rockchip: Add core Soc start-up code for rv1108

[u-boot] / drivers / sysreset / sysreset_rv1108.c

diff --git a/drivers/sysreset/sysreset_rv1108.c b/drivers/sysreset/sysreset_rv1108.c
new file mode 100644 (file)
index 0000000..9d8e9f7
--- /dev/null
+++ b/drivers/sysreset/sysreset_rv1108.c
@@ -0,0 +1,46 @@
+/*
+ * (C) Copyright 2015 Rockchip Electronics Co., Ltd
+ * Author: Andy Yan <andy.yan@rock-chips.com>
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <sysreset.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/cru_rv1108.h>
+#include <asm/arch/hardware.h>
+#include <linux/err.h>
+
+int rv1108_sysreset_request(struct udevice *dev, enum sysreset_t type)
+{
+       struct rv1108_cru *cru = rockchip_get_cru();
+
+       if (IS_ERR(cru))
+               return PTR_ERR(cru);
+
+       switch (type) {
+       case SYSRESET_WARM:
+               writel(0xeca8, &cru->glb_srst_snd_val);
+               break;
+       case SYSRESET_COLD:
+               writel(0xfdb9, &cru->glb_srst_fst_val);
+               break;
+       default:
+               return -EPROTONOSUPPORT;
+       }
+
+       return -EINPROGRESS;
+}
+
+static struct sysreset_ops rv1108_sysreset = {
+       .request        = rv1108_sysreset_request,
+};
+
+U_BOOT_DRIVER(sysreset_rv1108) = {
+       .name   = "rv1108_sysreset",
+       .id     = UCLASS_SYSRESET,
+       .ops    = &rv1108_sysreset,
+};