The standard rtc-m41t80.c driver cannot be used with the SWARM as it is,
because the board does not provide setup information for the I2C core.
As a result the bus and the address to probe for the M41T80 chip is not
known.
Here is a set of changes that fix the problem:
1. swarm-i2c.c -- SWARM I2C board setup, currently for the M41T80 chip on
the bus #1 only (there is a MAX6654 temperature sensor on the bus #0
which may be added in the future if we have a driver for that chip).
2. The i2c-sibyte.c BCM1250A SMBus controller driver now registers its
buses as numbered so that board setup is correctly applied.
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
---
This iteration fixes the name of the driver from before renaming
mistakenly left in an error message.
Please note this patch trivially depends on
patch-2.6.26-rc1-20080505-swarm-core-16 -- 2/6 of this set.
Maciej
patch-2.6.26-rc1-20080505-swarm-i2c-18
diff -up --recursive --new-file linux-2.6.26-rc1-20080505.macro/arch/mips/sibyte/swarm/Makefile linux-2.6.26-rc1-20080505/arch/mips/sibyte/swarm/Makefile
--- linux-2.6.26-rc1-20080505.macro/arch/mips/sibyte/swarm/Makefile 2008-05-06 01:18:21.000000000 +0000
+++ linux-2.6.26-rc1-20080505/arch/mips/sibyte/swarm/Makefile 2008-05-13 03:11:43.000000000 +0000
@@ -1,3 +1,4 @@
obj-y := setup.o rtc_xicor1241.o rtc_m41t81.o
+obj-$(CONFIG_I2C_BOARDINFO) += swarm-i2c.o
obj-$(CONFIG_KGDB) += dbg_io.o
diff -up --recursive --new-file linux-2.6.26-rc1-20080505.macro/arch/mips/sibyte/swarm/swarm-i2c.c linux-2.6.26-rc1-20080505/arch/mips/sibyte/swarm/swarm-i2c.c
--- linux-2.6.26-rc1-20080505.macro/arch/mips/sibyte/swarm/swarm-i2c.c 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.26-rc1-20080505/arch/mips/sibyte/swarm/swarm-i2c.c 2008-05-13 17:38:52.000000000 +0000
@@ -0,0 +1,37 @@
+/*
+ * arch/mips/sibyte/swarm/swarm-i2c.c
+ *
+ * Broadcom BCM91250A (SWARM), etc. I2C platform setup.
+ *
+ * Copyright (c) 2008 Maciej W. Rozycki
+ *
+ * This ...
