Messages in this thread | | | Date | Thu, 10 Nov 2005 12:44:53 +0100 | From | Pavel Machek <> | Subject | Re: latest mtd changes broke collie |
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Hi!
> > Well, how do I found out? I tried switching to CFI, and it will not > > boot (unable to mount root...). No mtd-related messages as far as I > > can see. There's quite a lot of mtd-related config options, I set them > > like this: > > If the old sharp driver had even a _chance_ of working, then you > presumably have four 8-bit flash chips laid out on a 32-bit bus, and > those chips are compatible with the Intel command set. > > You can CONFIG_MTD_JEDECPROBE, and you want CONFIG_MTD_MAP_BANK_WIDTH=4, > CONFIG_MTD_CFI_I4, CONFIG_MTD_CFI_INTELEXT. > > Check that your chips are listed in the table in jedec_probe.c and turn > on all the debugging in jedec_probe.c
As far as I can see, they are not listed :-(.
static int sharp_probe_map(struct map_info *map,struct mtd_info *mtd) { map_word tmp, read0, read4; int width = 4;
tmp = map_read(map, base+0); sharp_send_cmd(map, CMD_READ_ID, base+0);
read0 = map_read(map, base+0); read4 = map_read(map, base+4); if (read0.x[0] == 0x00b000b0) { switch(read4.x[0]){ case 0x00b000b0: /* a6 - LH28F640BFHE 8 64k * 2 chip blocks*/ mtd->erasesize = 0x10000 * width / 2; mtd->size = 0x800000 * width / 2; return width;
...I've removed unneccessary code, this path is actually taken. Does it mean that mfr == id == 0x00b0? [Notice that comment is wrong there, probably belongs to another chip :-(] Pavel
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