* Patch by Gary Jennejohn, 01 Oct 2004:

  - add support for CMC PU2 board
  - add support for I2C on at91rm9200

* Patch by Gary Jennejohn, 28 Sep 2004:
  fix baudrate handling on at91rm9200

1 files changed, 225 insertions, 0 deletions

diff --git a/include/configs/cmc_pu2.h b/include/configs/cmc_pu2.h
new file mode 100644
index 0000000..03f5dde
--- /dev/null
+++ b/include/configs/cmc_pu2.h
@@ -0,0 +1,225 @@
+/*
+ * Rick Bronson <rick@efn.org>
+ *
+ * Configuation settings for the AT91RM9200DK 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
+
+/*
+ * If we are developing, we might want to start armboot from ram
+ * so we MUST NOT initialize critical regs like mem-timing ...
+ */
+#define CONFIG_INIT_CRITICAL		/* undef for developing */
+
+/* ARM asynchronous clock */
+#define AT91C_MAIN_CLOCK	179712000	/* from 18.432 MHz crystal (18432000 / 4 * 39) */
+#define AT91C_MASTER_CLOCK	59904000	/* peripheral clock (AT91C_MASTER_CLOCK / 3) */
+/* #define AT91C_MASTER_CLOCK	44928000 */	/* peripheral clock (AT91C_MASTER_CLOCK / 4) */
+
+#define AT91_SLOW_CLOCK		32768	/* slow clock */
+
+#define CONFIG_AT91RM9200DK	1	/* on an AT91RM9200DK Board	 */
+#define CONFIG_CMC_PU2	1		/* on an CMC_PU2 Board	 */
+#undef CONFIG_USE_IRQ			/* we don't need IRQ/FIQ stuff */
+#define CONFIG_CMDLINE_TAG	1	/* enable passing of ATAGs	*/
+#define CONFIG_SETUP_MEMORY_TAGS 1
+#define CONFIG_INITRD_TAG	1
+
+/* define this to include the functionality of boot.bin in u-boot */
+#undef CONFIG_BOOTBINFUNC
+
+/*
+ * Size of malloc() pool
+ */
+#define CFG_MALLOC_LEN	(CFG_ENV_SIZE + 128*1024)
+#define CFG_GBL_DATA_SIZE	128	/* size in bytes reserved for initial data */
+
+#define CONFIG_BAUDRATE 9600
+
+#define CFG_AT91C_BRGR_DIVISOR	390	/* hardcode so no __divsi3 : AT91C_MASTER_CLOCK /(baudrate * 16) */
+
+/*
+ * Hardware drivers
+ */
+
+/* define one of these to choose the DBGU, USART0  or USART1 as console */
+#undef CONFIG_DBGU
+#undef CONFIG_USART0
+#define CONFIG_USART1
+
+#undef	CONFIG_HWFLOW			/* don't include RTS/CTS flow control support	*/
+
+#undef	CONFIG_MODEM_SUPPORT		/* disable modem initialization stuff */
+
+#define CONFIG_HARD_I2C
+
+#ifdef CONFIG_HARD_I2C
+#define CFG_I2C_SPEED 0 /* not used */
+#define CFG_I2C_SLAVE 0 /* not used */
+#define CONFIG_RTC_RS5C372A	/* RICOH I2C RTC */
+#define CFG_I2C_RTC_ADDR 0x32
+#define CFG_I2C_EEPROM_ADDR 0x50
+#define CFG_I2C_EEPROM_ADDR_LEN 1
+#define CFG_I2C_EEPROM_ADDR_OVERFLOW
+#endif
+
+#define CONFIG_BOOTDELAY      3
+/* #define CONFIG_ENV_OVERWRITE	1 */
+
+#ifdef CONFIG_HARD_I2C
+#define CONFIG_COMMANDS		\
+		       ((CONFIG_CMD_DFL | \
+			CFG_CMD_I2C | \
+			CFG_CMD_EEPROM | \
+			CFG_CMD_DHCP ) & \
+		      ~(CFG_CMD_BDI | \
+			CFG_CMD_IMI | \
+			CFG_CMD_AUTOSCRIPT | \
+			CFG_CMD_FPGA | \
+			CFG_CMD_MISC | \
+			CFG_CMD_LOADS ))
+#else
+#define CONFIG_COMMANDS		\
+		       ((CONFIG_CMD_DFL | \
+			CFG_CMD_DHCP ) & \
+		      ~(CFG_CMD_BDI | \
+			CFG_CMD_IMI | \
+			CFG_CMD_AUTOSCRIPT | \
+			CFG_CMD_FPGA | \
+			CFG_CMD_MISC | \
+			CFG_CMD_LOADS ))
+#endif
+
+/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
+#include <cmd_confdefs.h>
+
+#define CFG_MAX_NAND_DEVICE	1	/* Max number of NAND devices		*/
+#define SECTORSIZE 512
+
+#define ADDR_COLUMN 1
+#define ADDR_PAGE 2
+#define ADDR_COLUMN_PAGE 3
+
+#define NAND_ChipID_UNKNOWN	0x00
+#define NAND_MAX_FLOORS 1
+#define NAND_MAX_CHIPS 1
+
+#define AT91_SMART_MEDIA_ALE (1 << 22)	/* our ALE is AD22 */
+#define AT91_SMART_MEDIA_CLE (1 << 21)	/* our CLE is AD21 */
+
