On Thu, 25 Apr 2013, Linus Walleij wrote:
> On Thu, Apr 18, 2013 at 12:27 PM, Lee Jones <lee.jones@xxxxxxxxxx> wrote:
>
> > The DMA controller currently takes configuration information from
> > information passed though dma_channel_request(), but it shouldn't.
> > Using the API, the DMA channel should only be configured during
> > a dma_slave_config() call.
> >
> > Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
> > Cc: David S. Miller <davem@xxxxxxxxxxxxx>
> > Cc: Andreas Westin <andreas.westin@xxxxxxxxxxxxxx>
> > Cc: linux-crypto@xxxxxxxxxxxxxxx
> > Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
>
> (...)
> > /* Cryp DMA interface */
> > +#define HASH_DMA_TX_FIFO 0x08
> > +#define HASH_DMA_RX_FIFO 0x10
>
> Yes, this is nice address notation :-)
>
> > /**
> > * struct cryp_device_data - structure for a cryp device.
> > - * @base: Pointer to the hardware base address.
> > + * @base: Pointer to virtual base address of the cryp device.
> > + * @phybase: Pointer to physical memory location of the cryp device.
> > * @dev: Pointer to the devices dev structure.
> > * @clk: Pointer to the device's clock control.
> > * @pwr_regulator: Pointer to the device's power control.
> > @@ -232,6 +236,7 @@ struct cryp_dma {
> > */
> > struct cryp_device_data {
> > struct cryp_register __iomem *base;
> > + phys_addr_t phybase;
>
> Use dma_addr_t. Maybe "phybase" is misleading,
> "dmabase" is probably better. (Also applies to the
> cryp patch).
Accept it's not the dmabase.
It's the phybase (U8500_CRYP1_BASE) i.e. the physical base address of
the device's regs.
--
Lee Jones
Linaro ST-Ericsson Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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