-----Original Message----- From: York Sun Sent: Tuesday, November 13, 2018 3:34 AM To: Ashish Kumar ashish.kumar@nxp.com Cc: u-boot@lists.denx.de; Rajat Srivastava rajat.srivastava@nxp.com; Yogesh Narayan Gaur yogeshnarayan.gaur@nxp.com Subject: Re: [PATCH v2] fsl-lsch3: soc: Enable AHB read support for Flexspi controller
On 11/2/18 8:59 AM, York Sun wrote:
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 2.
s/cmd/command 3. Add macro and comments to improve readablity of code in soc.c 4. 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-byteaddressing.
But some FlexSPI flash sizes are up to 64MBytes.This flag enables fast read command for AHB mode and modifiesrequired
LUT to support full FlexSPI flash.NXP_FSPI doesn't exist yet.
Do you have dependency I missed?
Please fix your patch asap.
I have created v3[http://patchwork.ozlabs.org/patch/996846/] adding dependency patch information.
Regards Ashish
York