[U-Boot] [PATCH 02/15 v3] spi: Add driver for Marvell Armada 3700 SoC

[Jagan Teki]

On Fri, Sep 23, 2016 at 7:58 PM, Stefan Roese <sr at denx.de> wrote:
> The SPI IP core in the Marvell Armada 3700 is similar to the one in the
> other Armada SoCs. But the differences are big enough that it makes
> sense to introduce a new driver instead of cluttering the old
> kirkwood driver with #ifdef's.
>
> Signed-off-by: Stefan Roese <sr at denx.de>
> Cc: Nadav Haklai <nadavh at marvell.com>
> Cc: Kostya Porotchkin <kostap at marvell.com>
> Cc: Wilson Ding <dingwei at marvell.com>
> Cc: Victor Gu <xigu at marvell.com>
> Cc: Hua Jing <jinghua at marvell.com>
> Cc: Terry Zhou <bjzhou at marvell.com>
> Cc: Hanna Hawa <hannah at marvell.com>
> Cc: Haim Boot <hayim at marvell.com>
> Cc: Jagan Teki <jteki at openedev.com>
> ---
> v3:
> - Really use hz now in equation
> - Add comment that the DT property for the input clock is deprecated
>   and the clock infrastructure should be used, once available for
>   mvebu in U-Boot
>
> v2:
> - Evaluated hz and used values provided by the DT in mvebu_spi_set_speed()
>   as suggested by Jagan
>
>  drivers/spi/Kconfig           |   7 +
>  drivers/spi/Makefile          |   1 +
>  drivers/spi/mvebu_a3700_spi.c | 297 ++++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 305 insertions(+)
>  create mode 100644 drivers/spi/mvebu_a3700_spi.c
>
> diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
> index 5da66a6..8724f87 100644
> --- a/drivers/spi/Kconfig
> +++ b/drivers/spi/Kconfig
> @@ -68,6 +68,13 @@ config ICH_SPI
>           access the SPI NOR flash on platforms embedding this Intel
>           ICH IP core.
>
> +config MVEBU_A3700_SPI
> +       bool "Marvell Armada 3700 SPI driver"
> +       help
> +         Enable the Marvell Armada 3700 SPI driver. This driver can be
> +         used to access the SPI NOR flash on platforms embedding this
> +         Marvell IP core.
> +
>  config PIC32_SPI
>         bool "Microchip PIC32 SPI driver"
>         depends on MACH_PIC32
> diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile
> index b1d9e20..247c5f6 100644
> --- a/drivers/spi/Makefile
> +++ b/drivers/spi/Makefile
> @@ -37,6 +37,7 @@ obj-$(CONFIG_KIRKWOOD_SPI) += kirkwood_spi.o
>  obj-$(CONFIG_LPC32XX_SSP) += lpc32xx_ssp.o
>  obj-$(CONFIG_MPC52XX_SPI) += mpc52xx_spi.o
>  obj-$(CONFIG_MPC8XXX_SPI) += mpc8xxx_spi.o
> +obj-$(CONFIG_MVEBU_A3700_SPI) += mvebu_a3700_spi.o
>  obj-$(CONFIG_MXC_SPI) += mxc_spi.o
>  obj-$(CONFIG_MXS_SPI) += mxs_spi.o
>  obj-$(CONFIG_OMAP3_SPI) += omap3_spi.o
> diff --git a/drivers/spi/mvebu_a3700_spi.c b/drivers/spi/mvebu_a3700_spi.c
> new file mode 100644
> index 0000000..0a55f3f
> --- /dev/null
> +++ b/drivers/spi/mvebu_a3700_spi.c
> @@ -0,0 +1,297 @@
> +/*
> + * Copyright (C) 2015 Marvell International Ltd.
> + *
> + * Copyright (C) 2016 Stefan Roese <sr at denx.de>
> + *
> + * SPDX-License-Identifier:    GPL-2.0+
> + */
> +
> +#include <common.h>
> +#include <dm.h>
> +#include <malloc.h>
> +#include <spi.h>
> +#include <wait_bit.h>
> +#include <asm/io.h>
> +
> +DECLARE_GLOBAL_DATA_PTR;
> +
> +#define SPI_TIMEOUT                            10000

Can you remove this - sorry, never looked previously.

Reviewed-by: Jagan Teki <jteki at openedev.com>

thanks!
-- 
Jagan Teki
Free Software Engineer | www.openedev.com
U-Boot, Linux | Upstream Maintainer
Hyderabad, India.