summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorwdenk <wdenk>2002-09-27 01:44:52 +0000
committerwdenk <wdenk>2002-09-27 01:44:52 +0000
commit17bd4a84267be93d68a9e8a390b78db312537e5f (patch)
tree44f5be9526d5f6dd8ccc5e123d5c22ef0a05455e
parent77f855819e013158332efae0686f6545d0e91e30 (diff)
downloadu-boot-imx-17bd4a84267be93d68a9e8a390b78db312537e5f.zip
u-boot-imx-17bd4a84267be93d68a9e8a390b78db312537e5f.tar.gz
u-boot-imx-17bd4a84267be93d68a9e8a390b78db312537e5f.tar.bz2
Initial revision
-rw-r--r--board/sacsng/clkinit.h113
1 files changed, 113 insertions, 0 deletions
diff --git a/board/sacsng/clkinit.h b/board/sacsng/clkinit.h
new file mode 100644
index 0000000..02086d4
--- /dev/null
+++ b/board/sacsng/clkinit.h
@@ -0,0 +1,113 @@
+/*
+ * (C) Copyright 2002
+ * Custom IDEAS, Inc. <www.cideas.com>
+ * Jon Diekema <diekema@cideas.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef FALSE
+#define FALSE 0
+#define TRUE (!FALSE)
+#endif
+
+#define SLRCLK_EN_MASK 0x00040000 /* PA13 - SLRCLK_EN* */
+
+#define MIN_SAMPLE_RATE 4000 /* Minimum sample rate */
+#define MAX_128x_SAMPLE_RATE 43402 /* Maximum 128x sample rate */
+#define MAX_64x_SAMPLE_RATE 86805 /* Maximum 64x sample rate */
+
+#define KHZ ((uint)1000)
+#define MHZ ((uint)(1000 * KHZ))
+
+#define MCLK_BRG 3 /* MCLK, Master CLocK for the A/D & D/A */
+#define SCLK_BRG 7 /* SCLK, Sample CLocK for the A/D & D/A */
+#define LRCLK_BRG 5 /* LRCLK, L/R CLocK for the A/D & D/A */
+ /* 0 == BRG1 (used for SMC1) */
+ /* 1 == BRG2 (used for SMC2) */
+ /* 2 == BRG3 (used for SCC1) */
+ /* 3 == BRG4 (MCLK) */
+ /* 4 == BRG5 */
+ /* 5 == BRG6 (LRCLK) */
+ /* 6 == BRG7 */
+ /* 7 == BRG8 (SCLK) */
+
+#define MCLK_DIVISOR 4 /* SCLK = MCLK / MCLK_DIVISOR */
+#define SCLK_DIVISOR (Daq64xSampling ? 64 : 128)
+ /* LRCLK = SCLK / SCLK_DIVISOR */
+
+#define TIGHTEN_UP_BRG_EN_TIMING /* Tighten up the BRG enable timing */
+#define RUN_SCLK_ON_BRG_INT /* Run SCLK on BRG_INT instead of MCLK */
+ /* The 8260 (Mask B.3) seems to have */
+ /* problems generating SCLK from MCLK */
+ /* via CLK9. */
+#define RUN_LRCLK_ON_BRG_INT /* Run LRCLK on BRG_INT instead of SCLK */
+ /* The 8260 (Mask B.3) seems to have */
+ /* problems generating LRCLK from SCLK */
+
+#define CPM_CLK (gd->bd->bi_cpmfreq)
+#define DFBRG 4
+#define BRG_INT_CLK (CPM_CLK * 2 / DFBRG)
+ /* BRG = CPM * 2 / DFBRG (Sect 9.8) */
+ /* BRG = CPM * 2 / 4 */
+ /* BRG = CPM / 2 */
+
+#define CPM_BRG_EXTC_MASK ((uint)0x0000C000)
+#define CPM_BRG_EXTC_SHIFT 14
+
+#define CPM_BRG_DIV16_MASK ((uint)0x00000001)
+#define CPM_BRG_DIV16_SHIFT 1
+
+#define CPM_BRG_EXTC_BRGCLK 0
+#define CPM_BRG_EXTC_CLK3 1
+#define CPM_BRG_EXTC_CLK9 CPM_BRG_EXTC_CLK3
+#define CPM_BRG_EXTC_CLK5 2
+#define CPM_BRG_EXTC_CLK15 CPM_BRG_EXTC_CLK5
+
+/*
+ * External declarations
+ */
+
+extern int Daq64xSampling;
+
+extern void Daq_BRG_Reset(uint brg);
+extern void Daq_BRG_Run(uint brg);
+
+extern void Daq_BRG_Disable(uint brg);
+extern void Daq_BRG_Enable(uint brg);
+
+extern uint Daq_BRG_Get_Div16(uint brg);
+extern void Daq_BRG_Set_Div16(uint brg, uint div16);
+
+extern uint Daq_BRG_Get_Count(uint brg);
+extern void Daq_BRG_Set_Count(uint brg, uint brg_cnt);
+
+extern uint Daq_BRG_Get_ExtClk(uint brg);
+extern char* Daq_BRG_Get_ExtClk_Description(uint brg);
+extern void Daq_BRG_Set_ExtClk(uint brg, uint extc);
+
+extern uint Daq_BRG_Rate(uint brg);
+
+extern uint Daq_Get_SampleRate(void);
+extern uint Daq_Set_SampleRate(uint rate, uint force);
+
+extern void Daq_Init_Clocks(int sample_rate, int sample_64x);
+extern void Daq_Stop_Clocks(void);
+extern void Daq_Start_Clocks(int sample_rate);
+extern void Daq_Display_Clocks(void);