+#define NAND_DISABLE_CE(nand) do { *AT91C_PIOC_SODR = AT91C_PIO_PC0;} while(0)
+#define NAND_ENABLE_CE(nand) do { *AT91C_PIOC_CODR = AT91C_PIO_PC0;} while(0)
+
+#define NAND_WAIT_READY(nand) while (!(*AT91C_PIOC_PDSR & AT91C_PIO_PC2))
+
+#define WRITE_NAND_COMMAND(d, adr) do{ *(volatile __u8 *)((unsigned long)adr | AT91_SMART_MEDIA_CLE) = (__u8)(d); } while(0)
+#define WRITE_NAND_ADDRESS(d, adr) do{ *(volatile __u8 *)((unsigned long)adr | AT91_SMART_MEDIA_ALE) = (__u8)(d); } while(0)
+#define WRITE_NAND(d, adr) do{ *(volatile __u8 *)((unsigned long)adr) = (__u8)d; } while(0)
+#define READ_NAND(adr) ((volatile unsigned char)(*(volatile __u8 *)(unsigned long)adr))
+/* the following are NOP's in our implementation */
+#define NAND_CTL_CLRALE(nandptr)
+#define NAND_CTL_SETALE(nandptr)
+#define NAND_CTL_CLRCLE(nandptr)
+#define NAND_CTL_SETCLE(nandptr)
+
+#define CONFIG_NR_DRAM_BANKS 1
+#define PHYS_SDRAM 0x20000000
+#define PHYS_SDRAM_SIZE 0x2000000  /* 32 megs */
+
+#define CFG_MEMTEST_START		PHYS_SDRAM
+#define CFG_MEMTEST_END			CFG_MEMTEST_START + PHYS_SDRAM_SIZE - 262144
+
+#define CONFIG_DRIVER_ETHER
+#define CONFIG_NET_RETRY_COUNT		20
+#define CONFIG_AT91C_USE_RMII
+
+#define CONFIG_HAS_DATAFLASH		1
+#define CFG_SPI_WRITE_TOUT		(5*CFG_HZ)
+#define CFG_MAX_DATAFLASH_BANKS 	2
+#define CFG_MAX_DATAFLASH_PAGES 	16384
+#define CFG_DATAFLASH_LOGIC_ADDR_CS0	0xC0000000	/* Logical adress for CS0 */
+#define CFG_DATAFLASH_LOGIC_ADDR_CS3	0xD0000000	/* Logical adress for CS3 */
+
+#define PHYS_FLASH_1			0x10000000
+#define PHYS_FLASH_SIZE			0x200000  /* 2 megs main flash */
+#define CFG_FLASH_BASE			PHYS_FLASH_1
+#define CFG_MAX_FLASH_BANKS		1
+#define CFG_MAX_FLASH_SECT		256
+#define CFG_FLASH_ERASE_TOUT		(2*CFG_HZ) /* Timeout for Flash Erase */
+#define CFG_FLASH_WRITE_TOUT		(2*CFG_HZ) /* Timeout for Flash Write */
+
+#undef	CFG_ENV_IS_IN_DATAFLASH
+
+#ifdef CFG_ENV_IS_IN_DATAFLASH
+#define CFG_ENV_OFFSET			0x20000
+#define CFG_ENV_ADDR			(CFG_DATAFLASH_LOGIC_ADDR_CS0 + CFG_ENV_OFFSET)
+#define CFG_ENV_SIZE			0x2000  /* 0x8000 */
+#else
+#define CFG_ENV_IS_IN_FLASH		1
+#define CFG_ENV_ADDR			(PHYS_FLASH_1 + 0xe000)  /* 0x10000 */
+#define CFG_ENV_SIZE			0x2000  /* 0x8000 */
+#endif
+
+
+#define CFG_LOAD_ADDR		0x21000000  /* default load address */
+
+#define CFG_BOOT_SIZE		0x6000 /* 24 KBytes */
+#define CFG_U_BOOT_BASE		(PHYS_FLASH_1 + 0x10000)
+#define CFG_U_BOOT_SIZE		0x10000 /* 64 KBytes */
+
+#define CFG_BAUDRATE_TABLE	{115200 , 19200, 38400, 57600, 9600 }
+
+#define CFG_PROMPT		"U-Boot> "	/* Monitor Command Prompt */
+#define CFG_CBSIZE		256		/* Console I/O Buffer Size */
+#define CFG_MAXARGS		16		/* max number of command args */
+#define CFG_PBSIZE		(CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
+
+#ifndef __ASSEMBLY__
+/*-----------------------------------------------------------------------
+ * Board specific extension for bd_info
+ *
+ * This structure is embedded in the global bd_info (bd_t) structure
+ * and can be used by the board specific code (eg board/...)
+ */
+
+struct bd_info_ext {
+	/* helper variable for board environment handling
+	 *
+	 * env_crc_valid == 0    =>   uninitialised
+	 * env_crc_valid  > 0    =>   environment crc in flash is valid
+	 * env_crc_valid  < 0    =>   environment crc in flash is invalid
+	 */
+	int env_crc_valid;
+};
+#endif
+
+#define CFG_HZ AT91C_MASTER_CLOCK/2	/* AT91C_TC0_CMR is implicitly set to */
+					/* AT91C_TC_TIMER_DIV1_CLOCK */
+
+#define CONFIG_STACKSIZE	(32*1024)	/* regular stack */
+
+#ifdef CONFIG_USE_IRQ
+#error CONFIG_USE_IRQ not supported
+#endif
+
+#endif