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arm, at91: add spi dataflash support for the taurus board

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Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Bo Shen <voice.shen@atmel.com>
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
This commit is contained in:
Heiko Schocher 2014-10-31 08:30:56 +01:00 • committed by Tom Rini
parent f11dea4f3d
commit 50921cdc44
2 changed files with 28 additions and 0 deletions
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18
board/siemens/taurus/taurus.c
View file

@ -22,6 +22,8 @@
#include <asm/arch/gpio.h> #include <asm/arch/gpio.h>
#include <asm/arch/at91sam9_sdramc.h> #include <asm/arch/at91sam9_sdramc.h>
#include <atmel_mci.h> #include <atmel_mci.h>
#include <asm/arch/at91_spi.h>
#include <spi.h>
#include <net.h> #include <net.h>
#include <netdev.h> #include <netdev.h>
@ -127,6 +129,21 @@ int board_early_init_f(void)
return 0; return 0;
} }
int spi_cs_is_valid(unsigned int bus, unsigned int cs)
{
return bus == 0 && cs == 0;
}
void spi_cs_activate(struct spi_slave *slave)
{
at91_set_gpio_value(TAURUS_SPI_CS_PIN, 0);
}
void spi_cs_deactivate(struct spi_slave *slave)
{
at91_set_gpio_value(TAURUS_SPI_CS_PIN, 1);
}
int board_init(void) int board_init(void)
{ {
/* adress of boot parameters */ /* adress of boot parameters */
@ -139,6 +156,7 @@ int board_init(void)
#ifdef CONFIG_MACB #ifdef CONFIG_MACB
taurus_macb_hw_init(); taurus_macb_hw_init();
#endif #endif
at91_spi0_hw_init(TAURUS_SPI_MASK);
return 0; return 0;
} }

10
include/configs/taurus.h
View file

@ -127,6 +127,16 @@
#define CONFIG_USB_STORAGE #define CONFIG_USB_STORAGE
#endif #endif
/* SPI EEPROM */
#define CONFIG_SPI
#define CONFIG_CMD_SPI
#define CONFIG_CMD_SF
#define CONFIG_SPI_FLASH
#define CONFIG_ATMEL_SPI
#define CONFIG_SPI_FLASH_STMICRO
#define TAURUS_SPI_MASK (1 << 4)
#define TAURUS_SPI_CS_PIN AT91_PIN_PA3
/* load address */ /* load address */
#define CONFIG_SYS_LOAD_ADDR 0x22000000 #define CONFIG_SYS_LOAD_ADDR 0x22000000