[U-Boot] [PATCH v2 11/11] S3C24XX: Add support to MINI2416 board
José Miguel Gonçalves
jose.goncalves at inov.pt
Fri Sep 14 19:29:02 CEST 2012
The MINI2416 board is based on a Samsung's S3C2416 SoC and has 64MB DDR2 SDRAM,
256MB NAND Flash, a LAN9220 Ethernet Controller and a WM8731 Audio CODEC.
This U-Boot port was implemented and tested on a unit bought to Boardcon
(http://www.armdesigner.com/) but there are some other chinese providers
that can supply it with a selectable NAND chip from 128MB to 1GB.
Signed-off-by: José Miguel Gonçalves <jose.goncalves at inov.pt>
---
Changes for v2:
- Coding style cleanup
- Use of Use of clrbits_le32(), setbits_le32() and clrsetbits_le32()
- Use of register bit macros instead of magic numbers
- Use of serial and rtc drivers implemented for s3c24x0
---
MAINTAINERS | 4 +
board/boardcon/mini2416/Makefile | 47 ++++++++
board/boardcon/mini2416/config.mk | 4 +
board/boardcon/mini2416/mini2416.c | 98 ++++++++++++++++
board/boardcon/mini2416/mini2416_spl.c | 200 ++++++++++++++++++++++++++++++++
board/boardcon/mini2416/u-boot-spl.lds | 63 ++++++++++
boards.cfg | 1 +
include/configs/mini2416.h | 200 ++++++++++++++++++++++++++++++++
8 files changed, 617 insertions(+)
create mode 100644 board/boardcon/mini2416/Makefile
create mode 100644 board/boardcon/mini2416/config.mk
create mode 100644 board/boardcon/mini2416/mini2416.c
create mode 100644 board/boardcon/mini2416/mini2416_spl.c
create mode 100644 board/boardcon/mini2416/u-boot-spl.lds
create mode 100644 include/configs/mini2416.h
diff --git a/MAINTAINERS b/MAINTAINERS
index 4aabcff..593baa0 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -655,6 +655,10 @@ Fabio Estevam <fabio.estevam at freescale.com>
mx53ard i.MX53
mx53smd i.MX53
+José Gonçalves <jose.goncalves at inov.pt>
+
+ mini2416 ARM926EJS (S3C2416 SoC)
+
Daniel Gorsulowski <daniel.gorsulowski at esd.eu>
meesc ARM926EJS (AT91SAM9263 SoC)
diff --git a/board/boardcon/mini2416/Makefile b/board/boardcon/mini2416/Makefile
new file mode 100644
index 0000000..bf92ba1
--- /dev/null
+++ b/board/boardcon/mini2416/Makefile
@@ -0,0 +1,47 @@
+#
+# (C) Copyright 2012 INOV - INESC Inovacao
+# Jose Goncalves <jose.goncalves at inov.pt>
+#
+# 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
+
+ifdef CONFIG_SPL_BUILD
+COBJS += mini2416_spl.o
+else
+COBJS += mini2416.o
+endif
+
+SRCS := $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+
+$(LIB): $(obj).depend $(OBJS)
+ $(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/boardcon/mini2416/config.mk b/board/boardcon/mini2416/config.mk
new file mode 100644
index 0000000..f1230d0
--- /dev/null
+++ b/board/boardcon/mini2416/config.mk
@@ -0,0 +1,4 @@
+PAD_TO := 0x2000
+ifndef CONFIG_SPL_BUILD
+ALL-y += $(obj)u-boot-ubl.bin
+endif
diff --git a/board/boardcon/mini2416/mini2416.c b/board/boardcon/mini2416/mini2416.c
new file mode 100644
index 0000000..e31d2c3
--- /dev/null
+++ b/board/boardcon/mini2416/mini2416.c
@@ -0,0 +1,98 @@
+/*
+ * (C) Copyright 2012 INOV - INESC Inovacao
+ * Jose Goncalves <jose.goncalves at inov.pt>
+ *
+ * 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 <netdev.h>
+#include <asm/io.h>
+#include <asm/arch/s3c24xx_cpu.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static void ether_if_init(void)
