[U-Boot] [PATCH-ARM 3/3] Add Support for the SBC2440-II Board
kevin.morfitt at fearnside-systems.co.uk
kevin.morfitt at fearnside-systems.co.uk
Sun Nov 1 20:05:31 CET 2009
This patch adds support for the Embest SBC2440-II Board.
Tested on an Embest SBC2440-II Board with local u-boot patches as I don't have
any s3c2400 or s3c2410 boards but need this patch applying before I can submit
patches for the SBC2440-II Board. Also, ran MAKEALL for all ARM9 targets and no
new warnings or errors were found.
Signed-off-by: Kevin Morfitt <kevin.morfitt at fearnside-systems.co.uk>
---
MAINTAINERS | 4 +
MAKEALL | 1 +
Makefile | 3 +
board/embest/sbc2440ii/Makefile | 55 +++++++
board/embest/sbc2440ii/config.mk | 25 +++
board/embest/sbc2440ii/lowlevel_init.S | 219 +++++++++++++++++++++++++++
board/embest/sbc2440ii/sbc2440ii.c | 122 +++++++++++++++
cpu/arm920t/s3c24x0/timer.c | 1 +
include/configs/sbc2440ii.h | 254 ++++++++++++++++++++++++++++++++
9 files changed, 684 insertions(+), 0 deletions(-)
create mode 100644 board/embest/sbc2440ii/Makefile
create mode 100644 board/embest/sbc2440ii/config.mk
create mode 100644 board/embest/sbc2440ii/lowlevel_init.S
create mode 100644 board/embest/sbc2440ii/sbc2440ii.c
create mode 100644 include/configs/sbc2440ii.h
diff --git a/MAINTAINERS b/MAINTAINERS
index d70a9d2..65f8dfe 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -638,6 +638,10 @@ Nishanth Menon <nm at ti.com>
omap3_sdp3430 ARM CORTEX-A8 (OMAP3xx SoC)
omap3_zoom1 ARM CORTEX-A8 (OMAP3xx SoC)
+Kevin Morfitt <kevin.morfitt at fearnside-systems.co.uk>
+
+ sbc2440ii ARM920T
+
David Müller <d.mueller at elsoft.ch>
smdk2410 ARM920T
diff --git a/MAKEALL b/MAKEALL
index 5492d8f..c84b23e 100755
--- a/MAKEALL
+++ b/MAKEALL
@@ -552,6 +552,7 @@ LIST_ARM9=" \
openrd_base \
rd6281a \
sbc2410x \
+ sbc2440ii \
scb9328 \
sheevaplug \
smdk2400 \
diff --git a/Makefile b/Makefile
index b91b1c0..a6619e5 100644
--- a/Makefile
+++ b/Makefile
@@ -3020,6 +3020,9 @@ rd6281a_config: unconfig
sbc2410x_config: unconfig
@$(MKCONFIG) $(@:_config=) arm arm920t sbc2410x NULL s3c24x0
+sbc2440ii_config: unconfig
+ @$(MKCONFIG) $(@:_config=) arm arm920t sbc2440ii embest s3c24x0
+
scb9328_config : unconfig
@$(MKCONFIG) $(@:_config=) arm arm920t scb9328 NULL imx
diff --git a/board/embest/sbc2440ii/Makefile b/board/embest/sbc2440ii/Makefile
new file mode 100644
index 0000000..26237a2
--- /dev/null
+++ b/board/embest/sbc2440ii/Makefile
@@ -0,0 +1,55 @@
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+#
+# Modified for EMBEST SBC2440-II board with S3C2440 (ARM920T) cpu by:
+# (C) Copyright 2009
+# Kevin Morfitt, Fearnside Systems Ltd, <kevin.morfitt at fearnside-systems.co.uk>
+#
+# 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 := sbc2440ii.o
