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11407e5713
The HP iPAQ hx4700 has 128Mb of flash provided by two Intel StrataFlash devices. The hx4700 platform configuration defines a single 128Mb flash resource, resulting in the MTD physmap-flash driver probing the first device only and presuming the second device is identical: physmap platform flash device: 08000000 at 00000000 physmap-flash: Found 2 x16 devices at 0x0 in 32-bit bank. Manufacturer ID 0x000089 Chip ID 0x008816 physmap-flash: Found 2 x16 devices at 0x4000000 in 32-bit bank <snip> erase region 0: offset=0x0,size=0x10000,blocks=4 erase region 1: offset=0x40000,size=0x40000,blocks=255 erase region 2: offset=0x4000000,size=0x10000,blocks=4 erase region 3: offset=0x4040000,size=0x40000,blocks=255 physmap-flash: 2 set(s) of 2 interleaved chips --> 32 partitions of 4096 KiB Unfortunately the two devices are not identical. The first has a device ID of 0x8816, identifying a bottom parameter device. The second has a device ID of 0x8813, identifying a top parameter device. By not probing the second device, physmap-flash does not discover the correct block sizes. This patch splits the configuration into two 64Mb flash resources, forcing physmap-flash to probe both devices and thus discover the correct block sizes: physmap platform flash device: 04000000 at 00000000 physmap-flash: Found 2 x16 devices at 0x0 in 32-bit bank. Manufacturer ID 0x000089 Chip ID 0x008816 <snip> erase region 0: offset=0x0,size=0x10000,blocks=4 erase region 1: offset=0x40000,size=0x40000,blocks=255 physmap-flash: 1 set(s) of 2 interleaved chips --> 16 partitions of 4096 KiB physmap platform flash device: 04000000 at 04000000 physmap-flash: Found 2 x16 devices at 0x0 in 32-bit bank. Manufacturer ID 0x000089 Chip ID 0x008813 <snip> erase region 0: offset=0x0,size=0x40000,blocks=255 erase region 1: offset=0x3fc0000,size=0x10000,blocks=4 physmap-flash: 1 set(s) of 2 interleaved chips --> 16 partitions of 4096 KiB Concatenating MTD devices: (0): "physmap-flash" (1): "physmap-flash" into device "physmap-flash" Signed-off-by: Paul Parsons <lost.distance@yahoo.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> |
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