13  * * power-on default is 26Mhz, confirmed with a hacked SOF that
15  * * The original driver has a 13Mhz mode too, but it doesn't work (it
16  *   hits all the same code and data paths as 26MHz and acts as a
35 #define MTK_PLL_CON4_ISO_EN  BIT(1)
61 #define MTK_CK_CG_SW 1
63 const struct { uint16_t mhz; bool pll; uint32_t pll_con2; } freqs[] = {  member
73  * an OS timer driver yet.  Use the 13 MHz timer hardware directly.
91 		delay_us(1);  in set_pll_power()
93 		delay_us(1);  in set_pll_power()
98 		delay_us(1);  in set_pll_power()
100 		delay_us(1);  in set_pll_power()
123 void mtk_adsp_set_cpu_freq(int mhz)  in mtk_adsp_set_cpu_freq()  argument
128 		if (freqs[idx].mhz == mhz) {  in mtk_adsp_set_cpu_freq()
133 	if (idx == cur_idx || freqs[idx].mhz != mhz) {  in mtk_adsp_set_cpu_freq()
138 		/* Switch to PLL from 26Mhz */  in mtk_adsp_set_cpu_freq()
144 		/* Switch to 26Mhz from PLL */  in mtk_adsp_set_cpu_freq()
154  * the speed we're at (on MT8195, hardware powers up at 26 Mhz, but
161 	mtk_adsp_set_cpu_freq(freqs[0].mhz);  in mtk_adsp_cpu_freq_init()
162 	mtk_adsp_set_cpu_freq(freqs[ARRAY_SIZE(freqs) - 1].mhz);  in mtk_adsp_cpu_freq_init()