From: Sylvain Lemieux Date: Wed, 10 Feb 2016 18:52:32 +0000 (-0500) Subject: clk: lpc32xx: add HCLK PLL output configuration X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=7e0810c9485ce696df3813574bca44139f6eb0c8;p=openwrt%2Fstaging%2Fblogic.git clk: lpc32xx: add HCLK PLL output configuration This patch add the support to setup the HCLK PLL output using the "assigned-clock-rates" parameter in the device tree. If the option is not use, the clock setup by the kickstart and/or bootloader remain unchanged. The previous kernel version did not change the clock frequency output setup by the kickstart and/or bootloader; this version always setup the clock frequency output to 208MHz. Signed-off-by: Sylvain Lemieux Signed-off-by: Stephen Boyd --- diff --git a/drivers/clk/nxp/clk-lpc32xx.c b/drivers/clk/nxp/clk-lpc32xx.c index 981ff0dd88b4..48b3a11aa09a 100644 --- a/drivers/clk/nxp/clk-lpc32xx.c +++ b/drivers/clk/nxp/clk-lpc32xx.c @@ -87,7 +87,7 @@ enum { enum { /* Start from the last defined clock in dt bindings */ - LPC32XX_CLK_ADC_DIV = LPC32XX_CLK_ADC + 1, + LPC32XX_CLK_ADC_DIV = LPC32XX_CLK_HCLK_PLL + 1, LPC32XX_CLK_ADC_RTC, LPC32XX_CLK_TEST1, LPC32XX_CLK_TEST2, @@ -96,7 +96,6 @@ enum { LPC32XX_CLK_OSC, LPC32XX_CLK_SYS, LPC32XX_CLK_PLL397X, - LPC32XX_CLK_HCLK_PLL, LPC32XX_CLK_HCLK_DIV_PERIPH, LPC32XX_CLK_HCLK_DIV, LPC32XX_CLK_HCLK, @@ -1526,9 +1525,6 @@ static void __init lpc32xx_clk_init(struct device_node *np) of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); - /* For 13MHz osc valid output range of PLL is from 156MHz to 266.5MHz */ - clk_set_rate(clk[LPC32XX_CLK_HCLK_PLL], 208000000); - /* Set 48MHz rate of USB PLL clock */ clk_set_rate(clk[LPC32XX_CLK_USB_PLL], 48000000); diff --git a/include/dt-bindings/clock/lpc32xx-clock.h b/include/dt-bindings/clock/lpc32xx-clock.h index bcb1c9a73519..d41b6fea1450 100644 --- a/include/dt-bindings/clock/lpc32xx-clock.h +++ b/include/dt-bindings/clock/lpc32xx-clock.h @@ -47,6 +47,7 @@ #define LPC32XX_CLK_PWM1 32 #define LPC32XX_CLK_PWM2 33 #define LPC32XX_CLK_ADC 34 +#define LPC32XX_CLK_HCLK_PLL 35 /* LPC32XX USB clocks */ #define LPC32XX_USB_CLK_I2C 1