iot_dk: Add support of 136 MHz clock

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
6 years ago · 031154fe8f
parent 7d388add55
commit 031154fe8f
1 changed files with 8 additions and 0 deletions
--- a/board/synopsys/iot_devkit/iot_devkit.c
+++ b/board/synopsys/iot_devkit/iot_devkit.c
@ -68,6 +68,14 @@ static int set_cpu_freq(unsigned int clk)
 		writel((readl(PLLCON) & PLL_MASK_2) | 0x200191, PLLCON);
 		break;

+	case 136:
+		writel(readl(PLLCON) & PLL_MASK_0, PLLCON);
+		/* pll_off=1, M=17, N=1, OD=1, PLL_OUT_CLK=136M */
+		writel((readl(PLLCON) & PLL_MASK_1) | 0x100111, PLLCON);
+		/* pll_off=0, M=17, N=1, OD=1, PLL_OUT_CLK=136M */
+		writel((readl(PLLCON) & PLL_MASK_2) | 0x100111, PLLCON);
+		break;
+
 	case 144:
 		writel(readl(PLLCON) & PLL_MASK_0, PLLCON);
 		/* pll_off=1, M=18, N=1, OD=1, PLL_OUT_CLK=144M */