diff options
| -rw-r--r-- | Documentation/devicetree/bindings/ptp/ptp-qoriq.txt | 3 | ||||
| -rw-r--r-- | MAINTAINERS | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/freescale/enetc/Kconfig | 12 | ||||
| -rw-r--r-- | drivers/net/ethernet/freescale/enetc/Makefile | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/freescale/enetc/enetc_hw.h | 5 | ||||
| -rw-r--r-- | drivers/net/ethernet/freescale/enetc/enetc_ptp.c | 144 | ||||
| -rw-r--r-- | drivers/net/ethernet/freescale/gianfar_ethtool.c | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/en_rx.c | 22 | ||||
| -rw-r--r-- | drivers/ptp/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/ptp/ptp_qoriq.c | 437 | ||||
| -rw-r--r-- | drivers/ptp/ptp_qoriq_debugfs.c | 48 | ||||
| -rw-r--r-- | include/linux/fsl/ptp_qoriq.h | 63 |
13 files changed, 486 insertions, 258 deletions
diff --git a/Documentation/devicetree/bindings/ptp/ptp-qoriq.txt b/Documentation/devicetree/bindings/ptp/ptp-qoriq.txt index 8e7f8551d190..454c937076a2 100644 --- a/Documentation/devicetree/bindings/ptp/ptp-qoriq.txt +++ b/Documentation/devicetree/bindings/ptp/ptp-qoriq.txt @@ -19,6 +19,9 @@ Clock Properties: - fsl,max-adj Maximum frequency adjustment in parts per billion. - fsl,extts-fifo The presence of this property indicates hardware support for the external trigger stamp FIFO. + - little-endian The presence of this property indicates the 1588 timer + IP block is little-endian mode. The default endian mode + is big-endian. These properties set the operational parameters for the PTP clock. You must choose these carefully for the clock to work right. diff --git a/MAINTAINERS b/MAINTAINERS index f3af5cde6456..d7da0618d6b3 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6104,6 +6104,7 @@ FREESCALE QORIQ PTP CLOCK DRIVER M: Yangbo Lu <yangbo.lu@nxp.com> L: netdev@vger.kernel.org S: Maintained +F: drivers/net/ethernet/freescale/enetc/enetc_ptp.c F: drivers/ptp/ptp_qoriq.c F: drivers/ptp/ptp_qoriq_debugfs.c F: include/linux/fsl/ptp_qoriq.h diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c b/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c index 62497119c85f..bdee441bc3b7 100644 --- a/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c @@ -501,7 +501,7 @@ static int dpaa_get_ts_info(struct net_device *net_dev, struct device_node *mac_node = dev->of_node; struct device_node *fman_node = NULL, *ptp_node = NULL; struct platform_device *ptp_dev = NULL; - struct qoriq_ptp *ptp = NULL; + struct ptp_qoriq *ptp = NULL; info->phc_index = -1; diff --git a/drivers/net/ethernet/freescale/enetc/Kconfig b/drivers/net/ethernet/freescale/enetc/Kconfig index f9dd26fbfc83..8429f5c1d810 100644 --- a/drivers/net/ethernet/freescale/enetc/Kconfig +++ b/drivers/net/ethernet/freescale/enetc/Kconfig @@ -17,3 +17,15 @@ config FSL_ENETC_VF virtual function (VF) devices enabled by the ENETC PF driver. If compiled as module (M), the module name is fsl-enetc-vf. + +config FSL_ENETC_PTP_CLOCK + tristate "ENETC PTP clock driver" + depends on PTP_1588_CLOCK_QORIQ && (FSL_ENETC || FSL_ENETC_VF) + default y + help + This driver adds support for using the ENETC 1588 timer + as a PTP clock. This clock is only useful if your PTP + programs are getting hardware time stamps on the PTP Ethernet + packets using the SO_TIMESTAMPING API. + + If compiled as module (M), the module name is fsl-enetc-ptp. diff --git a/drivers/net/ethernet/freescale/enetc/Makefile b/drivers/net/ethernet/freescale/enetc/Makefile index 9529b01872ca..697660294dbc 100644 --- a/drivers/net/ethernet/freescale/enetc/Makefile +++ b/drivers/net/ethernet/freescale/enetc/Makefile @@ -13,3 +13,6 @@ fsl-enetc-vf-$(CONFIG_FSL_ENETC_VF) += enetc.o enetc_cbdr.o \ enetc_ethtool.o fsl-enetc-vf-objs := enetc_vf.o $(fsl-enetc-vf-y) endif + +obj-$(CONFIG_FSL_ENETC_PTP_CLOCK) += fsl-enetc-ptp.o +fsl-enetc-ptp-$(CONFIG_FSL_ENETC_PTP_CLOCK) += enetc_ptp.o diff --git a/drivers/net/ethernet/freescale/enetc/enetc_hw.h b/drivers/net/ethernet/freescale/enetc/enetc_hw.h index efa0b1a5ef4f..df8eb8882d92 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_hw.h +++ b/drivers/net/ethernet/freescale/enetc/enetc_hw.h @@ -4,8 +4,9 @@ #include <linux/bitops.h> /* ENETC device IDs */ -#define ENETC_DEV_ID_PF 0xe100 -#define ENETC_DEV_ID_VF 0xef00 +#define ENETC_DEV_ID_PF 0xe100 +#define ENETC_DEV_ID_VF 0xef00 +#define ENETC_DEV_ID_PTP 0xee02 /* ENETC register block BAR */ #define ENETC_BAR_REGS 0 diff --git a/drivers/net/ethernet/freescale/enetc/enetc_ptp.c b/drivers/net/ethernet/freescale/enetc/enetc_ptp.c new file mode 100644 index 000000000000..dc2f58a7c9e5 --- /dev/null +++ b/drivers/net/ethernet/freescale/enetc/enetc_ptp.c @@ -0,0 +1,144 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) +/* Copyright 2019 NXP */ + +#include <linux/module.h> +#include <linux/of.h> +#include <linux/fsl/ptp_qoriq.h> + +#include "enetc.h" + +static struct ptp_clock_info enetc_ptp_caps = { + .owner = THIS_MODULE, + .name = "ENETC PTP clock", + .max_adj = 512000, + .n_alarm = 0, + .n_ext_ts = 2, + .n_per_out = 0, + .n_pins = 0, + .pps = 1, + .adjfine = ptp_qoriq_adjfine, + .adjtime = ptp_qoriq_adjtime, + .gettime64 = ptp_qoriq_gettime, + .settime64 = ptp_qoriq_settime, + .enable = ptp_qoriq_enable, +}; + +static int enetc_ptp_probe(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct ptp_qoriq *ptp_qoriq; + void __iomem *base; + int err, len, n; + + if (pdev->dev.of_node && !of_device_is_available(pdev->dev.of_node)) { + dev_info(&pdev->dev, "device is disabled, skipping\n"); + return -ENODEV; + } + + err = pci_enable_device_mem(pdev); + if (err) { + dev_err(&pdev->dev, "device enable failed\n"); + return err; + } + + /* set up for high or low dma */ + err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); + if (err) { + err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); + if (err) { + dev_err(&pdev->dev, + "DMA configuration failed: 0x%x\n", err); + goto err_dma; + } + } + + err = pci_request_mem_regions(pdev, KBUILD_MODNAME); + if (err) { + dev_err(&pdev->dev, "pci_request_regions failed err=%d\n", err); + goto err_pci_mem_reg; + } + + pci_set_master(pdev); + + ptp_qoriq = kzalloc(sizeof(*ptp_qoriq), GFP_KERNEL); + if (!ptp_qoriq) { + err = -ENOMEM; + goto err_alloc_ptp; + } + + len = pci_resource_len(pdev, ENETC_BAR_REGS); + + base = ioremap(pci_resource_start(pdev, ENETC_BAR_REGS), len); + if (!base) { + err = -ENXIO; + dev_err(&pdev->dev, "ioremap() failed\n"); + goto err_ioremap; + } + + /* Allocate 1 interrupt */ + n = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX); + if (n != 1) { + err = -EPERM; + goto err_irq; + } + + ptp_qoriq->irq = pci_irq_vector(pdev, 0); + + err = request_irq(ptp_qoriq->irq, ptp_qoriq_isr, 0, DRIVER, ptp_qoriq); + if (err) { + dev_err(&pdev->dev, "request_irq() failed!\n"); + goto err_irq; + } + + ptp_qoriq->dev = &pdev->dev; + + err = ptp_qoriq_init(ptp_qoriq, base, enetc_ptp_caps); + if (err) + goto err_no_clock; + + pci_set_drvdata(pdev, ptp_qoriq); + + return 0; + +err_no_clock: + free_irq(ptp_qoriq->irq, ptp_qoriq); +err_irq: + iounmap(base); +err_ioremap: + kfree(ptp_qoriq); +err_alloc_ptp: + pci_release_mem_regions(pdev); +err_pci_mem_reg: +err_dma: + pci_disable_device(pdev); + + return err; +} + +static void enetc_ptp_remove(struct pci_dev *pdev) +{ + struct ptp_qoriq *ptp_qoriq = pci_get_drvdata(pdev); + + ptp_qoriq_free(ptp_qoriq); + kfree(ptp_qoriq); + + pci_release_mem_regions(pdev); + pci_disable_device(pdev); +} + +static const struct pci_device_id enetc_ptp_id_table[] = { + { PCI_DEVICE(PCI_VENDOR_ID_FREESCALE, ENETC_DEV_ID_PTP) }, + { 0, } /* End of table. */ +}; +MODULE_DEVICE_TABLE(pci, enetc_ptp_id_table); + +static struct pci_driver enetc_ptp_driver = { + .name = KBUILD_MODNAME, + .id_table = enetc_ptp_id_table, + .probe = enetc_ptp_probe, + .remove = enetc_ptp_remove, +}; +module_pci_driver(enetc_ptp_driver); + +MODULE_DESCRIPTION("ENETC PTP clock driver"); +MODULE_LICENSE("Dual BSD/GPL"); diff --git a/drivers/net/ethernet/freescale/gianfar_ethtool.c b/drivers/net/ethernet/freescale/gianfar_ethtool.c index 241325c35cb4..27ed995f439a 100644 --- a/drivers/net/ethernet/freescale/gianfar_ethtool.c +++ b/drivers/net/ethernet/freescale/gianfar_ethtool.c @@ -1492,7 +1492,7 @@ static int gfar_get_ts_info(struct net_device *dev, struct gfar_private *priv = netdev_priv(dev); struct platform_device *ptp_dev; struct device_node *ptp_node; - struct qoriq_ptp *ptp = NULL; + struct ptp_qoriq *ptp = NULL; info->phc_index = -1; diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c index 9a0881cb7f51..6c01314e87b0 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c @@ -617,6 +617,8 @@ static int get_fixed_ipv6_csum(__wsum hw_checksum, struct sk_buff *skb, } #endif +#define short_frame(size) ((size) <= ETH_ZLEN + ETH_FCS_LEN) + /* We reach this function only after checking that any of * the (IPv4 | IPv6) bits are set in cqe->status. */ @@ -624,9 +626,20 @@ static int check_csum(struct mlx4_cqe *cqe, struct sk_buff *skb, void *va, netdev_features_t dev_features) { __wsum hw_checksum = 0; + void *hdr; + + /* CQE csum doesn't cover padding octets in short ethernet + * frames. And the pad field is appended prior to calculating + * and appending the FCS field. + * + * Detecting these padded frames requires to verify and parse + * IP headers, so we simply force all those small frames to skip + * checksum complete. + */ + if (short_frame(skb->len)) + return -EINVAL; - void *hdr = (u8 *)va + sizeof(struct ethhdr); - + hdr = (u8 *)va + sizeof(struct ethhdr); hw_checksum = csum_unfold((__force __sum16)cqe->checksum); if (cqe->vlan_my_qpn & cpu_to_be32(MLX4_CQE_CVLAN_PRESENT_MASK) && @@ -819,6 +832,11 @@ xdp_drop_no_cnt: skb_record_rx_queue(skb, cq_ring); if (likely(dev->features & NETIF_F_RXCSUM)) { + /* TODO: For IP non TCP/UDP packets when csum complete is + * not an option (not supported or any other reason) we can + * actually check cqe IPOK status bit and report + * CHECKSUM_UNNECESSARY rather than CHECKSUM_NONE + */ if ((cqe->status & cpu_to_be16(MLX4_CQE_STATUS_TCP | MLX4_CQE_STATUS_UDP)) && (cqe->status & cpu_to_be16(MLX4_CQE_STATUS_IPOK)) && diff --git a/drivers/ptp/Kconfig b/drivers/ptp/Kconfig index aeb4a8b2e0af..7fe18636915a 100644 --- a/drivers/ptp/Kconfig +++ b/drivers/ptp/Kconfig @@ -43,7 +43,7 @@ config PTP_1588_CLOCK_DTE config PTP_1588_CLOCK_QORIQ tristate "Freescale QorIQ 1588 timer as PTP clock" - depends on GIANFAR || FSL_DPAA_ETH + depends on GIANFAR || FSL_DPAA_ETH || FSL_ENETC || FSL_ENETC_VF depends on PTP_1588_CLOCK default y help diff --git a/drivers/ptp/ptp_qoriq.c b/drivers/ptp/ptp_qoriq.c index 43416b2e8a13..42d3654f77f0 100644 --- a/drivers/ptp/ptp_qoriq.c +++ b/drivers/ptp/ptp_qoriq.c @@ -22,7 +22,6 @@ #include <linux/device.h> #include <linux/hrtimer.h> -#include <linux/interrupt.