dm355 evm support
Initial U-Boot support for the DaVinci DM355 EVM. This is a board from Spectrum Digital. Board docs include schematic and firmware for its microcontroller: http://c6000.spectrumdigital.com/evmdm355/revd/ Most of the DM355 chip is fully documented by TI, the most notable exception being the MPEG/JPEG coprocessor (programmable using codecs available at no cost from TI), which is omitted from its DM335 sibling: http://focus.ti.com/docs/prod/folders/print/tms320dm355.html This version can boot from the on-board DM9000 Ethernet chip, after being loaded (from NAND, MMC/SD, or UART). In the near future, NAND and USB support could be added ... NAND support is being held back until the support for the 4-bit ECC hardware is ready. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
This commit is contained in:
David Brownell
Wolfgang Denk
parent
136cf92dc9
commit
28b00324be
1
MAKEALL
1
MAKEALL
@ -528,6 +528,7 @@ LIST_ARM9=" \
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davinci_schmoogie \
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davinci_sffsdr \
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davinci_sonata \
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davinci_dm355evm \
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"
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#########################################################################
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3
Makefile
3
Makefile
@ -2801,6 +2801,9 @@ davinci_sffsdr_config : unconfig
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davinci_sonata_config : unconfig
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@$(MKCONFIG) $(@:_config=) arm arm926ejs sonata davinci davinci
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davinci_dm355evm_config : unconfig
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@$(MKCONFIG) $(@:_config=) arm arm926ejs dm355evm davinci davinci
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lpd7a400_config \
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lpd7a404_config: unconfig
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@$(MKCONFIG) $(@:_config=) arm lh7a40x lpd7a40x
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52
board/davinci/dm355evm/Makefile
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52
board/davinci/dm355evm/Makefile
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@ -0,0 +1,52 @@
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#
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# (C) Copyright 2000, 2001, 2002
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
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#
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# See file CREDITS for list of people who contributed to this
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# project.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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# MA 02111-1307 USA
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#
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include $(TOPDIR)/config.mk
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LIB = $(obj)lib$(BOARD).a
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COBJS := $(BOARD).o
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SOBJS :=
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SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
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OBJS := $(addprefix $(obj),$(COBJS))
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SOBJS := $(addprefix $(obj),$(SOBJS))
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$(LIB): $(obj).depend $(OBJS) $(SOBJS)
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$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
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clean:
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rm -f $(SOBJS) $(OBJS)
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distclean: clean
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rm -f $(LIB) core *.bak $(obj).depend
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#########################################################################
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# This is for $(obj).depend target
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include $(SRCTREE)/rules.mk
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sinclude $(obj).depend
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#########################################################################
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11
board/davinci/dm355evm/config.mk
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11
board/davinci/dm355evm/config.mk
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@ -0,0 +1,11 @@
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#
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# Spectrum Digital DM355 EVM board
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# dm355evm board has 1 bank of 128 MB DDR RAM
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# Physical Address: 8000'0000 to 8800'0000
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#
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# Linux Kernel is expected to be at 8000'8000, entry 8000'8000
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# (mem base + reserved)
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#
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#Provide at least 16MB spacing between us and the Linux Kernel image
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TEXT_BASE = 0x81080000
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108
board/davinci/dm355evm/dm355evm.c
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108
board/davinci/dm355evm/dm355evm.c
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@ -0,0 +1,108 @@
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/*
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* Copyright (C) 2009 David Brownell
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <common.h>
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#include <nand.h>
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#include <asm/io.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/emif_defs.h>
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#include <asm/arch/nand_defs.h>
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#include "../common/misc.h"
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DECLARE_GLOBAL_DATA_PTR;
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/*
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* With the DM355 EVM, u-boot is *always* a third stage loader,
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* unless a JTAG debugger handles the first two stages:
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*
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* - 1st stage is ROM Boot Loader (RBL), which searches for a
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* second stage loader in one of three places based on SW7:
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* NAND (with MMC/SD fallback), MMC/SD, or UART.
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*
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* - 2nd stage is User Boot Loader (UBL), using at most 30KB
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* of on-chip SRAM, responsible for lowlevel init, and for
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* loading the third stage loader into DRAM.
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*
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* - 3rd stage, that's us!
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*/
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int board_init(void)
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{
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gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DM355_EVM;
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gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
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/* We expect the UBL to have handled "lowlevel init", which
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* involves setting up at least:
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* - clocks
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* + PLL1 (for ARM and peripherals) and PLL2 (for DDR)
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* + clock divisors for those PLLs
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* + LPSC_DDR module enabled
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* + LPSC_TIMER0 module (still) enabled
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* - EMIF
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* + DDR init and timings
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* + AEMIF timings (for NAND and DM9000)
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* - pinmux
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*
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* Some of that is repeated here, mostly as a precaution.
