On Thu, 19 Feb 2015 14:59:16 +0100 Hans de Goede <[email protected]> wrote:
> Older linux-sunxi-3.4 kernels override our PLL6 setting with 300 MHz, > halving the mbus frequency, so set it to 300 MHz ourselves and base the > mbus divider on that. > > Signed-off-by: Hans de Goede <[email protected]> > --- > arch/arm/include/asm/arch-sunxi/clock_sun4i.h | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/arch/arm/include/asm/arch-sunxi/clock_sun4i.h > b/arch/arm/include/asm/arch-sunxi/clock_sun4i.h > index d297ed0..c28ee05 100644 > --- a/arch/arm/include/asm/arch-sunxi/clock_sun4i.h > +++ b/arch/arm/include/asm/arch-sunxi/clock_sun4i.h > @@ -144,7 +144,16 @@ struct sunxi_ccm_reg { > > #define PLL1_CFG_DEFAULT 0xa1005000 > > +#if defined CONFIG_OLD_SUNXI_KERNEL_COMPAT && defined CONFIG_MACH_SUN5I > +/* > + * Older linux-sunxi-3.4 kernels override our PLL6 setting with 300 MHz, > + * halving the mbus frequency, so set it to 300 MHz ourselves and base the > + * mbus divider on that. > + */ > +#define PLL6_CFG_DEFAULT 0xa1009900 > +#else > #define PLL6_CFG_DEFAULT 0xa1009911 > +#endif > > /* nand clock */ > #define NAND_CLK_SRC_OSC24 0 Are there any good reasons to use 600MHz instead of 300MHz for PLL6 in the default u-boot build? Maybe PLL6 can be just set to 300MHz for sun5i in all cases, regardless of the CONFIG_OLD_SUNXI_KERNEL_COMPAT define? -- Best regards, Siarhei Siamashka _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
