diff mbox

[U-Boot,v2,6/7] rockchip: rk322x: add sysreset driver

Message ID 1498209474-30167-7-git-send-email-kever.yang@rock-chips.com
State Accepted
Delegated to: Philipp Tomsich
Headers show

Commit Message

Kever Yang June 23, 2017, 9:17 a.m. UTC 
Rockchip rk322x sysreset is much like rk3036 and other Rockchip SoCs,
only difference is that the target register address is different.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
---

Changes in v2: None

 drivers/sysreset/sysreset_rk322x.c | 45 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 drivers/sysreset/sysreset_rk322x.c

Comments

Philipp Tomsich June 25, 2017, 11:03 p.m. UTC | #1 
> Rockchip rk322x sysreset is much like rk3036 and other Rockchip SoCs,
> only difference is that the target register address is different.
> 
> Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
> ---
> 
> Changes in v2: None
> 
>  drivers/sysreset/sysreset_rk322x.c | 45 ++++++++++++++++++++++++++++++++++++++
>  1 file changed, 45 insertions(+)
>  create mode 100644 drivers/sysreset/sysreset_rk322x.c
> 

Applied to u-boot-rockchip/next, thanks!
Philipp Tomsich June 25, 2017, 11:09 p.m. UTC | #2 
> Rockchip rk322x sysreset is much like rk3036 and other Rockchip SoCs,
> only difference is that the target register address is different.
> 
> Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
> ---
> 
> Changes in v2: None
> 
>  drivers/sysreset/sysreset_rk322x.c | 45 ++++++++++++++++++++++++++++++++++++++
>  1 file changed, 45 insertions(+)
>  create mode 100644 drivers/sysreset/sysreset_rk322x.c
> 

Applied to u-boot-rockchip/next, thanks!
diff mbox

Patch

diff --git a/drivers/sysreset/sysreset_rk322x.c b/drivers/sysreset/sysreset_rk322x.c
new file mode 100644
index 0000000..5fce79b
--- /dev/null
+++ b/drivers/sysreset/sysreset_rk322x.c
@@ -0,0 +1,45 @@ 
+/*
+ * (C) Copyright 2017 Rockchip Electronics Co., Ltd
+ *
+ * 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_rk322x.h>
+#include <asm/arch/hardware.h>
+#include <linux/err.h>
+
+int rk322x_sysreset_request(struct udevice *dev, enum sysreset_t type)
+{
+	struct rk322x_cru *cru = rockchip_get_cru();
+
+	if (IS_ERR(cru))
+		return PTR_ERR(cru);
+	switch (type) {
+	case SYSRESET_WARM:
+		writel(0xeca8, &cru->cru_glb_srst_snd_value);
+		break;
+	case SYSRESET_COLD:
+		writel(0xfdb9, &cru->cru_glb_srst_fst_value);
+		break;
+	default:
+		return -EPROTONOSUPPORT;
+	}
+
+	return -EINPROGRESS;
+}
+
+static struct sysreset_ops rk322x_sysreset = {
+	.request	= rk322x_sysreset_request,
+};
+
+U_BOOT_DRIVER(sysreset_rk322x) = {
+	.name	= "rk322x_sysreset",
+	.id	= UCLASS_SYSRESET,
+	.ops	= &rk322x_sysreset,
+};