Re: [PATCH 4/5] BCM2835: add support (arch)

[Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>]

On 09:01 Wed 17 Oct     , Sascha Hauer wrote:
> On Wed, Oct 17, 2012 at 08:51:35AM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > On 23:24 Tue 16 Oct     , Sascha Hauer wrote:
> > > On Tue, Oct 16, 2012 at 08:04:44PM +0200, Carlo Caione wrote:
> > > > +
> > > > +static struct clk ref_3_clk = {
> > > > +	.rate = 3 * 1000 * 1000,
> > > > +};
> > > > +
> > > > +static struct clk ref_1_clk = {
> > > > +	.rate = 1 * 1000 * 1000,
> > > > +};
> > > 
> > > Add a 'select COMMON_CLK' to your Kconfig and do a:
> > > 
> > > 	clk_dummy = clk_fixed("dummy", 0);
> > > 	clk_ref_3 = clk_fixed("ref3", 3 * 1000 * 1000);
> > > 	clk_ref_1 = clk_fixed("ref1", 1 * 1000 * 1000);
> > > 
> > > Then you can drop your clk code and get a clk_dump command
> > > which you can use to see what clocks you have.
> > > 
> > > > +static int bcm2835_gpio_init(void)
> > > > +{
> > > > +	add_generic_device("bcm2835-gpio", 0, NULL, BCM2835_GPIO_BASE, 0xB0, IORESOURCE_MEM, NULL);
> > > > +	return 0;
> > > > +}
> > > > +coredevice_initcall(bcm2835_gpio_init);
> > > > +
> > > > +static int bcm2835_clkdev_init(void)
> > > > +{
> > > > +	clkdev_add_table(clocks_lookups, ARRAY_SIZE(clocks_lookups));
> > > > +	return 0;
> > > > +}
> > > > +postcore_initcall(bcm2835_clkdev_init);
> > > > +
> > > > +static int bcm2835_clocksource_init(void)
> > > > +{
> > > > +	add_generic_device("bcm2835-cs", DEVICE_ID_SINGLE, NULL, BCM2835_ST_BASE, 0x1C, IORESOURCE_MEM, NULL);
> > > > +	return 0;
> > > > +}
> > > > +coredevice_initcall(bcm2835_clocksource_init);
> > > > +
> > > 
> > > Please consolidate the initcalls. A single function for the three above
> > > is enough.
> > > 
> > > > +void bcm2835_register_uart(void)
> > > 
> > > Please add the UART index to the function name.
> > as we discuss no need the uart1 use the same pin as uart0 and is a wired mini
> > uart
> 
> But it has a different register base. How do I decide which one I use?
why use a different at the end it the same pin

Best Regards,
J.

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