From 281ca88fab7f6b66a18d494c05a1f1fa39f11075 Mon Sep 17 00:00:00 2001
From: Moritz Fischer <moritz.fischer@ettus.com>
Date: Tue, 13 Sep 2016 14:44:48 -0700
Subject: [PATCH] cros_ec: Add function to read back flash parameters
Add support for reading back flash parameters as reported by
the ec.
Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: u-boot@lists.denx.de
Acked-by: Simon Glass <sjg@chromium.org>
---
drivers/misc/cros_ec.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/drivers/misc/cros_ec.c b/drivers/misc/cros_ec.c
index 5225cdb1c0..bb6e8fe91d 100644
--- a/drivers/misc/cros_ec.c
+++ b/drivers/misc/cros_ec.c
@@ -790,6 +790,27 @@ static int cros_ec_data_is_erased(const uint32_t *data, int size)
return 1;
}
+/**
+ * Read back flash parameters
+ *
+ * This function reads back parameters of the flash as reported by the EC
+ *
+ * @param dev Pointer to device
+ * @param info Pointer to output flash info struct
+ */
+int cros_ec_read_flashinfo(struct cros_ec_dev *dev,
+ struct ec_response_flash_info *info)
+{
+ int ret;
+
+ ret = ec_command(dev, EC_CMD_FLASH_INFO, 0,
+ NULL, 0, info, sizeof(*info));
+ if (ret < 0)
+ return ret;
+
+ return ret < sizeof(*info) ? -1 : 0;
+}
+
int cros_ec_flash_write(struct cros_ec_dev *dev, const uint8_t *data,
uint32_t offset, uint32_t size)
{
--
2.39.5