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*/
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/* AEMIF: Some "address" lines are available as GPIOs. A3..A13
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* could be too if we used A12 as a GPIO during NAND chipselect
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* (and Linux did too), letting us control the LED on A7/GPIO61.
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*/
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REG(PINMUX2) = 0x0c08;
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/* UART0 may still be in SyncReset if we didn't boot from UART */
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davinci_enable_uart0();
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/* EDMA may be in SyncReset too; turn it on, Linux won't (yet) */
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lpsc_on(DAVINCI_LPSC_TPCC);
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lpsc_on(DAVINCI_LPSC_TPTC0);
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lpsc_on(DAVINCI_LPSC_TPTC1);
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return 0;
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}
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#ifdef CONFIG_NAND_DAVINCI
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static void nand_dm355evm_select_chip(struct mtd_info *mtd, int chip)
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{
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struct nand_chip *this = mtd->priv;
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u32 wbase = (u32) this->IO_ADDR_W;
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u32 rbase = (u32) this->IO_ADDR_R;
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if (chip == 1) {
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__set_bit(14, &wbase);
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__set_bit(14, &rbase);
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} else {
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__clear_bit(14, &wbase);
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__clear_bit(14, &rbase);
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}
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this->IO_ADDR_W = (void *)wbase;
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this->IO_ADDR_R = (void *)rbase;
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}
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int board_nand_init(struct nand_chip *nand)
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{
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davinci_nand_init(nand);
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nand->select_chip = nand_dm355evm_select_chip;
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return 0;
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}
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#endif
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190
include/configs/davinci_dm355evm.h
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190
include/configs/davinci_dm355evm.h
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@ -0,0 +1,190 @@
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/*
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* Copyright (C) 2009 David Brownell
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#ifndef __CONFIG_H
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#define __CONFIG_H
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#include <asm/sizes.h>
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/* Spectrum Digital TMS320DM355 EVM board */
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#define DAVINCI_DM355EVM
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#define CONFIG_SKIP_LOWLEVEL_INIT /* U-Boot is a 3rd stage loader */
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#define CONFIG_SKIP_RELOCATE_UBOOT
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#define CONFIG_SYS_NO_FLASH /* that is, no *NOR* flash */
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#define CONFIG_SYS_CONSOLE_INFO_QUIET
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#define CONFIG_DISPLAY_CPUINFO
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/* SoC Configuration */
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#define CONFIG_ARM926EJS /* arm926ejs CPU */
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#define CONFIG_SYS_TIMERBASE 0x01c21400 /* use timer 0 */
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#define CONFIG_SYS_HZ_CLOCK 24000000 /* timer0 freq */
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#define CONFIG_SYS_HZ 1000
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#define CONFIG_SOC_DM355
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/* Memory Info */
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#define CONFIG_NR_DRAM_BANKS 1
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#define PHYS_SDRAM_1 0x80000000
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#define PHYS_SDRAM_1_SIZE SZ_128M
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/* Serial Driver info: UART0 for console */
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#define CONFIG_SYS_NS16550
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#define CONFIG_SYS_NS16550_SERIAL
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#define CONFIG_SYS_NS16550_REG_SIZE -4
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#define CONFIG_SYS_NS16550_COM1 0x01c20000
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#define CONFIG_SYS_NS16550_CLK CONFIG_SYS_HZ_CLOCK
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#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
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#define CONFIG_CONS_INDEX 1
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#define CONFIG_BAUDRATE 115200
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/* Ethernet: external DM9000 */
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#define CONFIG_DRIVER_DM9000 1
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#define CONFIG_DM9000_BASE 0x04014000
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#define DM9000_IO CONFIG_DM9000_BASE
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#define DM9000_DATA (CONFIG_DM9000_BASE + 2)
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/* I2C */
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#define CONFIG_HARD_I2C
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#define CONFIG_DRIVER_DAVINCI_I2C
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#define CONFIG_SYS_I2C_SPEED 400000
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#define CONFIG_SYS_I2C_SLAVE 0x10 /* SMBus host address */
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/* NAND: socketed, two chipselects, normally 2 GBytes */
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/* NYET -- #define CONFIG_NAND_DAVINCI */
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#define CONFIG_SYS_NAND_HW_ECC
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#define CONFIG_SYS_NAND_USE_FLASH_BBT
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#define CONFIG_SYS_NAND_LARGEPAGE
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#define CONFIG_SYS_NAND_BASE_LIST { 0x02000000, }
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/* socket has two chipselects, nCE0 gated by address BIT(14) */
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#define CONFIG_SYS_MAX_NAND_DEVICE 1
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#define CONFIG_SYS_NAND_MAX_CHIPS 2
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/* USB: OTG connector */
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/* NYET -- #define CONFIG_USB_DAVINCI */
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/* U-Boot command configuration */
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#include <config_cmd_default.h>
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#undef CONFIG_CMD_BDI
