[U-Boot] [PATCH RESEND v2 02/10] dma: ti: k3-udma: Query DMA channels allocated from Resource Manager

[Grygorii Strashko]

On 02/12/2019 10:54, Vignesh Raghavendra wrote:
> On K3 SoCs, DMA channels are shared across multiple entities, therefore
> U-Boot DMA driver needs to query resource range from centralised
> resource management controller i.e SystemFirmware and use DMA channels
> allocated for A72 host. Add support for the same.
> 
> Signed-off-by: Vignesh Raghavendra <vigneshr at ti.com>
> ---
> v2:
> Address comments on v1 from Grygorii
> Squash patch 5 (of v1) into this patch
> 
>   drivers/dma/ti/k3-udma-hwdef.h |  19 +++
>   drivers/dma/ti/k3-udma.c       | 274 +++++++++++++++++++++++----------
>   2 files changed, 214 insertions(+), 79 deletions(-)
> 
> diff --git a/drivers/dma/ti/k3-udma-hwdef.h b/drivers/dma/ti/k3-udma-hwdef.h
> index c88399a815ea..228a44cb73cf 100644
> --- a/drivers/dma/ti/k3-udma-hwdef.h
> +++ b/drivers/dma/ti/k3-udma-hwdef.h
> @@ -181,4 +181,23 @@
>   #define PDMA_STATIC_TR_Z(x)	\
>   	(((x) << PDMA_STATIC_TR_Z_SHIFT) & PDMA_STATIC_TR_Z_MASK)
>   
> +enum udma_rm_range {
> +	RM_RANGE_TCHAN = 0,
> +	RM_RANGE_RCHAN,
> +	RM_RANGE_RFLOW,
> +	RM_RANGE_LAST,
> +};
> +
> +struct udma_tisci_rm {
> +	const struct ti_sci_handle *tisci;
> +	const struct ti_sci_rm_udmap_ops *tisci_udmap_ops;
> +	u32  tisci_dev_id;
> +
> +	/* tisci information for PSI-L thread pairing/unpairing */
> +	const struct ti_sci_rm_psil_ops *tisci_psil_ops;
> +	u32  tisci_navss_dev_id;
> +
> +	struct ti_sci_resource *rm_ranges[RM_RANGE_LAST];
> +};

I'd move it in k3-udma.c

> +
>   #endif /* K3_NAVSS_UDMA_HWDEF_H_ */
> diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
> index a5fc7809bc41..2f82ab0955a4 100644
> --- a/drivers/dma/ti/k3-udma.c
> +++ b/drivers/dma/ti/k3-udma.c
> @@ -11,12 +11,14 @@
>   #include <malloc.h>

[...]

-- 
Best regards,
grygorii