[U-Boot] [PATCH 3/3 v3] devkit3250: add Timll DevKit3250 board initial support
Marek Vasut
marek.vasut at gmail.com
Wed Jan 11 21:56:28 CET 2012
> This change adds a basic support for Embest/Timll DevKit3250 board,
> NOR and UART are the only supported peripherals for a moment. The board
> doesn't require low-level init, because the initial SDRAM and GPIO
> configuration is performed during kickstart bootloader execution.
>
> Signed-off-by: Vladimir Zapolskiy <vz at mleia.com>
> ---
> Changes from v2 to v3:
> * updated a relocation address
> * combined a record in maintainers file into the patch
> * use high speed UART2 by default
>
> Changes from v1 to v2:
> * corrected address in GPLv2+ licence header in files
> * removed clean and distclean targets from board makefile
> * do not set machine id explicitly, if CONFIG_MACH_TYPE is defined
> * minor indentation cleanups
>
> MAINTAINERS | 4 +
> board/timll/devkit3250/Makefile | 44 +++++++++++++
> board/timll/devkit3250/devkit3250.c | 71 ++++++++++++++++++++
> boards.cfg | 1 +
> include/configs/devkit3250.h | 121
> +++++++++++++++++++++++++++++++++++ 5 files changed, 241 insertions(+), 0
> deletions(-)
> create mode 100644 board/timll/devkit3250/Makefile
> create mode 100644 board/timll/devkit3250/devkit3250.c
> create mode 100644 include/configs/devkit3250.h
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 4bf12b5..68dedae 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -914,6 +914,10 @@ Sughosh Ganu <urwithsughosh at gmail.com>
>
> hawkboard ARM926EJS (OMAP-L138)
>
> +Vladimir Zapolskiy <vz at mleia.com>
> +
> + devkit3250 lpc32xx
> +
> -------------------------------------------------------------------------
>
> Unknown / orphaned boards:
> diff --git a/board/timll/devkit3250/Makefile
> b/board/timll/devkit3250/Makefile new file mode 100644
> index 0000000..ea7827c
> --- /dev/null
> +++ b/board/timll/devkit3250/Makefile
> @@ -0,0 +1,44 @@
> +#
> +# Copyright (C) 2011 by Vladimir Zapolskiy <vz at mleia.com>
> +# Copyright (C) 2008, Guennadi Liakhovetski <lg at denx.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., 51 Franklin Street, Fifth Floor, Boston,
> +# MA 02110-1301, USA.
> +#
> +
> +include $(TOPDIR)/config.mk
> +
> +LIB = $(obj)lib$(BOARD).o
> +
> +COBJS := devkit3250.o
> +
> +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
> +OBJS := $(addprefix $(obj),$(COBJS))
> +SOBJS := $(addprefix $(obj),$(SOBJS))
> +
> +$(LIB): $(obj).depend $(OBJS) $(SOBJS)
> + $(call cmd_link_o_target, $(OBJS) $(SOBJS))
> +
> +#########################################################################
> +
> +# defines $(obj).depend target
> +include $(SRCTREE)/rules.mk
> +
> +sinclude $(obj).depend
> +
> +#########################################################################
> diff --git a/board/timll/devkit3250/devkit3250.c
> b/board/timll/devkit3250/devkit3250.c new file mode 100644
> index 0000000..461012d
> --- /dev/null
> +++ b/board/timll/devkit3250/devkit3250.c
> @@ -0,0 +1,71 @@
> +/*
> + * Embest/Timll DevKit3250 board support
> + *
> + * Copyright (C) 2011 Vladimir Zapolskiy <vz at mleia.com>
> + *
> + * 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., 51 Franklin Street, Fifth Floor, Boston,
> + * MA 02110-1301, USA.
