Blackfin arch: cleanup and promote the general purpose timers api to a core blackfin component

Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

1 files changed, 210 insertions, 0 deletions

diff --git a/include/asm-blackfin/gptimers.h b/include/asm-blackfin/gptimers.h
new file mode 100644
index 000000000000..c97ab03e43a6
--- /dev/null
+++ b/include/asm-blackfin/gptimers.h
@@ -0,0 +1,210 @@
+/*
+ * include/asm/bf5xx_timers.h
+ *
+ * This file contains the major Data structures and constants
+ * used for General Purpose Timer Implementation in BF5xx
+ *
+ * Copyright (C) 2005 John DeHority
+ * Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de)
+ *
+ */
+
+#ifndef _BLACKFIN_TIMERS_H_
+#define _BLACKFIN_TIMERS_H_
+
+#include <linux/types.h>
+#include <asm/blackfin.h>
+
+/*
+ * BF537/BF527: 8 timers:
+ */
+#if defined(BF527_FAMILY) || defined(BF537_FAMILY)
+# define MAX_BLACKFIN_GPTIMERS 8
+# define TIMER0_GROUP_REG      TIMER_ENABLE
+#endif
+/*
+ * BF561: 12 timers:
+ */
+#if defined(CONFIG_BF561)
+# define MAX_BLACKFIN_GPTIMERS 12
+# define TIMER0_GROUP_REG      TMRS8_ENABLE
+# define TIMER8_GROUP_REG      TMRS4_ENABLE
+#endif
+/*
+ * All others: 3 timers:
+ */
+#if !defined(MAX_BLACKFIN_GPTIMERS)
+# define MAX_BLACKFIN_GPTIMERS 3
+# define TIMER0_GROUP_REG      TIMER_ENABLE
+#endif
+
+#define BLACKFIN_GPTIMER_IDMASK ((1UL << MAX_BLACKFIN_GPTIMERS) - 1)
+#define BFIN_TIMER_OCTET(x) ((x) >> 3)
+
+/* used in masks for timer_enable() and timer_disable() */
+#define TIMER0bit  0x0001  /*  0001b */
+#define TIMER1bit  0x0002  /*  0010b */
+#define TIMER2bit  0x0004  /*  0100b */
+
+#if (MAX_BLACKFIN_GPTIMERS > 3)
+# define TIMER3bit  0x0008
+# define TIMER4bit  0x0010
+# define TIMER5bit  0x0020
+# define TIMER6bit  0x0040
+# define TIMER7bit  0x0080
+#endif
+
+#if (MAX_BLACKFIN_GPTIMERS > 8)
+# define TIMER8bit  0x0100
+# define TIMER9bit  0x0200
+# define TIMER10bit 0x0400
+# define TIMER11bit 0x0800
+#endif
+
+#define TIMER0_id   0
+#define TIMER1_id   1
+#define TIMER2_id   2
+
+#if (MAX_BLACKFIN_GPTIMERS > 3)
+# define TIMER3_id   3
+# define TIMER4_id   4
+# define TIMER5_id   5
+# define TIMER6_id   6
+# define TIMER7_id   7
+#endif
+
+#if (MAX_BLACKFIN_GPTIMERS > 8)
+# define TIMER8_id   8
+# define TIMER9_id   9
+# define TIMER10_id 10
+# define TIMER11_id 11
+#endif
+
+/* associated timers for ppi framesync: */
+
+#if defined(CONFIG_BF561)
+# define FS0_1_TIMER_ID   TIMER8_id
+# define FS0_2_TIMER_ID   TIMER9_id
+# define FS1_1_TIMER_ID   TIMER10_id
+# define FS1_2_TIMER_ID   TIMER11_id
+# define FS0_1_TIMER_BIT  TIMER8bit
+# define FS0_2_TIMER_BIT  TIMER9bit
+# define FS1_1_TIMER_BIT  TIMER10bit
+# define FS1_2_TIMER_BIT  TIMER11bit
+# undef FS1_TIMER_ID
+# undef FS2_TIMER_ID
+# undef FS1_TIMER_BIT
+# undef FS2_TIMER_BIT
+#else
+# define FS1_TIMER_ID  TIMER0_id
+# define FS2_TIMER_ID  TIMER1_id
+# define FS1_TIMER_BIT TIMER0bit
+# define FS2_TIMER_BIT TIMER1bit
+#endif
+
+/*
+ * Timer Configuration Register Bits
+ */
+#define TIMER_ERR           0xC000
+#define TIMER_ERR_OVFL      0x4000
+#define TIMER_ERR_PROG_PER  0x8000
+#define TIMER_ERR_PROG_PW   0xC000
+#define TIMER_EMU_RUN       0x0200
+#define	TIMER_TOGGLE_HI     0x0100
+#define	TIMER_CLK_SEL       0x0080
+#define TIMER_OUT_DIS       0x0040
