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authorLinus Torvalds <torvalds@linux-foundation.org>2019-03-08 09:07:07 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-03-08 09:07:07 -0800
commit1b37b8c48d2c2d8553f116ec2a75d21056f1fb35 (patch)
treeadf2855d311440fb4c48b2a96a13bdaae28d2b63 /Documentation/devicetree
parentMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid (diff)
parentEDAC/altera: Add separate SDRAM EDAC config (diff)
downloadlinux-dev-1b37b8c48d2c2d8553f116ec2a75d21056f1fb35.tar.xz
linux-dev-1b37b8c48d2c2d8553f116ec2a75d21056f1fb35.zip
Merge tag 'edac_for_5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Pull EDAC updates from Borislav Petkov: - A new EDAC AST 2500 SoC driver (Stefan M Schaeckeler) - New i10nm EDAC driver for Intel 10nm CPUs (Qiuxu Zhuo and Tony Luck) - Altera SDRAM functionality carveout for separate enablement of RAS and SDRAM capabilities on some Altera chips. (Thor Thayer) - The usual round of cleanups and fixes And last but not least: recruit James Morse as a reviewer for the ARM side. * tag 'edac_for_5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: EDAC/altera: Add separate SDRAM EDAC config EDAC, altera: Add missing of_node_put() EDAC, skx_common: Add code to recognise new compound error code EDAC, i10nm: Fix randconfig builds EDAC, i10nm: Add a driver for Intel 10nm server processors EDAC, skx_edac: Delete duplicated code EDAC, skx_common: Separate common code out from skx_edac EDAC: Do not check return value of debugfs_create() functions EDAC: Add James Morse as a reviewer dt-bindings, EDAC: Add Aspeed AST2500 EDAC, aspeed: Add an Aspeed AST2500 EDAC driver
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/edac/aspeed-sdram-edac.txt25
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diff --git a/Documentation/devicetree/bindings/edac/aspeed-sdram-edac.txt b/Documentation/devicetree/bindings/edac/aspeed-sdram-edac.txt
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+Aspeed AST2500 SoC EDAC node
+
+The Aspeed AST2500 SoC supports DDR3 and DDR4 memory with and without ECC (error
+correction check).
+
+The memory controller supports SECDED (single bit error correction, double bit
+error detection) and single bit error auto scrubbing by reserving 8 bits for
+every 64 bit word (effectively reducing available memory to 8/9).
+
+Note, the bootloader must configure ECC mode in the memory controller.
+
+
+Required properties:
+- compatible: should be "aspeed,ast2500-sdram-edac"
+- reg: sdram controller register set should be <0x1e6e0000 0x174>
+- interrupts: should be AVIC interrupt #0
+
+
+Example:
+
+ edac: sdram@1e6e0000 {
+ compatible = "aspeed,ast2500-sdram-edac";
+ reg = <0x1e6e0000 0x174>;
+ interrupts = <0>;
+ };