----- Original Message -----
From: "Gadiyar, Anand" <gadiyar@xxxxxx>
To: "V, Hemanth" <hemanthv@xxxxxx>; "Kevin Hilman"
<khilman@xxxxxxxxxxxxxxxxxxx>
>> Index: linux-omap-2.6/arch/arm/mach-omap2/devices.c
>> ===================================================================
>> --- linux-omap-2.6.orig/arch/arm/mach-omap2/devices.c 2009-05-14
>> 12:38:50.000000000 +0530
>> +++ linux-omap-2.6/arch/arm/mach-omap2/devices.c 2009-05-15
>> 16:53:38.000000000 +0530
<snip>
>> };
>>
>> static struct resource omap2_mcspi2_resources[] = {
>> @@ -351,6 +359,14 @@
>>
>> static void omap_init_mcspi(void)
>> {
>> +
>> + if (cpu_is_omap3430()) {
>> + omap_cfg_reg(AA3_3430_McSPI2_CLK);
>> + omap_cfg_reg(Y2_3430_McSPI2_SIMO);
>> + omap_cfg_reg(Y3_3430_McSPI2_SOMI);
>> + omap_cfg_reg(Y4_3430_McSPI2_CS0);
>> + }
>> +
This will change the mux mode for these pads for all OMAP3 boards,
even if they do not wish to use McSPI2. In particular, Beagleboard
will be affected as it uses HSUSB on Port2 and these pads overlap.
I could add an option like below to plat-omap/Kconfig under
OMAP Feature Selections. Kevin, Your thoughts on this
config OMAP3430_ENABLE_SPI2_PIN_MUX
bool "Enable SPI2 pin mux configuration for OMAP3430"
depends on ARCH_OMAP3430
default n
help
Enable pin mux for SPI2 on OMAP3430 platform. Note
that the same pins are used for EHCI port2 operation. Hence
enabling this option effectively disables EHCI port 2 usage.
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