[PATCH v3 09/11] k210: dts: Set PLL1 to the same rate as PLL0

Sean Anderson seanga2 at gmail.com
Fri Jun 11 06:16:15 CEST 2021


Linux has had some stability issues when using AISRAM with a different
frequency from SRAM. Mirror their change here now that we relocate into
AISRAM.

Signed-off-by: Sean Anderson <seanga2 at gmail.com>
---

Changes in v3:
- Add CLK_K210_SET_RATE to defconfig so these changes apply

 arch/riscv/dts/k210.dtsi           | 2 ++
 configs/sipeed_maix_bitm_defconfig | 1 +
 2 files changed, 3 insertions(+)

diff --git a/arch/riscv/dts/k210.dtsi b/arch/riscv/dts/k210.dtsi
index 2492af8038..8bcd3cebde 100644
--- a/arch/riscv/dts/k210.dtsi
+++ b/arch/riscv/dts/k210.dtsi
@@ -501,6 +501,8 @@
 					#clock-cells = <1>;
 					compatible = "kendryte,k210-clk";
 					clocks = <&in0>;
+					assigned-clocks = <&sysclk K210_CLK_PLL1>;
+					assigned-clock-rates = <390000000>;
 					u-boot,dm-pre-reloc;
 				};
 
diff --git a/configs/sipeed_maix_bitm_defconfig b/configs/sipeed_maix_bitm_defconfig
index bd877cd055..6a06f650ea 100644
--- a/configs/sipeed_maix_bitm_defconfig
+++ b/configs/sipeed_maix_bitm_defconfig
@@ -13,6 +13,7 @@ CONFIG_HUSH_PARSER=y
 CONFIG_MTDIDS_DEFAULT="nor0=spi3:0"
 CONFIG_MTDPARTS_DEFAULT="nor0:1M(u-boot),0x1000 at 0xfff000(env)"
 # CONFIG_NET is not set
+CONFIG_CLK_K210_SET_RATE=y
 # CONFIG_INPUT is not set
 CONFIG_SF_DEFAULT_BUS=3
 # CONFIG_DM_ETH is not set
-- 
2.31.0



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