reset: rockchip: implement rk3576 lookup table

The current DT bindings for the rk3576 clock use a different ID than the
one that is supposed to be written to the hardware registers.
Thus, we cannot use directly the id provided in the phandle, but rather
use a lookup table to correctly setup the hardware.

This follows the implementation done in the Linux-Kernel and also
how the rk3588 does this both in the Linux-Kernel as well as U-Boot.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
[adapted from mainline Linux code for u-boot]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-rockchip/clock.h b/arch/arm/include/asm/arch-rockchip/clock.h
index a9921fbb6e4..3c204501f70 100644
--- a/arch/arm/include/asm/arch-rockchip/clock.h
+++ b/arch/arm/include/asm/arch-rockchip/clock.h
@@ -225,6 +225,16 @@ int rockchip_reset_bind_lut(struct udevice *pdev, const int *lookup_table,
  */
 int rk3528_reset_bind_lut(struct udevice *pdev, u32 reg_offset, u32 reg_number);
 /*
+ * rk3576_reset_bind_lut() - Bind soft reset device as child of clock device
+ *			     using dedicated RK3576 lookup table
+ *
+ * @pdev: clock udevice
+ * @reg_offset: the first offset in cru for softreset registers
+ * @reg_number: the reg numbers of softreset registers
+ * Return: 0 success, or error value
+ */
+int rk3576_reset_bind_lut(struct udevice *pdev, u32 reg_offset, u32 reg_number);
+/*
  * rk3588_reset_bind_lut() - Bind soft reset device as child of clock device
  *			     using dedicated RK3588 lookup table
  *