linux-kernel - [PATCH net-next v2 1/3] net: phy: microchip_rds_ptp: Header file library changes for PEROUT

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Message-ID: <20250109102533.15621-2-divya.koppera@microchip.com>
Date: Thu, 9 Jan 2025 15:55:31 +0530
From: Divya Koppera <divya.koppera@...rochip.com>
To: <andrew@...n.ch>, <arun.ramadoss@...rochip.com>,
	<UNGLinuxDriver@...rochip.com>, <hkallweit1@...il.com>,
	<linux@...linux.org.uk>, <davem@...emloft.net>, <edumazet@...gle.com>,
	<kuba@...nel.org>, <pabeni@...hat.com>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <richardcochran@...il.com>,
	<vadim.fedorenko@...ux.dev>
Subject: [PATCH net-next v2 1/3] net: phy: microchip_rds_ptp: Header file library changes for PEROUT

This ptp header file library changes will cover PEROUT
macros that are required to generate periodic output
from pin out

Signed-off-by: Divya Koppera <divya.koppera@...rochip.com>
---
v1 -> v2
- Removed redundant Macros
- Given proper naming to event and pin
---
 drivers/net/phy/microchip_rds_ptp.h | 39 +++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/drivers/net/phy/microchip_rds_ptp.h b/drivers/net/phy/microchip_rds_ptp.h
index e95c065728b5..2a3c566b028f 100644
--- a/drivers/net/phy/microchip_rds_ptp.h
+++ b/drivers/net/phy/microchip_rds_ptp.h
@@ -130,6 +130,38 @@
 #define MCHP_RDS_PTP_TSU_HARD_RESET		0xc1
 #define MCHP_RDS_PTP_TSU_HARDRESET		BIT(0)
 
+#define MCHP_RDS_PTP_CLK_TRGT_SEC_HI		0x15
+#define MCHP_RDS_PTP_CLK_TRGT_SEC_LO		0x16
+#define MCHP_RDS_PTP_CLK_TRGT_NS_HI		0x17
+#define MCHP_RDS_PTP_CLK_TRGT_NS_LO		0x18
+
+#define MCHP_RDS_PTP_CLK_TRGT_RELOAD_SEC_HI	0x19
+#define MCHP_RDS_PTP_CLK_TRGT_RELOAD_SEC_LO	0x1a
+#define MCHP_RDS_PTP_CLK_TRGT_RELOAD_NS_HI	0x1b
+#define MCHP_RDS_PTP_CLK_TRGT_RELOAD_NS_LO	0x1c
+
+#define MCHP_RDS_PTP_GEN_CFG			0x01
+#define MCHP_RDS_PTP_GEN_CFG_LTC_EVT_MASK	GENMASK(11, 8)
+
+#define MCHP_RDS_PTP_GEN_CFG_LTC_EVT_SET(value) (((value) & 0xF) << 4)
+#define MCHP_RDS_PTP_GEN_CFG_RELOAD_ADD		BIT(0)
+#define MCHP_RDS_PTP_GEN_CFG_POLARITY		BIT(1)
+
+#define MCHP_RDS_PTP_GEN_CFG_LTC_EVT_200MS_	13
+#define MCHP_RDS_PTP_GEN_CFG_LTC_EVT_100MS_	12
+#define MCHP_RDS_PTP_GEN_CFG_LTC_EVT_50MS_	11
+#define MCHP_RDS_PTP_GEN_CFG_LTC_EVT_10MS_	10
+#define MCHP_RDS_PTP_GEN_CFG_LTC_EVT_5MS_	9
+#define MCHP_RDS_PTP_GEN_CFG_LTC_EVT_1MS_	8
+#define MCHP_RDS_PTP_GEN_CFG_LTC_EVT_500US_	7
+#define MCHP_RDS_PTP_GEN_CFG_LTC_EVT_100US_	6
+#define MCHP_RDS_PTP_GEN_CFG_LTC_EVT_50US_	5
+#define MCHP_RDS_PTP_GEN_CFG_LTC_EVT_10US_	4
+#define MCHP_RDS_PTP_GEN_CFG_LTC_EVT_5US_	3
+#define MCHP_RDS_PTP_GEN_CFG_LTC_EVT_1US_	2
+#define MCHP_RDS_PTP_GEN_CFG_LTC_EVT_500NS_	1
+#define MCHP_RDS_PTP_GEN_CFG_LTC_EVT_100NS_	0
+
 /* Represents 1ppm adjustment in 2^32 format with
  * each nsec contains 4 clock cycles in 250MHz.
  * The value is calculated as following: (1/1000000)/((2^-32)/4)
@@ -138,6 +170,10 @@
 #define MCHP_RDS_PTP_FIFO_SIZE			8
 #define MCHP_RDS_PTP_MAX_ADJ			31249999
 
+#define MCHP_RDS_PTP_BUFFER_TIME		2
+#define MCHP_RDS_PTP_N_PIN			4
+#define MCHP_RDS_PTP_N_PEROUT			1
+
 #define BASE_CLK(p)				((p)->clk_base_addr)
 #define BASE_PORT(p)				((p)->port_base_addr)
 #define PTP_MMD(p)				((p)->mmd)
@@ -176,6 +212,9 @@ struct mchp_rds_ptp_clock {
 	/* Lock for phc */
 	struct mutex ptp_lock;
 	u8 mmd;
+	int mchp_rds_ptp_event;
+	int event_pin;
+	struct ptp_pin_desc *pin_config;
 };
 
 struct mchp_rds_ptp_rx_ts {
-- 
2.17.1