3 * Custom IDEAS, Inc. <www.cideas.com>
4 * Jon Diekema <diekema@cideas.com>
6 * SPDX-License-Identifier: GPL-2.0+
9 #define SLRCLK_EN_MASK 0x00040000 /* PA13 - SLRCLK_EN* */
11 #define MIN_SAMPLE_RATE 4000 /* Minimum sample rate */
12 #define MAX_128x_SAMPLE_RATE 43402 /* Maximum 128x sample rate */
13 #define MAX_64x_SAMPLE_RATE 86805 /* Maximum 64x sample rate */
15 #define KHZ ((uint)1000)
16 #define MHZ ((uint)(1000 * KHZ))
18 #define MCLK_BRG 3 /* MCLK, Master CLocK for the A/D & D/A */
19 #define SCLK_BRG 7 /* SCLK, Sample CLocK for the A/D & D/A */
20 #define LRCLK_BRG 5 /* LRCLK, L/R CLocK for the A/D & D/A */
21 /* 0 == BRG1 (used for SMC1) */
22 /* 1 == BRG2 (used for SMC2) */
23 /* 2 == BRG3 (used for SCC1) */
24 /* 3 == BRG4 (MCLK) */
26 /* 5 == BRG6 (LRCLK) */
28 /* 7 == BRG8 (SCLK) */
30 #define MCLK_DIVISOR 4 /* SCLK = MCLK / MCLK_DIVISOR */
31 #define SCLK_DIVISOR (Daq64xSampling ? 64 : 128)
32 /* LRCLK = SCLK / SCLK_DIVISOR */
34 #define TIGHTEN_UP_BRG_EN_TIMING /* Tighten up the BRG enable timing */
35 #define RUN_SCLK_ON_BRG_INT /* Run SCLK on BRG_INT instead of MCLK */
36 /* The 8260 (Mask B.3) seems to have */
37 /* problems generating SCLK from MCLK */
39 #define RUN_LRCLK_ON_BRG_INT /* Run LRCLK on BRG_INT instead of SCLK */
40 /* The 8260 (Mask B.3) seems to have */
41 /* problems generating LRCLK from SCLK */
43 #define NUM_LRCLKS_TO_STABILIZE 1 /* Number of LRCLK period (sample) */
44 /* to wait for the clock to stabilize */
46 #define CPM_CLK (gd->bd->bi_cpmfreq)
48 #define BRG_INT_CLK (CPM_CLK * 2 / DFBRG)
49 /* BRG = CPM * 2 / DFBRG (Sect 9.8) */
50 /* BRG = CPM * 2 / 4 */
53 #define CPM_BRG_EXTC_MASK ((uint)0x0000C000)
54 #define CPM_BRG_EXTC_SHIFT 14
56 #define CPM_BRG_DIV16_MASK ((uint)0x00000001)
57 #define CPM_BRG_DIV16_SHIFT 1
59 #define CPM_BRG_EXTC_BRGCLK 0
60 #define CPM_BRG_EXTC_CLK3 1
61 #define CPM_BRG_EXTC_CLK9 CPM_BRG_EXTC_CLK3
62 #define CPM_BRG_EXTC_CLK5 2
63 #define CPM_BRG_EXTC_CLK15 CPM_BRG_EXTC_CLK5
65 #define IM_BRGC1 ((uint *)0xf00119f0)
66 #define IM_BRGC2 ((uint *)0xf00119f4)
67 #define IM_BRGC3 ((uint *)0xf00119f8)
68 #define IM_BRGC4 ((uint *)0xf00119fc)
69 #define IM_BRGC5 ((uint *)0xf00115f0)
70 #define IM_BRGC6 ((uint *)0xf00115f4)
71 #define IM_BRGC7 ((uint *)0xf00115f8)
72 #define IM_BRGC8 ((uint *)0xf00115fc)
75 * External declarations
78 extern int Daq64xSampling;
80 extern void Daq_BRG_Reset(uint brg);
81 extern void Daq_BRG_Run(uint brg);
83 extern void Daq_BRG_Disable(uint brg);
84 extern void Daq_BRG_Enable(uint brg);
86 extern uint Daq_BRG_Get_Div16(uint brg);
87 extern void Daq_BRG_Set_Div16(uint brg, uint div16);
89 extern uint Daq_BRG_Get_Count(uint brg);
90 extern void Daq_BRG_Set_Count(uint brg, uint brg_cnt);
92 extern uint Daq_BRG_Get_ExtClk(uint brg);
93 extern char* Daq_BRG_Get_ExtClk_Description(uint brg);
94 extern void Daq_BRG_Set_ExtClk(uint brg, uint extc);
96 extern uint Daq_BRG_Rate(uint brg);
98 extern uint Daq_Get_SampleRate(void);
100 extern void Daq_Init_Clocks(int sample_rate, int sample_64x);
101 extern void Daq_Stop_Clocks(void);
102 extern void Daq_Start_Clocks(int sample_rate);
103 extern void Daq_Display_Clocks(void);