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Ip=[192.88.168.50]; Helo=[tx30smr01.am.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY2PR0301MB1624 X-Mailman-Approved-At: Fri, 28 Oct 2016 20:47:11 +0200 Subject: [U-Boot] [PATCH 1/2][v2] lpuart: add a get_lpuart_clk function X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.15 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" From: Shaohui Xie It's not always true that LPUART clock is CONFIG_SYS_CLK_FREQ, this patch provides a weak function get_lpuart_clk, so that the clock can be ovreride on a specific board which uses different clock for LPUART. Signed-off-by: Shaohui Xie --- changes in v2: none. drivers/serial/serial_lpuart.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/serial/serial_lpuart.c b/drivers/serial/serial_lpuart.c index 042e9a2..beb4243 100644 --- a/drivers/serial/serial_lpuart.c +++ b/drivers/serial/serial_lpuart.c @@ -170,9 +170,14 @@ static int lpuart_serial_probe(struct udevice *dev) } #else +u32 __weak get_lpuart_clk(void) +{ + return CONFIG_SYS_CLK_FREQ; +} + static void _lpuart32_serial_setbrg(struct lpuart_fsl *base, int baudrate) { - u32 clk = CONFIG_SYS_CLK_FREQ; + u32 clk = get_lpuart_clk(); u32 sbr; sbr = (clk / (16 * baudrate));