[U-Boot] patch to make u-boot work on jornada 720 flashrom - feedback wanted

Kristoffer Ericson kristoffer.ericson at gmail.com
Mon Jun 8 21:15:38 CEST 2009


Greetings,

I currently have blob working nicely on the flashboard in question, Ive been
trying to create a patchset to get it working on u-boot. 
I basicly want feedback if this is enough or what else is needed. The code
is heavily copied from assabet since they are similiar.

diff --git a/board/jornada/Makefile b/board/jornada/Makefile
new file mode 100644
index 0000000..1b4e192
--- /dev/null
+++ b/board/jornada/Makefile
@@ -0,0 +1,53 @@
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+#
+# 2004 (c) MontaVista Software, Inc.
+#
+# 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	:= jornada.o
+SOBJS	:= setup.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/jornada/config.mk b/board/jornada/config.mk
new file mode 100644
index 0000000..c9d9109
--- /dev/null
+++ b/board/jornada/config.mk
@@ -0,0 +1,7 @@
+#
+# SA-1110 based HP Jornada board
+#
+# The Intel Jornada 1 bank of 32 MiB SDRAM
+#
+
+TEXT_BASE = 0xc1f00000
diff --git a/board/jornada/jornada.c b/board/jornada/jornada.c
new file mode 100644
index 0000000..9c761e1
--- /dev/null
+++ b/board/jornada/jornada.c
@@ -0,0 +1,66 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger at sysgo.de>
+ *
+ * 2004 (c) MontaVista Software, Inc.
+ *
+ * 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 <SA-1100.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* ------------------------------------------------------------------------- */
+
+static inline u8
+readb(volatile u8 * p)
+{
+	return *p;
+}
+
+static inline void
+writeb(u8 v, volatile u8 * p)
+{
+	*p = v;
+}
+
+static void jornada_init(void)
+{
+}
+
+int board_init(void)
+{
+	gd->bd->bi_arch_number = MACH_TYPE_JORNADA;
+	gd->bd->bi_boot_params = 0xc0000100;
+
+	jornada_init();
+
+	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);
+}
diff --git a/board/jornada/setup.S b/board/jornada/setup.S
new file mode 100644
index 0000000..598c83b
--- /dev/null
+++ b/board/jornada/setup.S
@@ -0,0 +1,137 @@
+/*
+ * 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)
+ * 2004 (c) MontaVista Software, Inc.
+ *
+ * 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"
+
+
+/*-----------------------------------------------------------------------
+ * Board defines:
+ */
+
+#define MDCNFG		0x00
+#define MDCAS00		0x04
+#define MDCAS01		0x08
+#define MDCAS02		0x0C
+#define MSC0		0x10
+#define MSC1		0x14
+#define MECR		0x18
+#define MDREFR		0x1C
+#define MDCAS20		0x20
+#define MDCAS21		0x24
+#define MDCAS22		0x28
+#define MSC2		0x2C
+#define SMCNFG		0x30
+
+#define JORNADA_BCR		(0x12000000)
+#define JORNADA_BCR_DB1110	(0x00a07490 | (0<<16) | (0<<17))
+#define JORNADA_SCR_nNEPONSET	(1 << 9)
+#define JORNADA_LEDS		(0x10000010)
+
+
+/*-----------------------------------------------------------------------
+ * Setup parameters for the board:
+ */
+
+
+MEM_BASE:	.long	0xa0000000
+MEM_START:	.long	0xc0000000
+
+/* calculated from old blob bootloader */
+mdcnfg:		.long	0x00007265
+mdcas00:	.long	0x5555557f
+mdcas01:	.long	0x55555555
+mdcas02:	.long	0x55555555
+msc0:		.long	0xfff04f78
+msc1:		.long	0xfff8fff0
+mecr:		.long	0x98c698c6
+mdrefr:		.long	0x04340327
+mdcas20:	.long	0xd1284142
+mdcas21:	.long	0x72249529
+mdcas22:	.long	0x78414351
+msc2:		.long	0x201d2959