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/of.h> @@ -37,61 +36,61 @@ * Register access functions */ -/* Caller must hold qoriq_ptp->lock. */ -static u64 tmr_cnt_read(struct qoriq_ptp *qoriq_ptp) +/* Caller must hold ptp_qoriq->lock. */ +static u64 tmr_cnt_read(struct ptp_qoriq *ptp_qoriq) { - struct qoriq_ptp_registers *regs = &qoriq_ptp->regs; + struct ptp_qoriq_registers *regs = &ptp_qoriq->regs; u64 ns; u32 lo, hi; - lo = qoriq_read(®s->ctrl_regs->tmr_cnt_l); - hi = qoriq_read(®s->ctrl_regs->tmr_cnt_h); + lo = ptp_qoriq->read(®s->ctrl_regs->tmr_cnt_l); + hi = ptp_qoriq->read(®s->ctrl_regs->tmr_cnt_h); ns = ((u64) hi) << 32; ns |= lo; return ns; } -/* Caller must hold qoriq_ptp->lock. */ -static void tmr_cnt_write(struct qoriq_ptp *qoriq_ptp, u64 ns) +/* Caller must hold ptp_qoriq->lock. */ +static void tmr_cnt_write(struct ptp_qoriq *ptp_qoriq, u64 ns) { - struct qoriq_ptp_registers *regs = &qoriq_ptp->regs; + struct ptp_qoriq_registers *regs = &ptp_qoriq->regs; u32 hi = ns >> 32; u32 lo = ns & 0xffffffff; - qoriq_write(®s->ctrl_regs->tmr_cnt_l, lo); - qoriq_write(®s->ctrl_regs->tmr_cnt_h, hi); + ptp_qoriq->write(®s->ctrl_regs->tmr_cnt_l, lo); + ptp_qoriq->write(®s->ctrl_regs->tmr_cnt_h, hi); } -/* Caller must hold qoriq_ptp->lock. */ -static void set_alarm(struct qoriq_ptp *qoriq_ptp) +/* Caller must hold ptp_qoriq->lock. */ +static void set_alarm(struct ptp_qoriq *ptp_qoriq) { - struct qoriq_ptp_registers *regs = &qoriq_ptp->regs; + struct ptp_qoriq_registers *regs = &ptp_qoriq->regs; u64 ns; u32 lo, hi; - ns = tmr_cnt_read(qoriq_ptp) + 1500000000ULL; + ns = tmr_cnt_read(ptp_qoriq) + 1500000000ULL; ns = div_u64(ns, 1000000000UL) * 1000000000ULL; - ns -= qoriq_ptp->tclk_period; + ns -= ptp_qoriq->tclk_period; hi = ns >> 32; lo = ns & 0xffffffff; - qoriq_write(®s->alarm_regs->tmr_alarm1_l, lo); - qoriq_write(®s->alarm_regs->tmr_alarm1_h, hi); + ptp_qoriq->write(®s->alarm_regs->tmr_alarm1_l, lo); + ptp_qoriq->write(®s->alarm_regs->tmr_alarm1_h, hi); } -/* Caller must hold qoriq_ptp->lock. */ -static void set_fipers(struct qoriq_ptp *qoriq_ptp) +/* Caller must hold ptp_qoriq->lock. */ +static void set_fipers(struct ptp_qoriq *ptp_qoriq) { - struct qoriq_ptp_registers *regs = &qoriq_ptp->regs; + struct ptp_qoriq_registers *regs = &ptp_qoriq->regs; - set_alarm(qoriq_ptp); - qoriq_write(®s->fiper_regs->tmr_fiper1, qoriq_ptp->tmr_fiper1); - qoriq_write(®s->fiper_regs->tmr_fiper2, qoriq_ptp->tmr_fiper2); + set_alarm(ptp_qoriq); + ptp_qoriq->write(®s->fiper_regs->tmr_fiper1, ptp_qoriq->tmr_fiper1); + ptp_qoriq->write(®s->fiper_regs->tmr_fiper2, ptp_qoriq->tmr_fiper2); } -static int extts_clean_up(struct qoriq_ptp *qoriq_ptp, int index, +static int extts_clean_up(struct ptp_qoriq *ptp_qoriq, int index, bool update_event) { - struct qoriq_ptp_registers *regs = &qoriq_ptp->regs; + struct ptp_qoriq_registers *regs = &ptp_qoriq->regs; struct ptp_clock_event event; void __iomem *reg_etts_l; void __iomem *reg_etts_h; @@ -116,17 +115,17 @@ static int extts_clean_up(struct qoriq_ptp *qoriq_ptp, int index, event.index = index; do { - lo = qoriq_read(reg_etts_l); - hi = qoriq_read(reg_etts_h); + lo = ptp_qoriq->read(reg_etts_l); + hi = ptp_qoriq->read(reg_etts_h); if (update_event) { event.timestamp = ((u64) hi) << 32; event.timestamp |= lo; - ptp_clock_event(qoriq_ptp->clock, &event); + ptp_clock_event(ptp_qoriq->clock, &event); } - stat = qoriq_read(®s->ctrl_regs->tmr_stat); - } while (qoriq_ptp->extts_fifo_support && (stat & valid)); + stat = ptp_qoriq->read(®s->ctrl_regs->tmr_stat); + } while (ptp_qoriq->extts_fifo_support && (stat & valid)); return 0; } @@ -135,89 +134,90 @@ static int extts_clean_up(struct qoriq_ptp *qoriq_ptp, int index, * Interrupt service routine */ -static irqreturn_t isr(int irq, void *priv) +irqreturn_t ptp_qoriq_isr(int irq, void *priv) { - struct qoriq_ptp *qoriq_ptp = priv; - struct qoriq_ptp_registers *regs = &qoriq_ptp->regs; + struct ptp_qoriq *ptp_qoriq = priv; + struct ptp_qoriq_registers *regs = &ptp_qoriq->regs; struct ptp_clock_event event; u64 ns; u32 ack = 0, lo, hi, mask, val, irqs; - spin_lock(&qoriq_ptp->lock); + spin_lock(&ptp_qoriq->lock); - val = qoriq_read(®s->ctrl_regs->tmr_tevent); - mask = qoriq_read(®s->ctrl_regs->tmr_temask); + val = ptp_qoriq->read(®s->ctrl_regs->tmr_tevent); + mask = ptp_qoriq->read(®s->ctrl_regs->tmr_temask); - spin_unlock(&qoriq_ptp->lock); + spin_unlock(&ptp_qoriq->lock); irqs = val & mask; if (irqs & ETS1) { ack |= ETS1; - extts_clean_up(qoriq_ptp, 0, true); + extts_clean_up(ptp_qoriq, 0, true); } if (irqs & ETS2) { ack |= ETS2; - extts_clean_up(qoriq_ptp, 1, true); + extts_clean_up(ptp_qoriq, 1, true); } if (irqs & ALM2) { ack |= ALM2; - if (qoriq_ptp->alarm_value) { + if (ptp_qoriq->alarm_value) { event.type = PTP_CLOCK_ALARM; event.index = 0; - event.timestamp = qoriq_ptp->alarm_value; - ptp_clock_event(qoriq_ptp->clock, &event); + event.timestamp = ptp_qoriq->alarm_value; + ptp_clock_event(ptp_qoriq->clock, &event); } - if (qoriq_ptp->alarm_interval) { - ns = qoriq_ptp->alarm_value + qoriq_ptp->alarm_interval; + if (ptp_qoriq->alarm_interval) { + ns = ptp_qoriq->alarm_value + ptp_qoriq->alarm_interval; hi = ns >> 32; lo = ns & 0xffffffff; - qoriq_write(®s->alarm_regs->tmr_alarm2_l, lo); - qoriq_write(®s->alarm_regs->tmr_alarm2_h, hi); - qoriq_ptp->alarm_value = ns; + ptp_qoriq->write(®s->alarm_regs->tmr_alarm2_l, lo); + ptp_qoriq->write(®s->alarm_regs->tmr_alarm2_h, hi); + ptp_qoriq->alarm_value = ns; } else { - spin_lock(&qoriq_ptp->lock); - mask = qoriq_read(®s->ctrl_regs->tmr_temask); + spin_lock(&ptp_qoriq->lock); + mask = ptp_qoriq->read(®s->ctrl_regs->tmr_temask); mask &= ~ALM2EN; - qoriq_write(®s->ctrl_regs->tmr_temask, mask); - spin_unlock(&qoriq_ptp->lock); - qoriq_ptp->alarm_value = 0; - qoriq_ptp->alarm_interval = 0; + ptp_qoriq->write(®s->ctrl_regs->tmr_temask, mask); + spin_unlock(&ptp_qoriq->lock); + ptp_qoriq->alarm_value = 0; + ptp_qoriq->alarm_interval = 0; } } if (irqs & PP1) { ack |= PP1; event.type = PTP_CLOCK_PPS; - ptp_clock_event(qoriq_ptp->clock, &event); + ptp_clock_event(ptp_qoriq->clock, &event); } if (ack) { - qoriq_write(®s->ctrl_regs->tmr_tevent, ack); + ptp_qoriq->write(®s->ctrl_regs->tmr_tevent, ack); return IRQ_HANDLED; } else return IRQ_NONE; } +EXPORT_SYMBOL_GPL(ptp_qoriq_isr); /* * PTP clock operations */ -static int ptp_qoriq_adjfine(struct ptp_clock_info *ptp, long scaled_ppm) +int ptp_qoriq_adjfine(struct ptp_clock_info *ptp, long scaled_ppm) { u64 adj, diff; u32 tmr_add; int neg_adj = 0; - struct qoriq_ptp *qoriq_ptp = container_of(ptp, struct qoriq_ptp, caps); - struct qoriq_ptp_registers *regs = &qoriq_ptp->regs; + struct ptp_qoriq *ptp_qoriq = container_of(ptp, struct ptp_qoriq, caps); + struct ptp_qoriq_registers *regs = &ptp_qoriq->regs; if (scaled_ppm < 0) { neg_adj = 1; scaled_ppm = -scaled_ppm; } - tmr_add = qoriq_ptp->tmr_add; + tmr_add = ptp_qoriq->tmr_add; adj = tmr_add; /* calculate diff as adj*(scaled_ppm/65536)/1000000 @@ -229,71 +229,74 @@ static int ptp_qoriq_adjfine(struct ptp_clock_info *ptp, long scaled_ppm) tmr_add = neg_adj ? tmr_add - diff : tmr_add + diff; - qoriq_write(®s->ctrl_regs->tmr_add, tmr_add); + ptp_qoriq->write(®s->ctrl_regs->tmr_add, tmr_add); return 0; } +EXPORT_SYMBOL_GPL(ptp_qoriq_adjfine); -static int ptp_qoriq_adjtime(struct ptp_clock_info *ptp, s64 delta) +int ptp_qoriq_adjtime(struct ptp_clock_info *ptp, s64 delta) { s64 now; unsigned long flags; - struct qoriq_ptp *qoriq_ptp = container_of(ptp, struct qoriq_ptp, caps); + struct ptp_qoriq *ptp_qoriq = container_of(ptp, struct ptp_qoriq, caps); - spin_lock_irqsave(&qoriq_ptp->lock, flags); + spin_lock_irqsave(&ptp_qoriq->lock, flags); - now = tmr_cnt_read(qoriq_ptp); + now = tmr_cnt_read(ptp_qoriq); now += delta; - tmr_cnt_write(qoriq_ptp, now); - set_fipers(qoriq_ptp); + tmr_cnt_write(ptp_qoriq, now); + set_fipers(ptp_qoriq); - spin_unlock_irqrestore(&qoriq_ptp->lock, flags); + spin_unlock_irqrestore(&ptp_qoriq->lock, flags); return 0; } +EXPORT_SYMBOL_GPL(ptp_qoriq_adjtime); -static int ptp_qoriq_gettime(struct ptp_clock_info *ptp, - struct timespec64 *ts) +int ptp_qoriq_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts) { u64 ns; unsigned long flags; - struct qoriq_ptp *qoriq_ptp = container_of(ptp, struct qoriq_ptp, caps); + struct ptp_qoriq *ptp_qoriq = container_of(ptp, struct ptp_qoriq, caps); - spin_lock_irqsave(&qoriq_ptp->lock, flags); + spin_lock_irqsave(&ptp_qoriq->lock, flags); - ns = tmr_cnt_read(qoriq_ptp); + ns = tmr_cnt_read(ptp_qoriq); - spin_unlock_irqrestore(&qoriq_ptp->lock, flags); + spin_unlock_irqrestore(&ptp_qoriq->lock, flags); *ts = ns_to_timespec64(ns); return 0; } +EXPORT_SYMBOL_GPL(ptp_qoriq_gettime); -static int ptp_qoriq_settime(struct ptp_clock_info *ptp, - const struct timespec64 *ts) +int ptp_qoriq_settime(struct ptp_clock_info *ptp, + const struct timespec64 *ts) { u64 ns; unsigned long flags; - struct qoriq_ptp *qoriq_ptp = container_of(ptp, struct qoriq_ptp, caps); + struct ptp_qoriq *ptp_qoriq = container_of(ptp, struct ptp_qoriq, caps); ns = timespec64_to_ns(ts); - spin_lock_irqsave(&qoriq_ptp->lock, flags); + spin_lock_irqsave(&ptp_qoriq->lock, flags); - tmr_cnt_write(qoriq_ptp, ns); - set_fipers(qoriq_ptp); + tmr_cnt_write(ptp_qoriq, ns); + set_fipers(ptp_qoriq); - spin_unlock_irqrestore(&qoriq_ptp->lock, flags); + spin_unlock_irqrestore(&ptp_qoriq->lock, flags); return 0; } +EXPORT_SYMBOL_GPL(ptp_qoriq_settime); -static int ptp_qoriq_enable(struct ptp_clock_info *ptp, - struct ptp_clock_request *rq, int on) +int