Add new directory for da830evm board
Provides initial support for TI OMAP-L137/DA830 SoC devices on a Spectrum Digital EVM board. See http://www.spectrumdigital.com/
Provides: Initial boot and configuration. Support for i2c. UART support (console).
Signed-off-by: Nick Thompson nick.thompson@gefanuc.com --- Applies to u-boot-ti
board/davinci/da830evm/Makefile | 52 ++++++++++++ board/davinci/da830evm/board_init.S | 29 +++++++ board/davinci/da830evm/config.mk | 45 ++++++++++ board/davinci/da830evm/dv_board.c | 156 +++++++++++++++++++++++++++++++++++ 4 files changed, 282 insertions(+), 0 deletions(-)
diff --git a/board/davinci/da830evm/Makefile b/board/davinci/da830evm/Makefile new file mode 100644 index 0000000..fa00138 --- /dev/null +++ b/board/davinci/da830evm/Makefile @@ -0,0 +1,52 @@ +# +# (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 := dv_board.o +SOBJS := board_init.o + +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 *~ .depend + +######################################################################### +# This is for $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/board/davinci/da830evm/board_init.S b/board/davinci/da830evm/board_init.S new file mode 100644 index 0000000..22d8adc --- /dev/null +++ b/board/davinci/da830evm/board_init.S @@ -0,0 +1,29 @@ +/* + * Copyright (C) 2007 Sergey Kubushyn ksi@koi8.net + * + * Board-specific low level initialization code. Called at the very end + * of cpu/arm926ejs/davinci/lowlevel_init.S. Just returns if there is no + * initialization required. + * + * 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 <config.h> + +.globl dv_board_init +dv_board_init: + + mov pc, lr diff --git a/board/davinci/da830evm/config.mk b/board/davinci/da830evm/config.mk new file mode 100644 index 0000000..f05e36a --- /dev/null +++ b/board/davinci/da830evm/config.mk @@ -0,0 +1,45 @@ +# +# (C) Copyright 2008 Sekhar Nori, Texas Instruments, Inc. nsekhar@ti.com +# +# Copyright (C) 2007 Sergey Kubushyn ksi@koi8.net +# +# (C) Copyright 2003 Swaminathan, Texas Instruments, swami.iyer@ti.com +# +# (C) Copyright 2002 +# Gary Jennejohn, DENX Software Engineering, gj@denx.de +# David Mueller, ELSOFT AG, d.mueller@elsoft.ch +# +# 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 +# + +# Texas Instruments DA8xx EVM board (ARM925EJS) cpu +# see http://www.ti.com/ for more information on Texas Instruments +# +# DA8xx EVM has 1 bank of 64 MB SDRAM (2 16Meg x16 chips). +# Physical Address: +# C000'0000 to C400'0000 +# +# Linux-Kernel is expected to be at C000'8000, entry C000'8000 +# (mem base + reserved) +# +# we load ourself to C108 '0000 + + +#Provide at least 16MB spacing between us and the Linux Kernel image +TEXT_BASE = 0xC1080000 diff --git a/board/davinci/da830evm/dv_board.c b/board/davinci/da830evm/dv_board.c new file mode 100644 index 0000000..a5e507c --- /dev/null +++ b/board/davinci/da830evm/dv_board.c @@ -0,0 +1,156 @@ +/* + * Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. nick.thompson@gefanuc.com + * + * Use the board_eth_init hook to initialise the ethernet in the + * correct order. (Has to wait until after call to miiphy_init().) + * + * Copyright (C) 2008 Sekhar Nori, Texas Instruments, Inc. nsekhar@ti.com + * + * Modified for DA8xx EVM. + * + * Copyright (C) 2007 Sergey Kubushyn ksi@koi8.net + * + * Parts are shamelessly stolen from various TI sources, original