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tegra2: Tidy UART selection

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UART selection is done with a lot of #ifdefs. This cleans things up
a little.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
This commit is contained in:
Simon Glass 2011-11-05 04:46:44 +00:00 • committed by Albert ARIBAUD
parent 8f7431400a
commit 6b5763e588
1 changed files with 34 additions and 23 deletions
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57
board/nvidia/common/board.c
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@ -35,6 +35,12 @@
DECLARE_GLOBAL_DATA_PTR; DECLARE_GLOBAL_DATA_PTR;
enum {
/* UARTs which we can enable */
UARTA = 1 << 0,
UARTD = 1 << 3,
};
const struct tegra2_sysinfo sysinfo = { const struct tegra2_sysinfo sysinfo = {
CONFIG_TEGRA2_BOARD_STRING CONFIG_TEGRA2_BOARD_STRING
}; };
@ -64,36 +70,32 @@ static void enable_uart(enum periph_id pid)
/* /*
* Routine: clock_init_uart * Routine: clock_init_uart
* Description: init the PLL and clock for the UART(s) * Description: init clock for the UART(s)
*/ */
static void clock_init_uart(void) static void clock_init_uart(int uart_ids)
{ {
#if defined(CONFIG_TEGRA2_ENABLE_UARTA) if (uart_ids & UARTA)
enable_uart(PERIPH_ID_UART1); enable_uart(PERIPH_ID_UART1);
#endif /* CONFIG_TEGRA2_ENABLE_UARTA */ if (uart_ids & UARTD)
#if defined(CONFIG_TEGRA2_ENABLE_UARTD) enable_uart(PERIPH_ID_UART4);
enable_uart(PERIPH_ID_UART4);
#endif /* CONFIG_TEGRA2_ENABLE_UARTD */
} }
/* /*
* Routine: pin_mux_uart * Routine: pin_mux_uart
* Description: setup the pin muxes/tristate values for the UART(s) * Description: setup the pin muxes/tristate values for the UART(s)
*/ */
static void pin_mux_uart(void) static void pin_mux_uart(int uart_ids)
{ {
#if defined(CONFIG_TEGRA2_ENABLE_UARTA) if (uart_ids & UARTA) {
pinmux_set_func(PINGRP_IRRX, PMUX_FUNC_UARTA); pinmux_set_func(PINGRP_IRRX, PMUX_FUNC_UARTA);
pinmux_set_func(PINGRP_IRTX, PMUX_FUNC_UARTA); pinmux_set_func(PINGRP_IRTX, PMUX_FUNC_UARTA);
pinmux_tristate_disable(PINGRP_IRRX);
pinmux_tristate_disable(PINGRP_IRRX); pinmux_tristate_disable(PINGRP_IRTX);
pinmux_tristate_disable(PINGRP_IRTX); }
#endif /* CONFIG_TEGRA2_ENABLE_UARTA */ if (uart_ids & UARTD) {
#if defined(CONFIG_TEGRA2_ENABLE_UARTD) pinmux_set_func(PINGRP_GMC, PMUX_FUNC_UARTD);
pinmux_set_func(PINGRP_GMC, PMUX_FUNC_UARTD); pinmux_tristate_disable(PINGRP_GMC);
}
pinmux_tristate_disable(PINGRP_GMC);
#endif /* CONFIG_TEGRA2_ENABLE_UARTD */
} }
/* /*
@ -114,6 +116,15 @@ int board_init(void)
#ifdef CONFIG_BOARD_EARLY_INIT_F #ifdef CONFIG_BOARD_EARLY_INIT_F
int board_early_init_f(void) int board_early_init_f(void)
{ {
int uart_ids = 0; /* bit mask of which UART ids to enable */
#ifdef CONFIG_TEGRA2_ENABLE_UARTA
uart_ids |= UARTA;
#endif
#ifdef CONFIG_TEGRA2_ENABLE_UARTD
uart_ids |= UARTD;
#endif
/* We didn't do this init in start.S, so do it now */ /* We didn't do this init in start.S, so do it now */
cpu_init_cp15(); cpu_init_cp15();
@ -121,10 +132,10 @@ int board_early_init_f(void)
clock_early_init(); clock_early_init();
/* Initialize UART clocks */ /* Initialize UART clocks */
clock_init_uart(); clock_init_uart(uart_ids);
/* Initialize periph pinmuxes */ /* Initialize periph pinmuxes */
pin_mux_uart(); pin_mux_uart(uart_ids);
/* Initialize periph GPIOs */ /* Initialize periph GPIOs */
gpio_config_uart(); gpio_config_uart();