+SOBJS := lowlevel_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 $(obj).depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/embest/sbc2440ii/config.mk b/board/embest/sbc2440ii/config.mk
new file mode 100644
index 0000000..def11d8
--- /dev/null
+++ b/board/embest/sbc2440ii/config.mk
@@ -0,0 +1,25 @@
+#
+# (C) Copyright 2002
+# Gary Jennejohn, DENX Software Engineering, <gj at denx.de>
+# David Mueller, ELSOFT AG, <d.mueller at elsoft.ch>
+#
+# SAMSUNG SMDK2410 board with S3C2410X (ARM920T) cpu
+#
+# see http://www.samsung.com/ for more information on SAMSUNG
+#
+# Modified for EMBEST SBC2440-II board with S3C2440 (ARM920T) cpu by:
+# (C) Copyright 2009
+# Kevin Morfitt, Fearnside Systems Ltd, <kevin.morfitt at fearnside-systems.co.uk>
+
+#
+# SBC2440-II has 1 bank of 64 MB DRAM
+#
+# 3000'0000 to 3800'0000
+#
+# Linux-Kernel is expected to be at 3000'8000, entry 3000'8000
+#
+# we load ourself to 33F8'0000
+#
+# download area is 3000'0000
+
+TEXT_BASE = 0x33F80000
diff --git a/board/embest/sbc2440ii/lowlevel_init.S b/board/embest/sbc2440ii/lowlevel_init.S
new file mode 100644
index 0000000..95f49f8
--- /dev/null
+++ b/board/embest/sbc2440ii/lowlevel_init.S
@@ -0,0 +1,219 @@
+/*
+ * Memory Setup stuff - taken from blob memsetup.S
+ *
+ * Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw at its.tudelft.nl) and
+ * Jan-Derk Bakker (J.D.Bakker at its.tudelft.nl)
+ *
+ * Modified for the Samsung SMDK2410 by
+ * (C) Copyright 2002
+ * David Mueller, ELSOFT AG, <d.mueller at elsoft.ch>
+ *
+ * Modified for the friendly-arm SBC-2410X by
+ * (C) Copyright 2005
+ * JinHua Luo, GuangDong Linux Center, <luo.jinhua at gd-linux.com>
+ *
+ * Modified for the Embest SBC2440-II by
+ * (C) Copyright 2009
+ * Kevin Morfitt, Fearnside Systems Ltd, <kevin.morfitt at fearnside-systems.co.uk>
+ *
+ * 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 <config.h>
+#include <version.h>
+
+/*
+ * Taken from linux/arch/arm/boot/compressed/head-s3c2410.S
+ *
+ * Copyright (C) 2002 Samsung Electronics SW.LEE <hitchcar at sec.samsung.com>
+ */
+
+#define BWSCON 0x48000000
+
+#define DW8 (0x0)
+#define DW16 (0x1)
+#define DW32 (0x2)
+#define WAIT (0x1 << 2)
+#define UBLB (0x1 << 3)
+
+#define B1_BWSCON (DW16)
+#define B2_BWSCON (DW16)
+#define B3_BWSCON (DW16 + WAIT + UBLB)
+#define B4_BWSCON (DW16)
+#define B5_BWSCON (DW16)
+#define B6_BWSCON (DW32)
+#define B7_BWSCON (DW32)
+#define BWSCON_VAL ((B1_BWSCON << 4) + (B2_BWSCON << 8) + \
+ (B3_BWSCON << 12) + (B4_BWSCON << 16) + \
+ (B5_BWSCON << 20) + (B6_BWSCON << 24) + \
+ (B7_BWSCON << 28))
+
+#define B0_TACS 0x0
+#define B0_TCOS 0x0
+#define B0_TACC 0x7
+#define B0_TCOH 0x0
+#define B0_TAH 0x0
+#define B0_TACP 0x0
+#define B0_PMC 0x0
