* Code cleanup

* Patch by Sascha Hauer, 28 Jun:
  - add generic support for Motorola i.MX architecture
  - add support for mx1ads, mx1fs2 and scb9328 boards

* Patches by Marc Leeman, 23 Jul 2004:
  - Add define for the PCI/Memory Buffer Configuration Register
  - corrected comments in cpu/mpc824x/cpu_init.c

* Add support for multiple serial interfaces
  (for example to allow modem dial-in / dial-out)

1 files changed, 291 insertions, 0 deletions

diff --git a/include/configs/mx1fs2.h b/include/configs/mx1fs2.h
new file mode 100644
index 00000000000..61a3b29612e
--- /dev/null
+++ b/include/configs/mx1fs2.h
@@ -0,0 +1,291 @@
+/*
+ * Copyright (C) 2004 Sascha Hauer, Pengutronix
+ *
+ * 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_ARM920T	   1	 /* this is an ARM920T CPU     */
+#define CONFIG_IMX	   1	 /* in a Motorola MC9328MXL Chip */
+#define CONFIG_MX1FS2	   1	 /* on a mx1fs2 board */
+#undef	CONFIG_USE_IRQ		 /* don't need use IRQ/FIQ    */
+
+/*
+ * Select serial console configuration
+ */
+#undef	_CONFIG_UART1 /* internal uart 1 */
+#define _CONFIG_UART2 /* internal uart 2 */
+#undef	_CONFIG_UART3 /* internal uart 3 */
+#undef	_CONFIG_UART4 /* internal uart 4 */
+#undef	CONFIG_SILENT_CONSOLE  /* use this to disable output */
+
+/*
+ * Definition of u-boot build in commands. Check out CONFIG_CMD_DFL if
+ * neccessary in include/cmd_confdefs.h file. (Un)comment for getting
+ * functionality or size of u-boot code.
+ */
+#define CONFIG_COMMANDS		(CONFIG_CMD_DFL		 \
+				& ~CFG_CMD_LOADS	 \
+				& ~CFG_CMD_CONSOLE	 \
+				& ~CFG_CMD_AUTOSCRIPT	 \
+				& ~CFG_CMD_NET		 \
+				& ~CFG_CMD_PING		 \
+				& ~CFG_CMD_DHCP		 \
+				| CFG_CMD_JFFS2		 \
+				)
+
+#include <cmd_confdefs.h>
+
+/*
+ * Boot options. Setting delay to -1 stops autostart count down.
+ */
+#define CONFIG_BOOTDELAY   10
+#define CONFIG_BOOTARGS	   "root=/dev/mtdblock4 console=ttySMX0,115200n8 rootfstype=jffs2"
+#define CONFIG_BOOTCOMMAND "bootm 10080000"
+#define CONFIG_SHOW_BOOT_PROGRESS
+
+/*
+ * General options for u-boot. Modify to save memory foot print
+ */
+#define CFG_LONGHELP				      /* undef saves memory  */
+#define CFG_PROMPT		"mx1fs2> "	      /* prompt string	     */
+#define CFG_CBSIZE		256		      /* console I/O buffer  */
+#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* print buffer size   */
+#define CFG_MAXARGS		16		      /* max command args    */
+#define CFG_BARGSIZE		CFG_CBSIZE	      /* boot args buf size  */
+
+#define CFG_MEMTEST_START	0x08100000	      /* memtest test area   */
+#define CFG_MEMTEST_END		0x08F00000
+
+#undef	CFG_CLKS_IN_HZ			     /* use HZ for freq. display     */
+
+#define CFG_HZ			3686400	     /* incrementer freq: 3.6864 MHz */
+#define CFG_CPUSPEED		0x141	     /* core clock - register value  */
+
+#define CFG_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }
+#define CONFIG_BAUDRATE 115200
+/*
+ * Definitions related to passing arguments to kernel.
+ */
+#define CONFIG_CMDLINE_TAG	     1	 /* send commandline to Kernel	     */
+#define CONFIG_SETUP_MEMORY_TAGS     1	 /* send memory definition to kernel */
+#define	 CONFIG_INITRD_TAG	     1	   /* send initrd params	*/
+#undef	CONFIG_VFD			 /* do not send framebuffer setup    */
+
+#define CFG_JFFS_CUSTOM_PART
+/*
+ * Malloc pool need to host env + 128 Kb reserve for other allocations.
+ */
