[PATCH] clk: imx: pll14xx: Add 320 MHz and 640 MHz entries for PLL146x
Abel Vesa
abel.vesa at linaro.org
Mon Nov 21 07:59:18 PST 2022
On 22-10-31 21:48:38, Marek Vasut wrote:
> The PLL146x is used to implement SYS_PLL3 on i.MX8MP and can be used
> to drive UARTn_ROOT clock. By setting the PLL3 to 320 MHz or 640 MHz,
> the PLL3 output can be divided down to supply UARTn_ROOT clock with
> precise 64 MHz, which divided down further by 16x oversampling factor
> used by the i.MX UART core yields 4 Mbdps baud base for the UART IP.
> This is useful e.g. for BCM bluetooth chips, which can operate up to
> 4 Mbdps.
>
> Add 320 MHz and 640 MHz entries so the PLL can be configured accordingly.
>
> Signed-off-by: Marek Vasut <marex at denx.de>
Applied. Thanks.
> ---
> Cc: Abel Vesa <abel.vesa at nxp.com>
> Cc: Fabio Estevam <festevam at gmail.com>
> Cc: Sascha Hauer <s.hauer at pengutronix.de>
> Cc: Shawn Guo <shawnguo at kernel.org>
> Cc: Stephen Boyd <sboyd at kernel.org>
> Cc: NXP Linux Team <linux-imx at nxp.com>
> Cc: linux-arm-kernel at lists.infradead.org
> To: linux-clk at vger.kernel.org
> ---
> drivers/clk/imx/clk-pll14xx.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/clk/imx/clk-pll14xx.c b/drivers/clk/imx/clk-pll14xx.c
> index 1d0f79e9c3467..828336873a98f 100644
> --- a/drivers/clk/imx/clk-pll14xx.c
> +++ b/drivers/clk/imx/clk-pll14xx.c
> @@ -54,7 +54,9 @@ static const struct imx_pll14xx_rate_table imx_pll1416x_tbl[] = {
> PLL_1416X_RATE(800000000U, 200, 3, 1),
> PLL_1416X_RATE(750000000U, 250, 2, 2),
> PLL_1416X_RATE(700000000U, 350, 3, 2),
> + PLL_1416X_RATE(640000000U, 320, 3, 2),
> PLL_1416X_RATE(600000000U, 300, 3, 2),
> + PLL_1416X_RATE(320000000U, 160, 3, 2),
> };
>
> static const struct imx_pll14xx_rate_table imx_pll1443x_tbl[] = {
> --
> 2.35.1
>
More information about the linux-arm-kernel
mailing list