[U-Boot] [PATCH v2 1/3] tegra2: Add common Avionic Design Tamonten support.

[Simon Glass]

Hi Thierry,

On Mon, Nov 14, 2011 at 11:27 PM, Thierry Reding
<thierry.reding at avionic-design.de> wrote:
> Tamonten is an NVIDIA Tegra2-based SO-DIMM processor module that is
> derived from the Harmony reference design.
>
> Signed-off-by: Thierry Reding <thierry.reding at avionic-design.de>
> ---
>  board/avionic-design/common/tamonten.c |  164 ++++++++++++++++++++++++++++++++

Most of this file is copied from board/nvidia/common/board.c.

I wonder if we should move some of this to arch/arm/cpu/armv7/tegra-common?

Regards,
Simon


>  board/avionic-design/common/tamonten.h |   34 +++++++
>  2 files changed, 198 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..05f9021
> --- /dev/null
> +++ b/board/avionic-design/common/tamonten.c
> @@ -0,0 +1,164 @@
> +/*
> + *  (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/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 "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 */
> +}

Same with this one.


> +
> +#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

This one is duplication also but since the high-level pinmux stuff is
yet to come, I am fine with it. When we switch over we can refactor
this.

> +
> +/*
> + * 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);
> +
> +       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();
> +
> +       /* Initialize periph GPIOs */
> +       gpio_config_uart();
> +
> +       /* Init UART, scratch regs, and start CPU */
> +       tegra2_start();
> +       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..802bc51
> --- /dev/null
> +++ b/board/avionic-design/common/tamonten.h
> @@ -0,0 +1,34 @@
> +/*
> + *  (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_uart(void);
> +void gpio_config_mmc(void);
> +int tegra2_mmc_init(int dev_index, int bus_width);
> +
> +#endif /* TAMONTEN_H */
> --
> 1.7.7.3
>
>