+#define CFG_MALLOC_LEN	  (CFG_ENV_SIZE + (128<<10) )
+
+
+#define CFG_GBL_DATA_SIZE	128	/* size in bytes reserved for initial data */
+
+#define CONFIG_STACKSIZE	(120<<10)      /* stack size */
+
+#ifdef CONFIG_USE_IRQ
+#define CONFIG_STACKSIZE_IRQ	(4<<10)	       /* IRQ stack  */
+#define CONFIG_STACKSIZE_FIQ	(4<<10)	       /* FIQ stack  */
+#endif
+
+/* SDRAM Setup Values
+ * 0x910a8300 Precharge Command CAS 3
+ * 0x910a8200 Precharge Command CAS 2
+ *
+ * 0xa10a8300 AutoRefresh Command CAS 3
+ * 0xa10a8200 Set AutoRefresh Command CAS 2
+ */
+#define PRECHARGE_CMD 0x910a8300
+#define AUTOREFRESH_CMD 0xa10a8300
+
+#define CONFIG_INIT_CRITICAL
+
+#define BUS32BIT_VERSION
+/*
+ * SDRAM Memory Map
+ */
+#define CONFIG_NR_DRAM_BANKS  1			     /* we have 1 bank of SDRAM */
+#define MX1FS2_SDRAM_1	      0x08000000	     /* SDRAM bank #1		*/
+#ifdef BUS32BIT_VERSION
+#define MX1FS2_SDRAM_1_SIZE  (0x04000000 - 0x100000) /* 64 MB - 1M Framebuffer */
+#else
+#define MX1FS2_SDRAM_1_SIZE  (0x01FC0000 - 0x100000) /* 32 MB - 1M Framebuffer */
+#endif
+/*
+ * Flash Controller settings
+ */
+
+#define CFG_MAX_FLASH_BANKS	1	/* FLASH banks count (not chip count)*/
+#define CFG_MAX_FLASH_SECT	256	/* number of sector in FLASH bank    */
+
+#ifdef BUS32BIT_VERSION
+#define MX1FS2_FLASH_BUS_WIDTH	4	/* we use 32 bit FLASH memory...     */
+#define MX1FS2_FLASH_INTERLEAVE 2	/* ... made of 2 chips */
+#define MX1FS2_FLASH_BANK_SIZE	0x02000000  /* size of one flash bank*/
+#define MX1FS2_FLASH_SECT_SIZE	0x00020000  /* size of erase sector */
+#define MX1FS2_JFFS2_PART0_START 0x10200000
+#define MX1FS2_JFFS2_PART0_SIZE	 0x00500000
+#define MX1FS2_JFFS2_PART1_START 0x10700000
+#define MX1FS2_JFFS2_PART1_SIZE	 0x00900000
+#else
+#define MX1FS2_FLASH_BUS_WIDTH	2	/* we use 16 bit FLASH memory...     */
+#define MX1FS2_FLASH_INTERLEAVE 1	/* ... made of 1 chip */
+#define MX1FS2_FLASH_BANK_SIZE	0x01000000  /* size of one flash bank*/
+#define MX1FS2_FLASH_SECT_SIZE	0x00010000  /* size of erase sector */
+#endif
+#define MX1FS2_FLASH_BASE	0x10000000  /* location of flash memory */
+#define MX1FS2_FLASH_UNLOCK	   1	   /* perform hw unlock first */
+
+/* This should be defined if CFI FLASH device is present. Actually benefit
+   is not so clear to me. In other words we can provide more informations
+   to user, but this expects more complex flash handling we do not provide
+   now.*/
+#undef	CFG_FLASH_CFI
+
+#define CFG_FLASH_ERASE_TOUT	(2*CFG_HZ)    /* timeout for Erase operation */
+#define CFG_FLASH_WRITE_TOUT	(2*CFG_HZ)    /* timeout for Write operation */
+
+#define CFG_FLASH_BASE		MX1FS2_FLASH_BASE
+
+/*
+ * This is setting for JFFS2 support in u-boot.
+ * Right now there is no gain for user, but later on booting kernel might be
+ * possible. Consider using XIP kernel running from flash to save RAM
+ * footprint.
+ * NOTE: Enable CFG_CMD_JFFS2 for JFFS2 support.
+ */
+#define CFG_JFFS2_FIRST_BANK		0
+#define CFG_JFFS2_FIRST_SECTOR		5
+#define CFG_JFFS2_NUM_BANKS		1
+
+/*
+ * Environment setup. Definitions of monitor location and size with
+ * definition of environment setup ends up in 2 possibilities.
+ * 1. Embeded environment - in u-boot code is space for environment
+ * 2. Environment is read from predefined sector of flash
+ * Right now we support 2. possiblity, but expecting no env placed
