clk: clk_stm32f: Remove STMMAC clock setup

Thanks to 'commit ba1f966725 ("net: designware: add clock support")'
we don't need anymore to setup the STMMAC clock in board.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>

arch/arm/include/asm/arch-stm32f7/stm32_periph.h

@@ -23,7 +23,6 @@ enum periph_id {
 enum periph_clock {
 	SYSCFG_CLOCK_CFG,
 	TIMER2_CLOCK_CFG,
-	STMMAC_CLOCK_CFG,
 };
 
 #endif /* __ASM_ARM_ARCH_PERIPH_H */

board/st/stm32f746-disco/stm32f746-disco.c

@@ -75,7 +75,6 @@ static int stmmac_setup(void)
 	clock_setup(SYSCFG_CLOCK_CFG);
 	/* Set >RMII mode */
 	STM32_SYSCFG->pmc |= SYSCFG_PMC_MII_RMII_SEL;
-	clock_setup(STMMAC_CLOCK_CFG);
 
 	return 0;
 }

drivers/clk/clk_stm32f.c

@@ -90,7 +90,6 @@
 enum periph_clock {
 	SYSCFG_CLOCK_CFG,
 	TIMER2_CLOCK_CFG,
-	STMMAC_CLOCK_CFG,
 };
 
 static const struct stm32_clk_info stm32f4_clk_info = {
@@ -358,11 +357,6 @@ void clock_setup(int peripheral)
 	case TIMER2_CLOCK_CFG:
 		setbits_le32(&STM32_RCC->apb1enr, RCC_APB1ENR_TIM2EN);
 		break;
-	case STMMAC_CLOCK_CFG:
-		setbits_le32(&STM32_RCC->ahb1enr, RCC_AHB1ENR_ETHMAC_EN);
-		setbits_le32(&STM32_RCC->ahb1enr, RCC_AHB1ENR_ETHMAC_RX_EN);
-		setbits_le32(&STM32_RCC->ahb1enr, RCC_AHB1ENR_ETHMAC_TX_EN);
-		break;
 	default:
 		break;
 	}