Edward O'Callaghan has uploaded this change for review.

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realtek_mst_i2c_spi.c: Implement wp

WIP/RFC

Change-Id: I8fe6a3b4e7a8637ec9215351f66f5b96054c550d
Signed-off-by: Edward O'Callaghan <quasisec@google.com>
---
M realtek_mst_i2c_spi.c
1 file changed, 30 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/83/64083/1

diff --git a/realtek_mst_i2c_spi.c b/realtek_mst_i2c_spi.c
index 954150d..4128cb1 100644
--- a/realtek_mst_i2c_spi.c
+++ b/realtek_mst_i2c_spi.c
@@ -432,6 +432,33 @@
 	return ret;
 }
 
+static enum flashrom_wp_result realtek_mst_i2c_spi_wp_read_cfg(struct flashrom_wp_cfg *cfg, struct flashctx *flash)
+{
+	/* Not supported. */
+	return FLASHROM_WP_ERR_RANGE_LIST_UNAVAILABLE;
+}
+
+static enum flashrom_wp_result realtek_mst_i2c_spi_wp_write_cfg(struct flashctx *flash, const struct flashrom_wp_cfg *cfg)
+{
+	struct realtek_mst_i2c_spi_data *realtek_mst_data =
+		(struct realtek_mst_i2c_spi_data *)data;
+	int fd = realtek_mst_data->fd;
+
+	int ret = realtek_mst_i2c_spi_toggle_gpio_88_strap(fd, (cfg->mode == FLASHROM_WP_MODE_DISABLED));
+	if (ret) {
+		msg_perr("Unable to toggle gpio 88 strap to True.\n");
+		return FLASHROM_WP_ERR_WRITE_FAILED;
+	}
+
+	return FLASHROM_WP_OK;
+}
+
+static enum flashrom_wp_result realtek_mst_i2c_spi_wp_get_available_ranges(struct flashrom_wp_ranges **list, struct flashctx *flash)
+{
+	/* Not supported. */
+	return FLASHROM_WP_ERR_RANGE_LIST_UNAVAILABLE;
+}
+
 static const struct spi_master spi_master_i2c_realtek_mst = {
 	.max_data_read = 16,
 	.max_data_write = 8,
@@ -441,6 +468,9 @@
 	.write_256 = realtek_mst_i2c_spi_write_256,
 	.write_aai = realtek_mst_i2c_spi_write_aai,
 	.shutdown = realtek_mst_i2c_spi_shutdown,
+	.wp_read_cfg    = realtek_mst_i2c_spi_wp_read_cfg,
+	.wp_write_cfg   = realtek_mst_i2c_spi_wp_write_cfg,
+	.wp_get_ranges  = realtek_mst_i2c_spi_wp_get_available_ranges,
 };
 
 static int get_params(int *reset, int *enter_isp)

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