Commit 9c44a7ac authored by Vadim Fedorenko's avatar Vadim Fedorenko Committed by David S. Miller
Browse files

ptp: ocp: add serial port of mRO50 MAC on ART card 



ART card provides interface to access to serial port of miniature atomic
clock found on the card. Add support for this device and configure it
during init phase.

Acked-by: default avatarJonathan Lemon <jonathan.lemon@gmail.com>
Co-developed-by: default avatarCharles Parent <charles.parent@orolia2s.com>
Signed-off-by: default avatarJonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: default avatarVadim Fedorenko <vadfed@fb.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 69dbe107

drivers/ptp/ptp_ocp.c

+20 −0
Original line number Diff line number Diff line
@@ -208,6 +208,11 @@ struct frequency_reg { 
	u32	ctrl;

	u32	status;

};



struct board_config_reg {

	u32 mro50_serial_activate;

};



#define FREQ_STATUS_VALID	BIT(31)

#define FREQ_STATUS_ERROR	BIT(30)

#define FREQ_STATUS_OVERRUN	BIT(29)
@@ -299,6 +304,7 @@ struct ptp_ocp { 
	struct tod_reg __iomem	*tod;

	struct pps_reg __iomem	*pps_to_ext;

	struct pps_reg __iomem	*pps_to_clk;

	struct board_config_reg __iomem	*board_config;

	struct gpio_reg __iomem	*pps_select;

	struct gpio_reg __iomem	*sma_map1;

	struct gpio_reg __iomem	*sma_map2;
@@ -795,6 +801,17 @@ static struct ocp_resource ocp_art_resource[] = { 
			},

		},

	},

	{

		OCP_SERIAL_RESOURCE(mac_port),

		.offset = 0x00190000, .irq_vec = 7,

		.extra = &(struct ptp_ocp_serial_port) {

			.baud = 9600,

		},

	},

	{

		OCP_MEM_RESOURCE(board_config),

		.offset = 0x210000, .size = 0x1000,

	},

	{

		.setup = ptp_ocp_art_board_init,

	},
@@ -2532,6 +2549,9 @@ ptp_ocp_art_board_init(struct ptp_ocp *bp, struct ocp_resource *r) 
	bp->fw_tag = 2;

	bp->sma_op = &ocp_art_sma_op;



	/* Enable MAC serial port during initialisation */

	iowrite32(1, &bp->board_config->mro50_serial_activate);



	ptp_ocp_sma_init(bp);



	err = ptp_ocp_attr_group_add(bp, art_timecard_groups);