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| author | Stephen Warren <swarren@nvidia.com> | 2014-03-21 15:58:03 -0600 |
|---|---|---|
| committer | Tom Warren <twarren@nvidia.com> | 2014-04-17 08:41:06 -0700 |
| commit | d381294aef4a5b6ddeda3685519330a5b73d884f (patch) | |
| tree | fd371839179dd13fe44f9301ebd2ce491b2a9958 /arch/arm/cpu/tegra-common/pinmux-common.c | |
| parent | 8f9fd6caafb838bdb0d6a1c0a7e96997aec27b90 (diff) | |
| download | blackbird-obmc-uboot-d381294aef4a5b6ddeda3685519330a5b73d884f.tar.gz blackbird-obmc-uboot-d381294aef4a5b6ddeda3685519330a5b73d884f.zip | |
ARM: tegra: pack pinmux data tables tighter
Use smaller fields in the Tegra pinmux structures in order to pack the
data tables into a smaller space. This saves around 1-3KB for the SPL
and around 3-8KB for the main build of U-Boot, depending on the board,
which SoC it uses, and how many pinmux table entries there are.
In order to pack PMUX_FUNC_* into a smaller space, don't hard-code the
values of PMUX_FUNC_RSVD* to values which require 16 bits to store them,
but instead let their values be assigned automatically, so they end up
fitting into 8 bits.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'arch/arm/cpu/tegra-common/pinmux-common.c')
| -rw-r--r-- | arch/arm/cpu/tegra-common/pinmux-common.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/arm/cpu/tegra-common/pinmux-common.c b/arch/arm/cpu/tegra-common/pinmux-common.c index 32a46d53f0..d62618cd0f 100644 --- a/arch/arm/cpu/tegra-common/pinmux-common.c +++ b/arch/arm/cpu/tegra-common/pinmux-common.c @@ -14,8 +14,7 @@ /* return 1 if a pmux_func is in range */ #define pmux_func_isvalid(func) \ - ((((func) >= 0) && ((func) < PMUX_FUNC_COUNT)) || \ - (((func) >= PMUX_FUNC_RSVD1) && ((func) <= PMUX_FUNC_RSVD4))) + (((func) >= 0) && ((func) < PMUX_FUNC_COUNT)) /* return 1 if a pin_pupd_is in range */ #define pmux_pin_pupd_isvalid(pupd) \ @@ -97,8 +96,8 @@ void pinmux_set_func(enum pmux_pingrp pin, enum pmux_func func) assert(pmux_pingrp_isvalid(pin)); assert(pmux_func_isvalid(func)); - if (func & PMUX_FUNC_RSVD1) { - mux = func & 3; + if (func >= PMUX_FUNC_RSVD1) { + mux = (func - PMUX_FUNC_RSVD1) & 3; } else { /* Search for the appropriate function */ for (i = 0; i < 4; i++) { |
