Hello there,
i just wrote a little kernel-module, which only executes the following
lines of code:
u32 syn_mode;
void* iomem;
struct resource* resource_ptr;
resource_ptr = request_mem_region(0x480BC000, 0xFFF, "isp_ccdc");
iomem = ioremap(OMAP3ISP_REG(ISP_SYSCONFIG), 8);
if(iomem == NULL) {
printk("ioremap returned zero\n");
return 0;
}
syn_mode = ioread32(iomem);
The resulting behaviour does not depend on which ISP register i am
trying to read, it also happens for "OMAP3ISP_CCDC_REG_BASE +
ISPCCDC_SYN_MODE" for example. And also when using
"omap_readl(address)" to read those registers.
So when this code is executed i get:
Unhandled fault: external abort on non-linefetch (0x1028) at 0xd80bc004
Internal error: : 1028 [#1] PREEMPT
Internal error: : 1028 [#1] PREEMPT
Modules linked in:Modules linked in: camera(+) camera(+) ipv6 ipv6
CPU: 0 Not tainted (2.6.28-omap1 #15)
[...]
Hope someone can help me with what might be wrong.
Thank you,
Matthias
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