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authorVinod Koul <vkoul@kernel.org>2018-12-31 19:31:42 +0530
committerVinod Koul <vkoul@kernel.org>2018-12-31 19:31:42 +0530
commit010299bfc2df19c2c330c75c048805939e5ab91b (patch)
tree077dbb9274da3b36bcbbe4dcfc18f93ac0590074 /include/dt-bindings/dma/dw-dmac.h
parentMerge branch 'topic/dmatest' into for-linus (diff)
parentdmaengine: dw-dmac: implement dma protection control setting (diff)
downloadlinux-dev-010299bfc2df19c2c330c75c048805939e5ab91b.tar.xz
linux-dev-010299bfc2df19c2c330c75c048805939e5ab91b.zip
Merge branch 'topic/dw' into for-linus
Diffstat (limited to 'include/dt-bindings/dma/dw-dmac.h')
-rw-r--r--include/dt-bindings/dma/dw-dmac.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/dt-bindings/dma/dw-dmac.h b/include/dt-bindings/dma/dw-dmac.h
new file mode 100644
index 000000000000..d1ca705c95b3
--- /dev/null
+++ b/include/dt-bindings/dma/dw-dmac.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
+
+#ifndef __DT_BINDINGS_DMA_DW_DMAC_H__
+#define __DT_BINDINGS_DMA_DW_DMAC_H__
+
+/*
+ * Protection Control bits provide protection against illegal transactions.
+ * The protection bits[0:2] are one-to-one mapped to AHB HPROT[3:1] signals.
+ */
+#define DW_DMAC_HPROT1_PRIVILEGED_MODE (1 << 0) /* Privileged Mode */
+#define DW_DMAC_HPROT2_BUFFERABLE (1 << 1) /* DMA is bufferable */
+#define DW_DMAC_HPROT3_CACHEABLE (1 << 2) /* DMA is cacheable */
+
+#endif /* __DT_BINDINGS_DMA_DW_DMAC_H__ */