ptp: ptp_clockmatrix: update to support 4.8.7 firmware

With 4.8.7 firmware, adjtime can change delta instead of absolute time,
which greately increases snap accuracy. PPS alignment doesn't have to
be set for every single TOD change. Other minor changes includes:
adding more debug logs, increasing snap accuracy for pre 4.8.7 firmware
and supporting new tcs2bin format.

Signed-off-by: Min Li <min.li.xe@renesas.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 50 insertions, 11 deletions

diff --git a/drivers/ptp/ptp_clockmatrix.h b/drivers/ptp/ptp_clockmatrix.h
index 3de0eb72889c..ffae56c5d97f 100644
--- a/drivers/ptp/ptp_clockmatrix.h
+++ b/drivers/ptp/ptp_clockmatrix.h
@@ -13,32 +13,48 @@
 #include "idt8a340_reg.h"
 
 #define FW_FILENAME	"idtcm.bin"
-#define MAX_PHC_PLL	4
+#define MAX_TOD		(4)
+#define MAX_PLL		(8)
 
 #define MAX_ABS_WRITE_PHASE_PICOSECONDS (107374182350LL)
 
-#define PLL_MASK_ADDR		(0xFFA5)
-#define DEFAULT_PLL_MASK	(0x04)
+#define TOD_MASK_ADDR		(0xFFA5)
+#define DEFAULT_TOD_MASK	(0x04)
 
 #define SET_U16_LSB(orig, val8) (orig = (0xff00 & (orig)) | (val8))
 #define SET_U16_MSB(orig, val8) (orig = (0x00ff & (orig)) | (val8 << 8))
 
-#define OUTPUT_MASK_PLL0_ADDR		(0xFFB0)
-#define OUTPUT_MASK_PLL1_ADDR		(0xFFB2)
-#define OUTPUT_MASK_PLL2_ADDR		(0xFFB4)
-#define OUTPUT_MASK_PLL3_ADDR		(0xFFB6)
+#define TOD0_PTP_PLL_ADDR		(0xFFA8)
+#define TOD1_PTP_PLL_ADDR		(0xFFA9)
+#define TOD2_PTP_PLL_ADDR		(0xFFAA)
+#define TOD3_PTP_PLL_ADDR		(0xFFAB)
+
+#define TOD0_OUT_ALIGN_MASK_ADDR	(0xFFB0)
+#define TOD1_OUT_ALIGN_MASK_ADDR	(0xFFB2)
+#define TOD2_OUT_ALIGN_MASK_ADDR	(0xFFB4)
+#define TOD3_OUT_ALIGN_MASK_ADDR	(0xFFB6)
 
 #define DEFAULT_OUTPUT_MASK_PLL0	(0x003)
 #define DEFAULT_OUTPUT_MASK_PLL1	(0x00c)
 #define DEFAULT_OUTPUT_MASK_PLL2	(0x030)
 #define DEFAULT_OUTPUT_MASK_PLL3	(0x0c0)
 
+#define DEFAULT_TOD0_PTP_PLL		(0)
+#define DEFAULT_TOD1_PTP_PLL		(1)
+#define DEFAULT_TOD2_PTP_PLL		(2)
+#define DEFAULT_TOD3_PTP_PLL		(3)
+
 #define POST_SM_RESET_DELAY_MS		(3000)
 #define PHASE_PULL_IN_THRESHOLD_NS	(150000)
-#define TOD_WRITE_OVERHEAD_COUNT_MAX	(5)
+#define PHASE_PULL_IN_THRESHOLD_NS_V487	(15000)
+#define TOD_WRITE_OVERHEAD_COUNT_MAX	(2)
 #define TOD_BYTE_COUNT			(11)
 #define WR_PHASE_SETUP_MS		(5000)
 
+#define OUTPUT_MODULE_FROM_INDEX(index)	(OUTPUT_0 + (index) * 0x10)
+
+#define PEROUT_ENABLE_OUTPUT_MASK		(0xdeadbeef)
+
 /* Values of DPLL_N.DPLL_MODE.PLL_MODE */
 enum pll_mode {
 	PLL_MODE_MIN = 0,
@@ -48,7 +64,8 @@ enum pll_mode {
 	PLL_MODE_GPIO_INC_DEC = 3,
 	PLL_MODE_SYNTHESIS = 4,
 	PLL_MODE_PHASE_MEASUREMENT = 5,
-	PLL_MODE_MAX = PLL_MODE_PHASE_MEASUREMENT,
+	PLL_MODE_DISABLED = 6,
+	PLL_MODE_MAX = PLL_MODE_DISABLED,
 };
 
 enum hw_tod_write_trig_sel {
@@ -63,6 +80,26 @@ enum hw_tod_write_trig_sel {
 	WR_TRIG_SEL_MAX = HW_TOD_WR_TRIG_SEL_FOD_SYNC,
 };
 
+/* 4.8.7 only */
+enum scsr_tod_write_trig_sel {
+	SCSR_TOD_WR_TRIG_SEL_DISABLE = 0,
+	SCSR_TOD_WR_TRIG_SEL_IMMEDIATE = 1,
+	SCSR_TOD_WR_TRIG_SEL_REFCLK = 2,
+	SCSR_TOD_WR_TRIG_SEL_PWMPPS = 3,
+	SCSR_TOD_WR_TRIG_SEL_TODPPS = 4,
+	SCSR_TOD_WR_TRIG_SEL_SYNCFOD = 5,
+	SCSR_TOD_WR_TRIG_SEL_GPIO = 6,
+	SCSR_TOD_WR_TRIG_SEL_MAX = SCSR_TOD_WR_TRIG_SEL_GPIO,
+};
+
+/* 4.8.7 only */
+enum scsr_tod_write_type_sel {
+	SCSR_TOD_WR_TYPE_SEL_ABSOLUTE = 0,
+	SCSR_TOD_WR_TYPE_SEL_DELTA_PLUS = 1,
+	SCSR_TOD_WR_TYPE_SEL_DELTA_MINUS = 2,
+	SCSR_TOD_WR_TYPE_SEL_MAX = SCSR_TOD_WR_TYPE_SEL_DELTA_MINUS,
+};
+
 struct idtcm;
 
 struct idtcm_channel {
@@ -79,15 +116,17 @@ struct idtcm_channel {
 	u16			tod_n;
 	u16			hw_dpll_n;
 	enum pll_mode		pll_mode;
+	u8			pll;
 	u16			output_mask;
 	int			write_phase_ready;
 };
 
 struct idtcm {
-	struct idtcm_channel	channel[MAX_PHC_PLL];
+	struct idtcm_channel	channel[MAX_TOD];
 	struct i2c_client	*client;
 	u8			page_offset;
-	u8			pll_mask;
+	u8			tod_mask;
+	char			version[16];
 
 	/* Overhead calculation for adjtime */
 	u8			calculate_overhead_flag;