diff options
author | Yangbo Lu <yangbo.lu@nxp.com> | 2018-05-25 12:40:34 +0800 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2018-05-28 23:05:11 -0400 |
commit | ceefc71d4c055dab2bba2d2bfa6e7c2855154a24 (patch) | |
tree | a69ac99896fa84fa5218542b83d6d7ab8297490b /drivers | |
parent | b1d2e4e03f92734ff524f96c4b2287133de7a4a3 (diff) | |
download | linux-ceefc71d4c055dab2bba2d2bfa6e7c2855154a24.tar.gz linux-ceefc71d4c055dab2bba2d2bfa6e7c2855154a24.tar.bz2 linux-ceefc71d4c055dab2bba2d2bfa6e7c2855154a24.zip |
ptp: rework gianfar_ptp as QorIQ common PTP driver
gianfar_ptp was the PTP clock driver for 1588 timer
module of Freescale QorIQ eTSEC (Enhanced Three-Speed
Ethernet Controllers) platforms. Actually QorIQ DPAA
(Data Path Acceleration Architecture) platforms is
also using the same 1588 timer module in hardware.
This patch is to rework gianfar_ptp as QorIQ common
PTP driver to support both DPAA and eTSEC. Moved
gianfar_ptp.c to drivers/ptp/, renamed it as
ptp_qoriq.c, and renamed many variables. There were
not any function changes.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/ethernet/freescale/Makefile | 1 | ||||
-rw-r--r-- | drivers/ptp/Kconfig | 14 | ||||
-rw-r--r-- | drivers/ptp/Makefile | 1 | ||||
-rw-r--r-- | drivers/ptp/ptp_qoriq.c (renamed from drivers/net/ethernet/freescale/gianfar_ptp.c) | 320 |
4 files changed, 174 insertions, 162 deletions
diff --git a/drivers/net/ethernet/freescale/Makefile b/drivers/net/ethernet/freescale/Makefile index ed8ad0fefbda..0914a3ea4405 100644 --- a/drivers/net/ethernet/freescale/Makefile +++ b/drivers/net/ethernet/freescale/Makefile @@ -14,7 +14,6 @@ obj-$(CONFIG_FS_ENET) += fs_enet/ obj-$(CONFIG_FSL_PQ_MDIO) += fsl_pq_mdio.o obj-$(CONFIG_FSL_XGMAC_MDIO) += xgmac_mdio.o obj-$(CONFIG_GIANFAR) += gianfar_driver.o -obj-$(CONFIG_PTP_1588_CLOCK_GIANFAR) += gianfar_ptp.o gianfar_driver-objs := gianfar.o \ gianfar_ethtool.o obj-$(CONFIG_UCC_GETH) += ucc_geth_driver.o diff --git a/drivers/ptp/Kconfig b/drivers/ptp/Kconfig index a21ad10d613c..474c988d2e95 100644 --- a/drivers/ptp/Kconfig +++ b/drivers/ptp/Kconfig @@ -41,19 +41,19 @@ config PTP_1588_CLOCK_DTE To compile this driver as a module, choose M here: the module will be called ptp_dte. -config PTP_1588_CLOCK_GIANFAR - tristate "Freescale eTSEC as PTP clock" +config PTP_1588_CLOCK_QORIQ + tristate "Freescale QorIQ 1588 timer as PTP clock" depends on GIANFAR depends on PTP_1588_CLOCK default y help - This driver adds support for using the eTSEC 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. + This driver adds support for using the Freescale QorIQ 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. To compile this driver as a module, choose M here: the module - will be called gianfar_ptp. + will be called ptp_qoriq. config PTP_1588_CLOCK_IXP46X tristate "Intel IXP46x as PTP clock" diff --git a/drivers/ptp/Makefile b/drivers/ptp/Makefile index fd28207f5379..19efa9cfa950 100644 --- a/drivers/ptp/Makefile +++ b/drivers/ptp/Makefile @@ -9,3 +9,4 @@ obj-$(CONFIG_PTP_1588_CLOCK_DTE) += ptp_dte.o obj-$(CONFIG_PTP_1588_CLOCK_IXP46X) += ptp_ixp46x.o obj-$(CONFIG_PTP_1588_CLOCK_PCH) += ptp_pch.o obj-$(CONFIG_PTP_1588_CLOCK_KVM) += ptp_kvm.o +obj-$(CONFIG_PTP_1588_CLOCK_QORIQ) += ptp_qoriq.o