+#define BANKCON0_VAL ((B0_TACS << 13) + (B0_TCOS << 11) + (B0_TACC << 8) + \
+ (B0_TCOH << 6) + (B0_TAH << 4) + (B0_TACP << 2) + \
+ B0_PMC)
+
+#define B1_TACS 0x0
+#define B1_TCOS 0x0
+#define B1_TACC 0x7
+#define B1_TCOH 0x0
+#define B1_TAH 0x0
+#define B1_TACP 0x0
+#define B1_PMC 0x0
+#define BANKCON1_VAL ((B1_TACS << 13) + (B1_TCOS << 11) + (B1_TACC << 8) + \
+ (B1_TCOH << 6) + (B1_TAH << 4) + (B1_TACP << 2) + \
+ B1_PMC)
+
+#define B2_TACS 0x0
+#define B2_TCOS 0x0
+#define B2_TACC 0x7
+#define B2_TCOH 0x0
+#define B2_TAH 0x0
+#define B2_TACP 0x0
+#define B2_PMC 0x0
+#define BANKCON2_VAL ((B2_TACS << 13) + (B2_TCOS << 11) + (B2_TACC << 8) + \
+ (B2_TCOH << 6) + (B2_TAH << 4) + (B2_TACP << 2) + \
+ B2_PMC)
+
+#define B3_TACS 0x0 /* 0clk */
+#define B3_TCOS 0x3 /* 4clk */
+#define B3_TACC 0x7 /* 14clk */
+#define B3_TCOH 0x1 /* 1clk */
+#define B3_TAH 0x3 /* 4clk */
+#define B3_TACP 0x3 /* 6clk */
+#define B3_PMC 0x0 /* 16data */
+#define BANKCON3_VAL ((B3_TACS << 13) + (B3_TCOS << 11) + (B3_TACC << 8) + \
+ (B3_TCOH << 6) + (B3_TAH << 4) + (B3_TACP << 2) + \
+ B3_PMC)
+
+#define B4_TACS 0x0
+#define B4_TCOS 0x0
+#define B4_TACC 0x7
+#define B4_TCOH 0x0
+#define B4_TAH 0x0
+#define B4_TACP 0x0
+#define B4_PMC 0x0
+#define BANKCON4_VAL ((B4_TACS << 13) + (B4_TCOS << 11) + (B4_TACC << 8) + \
+ (B4_TCOH << 6) + (B4_TAH << 4) + (B4_TACP << 2) + \
+ B4_PMC)
+
+#define B5_TACS 0x0
+#define B5_TCOS 0x0
+#define B5_TACC 0x7
+#define B5_TCOH 0x0
+#define B5_TAH 0x0
+#define B5_TACP 0x0
+#define B5_PMC 0x0
+#define BANKCON5_VAL ((B5_TACS << 13) + (B5_TCOS << 11) + (B5_TACC << 8) + \
+ (B5_TCOH << 6) + (B5_TAH << 4) + (B5_TACP << 2) + \
+ B5_PMC)
+
+#define B6_MT 0x3 /* SDRAM */
+#define B6_TRCD 0x2
+#define B6_SCAN 0x1 /* 9bit */
+#define BANKCON6_VAL ((B6_MT << 15) + (B6_TRCD << 2) + B6_SCAN)
+
+#define B7_MT 0x3 /* SDRAM */
+#define B7_TRCD 0x2 /* 4clk */
+#define B7_SCAN 0x1 /* 9bit */
+#define BANKCON7_VAL ((B7_MT << 15) + (B7_TRCD << 2) + B7_SCAN)
+
+/* REFRESH parameter */
+#define REFEN 0x1 /* Refresh enable */
+#define TREFMD 0x0 /* CBR(CAS before RAS)/Auto refresh */
+#define TRP 0x0 /* 2clk */
+#define TRC 0x3 /* 7clk */
+#define TCHR 0x2 /* 3clk */
+#define REFCNT 1259
+#define REFRESH_VAL ((REFEN << 23) + (TREFMD << 22) + (TRP << 20) + \
+ (TRC << 18) + (TCHR << 16) + REFCNT)
+
+/* BANKSIZE parameter */
+#define BURST_EN 1 /* Enable burst mode */
+#define SCKE_EN 1 /* Enable SDRAM power-down mode */
+#define SCLK_EN 1 /* SCLK is active only during the access */
+#define BK67MAP 2 /* 128M/128M */
+#define BANKSIZE_VAL ((BURST_EN << 7) + (SCKE_EN << 5) + \
+ (SCLK_EN << 4) + BK67MAP)
+
+/* MRSRB6 parameter */
+#define WBL6 0 /* Burst */
+#define TM6 0 /* Modem register set */