+{
+ /* Ethernet chip is on memory bank 1 */
+ struct s3c24xx_smc *const smc = s3c24xx_get_base_smc(S3C24XX_SMC1);
+ struct s3c24xx_gpio *const gpio = s3c24xx_get_base_gpio();
+
+ /* Set bus timings */
+ writel(0, &smc->smbidcy); /* Idle Cycle */
+ writel(14, &smc->smbwstwr); /* Write Wait State */
+ writel(2, &smc->smbwstoen); /* Output Enable Assertion Delay */
+ writel(2, &smc->smbwstwen); /* Write Enable Assertion Delay */
+ writel(14, &smc->smbwstrd); /* Read Wait State */
+
+ /* Init SMC control register */
+ clrsetbits_le32(&smc->smbc,
+ (SMBC_RSMAVD_WR | SMBC_RSMAVD_RD | SMBC_MW_MASK |
+ SMBC_WAIT_POL),
+ (SMBC_DRNOWE | SMBC_DRNCS | SMBC_MW_16BIT |
+ SMBC_WAIT_EN | SMBC_RBLE));
+
+ /* Enable CS pin */
+ setbits_le32(&gpio->gpacon, (1 << 12));
+}
+
+int board_init(void)
+{
+ struct s3c24xx_gpio *const gpio = s3c24xx_get_base_gpio();
+
+ /* Turn LED on */
+ clrbits_le32(&gpio->gpcdat, (1 << 5));
+
+ /* Init interface with Ethernet chip */
+ ether_if_init();
+
+ /* Arch number of MINI2416 Board */
+ gd->bd->bi_arch_number = MACH_TYPE_MINI2416;
+
+ /* Address of boot parameters */
+ gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+ return 0;
+}
+
+int dram_init(void)
+{
+ gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
+ CONFIG_SYS_SDRAM_SIZE);
+ return 0;
+}
+
+#ifdef CONFIG_DISPLAY_BOARDINFO
+int checkboard(void)
+{
+ printf("\nBoard: MINI2416\n");
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_CMD_NET
+int board_eth_init(bd_t *bis)
+{
+ int rc = 0;
+#ifdef CONFIG_SMC911X
+ rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
+#endif
+ return rc;
+}
+#endif
diff --git a/board/boardcon/mini2416/mini2416_spl.c b/board/boardcon/mini2416/mini2416_spl.c
new file mode 100644
index 0000000..ba9bbec
--- /dev/null
+++ b/board/boardcon/mini2416/mini2416_spl.c
@@ -0,0 +1,200 @@
+/*
+ * (C) Copyright 2012 INOV - INESC Inovacao
+ * Jose Goncalves <jose.goncalves at inov.pt>
+ *
+ * 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 <version.h>
+#include <nand.h>
+#include <asm/io.h>
+#include <asm/arch/s3c24xx_cpu.h>
+
+/* FCLK = 800 MHz, HCLK = 133 MHz, PCLK = 66 MHz */
+#define M_MDIV 400
+#define M_PDIV 3
+#define M_SDIV 1
+#define ARMDIV 1
+#define PREDIV 2
+#define HCLKDIV 1
+
+/* EPLLclk = 96MHz */
+#define E_MDIV 32
+#define E_PDIV 1
+#define E_SDIV 2
+
+DECLARE_GLOBAL_DATA_PTR;
+static gd_t gdata;
+
+inline void hang(void)
+{
+ serial_puts("### ERROR ### Please RESET the board ###\n");
+ for (;;)
+ /* NOP */;
+}
+
+static inline void asm_delay(ulong loops)
+{
+ asm volatile ("1:\n" "subs %0, %1, #1\n"
+ "bne 1b" : "=r" (loops) : "0"(loops));
+}
+
+static inline void watchdog_disable(void)
+{
+ struct s3c24xx_watchdog *const watchdog = s3c24xx_get_base_watchdog();
+
+ writel(0, &watchdog->wtcon);
+}
+
+static void pinmux_init(void)
+{
+ struct s3c24xx_gpio *const gpio = s3c24xx_get_base_gpio();
+
+ /* Init LED pin and turn LED off */
+ clrsetbits_le32(&gpio->gpccon, (0x3 << 10), (0x1 << 10));
+ setbits_le32(&gpio->gpcdat, (1 << 5));
+
+ /* Init UART pins */
+ writel(0x0000AAAA, &gpio->gphcon);
+
+ /* Init NAND interface */
+ setbits_le32(&gpio->gpacon, (0x3F << 17));
+}
+
+static void pll_init(void)
