X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=drivers%2Fspi%2Fich.c;h=bf2e99b5ccbd6c8a18afc5d7513bbeee984f6ab6;hb=45a26867e8158d0338ba5b99d21989a72d423209;hp=893fe33b66f77572870397d17d45a077c2075b9a;hpb=e1a71f8b339220fa74c9cd5d36ae9c444c492e83;p=oweals%2Fu-boot.git

diff --git a/drivers/spi/ich.c b/drivers/spi/ich.c
index 893fe33b66..bf2e99b5cc 100644
--- a/drivers/spi/ich.c
+++ b/drivers/spi/ich.c
@@ -617,6 +617,22 @@ static int ich_spi_probe(struct udevice *dev)
 	return 0;
 }
 
+static int ich_spi_remove(struct udevice *bus)
+{
+	struct ich_spi_priv *ctlr = dev_get_priv(bus);
+
+	/*
+	 * Configure SPI controller so that the Linux MTD driver can fully
+	 * access the SPI NOR chip
+	 */
+	ich_writew(ctlr, SPI_OPPREFIX, ctlr->preop);
+	ich_writew(ctlr, SPI_OPTYPE, ctlr->optype);
+	ich_writel(ctlr, SPI_OPMENU_LOWER, ctlr->opmenu);
+	ich_writel(ctlr, SPI_OPMENU_UPPER, ctlr->opmenu + sizeof(u32));
+
+	return 0;
+}
+
 static int ich_spi_set_speed(struct udevice *bus, uint speed)
 {
 	struct ich_spi_priv *priv = dev_get_priv(bus);
@@ -700,4 +716,6 @@ U_BOOT_DRIVER(ich_spi) = {
 	.priv_auto_alloc_size = sizeof(struct ich_spi_priv),
 	.child_pre_probe = ich_spi_child_pre_probe,
 	.probe	= ich_spi_probe,
+	.remove	= ich_spi_remove,
+	.flags	= DM_FLAG_OS_PREPARE,
 };