[PATCH 2/2] spi: fsl_qspi: Support to use full AHB space on i.MX

sbabic at denx.de sbabic at denx.de
Thu Jul 16 19:48:36 CEST 2020

> i.MX platforms provide large AHB mapped space for QSPI, each
> controller has 256MB. However, current driver only maps small
> size (AHB buffer size) of AHB space, this implementation
> causes i.MX failed to boot M4 with QSPI XIP image.
> Add config CONFIG_FSL_QSPI_AHB_FULL_MAP (default enabled for i.MX)
> to address above problem.
> When the config is set:
> 1. Full AHB space is divided to each CS.
> 2. A dedicated LUT entry is used for AHB read only.
> 3. The MODE instruction in LUT is replaced to standard ADDR instruction
> 4. The address in spi_mem_op is used to SFAR and AHB read
> Signed-off-by: Ye Li <ye.li at nxp.com>
> Reviewed-by: Ashish Kumar <Ashish.Kumar at nxp.com>
> Reviewed-by: Kuldeep Singh <kuldeep.singh at nxp.com>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de

More information about the U-Boot mailing list