+{
+ struct s3c2416_sysctl *const sysctl = s3c2416_get_base_sysctl();
+
+ /* Configure clocks division ratio */
+ clrsetbits_le32(&sysctl->clkdiv0,
+ CLKDIV0_ARMDIV_MASK | CLKDIV0_PREDIV_MASK |
+ CLKDIV0_HCLKDIV_MASK,
+ CLKDIV0_ARMDIV(ARMDIV) | CLKDIV0_PREDIV(PREDIV) |
+ CLKDIV0_HALFHCLK | CLKDIV0_PCLKDIV |
+ CLKDIV0_HCLKDIV(HCLKDIV));
+
+ /* Set MPLL lock time */
+ writel(0x0E10, &sysctl->lockcon0);
+
+ /* Configure MPLL */
+ writel(MPLLCON_MDIV(M_MDIV) | MPLLCON_PDIV(M_PDIV) |
+ MPLLCON_SDIV(M_SDIV), &sysctl->mpllcon);
+
+ /* Set EPLL lock time */
+ writel(0x1780, &sysctl->lockcon1);
+
+ /* Configure EPLL */
+ writel(EPLLCON_MDIV(E_MDIV) | EPLLCON_PDIV(E_PDIV) |
+ EPLLCON_SDIV(E_SDIV), &sysctl->epllcon);
+
+ /* MSYSCLK = MPLL and ESYSCLK = EPLL */
+ setbits_le32(&sysctl->clksrc,
+ CLKSRC_MSYSCLK_MPLL | CLKSRC_ESYSCLK_EPLL);
+}
+
+static void dramctl_init(void)
+{
+ struct s3c24xx_dramctl *const dramctl = s3c24xx_get_base_dramctl();
+
+ /* Step 1: Init BANKCFG & BANKCON1 */
+ writel(BANKCFG_VAL_DDR2, &dramctl->bankcfg);
+ writel(BANKCON1_VAL_DDR2, &dramctl->bankcon1);
+
+ /* Step 2: Init BANKCON2 */
+ writel(BANKCON2_VAL_DDR2, &dramctl->bankcon2);
+
+ /* Step 3: Issue a PALL command */
+ writel(BANKCON1_VAL_DDR2 | BANKCON1_INIT_PALL, &dramctl->bankcon1);
+
+ /* Step 4: Issue a EMRS2 command */
+ writel(BANKCON3_VAL_EMRS2, &dramctl->bankcon3);
+ writel(BANKCON1_VAL_DDR2 | BANKCON1_INIT_EMRS, &dramctl->bankcon1);
+
+ /* Step 5: Issue a EMRS3 command */
+ writel(BANKCON3_VAL_EMRS3, &dramctl->bankcon3);
+ writel(BANKCON1_VAL_DDR2 | BANKCON1_INIT_EMRS, &dramctl->bankcon1);
+
+ /* Step 6: Issue a EMRS1 command */
+ writel(BANKCON3_VAL_EMRS1, &dramctl->bankcon3);
+ writel(BANKCON1_VAL_DDR2 | BANKCON1_INIT_EMRS, &dramctl->bankcon1);
+
+ /* Step 7: Issue a MRS command */
+ writel(BANKCON3_VAL_MRS | BANKCON3_MRS_DLL_RESET, &dramctl->bankcon3);
+ writel(BANKCON1_VAL_DDR2 | BANKCON1_INIT_MRS, &dramctl->bankcon1);
+
+ /* Step 8: Issue a PALL command */
+ writel(BANKCON1_VAL_DDR2 | BANKCON1_INIT_PALL, &dramctl->bankcon1);
+
+ /* Step 9: Write 0xFF into the refresh timer */
+ writel(0xFF, &dramctl->refresh);
+
+ /* Step 10: Wait more than 120 clocks */
+ asm_delay(256);
+
+ /* Step 11: Issue a MRS command */
+ writel(BANKCON3_VAL_MRS, &dramctl->bankcon3);
+ writel(BANKCON1_VAL_DDR2 | BANKCON1_INIT_MRS, &dramctl->bankcon1);
+
+ /* Step 12: Issue a EMRS1 command */
+ writel(BANKCON3_VAL_EMRS1 | BANKCON3_EMRS1_OCD7 | BANKCON3_EMRS1_CAS3,
+ &dramctl->bankcon3);
+ writel(BANKCON1_VAL_DDR2 | BANKCON1_INIT_EMRS, &dramctl->bankcon1);
+
+ writel(BANKCON3_VAL_EMRS1 | BANKCON3_EMRS1_CAS3, &dramctl->bankcon3);
+ writel(BANKCON1_VAL_DDR2 | BANKCON1_INIT_EMRS, &dramctl->bankcon1);
+
+ /* Step 13: Write 0x87 into the refresh timer */
+ writel(0x87, &dramctl->refresh);
+
+ /* Step 14: Normal Mode */
+ writel(BANKCON1_VAL_DDR2 | BANKCON1_INIT_NORMAL, &dramctl->bankcon1);
+}
+
+void board_init_f(ulong bootflag)
+{
+ watchdog_disable();
+ pinmux_init();
+ pll_init();
+
+ /*
+ * We call relocate_code() with relocation target set to the SPL entry
+ * point. This will result in relocation getting skipped and only .bss
+ * initialization is performed before jumping to board_init_r().
