[U-Boot] [PATCH 02/31] iMX28: Add basic support for DENX M28EVK board

Marek Vasut
2011-09-08T20:42:30Z

This contains support for booting the board and output via DUART.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Detlev Zundel <dzu@denx.de>
---
MAINTAINERS | 1 +
board/denx/m28evk/Makefile | 49 ++++++++++++++++++++
board/denx/m28evk/m28evk.c | 69 ++++++++++++++++++++++++++++
boards.cfg | 1 +
include/configs/m28evk.h | 108 ++++++++++++++++++++++++++++++++++++++++++++
5 files changed, 228 insertions(+), 0 deletions(-)
create mode 100644 board/denx/m28evk/Makefile
create mode 100644 board/denx/m28evk/m28evk.c
create mode 100644 include/configs/m28evk.h

diff --git a/MAINTAINERS b/MAINTAINERS
index 2f60a60..61a55a8 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -847,6 +847,7 @@ Marek Vasut <marek.vasut@gmail.com>
palmtc xscale/pxa
vpac270 xscale/pxa
zipitz2 xscale/pxa
+ m28evk i.MX28
efikamx i.MX51

Hugo Villeneuve <hugo.villeneuve@lyrtech.com>
diff --git a/board/denx/m28evk/Makefile b/board/denx/m28evk/Makefile
new file mode 100644
index 0000000..4037199
--- /dev/null
+++ b/board/denx/m28evk/Makefile
@@ -0,0 +1,49 @@
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+#
+# 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).o
+
+COBJS := m28evk.o
+
+SRCS := $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+
+$(LIB): $(obj).depend $(OBJS)
+ $(call cmd_link_o_target, $(OBJS))
+
+clean:
+ rm -f $(OBJS)
+
+distclean: clean
+ rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/denx/m28evk/m28evk.c b/board/denx/m28evk/m28evk.c
new file mode 100644
index 0000000..5f4f787
--- /dev/null
+++ b/board/denx/m28evk/m28evk.c
@@ -0,0 +1,69 @@
+/*
+ * DENX M28 module
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * 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 <common.h>
+#include <asm/io.h>
+#include <asm/arch/regs-common.h>
+#include <asm/arch/regs-base.h>
+#include <asm/arch/regs-clkctrl.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/mx28.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Functions
+ */
+int board_early_init_f(void)
+{
+ /* IO0 clock at 480MHz */
+ mx28_set_ioclk(0, 480000);
+ /* IO1 clock at 480MHz */
+ mx28_set_ioclk(1, 480000);
+
+ /* SSP0 clock at 96MHz */
+ mx28_set_sspclk(0, 96000, 0);
+ /* SSP2 clock at 96MHz */
+ mx28_set_sspclk(2, 96000, 0);
+
+ return 0;
+}
+
+int board_init(void)
+{
+ /* Will change it for MX28 EVK later */
+ gd->bd->bi_arch_number = CONFIG_M28_MACHID;
+ /* Adress of boot parameters */
+ gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+
+ return 0;
+}
+
+int dram_init(void)
+{
+ /* dram_init must store complete ramsize in gd->ram_size */
+ gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
+ return 0;
+}
diff --git a/boards.cfg b/boards.cfg
index 8a5bfc1..c5d8a90 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -147,6 +147,7 @@ jadecpu arm arm926ejs jadecpu syteco
zmx25 arm arm926ejs zmx25 syteco mx25
imx27lite arm arm926ejs imx27lite logicpd mx27
magnesium arm arm926ejs imx27lite logicpd mx27
+m28evk arm arm926ejs - denx mx28
