at91rm9200ek: convert to at91

This patch removes some functionality from at91rm9200ek board but the
remaining functionality does now work with newer at91 code and
arm-relocation.

Currently missing features are:
 - dataflash booting (due to missing HW for testing)
 - MMC/SD-Card
 - first stage bootloader support is completely removed (not needed for
   NOR)

Cause this board was (some days ago) reference for all at91rm9200 based
boards this should be a good starting point to convert all remaining
at91rm9200 borads to at91 code. Aside from that this is a good base to
get some drivers between at91sam/at91rm/avr32 merged.

Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>

1 files changed, 74 insertions, 201 deletions

diff --git a/include/configs/at91rm9200ek.h b/include/configs/at91rm9200ek.h
index 145c3c3..6b2dd63 100644
--- a/include/configs/at91rm9200ek.h
+++ b/include/configs/at91rm9200ek.h
@@ -1,4 +1,8 @@
 /*
+ * Copyright (C) 2010 Andreas Bießmann <biessmann.devel@googlemail.com>
+ *
+ * based on previous work by
+ *
  * Ulf Samuelsson <ulf@atmel.com>
  * Rick Bronson <rick@efn.org>
  *
@@ -23,40 +27,52 @@
  * MA 02111-1307 USA
  */
 
-#ifndef __CONFIG_H
-#define __CONFIG_H
+#ifndef __AT91RM9200EK_CONFIG_H__
+#define __AT91RM9200EK_CONFIG_H__
 
-#define CONFIG_AT91_LEGACY
+#include <asm/sizes.h>
 
-/* ARM asynchronous clock */
-/*
- * from 18.432 MHz crystal
- * (18432000 / 4 * 39)
- */
-#define AT91C_MAIN_CLOCK	179712000
 /*
- * peripheral clock
- * (AT91C_MASTER_CLOCK / 3)
+ * AT91C_XTAL_CLOCK is the frequency of external xtal in hertz
+ * AT91C_MAIN_CLOCK is the frequency of PLLA output
+ * AT91C_MASTER_CLOCK is the peripherial clock
+ * CONFIG_SYS_HZ_CLOCK is the value for CCR in tc0 (divider 2 is implicitely
+ *  set in arch/arm/cpu/arm920t/at91/timer.c)
+ * CONFIG_SYS_HZ is the tick rate for timer tc0
  */
-#define AT91C_MASTER_CLOCK	59904000
+#define AT91C_XTAL_CLOCK		18432000
+#define AT91C_MAIN_CLOCK		((AT91C_XTAL_CLOCK / 4) * 39)
+#define AT91C_MASTER_CLOCK		(AT91C_MAIN_CLOCK / 3 )
+#define CONFIG_SYS_HZ_CLOCK		(AT91C_MASTER_CLOCK / 2)
+#define CONFIG_SYS_HZ			1000
 
-#define AT91_SLOW_CLOCK		32768	/* slow clock */
+/* CPU configuration */
+#define CONFIG_ARM920T
+#define CONFIG_AT91RM9200
+#define CONFIG_AT91RM9200EK
+#define CONFIG_CPUAT91
+#define USE_920T_MMU
 
-#define CONFIG_ARM920T		1	/* This is an ARM920T Core	*/
-#define CONFIG_AT91RM9200	1	/* It's an Atmel AT91RM9200 SoC	*/
-#define CONFIG_AT91RM9200EK	1	/* on an AT91RM9200EK Board	*/
-#undef  CONFIG_USE_IRQ			/* we don't need IRQ/FIQ stuff	*/
-#define USE_920T_MMU		1
+#define CONFIG_CMDLINE_TAG
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_INITRD_TAG
+
+/*
+ * Memory Configuration
+ */
+#define CONFIG_NR_DRAM_BANKS		1
+#define CONFIG_SYS_SDRAM_BASE		0x20000000
+#define CONFIG_SYS_SDRAM_SIZE		SZ_32M
 
-#define CONFIG_CMDLINE_TAG	1	/* enable passing of ATAGs	*/
-#define CONFIG_SETUP_MEMORY_TAGS 1
-#define CONFIG_INITRD_TAG	1
+#define CONFIG_SYS_MEMTEST_START	CONFIG_SYS_SDRAM_BASE
+#define CONFIG_SYS_MEMTEST_END		\
+		(CONFIG_SYS_MEMTEST_START + CONFIG_SYS_SDRAM_SIZE - SZ_256K)
 
