| Message ID | 20221206091428.28285-14-arun.ramadoss@microchip.com (mailing list archive) |
|---|---|
| State | Superseded |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | net: dsa: microchip: add PTP support for KSZ9563/KSZ8563 and LAN937x | expand |
| Context | Check | Description |
|---|---|---|
| netdev/tree_selection | success | Clearly marked for net-next |
| netdev/fixes_present | success | Fixes tag not required for -next series |
| netdev/subject_prefix | success | Link |
| netdev/cover_letter | success | Series has a cover letter |
| netdev/patch_count | success | Link |
| netdev/header_inline | success | No static functions without inline keyword in header files |
| netdev/build_32bit | success | Errors and warnings before: 0 this patch: 0 |
| netdev/cc_maintainers | success | CCed 11 of 11 maintainers |
| netdev/build_clang | success | Errors and warnings before: 0 this patch: 0 |
| netdev/module_param | success | Was 0 now: 0 |
| netdev/verify_signedoff | success | Signed-off-by tag matches author and committer |
| netdev/check_selftest | success | No net selftest shell script |
| netdev/verify_fixes | success | No Fixes tag |
| netdev/build_allmodconfig_warn | success | Errors and warnings before: 0 this patch: 0 |
| netdev/checkpatch | success | total: 0 errors, 0 warnings, 0 checks, 52 lines checked |
| netdev/kdoc | success | Errors and warnings before: 0 this patch: 0 |
| netdev/source_inline | success | Was 0 now: 0 |
diff --git a/drivers/net/dsa/microchip/ksz_ptp.c b/drivers/net/dsa/microchip/ksz_ptp.c index 8392962311e2..a19fd00d549e 100644 --- a/drivers/net/dsa/microchip/ksz_ptp.c +++ b/drivers/net/dsa/microchip/ksz_ptp.c @@ -31,6 +31,28 @@ static int _ksz_ptp_gettime(struct ksz_device *dev, struct timespec64 *ts); +static int ksz_ptp_tou_gpio(struct ksz_device *dev) +{ + int ret; + + if (!is_lan937x(dev)) + return 0; + + ret = ksz_rmw32(dev, REG_PTP_CTRL_STAT__4, GPIO_OUT, + GPIO_OUT); + if (ret) + return ret; + + ret = ksz_rmw32(dev, REG_SW_GLOBAL_LED_OVR__4, LED_OVR_1 | LED_OVR_2, + LED_OVR_1 | LED_OVR_2); + if (ret) + return ret; + + return ksz_rmw32(dev, REG_SW_GLOBAL_LED_SRC__4, + LED_SRC_PTP_GPIO_1 | LED_SRC_PTP_GPIO_2, + LED_SRC_PTP_GPIO_1 | LED_SRC_PTP_GPIO_2); +} + static int ksz_ptp_tou_reset(struct ksz_device *dev, u8 unit) { u32 data; @@ -227,6 +249,10 @@ static int ksz_ptp_enable_perout(struct ksz_device *dev, if (ret) return ret; + ret = ksz_ptp_tou_gpio(dev); + if (ret) + return ret; + ret = ksz_ptp_tou_start(dev, request->index); if (ret) return ret; diff --git a/drivers/net/dsa/microchip/ksz_ptp_reg.h b/drivers/net/dsa/microchip/ksz_ptp_reg.h index dbccfedf89e4..6fea39629460 100644 --- a/drivers/net/dsa/microchip/ksz_ptp_reg.h +++ b/drivers/net/dsa/microchip/ksz_ptp_reg.h @@ -6,6 +6,14 @@ #ifndef __KSZ_PTP_REGS_H #define __KSZ_PTP_REGS_H +#define REG_SW_GLOBAL_LED_OVR__4 0x0120 +#define LED_OVR_2 BIT(1) +#define LED_OVR_1 BIT(0) + +#define REG_SW_GLOBAL_LED_SRC__4 0x0128 +#define LED_SRC_PTP_GPIO_1 BIT(3) +#define LED_SRC_PTP_GPIO_2 BIT(2) + /* 5 - PTP Clock */ #define REG_PTP_CLK_CTRL 0x0500
There is difference in implementation of per_out pins between KSZ9563 and LAN937x. In KSZ9563, Timestamping control register (0x052C) bit 6, if 1 - timestamp input and 0 - trigger output. But it is opposite for LAN937x 1 - trigger output and 0 - timestamp input. As per per_out gpio pins, KSZ9563 has four Led pins and two dedicated gpio pins. But in LAN937x dedicated gpio pins are removed instead there are up to 10 LED pins out of which LED_0 and LED_1 can be mapped to PTP tou 0, 1 or 2. This patch sets the bit 6 in 0x052C register and configure the LED override and source register for LAN937x series of switches alone. Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com> --- drivers/net/dsa/microchip/ksz_ptp.c | 26 +++++++++++++++++++++++++ drivers/net/dsa/microchip/ksz_ptp_reg.h | 8 ++++++++ 2 files changed, 34 insertions(+)