@@ -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.
@@ -340,6 +340,10 @@ static struct of_device_id of_flash_match[] = {
.data = (void *)"map_ram",
},
{
+ .compatible = "mtd-rom",
+ .data = (void *)"map_rom",
+ },
+ {
.type = "rom",
.compatible = "direct-mapped"
},
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: Aaron Sierra <asierra@xes-inc.com> --- Documentation/devicetree/bindings/mtd/mtd-physmap.txt | 4 ++-- drivers/mtd/maps/physmap_of.c | 4 ++++ 2 files changed, 6 insertions(+), 2 deletions(-)