reset: rockchip: implement rk3588 lookup table

The current DT bindings for the rk3588 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 approach has been implemented already in Linux, by commit :
f1c506d152ff ("clk: rockchip: add clock controller for the RK3588")

Hence, implement a similar approach using the lookup table, and adapt
the existing reset driver to work with SoCs using lookup table.
The file rst-rk3588.c has been copied as much as possible from Linux.

Adapt the clk rk3588 driver as well to bind the reset driver with the
lookup table.

Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Eugen Hristev <eugen.hristev@collabora.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-rockchip/clock.h b/arch/arm/include/asm/arch-rockchip/clock.h
index f002ebcb7a..f01c5aeb71 100644
--- a/arch/arm/include/asm/arch-rockchip/clock.h
+++ b/arch/arm/include/asm/arch-rockchip/clock.h
@@ -194,5 +194,26 @@ int rockchip_get_clk(struct udevice **devp);
  * Return: 0 success, or error value
  */
 int rockchip_reset_bind(struct udevice *pdev, u32 reg_offset, u32 reg_number);
+/*
+ * rockchip_reset_bind_lut() - Bind soft reset device as child of clock device
+ *			       using a dedicated SoC lookup table
+ * @pdev: clock udevice
+ * @lookup_table: register lookup_table dedicated to SoC
+ * @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 rockchip_reset_bind_lut(struct udevice *pdev, const int *lookup_table,
+			    u32 reg_offset, u32 reg_number);
+/*
+ * rk3588_reset_bind_lut() - Bind soft reset device as child of clock device
+ *			     using dedicated RK3588 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 rk3588_reset_bind_lut(struct udevice *pdev, u32 reg_offset, u32 reg_number);
 
 #endif