+#define CL6 3 /* Latency is 3 clocks */
+#define BT6 0 /* Sequential */
+#define BL6 0
+#define MRSRB6_VAL ((WBL6 << 9) + (TM6 << 7) + (CL6 << 4) + \
+ (BT6 << 3) + BL6)
+
+/* MRSRB7 parameter */
+#define WBL7 0 /* Burst */
+#define TM7 0 /* Modem register set */
+#define CL7 3 /* Latency is 3 clocks */
+#define BT7 0 /* Sequential */
+#define BL7 0
+#define MRSRB7_VAL ((WBL7 << 9) + (TM7 << 7) + (CL7 << 4) + \
+ (BT7 << 3) + BL7)
+
+/**************************************/
+
+_TEXT_BASE:
+ .word TEXT_BASE
+
+.globl lowlevel_init
+lowlevel_init:
+ /* memory control configuration */
+ /* make r0 relative the current location so that it */
+ /* reads SMRDATA out of FLASH rather than memory ! */
+ ldr r0, =SMRDATA
+ ldr r1, _TEXT_BASE
+ sub r0, r0, r1
+ ldr r1, =BWSCON /* Bus Width Status Controller */
+ add r2, r0, #13*4
+0:
+ ldr r3, [r0], #4
+ str r3, [r1], #4
+ cmp r2, r0
+ bne 0b
+
+ /* everything is fine now */
+ mov pc, lr
+
+ .ltorg
+/* the literal pools origin */
+
+SMRDATA:
+ .word BWSCON_VAL
+ .word BANKCON0_VAL
+ .word BANKCON1_VAL
+ .word BANKCON2_VAL
+ .word BANKCON3_VAL
+ .word BANKCON4_VAL
+ .word BANKCON5_VAL
+ .word BANKCON6_VAL
+ .word BANKCON7_VAL
+ .word REFRESH_VAL
+ .word BANKSIZE_VAL
+ .word MRSRB6_VAL
+ .word MRSRB7_VAL
diff --git a/board/embest/sbc2440ii/sbc2440ii.c b/board/embest/sbc2440ii/sbc2440ii.c
new file mode 100644
index 0000000..7c793e9
--- /dev/null
+++ b/board/embest/sbc2440ii/sbc2440ii.c
@@ -0,0 +1,122 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger at sysgo.de>
+ *
+ * (C) Copyright 2002
+ * David Mueller, ELSOFT AG, <d.mueller at elsoft.ch>
+ *
+ * (C) Copyright 2005
+ * JinHua Luo, GuangDong Linux Center, <luo.jinhua at gd-linux.com>
+ *
+ * Modified for the Embest SBC2440-II by
+ * (C) Copyright 2009
+ * Kevin Morfitt, Fearnside Systems Ltd, <kevin.morfitt at fearnside-systems.co.uk>
+ *
+ * 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 <s3c2440.h>
+#include <asm/io.h>
+#include <netdev.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Miscellaneous platform dependent initialisations
+ */
+
+static inline void pll_settle_delay(unsigned long loops)
+{
+ __asm__ volatile ("1:\n"
+ "subs %0, %1, #1\n" "bne 1b" :
+ "=r" (loops) : "0"(loops));
+}
+
+int board_init(void)
+{
+ struct s3c24x0_clock_power *clk_power = s3c24x0_get_base_clock_power();
+ struct s3c24x0_gpio *gpio = s3c24x0_get_base_gpio();
+
+ /* to reduce PLL lock time, adjust the LOCKTIME register */
+ writel(0xFFFFFFFF, &clk_power->LOCKTIME);
+
+ /* configure UPLL */
+ writel((CONFIG_SYS_U_MDIV << 12) + (CONFIG_SYS_U_PDIV << 4) +
+ CONFIG_SYS_U_SDIV, &clk_power->UPLLCON);
+
+ /* some delay between UPLL and MPLL */
+ pll_settle_delay(8000);
+
+ /* configure MPLL */
