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clk: actions: Add Ethernet clocks

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This commit adds clocks needed for ethernet operations for
Actions OWL family of SoCs (S700 and S900).

Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com>
This commit is contained in:
Amit Singh Tomar 2020-05-09 19:55:09 +05:30 committed by Tom Rini
parent 0a7ba7c53c
commit 3a21734605
4 changed files with 15 additions and 2 deletions
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2
arch/arm/include/asm/arch-owl/regs_s700.h
View file

@ -53,4 +53,6 @@
#define CMU_CVBSPLL 0x00B8
#define CMU_SSTSCLK 0x00C0
#define CMU_DEVCLKEN1_ETH BIT(23)
#endif

4
arch/arm/include/asm/arch-owl/regs_s900.h
View file

@ -61,4 +61,8 @@
#define CMU_TVOUTPLLDEBUG0 (0x00EC)
#define CMU_TVOUTPLLDEBUG1 (0x00FC)
#define CMU_DEVCLKEN1_ETH BIT(22)
#define CLK_ETHERNET CLK_ETH_MAC
#define CMU_ETHERNETPLL CMU_ASSISTPLL
#endif

9
drivers/clk/owl/clk_owl.c
View file

@ -87,6 +87,11 @@ int owl_clk_enable(struct clk *clk)
/* Enable UART3 interface clock */
setbits_le32(priv->base + CMU_DEVCLKEN1, CMU_DEVCLKEN1_UART3);
break;
case CLK_RMII_REF:
case CLK_ETHERNET:
setbits_le32(priv->base + CMU_DEVCLKEN1, CMU_DEVCLKEN1_ETH);
setbits_le32(priv->base + CMU_ETHERNETPLL, 5);
break;
default:
return -EINVAL;
}
@ -112,6 +117,10 @@ int owl_clk_disable(struct clk *clk)
/* Disable UART3 interface clock */
clrbits_le32(priv->base + CMU_DEVCLKEN1, CMU_DEVCLKEN1_UART3);
break;
case CLK_RMII_REF:
case CLK_ETHERNET:
clrbits_le32(priv->base + CMU_DEVCLKEN1, CMU_DEVCLKEN1_ETH);
break;
default:
return -EINVAL;
}

2
drivers/clk/owl/clk_owl.h
View file

@ -62,6 +62,4 @@ struct owl_clk_priv {
#define CMU_DEVCLKEN1_UART5 BIT(21)
#define CMU_DEVCLKEN1_UART3 BIT(11)
#define CMU_DEVCLKEN1_ETH_S700 BIT(23)
#endif