Commit 28b00324 authored by David Brownell's avatar David Brownell Committed by Wolfgang Denk

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: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
parent 136cf92d
......@@ -528,6 +528,7 @@ LIST_ARM9=" \
davinci_schmoogie \
davinci_sffsdr \
davinci_sonata \
davinci_dm355evm \
"
#########################################################################
......
......@@ -2801,6 +2801,9 @@ davinci_sffsdr_config : unconfig
davinci_sonata_config : unconfig
@$(MKCONFIG) $(@:_config=) arm arm926ejs sonata davinci davinci
davinci_dm355evm_config : unconfig
@$(MKCONFIG) $(@:_config=) arm arm926ejs dm355evm davinci davinci
lpd7a400_config \
lpd7a404_config: unconfig
@$(MKCONFIG) $(@:_config=) arm lh7a40x lpd7a40x
......
#
# (C) Copyright 2000, 2001, 2002
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
#
# 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 $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).a
COBJS := $(BOARD).o
SOBJS :=
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
SOBJS := $(addprefix $(obj),$(SOBJS))
$(LIB): $(obj).depend $(OBJS) $(SOBJS)
$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
clean:
rm -f $(SOBJS) $(OBJS)
distclean: clean
rm -f $(LIB) core *.bak $(obj).depend
#########################################################################
# This is for $(obj).depend target
include $(SRCTREE)/rules.mk
sinclude $(obj).depend
#########################################################################
#
# Spectrum Digital DM355 EVM board
# dm355evm board has 1 bank of 128 MB DDR RAM
# Physical Address: 8000'0000 to 8800'0000
#
# Linux Kernel is expected to be at 8000'8000, entry 8000'8000
# (mem base + reserved)
#
#Provide at least 16MB spacing between us and the Linux Kernel image
TEXT_BASE = 0x81080000
/*
* Copyright (C) 2009 David Brownell
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <common.h>
#include <nand.h>
#include <asm/io.h>
#include <asm/arch/hardware.h>
#include <asm/arch/emif_defs.h>
#include <asm/arch/nand_defs.h>
#include "../common/misc.h"
DECLARE_GLOBAL_DATA_PTR;
/*
* With the DM355 EVM, u-boot is *always* a third stage loader,
* unless a JTAG debugger handles the first two stages:
*
* - 1st stage is ROM Boot Loader (RBL), which searches for a
* second stage loader in one of three places based on SW7:
* NAND (with MMC/SD fallback), MMC/SD, or UART.
*
* - 2nd stage is User Boot Loader (UBL), using at most 30KB
* of on-chip SRAM, responsible for lowlevel init, and for
* loading the third stage loader into DRAM.
*
* - 3rd stage, that's us!
*/
int board_init(void)
{
gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DM355_EVM;
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
/* We expect the UBL to have handled "lowlevel init", which
* involves setting up at least:
* - clocks
* + PLL1 (for ARM and peripherals) and PLL2 (for DDR)
* + clock divisors for those PLLs
* + LPSC_DDR module enabled
* + LPSC_TIMER0 module (still) enabled
* - EMIF
* + DDR init and timings
* + AEMIF timings (for NAND and DM9000)
* - pinmux
*
* Some of that is repeated here, mostly as a precaution.
*/
/* AEMIF: Some "address" lines are available as GPIOs. A3..A13
* could be too if we used A12 as a GPIO during NAND chipselect
* (and Linux did too), letting us control the LED on A7/GPIO61.
