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clock_am43xx:Set the MAC clock to /5 for OPP100
When EMAC is in the boot order, the boot ROM sets OPP50 and the MAC clock is set to /2. SPL needs to change it to /5 for Ethernet to generate the correct txclk. This patch sets it correctly. Signed-off-by: Steve Kipisz <s-kipisz2@ti.com>
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@ -118,4 +118,7 @@ void enable_basic_clocks(void)
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/* Select the Master osc clk as Timer2 clock source */
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writel(0x1, &cmdpll->clktimer2clk);
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/* For OPP100 the mac clock should be /5. */
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writel(0x4, &cmdpll->clkselmacclk);
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}
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@ -400,6 +400,8 @@ struct prm_device_inst {
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struct cm_dpll {
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unsigned int resv1;
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unsigned int clktimer2clk; /* offset 0x04 */
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unsigned int resv2[11];
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unsigned int clkselmacclk; /* offset 0x34 */
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};
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#endif /* CONFIG_AM43XX */
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