On 9/26/18 4:10 AM, Ashish Kumar wrote:
Enable AHB support for Flexspi controller interface meaning memory can be accessed via md command using absolute addresses
Signed-off-by: Yogesh Gaur yogeshnarayan.gaur@nxp.com Signed-off-by: Rajat Srivastava rajat.srivastava@nxp.com Signed-off-by: Ashish Kumar Ashish.Kumar@nxp.com
v2:
- Rename FSPI to FlexSPI in description and comments
- s/cmd/command
- Add macro and comments to improve readablity of code in soc.c
- Add declaration in soc.h for fspi_ahb_init()
arch/arm/cpu/armv8/fsl-layerscape/Kconfig | 10 +++++ arch/arm/cpu/armv8/fsl-layerscape/soc.c | 44 +++++++++++++++++++ .../arm/include/asm/arch-fsl-layerscape/soc.h | 7 +++ 3 files changed, 61 insertions(+)
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig index 5280d33ec8..70f26973e9 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig +++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig @@ -327,6 +327,16 @@ config SYS_FSPI_AHB_INIT performed. Default LUT programmed in AHB mode is Fast Read command with 4-byte addressing enabled.
SYS_FSPI_AHB_INIT doesn't exist yet.
+config FSPI_AHB_EN_4BYTE
- bool "Enable 4-byte Fast Read command for AHB mode"
- depends on NXP_FSPI
- default n
- help
The default setting for FlexSPI AHB bus just supports 3-byte addressing.But some FlexSPI flash sizes are up to 64MBytes.This flag enables fast read command for AHB mode and modifies requiredLUT to support full FlexSPI flash.
NXP_FSPI doesn't exist yet.
Do you have dependency I missed?
York