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usb: r8a66597-hcd: add function for external controller

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R8A66597 has the pin of WR0 and WR1. So, if one write-pin of CPU
connects to the pins, we have to change the setting of FIFOSEL
register in the controller. If we don't change the setting,
the controller cannot send the data of odd length.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Yoshihiro Shimoda 2011-07-07 09:57:10 +09:00 • committed by Greg Kroah-Hartman
parent 81463c1d70
commit f2e9039a43
3 changed files with 25 additions and 18 deletions
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3
include/linux/usb/r8a66597.h
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@ -42,6 +42,9 @@ struct r8a66597_platdata {
/* set one = big endian, set zero = little endian */
unsigned endian:1;
/* (external controller only) set one = WR0_N shorted to WR1_N */
unsigned wr0_shorted_to_wr1:1;
};
/* Register definitions */