S:
Assembler messages:
/home/atull/repos/linux-socfpga/arch/arm/mach-socfpga/self-refresh.S:65:
Error: bad immediate value for offset (20564)
/home/atull/repos/linux-socfpga/arch/arm/mach-socfpga/self-refresh.S:67:
Error: bad immediate value for offset (20564)
/home/atull/repos/linux-socfpga/arch/arm/mach-socfpga/self-refresh.S:72:
Error: bad immediate value for offset (20568)
/home/atull/repos/linux-socfpga/arch/arm/mach-socfpga/self-refresh.S:101:
Error: bad immediate value for offset (20564)
/home/atull/repos/linux-socfpga/arch/arm/mach-socfpga/self-refresh.S:103:
Error: bad immediate value for offset (20564)
/home/atull/repos/linux-socfpga/arch/arm/mach-socfpga/self-refresh.S:108:
Error: bad immediate value for offset (20568)
/home/atull/repos/linux-socfpga/scripts/Makefile.build:367: recipe for
target 'arch/arm/mach-socfpga/self-refresh.o' failed

Thanks,
Alan



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