diff options
author | Tom Warren <twarren.nvidia@gmail.com> | 2014-01-24 17:16:22 (GMT) |
---|---|---|
committer | Tom Warren <twarren@nvidia.com> | 2014-02-03 16:46:45 (GMT) |
commit | c82014daf5ed8030d2ec5903bd51b5ab817fb000 (patch) | |
tree | 6f3ef330baf44f4cbc6bfa304b9d557e0c074dac /arch/arm/cpu/tegra-common | |
parent | 04b8e8e7452a4cd00003e33a5a736bd077ff3471 (diff) | |
download | u-boot-c82014daf5ed8030d2ec5903bd51b5ab817fb000.tar.xz |
ARM: tegra: implement MASK_BITS_31_29
Some clock sources have 3-bit muxes in bits 31:29. Implement core
support for this mux field.
Signed-off-by: Tom Warren <twarren@nvidia.com>
[swarren, extracted from a larger patch by Tom]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'arch/arm/cpu/tegra-common')
-rw-r--r-- | arch/arm/cpu/tegra-common/clock.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/arch/arm/cpu/tegra-common/clock.c b/arch/arm/cpu/tegra-common/clock.c index 96b705f..33bb190 100644 --- a/arch/arm/cpu/tegra-common/clock.c +++ b/arch/arm/cpu/tegra-common/clock.c @@ -304,13 +304,27 @@ static int adjust_periph_pll(enum periph_id periph_id, int source, /* work out the source clock and set it */ if (source < 0) return -1; - if (mux_bits == MASK_BITS_31_28) { - clrsetbits_le32(reg, OUT_CLK_SOURCE_31_28_MASK, - source << OUT_CLK_SOURCE_31_28_SHIFT); - } else { + + switch (mux_bits) { + case MASK_BITS_31_30: clrsetbits_le32(reg, OUT_CLK_SOURCE_31_30_MASK, source << OUT_CLK_SOURCE_31_30_SHIFT); + break; + + case MASK_BITS_31_29: + clrsetbits_le32(reg, OUT_CLK_SOURCE_31_29_MASK, + source << OUT_CLK_SOURCE_31_29_SHIFT); + break; + + case MASK_BITS_31_28: + clrsetbits_le32(reg, OUT_CLK_SOURCE_31_28_MASK, + source << OUT_CLK_SOURCE_31_28_SHIFT); + break; + + default: + return -1; } + udelay(2); return 0; } |