*/
REG(PINMUX2) = 0x0c08;
/* UART0 may still be in SyncReset if we didn't boot from UART */
davinci_enable_uart0();
/* EDMA may be in SyncReset too; turn it on, Linux won't (yet) */
lpsc_on(DAVINCI_LPSC_TPCC);
lpsc_on(DAVINCI_LPSC_TPTC0);
lpsc_on(DAVINCI_LPSC_TPTC1);
return 0;
}
#ifdef CONFIG_NAND_DAVINCI
static void nand_dm355evm_select_chip(struct mtd_info *mtd, int chip)
{
struct nand_chip *this = mtd->priv;
u32 wbase = (u32) this->IO_ADDR_W;
u32 rbase = (u32) this->IO_ADDR_R;
if (chip == 1) {
__set_bit(14, &wbase);
__set_bit(14, &rbase);
} else {
__clear_bit(14, &wbase);
__clear_bit(14, &rbase);
}
this->IO_ADDR_W = (void *)wbase;
this->IO_ADDR_R = (void *)rbase;
}
int board_nand_init(struct nand_chip *nand)
{
davinci_nand_init(nand);
nand->select_chip = nand_dm355evm_select_chip;
return 0;
}
#endif
/*
* Copyright (C) 2009 David Brownell
*
* 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 __CONFIG_H
#define __CONFIG_H
#include <asm/sizes.h>
/* Spectrum Digital TMS320DM355 EVM board */
#define DAVINCI_DM355EVM
#define CONFIG_SKIP_LOWLEVEL_INIT /* U-Boot is a 3rd stage loader */
#define CONFIG_SKIP_RELOCATE_UBOOT
#define CONFIG_SYS_NO_FLASH /* that is, no *NOR* flash */
#define CONFIG_SYS_CONSOLE_INFO_QUIET
#define CONFIG_DISPLAY_CPUINFO
/* SoC Configuration */
#define CONFIG_ARM926EJS /* arm926ejs CPU */
#define CONFIG_SYS_TIMERBASE 0x01c21400 /* use timer 0 */
#define CONFIG_SYS_HZ_CLOCK 24000000 /* timer0 freq */
#define CONFIG_SYS_HZ 1000
#define CONFIG_SOC_DM355
/* Memory Info */
#define CONFIG_NR_DRAM_BANKS 1
#define PHYS_SDRAM_1 0x80000000
#define PHYS_SDRAM_1_SIZE SZ_128M
/* Serial Driver info: UART0 for console */
#define CONFIG_SYS_NS16550
#define CONFIG_SYS_NS16550_SERIAL
#define CONFIG_SYS_NS16550_REG_SIZE -4
#define CONFIG_SYS_NS16550_COM1 0x01c20000
#define CONFIG_SYS_NS16550_CLK CONFIG_SYS_HZ_CLOCK
#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
#define CONFIG_CONS_INDEX 1
#define CONFIG_BAUDRATE 115200
/* Ethernet: external DM9000 */
#define CONFIG_DRIVER_DM9000 1
#define CONFIG_DM9000_BASE 0x04014000
#define DM9000_IO CONFIG_DM9000_BASE
#define DM9000_DATA (CONFIG_DM9000_BASE + 2)
/* I2C */
#define CONFIG_HARD_I2C
#define CONFIG_DRIVER_DAVINCI_I2C
#define CONFIG_SYS_I2C_SPEED 400000
#define CONFIG_SYS_I2C_SLAVE 0x10 /* SMBus host address */
/* NAND: socketed, two chipselects, normally 2 GBytes */
/* NYET -- #define CONFIG_NAND_DAVINCI */
#define CONFIG_SYS_NAND_HW_ECC
#define CONFIG_SYS_NAND_USE_FLASH_BBT
#define CONFIG_SYS_NAND_LARGEPAGE
#define CONFIG_SYS_NAND_BASE_LIST { 0x02000000, }
/* socket has two chipselects, nCE0 gated by address BIT(14) */
#define CONFIG_SYS_MAX_NAND_DEVICE 1
#define CONFIG_SYS_NAND_MAX_CHIPS 2
/* USB: OTG connector */
/* NYET -- #define CONFIG_USB_DAVINCI */
/* U-Boot command configuration */
#include <config_cmd_default.h>
#undef CONFIG_CMD_BDI
#undef CONFIG_CMD_FLASH
#undef CONFIG_CMD_FPGA
#undef CONFIG_CMD_SETGETDCR
#define CONFIG_CMD_ASKENV
#define CONFIG_CMD_DHCP
#define CONFIG_CMD_I2C
#define CONFIG_CMD_PING
#define CONFIG_CMD_SAVES
#ifdef CONFIG_NAND_DAVINCI
#define CONFIG_CMD_MTDPARTS
#define CONFIG_MTD_PARTITIONS
