On 24/09/12 12:13, Mohammed, Afzal wrote:
> Hi Mark,
>
> On Mon, Sep 24, 2012 at 16:21:40, Mark Jackson wrote:
>> On 24/09/12 05:51, Mohammed, Afzal wrote:
>
>>> It seems you are using PSP Kernel.
>>>
>>> Invoking omap_init_gpmc before gpmc request should help.
>>
>> Okay ... I'm now using earlyprintk and omap_init_gpmc(), but I still get boot hangs.
>
>> Surely omap-gpmc needs to be setup before any calls such as gpmc_cs_request() ?
>>
>> Is there a method to delay my test code, or maybe get the omap-gpmc registered earlier ?
>
> Hope below patch helps you (untested)
>
> Regards
> Afzal
>
> ----8<-------------------
>
> diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
> index 1c53c05..a4c6912 100644
> --- a/arch/arm/mach-omap2/gpmc.c
> +++ b/arch/arm/mach-omap2/gpmc.c
> @@ -827,7 +827,19 @@ static struct platform_driver gpmc_driver = {
> },
> };
>
> -module_platform_driver(gpmc_driver);
> +static __init int gpmc_init(void)
> +{
> + return platform_driver_register(&gpmc_driver);
> +}
> +
> +static __exit void gpmc_exit(void)
> +{
> + platform_driver_unregister(&gpmc_driver);
> +
> +}
> +
> +postcore_initcall(gpmc_init);
> +module_exit(gpmc_exit);
>
> int gpmc_suspend(void)
> {
> ----8<----------------
Perfect !!
I also got it working by adding "late_init()" hooks into arch/arm/kernel/setup.c, but your code is
much simpler.
Regards
Mark J.
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