 /*
  * LowLevel Init
  */
 #ifndef CONFIG_SKIP_LOWLEVEL_INIT
-#define CONFIG_SYS_USE_MAIN_OSCILLATOR		1
+#define CONFIG_SYS_USE_MAIN_OSCILLATOR
 /* flash */
 #define CONFIG_SYS_EBI_CFGR_VAL	0x00000000
 #define CONFIG_SYS_SMC_CSR0_VAL	0x00003284 /* 16bit, 2 TDF, 4 WS */
@@ -73,50 +89,26 @@
 #define CONFIG_SYS_PIOC_PDR_VAL	0xFFFF0000
 #define CONFIG_SYS_EBI_CSA_VAL	0x00000002 /* CS1=CONFIG_SYS_SDRAM */
 #define CONFIG_SYS_SDRC_CR_VAL	0x2188c155 /* set up the CONFIG_SYS_SDRAM */
-#define CONFIG_SYS_SDRAM	0x20000000 /* address of the CONFIG_SYS_SDRAM */
-#define CONFIG_SYS_SDRAM1	0x20000080 /* address of the CONFIG_SYS_SDRAM */
+#define CONFIG_SYS_SDRAM	CONFIG_SYS_SDRAM_BASE /* address of the SDRAM */
+#define CONFIG_SYS_SDRAM1	CONFIG_SYS_SDRAM_BASE /* address of the SDRAM */
 #define CONFIG_SYS_SDRAM_VAL	0x00000000 /* value written to CONFIG_SYS_SDRAM */
 #define CONFIG_SYS_SDRC_MR_VAL	0x00000002 /* Precharge All */
 #define CONFIG_SYS_SDRC_MR_VAL1	0x00000004 /* refresh */
 #define CONFIG_SYS_SDRC_MR_VAL2	0x00000003 /* Load Mode Register */
 #define CONFIG_SYS_SDRC_MR_VAL3	0x00000000 /* Normal Mode */
 #define CONFIG_SYS_SDRC_TR_VAL	0x000002E0 /* Write refresh rate */
-#else
-#define CONFIG_SKIP_RELOCATE_UBOOT
 #endif	/* CONFIG_SKIP_LOWLEVEL_INIT */
 
-/* hardcode so no __divsi3 : AT91C_MASTER_CLOCK / baudrate / 16 */
-#define CONFIG_SYS_AT91C_BRGR_DIVISOR	33
-
-/*
- * Memory Configuration
- */
-#define CONFIG_NR_DRAM_BANKS		1
-#define PHYS_SDRAM			0x20000000
-#define PHYS_SDRAM_SIZE			0x02000000	/* 32 megs */
-
-#define CONFIG_SYS_MEMTEST_START	PHYS_SDRAM
-#define CONFIG_SYS_MEMTEST_END		\
-		(CONFIG_SYS_MEMTEST_START + PHYS_SDRAM_SIZE - 262144)
-
 /*
  * Hardware drivers
  */
-
 /*
- * UART Configuration
- *
- * define one of these to choose the DBGU,
- * USART0 or USART1 as console
+ * Choose a USART for serial console
+ * CONFIG_DBGU is DBGU unit on J10
+ * CONFIG_USART1 is USART1 on J14
  */
 #define CONFIG_AT91RM9200_USART
 #define CONFIG_DBGU
-#undef CONFIG_USART0
-#undef CONFIG_USART1
-/* don't include RTS/CTS flow control support	*/
-#undef	CONFIG_HWFLOW
-/* disable modem initialization stuff */
-#undef	CONFIG_MODEM_SUPPORT
 
 #define CONFIG_SYS_BAUDRATE_TABLE	{115200 , 19200, 38400, 57600, 9600 }
 #define CONFIG_BAUDRATE			115200
@@ -130,156 +122,60 @@
 #define CONFIG_CMD_FAT
 #define CONFIG_CMD_MII
 #define CONFIG_CMD_PING
-
-#undef CONFIG_CMD_BDI
-#undef CONFIG_CMD_IMI
 #undef CONFIG_CMD_FPGA
-#undef CONFIG_CMD_MISC
-#undef CONFIG_CMD_LOADS
-
-#include <asm/arch/AT91RM9200.h>	/* needed for port definitions */
-/* Options for MMC/SD Card */
-#define CONFIG_DOS_PARTITION	1
-#undef CONFIG_MMC
-#define CONFIG_SYS_MMC_BASE		0xFFFB4000
-#define CONFIG_SYS_MMC_BLOCKSIZE	512
 