ptp_qoriq_enable(struct ptp_clock_info *ptp, + struct ptp_clock_request *rq, int on) { - struct qoriq_ptp *qoriq_ptp = container_of(ptp, struct qoriq_ptp, caps); - struct qoriq_ptp_registers *regs = &qoriq_ptp->regs; + struct ptp_qoriq *ptp_qoriq = container_of(ptp, struct ptp_qoriq, caps); + struct ptp_qoriq_registers *regs = &ptp_qoriq->regs; unsigned long flags; u32 bit, mask = 0; @@ -311,7 +314,7 @@ static int ptp_qoriq_enable(struct ptp_clock_info *ptp, } if (on) - extts_clean_up(qoriq_ptp, rq->extts.index, false); + extts_clean_up(ptp_qoriq, rq->extts.index, false); break; case PTP_CLK_REQ_PPS: @@ -321,21 +324,22 @@ static int ptp_qoriq_enable(struct ptp_clock_info *ptp, return -EOPNOTSUPP; } - spin_lock_irqsave(&qoriq_ptp->lock, flags); + spin_lock_irqsave(&ptp_qoriq->lock, flags); - mask = qoriq_read(®s->ctrl_regs->tmr_temask); + mask = ptp_qoriq->read(®s->ctrl_regs->tmr_temask); if (on) { mask |= bit; - qoriq_write(®s->ctrl_regs->tmr_tevent, bit); + ptp_qoriq->write(®s->ctrl_regs->tmr_tevent, bit); } else { mask &= ~bit; } - qoriq_write(®s->ctrl_regs->tmr_temask, mask); + ptp_qoriq->write(®s->ctrl_regs->tmr_temask, mask); - spin_unlock_irqrestore(&qoriq_ptp->lock, flags); + spin_unlock_irqrestore(&ptp_qoriq->lock, flags); return 0; } +EXPORT_SYMBOL_GPL(ptp_qoriq_enable); static const struct ptp_clock_info ptp_qoriq_caps = { .owner = THIS_MODULE, @@ -354,7 +358,7 @@ static const struct ptp_clock_info ptp_qoriq_caps = { }; /** - * qoriq_ptp_nominal_freq - calculate nominal frequency according to + * ptp_qoriq_nominal_freq - calculate nominal frequency according to * reference clock frequency * * @clk_src: reference clock frequency @@ -365,7 +369,7 @@ static const struct ptp_clock_info ptp_qoriq_caps = { * * Return the nominal frequency */ -static u32 qoriq_ptp_nominal_freq(u32 clk_src) +static u32 ptp_qoriq_nominal_freq(u32 clk_src) { u32 remainder = 0; @@ -385,9 +389,9 @@ static u32 qoriq_ptp_nominal_freq(u32 clk_src) } /** - * qoriq_ptp_auto_config - calculate a set of default configurations + * ptp_qoriq_auto_config - calculate a set of default configurations * - * @qoriq_ptp: pointer to qoriq_ptp + * @ptp_qoriq: pointer to ptp_qoriq * @node: pointer to device_node * * If below dts properties are not provided, this function will be @@ -401,7 +405,7 @@ static u32 qoriq_ptp_nominal_freq(u32 clk_src) * * Return 0 if success */ -static int qoriq_ptp_auto_config(struct qoriq_ptp *qoriq_ptp, +static int ptp_qoriq_auto_config(struct ptp_qoriq *ptp_qoriq, struct device_node *node) { struct clk *clk; @@ -411,7 +415,7 @@ static int qoriq_ptp_auto_config(struct qoriq_ptp *qoriq_ptp, u32 remainder = 0; u32 clk_src = 0; - qoriq_ptp->cksel = DEFAULT_CKSEL; + ptp_qoriq->cksel = DEFAULT_CKSEL; clk = of_clk_get(node, 0); if (!IS_ERR(clk)) { @@ -424,12 +428,12 @@ static int qoriq_ptp_auto_config(struct qoriq_ptp *qoriq_ptp, return -EINVAL; } - nominal_freq = qoriq_ptp_nominal_freq(clk_src); + nominal_freq = ptp_qoriq_nominal_freq(clk_src); if (!nominal_freq) return -EINVAL; - qoriq_ptp->tclk_period = 1000000000UL / nominal_freq; - qoriq_ptp->tmr_prsc = DEFAULT_TMR_PRSC; + ptp_qoriq->tclk_period = 1000000000UL / nominal_freq; + ptp_qoriq->tmr_prsc = DEFAULT_TMR_PRSC; /* Calculate initial frequency compensation value for TMR_ADD register. * freq_comp = ceil(2^32 / freq_ratio) @@ -440,172 +444,193 @@ static int qoriq_ptp_auto_config(struct qoriq_ptp *qoriq_ptp, if (remainder) freq_comp++; - qoriq_ptp->tmr_add = freq_comp; - qoriq_ptp->tmr_fiper1 = DEFAULT_FIPER1_PERIOD - qoriq_ptp->tclk_period; - qoriq_ptp->tmr_fiper2 = DEFAULT_FIPER2_PERIOD - qoriq_ptp->tclk_period; + ptp_qoriq->tmr_add = freq_comp; + ptp_qoriq->tmr_fiper1 = DEFAULT_FIPER1_PERIOD - ptp_qoriq->tclk_period; + ptp_qoriq->tmr_fiper2 = DEFAULT_FIPER2_PERIOD - ptp_qoriq->tclk_period; /* max_adj = 1000000000 * (freq_ratio - 1.0) - 1 * freq_ratio = reference_clock_freq / nominal_freq */ max_adj = 1000000000ULL * (clk_src - nominal_freq); max_adj = div_u64(max_adj, nominal_freq) - 1; - qoriq_ptp->caps.max_adj = max_adj; + ptp_qoriq->caps.max_adj = max_adj; return 0; } -static int qoriq_ptp_probe(struct platform_device *dev) +int ptp_qoriq_init(struct ptp_qoriq *ptp_qoriq, void __iomem *base, + const struct ptp_clock_info caps) { - struct device_node *node = dev->dev.of_node; - struct qoriq_ptp *qoriq_ptp; - struct qoriq_ptp_registers *regs; + struct device_node *node = ptp_qoriq->dev->of_node; + struct ptp_qoriq_registers *regs; struct timespec64 now; - int err = -ENOMEM; - u32 tmr_ctrl; unsigned long flags; - void __iomem *base; - - qoriq_ptp = kzalloc(sizeof(*qoriq_ptp), GFP_KERNEL); - if (!qoriq_ptp) - goto no_memory; - - err = -EINVAL; + u32 tmr_ctrl; - qoriq_ptp->dev = &dev->dev; - qoriq_ptp->caps = ptp_qoriq_caps; + ptp_qoriq->base = base; + ptp_qoriq->caps = caps; - if (of_property_read_u32(node, "fsl,cksel", &qoriq_ptp->cksel)) - qoriq_ptp->cksel = DEFAULT_CKSEL; + if (of_property_read_u32(node, "fsl,cksel", &ptp_qoriq->cksel)) + ptp_qoriq->cksel = DEFAULT_CKSEL; if (of_property_read_bool(node, "fsl,extts-fifo")) - qoriq_ptp->extts_fifo_support = true; + ptp_qoriq->extts_fifo_support = true; else - qoriq_ptp->extts_fifo_support = false; + ptp_qoriq->extts_fifo_support = false; if (of_property_read_u32(node, - "fsl,tclk-period", &qoriq_ptp->tclk_period) || + "fsl,tclk-period", &ptp_qoriq->tclk_period) || of_property_read_u32(node, - "fsl,tmr-prsc", &qoriq_ptp->tmr_prsc) || + "fsl,tmr-prsc", &ptp_qoriq->tmr_prsc) || of_property_read_u32(node, - "fsl,tmr-add", &qoriq_ptp->tmr_add) || + "fsl,tmr-add", &ptp_qoriq->tmr_add) || of_property_read_u32(node, - "fsl,tmr-fiper1", &qoriq_ptp->tmr_fiper1) || + "fsl,tmr-fiper1", &ptp_qoriq->tmr_fiper1) || of_property_read_u32(node, - "fsl,tmr-fiper2", &qoriq_ptp->tmr_fiper2) || + "fsl,tmr-fiper2", &ptp_qoriq->tmr_fiper2) || of_property_read_u32(node, - "fsl,max-adj", &qoriq_ptp->caps.max_adj)) { + "fsl,max-adj", &ptp_qoriq->caps.max_adj)) { pr_warn("device tree node missing required elements, try automatic configuration\n"); - if (qoriq_ptp_auto_config(qoriq_ptp, node)) - goto no_config; + if (ptp_qoriq_auto_config(ptp_qoriq, node)) + return -ENODEV; } - err = -ENODEV; + if (of_property_read_bool(node, "little-endian")) { + ptp_qoriq->read = qoriq_read_le; + ptp_qoriq->write = qoriq_write_le; + } else { + ptp_qoriq->read = qoriq_read_be; + ptp_qoriq->write = qoriq_write_be; + } + + /* The eTSEC uses differnt memory map with DPAA/ENETC */ + if (of_device_is_compatible(node, "fsl,etsec-ptp")) { + ptp_qoriq->regs.ctrl_regs = base + ETSEC_CTRL_REGS_OFFSET; + ptp_qoriq->regs.alarm_regs = base + ETSEC_ALARM_REGS_OFFSET; + ptp_qoriq->regs.fiper_regs = base + ETSEC_FIPER_REGS_OFFSET; + ptp_qoriq->regs.etts_regs = base + ETSEC_ETTS_REGS_OFFSET; + } else { + ptp_qoriq->regs.ctrl_regs = base + CTRL_REGS_OFFSET; + ptp_qoriq->regs.alarm_regs = base + ALARM_REGS_OFFSET; + ptp_qoriq->regs.fiper_regs = base + FIPER_REGS_OFFSET; + ptp_qoriq->regs.etts_regs = base + ETTS_REGS_OFFSET; + } + + ktime_get_real_ts64(&now); + ptp_qoriq_settime(&ptp_qoriq->caps, &now); + + tmr_ctrl = + (ptp_qoriq->tclk_period & TCLK_PERIOD_MASK) << TCLK_PERIOD_SHIFT | + (ptp_qoriq->cksel & CKSEL_MASK) << CKSEL_SHIFT; + + spin_lock_init(&ptp_qoriq->lock); + spin_lock_irqsave(&ptp_qoriq->lock, flags); + + regs = &ptp_qoriq->regs; + ptp_qoriq->write(®s->ctrl_regs->tmr_ctrl, tmr_ctrl); + ptp_qoriq->write(®s->ctrl_regs->tmr_add, ptp_qoriq->tmr_add); + ptp_qoriq->write(®s->ctrl_regs->tmr_prsc, ptp_qoriq->tmr_prsc); + ptp_qoriq->write(®s->fiper_regs->tmr_fiper1, ptp_qoriq->tmr_fiper1); + ptp_qoriq->write(®s->fiper_regs->tmr_fiper2, ptp_qoriq->tmr_fiper2); + set_alarm(ptp_qoriq); + ptp_qoriq->write(®s->ctrl_regs->tmr_ctrl, + tmr_ctrl|FIPERST|RTPE|TE|FRD); + + spin_unlock_irqrestore(&ptp_qoriq->lock, flags); + + ptp_qoriq->clock = ptp_clock_register(&ptp_qoriq->caps, ptp_qoriq->dev); + if (IS_ERR(ptp_qoriq->clock)) + return PTR_ERR(ptp_qoriq->clock); + + ptp_qoriq->phc_index = ptp_clock_index(ptp_qoriq->clock); + ptp_qoriq_create_debugfs(ptp_qoriq); + return 0; +} +EXPORT_SYMBOL_GPL(ptp_qoriq_init); + +void ptp_qoriq_free(struct ptp_qoriq *ptp_qoriq) +{ + struct ptp_qoriq_registers *regs = &ptp_qoriq->regs; + + ptp_qoriq->write(®s->ctrl_regs->tmr_temask, 0); + ptp_qoriq->write(®s->ctrl_regs->tmr_ctrl, 0); + + ptp_qoriq_remove_debugfs(ptp_qoriq); + ptp_clock_unregister(ptp_qoriq->clock); + iounmap(ptp_qoriq->base); + free_irq(ptp_qoriq->irq, ptp_qoriq); +} +EXPORT_SYMBOL_GPL(ptp_qoriq_free); - qoriq_ptp->irq = platform_get_irq(dev, 0); +static int ptp_qoriq_probe(struct platform_device *dev) +{ + struct ptp_qoriq *ptp_qoriq; + int err = -ENOMEM; + void __iomem *base; + + ptp_qoriq = kzalloc(sizeof(*ptp_qoriq), GFP_KERNEL); + if (!ptp_qoriq) + goto no_memory; + + ptp_qoriq->dev = &dev->dev; - if (qoriq_ptp->irq < 0) { + err = -ENODEV; + + ptp_qoriq->irq = platform_get_irq(dev, 0); + if (ptp_qoriq->irq < 0) { pr_err("irq not in device tree\n"); goto no_node; } - if (request_irq(qoriq_ptp->irq, isr, IRQF_SHARED, DRIVER, qoriq_ptp)) { + if (request_irq(ptp_qoriq->irq, ptp_qoriq_isr, IRQF_SHARED, + DRIVER, ptp_qoriq)) { pr_err("request_irq failed\n"); goto no_node; } - qoriq_ptp->rsrc = platform_get_resource(dev, IORESOURCE_MEM, 0); - if (!qoriq_ptp->rsrc) { + ptp_qoriq->rsrc = platform_get_resource(dev, IORESOURCE_MEM, 0); + if (!ptp_qoriq->rsrc) { pr_err("no resource\n"); goto no_resource; } - if (request_resource(&iomem_resource, qoriq_ptp->rsrc)) { + if (request_resource(&iomem_resource, ptp_qoriq->rsrc)) { pr_err("resource busy\n"); goto no_resource; } - spin_lock_init(&qoriq_ptp->lock); - - base = ioremap(qoriq_ptp->rsrc->start, - resource_size(qoriq_ptp->rsrc)); + base = ioremap(ptp_qoriq->rsrc->start, + resource_size(ptp_qoriq->rsrc)); if (!base) { pr_err("ioremap ptp registers failed\n"); goto no_ioremap; } - qoriq_ptp->base = base; - - if (of_device_is_compatible(node, "fsl,fman-ptp-timer")) { - qoriq_ptp->regs.ctrl_regs = base + FMAN_CTRL_REGS_OFFSET; - qoriq_ptp->regs.alarm_regs = base + FMAN_ALARM_REGS_OFFSET; - qoriq_ptp->regs.fiper_regs = base + FMAN_FIPER_REGS_OFFSET; - qoriq_ptp->regs.etts_regs = base + FMAN_ETTS_REGS_OFFSET; - } else { - qoriq_ptp->regs.ctrl_regs = base + CTRL_REGS_OFFSET; - qoriq_ptp->regs.alarm_regs = base + ALARM_REGS_OFFSET; - qoriq_ptp->regs.fiper_regs = base + FIPER_REGS_OFFSET; - qoriq_ptp->regs.etts_regs = base + ETTS_REGS_OFFSET; - } - - ktime_get_real_ts64(&now); - ptp_qoriq_settime(&qoriq_ptp->caps, &now); - - tmr_ctrl = - (qoriq_ptp->tclk_period & TCLK_PERIOD_MASK) << TCLK_PERIOD_SHIFT | - (qoriq_ptp->cksel & CKSEL_MASK) << CKSEL_SHIFT; - - spin_lock_irqsave(&qoriq_ptp->lock, flags); - - regs = &qoriq_ptp->regs; - qoriq_write(®s->ctrl_regs->tmr_ctrl, tmr_ctrl); - qoriq_write(®s->ctrl_regs->tmr_add, qoriq_ptp->tmr_add); - qoriq_write(®s->ctrl_regs->tmr_prsc, qoriq_ptp->tmr_prsc); - qoriq_write(®s->fiper_regs->tmr_fiper1, qoriq_ptp->tmr_fiper1); - qoriq_write(®s->fiper_regs->tmr_fiper2, qoriq_ptp->tmr_fiper2); - set_alarm(qoriq_ptp); - qoriq_write(®s->ctrl_regs->tmr_ctrl, tmr_ctrl|FIPERST|RTPE|TE|FRD); - - spin_unlock_irqrestore(&qoriq_ptp->lock, flags); - - qoriq_ptp->clock = ptp_clock_register(&qoriq_ptp->caps, &dev->dev); - if (IS_ERR(qoriq_ptp->clock)) { - err = PTR_ERR(qoriq_ptp->clock); + err = ptp_qoriq_init(ptp_qoriq, base, ptp_qoriq_caps); + if (err) goto no_clock; - } - qoriq_ptp->phc_index = ptp_clock_index(qoriq_ptp->clock); - - ptp_qoriq_create_debugfs(qoriq_ptp); - platform_set_drvdata(dev, qoriq_ptp); + platform_set_drvdata(dev, ptp_qoriq); return 0; no_clock: - iounmap(qoriq_ptp->base); + iounmap(ptp_qoriq->base); no_ioremap: - release_resource(qoriq_ptp->rsrc); + release_resource(ptp_qoriq->rsrc); no_resource: - free_irq(qoriq_ptp->irq, qoriq_ptp); -no_config: + free_irq(ptp_qoriq->irq, ptp_qoriq); no_node: - kfree(qoriq_ptp); + kfree(ptp_qoriq); no_memory: return err; } -static int qoriq_ptp_remove(struct platform_device *dev) +static int ptp_qoriq_remove(struct platform_device *dev) { - struct qoriq_ptp *qoriq_ptp = platform_get_drvdata(dev); - struct qoriq_ptp_registers *regs = &qoriq_ptp->regs; - - qoriq_write(®s->ctrl_regs->tmr_temask, 0); - qoriq_write(®s->ctrl_regs->tmr_ctrl, 0); - - ptp_qoriq_remove_debugfs(qoriq_ptp); - ptp_clock_unregister(qoriq_ptp->clock); - iounmap(qoriq_ptp->base); - release_resource(qoriq_ptp->rsrc); - free_irq(qoriq_ptp->irq, qoriq_ptp); - kfree(qoriq_ptp); + struct ptp_qoriq *ptp_qoriq = platform_get_drvdata(dev); + ptp_qoriq_free(ptp_qoriq); + release_resource(ptp_qoriq->rsrc); + kfree(ptp_qoriq); return 0; } @@ -616,16 +641,16 @@ static const struct of_device_id match_table[] = { }; MODULE_DEVICE_TABLE(of, match_table); -static struct platform_driver qoriq_ptp_driver = { +static struct platform_driver ptp_qoriq_driver = { .driver = { .name = "ptp_qoriq", .of_match_table = match_table, }, - .probe = qoriq_ptp_probe, - .remove = qoriq_ptp_remove, + .probe = ptp_qoriq_probe, + .remove = ptp_qoriq_remove, }; -module_platform_driver(qoriq_ptp_driver); +module_platform_driver(ptp_qoriq_driver); MODULE_AUTHOR("Richard Cochran <richardcochran@gmail.com>"); MODULE_DESCRIPTION("PTP clock for Freescale QorIQ 1588 timer"); diff --git a/drivers/ptp/ptp_qoriq_debugfs.c b/drivers/ptp/ptp_qoriq_debugfs.c index 970595021088..e8dddcedf288 100644 --- a/drivers/ptp/ptp_qoriq_debugfs.c +++ b/drivers/ptp/ptp_qoriq_debugfs.c @@ -7,11 +7,11 @@ static int ptp_qoriq_fiper1_lpbk_get(void *data, u64 *val) { - struct qoriq_ptp *qoriq_ptp = data; - struct qoriq_ptp_registers *regs = &qoriq_ptp->regs; + struct ptp_qoriq *ptp_qoriq = data; + struct ptp_qoriq_registers *regs = &ptp_qoriq->regs; u32 ctrl; - ctrl = qoriq_read(®s->ctrl_regs->tmr_ctrl); + ctrl = ptp_qoriq->read(®s->ctrl_regs->tmr_ctrl); *val = ctrl & PP1L ? 1 : 0; return 0; @@ -19,17 +19,17 @@ static int ptp_qoriq_fiper1_lpbk_get(void *data, u64 *val) static int ptp_qoriq_fiper1_lpbk_set(void *data, u64 val) { - struct qoriq_ptp *qoriq_ptp = data; - struct qoriq_ptp_registers *regs = &qoriq_ptp->regs; + struct ptp_qoriq *ptp_qoriq = data; + struct ptp_qoriq_registers *regs = &ptp_qoriq->regs; u32 ctrl; - ctrl = qoriq_read(®s->ctrl_regs->tmr_ctrl); + ctrl = ptp_qoriq->read(®s->ctrl_regs->tmr_ctrl); if (val == 0) ctrl &= ~PP1L; else ctrl |= PP1L; - qoriq_write(®s->ctrl_regs->tmr_ctrl, ctrl); + ptp_qoriq->write(®s->ctrl_regs->tmr_ctrl, ctrl); return 0; } @@ -38,11 +38,11 @@ DEFINE_DEBUGFS_ATTRIBUTE(ptp_qoriq_fiper1_fops, ptp_qoriq_fiper1_lpbk_get, static int ptp_qoriq_fiper2_lpbk_get(void *data, u64 *val) { - struct qoriq_ptp *qoriq_ptp = data; - struct qoriq_ptp_registers *regs = &qoriq_ptp->regs; + struct ptp_qoriq *ptp_qoriq = data; + struct ptp_qoriq_registers *regs = &ptp_qoriq->regs; u32 ctrl; - ctrl = qoriq_read(®s->ctrl_regs->tmr_ctrl); + ctrl = ptp_qoriq->read(®s->ctrl_regs->tmr_ctrl); *val = ctrl & PP2L ? 