+ writel((CONFIG_SYS_M_MDIV << 12) + (CONFIG_SYS_M_PDIV << 4) +
+ CONFIG_SYS_M_SDIV, &clk_power->MPLLCON);
+
+ /* configure the GPIO */
+ writel(CONFIG_SYS_GPACON, &gpio->GPACON);
+ writel(CONFIG_SYS_GPBCON, &gpio->GPBCON);
+ writel(CONFIG_SYS_GPBUP, &gpio->GPBUP);
+ writel(CONFIG_SYS_GPBDAT, &gpio->GPBDAT);
+ writel(CONFIG_SYS_GPCCON, &gpio->GPCCON);
+ writel(CONFIG_SYS_GPCUP, &gpio->GPCUP);
+ writel(CONFIG_SYS_GPDCON, &gpio->GPDCON);
+ writel(CONFIG_SYS_GPDUP, &gpio->GPDUP);
+ writel(CONFIG_SYS_GPECON, &gpio->GPECON);
+ writel(CONFIG_SYS_GPEUP, &gpio->GPEUP);
+ writel(CONFIG_SYS_GPFCON, &gpio->GPFCON);
+ writel(CONFIG_SYS_GPFUP, &gpio->GPFUP);
+ writel(CONFIG_SYS_GPGCON, &gpio->GPGCON);
+ writel(CONFIG_SYS_GPGUP, &gpio->GPGUP);
+ writel(CONFIG_SYS_GPHCON, &gpio->GPHCON);
+ writel(CONFIG_SYS_GPHUP, &gpio->GPHUP);
+ writel(CONFIG_SYS_GPJCON, &gpio->GPJCON);
+ writel(CONFIG_SYS_GPJUP, &gpio->GPJUP);
+ writel(CONFIG_SYS_EXTINT0, &gpio->EXTINT0);
+ writel(CONFIG_SYS_EXTINT1, &gpio->EXTINT1);
+ writel(CONFIG_SYS_EXTINT2, &gpio->EXTINT2);
+ writel(CONFIG_SYS_EINTMASK, &gpio->EINTMASK);
+
+ /* arch number of SBC2440-II Board */
+ gd->bd->bi_arch_number = MACH_TYPE_SBC2440II;
+
+ /* adress of boot parameters */
+ gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+
+ return 0;
+}
+
+int dram_init(void)
+{
+ gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+ gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
+
+ return 0;
+}
+
+#ifdef CONFIG_CMD_NET
+int board_eth_init(bd_t *bis)
+{
+ int rc = 0;
+#ifdef CONFIG_CS8900
+ rc = cs8900_initialize(0, CONFIG_CS8900_BASE);
+#endif
+ return rc;
+}
+#endif
diff --git a/cpu/arm920t/s3c24x0/timer.c b/cpu/arm920t/s3c24x0/timer.c
index 2ee1518..bbe4c07 100644
--- a/cpu/arm920t/s3c24x0/timer.c
+++ b/cpu/arm920t/s3c24x0/timer.c
@@ -180,6 +180,7 @@ ulong get_tbclk(void)
#if defined(CONFIG_SMDK2400) || defined(CONFIG_TRAB)
tbclk = timer_load_val * 100;
#elif defined(CONFIG_SBC2410X) || \
+ defined(CONFIG_SBC2440II) || \
defined(CONFIG_SMDK2410) || \
defined(CONFIG_VCMA9)
tbclk = CONFIG_SYS_HZ;
diff --git a/include/configs/sbc2440ii.h b/include/configs/sbc2440ii.h
new file mode 100644
index 0000000..7ac36cf
--- /dev/null
+++ b/include/configs/sbc2440ii.h
@@ -0,0 +1,254 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger at sysgo.de>
+ * Gary Jennejohn <gj at denx.de>
+ * David Mueller <d.mueller at elsoft.ch>
+ *
+ * Modified for the friendly-arm SBC-2410X by
+ * (C) Copyright 2005
+ * JinHua Luo, GuangDong Linux Center, <luo.jinhua at gd-linux.com>
+ *
+ * Modified for the Embest SBC2440-II by
+ * (C) Copyright 2009
+ * Kevin Morfitt, Fearnside Systems Ltd, <kevin.morfitt at fearnside-systems.co.uk>
+ *
+ * Configuation settings for the friendly-arm SBC-2410X board.
