Quoting Neil Armstrong (2017-12-06 11:54:28)
> The VPU init misses these configurations values.
>
> Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
> ---
> drivers/gpu/drm/meson/meson_drv.c | 9 +++++++++
> drivers/gpu/drm/meson/meson_registers.h | 4 ++++
> 2 files changed, 13 insertions(+)
>
> diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
> index 3b804fd..f9ad0e9 100644
> --- a/drivers/gpu/drm/meson/meson_drv.c
> +++ b/drivers/gpu/drm/meson/meson_drv.c
> @@ -151,6 +151,14 @@ static struct regmap_config meson_regmap_config = {
> .max_register = 0x1000,
> };
>
> +static void meson_vpu_init(struct meson_drm *priv)
> +{
> + writel_relaxed(0x210000, priv->io_base + _REG(VPU_RDARB_MODE_L1C1));
> + writel_relaxed(0x10000, priv->io_base + _REG(VPU_RDARB_MODE_L1C2));
> + writel_relaxed(0x900000, priv->io_base + _REG(VPU_RDARB_MODE_L2C1));
> + writel_relaxed(0x20000, priv->io_base + _REG(VPU_WRARB_MODE_L2C1));
> +}
> diff --git a/drivers/gpu/drm/meson/meson_registers.h b/drivers/gpu/drm/meson/meson_registers.h
> index 2847381..bca8714 100644
> --- a/drivers/gpu/drm/meson/meson_registers.h
> +++ b/drivers/gpu/drm/meson/meson_registers.h
> @@ -1363,6 +1363,10 @@
> #define VPU_PROT3_STAT_1 0x277a
> #define VPU_PROT3_STAT_2 0x277b
> #define VPU_PROT3_REQ_ONOFF 0x277c
> +#define VPU_RDARB_MODE_L1C1 0x2790
> +#define VPU_RDARB_MODE_L1C2 0x2799
Hmm, not naturally aligned for writel. Is the register width correct,
address correct, or this really is an unaligned iowrite?
> +#define VPU_RDARB_MODE_L2C1 0x279d
> +#define VPU_WRARB_MODE_L2C1 0x27a2
Similarly,
-Chris
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