From c4f82c2452340e982b0612cf626a53f9b17fa2d9 Mon Sep 17 00:00:00 2001 From: florian Date: Tue, 15 Jul 2008 10:22:28 +0000 Subject: [PATCH] Fix the CF serial number byteswapping (#3133) git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11837 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- target/linux/rb532/files/drivers/block/rb500/ata.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/target/linux/rb532/files/drivers/block/rb500/ata.c b/target/linux/rb532/files/drivers/block/rb500/ata.c index e4085c27a..31e6782fa 100644 --- a/target/linux/rb532/files/drivers/block/rb500/ata.c +++ b/target/linux/rb532/files/drivers/block/rb500/ata.c @@ -358,6 +358,8 @@ static int do_identify(struct cf_mips_dev *dev) u16 sbuf[CF_SECT_SIZE >> 1]; int res; char tstr[17]; //serial + char tmp; + int i; BUG_ON(dev->tstate!=TS_IDLE); dev->tbuf = (char *) sbuf; dev->tbuf_size = CF_SECT_SIZE; @@ -381,8 +383,16 @@ static int do_identify(struct cf_mips_dev *dev) dev->spt = sbuf[6]; dev->sectors = ((unsigned long) sbuf[7] << 16) | sbuf[8]; dev->dtype=sbuf[0]; - memcpy(tstr,&sbuf[12],16); - tstr[16]=0; + memcpy(tstr, &sbuf[12], 16); + tstr[16] = '\0'; + + /* Byte-swap the serial number */ + for (i = 0; i<8; i++) { + tmp = tstr[i * 2]; + tstr[i * 2] = tstr[i * 2 +1]; + tstr[i * 2 + 1] = tmp; + } + printk(KERN_INFO "cf-mips: %s detected, C/H/S=%d/%d/%d sectors=%u (%uMB) Serial=%s\n", (sbuf[0] == 0x848A ? "CF card" : "ATA drive"), dev->cyl, dev->head, dev->spt, dev->sectors, dev->sectors >> 11, tstr); -- 2.20.1