[U-Boot] [PATCH 6/6 v3] nios2: add spi flash support to nios2-generic board

[Scott McNutt <smcnutt@psyent.com>]

Thomas,

I applied this to:
    git://git.denx.de/u-boot-nios.git testing

after merging with Mike's 'sf' branch at:
    git://git.denx.de/u-boot-blackfin

so we can pickup:
     [PATCH 5/6 v3] spi_flash: support old STMicro parts with RES

I'll merge once Mike's changes are available upstream. In the
meantime, the nios testing branch has the entire patch series
available.

Regards,
--Scott

Thomas Chou wrote:
> This patch enables the altera_spi and spi_flash drivers for the
> nios2-generic board. It allows access to the EPCS/SPI flash on
> the Altera EP1C20 board.
> 
> Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
> ---
> v3: split patches for gpio and spi.
> v2: remove mmc_spi_init()
> 
>  board/altera/nios2-generic/custom_fpga.h |   10 ++++++++++
>  1 files changed, 10 insertions(+), 0 deletions(-)
> 
> diff --git a/board/altera/nios2-generic/custom_fpga.h b/board/altera/nios2-generic/custom_fpga.h
> index 761f605..a11add5 100644
> --- a/board/altera/nios2-generic/custom_fpga.h
> +++ b/board/altera/nios2-generic/custom_fpga.h
> @@ -35,6 +35,16 @@
>  #define CONFIG_SMC91111
>  #define CONFIG_SMC_USE_32_BIT
>  
> +/* epcs_controller.epcs_control_port is a altera_avalon_epcs_flash_controller */
> +#define EPCS_CONTROLLER_REG_BASE 0x82100200
> +#define CONFIG_SYS_ALTERA_SPI_LIST { EPCS_CONTROLLER_REG_BASE }
> +#define CONFIG_ALTERA_SPI
> +#define CONFIG_CMD_SPI
> +#define CONFIG_CMD_SF
> +#define CONFIG_SF_DEFAULT_SPEED 30000000
> +#define CONFIG_SPI_FLASH
> +#define CONFIG_SPI_FLASH_STMICRO
> +
>  /* jtag_uart.avalon_jtag_slave is a altera_avalon_jtag_uart */
>  #define CONFIG_SYS_JTAG_UART_BASE 0x821208b0
>