On Wed, 2020-05-20 at 10:30 -0400, Jim Quinlan wrote:
> On Wed, May 20, 2020 at 7:51 AM Nicolas Saenz Julienne
> <nsaenzjulienne@xxxxxxx> wrote:
[...]
> > > +
> > > +static const struct pcie_cfg_data bcm7278_cfg = {
> > > + .reg_field_info = pcie_reg_field_info_bcm7278,
> > > + .offsets = pcie_offset_bcm7278,
> > > + .type = BCM7278,
> > > +};
> >
> > It's not essential, but if v2 is due I'd suggest factoring out the bcm2728
> > specific structures above, and moving them to patch #15. This will keep a
> > clearer division between the patch introducing the infrastructure and the
> > one
> > adding the support for a new device.
> The problem is that one of the commits needs the 7278 type so it has
> to be declared earlier.
Fair enough.
> > > +
> > > struct brcm_msi {
> > > struct device *dev;
> > > void __iomem *base;
> > > @@ -176,6 +238,9 @@ struct brcm_pcie {
> > > int gen;
> > > u64 msi_target_addr;
> > > struct brcm_msi *msi;
> > > + const int *reg_offsets;
> > > + const int *reg_field_info;
> > > + enum pcie_type type;
> > > };
> > >
> > > /*
> > > @@ -602,20 +667,21 @@ static struct pci_ops brcm_pcie_ops = {
> > >
> > > static inline void brcm_pcie_bridge_sw_init_set(struct brcm_pcie *pcie,
> > > u32
> > > val)
> > > {
> > > - u32 tmp;
> > > + u32 tmp, mask = pcie->reg_field_info[RGR1_SW_INIT_1_INIT_MASK];
> > > + u32 shift = pcie->reg_field_info[RGR1_SW_INIT_1_INIT_SHIFT];
> >
> > I don't think you need shift here, IIUC u32p_replace_bits() will take care
> > of
> > all the masking and shifting internally, moreover, you'd be able to drop the
> > shift entry from reg_field_info.
> Got it.
> > > - tmp = readl(pcie->base + PCIE_RGR1_SW_INIT_1);
> > > - u32p_replace_bits(&tmp, val, PCIE_RGR1_SW_INIT_1_INIT_MASK);
> > > - writel(tmp, pcie->base + PCIE_RGR1_SW_INIT_1);
> > > + tmp = readl(pcie->base + PCIE_RGR1_SW_INIT_1(pcie));
> > > + tmp = (tmp & ~mask) | ((val << shift) & mask);
> > > + writel(tmp, pcie->base + PCIE_RGR1_SW_INIT_1(pcie));
> > > }
> >
> > Regards,
> > Nicolas
> >
> Thanks!
> Jim
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