nhk8815 arm arm926ejs nhk8815 st nomadik
nhk8815_onenand arm arm926ejs nhk8815 st nomadik nhk8815:BOOT_ONENAND
omap5912osk arm arm926ejs - ti omap
diff --git a/include/configs/m28evk.h b/include/configs/m28evk.h
new file mode 100644
index 0000000..4f41e26
--- /dev/null
+++ b/include/configs/m28evk.h
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * 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 __M28_H__
+#define __M28_H__
+
+#include <asm/arch/regs-base.h>
+
+/*
+ * SoC configurations
+ */
+#define CONFIG_MX28 /* i.MX28 SoC */
+#define CONFIG_MX28_TO1_2
+#define CONFIG_SYS_HZ 1000 /* Ticks per second */
+
+#define CONFIG_M28_MACHID MACH_TYPE_M28EVK
+
+#define CONFIG_SYS_NO_FLASH
+#define CONFIG_SYS_ICACHE_OFF
+#define CONFIG_SYS_DCACHE_OFF
+#define CONFIG_BOARD_EARLY_INIT_F
+
+/*
+ * U-Boot Commands
+ */
+#include <config_cmd_default.h>
+#define CONFIG_DISPLAY_CPUINFO
+#define CONFIG_CMD_CACHE
+#undef CONFIG_CMD_DHCP
+#undef CONFIG_CMD_NET
+#undef CONFIG_CMD_NFS
+#undef CONFIG_CMD_PING
+#define CONFIG_CMD_SETEXPR
+
+/*
+ * Memory configurations
+ */
+#define CONFIG_NR_DRAM_BANKS 1 /* 2 banks of DRAM */
+#define PHYS_SDRAM_1 0x40000000 /* Base address */
+#define PHYS_SDRAM_1_SIZE 0x10000000 /* 256 MB */
+#define CONFIG_STACKSIZE 0x00010000 /* 128 KB stack */
+#define CONFIG_SYS_MALLOC_LEN 0x00400000 /* 4 MB for malloc */
+#define CONFIG_SYS_GBL_DATA_SIZE 128 /* Initial data */
+#define CONFIG_SYS_MEMTEST_START 0x40000000 /* Memtest start adr */
+#define CONFIG_SYS_MEMTEST_END 0x40400000 /* 4 MB RAM test */
+#define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM_1
+#define CONFIG_SYS_INIT_SP_ADDR 0x18000
+#define CONFIG_SYS_TEXT_BASE 0x40000000
+
+/*
+ * U-Boot general configurations
+ */
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_SYS_PROMPT "=> "
+#define CONFIG_SYS_CBSIZE 1024 /* Console I/O buffer size */
+#define CONFIG_SYS_PBSIZE \
+ (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
+ /* Print buffer size */
+#define CONFIG_SYS_MAXARGS 32 /* Max number of command args */
+#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
+ /* Boot argument buffer size */
+#define CONFIG_VERSION_VARIABLE /* U-BOOT version */
+#define CONFIG_AUTO_COMPLETE /* Command auto complete */
+#define CONFIG_CMDLINE_EDITING /* Command history etc */
+#define CONFIG_SYS_HUSH_PARSER
+#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
+
+/*
+ * Serial Driver
+ */
+#define CONFIG_PL011_SERIAL
+#define CONFIG_PL011_CLOCK 24000000
+#define CONFIG_PL01x_PORTS { (void *)MXS_UARTDBG_BASE }
+#define CONFIG_CONS_INDEX 0
+#define CONFIG_BAUDRATE 115200 /* Default baud rate */
+#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
+
+/*
+ * Boot Linux
+ */
+#define CONFIG_CMDLINE_TAG
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_BOOTDELAY 3
+#define CONFIG_BOOTFILE "uImage"
+#define CONFIG_BOOTARGS "console=ttyAM0,115200n8 "
+#define CONFIG_BOOTCOMMAND "run bootcmd_net"
+#define CONFIG_LOADADDR 0x42000000
+#define CONFIG_SYS_LOAD_ADDR CONFIG_LOADADDR
+
+#define CONFIG_ENV_IS_NOWHERE 1
+
+#endif /* __M28_H__ */
--
1.7.5.4