Hi Michal,
On Mon, 2014-10-06 at 01:44PM +0200, Michal Simek wrote:
> Get OCM configuration from SLCR.
>
> Signed-off-by: Michal Simek <michal.si...@xilinx.com>
> ---
>
> arch/arm/mach-zynq/slcr.c | 15 +++++++++++++++
> include/soc/zynq/common.h | 1 +
> 2 files changed, 16 insertions(+)
>
> diff --git a/arch/arm/mach-zynq/slcr.c b/arch/arm/mach-zynq/slcr.c
> index cb7c46165728..0c3e45090c09 100644
> --- a/arch/arm/mach-zynq/slcr.c
> +++ b/arch/arm/mach-zynq/slcr.c
> @@ -27,6 +27,7 @@
> #define SLCR_A9_CPU_RST_CTRL_OFFSET 0x244 /* CPU Software Reset Control */
> #define SLCR_REBOOT_STATUS_OFFSET 0x258 /* PS Reboot Status */
> #define SLCR_PSS_IDCODE 0x530 /* PS IDCODE */
> +#define SLCR_OCM_CFG_OFFSET 0x910 /* OCM Address Mapping */
>
> #define SLCR_UNLOCK_MAGIC 0xDF0D
> #define SLCR_A9_CPU_CLKSTOP 0x10
> @@ -126,6 +127,20 @@ void zynq_slcr_system_reset(void)
> }
>
> /**
> + * zynq_slcr_get_ocm_config - Get SLCR OCM config
> + *
> + * Return: OCM config bits
> + */
> +u32 zynq_slcr_get_ocm_config(void)
> +{
> + u32 val;
> +
> + zynq_slcr_read(&val, SLCR_OCM_CFG_OFFSET);
> +
> + return val;
> +}
a different idea would be, instead of creating this specific API call
for the OCMC to let the OCMC driver use regmap and making git a subnode
of the SLCR.
In the long run that might be a better option otherwise we'll end up
with a whole bunch of zynq_slcr_get_foo() calls for each driver that
needs to read an SLCR register.
Thanks,
Sören
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