+ */
+ relocate_code(CONFIG_SPL_STACK, &gdata, CONFIG_SPL_TEXT_BASE);
+}
+
+void board_init_r(gd_t *id, ulong dest_addr)
+{
+ gd = id;
+ gd->baudrate = CONFIG_BAUDRATE;
+ serial_init();
+
+ /* Print U-Boot SPL version string */
+ serial_puts("\n\nU-Boot SPL " PLAIN_VERSION);
+ serial_puts(" (" U_BOOT_DATE " - " U_BOOT_TIME ")\n");
+
+ dramctl_init();
+ nand_init();
+
+ serial_puts("Loading U-Boot from NAND Flash...\n");
+
+ nand_boot();
+}
diff --git a/board/boardcon/mini2416/u-boot-spl.lds b/board/boardcon/mini2416/u-boot-spl.lds
new file mode 100644
index 0000000..d339b0d
--- /dev/null
+++ b/board/boardcon/mini2416/u-boot-spl.lds
@@ -0,0 +1,63 @@
+/*
+ * (C) Copyright 2012 INOV - INESC Inovacao
+ * Jose Goncalves <jose.goncalves at inov.pt>
+ *
+ * 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
+ */
+
+MEMORY { .iram : ORIGIN = CONFIG_SPL_TEXT_BASE, \
+ LENGTH = CONFIG_SPL_MAX_SIZE }
+MEMORY { .sram : ORIGIN = CONFIG_SPL_BSS_START_ADDR, \
+ LENGTH = CONFIG_SPL_BSS_MAX_SIZE }
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+ .text :
+ {
+ CPUDIR/start.o (.text)
+ *(.text*)
+ } > .iram
+
+ . = ALIGN(4);
+ .rodata :
+ {
+ *(SORT_BY_ALIGNMENT(.rodata*))
+ } > .iram
+
+ . = ALIGN(4);
+ .data :
+ {
+ *(SORT_BY_ALIGNMENT(.data*))
+ } > .iram
+
+ . = ALIGN(4);
+ _end = .;
+
+ .bss :
+ {
+ . = ALIGN(4);
+ __bss_start = .;
+ *(.bss*)
+ . = ALIGN(4);
+ __bss_end__ = .;
+ } >.sram
+}
diff --git a/boards.cfg b/boards.cfg
index 72e7803..bf084a0 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -193,6 +193,7 @@ omap730p2_cs0boot arm arm926ejs omap730p2 ti omap
omap730p2_cs3boot arm arm926ejs omap730p2 ti omap omap730p2:CS3_BOOT
edminiv2 arm arm926ejs - LaCie orion5x
dkb arm arm926ejs - Marvell pantheon
+mini2416 arm arm926ejs mini2416 boardcon s3c24xx
spear300 arm arm926ejs spear300 spear spear spear3xx_evb:spear300
spear300_nand arm arm926ejs spear300 spear spear spear3xx_evb:spear300,nand
spear300_usbtty arm arm926ejs spear300 spear spear spear3xx_evb:spear300,usbtty
diff --git a/include/configs/mini2416.h b/include/configs/mini2416.h
new file mode 100644
index 0000000..406a7e6
--- /dev/null
+++ b/include/configs/mini2416.h
@@ -0,0 +1,200 @@
+/*
+ * (C) Copyright 2012 INOV - INESC Inovacao
+ * Jose Goncalves <jose.goncalves at inov.pt>
+ *
+ * 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
+
+/*
+ * SoC Configuration
+ */
+#define CONFIG_ARM926EJS /* ARM926EJS CPU Core */
+#define CONFIG_S3C24XX /* SAMSUNG S3C24XX Family */
+#define CONFIG_S3C2416 /* SAMSUNG S3C2416 SoC */
