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atmel: at91sam9x5: add spi flash boot support 

Add at91sam9x5 series spi flash boot support

Using at91sam9x5ek_spiflash to configure, then it can boot from at25df321
serial flash

SPI mater work in 30Mhz speed, while not 1Mhz speed. This will base on
atmel_spi patch, or else, it will occur receive overrun

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
This commit is contained in:
Bo Shen 2012-08-19 20:32:24 +00:00 committed by Albert ARIBAUD
parent 3083efe212
commit 1d7442e653
2 changed files with 17 additions and 4 deletions
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1
boards.cfg
View File

@ -96,6 +96,7 @@ at91sam9m10g45ek_nandflash arm arm926ejs at91sam9m10g45ek atmel
at91sam9rlek_dataflash arm arm926ejs at91sam9rlek atmel at91 at91sam9rlek:AT91SAM9RL,SYS_USE_DATAFLASH
at91sam9rlek_nandflash arm arm926ejs at91sam9rlek atmel at91 at91sam9rlek:AT91SAM9RL,SYS_USE_NANDFLASH
at91sam9x5ek_nandflash arm arm926ejs at91sam9x5ek atmel at91 at91sam9x5ek:AT91SAM9X5,SYS_USE_NANDFLASH
at91sam9x5ek_spiflash arm arm926ejs at91sam9x5ek atmel at91 at91sam9x5ek:AT91SAM9X5,SYS_USE_SPIFLASH
at91sam9xeek_dataflash_cs0 arm arm926ejs at91sam9260ek atmel at91 at91sam9260ek:AT91SAM9XE,SYS_USE_DATAFLASH_CS0
at91sam9xeek_dataflash_cs1 arm arm926ejs at91sam9260ek atmel at91 at91sam9260ek:AT91SAM9XE,SYS_USE_DATAFLASH_CS1
at91sam9xeek_nandflash arm arm926ejs at91sam9260ek atmel at91 at91sam9260ek:AT91SAM9XE,SYS_USE_NANDFLASH

20
include/configs/at91sam9x5ek.h
View File

@ -86,6 +86,7 @@
#define CONFIG_CMD_PING
#define CONFIG_CMD_DHCP
#define CONFIG_CMD_NAND
#define CONFIG_CMD_SF
/* SDRAM */
#define CONFIG_NR_DRAM_BANKS 1
@ -96,12 +97,11 @@
(CONFIG_SYS_SDRAM_BASE + 4 * 1024 - GENERATED_GBL_DATA_SIZE)
/* DataFlash */
#ifdef CONFIG_ATMEL_SPI
#define CONFIG_CMD_SF
#define CONFIG_CMD_SPI
#ifdef CONFIG_CMD_SF
#define CONFIG_ATMEL_SPI
#define CONFIG_SPI_FLASH
#define CONFIG_SPI_FLASH_ATMEL
#define CONFIG_SYS_MAX_DATAFLASH_BANKS
#define CONFIG_SF_DEFAULT_SPEED 30000000
#endif
/* no NOR flash */
@ -149,6 +149,18 @@
#define CONFIG_BOOTCOMMAND "nand read " \
"0x22000000 0x200000 0x300000; " \
"bootm 0x22000000"
#else
#ifdef CONFIG_SYS_USE_SPIFLASH
/* bootstrap + u-boot + env + linux in spi flash */
#define CONFIG_ENV_IS_IN_SPI_FLASH
#define CONFIG_ENV_OFFSET 0x5000
#define CONFIG_ENV_SIZE 0x3000
#define CONFIG_ENV_SECT_SIZE 0x1000
#define CONFIG_ENV_SPI_MAX_HZ 30000000
#define CONFIG_BOOTCOMMAND "sf probe 0; " \
"sf read 0x22000000 0x100000 0x300000; " \
"bootm 0x22000000"
#endif
#endif
#define CONFIG_BOOTARGS "mem=128M console=ttyS0,115200 " \