+#define TIMER_TIN_SEL       0x0020
+#define TIMER_IRQ_ENA       0x0010
+#define TIMER_PERIOD_CNT    0x0008
+#define TIMER_PULSE_HI      0x0004
+#define TIMER_MODE          0x0003
+#define TIMER_MODE_PWM      0x0001
+#define TIMER_MODE_WDTH     0x0002
+#define TIMER_MODE_EXT_CLK  0x0003
+
+/*
+ * Timer Status Register Bits
+ */
+#define TIMER_STATUS_TIMIL0 0x0001
+#define TIMER_STATUS_TIMIL1 0x0002
+#define TIMER_STATUS_TIMIL2 0x0004
+#if (MAX_BLACKFIN_GPTIMERS > 3)
+# define TIMER_STATUS_TIMIL3 0x00000008
+# define TIMER_STATUS_TIMIL4 0x00010000
+# define TIMER_STATUS_TIMIL5 0x00020000
+# define TIMER_STATUS_TIMIL6 0x00040000
+# define TIMER_STATUS_TIMIL7 0x00080000
+# if (MAX_BLACKFIN_GPTIMERS > 8)
+#  define TIMER_STATUS_TIMIL8  0x0001
+#  define TIMER_STATUS_TIMIL9  0x0002
+#  define TIMER_STATUS_TIMIL10 0x0004
+#  define TIMER_STATUS_TIMIL11 0x0008
+# endif
+# define TIMER_STATUS_INTR   0x000F000F
+#else
+# define TIMER_STATUS_INTR   0x0007	/* any timer interrupt */
+#endif
+
+#define TIMER_STATUS_TOVF0  0x0010	/* timer 0 overflow error */
+#define TIMER_STATUS_TOVF1  0x0020
+#define TIMER_STATUS_TOVF2  0x0040
+#if (MAX_BLACKFIN_GPTIMERS > 3)
+# define TIMER_STATUS_TOVF3  0x00000080
+# define TIMER_STATUS_TOVF4  0x00100000
+# define TIMER_STATUS_TOVF5  0x00200000
+# define TIMER_STATUS_TOVF6  0x00400000
+# define TIMER_STATUS_TOVF7  0x00800000
+# if (MAX_BLACKFIN_GPTIMERS > 8)
+#  define TIMER_STATUS_TOVF8   0x0010
+#  define TIMER_STATUS_TOVF9   0x0020
+#  define TIMER_STATUS_TOVF10  0x0040
+#  define TIMER_STATUS_TOVF11  0x0080
+# endif
+# define TIMER_STATUS_OFLOW  0x00F000F0
+#else
+# define TIMER_STATUS_OFLOW  0x0070	/* any timer overflow */
+#endif
+
+/*
+ * Timer Slave Enable Status : write 1 to clear
+ */
+#define TIMER_STATUS_TRUN0  0x1000
+#define TIMER_STATUS_TRUN1  0x2000
+#define TIMER_STATUS_TRUN2  0x4000
+#if (MAX_BLACKFIN_GPTIMERS > 3)
+# define TIMER_STATUS_TRUN3  0x00008000
+# define TIMER_STATUS_TRUN4  0x10000000
+# define TIMER_STATUS_TRUN5  0x20000000
+# define TIMER_STATUS_TRUN6  0x40000000
+# define TIMER_STATUS_TRUN7  0x80000000
+# define TIMER_STATUS_TRUN   0xF000F000
+# if (MAX_BLACKFIN_GPTIMERS > 8)
+#  define TIMER_STATUS_TRUN8  0x1000
+#  define TIMER_STATUS_TRUN9  0x2000
+#  define TIMER_STATUS_TRUN10 0x4000
+#  define TIMER_STATUS_TRUN11 0x8000
+# endif
+#else
+# define TIMER_STATUS_TRUN   0x7000
+#endif
+
+/* The actual gptimer API */
+
+void     set_gptimer_pwidth    (int timer_id, uint32_t width);
+uint32_t get_gptimer_pwidth    (int timer_id);
+void     set_gptimer_period    (int timer_id, uint32_t period);
+uint32_t get_gptimer_period    (int timer_id);
+uint32_t get_gptimer_count     (int timer_id);
+uint16_t get_gptimer_intr      (int timer_id);
+void     clear_gptimer_intr    (int timer_id);
+void     set_gptimer_config    (int timer_id, uint16_t config);
+uint16_t get_gptimer_config    (int timer_id);
+void     set_gptimer_pulse_hi  (int timer_id);
+void     clear_gptimer_pulse_hi(int timer_id);
+void     enable_gptimers       (uint16_t mask);
+void     disable_gptimers      (uint16_t mask);
+uint16_t get_enabled_gptimers  (void);
+uint32_t get_gptimer_status    (int group);
+void     set_gptimer_status    (int group, uint32_t value);
+
+#endif