* IO_ADDR_R and IO_ADDR_W
@ 2005-05-25 14:50 Simon Posnjak
0 siblings, 0 replies; only message in thread
From: Simon Posnjak @ 2005-05-25 14:50 UTC (permalink / raw)
To: linux-mtd
Hi,
I am writing a board specific driver. We have Toshiba TC58DVM 32 MB chip
connected over gpio (g) port.
Pins are:
_Data:
_
g8 <-> I/O1
g9 <-> I/O2
g10 <-> I/O3
g11 <-> I/O4
g12 <-> I/O5
g13 <-> I/O6
g14 <-> I/O7
g15 <-> I/O8
_Control:
_
g16 <-- RY/BY
g17 --> /RE
g18 --> /CE
g19 --> CLE
g20 --> ALE
g21 --> /WE
g22 --> /WP
The g port address is 0xB0000028 (32-bit).
My questions are:
1. What address do I have to supply to IO_ADDR_R and IO_ADDR_W fields?
The address of the g port? The g port + 1 (0xB0000029) [so that we start
reading at g8]? Or should I provide a function that reads and writes the
I/O pins?
2. We are using the rest of the pins for some other devices. Will my
driver interfere with there drivers?
Thank you.
Regards Simon
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