On Mon, 6 Sep 2010 12:32:52 +0200
Ilya Yanok <ya...@emcraft.com> wrote:
> +static void resume_from_sleep(void)
> +{
> + u32 magic = *(u32 *)0;
> +
> + typedef void (*func_t)(void);
> + func_t resume = *(func_t *)4;
> +
> + if (magic == 0xf5153ae5)
> + resume();
> +
> + gd->flags &= ~GD_FLG_SILENT;
> + puts("\nResume from sleep failed: bad magic word\n");
> +}
8308 does not support deep sleep, so it doesn't need this function.
Likewise, PMCCR1 does not exist on 8308, so don't read it.
> +/* Fixed sdram init -- doesn't use serial presence detect.
> + *
> + * This is useful for faster booting in configs where the RAM is unlikely
> + * to be changed, or for things like NAND booting where space is tight.
> + */
> +static long fixed_sdram(void)
> +{
> + immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
> + u32 msize = CONFIG_SYS_DDR_SIZE * 1024 * 1024;
> + u32 msize_log2 = __ilog2(msize);
> +
> + out_be32(&im->sysconf.ddrlaw[0].bar,
> + CONFIG_SYS_DDR_SDRAM_BASE & 0xfffff000);
> + out_be32(&im->sysconf.ddrlaw[0].ar, LBLAWAR_EN | (msize_log2 - 1));
> + out_be32(&im->sysconf.ddrcdr, CONFIG_SYS_DDRCDR_VALUE);
> +
> + /*
> + * Erratum DDR3 requires a 50ms delay after clearing DDRCDR[DDR_cfg],
> + * or the DDR2 controller may fail to initialize correctly.
> + */
> + udelay(50000);
I don't see this erratum on 8308.
-Scott
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