+ *
+ * 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
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#define CONFIG_IDENT_STRING " for Embest SBC2440-II"
+
+/* If we are developing, we might want to start armboot from ram
+ so we MUST NOT initialize critical regs like mem-timing ... */
+#undef CONFIG_SKIP_LOWLEVEL_INIT /* undef for developing */
+
+/* High Level Configuration Options (easy to change) */
+#define CONFIG_ARM920T 1 /* This is an ARM920T Core */
+#define CONFIG_S3C24X0 1 /* in a SAMSUNG S3C24X0 type of SoC */
+#define CONFIG_S3C2440 1 /* specifically, a SAMSUNG S3C2440 SoC*/
+#define CONFIG_SBC2440II 1 /* on an Embest SBC-2440-II Board */
+#define CONFIG_DO_ARCH_PRE_LOWLEVEL_INIT
+
+/* input clock of PLL - the SBC2440-II has 12MHz input clock */
+#define CONFIG_SYS_CLK_FREQ 12000000
+
+/* The PLL values for MPLL = 400MHz, UPLL = 48MHz
+ The clock frequency ratios are set to 1:4:8 ie:
+ PCLK = 50MHz
+ HCLK = 100MHz
+ FCLK = 400MHz
+ */
+/* The MPLL values. */
+#define CONFIG_SYS_M_MDIV 0x5C
+#define CONFIG_SYS_M_PDIV 1
+#define CONFIG_SYS_M_SDIV 1
+
+/* The UPLL values. */
+#define CONFIG_SYS_U_MDIV 0x38
+#define CONFIG_SYS_U_PDIV 2
+#define CONFIG_SYS_U_SDIV 2
+
+/* We don't need the MMU or interrupts. */
+#undef USE_920T_MMU
+#undef CONFIG_USE_IRQ
+
+/* The GPIO configuration */
+#define CONFIG_SYS_GPACON 0x007FFFFF
+#define CONFIG_SYS_GPBCON 0x00055555
+#define CONFIG_SYS_GPBUP 0x000007FF
+#define CONFIG_SYS_GPBDAT 0x000001C0 /* Switch on LED1. */
+#define CONFIG_SYS_GPCCON 0xAAAAAAAA
+#define CONFIG_SYS_GPCUP 0x0000FFFF
+#define CONFIG_SYS_GPDCON 0xAAAAAAAA
+#define CONFIG_SYS_GPDUP 0x0000FFFF
+#define CONFIG_SYS_GPECON 0xAAAAA800
+#define CONFIG_SYS_GPEUP 0x00001FFF
+#define CONFIG_SYS_GPFCON 0x000055AA
+#define CONFIG_SYS_GPFUP 0x000000FF
+#define CONFIG_SYS_GPGCON 0xFD95FFBA
+#define CONFIG_SYS_GPGUP 0x0000FFFF
+#define CONFIG_SYS_GPHCON 0x0002FAAA
+#define CONFIG_SYS_GPHUP 0x000007FF
+#define CONFIG_SYS_GPJCON 0x02FAAAAA
+#define CONFIG_SYS_GPJUP 0x00001FFF
+#define CONFIG_SYS_EXTINT0 0x22222222
+#define CONFIG_SYS_EXTINT1 0x22222222
+#define CONFIG_SYS_EXTINT2 0x22222222
+#define CONFIG_SYS_EINTMASK 0x00FFFFF0
+
+/*
+ * Hardware drivers
+ */
+#define CONFIG_CS8900 1 /* we have a CS8900 on-board */
+#define CONFIG_CS8900_BASE 0x19000300
+#define CONFIG_CS8900_BUS16 1 /* the Linux driver does accesses as shorts */
+
+/* Serial console configuration */
