提交 e5bffb59 编写于 作者: A Aaron Sierra 提交者: Brian Norris

mtd: physmap_of: Add non-obsolete map_rom probe

Previously, the only way to map a NOR device as a simple ROM was to
use the obsolete "direct-mapped" compatible binding (which further
requires device_type = "nor" and probe-type = "NOR" properties).

This patch adds an "mtd-rom" compatible binding to the "map_rom"
probe type.
Signed-off-by: NAaron Sierra <asierra@xes-inc.com>
Signed-off-by: NBrian Norris <computersforpeace@gmail.com>
上级 9b07a8d1
......@@ -4,8 +4,8 @@ Flash chips (Memory Technology Devices) are often used for solid state
file systems on embedded devices.
- compatible : should contain the specific model of mtd chip(s)
used, if known, followed by either "cfi-flash", "jedec-flash"
or "mtd-ram".
used, if known, followed by either "cfi-flash", "jedec-flash",
"mtd-ram" or "mtd-rom".
- reg : Address range(s) of the mtd chip(s)
It's possible to (optionally) define multiple "reg" tuples so that
non-identical chips can be described in one node.
......
......@@ -339,6 +339,10 @@ static struct of_device_id of_flash_match[] = {
.compatible = "mtd-ram",
.data = (void *)"map_ram",
},
{
.compatible = "mtd-rom",
.data = (void *)"map_rom",
},
{
.type = "rom",
.compatible = "direct-mapped"
......
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