> + */
> +
> +#include <common.h>
> +#include <asm/arch/sys_proto.h>
> +#include <asm/arch/cpu.h>
> +#include <asm/arch/emc.h>
> +
> +DECLARE_GLOBAL_DATA_PTR;
> +
> +static struct emc_t *emc = (struct emc_t *)EMC_BASE;
> +
> +int board_early_init_f(void)
> +{
> + lpc32xx_uart_init(CONFIG_SYS_LPC32XX_UART);
> +
> + return 0;
> +}
> +
> +int board_init(void)
> +{
> + /*
> + * It might be necessary to flush data cache, if U-boot is loaded
> + * from kickstart bootloader, e.g. from S1L loader
> + */
> + flush_cache(0, 0);
You're flushing no area here ... also, shouldn't this go to CPU init code ?
> +
> + /* adress of boot parameters */
> + gd->bd->bi_boot_params = CONFIG_ENV_ADDR;
> +
> +#ifdef CONFIG_SYS_FLASH_CFI
> + /* Use 16-bit memory interface for NOR Flash */
> + emc->stat[0].config = EMC_STAT_CONFIG_PB | EMC_STAT_CONFIG_16BIT;
> +
> + /* Change the NOR timings to optimum value to get maximum bandwidth */
> + emc->stat[0].waitwen = EMC_STAT_WAITWEN(1);
> + emc->stat[0].waitoen = EMC_STAT_WAITOEN(1);
> + emc->stat[0].waitrd = EMC_STAT_WAITRD(12);
> + emc->stat[0].waitpage = EMC_STAT_WAITPAGE(12);
> + emc->stat[0].waitwr = EMC_STAT_WAITWR(5);
> + emc->stat[0].waitturn = EMC_STAT_WAITTURN(2);
> +#endif
> +
> + return 0;
> +}
> +
> +int dram_init(void)
> +{
> + gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
> + CONFIG_SYS_SDRAM_SIZE);
> +
> + return 0;
> +}
> diff --git a/boards.cfg b/boards.cfg
> index 0b32532..24a98fe 100644
> --- a/boards.cfg
> +++ b/boards.cfg
> @@ -176,6 +176,7 @@ omap730p2_cs0boot arm arm926ejs
> omap730p2 ti omap omap730p2_cs3boot arm
> arm926ejs omap730p2 ti omap omap730p2:CS3_BOOT
> edminiv2 arm arm926ejs -
> LaCie orion5x dkb arm arm926ejs -
> Marvell pantheon +devkit3250 arm
> arm926ejs devkit3250 timll lpc32xx versatileab
> arm arm926ejs versatile armltd
> versatile versatile:ARCH_VERSATILE_AB versatilepb arm
> arm926ejs versatile armltd versatile
> versatile:ARCH_VERSATILE_PB versatileqemu arm
> arm926ejs versatile armltd versatile
> versatile:ARCH_VERSATILE_QEMU,ARCH_VERSATILE_PB diff --git
> a/include/configs/devkit3250.h b/include/configs/devkit3250.h new file
> mode 100644
> index 0000000..360a041
> --- /dev/null
> +++ b/include/configs/devkit3250.h
> @@ -0,0 +1,121 @@
> +/*
> + * Embest/Timll DevKit3250 board configuration file
> + *
> + * Copyright (C) 2011 Vladimir Zapolskiy <vz at mleia.com>
> + *
> + * 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., 51 Franklin Street, Fifth Floor, Boston,
> + * MA 02110-1301, USA.