+#define CONFIG_SYS_CLK_FREQ 12000000
+#define CONFIG_SYS_HZ 1000
+
+/*
+ * Memory Information
+ */
+#define CONFIG_SYS_IRAM_BASE 0x00000000 /* Steppingstone base address */
+#define CONFIG_SYS_IRAM_SIZE (8 << 10) /* 8KB of Steppingstone */
+#define CONFIG_SYS_IRAM_END (CONFIG_SYS_IRAM_BASE + CONFIG_SYS_IRAM_SIZE)
+
+#define CONFIG_SYS_SRAM_BASE 0x00002000 /* SRAM base address */
+#define CONFIG_SYS_SRAM_SIZE (56 << 10) /* 56KB of SRAM */
+#define CONFIG_SYS_SRAM_END (CONFIG_SYS_SRAM_BASE + CONFIG_SYS_SRAM_SIZE)
+
+#define CONFIG_SYS_SDRAM_BASE 0x30000000 /* DDR2 SDRAM base address */
+#define CONFIG_SYS_SDRAM_SIZE (64 << 20) /* 64MB of DDR2 SDRAM */
+#define CONFIG_SYS_SDRAM_END (CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_SDRAM_SIZE)
+
+/*
+ * Linux Interface
+ */
+#define MACH_TYPE_MINI2416 3850
+#define CONFIG_MACH_TYPE MACH_TYPE_MINI2416
+#define CONFIG_CMDLINE_TAG
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_BOOTDELAY 3
+#define CONFIG_BOOTARGS "console=ttySAC3,115200n8"
+#define CONFIG_BOOTCOMMAND "" /* TBD */
+
+/*
+ * SPL
+ */
+#define CONFIG_SPL
+#define CONFIG_SPL_SERIAL_SUPPORT
+#define CONFIG_SPL_NAND_SUPPORT
+#define CONFIG_SPL_NAND_SIMPLE
+#define CONFIG_SPL_NAND_LOAD
+#define CONFIG_SPL_TEXT_BASE 0x00000000 /* CONFIG_SYS_IRAM_BASE */
+#define CONFIG_SPL_MAX_SIZE CONFIG_SYS_IRAM_SIZE
+#define CONFIG_SPL_BSS_START_ADDR CONFIG_SYS_SRAM_BASE
+#define CONFIG_SPL_BSS_MAX_SIZE (CONFIG_SYS_SRAM_SIZE - (8 << 10))
+#define CONFIG_SPL_STACK CONFIG_SYS_SRAM_END /* 8KB for stack */
+
+/*
+ * Monitor Interface
+ */
+#define CONFIG_SYS_PROMPT "MINI2416 # "
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_SYS_CBSIZE 1024
+#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
+ sizeof(CONFIG_SYS_PROMPT) + 16)
+#define CONFIG_SYS_MAXARGS 16
+#define CONFIG_CMDLINE_EDITING
+
+/*
+ * Command Definition
+ */
+#define CONFIG_SYS_NO_FLASH /* No NOR Flash */
+#include <config_cmd_default.h>
+#define CONFIG_CMD_CACHE
+#define CONFIG_CMD_DATE
+#define CONFIG_CMD_DHCP
+#define CONFIG_CMD_MISC
+#define CONFIG_CMD_NAND
+#define CONFIG_CMD_PING
+
+/*
+ * Miscellaneous Settings
+ */
+#define CONFIG_SKIP_LOWLEVEL_INIT
+#define CONFIG_DISPLAY_CPUINFO
+#define CONFIG_DISPLAY_BOARDINFO
+#define CONFIG_NR_DRAM_BANKS 1
+#define CONFIG_SYS_LOAD_ADDR (CONFIG_SYS_SDRAM_BASE + (1 << 20))
+#define CONFIG_SYS_MONITOR_BASE (CONFIG_SYS_SDRAM_END - (1 << 20))
+#define CONFIG_SYS_MONITOR_LEN (256 << 10)
+#define CONFIG_SYS_TEXT_BASE 0x33F00000 /* CONFIG_SYS_MONITOR_BASE */
