On Monday 08 February 2016 12:41:02 Gabriele Paoloni wrote:
> +
> +/* HipXX PCIe host only supports 32-bit config access */
> +int hisi_pcie_common_cfg_read(void __iomem *reg_base, int where, int size,
> + u32 *val)
> +{
> + u32 reg;
> + u32 reg_val;
> + void *walker = ®_val;
> +
> + walker += (where & 0x3);
> + reg = where & ~0x3;
> + reg_val = readl(reg_base + reg);
> +
> + if (size == 1)
> + *val = *(u8 __force *) walker;
> + else if (size == 2)
> + *val = *(u16 __force *) walker;
> + else if (size == 4)
> + *val = reg_val;
> + else
> + return PCIBIOS_BAD_REGISTER_NUMBER;
> +
> + return PCIBIOS_SUCCESSFUL;
> +}
Isn't this the same hack that Qualcomm are using?
Arnd
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