On Sat, Oct 20, 2012 at 12:08 AM, Allen Martin <amar...@nvidia.com> wrote:
> Change tegra SPL to use common SPL framework. Any tegra specific
> initialization is now done in spl_board_init() instead of
> board_init_f()/board_init_r(). Only one SPL boot target is supported
> on tegra, which is boot to RAM image. jump_to_image_no_args() must be
> overridden on tegra so the host CPU can be initialized.
>
> Signed-off-by: Allen Martin <amar...@nvidia.com>
Acked-by: Simon Glass <s...@chromium.org>
Tested-by: Simon Glass <s...@chromium.org>
> ---
> v2: Add back some required headers to avoid compiler warnings
> ---
> arch/arm/cpu/arm720t/tegra-common/spl.c | 91
> +++++--------------------------
> arch/arm/include/asm/arch-tegra20/spl.h | 28 ++++++++++
> include/configs/tegra20-common.h | 4 ++
> 3 files changed, 46 insertions(+), 77 deletions(-)
> create mode 100644 arch/arm/include/asm/arch-tegra20/spl.h
>
> diff --git a/arch/arm/cpu/arm720t/tegra-common/spl.c
> b/arch/arm/cpu/arm720t/tegra-common/spl.c
> index 0d37ce8..c280ab7 100644
> --- a/arch/arm/cpu/arm720t/tegra-common/spl.c
> +++ b/arch/arm/cpu/arm720t/tegra-common/spl.c
> @@ -23,105 +23,42 @@
> * MA 02111-1307 USA
> */
> #include <common.h>
> -#include <asm/u-boot.h>
> -#include <asm/utils.h>
> -#include <nand.h>
> -#include <mmc.h>
> -#include <fat.h>
> -#include <version.h>
> -#include <i2c.h>
> -#include <image.h>
> -#include <malloc.h>
> -#include <linux/compiler.h>
> #include "cpu.h"
> +#include <spl.h>
>
> #include <asm/io.h>
> #include <asm/arch/clock.h>
> #include <asm/arch/pinmux.h>
> #include <asm/arch/tegra.h>
> #include <asm/arch-tegra/board.h>
> -#include <asm/arch-tegra/clk_rst.h>
> -#include <asm/arch-tegra/pmc.h>
> -#include <asm/arch-tegra/scu.h>
> -#include <asm/arch-tegra/sys_proto.h>
> +#include <asm/arch/spl.h>
>
> -DECLARE_GLOBAL_DATA_PTR;
>
> -/* Define global data structure pointer to it*/
> -static gd_t gdata __attribute__ ((section(".data")));
> -static bd_t bdata __attribute__ ((section(".data")));
> -
> -inline void hang(void)
> +void spl_board_init(void)
> {
> - puts("### ERROR ### Please RESET the board ###\n");
> - for (;;)
> - ;
> -}
> + struct pmux_tri_ctlr *pmt = (struct pmux_tri_ctlr
> *)NV_PA_APB_MISC_BASE;
> +
> + /* enable JTAG */
> + writel(0xC0, &pmt->pmt_cfg_ctl);
>
> -void board_init_f(ulong dummy)
> -{
> board_init_uart_f();
>
> /* Initialize periph GPIOs */
> gpio_early_init_uart();
>
> - /*
> - * We call relocate_code() with relocation target same as the
> - * CONFIG_SYS_SPL_TEXT_BASE. This will result in relocation getting
> - * skipped. Instead, only .bss initialization will happen. That's
> - * all we need
> - */
> - debug(">>board_init_f()\n");
> - relocate_code(CONFIG_SPL_STACK, &gdata, CONFIG_SPL_TEXT_BASE);
> + clock_early_init();
> + preloader_console_init();
> }
>
> -/* This requires UART clocks to be enabled */
> -static void preloader_console_init(void)
> +u32 spl_boot_device(void)
> {
> - const char *u_boot_rev = U_BOOT_VERSION;
> -
> - gd = &gdata;
> - gd->bd = &bdata;
> - gd->flags |= GD_FLG_RELOC;
> - gd->baudrate = CONFIG_BAUDRATE;
> -
> - serial_init(); /* serial communications setup */
> -
> - gd->have_console = 1;
> -
> - /* Avoid a second "U-Boot" coming from this string */
> - u_boot_rev = &u_boot_rev[7];
> -
> - printf("\nU-Boot SPL %s (%s - %s)\n", u_boot_rev, U_BOOT_DATE,
> - U_BOOT_TIME);
> + return BOOT_DEVICE_RAM;
> }
>
> -void board_init_r(gd_t *id, ulong dummy)
> +void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
> {
> - struct pmux_tri_ctlr *pmt = (struct pmux_tri_ctlr
> *)NV_PA_APB_MISC_BASE;
> -
> - /* enable JTAG */
> - writel(0xC0, &pmt->pmt_cfg_ctl);
> -
> - debug(">>spl:board_init_r()\n");
> -
> - mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
> - CONFIG_SYS_SPL_MALLOC_SIZE);
> -
> -#ifdef CONFIG_SPL_BOARD_INIT
> - spl_board_init();
> -#endif
> + debug("image entry point: 0x%X\n", spl_image->entry_point);
>
> - clock_early_init();
> - serial_init();
> - preloader_console_init();
> -
> - start_cpu((u32)CONFIG_SYS_TEXT_BASE);
> + start_cpu((u32)spl_image->entry_point);
> halt_avp();
> - /* not reached */
> -}
> -
> -int board_usb_init(const void *blob)
> -{
> - return 0;
> }
> diff --git a/arch/arm/include/asm/arch-tegra20/spl.h
> b/arch/arm/include/asm/arch-tegra20/spl.h
> new file mode 100644
> index 0000000..5e453c5
> --- /dev/null
> +++ b/arch/arm/include/asm/arch-tegra20/spl.h
> @@ -0,0 +1,28 @@
> +/*
> + * (C) Copyright 2012
> + * NVIDIA Corporation <www.nvidia.com>
> + *
> + * 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 _ASM_ARCH_SPL_H_
> +#define _ASM_ARCH_SPL_H_
> +
> +#define BOOT_DEVICE_RAM 1
> +
> +#endif
> diff --git a/include/configs/tegra20-common.h
> b/include/configs/tegra20-common.h
> index 2274ee9..d7d6dc3 100644
> --- a/include/configs/tegra20-common.h
> +++ b/include/configs/tegra20-common.h
> @@ -169,6 +169,7 @@
> #define PHYS_SDRAM_1_SIZE 0x20000000 /* 512M */
>
> #define CONFIG_SYS_TEXT_BASE 0x0010c000
> +#define CONFIG_SYS_UBOOT_START CONFIG_SYS_TEXT_BASE
> #define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM_1
>
> #define CONFIG_SYS_INIT_RAM_ADDR CONFIG_STACKBASE
> @@ -184,6 +185,9 @@
>
> /* Defines for SPL */
> #define CONFIG_SPL
> +#define CONFIG_SPL_FRAMEWORK
> +#define CONFIG_SPL_RAM_DEVICE
> +#define CONFIG_SPL_BOARD_INIT
> #define CONFIG_SPL_NAND_SIMPLE
> #define CONFIG_SPL_TEXT_BASE 0x00108000
> #define CONFIG_SPL_MAX_SIZE (CONFIG_SYS_TEXT_BASE - \
> --
> 1.7.10.4
>
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