+ * on mentioned address right now. This also needs to provide whole
+ * sector for it - for us 256Kb is really waste of memory. U-boot uses
+ * default env. and until kernel parameters could be sent to kernel
+ * env. has no sense to us.
+ */
+
+#define CFG_MONITOR_BASE	0x10000000
+#define CFG_MONITOR_LEN		0x20000		/* 128b ( 1 flash sector )   */
+#define CFG_ENV_IS_IN_FLASH	1
+#define CFG_ENV_ADDR		0x10020000	/* absolute address for now  */
+#define CFG_ENV_SIZE		0x20000
+
+#define	 CONFIG_ENV_OVERWRITE	1		/* env is not writable now   */
+
+/* Setup CS4 and CS5 */
+#define CFG_GIUS_A_VAL		0x0003fffe
+
+/*
+ * CSxU_VAL:
+ * 63| x	x x x | x x x x | x x  x    x | x x x x | x x x x | x x x x | x x x x | x x x x|32
+ *   |DTACK_SEL|0|BCD |	  BCS	| PSZ|PME|SYNC|	 DOL	| CNC|	  WSC	    | 0| WWS  |	  EDC  |
+ *
+ * CSxL_VAL:
+ * 31| x x x x | x x x x | x x x x | x x x x | x x x x |  x x x x | x x	 x x | x x  x	 x| 0
+ *   |	 OEA   |   OEN	 |   WEA   |   WEN   |	 CSA   |EBC| DSZ  | 0|SP|0|WP| 0 0|PA|CSEN|
+ */
+
+#define CFG_CS0U_VAL 0x00008C00
+#define CFG_CS0L_VAL 0x22222601
+#define CFG_CS1U_VAL 0x00008C00
+#define CFG_CS1L_VAL 0x22222301
+#define CFG_CS4U_VAL 0x00008C00
+#define CFG_CS4L_VAL 0x22222301
+#define CFG_CS5U_VAL 0x00008C00
+#define CFG_CS5L_VAL 0x22222301
+
+/* f_{dpll}=2*f{ref}*(MFI+MFN/(MFD+1))/(PD+1)
+   f_ref=16,777MHz
+
+   0x002a141f: 191,9944MHz
+   0x040b2007: 144MHz
+   0x042a141f: 96MHz
+   0x0811140d: 64MHz
+   0x040e200e: 150MHz
+   0x00321431: 200MHz
+
+   0x08001800: 64MHz mit 16er Quarz
+   0x04001800: 96MHz mit 16er Quarz
+   0x04002400: 144MHz mit 16er Quarz
+
+   31 |x x x x|x x x x|x x x x|x x x x|x x x x|x x x x|x x x x|x x x x| 0
+      |XXX|--PD---|-------MFD---------|XXX|--MFI--|-----MFN-----------|	    */
+
+#define CFG_MPCTL0_VAL		0x07E723AD
+#define CFG_MPCTL1_VAL		0x00000040
+#define CFG_PCDR_VAL		0x00010005
+#define CFG_GPCR_VAL		0x00000FFB
+
+#define USE_16M_OSZI /* If you have one, you want to use it
+			The internal 32kHz oszillator jitters */
+#ifdef USE_16M_OSZI
+
+#define CFG_SPCTL0_VAL		0x04001401
+#define CFG_SPCTL1_VAL		0x0C000040
+#define CFG_CSCR_VAL		0x07030003
+#define CONFIG_SYS_CLK_FREQ	16780000
+#define CONFIG_SYSPLL_CLK_FREQ	16000000
+
+#else
+
+#define CFG_SPCTL0_VAL		0x07E716D1
+#define CFG_CSCR_VAL		0x06000003
+#define CONFIG_SYS_CLK_FREQ	16780000
+#define CONFIG_SYSPLL_CLK_FREQ	16780000
+
+#endif
+
+/*
+ * Well this has to be defined, but on the other hand it is used differently
+ * one may expect. For instance loadb command do not cares :-)
+ * So advice is - do not relay on this...
+ */
+#define CFG_LOAD_ADDR		0x08400000
+
+#define CFG_FMCR_VAL		0x00000003 /* Reset Default */
+
+/* Bit[0:3] contain PERCLK1DIV for UART 1
+   0x000b00b ->b<- -> 192MHz/12=16MHz
+   0x000b00b ->8<- -> 144MHz/09=16MHz
+   0x000b00b ->3<- -> 64MHz/4=16MHz */
+
+#ifdef _CONFIG_UART1
+#define CONFIG_IMX_SERIAL1
+#elif defined _CONFIG_UART2
+#define CONFIG_IMX_SERIAL2
+#elif defined _CONFIG_UART3 | defined _CONFIG_UART4
+#define CONFIG_IMX_SERIAL_NONE
+#define CFG_NS16550
+#define CFG_NS16550_SERIAL
+#define CFG_NS16550_CLK		3686400
+#define CFG_NS16550_REG_SIZE	1
+#define CONFIG_CONS_INDEX	1
+#ifdef _CONFIG_UART3
+#define CFG_NS16550_COM1	0x15000000
+#elif defined _CONFIG_UART4
+#define CFG_NS16550_COM1	0x16000000
+#endif
+#endif
+
+#endif	/* __CONFIG_H */