X-Git-Url: https://git.archive.openwrt.org/?p=openwrt.git;a=blobdiff_plain;f=target%2Flinux%2Fgemini%2Fpatches-3.18%2F060-cache-fa.diff;fp=target%2Flinux%2Fgemini%2Fpatches-3.18%2F060-cache-fa.diff;h=d337607e97ded7cdb72c4b368729c8445b742898;hp=0000000000000000000000000000000000000000;hb=fd2d992e9ab30b132cfff3ee0d0b5b10d789b930;hpb=cae7d258869f6deaf1c3dc3db66860589f17acc6

diff --git a/target/linux/gemini/patches-3.18/060-cache-fa.diff b/target/linux/gemini/patches-3.18/060-cache-fa.diff
new file mode 100644
index 0000000000..d337607e97
--- /dev/null
+++ b/target/linux/gemini/patches-3.18/060-cache-fa.diff
@@ -0,0 +1,41 @@
+--- a/arch/arm/mm/cache-fa.S	2011-01-05 01:50:19.000000000 +0100
++++ b/arch/arm/mm/cache-fa.S	2012-07-25 14:30:40.883639094 +0200
+@@ -24,7 +24,8 @@
+ /*
+  * The size of one data cache line.
+  */
+-#define CACHE_DLINESIZE	16
++#define CACHE_DLINESIZE		16
++#define CACHE_DLINESHIFT	4
+ 
+ /*
+  * The total size of the data cache.
+@@ -169,7 +170,17 @@
+  *	- start  - virtual start address
+  *	- end	 - virtual end address
+  */
++__flush_whole_dcache:
++	mcr	p15, 0, r0, c7, c14, 0		@ clean/invalidate D cache
++	mov	r0, #0
++	mcr	p15, 0, r0, c7, c10, 4		@ drain write buffer
++	mov	pc, lr
++
+ fa_dma_inv_range:
++	sub	r3, r1, r0			@ calculate total size
++	cmp	r3, #CACHE_DLIMIT		@ total size >= limit?
++	bhs	__flush_whole_dcache		@ flush whole D cache
++
+ 	tst	r0, #CACHE_DLINESIZE - 1
+ 	bic	r0, r0, #CACHE_DLINESIZE - 1
+ 	mcrne	p15, 0, r0, c7, c14, 1		@ clean & invalidate D entry
+@@ -193,6 +204,10 @@
+  *	- end	 - virtual end address
+  */
+ fa_dma_clean_range:
++	sub	r3, r1, r0			@ calculate total size
++	cmp	r3, #CACHE_DLIMIT		@ total size >= limit?
++	bhs	__flush_whole_dcache		@ flush whole D cache
++
+ 	bic	r0, r0, #CACHE_DLINESIZE - 1
+ 1:	mcr	p15, 0, r0, c7, c10, 1		@ clean D entry
+ 	add	r0, r0, #CACHE_DLINESIZE