copyright + * follows: + * ----------------------------------------------------------------- + * + * Copyright (C) 2004 Texas Instruments. + * + * ---------------------------------------------------------------------------- + * 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 <i2c.h> +#include <net.h> +#include <netdev.h> +#include <asm/arch/hardware.h> +#include <asm/arch/emac_defs.h> +#include <asm/io.h> +#include "../common/misc.h" + +DECLARE_GLOBAL_DATA_PTR; + +/* Works on Always On power domain only (no PD argument) */ +void lpsc_on(unsigned int id) +{ + unsigned int mdstat, mdctl, ptstat, ptcmd; + + if (id >= 64) + return; + + if (id < 32) { + mdstat = PSC0_MDSTAT + (id * 4); + mdctl = PSC0_MDCTL + (id * 4); + ptstat = PSC0_PTSTAT; + ptcmd = PSC0_PTCMD; + } else { + id -= 32; + mdstat = PSC1_MDSTAT + (id * 4); + mdctl = PSC1_MDCTL + (id * 4); + ptstat = PSC1_PTSTAT; + ptcmd = PSC1_PTCMD; + } + + while (readl(ptstat) & 0x01) + ; /* wait */ + + if ((readl(mdstat) & 0x1f) == 0x03) + return; /* Already on and enabled */ + + writel(readl(mdctl) | 0x03, mdctl); + + writel(0x01, ptcmd); + + while (readl(ptstat) & 0x01) + ; /* wait */ + while ((readl(mdstat) & 0x1f) != 0x03) + ; /* wait */ +} + +/* Read, Modify, Write macro for pin multiplxer modifications */ +#define PINMUX(n, val, mask) writel((val & mask) | (readl(n) & (~mask)), n) + +int board_init(void) +{ + +#ifndef CONFIG_USE_IRQ + /* + * Mask all IRQs by clearing the global enable and setting + * the enable clear for all the 90 interrupts. This code is + * also included in low level init. Including it here in case + * low level init is skipped. Not removing it from low level + * init in case some of the low level init code generates + * interrupts... Not expected... but you never know... + */ + + writel(0, INTC_GLB_EN); + + writel(0, INTC_HINT_EN + 0x0); + writel(0, INTC_HINT_EN + 0x4); + writel(0, INTC_HINT_EN + 0x8); + + writel(0xffffffff, INTC_EN_CLR0 + 0x0); + writel(0xffffffff, INTC_EN_CLR0 + 0x4); + writel(0xffffffff, INTC_EN_CLR0 + 0x8); +#endif + + /* arch number of the board */ + gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DA830_EVM; + + /* address of boot parameters */ + gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR; + + /* + * Power on required peripherals + * ARM does not have access by default to PSC0 and PSC1 + * assuming here that the DSP bootloader has set the IOPU + * such that PSC access is available to ARM + */ + lpsc_on(DAVINCI_LPSC_AEMIF); /* NAND, NOR */ + lpsc_on(DAVINCI_LPSC_SPI0); /* Serial Flash */ + lpsc_on(DAVINCI_LPSC_EMAC); /* image download */ + lpsc_on(DAVINCI_LPSC_UART2); /* console */ + lpsc_on(DAVINCI_LPSC_GPIO); + + /* Pin Muxing support */ + + /* setup the SUSPSRC for ARM to control emulation suspend */ + writel(readl(SUSPSRC) & ~(SUSPSRC_EMAC | SUSPSRC_I2C | SUSPSRC_SPI0 | + SUSPSRC_TIMER0 | SUSPSRC_UART2), SUSPSRC); + +#ifdef CONFIG_USE_PINMUX + +#ifdef CONFIG_SPI_FLASH + /* SPI0 pin enable*/ + PINMUX(PINMUX7, 0x11111000, 0xFFFFF000) +#endif + + /* UART pin enable */ + PINMUX(PINMUX8, 0x20000000, 0xF0000000); + PINMUX(PINMUX9, 0x00000002, 0x0000000F); + + /* I2C pin enable */ + PINMUX(PINMUX9, 0x00022000, 0x000FF000); + +#endif /* CONFIG_USE_PIN_MUX */ + + /* enable the console UART */ + writel(PWREMU_MGMT_FREE | PWREMU_MGMT_URRST | PWREMU_MGMT_UTRST, + DAVINCI_UART2_BASE + PWREMU_MGMT_BASE); + + return(0); +}