+smcnfg:		.long	0x00000000
+
+BCR:		.long	ASSABET_BCR
+BCR_DB1110:	.long	ASSABET_BCR_DB1110
+LEDS:		.long	NEPONSET_LEDS
+
+
+	.globl lowlevel_init
+lowlevel_init:
+
+	/* Setting up the memory and stuff */
+
+	ldr	r0, MEM_BASE
+	ldr	r1, mdcas00
+	str	r1, [r0, #MDCAS00]
+	ldr	r1, mdcas01
+	str	r1, [r0, #MDCAS01]
+	ldr	r1, mdcas02
+	str	r1, [r0, #MDCAS02]
+	ldr	r1, mdcas20
+	str	r1, [r0, #MDCAS20]
+	ldr	r1, mdcas21
+	str	r1, [r0, #MDCAS21]
+	ldr	r1, mdcas22
+	str	r1, [r0, #MDCAS22]
+	ldr	r1, mdrefr
+	str	r1, [r0, #MDREFR]
+	ldr	r1, mecr
+	str	r1, [r0, #MECR]
+	ldr	r1, msc0
+	str	r1, [r0, #MSC0]
+	ldr	r1, msc1
+	str	r1, [r0, #MSC1]
+	ldr	r1, msc2
+	str	r1, [r0, #MSC2]
+	ldr	r1, smcnfg
+	str	r1, [r0, #SMCNFG]
+
+	ldr	r1, mdcnfg
+	str	r1, [r0, #MDCNFG]
+
+	/* Load something to activate bank */
+	ldr	r2, MEM_START
+.rept	8
+	ldr	r3, [r2]
+.endr
+
+	/* Enable SDRAM */
+	orr	r1, r1, #0x00000001
+	str	r1, [r0, #MDCNFG]
+
+	ldr	r1, BCR
+	ldr	r2, BCR_DB1110
+	str	r2, [r1]
+
+	ldr	r1, LEDS
+	mov	r0, #0x3
+	str	r0, [r1]
+
+	/* All done... */
+	mov	pc, lr
diff --git a/board/jornada/u-boot.lds b/board/jornada/u-boot.lds
new file mode 100644
index 0000000..bd97436
--- /dev/null
+++ b/board/jornada/u-boot.lds
@@ -0,0 +1,58 @@
+/*
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+ * 2004 (c) MontaVista Software, Inc.
+ *
+ * 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
+ */
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+	. = 0x00000000;
+
+	. = ALIGN(4);
+	.text      :
+	{
+		cpu/sa1100/start.o	(.text)
+		*(.text)
+	}
+
+	. = ALIGN(4);
+	.rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
+
+	. = ALIGN(4);
+	.data : { *(.data) }
+
+	. = ALIGN(4);
+	.got : { *(.got) }
+
+
+	. = .;
+	__u_boot_cmd_start = .;
+	.u_boot_cmd : { *(.u_boot_cmd) }
+	__u_boot_cmd_end = .;
+
+	. = ALIGN(4);
+	__bss_start = .;
+	.bss (NOLOAD) : { *(.bss) . = ALIGN(4); }
+	_end = .;
+}
diff --git a/include/configs/jornada.h b/include/configs/jornada.h
new file mode 100644
index 0000000..0a0766d
--- /dev/null
+++ b/include/configs/jornada.h
@@ -0,0 +1,166 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger at sysgo.de>
+ *
+ * 2004 (c) MontaVista Software, Inc.
+ *
+ * Configuation settings for the Intel Assabet 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
+
+/*
+ * High Level Configuration Options
+ * (easy to change)
+ */
+#define CONFIG_SA1110		1	/* This is an SA1100 CPU */
+#define CONFIG_JORNADA700	1	/* on an HP Jornada 700  */
+
+#undef CONFIG_USE_IRQ
+/* we will never enable dcache, because we have to setup MMU first */
+#define CONFIG_SYS_NO_DCACHE
+
+#define CONFIG_CMDLINE_TAG	 1	/* enable passing of ATAGs      */
+#define CONFIG_SETUP_MEMORY_TAGS 1
+#define CONFIG_INITRD_TAG	 1
+
+/*
+ * Size of malloc() pool
+ */
+#define CONFIG_SYS_MALLOC_LEN          (CONFIG_ENV_SIZE + 128*1024)
+#define CONFIG_SYS_GBL_DATA_SIZE       128	/* size rsrvd for initial data */
+
+/*
+ * select serial console configuration
+ */
+#define CONFIG_SA1100_SERIAL
+#define CONFIG_SERIAL1          1	/* we use SERIAL 1 on HP Jornada */
+
+/* allow to overwrite serial and ethaddr */
+#define CONFIG_ENV_OVERWRITE
+
+#define CONFIG_BAUDRATE		59600
+
+/*
+ * Command line configuration.
+ */
+#include <config_cmd_default.h>
+
+#define CONFIG_CMD_DHCP
+
+
+/*
+ * BOOTP options
+ */
+#define CONFIG_BOOTP_SUBNETMASK
+#define CONFIG_BOOTP_GATEWAY
+#define CONFIG_BOOTP_HOSTNAME
