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| author | Hans de Goede <hdegoede@redhat.com> | 2015-02-19 14:46:44 +0100 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2015-02-21 16:53:37 +0100 |
| commit | f388a26d1132dae7ffe123cd7bd9adf78d4f7b57 (patch) | |
| tree | 127de1c00345fab1969b5291b6e19fbaf6f98e89 | |
| parent | 52defe8f65700ad625c3ca63f723564210b2dc82 (diff) | |
| download | u-boot-imx-f388a26d1132dae7ffe123cd7bd9adf78d4f7b57.zip u-boot-imx-f388a26d1132dae7ffe123cd7bd9adf78d4f7b57.tar.gz u-boot-imx-f388a26d1132dae7ffe123cd7bd9adf78d4f7b57.tar.bz2 | |
sunxi: Fix sun5i mbus speed when booting old kernels
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 <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
| -rw-r--r-- | arch/arm/include/asm/arch-sunxi/clock_sun4i.h | 9 |
1 files changed, 9 insertions, 0 deletions
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 |