Nick Thompson wrote:
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
This and the trivial lowlevel_init.S file makes me think you just use CONFIG_SKIP_LOWLEVEL_INIT and reduce your file count by 2
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
Change this file to be da830evm.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;
You are passing in #defined numbers but are checking against hardcoded values Please change this to also use #defines
- 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)
Can this be moved to common/misc.h ? Other davinci's that do mux-ing could benefit from a common macro.
+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...*/
This comment does not go with the noop-ish lowlevel_init code. Please change this.
- 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 */
Please de-magic these numbers if possible.
- /* enable the console UART */
- writel(PWREMU_MGMT_FREE | PWREMU_MGMT_URRST | PWREMU_MGMT_UTRST,
DAVINCI_UART2_BASE + PWREMU_MGMT_BASE);
Will this work if the UART mux is not configured ?
Tom
- return(0);
+} _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot