From patchwork Thu Apr 16 12:11:05 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [3/3,v3] mtd/powerpc: Describe multiple "reg" tuples usage Date: Thu, 16 Apr 2009 02:11:05 -0000 From: Stefan Roese X-Patchwork-Id: 26063 Message-Id: <1239883865-17915-1-git-send-email-sr@denx.de> To: linuxppc-dev@ozlabs.org, linux-mtd@lists.infradead.org Cc: grant.likely@secretlab.ca, devicetree-discuss@ozlabs.org Signed-off-by: Stefan Roese CC: Grant Likely Acked-by: Grant Likely --- Changes in ver3: - Removed reference to Intel P30 parts - Added exact chip compatible property for best practice. Documentation/powerpc/dts-bindings/mtd-physmap.txt | 19 ++++++++++++++++++- 1 files changed, 18 insertions(+), 1 deletions(-) diff --git a/Documentation/powerpc/dts-bindings/mtd-physmap.txt b/Documentation/powerpc/dts-bindings/mtd-physmap.txt index cd474f9..667c9bd 100644 --- a/Documentation/powerpc/dts-bindings/mtd-physmap.txt +++ b/Documentation/powerpc/dts-bindings/mtd-physmap.txt @@ -5,7 +5,9 @@ file systems on embedded devices. - compatible : should contain the specific model of flash chip(s) used, if known, followed by either "cfi-flash" or "jedec-flash" - - reg : Address range of the flash chip + - reg : Address range(s) of the flash chip(s) + It's possible to (optionally) define multiple "reg" tuples so that + non-identical NOR chips can be described in one flash node. - bank-width : Width (in bytes) of the flash bank. Equal to the device width times the number of interleaved chips. - device-width : (optional) Width of a single flash chip. If @@ -61,3 +63,18 @@ Example: read-only; }; }; + +Here an example with multiple "reg" tuples: + + flash@f0000000,0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "intel,PC48F4400P0VB", "cfi-flash"; + reg = <0 0x00000000 0x02000000 + 0 0x02000000 0x02000000>; + bank-width = <2>; + partition@0 { + label = "test-part1"; + reg = <0 0x04000000>; + }; + };