[U-Boot] [PATCH 1/2] mx6qsabre_common: Enable DCACHE and CONFIG_MMC_BOUNCE_BUFFER
From: Fabio Estevam fabio.estevam@freescale.com
Data cache and CONFIG_MMC_BOUNCE_BUFFER can be safely enabled now.
Signed-off-by: Fabio Estevam fabio.estevam@freescale.com --- include/configs/mx6qsabre_common.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/include/configs/mx6qsabre_common.h b/include/configs/mx6qsabre_common.h index e25e943..bfb9cd4 100644 --- a/include/configs/mx6qsabre_common.h +++ b/include/configs/mx6qsabre_common.h @@ -45,6 +45,7 @@ #define CONFIG_MMC #define CONFIG_CMD_MMC #define CONFIG_GENERIC_MMC +#define CONFIG_MMC_BOUNCE_BUFFER #define CONFIG_CMD_EXT2 #define CONFIG_CMD_FAT #define CONFIG_DOS_PARTITION @@ -168,8 +169,6 @@
#define CONFIG_OF_LIBFDT
-#define CONFIG_SYS_DCACHE_OFF - #ifndef CONFIG_SYS_DCACHE_OFF #define CONFIG_CMD_CACHE #endif
From: Fabio Estevam fabio.estevam@freescale.com
Data cache and CONFIG_MMC_BOUNCE_BUFFER can be safely enabled now.
Signed-off-by: Fabio Estevam fabio.estevam@freescale.com --- include/configs/mx6qarm2.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/include/configs/mx6qarm2.h b/include/configs/mx6qarm2.h index 965bea3..b425fed 100644 --- a/include/configs/mx6qarm2.h +++ b/include/configs/mx6qarm2.h @@ -50,6 +50,7 @@ #define CONFIG_MMC #define CONFIG_CMD_MMC #define CONFIG_GENERIC_MMC +#define CONFIG_MMC_BOUNCE_BUFFER #define CONFIG_CMD_FAT #define CONFIG_DOS_PARTITION
@@ -164,6 +165,4 @@ #define CONFIG_OF_LIBFDT #define CONFIG_CMD_BOOTZ
-#define CONFIG_SYS_DCACHE_OFF - #endif /* __CONFIG_H */
-----Original Message----- From: u-boot-bounces@lists.denx.de [mailto:u-boot-bounces@lists.denx.de] On Behalf Of Fabio Estevam Sent: Thursday, October 18, 2012 1:33 AM To: sbabic@denx.de Cc: Estevam Fabio-R49496; u-boot@lists.denx.de Subject: [U-Boot] [PATCH 2/2] mx6qarm2: Enable DCACHE and CONFIG_MMC_BOUNCE_BUFFER
From: Fabio Estevam fabio.estevam@freescale.com
Data cache and CONFIG_MMC_BOUNCE_BUFFER can be safely enabled now.
Why we need enable CONFIG_MMC_BOUNCE_BUFFER?
Signed-off-by: Fabio Estevam fabio.estevam@freescale.com
include/configs/mx6qarm2.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/include/configs/mx6qarm2.h b/include/configs/mx6qarm2.h index 965bea3..b425fed 100644 --- a/include/configs/mx6qarm2.h +++ b/include/configs/mx6qarm2.h @@ -50,6 +50,7 @@ #define CONFIG_MMC #define CONFIG_CMD_MMC #define CONFIG_GENERIC_MMC +#define CONFIG_MMC_BOUNCE_BUFFER #define CONFIG_CMD_FAT #define CONFIG_DOS_PARTITION
@@ -164,6 +165,4 @@ #define CONFIG_OF_LIBFDT #define CONFIG_CMD_BOOTZ
-#define CONFIG_SYS_DCACHE_OFF
#endif /* __CONFIG_H */
1.7.9.5
U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
Hi Jason,
On Wed, Oct 17, 2012 at 11:29 PM, Liu Hui-R64343 r64343@freescale.com wrote:
Why we need enable CONFIG_MMC_BOUNCE_BUFFER?
I learned the following from Marek:
"you can't flush cache over unaligned addresses so .. to make DMA work, we use the bounce buffer so the address is cache aligned"
Regards,
Fabio Estevam
Am 17/10/2012 19:33, schrieb Fabio Estevam:
From: Fabio Estevam fabio.estevam@freescale.com
Data cache and CONFIG_MMC_BOUNCE_BUFFER can be safely enabled now.
Signed-off-by: Fabio Estevam fabio.estevam@freescale.com
Applied to u-boot-imx, thanks.
Best regards, Stefano Babic
Am 17/10/2012 19:33, schrieb Fabio Estevam:
From: Fabio Estevam fabio.estevam@freescale.com
Data cache and CONFIG_MMC_BOUNCE_BUFFER can be safely enabled now.
Signed-off-by: Fabio Estevam fabio.estevam@freescale.com
Applied to u-boot-imx, thanks.
Best regards, Stefano Babic
participants (3)
-
Fabio Estevam -
Liu Hui-R64343 -
Stefano Babic