TI DA8xx: Add new directory for da830evm board
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>
diff --git a/board/davinci/da830evm/Makefile b/board/davinci/da830evm/Makefile
new file mode 100644
index 0000000..02636fa
--- /dev/null
+++ b/board/davinci/da830evm/Makefile
@@ -0,0 +1,51 @@
+#
+# (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 := da830evm.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/config.mk b/board/davinci/da830evm/config.mk
new file mode 100644
index 0000000..6da29a9
--- /dev/null
+++ b/board/davinci/da830evm/config.mk
@@ -0,0 +1,43 @@
+#
+# (C) Copyright 2008, Texas Instruments, Inc. http://www.ti.com/
+#
+# Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
+#
+# (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/da830evm.c b/board/davinci/da830evm/da830evm.c
new file mode 100644
index 0000000..bb8cc3c
--- /dev/null
+++ b/board/davinci/da830evm/da830evm.c
@@ -0,0 +1,127 @@
+/*
+ * Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com>
+ *
+ * Base on code from TI. Original Notices follow:
+ *
+ * (C) Copyright 2008, Texas Instruments, Inc. http://www.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 <asm/arch/hardware.h>
+#include <asm/io.h>
+#include "../common/misc.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define pinmux &davinci_syscfg_regs->pinmux
+
+#ifdef CONFIG_SPI_FLASH
+/* SPI0 pin muxer settings */
+const struct pinmux_config spi0_pins[] = {
+ { pinmux[7], 1, 3 },
+ { pinmux[7], 1, 4 },
+ { pinmux[7], 1, 5 },
+ { pinmux[7], 1, 6 },
+ { pinmux[7], 1, 7 }
+};
+#endif
+
+/* UART pin muxer settings */
+const struct pinmux_config uart_pins[] = {
+ { pinmux[8], 2, 7 },
+ { pinmux[9], 2, 0 }
+};
+
+/* I2C pin muxer settings */
+const struct pinmux_config i2c_pins[] = {
+ { pinmux[9], 2, 3 },
+ { pinmux[9], 2, 4 }
+};
+
+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.
+ */
+
+ writel(0, &davinci_aintc_regs->ger);
+
+ writel(0, &davinci_aintc_regs->hier);
+
+ writel(0xffffffff, &davinci_aintc_regs->ecr1);
+ writel(0xffffffff, &davinci_aintc_regs->ecr2);
+ writel(0xffffffff, &davinci_aintc_regs->ecr3);
+#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);
+
+ /* setup the SUSPSRC for ARM to control emulation suspend */
+ writel(readl(&davinci_syscfg_regs->suspsrc) &
+ ~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C |
+ DAVINCI_SYSCFG_SUSPSRC_SPI0 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
+ DAVINCI_SYSCFG_SUSPSRC_UART2),
+ &davinci_syscfg_regs->suspsrc);
+
+#ifdef CONFIG_SPI_FLASH
+ if (davinci_configure_pin_mux(spi0_pins, ARRAY_SIZE(spi0_pins)) != 0)
+ return 1;
+#endif
+
+ if (davinci_configure_pin_mux(uart_pins, ARRAY_SIZE(uart_pins)) != 0)
+ return 1;
+
+ if (davinci_configure_pin_mux(i2c_pins, ARRAY_SIZE(i2c_pins)) != 0)
+ return 1;
+
+ /* enable the console UART */
+ writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST |
+ DAVINCI_UART_PWREMU_MGMT_UTRST),
+ &davinci_uart2_ctrl_regs->pwremu_mgmt);
+
+ return(0);
+}