+#define CONFIG_S3C24X0_SERIAL
+#define CONFIG_SERIAL1 1 /* we use SERIAL 1 on SBC2440-II */
+#define CONFIG_BAUDRATE 115200
+/* valid baudrates */
+#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
+
+/* RTC */
+#define CONFIG_RTC_S3C24X0 1
+
+/* allow to overwrite serial and ethaddr */
+#define CONFIG_ENV_OVERWRITE
+
+/* BOOTP options */
+#define CONFIG_BOOTP_BOOTFILESIZE
+#define CONFIG_BOOTP_BOOTPATH
+#define CONFIG_BOOTP_GATEWAY
+#define CONFIG_BOOTP_HOSTNAME
+
+/* Command line configuration. */
+#include <config_cmd_default.h>
+
+#define CONFIG_CMD_ASKENV
+#define CONFIG_CMD_CACHE
+#define CONFIG_CMD_DATE
+#define CONFIG_CMD_ELF
+#define CONFIG_CMD_PING
+#define CONFIG_CMD_DHCP
+#define CONFIG_CMD_NAND
+#define CONFIG_JFFS2_NAND
+#define CONFIG_MTD_DEVICE
+#define CONFIG_MTD_PARTITIONS
+#define CONFIG_CMD_JFFS2
+#define CONFIG_JFFS2_CMDLINE
+#define MTDIDS_DEFAULT "nand0=sbc2440-II-nand"
+#define MTDPARTS_DEFAULT \
+ "mtdparts=sbc2440-II-nand:2m(kernel),62m(rootfs)"
+#define CONFIG_EXTRA_ENV_SETTINGS "autostart=yes"
+#define CONFIG_BOOTDELAY 3
+#define CONFIG_BOOTARGS \
+"noinitrd root=/dev/mtdblock1 rootfstype=jffs2 init=/linuxrc console=ttySAC0"
+#define CONFIG_LOADADDR 30008000
+#define CONFIG_BOOTCOMMAND "nboot 30008000 0 0"
+
+/* kgdb settings */
+#if defined(CONFIG_CMD_KGDB)
+ #define CONFIG_KGDB_BAUDRATE 115200
+ #define CONFIG_KGDB_SER_INDEX 1
+#endif
+
+/* Miscellaneous configurable options */
+#define CONFIG_SYS_LONGHELP /* undef to save memory */
+#define CONFIG_SYS_PROMPT "[ SBC2440-II ]# "
+#define CONFIG_SYS_CBSIZE 256
+#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16)
+#define CONFIG_SYS_MAXARGS 16
+#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
+#define CONFIG_SYS_MEMTEST_START 0x30000000
+#define CONFIG_SYS_MEMTEST_END 0x33F00000
+#undef CONFIG_SYS_CLKS_IN_HZ /* everything, incl board info, in Hz */
+#define CONFIG_SYS_HZ 1000
+
+/* Stack sizes */
+#define CONFIG_STACKSIZE (128*1024) /* regular stack */
+#ifdef CONFIG_USE_IRQ
+ #define CONFIG_STACKSIZE_IRQ (4*1024) /* IRQ stack */
+ #define CONFIG_STACKSIZE_FIQ (4*1024) /* FIQ stack */
+#endif
+
+/* Physical Memory Map */
+#define CONFIG_NR_DRAM_BANKS 1 /* we have 1 bank of DRAM */
+#define PHYS_SDRAM_1 0x30000000 /* SDRAM Bank #1 */
+#define PHYS_SDRAM_1_SIZE 0x04000000 /* 64 MB */
+#define PHYS_FLASH_1 0x00000000 /* Flash Bank #1 */
+#define CONFIG_SYS_FLASH_BASE PHYS_FLASH_1
