diff options
Diffstat (limited to 'target/linux/apm821xx/patches-4.19/010-dt-bindings-dmaengine-dw-dmac-add-protection-control.patch')
| -rw-r--r-- | target/linux/apm821xx/patches-4.19/010-dt-bindings-dmaengine-dw-dmac-add-protection-control.patch | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/target/linux/apm821xx/patches-4.19/010-dt-bindings-dmaengine-dw-dmac-add-protection-control.patch b/target/linux/apm821xx/patches-4.19/010-dt-bindings-dmaengine-dw-dmac-add-protection-control.patch deleted file mode 100644 index 572b8b6522..0000000000 --- a/target/linux/apm821xx/patches-4.19/010-dt-bindings-dmaengine-dw-dmac-add-protection-control.patch +++ /dev/null @@ -1,74 +0,0 @@ -From 538098281ce884a51d2aa4ab445056a41741c6ad Mon Sep 17 00:00:00 2001 -From: Christian Lamparter <chunkeey@gmail.com> -Date: Sat, 17 Nov 2018 17:17:20 +0100 -Subject: [PATCH] dt-bindings: dmaengine: dw-dmac: add protection control - property - -This patch for the DesignWare AHB Central -Direct Memory Access Controller adds the dma -protection control property: - "snps,dma-protection-control" - -as well as the properties specific values defines into -a new include file: include/dt-bindings/dma/dw-dmac.h - -Note: The protection control signals are one-to-one -mapped to the AHB HPROT[1:3] signals for this controller. -The HPROT0 (Data Access) is always hardwired to 1. - -Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> -Reviewed-by: Rob Herring <robh@kernel.org> -Signed-off-by: Christian Lamparter <chunkeey@gmail.com> -Signed-off-by: Vinod Koul <vkoul@kernel.org> ---- - Documentation/devicetree/bindings/dma/snps-dma.txt | 4 ++++ - MAINTAINERS | 4 +++- - include/dt-bindings/dma/dw-dmac.h | 14 ++++++++++++++ - 3 files changed, 21 insertions(+), 1 deletion(-) - create mode 100644 include/dt-bindings/dma/dw-dmac.h - ---- a/Documentation/devicetree/bindings/dma/snps-dma.txt -+++ b/Documentation/devicetree/bindings/dma/snps-dma.txt -@@ -27,6 +27,10 @@ Optional properties: - general purpose DMA channel allocator. False if not passed. - - multi-block: Multi block transfers supported by hardware. Array property with - one cell per channel. 0: not supported, 1 (default): supported. -+- snps,dma-protection-control: AHB HPROT[3:1] protection setting. -+ The default value is 0 (for non-cacheable, non-buffered, -+ unprivileged data access). -+ Refer to include/dt-bindings/dma/dw-dmac.h for possible values. - - Example: - ---- a/MAINTAINERS -+++ b/MAINTAINERS -@@ -14075,9 +14075,11 @@ SYNOPSYS DESIGNWARE DMAC DRIVER - M: Viresh Kumar <vireshk@kernel.org> - R: Andy Shevchenko <andriy.shevchenko@linux.intel.com> - S: Maintained -+F: Documentation/devicetree/bindings/dma/snps-dma.txt -+F: drivers/dma/dw/ -+F: include/dt-bindings/dma/dw-dmac.h - F: include/linux/dma/dw.h - F: include/linux/platform_data/dma-dw.h --F: drivers/dma/dw/ - - SYNOPSYS DESIGNWARE ENTERPRISE ETHERNET DRIVER - M: Jose Abreu <Jose.Abreu@synopsys.com> ---- /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__ */ |