> + */
> +
> +#ifndef __CONFIG_DEVKIT3250_H__
> +#define __CONFIG_DEVKIT3250_H__
> +
> +/* SoC and board defines */
> +#include <asm/sizes.h>
> +#include <asm/arch/cpu.h>
> +
> +/*
> + * Define DevKit3250 machine type by hand until it lands in mach-types
> + */
> +#define MACH_TYPE_DEVKIT3250 3697
> +#define CONFIG_MACH_TYPE MACH_TYPE_DEVKIT3250
> +
> +#define CONFIG_SYS_ICACHE_OFF
> +#define CONFIG_SYS_DCACHE_OFF
> +#define CONFIG_SKIP_LOWLEVEL_INIT
> +#define CONFIG_BOARD_EARLY_INIT_F
> +
> +/*
> + * Memory configurations
> + */
> +#define CONFIG_NR_DRAM_BANKS 1
> +#define CONFIG_STACKSIZE SZ_32K
> +#define CONFIG_SYS_MALLOC_LEN SZ_1M
> +#define CONFIG_SYS_GBL_DATA_SIZE 128
> +#define CONFIG_SYS_SDRAM_BASE EMC_DYCS0_BASE
> +#define CONFIG_SYS_SDRAM_SIZE SZ_64M
> +#define CONFIG_SYS_MEMTEST_START CONFIG_SYS_SDRAM_BASE
> +#define CONFIG_SYS_MEMTEST_END (CONFIG_SYS_TEXT_BASE - SZ_1M)
> +
> +#define CONFIG_SYS_TEXT_BASE 0x83FA0000
> +#define CONFIG_SYS_LOAD_ADDR (CONFIG_SYS_MEMTEST_START + SZ_32K)
> +
> +#define CONFIG_SYS_INIT_RAM_SIZE SZ_4K
> +#define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_SDRAM_BASE + \
> + CONFIG_SYS_INIT_RAM_SIZE - \
> + GENERATED_GBL_DATA_SIZE)
> +#define CONFIG_SYS_INIT_SP_ADDR CONFIG_SYS_GBL_DATA_OFFSET
> +
> +/*
> + * Serial Driver
> + */
> +#define CONFIG_SYS_LPC32XX_UART 2 /* UART2 */
> +#define CONFIG_BAUDRATE 115200
> +
> +/*
> + * NOR Flash
> + */
> +#define CONFIG_CMD_FLASH
> +#define CONFIG_SYS_MAX_FLASH_BANKS 1
> +#define CONFIG_SYS_MAX_FLASH_SECT 71
> +#define CONFIG_SYS_FLASH_BASE EMC_CS0_BASE
> +#define CONFIG_SYS_FLASH_SIZE SZ_4M
> +#define CONFIG_SYS_FLASH_CFI
> +
> +/*
> + * U-Boot General Configurations
> + */
> +#define CONFIG_SYS_LONGHELP
> +#define CONFIG_SYS_PROMPT "=> "
> +#define CONFIG_SYS_CBSIZE 1024 /* Console I/O buffer size */
> +#define CONFIG_SYS_PBSIZE \
> + (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
> +#define CONFIG_SYS_MAXARGS 16
> +#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
> +
> +#define CONFIG_AUTO_COMPLETE
> +#define CONFIG_CMDLINE_EDITING
> +#define CONFIG_VERSION_VARIABLE
> +#define CONFIG_DISPLAY_CPUINFO
> +#define CONFIG_DOS_PARTITION
> +
> +#define CONFIG_ENV_IS_NOWHERE
> +#define CONFIG_ENV_SIZE SZ_128K
> +#define CONFIG_ENV_ADDR 0x80000100
> +
> +/*
> + * U-Boot Commands
> + */
> +#include <config_cmd_default.h>
> +#define CONFIG_CMD_CACHE
> +
> +/*
> + * Boot Linux
> + */
> +#define CONFIG_CMDLINE_TAG
> +#define CONFIG_SETUP_MEMORY_TAGS
> +#define CONFIG_ZERO_BOOTDELAY_CHECK
> +#define CONFIG_BOOTDELAY 3
> +
> +#define CONFIG_BOOTFILE "uImage"
> +#define CONFIG_BOOTARGS "console=ttyS2,115200n8"
> +#define CONFIG_LOADADDR 0x80008000
> +
> +/*
> + * SoC specific configuration
> + */
> +#include <asm/arch/config.h>
> +
> +#endif /* __CONFIG_DEVKIT3250_H__*/
Otherwise ok
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