1 : 0; return 0; @@ -50,52 +50,52 @@ static int ptp_qoriq_fiper2_lpbk_get(void *data, u64 *val) static int ptp_qoriq_fiper2_lpbk_set(void *data, u64 val) { - struct qoriq_ptp *qoriq_ptp = data; - struct qoriq_ptp_registers *regs = &qoriq_ptp->regs; + struct ptp_qoriq *ptp_qoriq = data; + struct ptp_qoriq_registers *regs = &ptp_qoriq->regs; u32 ctrl; - ctrl = qoriq_read(®s->ctrl_regs->tmr_ctrl); + ctrl = ptp_qoriq->read(®s->ctrl_regs->tmr_ctrl); if (val == 0) ctrl &= ~PP2L; else ctrl |= PP2L; - qoriq_write(®s->ctrl_regs->tmr_ctrl, ctrl); + ptp_qoriq->write(®s->ctrl_regs->tmr_ctrl, ctrl); return 0; } DEFINE_DEBUGFS_ATTRIBUTE(ptp_qoriq_fiper2_fops, ptp_qoriq_fiper2_lpbk_get, ptp_qoriq_fiper2_lpbk_set, "%llu\n"); -void ptp_qoriq_create_debugfs(struct qoriq_ptp *qoriq_ptp) +void ptp_qoriq_create_debugfs(struct ptp_qoriq *ptp_qoriq) { struct dentry *root; - root = debugfs_create_dir(dev_name(qoriq_ptp->dev), NULL); + root = debugfs_create_dir(dev_name(ptp_qoriq->dev), NULL); if (IS_ERR(root)) return; if (!root) goto err_root; - qoriq_ptp->debugfs_root = root; + ptp_qoriq->debugfs_root = root; if (!debugfs_create_file_unsafe("fiper1-loopback", 0600, root, - qoriq_ptp, &ptp_qoriq_fiper1_fops)) + ptp_qoriq, &ptp_qoriq_fiper1_fops)) goto err_node; if (!debugfs_create_file_unsafe("fiper2-loopback", 0600, root, - qoriq_ptp, &ptp_qoriq_fiper2_fops)) + ptp_qoriq, &ptp_qoriq_fiper2_fops)) goto err_node; return; err_node: debugfs_remove_recursive(root); - qoriq_ptp->debugfs_root = NULL; + ptp_qoriq->debugfs_root = NULL; err_root: - dev_err(qoriq_ptp->dev, "failed to initialize debugfs\n"); + dev_err(ptp_qoriq->dev, "failed to initialize debugfs\n"); } -void ptp_qoriq_remove_debugfs(struct qoriq_ptp *qoriq_ptp) +void ptp_qoriq_remove_debugfs(struct ptp_qoriq *ptp_qoriq) { - debugfs_remove_recursive(qoriq_ptp->debugfs_root); - qoriq_ptp->debugfs_root = NULL; + debugfs_remove_recursive(ptp_qoriq->debugfs_root); + ptp_qoriq->debugfs_root = NULL; } diff --git a/include/linux/fsl/ptp_qoriq.h b/include/linux/fsl/ptp_qoriq.h index 94e9797e434c..f127adb71041 100644 --- a/include/linux/fsl/ptp_qoriq.h +++ b/include/linux/fsl/ptp_qoriq.h @@ -7,6 +7,7 @@ #define __PTP_QORIQ_H__ #include <linux/io.h> +#include <linux/interrupt.h> #include <linux/ptp_clock_kernel.h> /* @@ -49,7 +50,7 @@ struct etts_regs { u32 tmr_etts2_l; /* Timestamp of general purpose external trigger */ }; -struct qoriq_ptp_registers { +struct ptp_qoriq_registers { struct ctrl_regs __iomem *ctrl_regs; struct alarm_regs __iomem *alarm_regs; struct fiper_regs __iomem *fiper_regs; @@ -57,15 +58,15 @@ struct qoriq_ptp_registers { }; /* Offset definitions for the four register groups */ -#define CTRL_REGS_OFFSET 0x0 -#define ALARM_REGS_OFFSET 0x40 -#define FIPER_REGS_OFFSET 0x80 -#define ETTS_REGS_OFFSET 0xa0 +#define ETSEC_CTRL_REGS_OFFSET 0x0 +#define ETSEC_ALARM_REGS_OFFSET 0x40 +#define ETSEC_FIPER_REGS_OFFSET 0x80 +#define ETSEC_ETTS_REGS_OFFSET 0xa0 -#define FMAN_CTRL_REGS_OFFSET 0x80 -#define FMAN_ALARM_REGS_OFFSET 0xb8 -#define FMAN_FIPER_REGS_OFFSET 0xd0 -#define FMAN_ETTS_REGS_OFFSET 0xe0 +#define CTRL_REGS_OFFSET 0x80 +#define ALARM_REGS_OFFSET 0xb8 +#define FIPER_REGS_OFFSET 0xd0 +#define ETTS_REGS_OFFSET 0xe0 /* Bit definitions for the TMR_CTRL register */ @@ -136,9 +137,9 @@ struct qoriq_ptp_registers { #define DEFAULT_FIPER1_PERIOD 1000000000 #define DEFAULT_FIPER2_PERIOD 100000 -struct qoriq_ptp { +struct ptp_qoriq { void __iomem *base; - struct qoriq_ptp_registers regs; + struct ptp_qoriq_registers regs; spinlock_t lock; /* protects regs */ struct ptp_clock *clock; struct ptp_clock_info caps; @@ -156,28 +157,48 @@ struct qoriq_ptp { u32 cksel; u32 tmr_fiper1; u32 tmr_fiper2; + u32 (*read)(unsigned __iomem *addr); + void (*write)(unsigned __iomem *addr, u32 val); }; -static inline u32 qoriq_read(unsigned __iomem *addr) +static inline u32 qoriq_read_be(unsigned __iomem *addr) { - u32 val; - - val = ioread32be(addr); - return val; + return ioread32be(addr); } -static inline void qoriq_write(unsigned __iomem *addr, u32 val) +static inline void qoriq_write_be(unsigned __iomem *addr, u32 val) { iowrite32be(val, addr); } +static inline u32 qoriq_read_le(unsigned __iomem *addr) +{ + return ioread32(addr); +} + +static inline void qoriq_write_le(unsigned __iomem *addr, u32 val) +{ + iowrite32(val, addr); +} + +irqreturn_t ptp_qoriq_isr(int irq, void *priv); +int ptp_qoriq_init(struct ptp_qoriq *ptp_qoriq, void __iomem *base, + const struct ptp_clock_info caps); +void ptp_qoriq_free(struct ptp_qoriq *ptp_qoriq); +int ptp_qoriq_adjfine(struct ptp_clock_info *ptp, long scaled_ppm); +int ptp_qoriq_adjtime(struct ptp_clock_info *ptp, s64 delta); +int ptp_qoriq_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts); +int ptp_qoriq_settime(struct ptp_clock_info *ptp, + const struct timespec64 *ts); +int ptp_qoriq_enable(struct ptp_clock_info *ptp, + struct ptp_clock_request *rq, int on); #ifdef CONFIG_DEBUG_FS -void ptp_qoriq_create_debugfs(struct qoriq_ptp *qoriq_ptp); -void ptp_qoriq_remove_debugfs(struct qoriq_ptp *qoriq_ptp); +void ptp_qoriq_create_debugfs(struct ptp_qoriq *ptp_qoriq); +void ptp_qoriq_remove_debugfs(struct ptp_qoriq *ptp_qoriq); #else -static inline void ptp_qoriq_create_debugfs(struct qoriq_ptp *qoriq_ptp) +static inline void ptp_qoriq_create_debugfs(struct ptp_qoriq *ptp_qoriq) { } -static inline void ptp_qoriq_remove_debugfs(struct qoriq_ptp *qoriq_ptp) +static inline void ptp_qoriq_remove_debugfs(struct ptp_qoriq *ptp_qoriq) { } #endif |