diff options
| author | Ye Li | 2020-06-09 00:59:06 -0700 |
|---|---|---|
| committer | Stefano Babic | 2020-07-16 11:19:43 +0200 |
| commit | def88bce094e95939abf1e5d02a9b413b3627f6f (patch) | |
| tree | 78130b3082f1e8f25c80f0a1651afe0265585aac /drivers/spi/Kconfig | |
| parent | 93d6c8f7b79786878f186b7e30676a52bba52860 (diff) | |
spi: fsl_qspi: Support to use full AHB space on i.MX
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@nxp.com>
Reviewed-by: Ashish Kumar <Ashish.Kumar@nxp.com>
Reviewed-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Diffstat (limited to 'drivers/spi/Kconfig')
| -rw-r--r-- | drivers/spi/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 3a8add98f76..30d808d7bb2 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -155,6 +155,14 @@ config FSL_QSPI used to access the SPI NOR flash on platforms embedding this Freescale IP core. +config FSL_QSPI_AHB_FULL_MAP + bool "Use full AHB memory map space" + depends on FSL_QSPI + default y if ARCH_MX6 || ARCH_MX7 || ARCH_MX7ULP || ARCH_IMX8M + help + Enable the Freescale QSPI driver to use full AHB memory map space for + flash access. + config ICH_SPI bool "Intel ICH SPI driver" help |