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clk: imx25: retain early UART clocks during kernel init
Make sure to keep UART clocks enabled during kernel init if earlyprintk or earlycon are active. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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1 changed files with 12 additions and 0 deletions
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@ -86,6 +86,16 @@ enum mx25_clks {
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static struct clk *clk[clk_max];
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static struct clk *clk[clk_max];
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static struct clk ** const uart_clks[] __initconst = {
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&clk[uart_ipg_per],
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&clk[uart1_ipg],
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&clk[uart2_ipg],
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&clk[uart3_ipg],
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&clk[uart4_ipg],
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&clk[uart5_ipg],
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NULL
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};
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static int __init __mx25_clocks_init(unsigned long osc_rate,
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static int __init __mx25_clocks_init(unsigned long osc_rate,
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void __iomem *ccm_base)
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void __iomem *ccm_base)
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{
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{
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@ -233,6 +243,8 @@ static int __init __mx25_clocks_init(unsigned long osc_rate,
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*/
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*/
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clk_set_parent(clk[cko_sel], clk[ipg]);
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clk_set_parent(clk[cko_sel], clk[ipg]);
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imx_register_uart_clocks(uart_clks);
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return 0;
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return 0;
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}
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}
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