diff options
author | Stephen Warren <swarren@nvidia.com> | 2014-03-21 21:58:03 (GMT) |
---|---|---|
committer | Tom Warren <twarren@nvidia.com> | 2014-04-17 15:41:06 (GMT) |
commit | d381294aef4a5b6ddeda3685519330a5b73d884f (patch) | |
tree | fd371839179dd13fe44f9301ebd2ce491b2a9958 /arch/arm/include/asm/arch-tegra | |
parent | 8f9fd6caafb838bdb0d6a1c0a7e96997aec27b90 (diff) | |
download | u-boot-fsl-qoriq-d381294aef4a5b6ddeda3685519330a5b73d884f.tar.xz |
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/include/asm/arch-tegra')
-rw-r--r-- | arch/arm/include/asm/arch-tegra/pinmux.h | 42 |
1 files changed, 21 insertions, 21 deletions
diff --git a/arch/arm/include/asm/arch-tegra/pinmux.h b/arch/arm/include/asm/arch-tegra/pinmux.h index 80b8046..035159d 100644 --- a/arch/arm/include/asm/arch-tegra/pinmux.h +++ b/arch/arm/include/asm/arch-tegra/pinmux.h @@ -64,18 +64,18 @@ enum pmux_pin_rcv_sel { * available is pinmux_config_table() to configure a list of pins. */ struct pmux_pingrp_config { - enum pmux_pingrp pingrp; /* pin group PMUX_PINGRP_... */ - enum pmux_func func; /* function to assign PMUX_FUNC_... */ - enum pmux_pull pull; /* pull up/down/normal PMUX_PULL_...*/ - enum pmux_tristate tristate; /* tristate or normal PMUX_TRI_... */ + u32 pingrp:16; /* pin group PMUX_PINGRP_... */ + u32 func:8; /* function to assign PMUX_FUNC_... */ + u32 pull:2; /* pull up/down/normal PMUX_PULL_...*/ + u32 tristate:2; /* tristate or normal PMUX_TRI_... */ #ifdef TEGRA_PMX_HAS_PIN_IO_BIT_ETC - enum pmux_pin_io io; /* input or output PMUX_PIN_... */ - enum pmux_pin_lock lock; /* lock enable/disable PMUX_PIN... */ - enum pmux_pin_od od; /* open-drain or push-pull driver */ - enum pmux_pin_ioreset ioreset; /* input/output reset PMUX_PIN... */ + u32 io:2; /* input or output PMUX_PIN_... */ + u32 lock:2; /* lock enable/disable PMUX_PIN... */ + u32 od:2; /* open-drain or push-pull driver */ + u32 ioreset:2; /* input/output reset PMUX_PIN... */ #ifdef TEGRA_PMX_HAS_RCV_SEL - enum pmux_pin_rcv_sel rcv_sel; /* select between High and Normal */ - /* VIL/VIH receivers */ + u32 rcv_sel:2; /* select between High and Normal */ + /* VIL/VIH receivers */ #endif #endif }; @@ -151,14 +151,14 @@ enum pmux_hsm { * This defines the configuration for a pin group's pad control config */ struct pmux_drvgrp_config { - enum pmux_drvgrp drvgrp; /* pin group PMUX_DRVGRP_x */ - int slwf; /* falling edge slew */ - int slwr; /* rising edge slew */ - int drvup; /* pull-up drive strength */ - int drvdn; /* pull-down drive strength */ - enum pmux_lpmd lpmd; /* low-power mode selection */ - enum pmux_schmt schmt; /* schmidt enable */ - enum pmux_hsm hsm; /* high-speed mode enable */ + u32 drvgrp:16; /* pin group PMUX_DRVGRP_x */ + u32 slwf:3; /* falling edge slew */ + u32 slwr:3; /* rising edge slew */ + u32 drvup:8; /* pull-up drive strength */ + u32 drvdn:8; /* pull-down drive strength */ + u32 lpmd:3; /* low-power mode selection */ + u32 schmt:2; /* schmidt enable */ + u32 hsm:2; /* high-speed mode enable */ }; /** @@ -173,10 +173,10 @@ void pinmux_config_drvgrp_table(const struct pmux_drvgrp_config *config, #endif /* TEGRA_PMX_HAS_DRVGRPS */ struct pmux_pingrp_desc { - enum pmux_func funcs[4]; + u8 funcs[4]; #if defined(CONFIG_TEGRA20) - u32 ctl_id; - u32 pull_id; + u8 ctl_id; + u8 pull_id; #endif /* CONFIG_TEGRA20 */ }; |