Re: [PATCH 1/3] ARM: memory: da8xx-ddrctl: new driver

Bartosz Golaszewski bgolaszewski@baylibre.com writes:

Create a new driver for the da8xx DDR2/mDDR controller and implement support for writing to the Peripheral Bus Burst Priority Register.

Signed-off-by: Bartosz Golaszewski bgolaszewski@baylibre.com

[...]

diff --git a/drivers/memory/da8xx-ddrctl.c b/drivers/memory/da8xx-ddrctl.c new file mode 100644 index 0000000..dcd0a61 --- /dev/null +++ b/drivers/memory/da8xx-ddrctl.c @@ -0,0 +1,77 @@ +/*

• • TI da8xx DDR2/mDDR controller driver
• • Copyright (C) 2016 BayLibre SAS
• • Author:
• • Bartosz Golaszewski bgolaszewski@baylibre.com
• • This program is free software; you can redistribute it and/or modify
• • it under the terms of the GNU General Public License version 2 as
• • published by the Free Software Foundation.
• */

+#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/io.h>

+#define DA8XX_DDR_CTL_BASE 0xB0000000

This base addr should be the reg property of the node.

+#define DA8XX_PBBPR_OFFSET 0x00000020 +#define DA8XX_PBBPR_REG(p) ((p) + DA8XX_PBBPR_OFFSET)

Kevin