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>
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)
+ * 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_MAIN_CLOCK 179712000
+#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
+
+/* CPU configuration */
+#define CONFIG_ARM920T
+#define CONFIG_AT91RM9200
+#define CONFIG_AT91RM9200EK
+#define CONFIG_CPUAT91
+#define USE_920T_MMU
+
+#define CONFIG_CMDLINE_TAG
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_INITRD_TAG
+
/*
- * peripheral clock
- * (AT91C_MASTER_CLOCK / 3)
+ * Memory Configuration
*/
-#define AT91C_MASTER_CLOCK 59904000
+#define CONFIG_NR_DRAM_BANKS 1
+#define CONFIG_SYS_SDRAM_BASE 0x20000000
+#define CONFIG_SYS_SDRAM_SIZE SZ_32M
-#define AT91_SLOW_CLOCK 32768 /* slow clock */
-
-#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 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__ */