MTD: NAND: JZ4740: Multi-bank support with autodetection
The platform data can now specify which external memory banks to probe
for NAND chips, and in which order. Banks that contain a NAND are used
and the other banks are freed.
Squashed version of development done in jz-2.6.38 branch.
Original patch by Lars-Peter Clausen with some bug fixes from me.
Thanks to Paul Cercueil for the initial autodetection patch.
Signed-off-by: Maarten ter Huurne <maarten@treewalker.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3560/
Acked-By: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/jz4740/platform.c b/arch/mips/jz4740/platform.c
index 10929e2..e342ed4 100644
--- a/arch/mips/jz4740/platform.c
+++ b/arch/mips/jz4740/platform.c
@@ -157,11 +157,29 @@
.flags = IORESOURCE_MEM,
},
{
- .name = "bank",
+ .name = "bank1",
.start = 0x18000000,
.end = 0x180C0000 - 1,
.flags = IORESOURCE_MEM,
},
+ {
+ .name = "bank2",
+ .start = 0x14000000,
+ .end = 0x140C0000 - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .name = "bank3",
+ .start = 0x0C000000,
+ .end = 0x0C0C0000 - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .name = "bank4",
+ .start = 0x08000000,
+ .end = 0x080C0000 - 1,
+ .flags = IORESOURCE_MEM,
+ },
};
struct platform_device jz4740_nand_device = {