[PATCH 1/1] at91: add support for the at91sam9263ek board of Atmel

Jean-Christophe PLAGNIOL-VILLARD plagnioj at jcrosoft.com
Thu Oct 29 08:40:52 EDT 2009


On 08:43 Thu 29 Oct     , Sascha Hauer wrote:
> Hi Jean,
> 
> [snip]
> 
> > +};
> > +
> > +static int at91sam9263ek_devices_init(void)
> > +{
> > +	/*
> > +	 * PB27 enables the 50MHz oscillator for Ethernet PHY
> > +	 * 1 - enable
> > +	 * 0 - disable
> > +	 */
> > +	at91_set_gpio_output(AT91_PIN_PB27, 1);
> > +	at91_set_gpio_value(AT91_PIN_PB27, 1); /* 1- enable, 0 - disable */
> > +
> > +	/* Enable clock */
> > +	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9263_ID_EMAC);
> > +
> > +	at91_add_device_sdram(64 * 1024 * 1024);
> > +	ek_add_device_nand();
> > +	at91_add_device_eth(&macb_pdata);
> > +	register_device(&cfi_dev);
> > +
> > +#if defined(CONFIG_DRIVER_CFI) || defined(CONFIG_DRIVER_CFI_OLD)
> > +	devfs_add_partition("nor0", 0x00000, 0x40000, PARTITION_FIXED, "self");
> > +	devfs_add_partition("nor0", 0x40000, 0x20000, PARTITION_FIXED, "env0");
> > +#elif defined(CONFIG_NAND_ATMEL)
> > +	devfs_add_partition("nand0", 0x00000, 0x80000, PARTITION_FIXED, "self_raw");
> > +	dev_add_bb_dev("self_raw", "self0");
> > +	devfs_add_partition("nand0", 0x40000, 0x40000, PARTITION_FIXED, "env_raw");
> > +	dev_add_bb_dev("env_raw", "env0");
> > +#endif
> 
> What if both NAND and NOR drivers are selected? On our Freescale boards
> we can detect from which device we actually booted and add these
> partitions arcordingly. I don't know if that's possible here, but I
> think the user wouldn't expect the environment in NOR if he is booting
> from NAND.
Unfortunatetly not on the AT91SAM9 soc of I'd do it dynamcly as you suggest
maybe we could do it in the next generation ;-)

Best Regards,
J.




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