+#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
+#define CONFIG_SYS_LOAD_ADDR 0x33000000 /* default load address */
+
+/* Size of malloc() pool */
+#define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + 128*1024)
+/* size in bytes reserved for initial data */
+#define CONFIG_SYS_GBL_DATA_SIZE 128
+
+/* FLASH and environment and organization */
+#define CONFIG_ENV_IS_IN_FLASH 1
+#define CONFIG_ENV_SIZE 0x10000 /* Total Size of Environment Sector */
+#define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */
+#define PHYS_FLASH_SIZE 0x00200000 /* 2MB */
+#define CONFIG_SYS_MAX_FLASH_SECT (35)
+#define CONFIG_ENV_ADDR \
+ (CONFIG_SYS_FLASH_BASE + PHYS_FLASH_SIZE - CONFIG_ENV_SIZE)
+
+/* FLASH driver setup */
+#define CONFIG_SYS_FLASH_CFI 1
+#define CONFIG_FLASH_CFI_DRIVER 1
+#define CONFIG_SYS_FLASH_USE_BUFFER_WRITE 1
+
+/* timeout values are in ticks */
+#define CONFIG_SYS_FLASH_ERASE_TOUT (20*CONFIG_SYS_HZ)
+#define CONFIG_SYS_FLASH_WRITE_TOUT (20*CONFIG_SYS_HZ)
+
+/* NAND flash settings */
+#if defined(CONFIG_CMD_NAND)
+ #define CONFIG_NAND_S3C2410
+ #define CONFIG_SYS_NAND_BASE 0x4e00000c
+ #define CONFIG_SYS_MAX_NAND_DEVICE 1
+ #define SECTORSIZE 512
+ #define CONFIG_S3C2410_NAND_HWECC
+ #define CONFIG_SYS_NAND_LARGEPAGE
+ #define CONFIG_SYS_NAND_TACLS 0
+ #define CONFIG_SYS_NAND_TWRPH0 3
+ #define CONFIG_SYS_NAND_TWRPH1 1
+#endif
+
+/* Kernel boot argument config. */
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_INITRD_TAG
+#define CONFIG_CMDLINE_TAG
+
+/* USB settings */
+#define CONFIG_USB_STORAGE 1
+#define CONFIG_CMD_USB 1
+#define CONFIG_USB_OHCI_NEW 1
+#define CONFIG_DOS_PARTITION 1
+#define CONFIG_SYS_USB_OHCI_CPU_INIT 1
+#define CONFIG_SYS_USB_OHCI_REGS_BASE 0x49000000
+#define CONFIG_SYS_USB_OHCI_SLOT_NAME "sbc2440-II"
+#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 1
+#define CONFIG_USB_STORAGE 1
+#define CONFIG_CMD_FAT 1
+
+/*-----------------------------------------------------------------------
+ * Enable network
+ */
+#define CONFIG_NET_MULTI
+
+/* Other settings. */
+#define CONFIG_SYS_64BIT_VSPRINTF
+#define CONFIG_SYS_HUSH_PARSER
+#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
+#define CONFIG_CMDLINE_EDITING
+#ifdef CONFIG_CMDLINE_EDITING
+ #undef CONFIG_AUTO_COMPLETE
+#else
+ #define CONFIG_AUTO_COMPLETE
+#endif
+
+#endif /* __CONFIG_H */
--
1.6.0.6
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