[PATCH v6 075/102] spi: ich: Add TPL support

[Bin Meng]

On Sat, Dec 7, 2019 at 12:52 PM Simon Glass <sjg at chromium.org> wrote:
>
> In TPL we want to reduce code size and support running with CONFIG_PCI
> disabled. Add special code to handle this using a fixed BAR programmed
> into the SPI on boot. Also cache the SPI flash to speed up boot.
>
> Signed-off-by: Simon Glass <sjg at chromium.org>
>
> ---
>
> Changes in v6:
> - Add a comment about why we should not use MTRR_TYPE_WRBACK
> - Use SZ_4G instead of open-coding the size value
>
> Changes in v5: None
> Changes in v4: None
> Changes in v3: None
> Changes in v2: None
>

Reviewed-by: Bin Meng <bmeng.cn at gmail.com>