From 173935f3619ae99fef0cea1dbe4de9c83d6c8e72 Mon Sep 17 00:00:00 2001 From: Vitaly Wool Date: Tue, 19 Dec 2006 18:44:25 +0300 Subject: [PATCH] [POWERPC] Update MTD OF documentation This updates the Documentation/powerpc part of the MTD OF implementation with the new field probe-type. Its support has already been implemented in MTD part (drivers/mtd/maps/physmap_of.c). Signed-off-by: Vitaly Wool Acked-by: Sergei Shtylyov Signed-off-by: Paul Mackerras --- Documentation/powerpc/booting-without-of.txt | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt index b3bd36668db3..33994271cb3b 100644 --- a/Documentation/powerpc/booting-without-of.txt +++ b/Documentation/powerpc/booting-without-of.txt @@ -1703,29 +1703,32 @@ platforms are moved over to use the flattened-device-tree model. Required properties: - device_type : has to be "rom" - - compatible : Should specify what this ROM device is compatible with - (i.e. "onenand"). Currently, this is most likely to be "direct-mapped" - (which corresponds to the MTD physmap mapping driver). - - regs : Offset and length of the register set (or memory mapping) for + - compatible : Should specify what this flash device is compatible with. + Currently, this is most likely to be "direct-mapped" (which + corresponds to the MTD physmap mapping driver). + - reg : Offset and length of the register set (or memory mapping) for the device. + - bank-width : Width of the flash data bus in bytes. Required + for the NOR flashes (compatible == "direct-mapped" and others) ONLY. Recommended properties : - - bank-width : Width of the flash data bus in bytes. Required - for the NOR flashes (compatible == "direct-mapped" and others) ONLY. - partitions : Several pairs of 32-bit values where the first value is partition's offset from the start of the device and the second one is partition size in bytes with LSB used to signify a read only - partititon (so, the parition size should always be an even number). + partition (so, the parition size should always be an even number). - partition-names : The list of concatenated zero terminated strings representing the partition names. + - probe-type : The type of probe which should be done for the chip + (JEDEC vs CFI actually). Valid ONLY for NOR flashes. Example: flash@ff000000 { device_type = "rom"; compatible = "direct-mapped"; - regs = ; + probe-type = "CFI"; + reg = ; bank-width = <4>; partitions = <00000000 00f80000 00f80000 00080001>; -- 2.20.1