On Monday 13 July 2015 22:28:35 Michael Welling wrote: > On Mon, Jul 13, 2015 at 07:09:06PM +0200, Pali Rohár wrote: > > Hello, here is my objdump of 4.2-rc2 version: > > > > 00000064 <omap2_mcspi_set_cs>: > > 64: e3003182 movw r3, #386 ; 0x182 > > 68: e19030b3 ldrh r3, [r0, r3] > > 6c: e3130004 tst r3, #4 > > 70: 0a000001 beq 7c > > <omap2_mcspi_set_cs+0x18> 74: e2711001 rsbs > > r1, r1, #1 > > 78: 33a01000 movcc r1, #0 > > 7c: e5902188 ldr r2, [r0, #392] ; 0x188 > > 80: e3520000 cmp r2, #0 > > 84: 012fff1e bxeq lr > > 88: e5923018 ldr r3, [r2, #24] > > 8c: e3510000 cmp r1, #0 > > 90: 13c33601 bicne r3, r3, #1048576 ; > > 0x100000 94: 03833601 orreq r3, r3, #1048576 > > ; 0x100000 98: e5823018 str r3, [r2, > > #24] > > 9c: e5902188 ldr r2, [r0, #392] ; 0x188 > > a0: e5922000 ldr r2, [r2] > > a4: e582302c str r3, [r2, #44] ; 0x2c > > a8: e592302c ldr r3, [r2, #44] ; 0x2c > > ac: e12fff1e bx lr > > I have not been able to duplicate the failure on the hardware that I > have. I dug out my old Beagleboard and added an SPI registration to > the dts. This was the closest hardware that I had to the N900's > processor. > > What is the version of the gcc compiler you are using and where did > you get it from? > I'm using gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) from package gcc-4.6-arm-linux-gnueabi which is available on Ubuntu 12.04 LTS (version 4.6.3-1ubuntu5cross1.62). > For instance, I am using a 4.9.1 compiler that I built using Yocto. > > Also are you using devicetree or the old board file board-rx51.c? I'm using devicetree. -- Pali Rohár pali.rohar@xxxxxxxxx
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