diff --git a/drivers/net/ethernet/freescale/gianfar_ptp.c b/drivers/ptp/ptp_qoriq.c index 9f8d4f8e57e3..5110cce78fb5 100644 --- a/drivers/net/ethernet/freescale/gianfar_ptp.c +++ b/drivers/ptp/ptp_qoriq.c @@ -1,5 +1,5 @@ /* - * PTP 1588 clock using the eTSEC + * PTP 1588 clock for Freescale QorIQ 1588 timer * * Copyright (C) 2010 OMICRON electronics GmbH * @@ -29,16 +29,15 @@ #include <linux/of_platform.h> #include <linux/timex.h> #include <linux/io.h> +#include <linux/slab.h> #include <linux/ptp_clock_kernel.h> -#include "gianfar.h" - /* - * gianfar ptp registers + * qoriq ptp registers * Generated by regen.tcl on Thu May 13 01:38:57 PM CEST 2010 */ -struct gianfar_ptp_registers { +struct qoriq_ptp_registers { u32 tmr_ctrl; /* Timer control register */ u32 tmr_tevent; /* Timestamp event register */ u32 tmr_temask; /* Timer event mask register */ @@ -127,18 +126,19 @@ struct gianfar_ptp_registers { #define PRSC_OCK_MASK (0xffff) -#define DRIVER "gianfar_ptp" +#define DRIVER "ptp_qoriq" #define DEFAULT_CKSEL 1 #define N_EXT_TS 2 -#define REG_SIZE sizeof(struct gianfar_ptp_registers) +#define REG_SIZE sizeof(struct qoriq_ptp_registers) -struct etsects { - struct gianfar_ptp_registers __iomem *regs; +struct qoriq_ptp { + struct qoriq_ptp_registers __iomem *regs; spinlock_t lock; /* protects regs */ struct ptp_clock *clock; struct ptp_clock_info caps; struct resource *rsrc; int irq; + int phc_index; u64 alarm_interval; /* for periodic alarm */ u64 alarm_value; u32 tclk_period; /* nanoseconds */ @@ -149,54 +149,67 @@ struct etsects { u32 tmr_fiper2; }; +static inline u32 qoriq_read(unsigned __iomem *addr) +{ + u32 val; + + val = ioread32be(addr); + return val; +} + +static inline void qoriq_write(unsigned __iomem *addr, u32 val) +{ + iowrite32be(val, addr); +} + /* * Register access functions */ -/* Caller must hold etsects->lock. */ -static u64 tmr_cnt_read(struct etsects *etsects) +/* Caller must hold qoriq_ptp->lock. */ +static u64 tmr_cnt_read(struct qoriq_ptp *qoriq_ptp) { u64 ns; u32 lo, hi; - lo = gfar_read(&etsects->regs->tmr_cnt_l); - hi = gfar_read(&etsects->regs->tmr_cnt_h); + lo = qoriq_read(&qoriq_ptp->regs->tmr_cnt_l); + hi = qoriq_read(&qoriq_ptp->regs->tmr_cnt_h); ns = ((u64) hi) << 32; ns |= lo; return ns; } -/* Caller must hold etsects->lock. */ -static void tmr_cnt_write(struct etsects *etsects, u64 ns) +/* Caller must hold qoriq_ptp->lock. */ +static void tmr_cnt_write(struct qoriq_ptp *qoriq_ptp, u64 ns) { u32 hi = ns >> 32; u32 lo = ns & 0xffffffff; - gfar_write(&etsects->regs->tmr_cnt_l, lo); - gfar_write(&etsects->regs->tmr_cnt_h, hi); + qoriq_write(&qoriq_ptp->regs->tmr_cnt_l, lo); + qoriq_write(&qoriq_ptp->regs->tmr_cnt_h, hi); } -/* Caller must hold etsects->lock. */ -static void set_alarm(struct etsects *etsects) +/* Caller must hold qoriq_ptp->lock. */ +static void set_alarm(struct qoriq_ptp *qoriq_ptp) { u64 ns; u32 lo, hi; - ns = tmr_cnt_read(etsects) + 1500000000ULL; + ns = tmr_cnt_read(qoriq_ptp) + 1500000000ULL; ns = div_u64(ns, 1000000000UL) * 1000000000ULL; - ns -= etsects->tclk_period; + ns -= qoriq_ptp->tclk_period; hi = ns >> 32; lo = ns & 0xffffffff; - gfar_write(&etsects->regs->tmr_alarm1_l, lo); - gfar_write(&etsects->regs->tmr_alarm1_h, hi); + qoriq_write(&qoriq_ptp->regs->tmr_alarm1_l, lo); + qoriq_write(&qoriq_ptp->regs->tmr_alarm1_h, hi); } -/* Caller