Tamonten is an NVIDIA Tegra2-based SO-DIMM processor module that is derived from the Harmony reference design.
Changes in v3: * Remove unused gpio_config_uart(). * Remove call to tegra2_start(). * Use new tegra2_mmc_init().
Signed-off-by: Thierry Reding thierry.reding@avionic-design.de --- board/avionic-design/common/tamonten.c | 160 ++++++++++++++++++++++++++++++++ board/avionic-design/common/tamonten.h | 32 +++++++ 2 files changed, 192 insertions(+), 0 deletions(-) create mode 100644 board/avionic-design/common/tamonten.c create mode 100644 board/avionic-design/common/tamonten.h
diff --git a/board/avionic-design/common/tamonten.c b/board/avionic-design/common/tamonten.c new file mode 100644 index 0000000..98aa0f8 --- /dev/null +++ b/board/avionic-design/common/tamonten.c @@ -0,0 +1,160 @@ +/* + * (C) Copyright 2010,2011 + * NVIDIA Corporation <www.nvidia.com> + * (C) Copyright 2011 + * Avionic Design GmbH <www.avionic-design.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <ns16550.h> +#include <asm/io.h> +#include <asm/gpio.h> +#include <asm/arch/tegra2.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/clk_rst.h> +#include <asm/arch/clock.h> +#include <asm/arch/pinmux.h> +#include <asm/arch/uart.h> +#include <asm/arch/mmc.h> +#include "tamonten.h" + +#ifdef CONFIG_TEGRA2_MMC +#include <mmc.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +const struct tegra2_sysinfo sysinfo = { + CONFIG_TEGRA2_BOARD_STRING +}; + +/* + * Routine: timer_init + * Description: init the timestamp and lastinc value + */ +int timer_init(void) +{ + return 0; +} + +static void enable_uart(enum periph_id pid) +{ + /* Assert UART reset and enable clock */ + reset_set_enable(pid, 1); + clock_enable(pid); + clock_ll_set_source(pid, 0); /* UARTx_CLK_SRC = 00, PLLP_OUT0 */ + + /* wait for 2us */ + udelay(2); + + /* De-assert reset to UART */ + reset_set_enable(pid, 0); +} + +/* + * Routine: clock_init_uart + * Description: init the PLL and clock for the UART(s) + */ +static void clock_init_uart(void) +{ +#if defined(CONFIG_TEGRA2_ENABLE_UARTD) + enable_uart(PERIPH_ID_UART4); +#endif /* CONFIG_TEGRA2_ENABLE_UARTD */ +} + +/* + * Routine: pin_mux_uart + * Description: setup the pin muxes/tristate values for the UART(s) + */ +static void pin_mux_uart(void) +{ +#if defined(CONFIG_TEGRA2_ENABLE_UARTD) + pinmux_set_func(PINGRP_GMC, PMUX_FUNC_UARTD); + + pinmux_tristate_disable(PINGRP_GMC); +#endif /* CONFIG_TEGRA2_ENABLE_UARTD */ +} + +#ifdef CONFIG_TEGRA2_MMC +/* + * Routine: pin_mux_mmc + * Description: setup the pin muxes/tristate values for the SDMMC(s) + */ +static void pin_mux_mmc(void) +{ + /* SDMMC4: config 3, x8 on 2nd set of pins */ + pinmux_set_func(PINGRP_ATB, PMUX_FUNC_SDIO4); + pinmux_set_func(PINGRP_GMA, PMUX_FUNC_SDIO4); + pinmux_set_func(PINGRP_GME, PMUX_FUNC_SDIO4); + + pinmux_tristate_disable(PINGRP_ATB); + pinmux_tristate_disable(PINGRP_GMA); + pinmux_tristate_disable(PINGRP_GME); +} +#endif + +/* + * Routine: board_init + * Description: Early hardware init. + */ +int board_init(void) +{ + clock_init(); + clock_verify(); + + /* boot param addr */ + gd->bd->bi_boot_params = (NV_PA_SDRAM_BASE + 0x100); + + return 0; +} + +#ifdef CONFIG_TEGRA2_MMC +/* this is a weak define that we are overriding */ +int board_mmc_init(bd_t *bd) +{ + debug("board_mmc_init called\n"); + /* Enable muxes, etc. for SDMMC controllers */ + pin_mux_mmc(); + gpio_config_mmc(); + + debug("board_mmc_init: init eMMC\n"); + /* init dev 0, eMMC chip, with 4-bit bus */ + tegra2_mmc_init(0, 4, -1, GPIO_PH2); + + return 0; +} +#endif + +#ifdef CONFIG_BOARD_EARLY_INIT_F +int board_early_init_f(void) +{ + /* Initialize essential common plls */ + clock_early_init(); + + /* Initialize UART clocks */ + clock_init_uart(); + + /* Initialize periph pinmuxes */ + pin_mux_uart(); + + return 0; +} +#endif /* EARLY_INIT */ diff --git a/board/avionic-design/common/tamonten.h b/board/avionic-design/common/tamonten.h new file mode 100644 index 0000000..0e60b0f --- /dev/null +++ b/board/avionic-design/common/tamonten.h @@ -0,0 +1,32 @@ +/* + * (C) Copyright 2010,2011 + * NVIDIA Corporation <www.nvidia.com> + * (C) Copyright 2011 + * Avionic Design GmbH <www.avionic-design.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _TAMONTEN_H_ +#define _TAMONTEN_H_ + +void tegra2_start(void); +void gpio_config_mmc(void); + +#endif /* TAMONTEN_H */