 /*
  * Network Driver Setting
  */
-#define CONFIG_NET_MULTI		1
-#ifdef CONFIG_NET_MULTI
-#define CONFIG_DRIVER_AT91EMAC		1
-#define CONFIG_SYS_RX_ETH_BUFFER	8
-#else
-#define CONFIG_DRIVER_ETHER		1
-#endif
-#define CONFIG_NET_RETRY_COUNT		20
-#define CONFIG_AT91C_USE_RMII
-
-/*
- * AC Characteristics
- * DLYBS = tCSS = 250ns min and DLYBCT = tCSH = 250ns
- */
-#define DATAFLASH_TCSS	(0xC << 16)
-#define DATAFLASH_TCHS	(0x1 << 24)
-
-#if defined(CONFIG_HAS_DATAFLASH)
-#define CONFIG_SYS_SPI_WRITE_TOUT		(5 * CONFIG_SYS_HZ)
-#define CONFIG_SYS_MAX_DATAFLASH_BANKS		2
-#define CONFIG_SYS_MAX_DATAFLASH_PAGES		16384
-/* Logical adress for CS0 */
-#define CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0	0xC0000000
-/* Logical adress for CS3 */
-#define CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS3	0xD0000000
-#define	CONFIG_SYS_SUPPORT_BLOCK_ERASE		1
-#define	CONFIG_SYS_DATAFLASH_MMC_PIO		AT91C_PIO_PB22
-#endif
+#define CONFIG_NET_MULTI
+#define CONFIG_DRIVER_AT91EMAC
+#define CONFIG_SYS_RX_ETH_BUFFER	16
+#define CONFIG_RMII
+#define CONFIG_MII
 
 /*
  * NOR Flash
  */
-#define CONFIG_SYS_FLASH_BASE			0x10000000
-#define PHYS_FLASH_SIZE				0x800000	/* 8MB */
-#define CONFIG_SYS_FLASH_CFI			1
-#define CONFIG_FLASH_CFI_DRIVER			1
-#define CONFIG_SYS_MAX_FLASH_BANKS		1
-#define CONFIG_SYS_MAX_FLASH_SECT		256
+#define CONFIG_FLASH_CFI_DRIVER
+#define CONFIG_SYS_FLASH_CFI
+#define CONFIG_SYS_FLASH_BASE		0x10000000
+#define PHYS_FLASH_1			CONFIG_SYS_FLASH_BASE
+#define PHYS_FLASH_SIZE			SZ_8M
+#define CONFIG_SYS_MAX_FLASH_BANKS	1
+#define CONFIG_SYS_MAX_FLASH_SECT	256
 #define CONFIG_SYS_FLASH_PROTECTION
 
 /*
  * Environment Settings
  */
-#ifdef CONFIG_ENV_IS_IN_DATAFLASH
-/*
- * Datasflash Environment Settings
- */
-#define CONFIG_ENV_OFFSET			0x4200
-#define CONFIG_ENV_ADDR			\
-		(CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0 + CONFIG_ENV_OFFSET)
-/* 8 * 1056 really , but start.s is not OK with this*/
-#define CONFIG_ENV_SIZE			0x2000
+#define CONFIG_ENV_IS_IN_FLASH
 
-#else
-/*
- * NOR Flash Environment Settings
- */
-#define CONFIG_ENV_IS_IN_FLASH		1
-
-#ifdef CONFIG_SKIP_LOWLEVEL_INIT
-/*
- * between boot.bin and u-boot.bin.gz
- */
-#define CONFIG_ENV_ADDR			(CONFIG_SYS_FLASH_BASE + 0xe000)
-#define CONFIG_ENV_SIZE			0x10000 /* sectors are 64K here */
-#else
 /*
  * after u-boot.bin
  */
 #define CONFIG_ENV_ADDR			\
 		(CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN)
-#define CONFIG_ENV_SIZE			0x10000 /* sectors are 64K here */
+#define CONFIG_ENV_SIZE			SZ_64K /* sectors are 64K here */
 /* The following #defines are needed to get flash environment right */
 #define CONFIG_SYS_MONITOR_BASE		CONFIG_SYS_FLASH_BASE
-#define CONFIG_SYS_MONITOR_LEN		\
-		(CONFIG_SYS_BOOT_SIZE + CONFIG_SYS_U_BOOT_SIZE)
-#endif	/* CONFIG_SKIP_LOWLEVEL_INIT */
-
-#endif	/* CONFIG_ENV_IS_IN_DATAFLASH */
+#define CONFIG_SYS_MONITOR_LEN		SZ_256K
 
