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authorBin Meng <[email protected]>2017-09-12 19:00:23 -0700
committerTom Rini <[email protected]>2017-09-15 08:05:10 -0400
commit723b43daec7ee2ddb600cfcb9b0253d4a71c3915 (patch)
tree44953c1e7fc2634c1e3ec329262d9a3332ba0453 /arch
parent6305db960447ff2d32c335de8bbd9b44cb7d6554 (diff)
blk: Remove various places that do flush cache after read
All these places seem to inherit the codes from the MMC driver where a FIXME was put in the comment. However the correct operation after read should be cache invalidate, not flush. The underlying drivers should be responsible for the cache operation. Remove these codes completely. Signed-off-by: Bin Meng <[email protected]> Reviewed-by: Stefan Roese <[email protected]> Reviewed-by: York Sun <[email protected]> Reviewed-by: Joe Hershberger <[email protected]> Reviewed-by: Simon Glass <[email protected]> Tested-by: York Sun <[email protected]>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/cpu/armv8/fsl-layerscape/ppa.c15
1 files changed, 0 insertions, 15 deletions
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/ppa.c b/arch/arm/cpu/armv8/fsl-layerscape/ppa.c
index 24ddb5d991e..bbf8bba1120 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/ppa.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/ppa.c
@@ -107,9 +107,6 @@ int ppa_init(void)
return -EIO;
}
- /* flush cache after read */
- flush_cache((ulong)fitp, cnt * 512);
-
ret = fdt_check_header(fitp);
if (ret) {
free(fitp);
@@ -134,9 +131,6 @@ int ppa_init(void)
}
debug("Read PPA header to 0x%p\n", ppa_hdr_ddr);
- /* flush cache after read */
- flush_cache((ulong)ppa_hdr_ddr, cnt * 512);
-
ppa_esbc_hdr = (uintptr_t)ppa_hdr_ddr;
#endif
@@ -164,9 +158,6 @@ int ppa_init(void)
return -EIO;
}
- /* flush cache after read */
- flush_cache((ulong)ppa_fit_addr, cnt * 512);
-
#elif defined(CONFIG_SYS_LS_PPA_FW_IN_NAND)
struct fdt_header fit;
@@ -208,9 +199,6 @@ int ppa_init(void)
}
debug("Read PPA header to 0x%p\n", ppa_hdr_ddr);
- /* flush cache after read */
- flush_cache((ulong)ppa_hdr_ddr, fw_length);
-
ppa_esbc_hdr = (uintptr_t)ppa_hdr_ddr;
#endif
@@ -232,9 +220,6 @@ int ppa_init(void)
CONFIG_SYS_LS_PPA_FW_ADDR);
return -EIO;
}
-
- /* flush cache after read */
- flush_cache((ulong)ppa_fit_addr, fw_length);
#else
#error "No CONFIG_SYS_LS_PPA_FW_IN_xxx defined"
#endif