[PATCH v2 3/4] spi: Add Microchip PolarFire SoC QSPI driver

[Conor Dooley]

On Fri, Oct 21, 2022 at 12:29:21PM +0530, Padmarao Begari wrote:
> Add QSPI driver code for the Microchip PolarFire SoC.
> This driver supports the QSPI standard, dual and quad
> mode interfaces.
> 
> Co-developed-by: Naga Sureshkumar Relli <nagasuresh.relli at microchip.com>
> Signed-off-by: Naga Sureshkumar Relli <nagasuresh.relli at microchip.com>
> Signed-off-by: Padmarao Begari <padmarao.begari at microchip.com>
> ---
>  drivers/spi/Kconfig              |   6 +
>  drivers/spi/Makefile             |   1 +
>  drivers/spi/microchip_coreqspi.c | 505 +++++++++++++++++++++++++++++++
>  3 files changed, 512 insertions(+)
>  create mode 100644 drivers/spi/microchip_coreqspi.c
> 

> +/* QSPI ready time out value */
> +#define TIMEOUT_MS             (1000 * 60)

Hey Padmarao, just zipping through and cross referencing against the
linux driver.. Why's this a 60 * 1000 when linux times out after 500 ms?
Other than that, things look identical modulo the required interrupt and
clocking changes for U-Boot.
Reviewed-by: Conor Dooley <conor.dooley at microchip.com>

Thanks,
Conor.