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#undef CONFIG_CMD_FLASH
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#undef CONFIG_CMD_FPGA
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#undef CONFIG_CMD_SETGETDCR
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#define CONFIG_CMD_ASKENV
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#define CONFIG_CMD_DHCP
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#define CONFIG_CMD_I2C
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#define CONFIG_CMD_PING
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#define CONFIG_CMD_SAVES
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#ifdef CONFIG_NAND_DAVINCI
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#define CONFIG_CMD_MTDPARTS
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#define CONFIG_MTD_PARTITIONS
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#define CONFIG_CMD_NAND
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#define CONFIG_CMD_UBI
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#define CONFIG_RBTREE
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#endif
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/* TEMPORARY -- no safe place to save env, yet */
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#define CONFIG_ENV_IS_NOWHERE
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#undef CONFIG_CMD_SAVEENV
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#ifdef CONFIG_USB_DAVINCI
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#define CONFIG_MUSB_HCD
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#define CONFIG_CMD_USB
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#define CONFIG_USB_STORAGE
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#else
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#undef CONFIG_MUSB_HCD
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#undef CONFIG_CMD_USB
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#undef CONFIG_USB_STORAGE
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#endif
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#define CONFIG_CRC32_VERIFY
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#define CONFIG_MX_CYCLIC
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/* U-Boot general configuration */
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#undef CONFIG_USE_IRQ /* No IRQ/FIQ in U-Boot */
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#define CONFIG_BOOTFILE "uImage" /* Boot file name */
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#define CONFIG_SYS_PROMPT "DM355 EVM # " /* Monitor Command Prompt */
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#define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
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#define CONFIG_SYS_PBSIZE /* Print buffer size */ \
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(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
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#define CONFIG_SYS_MAXARGS 16 /* max number of command args */
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#define CONFIG_SYS_HUSH_PARSER
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#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
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#define CONFIG_SYS_LONGHELP
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#define CONFIG_ENV_SIZE SZ_16K
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/* NYET -- #define CONFIG_BOOTDELAY 5 */
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#define CONFIG_BOOTCOMMAND \
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"dhcp;bootm"
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#define CONFIG_BOOTARGS \
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"console=ttyS0,115200n8 " \
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"root=/dev/mmcblk0p1 rootwait rootfstype=ext3 ro"
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#define CONFIG_CMDLINE_EDITING
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#define CONFIG_VERSION_VARIABLE
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#define CONFIG_TIMESTAMP
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#define CONFIG_NET_RETRY_COUNT 10
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/* U-Boot memory configuration */
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#define CONFIG_STACKSIZE SZ_256K /* regular stack */
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#define CONFIG_SYS_MALLOC_LEN SZ_512K /* malloc() arena */
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#define CONFIG_SYS_GBL_DATA_SIZE 128 /* for initial data */
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#define CONFIG_SYS_MEMTEST_START 0x87000000 /* physical address */
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#define CONFIG_SYS_MEMTEST_END 0x88000000 /* test 16MB RAM */
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/* Linux interfacing */
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#define CONFIG_CMDLINE_TAG
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#define CONFIG_SETUP_MEMORY_TAGS
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#define CONFIG_SYS_BARGSIZE 1024 /* bootarg Size */
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#define CONFIG_SYS_LOAD_ADDR 0x80700000 /* kernel address */
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/* NAND configuration ... socketed with two chipselects. It normally comes
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* with a 2GByte SLC part with 2KB pages (and 128KB erase blocks); other
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* 2GByte parts may have 4KB pages, 256KB erase blocks, and use MLC. (MLC
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* pretty much demands the 4-bit ECC support.) You can of course swap in
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* other parts, including small page ones.
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*
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* This presents a single read-only partition for all bootloader stuff.
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* UBL (1+ block), U-Boot (256KB+), U-Boot environment (one block), and
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* some extra space to help cope with bad blocks in that data. Linux
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* shouldn't care about its detailed layout, and will probably want to use
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* UBI/UBFS for the rest (except maybe on smallpage chips). It's easy to
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* override this default partitioning using MTDPARTS and cmdlinepart.
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*/
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#define MTDIDS_DEFAULT "nand0=davinci_nand.0"
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#ifdef CONFIG_SYS_NAND_LARGEPAGE
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/* Use same layout for 128K/256K blocks; allow some bad blocks */
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#define PART_BOOT "2m(bootloader)ro,"
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#else
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/* Assume 16K erase blocks; allow a few bad ones. */
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#define PART_BOOT "512k(bootloader)ro,"
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#endif
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#define PART_KERNEL "4m(kernel)," /* kernel + initramfs */
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#define PART_REST "-(filesystem)"
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#define MTDPARTS_DEFAULT \
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"mtdparts=davinci_nand.0:" PART_BOOT PART_KERNEL PART_REST
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#endif /* __CONFIG_H */
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