+#define CONFIG_BOOTP_BOOTPATH
+
+
+#define CONFIG_BOOTDELAY	3
+#define CONFIG_BOOTARGS		"console=ttySA0,115200n8 root=/dev/nfs ip=bootp"
+#define CONFIG_BOOTCOMMAND	"bootp;tftp;bootm"
+#define CONFIG_SYS_AUTOLOAD            "n"	/* No autoload */
+
+#if defined(CONFIG_CMD_KGDB)
+#define CONFIG_KGDB_BAUDRATE	59600	/* speed to run kgdb serial port */
+#define CONFIG_KGDB_SER_INDEX	2	/* which serial port to use */
+#endif
+
+/*
+ * Miscellaneous configurable options
+ */
+#define CONFIG_SYS_LONGHELP		/* undef to save memory         */
+#define CONFIG_SYS_PROMPT		"HP Jornada # "	/* Monitor Command Prompt       */
+#define CONFIG_SYS_CBSIZE		256	/* Console I/O Buffer Size      */
+#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16)	/* Print Buffer Size */
+#define CONFIG_SYS_MAXARGS		16	/* max number of command args   */
+#define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE	/* Boot Argument Buffer Size    */
+
+#define CONFIG_SYS_MEMTEST_START	0xc0400000	/* memtest works on     */
+#define CONFIG_SYS_MEMTEST_END		0xc0800000	/* 4 ... 8 MB in DRAM   */
+
+#define CONFIG_SYS_LOAD_ADDR		0xc0000000	/* default load address */
+
+#define CONFIG_SYS_HZ			3686400	/* incrementer freq: 3.6864 MHz */
+#define CONFIG_SYS_CPUSPEED		0x0a	/* set core clock to 206MHz */
+
+						/* valid baudrates */
+#define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }
+
+/*-----------------------------------------------------------------------
+ * Stack sizes
+ *
+ * The stack sizes are set up in start.S using the settings below
+ */
+#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 SDRAM */
+#define PHYS_SDRAM_1		0xc0000000	/* SDRAM Bank #1 */
+#define PHYS_SDRAM_1_SIZE	0x02000000	/* 32 MB */
+
+#define PHYS_FLASH_1		0x00000000	/* Flash Bank #1 */
+#define PHYS_FLASH_SIZE		0x02000000	/* 32 MB */
+#define PHYS_FLASH_BANK_SIZE    0x01000000	/* 16 MB Banks */
+#define PHYS_FLASH_SECT_SIZE    0x00040000	/* 256 KB sectors (x2) */
+
+#define CONFIG_SYS_MONITOR_BASE        TEXT_BASE
+#define CONFIG_SYS_MONITOR_LEN         (256 * 1024)	/* Reserve 256 KB for Monitor */
+
+#if CONFIG_SYS_MONITOR_BASE < CONFIG_SYS_FLASH_BASE
+#define CONFIG_SYS_RAMSTART
+#endif
+
+/*-----------------------------------------------------------------------
+ * FLASH and environment organization
+ */
+
+#define CONFIG_SYS_FLASH_BASE		PHYS_FLASH_1
+#define CONFIG_SYS_FLASH_SIZE          PHYS_FLASH_SIZE
+#define CONFIG_SYS_FLASH_CFI           1	/* flash is CFI conformant      */
+#define CONFIG_FLASH_CFI_DRIVER    1	/* use common cfi driver        */
+#define CONFIG_SYS_FLASH_USE_BUFFER_WRITE 1	/* use buffered writes (20x faster) */
+#define CONFIG_SYS_MAX_FLASH_BANKS     1	/* max # of memory banks        */
+#define CONFIG_SYS_FLASH_INCREMENT     0	/* there is only one bank       */
+#define CONFIG_SYS_MAX_FLASH_SECT      128	/* max # of sectors on one chip */
+#undef CONFIG_SYS_FLASH_PROTECTION
+#define CONFIG_SYS_FLASH_BANKS_LIST    { CONFIG_SYS_FLASH_BASE }
+
+#define CONFIG_ENV_IS_IN_FLASH	1
+
+#if defined(CONFIG_ENV_IS_IN_FLASH)
+#define CONFIG_ENV_IN_OWN_SECTOR	1
+#define CONFIG_ENV_ADDR		(PHYS_FLASH_1 + PHYS_FLASH_SECT_SIZE)
+#define CONFIG_ENV_SIZE		PHYS_FLASH_SECT_SIZE
+#define CONFIG_ENV_SECT_SIZE	PHYS_FLASH_SECT_SIZE
+#endif
+
+#endif /* __CONFIG_H */


-- 
Kristoffer Ericson <kristoffer.ericson at gmail.com>


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