+#define CONFIG_SYS_MALLOC_LEN (384 << 10)
+#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SRAM_END - \
+ GENERATED_GBL_DATA_SIZE)
+#define CONFIG_SYS_ALT_MEMTEST
+#define CONFIG_SYS_MEMTEST_START CONFIG_SYS_SDRAM_BASE
+#define CONFIG_SYS_MEMTEST_END CONFIG_SYS_MONITOR_BASE
+
+/*
+ * NAND Flash
+ */
+#ifdef CONFIG_CMD_NAND
+
+#define CONFIG_NAND_S3C24XX
+#define CONFIG_S3C24XX_NAND_HWECC
+#define CONFIG_SYS_NAND_BASE 0x4E000010
+#define CONFIG_SYS_MAX_NAND_DEVICE 1
+
+/* SPL NAND Driver */
+#define CONFIG_SYS_NAND_PAGE_SIZE (2 << 10)
+#define CONFIG_SYS_NAND_BLOCK_SIZE (128 << 10)
+#define CONFIG_SYS_NAND_PAGE_COUNT (CONFIG_SYS_NAND_BLOCK_SIZE / \
+ CONFIG_SYS_NAND_PAGE_SIZE)
+#define CONFIG_SYS_NAND_OOBSIZE 64
+#define CONFIG_SYS_NAND_ECCSIZE 512
+#define CONFIG_SYS_NAND_ECCBYTES 4
+#define CONFIG_SYS_NAND_ECCPOS {40, 41, 42, 43, 44, 45, 46, 47, \
+ 48, 49, 50, 51, 52, 53, 54, 55}
+#define CONFIG_SYS_NAND_BAD_BLOCK_POS 0
+#define CONFIG_SYS_NAND_HW_ECC_OOBFIRST
+#define CONFIG_SYS_NAND_5_ADDR_CYCLE
+#define CONFIG_SYS_NAND_U_BOOT_DST CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_NAND_U_BOOT_DST
+#define CONFIG_SYS_NAND_U_BOOT_OFFS CONFIG_SPL_MAX_SIZE
+#define CONFIG_SYS_NAND_U_BOOT_SIZE (CONFIG_SYS_MONITOR_LEN - \
+ CONFIG_SPL_MAX_SIZE)
+
+#endif
+
+/*
+ * Serial Driver
+ */
+#define CONFIG_S3C24X0_SERIAL
+#define CONFIG_SERIAL3
+#define CONFIG_BAUDRATE 115200
+#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
+
+/*
+ * Ethernet
+ */
+#ifdef CONFIG_CMD_NET
+#define CONFIG_SMC911X
+#define CONFIG_SMC911X_BASE 0x08000000
+#define CONFIG_SMC911X_16_BIT
+#define CONFIG_ETHADDR FE:11:22:33:44:55
+#define CONFIG_OVERWRITE_ETHADDR_ONCE
+#define CONFIG_IPADDR 192.168.0.10
+#define CONFIG_NETMASK 255.255.255.0
+#define CONFIG_SERVERIP 192.168.0.1
+#define CONFIG_GATEWAYIP 192.168.0.1
+#endif
+
+/*
+ * RTC
+ */
+#ifdef CONFIG_CMD_DATE
+#define CONFIG_RTC_S3C24X0
+#endif
+
+/*
+ * Environment
+ */
+#ifdef CONFIG_CMD_NAND
+#define CONFIG_ENV_IS_IN_NAND
+#define CONFIG_ENV_SIZE CONFIG_SYS_NAND_BLOCK_SIZE
+#define CONFIG_ENV_OFFSET CONFIG_SYS_MONITOR_LEN
+#define CONFIG_ENV_SIZE_REDUND CONFIG_ENV_SIZE
+#define CONFIG_ENV_OFFSET_REDUND (CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE)
+#else
+#define CONFIG_ENV_IS_NOWHERE
+#endif
+
+/*
+ * File System
+ */
+#ifdef CONFIG_CMD_NAND
+#define CONFIG_CMD_MTDPARTS
+#define CONFIG_MTD_DEVICE
+#define CONFIG_MTD_PARTITIONS
+#endif
+
+#endif /* __CONFIG_H */
--
1.7.9.5
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