 /*
  * Boot option
  */
 #define CONFIG_BOOTDELAY		3
 
-#ifdef CONFIG_SKIP_LOWLEVEL_INIT
-/* boot.bin, env, u-boot.bin.gz */
-#define CONFIG_SYS_BOOT_SIZE		0x6000 /* 24 KBytes */
-#define CONFIG_SYS_U_BOOT_BASE		(CONFIG_SYS_FLASH_BASE + 0x10000)
-#define CONFIG_SYS_U_BOOT_SIZE		0x10000 /* 64 KBytes */
-#else
-/* u-boot.bin */
-#define CONFIG_SYS_BOOT_SIZE		0x0 /* 0 KBytes */
-#define CONFIG_SYS_U_BOOT_BASE		CONFIG_SYS_FLASH_BASE
-#define CONFIG_SYS_U_BOOT_SIZE		0x40000 /* 128 KBytes */
-#endif /* CONFIG_SKIP_LOWLEVEL_INIT */
-
-#define CONFIG_SYS_LOAD_ADDR		0x21000000 /* default load address */
-#define CONFIG_ENV_OVERWRITE	1
-
-/*
- * USB Config
- */
-#define CONFIG_CMD_USB
-#define CONFIG_USB_OHCI_NEW	1
-#define CONFIG_USB_KEYBOARD	1
-#define CONFIG_USB_STORAGE	1
-#define CONFIG_DOS_PARTITION	1
-
-#undef CONFIG_SYS_USB_OHCI_BOARD_INIT
-#define CONFIG_SYS_USB_OHCI_CPU_INIT		1
-#define CONFIG_SYS_USB_OHCI_REGS_BASE		AT91_USB_HOST_BASE
-#define CONFIG_SYS_USB_OHCI_SLOT_NAME		"at91rm9200"
-#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS	15
-
-/*
- * I2C
- */
-#define CONFIG_HARD_I2C
-
-#ifdef CONFIG_HARD_I2C
-#define CONFIG_CMD_I2C
-#define CONFIG_SYS_I2C_SPEED		0	/* not used */
-#define CONFIG_SYS_I2C_SLAVE		0	/* not used */
-#endif
+/* default load address */
+#define CONFIG_SYS_LOAD_ADDR		CONFIG_SYS_SDRAM_BASE + SZ_16M
+#define CONFIG_ENV_OVERWRITE
 
 /*
  * Shell Settings
  */
-#define CONFIG_CMDLINE_EDITING		1
-#define CONFIG_SYS_LONGHELP		1
-#define CONFIG_AUTO_COMPLETE		1
-#define CONFIG_SYS_HUSH_PARSER		1
+#define CONFIG_CMDLINE_EDITING
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_AUTO_COMPLETE
+#define CONFIG_SYS_HUSH_PARSER
 #define CONFIG_SYS_PROMPT		"U-Boot> "
 #define CONFIG_SYS_PROMPT_HUSH_PS2	"> "
 #define CONFIG_SYS_CBSIZE		256	/* Console I/O Buffer Size */
@@ -288,41 +184,18 @@
 #define CONFIG_SYS_PBSIZE		\
 		(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
 
-#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 CONFIG_SYS_HZ 1000
-/*
- * AT91C_TC0_CMR is implicitly set to
- * AT91C_TC_TIMER_DIV1_CLOCK
- */
-#define CONFIG_SYS_HZ_CLOCK (AT91C_MASTER_CLOCK / 2)
-
 /*
  * Size of malloc() pool
  */
-#define CONFIG_SYS_MALLOC_LEN		ROUND(3 * CONFIG_ENV_SIZE + 128 * 1024 \
-					     , 0x1000)
+#define CONFIG_SYS_MALLOC_LEN		ROUND(3 * CONFIG_ENV_SIZE + SZ_128K, \
+					     SZ_4K)
 /* size in bytes reserved for initial data */
 #define CONFIG_SYS_GBL_DATA_SIZE	128
 
-#define CONFIG_STACKSIZE		(32 * 1024)	/* regular stack */
-#define CONFIG_STACKSIZE_IRQ		(4 * 1024) /* Unsure if to big or to small*/
-#define CONFIG_STACKSIZE_FIQ		(4 * 1024) /* Unsure if to big or to small*/
-#endif
+#define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_SDRAM_BASE + SZ_4K \
+					- CONFIG_SYS_GBL_DATA_SIZE)
+
+#define CONFIG_STACKSIZE		SZ_32K	/* regular stack */
+#define CONFIG_STACKSIZE_IRQ		SZ_4K	/* Unsure if to big or to small*/
+#define CONFIG_STACKSIZE_FIQ		SZ_4K	/* Unsure if to big or to small*/
+#endif /* __AT91RM9200EK_CONFIG_H__ */