diff options
| author | Vadim Fedorenko <vadfed@fb.com> | 2022-10-21 01:24:31 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-10-24 14:10:40 +0200 |
| commit | 9c44a7ac17fb980f8e297588e75a6158c69a1a8e (patch) | |
| tree | ff84b71980c363367ecdca885cb92fc50ef80479 /drivers/ptp | |
| parent | ptp: ocp: add Orolia timecard support (diff) | |
| download | linux-9c44a7ac17fb980f8e297588e75a6158c69a1a8e.tar.xz linux-9c44a7ac17fb980f8e297588e75a6158c69a1a8e.zip | |
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: Jonathan Lemon <jonathan.lemon@gmail.com>
Co-developed-by: Charles Parent <charles.parent@orolia2s.com>
Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: Vadim Fedorenko <vadfed@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/ptp')
| -rw-r--r-- | drivers/ptp/ptp_ocp.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/ptp/ptp_ocp.c b/drivers/ptp/ptp_ocp.c index 8c1ce630b67f..223980d725fe 100644 --- a/drivers/ptp/ptp_ocp.c +++ b/drivers/ptp/ptp_ocp.c @@ -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; @@ -796,6 +802,17 @@ 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); |