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| author | Simon Glass <sjg@chromium.org> | 2012-01-11 12:42:23 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-02-12 10:11:22 +0100 |
| commit | 2faf1863de7a69c3bc687ce8dba78d29bb821082 (patch) | |
| tree | da4a614bfc10d8baed35cc41537993d37415db45 /arch | |
| parent | d693969daa961d77c9f68e6868866509522eeb97 (diff) | |
| download | u-boot-imx-2faf1863de7a69c3bc687ce8dba78d29bb821082.zip u-boot-imx-2faf1863de7a69c3bc687ce8dba78d29bb821082.tar.gz u-boot-imx-2faf1863de7a69c3bc687ce8dba78d29bb821082.tar.bz2 | |
tegra: Add enum to select from available funcmux configs
We want to give a name to each available funcmux config. For now we just
use the pin group names (even through it is verbose) since there seems
to be nothing better.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/cpu/armv7/tegra2/board.c | 2 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/tegra2/funcmux.c | 9 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-tegra2/funcmux.h | 12 |
3 files changed, 17 insertions, 6 deletions
diff --git a/arch/arm/cpu/armv7/tegra2/board.c b/arch/arm/cpu/armv7/tegra2/board.c index 404d34c..8e28d08 100644 --- a/arch/arm/cpu/armv7/tegra2/board.c +++ b/arch/arm/cpu/armv7/tegra2/board.c @@ -120,7 +120,7 @@ static void setup_uarts(int uart_ids) if (uart_ids & (1 << i)) { enum periph_id id = id_for_uart[i]; - funcmux_select(id, 0); + funcmux_select(id, FUNCMUX_DEFAULT); clock_ll_start_uart(id); } } diff --git a/arch/arm/cpu/armv7/tegra2/funcmux.c b/arch/arm/cpu/armv7/tegra2/funcmux.c index d3496c5..662ce92 100644 --- a/arch/arm/cpu/armv7/tegra2/funcmux.c +++ b/arch/arm/cpu/armv7/tegra2/funcmux.c @@ -22,15 +22,16 @@ /* Tegra2 high-level function multiplexing */ #include <common.h> #include <asm/arch/clock.h> +#include <asm/arch/funcmux.h> #include <asm/arch/pinmux.h> int funcmux_select(enum periph_id id, int config) { - int bad_config = config != 0; + int bad_config = config != FUNCMUX_DEFAULT; switch (id) { case PERIPH_ID_UART1: - if (config == 0) { + if (config == FUNCMUX_UART1_IRRX_IRTX) { pinmux_set_func(PINGRP_IRRX, PMUX_FUNC_UARTA); pinmux_set_func(PINGRP_IRTX, PMUX_FUNC_UARTA); pinmux_tristate_disable(PINGRP_IRRX); @@ -52,14 +53,14 @@ int funcmux_select(enum periph_id id, int config) break; case PERIPH_ID_UART2: - if (config == 0) { + if (config == FUNCMUX_UART2_IRDA) { pinmux_set_func(PINGRP_UAD, PMUX_FUNC_IRDA); pinmux_tristate_disable(PINGRP_UAD); } break; case PERIPH_ID_UART4: - if (config == 0) { + if (config == FUNCMUX_UART4_GMC) { pinmux_set_func(PINGRP_GMC, PMUX_FUNC_UARTD); pinmux_tristate_disable(PINGRP_GMC); } diff --git a/arch/arm/include/asm/arch-tegra2/funcmux.h b/arch/arm/include/asm/arch-tegra2/funcmux.h index d4f9cfb..791f301 100644 --- a/arch/arm/include/asm/arch-tegra2/funcmux.h +++ b/arch/arm/include/asm/arch-tegra2/funcmux.h @@ -24,6 +24,16 @@ #ifndef __FUNCMUX_H #define __FUNCMUX_H +/* Configs supported by the func mux */ +enum { + FUNCMUX_DEFAULT = 0, /* default config */ + + /* UART configs */ + FUNCMUX_UART1_IRRX_IRTX = 0, + FUNCMUX_UART2_IRDA = 0, + FUNCMUX_UART4_GMC = 0, +}; + /** * Select a config for a particular peripheral. * @@ -36,7 +46,7 @@ * so that they operate in normal mode. * * @param id Peripheral id - * @param config Configuration to use (generally 0) + * @param config Configuration to use (FUNCMUX_...), 0 for default * @return 0 if ok, -1 on error (e.g. incorrect id or config) */ int funcmux_select(enum periph_id id, int config); |