#define CONFIG_CMD_NAND
#define CONFIG_CMD_UBI
#define CONFIG_RBTREE
#endif
/* TEMPORARY -- no safe place to save env, yet */
#define CONFIG_ENV_IS_NOWHERE
#undef CONFIG_CMD_SAVEENV
#ifdef CONFIG_USB_DAVINCI
#define CONFIG_MUSB_HCD
#define CONFIG_CMD_USB
#define CONFIG_USB_STORAGE
#else
#undef CONFIG_MUSB_HCD
#undef CONFIG_CMD_USB
#undef CONFIG_USB_STORAGE
#endif
#define CONFIG_CRC32_VERIFY
#define CONFIG_MX_CYCLIC
/* U-Boot general configuration */
#undef CONFIG_USE_IRQ /* No IRQ/FIQ in U-Boot */
#define CONFIG_BOOTFILE "uImage" /* Boot file name */
#define CONFIG_SYS_PROMPT "DM355 EVM # " /* Monitor Command Prompt */
#define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
#define CONFIG_SYS_PBSIZE /* Print buffer size */ \
(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
#define CONFIG_SYS_MAXARGS 16 /* max number of command args */
#define CONFIG_SYS_HUSH_PARSER
#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
#define CONFIG_SYS_LONGHELP
#define CONFIG_ENV_SIZE SZ_16K
/* NYET -- #define CONFIG_BOOTDELAY 5 */
#define CONFIG_BOOTCOMMAND \
"dhcp;bootm"
#define CONFIG_BOOTARGS \
"console=ttyS0,115200n8 " \
"root=/dev/mmcblk0p1 rootwait rootfstype=ext3 ro"
#define CONFIG_CMDLINE_EDITING
#define CONFIG_VERSION_VARIABLE
#define CONFIG_TIMESTAMP
#define CONFIG_NET_RETRY_COUNT 10
/* U-Boot memory configuration */
#define CONFIG_STACKSIZE SZ_256K /* regular stack */
#define CONFIG_SYS_MALLOC_LEN SZ_512K /* malloc() arena */
#define CONFIG_SYS_GBL_DATA_SIZE 128 /* for initial data */
#define CONFIG_SYS_MEMTEST_START 0x87000000 /* physical address */
#define CONFIG_SYS_MEMTEST_END 0x88000000 /* test 16MB RAM */
/* Linux interfacing */
#define CONFIG_CMDLINE_TAG
#define CONFIG_SETUP_MEMORY_TAGS
#define CONFIG_SYS_BARGSIZE 1024 /* bootarg Size */
#define CONFIG_SYS_LOAD_ADDR 0x80700000 /* kernel address */
/* NAND configuration ... socketed with two chipselects. It normally comes
* with a 2GByte SLC part with 2KB pages (and 128KB erase blocks); other
* 2GByte parts may have 4KB pages, 256KB erase blocks, and use MLC. (MLC
* pretty much demands the 4-bit ECC support.) You can of course swap in
* other parts, including small page ones.
*
* This presents a single read-only partition for all bootloader stuff.
* UBL (1+ block), U-Boot (256KB+), U-Boot environment (one block), and
* some extra space to help cope with bad blocks in that data. Linux
* shouldn't care about its detailed layout, and will probably want to use
* UBI/UBFS for the rest (except maybe on smallpage chips). It's easy to
* override this default partitioning using MTDPARTS and cmdlinepart.
*/
#define MTDIDS_DEFAULT "nand0=davinci_nand.0"
#ifdef CONFIG_SYS_NAND_LARGEPAGE
/* Use same layout for 128K/256K blocks; allow some bad blocks */
#define PART_BOOT "2m(bootloader)ro,"
#else
/* Assume 16K erase blocks; allow a few bad ones. */
#define PART_BOOT "512k(bootloader)ro,"
#endif
#define PART_KERNEL "4m(kernel)," /* kernel + initramfs */
#define PART_REST "-(filesystem)"
#define MTDPARTS_DEFAULT \
"mtdparts=davinci_nand.0:" PART_BOOT PART_KERNEL PART_REST
#endif /* __CONFIG_H */
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