1 files changed, 109 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/mtd/spi/sf-uclass.c b/roms/u-boot/drivers/mtd/spi/sf-uclass.c
new file mode 100644
index 000000000..cfce00ef5
--- /dev/null
+++ b/roms/u-boot/drivers/mtd/spi/sf-uclass.c
@@ -0,0 +1,109 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2014 Google, Inc
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <log.h>
+#include <malloc.h>
+#include <spi.h>
+#include <spi_flash.h>
+#include <asm/global_data.h>
+#include <dm/device-internal.h>
+#include "sf_internal.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int spi_flash_read_dm(struct udevice *dev, u32 offset, size_t len, void *buf)
+{
+	return log_ret(sf_get_ops(dev)->read(dev, offset, len, buf));
+}
+
+int spi_flash_write_dm(struct udevice *dev, u32 offset, size_t len,
+		       const void *buf)
+{
+	return log_ret(sf_get_ops(dev)->write(dev, offset, len, buf));
+}
+
+int spi_flash_erase_dm(struct udevice *dev, u32 offset, size_t len)
+{
+	return log_ret(sf_get_ops(dev)->erase(dev, offset, len));
+}
+
+int spl_flash_get_sw_write_prot(struct udevice *dev)
+{
+	struct dm_spi_flash_ops *ops = sf_get_ops(dev);
+
+	if (!ops->get_sw_write_prot)
+		return -ENOSYS;
+	return log_ret(ops->get_sw_write_prot(dev));
+}
+
+/*
+ * TODO(sjg@chromium.org): This is an old-style function. We should remove
+ * it when all SPI flash drivers use dm
+ */
+struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
+				  unsigned int max_hz, unsigned int spi_mode)
+{
+	struct udevice *dev;
+
+	if (spi_flash_probe_bus_cs(bus, cs, max_hz, spi_mode, &dev))
+		return NULL;
+
+	return dev_get_uclass_priv(dev);
+}
+
+int spi_flash_probe_bus_cs(unsigned int busnum, unsigned int cs,
+			   unsigned int max_hz, unsigned int spi_mode,
+			   struct udevice **devp)
+{
+	struct spi_slave *slave;
+	struct udevice *bus;
+	char *str;
+	int ret;
+
+#if defined(CONFIG_SPL_BUILD) && CONFIG_IS_ENABLED(USE_TINY_PRINTF)
+	str = "spi_flash";
+#else
+	char name[30];
+
+	snprintf(name, sizeof(name), "spi_flash@%d:%d", busnum, cs);
+	str = strdup(name);
+#endif
+	ret = spi_get_bus_and_cs(busnum, cs, max_hz, spi_mode,
+				  "jedec_spi_nor", str, &bus, &slave);
+	if (ret)
+		return ret;
+
+	*devp = slave->dev;
+	return 0;
+}
+
+static int spi_flash_post_bind(struct udevice *dev)
+{
+#if defined(CONFIG_NEEDS_MANUAL_RELOC)
+	struct dm_spi_flash_ops *ops = sf_get_ops(dev);
+	static int reloc_done;
+
+	if (!reloc_done) {
+		if (ops->read)
+			ops->read += gd->reloc_off;
+		if (ops->write)
+			ops->write += gd->reloc_off;
+		if (ops->erase)
+			ops->erase += gd->reloc_off;
+
+		reloc_done++;
+	}
+#endif
+	return 0;
+}
+
+UCLASS_DRIVER(spi_flash) = {
+	.id		= UCLASS_SPI_FLASH,
+	.name		= "spi_flash",
+	.post_bind	= spi_flash_post_bind,
+	.per_device_auto	= sizeof(struct spi_nor),
+};