must hold etsects->lock. */ -static void set_fipers(struct etsects *etsects) +/* Caller must hold qoriq_ptp->lock. */ +static void set_fipers(struct qoriq_ptp *qoriq_ptp) { - set_alarm(etsects); - gfar_write(&etsects->regs->tmr_fiper1, etsects->tmr_fiper1); - gfar_write(&etsects->regs->tmr_fiper2, etsects->tmr_fiper2); + set_alarm(qoriq_ptp); + qoriq_write(&qoriq_ptp->regs->tmr_fiper1, qoriq_ptp->tmr_fiper1); + qoriq_write(&qoriq_ptp->regs->tmr_fiper2, qoriq_ptp->tmr_fiper2); } /* @@ -205,72 +218,72 @@ static void set_fipers(struct etsects *etsects) static irqreturn_t isr(int irq, void *priv) { - struct etsects *etsects = priv; + struct qoriq_ptp *qoriq_ptp = priv; struct ptp_clock_event event; u64 ns; u32 ack = 0, lo, hi, mask, val; - val = gfar_read(&etsects->regs->tmr_tevent); + val = qoriq_read(&qoriq_ptp->regs->tmr_tevent); if (val & ETS1) { ack |= ETS1; - hi = gfar_read(&etsects->regs->tmr_etts1_h); - lo = gfar_read(&etsects->regs->tmr_etts1_l); + hi = qoriq_read(&qoriq_ptp->regs->tmr_etts1_h); + lo = qoriq_read(&qoriq_ptp->regs->tmr_etts1_l); event.type = PTP_CLOCK_EXTTS; event.index = 0; event.timestamp = ((u64) hi) << 32; event.timestamp |= lo; - ptp_clock_event(etsects->clock, &event); + ptp_clock_event(qoriq_ptp->clock, &event); } if (val & ETS2) { ack |= ETS2; - hi = gfar_read(&etsects->regs->tmr_etts2_h); - lo = gfar_read(&etsects->regs->tmr_etts2_l); + hi = qoriq_read(&qoriq_ptp->regs->tmr_etts2_h); + lo = qoriq_read(&qoriq_ptp->regs->tmr_etts2_l); event.type = PTP_CLOCK_EXTTS; event.index = 1; event.timestamp = ((u64) hi) << 32; event.timestamp |= lo; - ptp_clock_event(etsects->clock, &event); + ptp_clock_event(qoriq_ptp->clock, &event); } if (val & ALM2) { ack |= ALM2; - if (etsects->alarm_value) { + if (qoriq_ptp->alarm_value) { event.type = PTP_CLOCK_ALARM; event.index = 0; - event.timestamp = etsects->alarm_value; - ptp_clock_event(etsects->clock, &event); + event.timestamp = qoriq_ptp->alarm_value; + ptp_clock_event(qoriq_ptp->clock, &event); } - if (etsects->alarm_interval) { - ns = etsects->alarm_value + etsects->alarm_interval; + if (qoriq_ptp->alarm_interval) { + ns = qoriq_ptp->alarm_value + qoriq_ptp->alarm_interval; hi = ns >> 32; lo = ns & 0xffffffff; - spin_lock(&etsects->lock); - gfar_write(&etsects->regs->tmr_alarm2_l, lo); - gfar_write(&etsects->regs->tmr_alarm2_h, hi); - spin_unlock(&etsects->lock); - etsects->alarm_value = ns; + spin_lock(&qoriq_ptp->lock); + qoriq_write(&qoriq_ptp->regs->tmr_alarm2_l, lo); + qoriq_write(&qoriq_ptp->regs->tmr_alarm2_h, hi); + spin_unlock(&qoriq_ptp->lock); + qoriq_ptp->alarm_value = ns; } else { - gfar_write(&etsects->regs->tmr_tevent, ALM2); - spin_lock(&etsects->lock); - mask = gfar_read(&etsects->regs->tmr_temask); + qoriq_write(&qoriq_ptp->regs->tmr_tevent, ALM2); + spin_lock(&qoriq_ptp->lock); + mask = qoriq_read(&qoriq_ptp->regs->tmr_temask); mask &= ~ALM2EN; - gfar_write(&etsects->regs->tmr_temask, mask); - spin_unlock(&etsects->lock); - etsects->alarm_value = 0; - etsects->alarm_interval = 0; + qoriq_write(&qoriq_ptp->regs->tmr_temask, mask); + spin_unlock(&qoriq_ptp->lock); + qoriq_ptp->alarm_value = 0; + qoriq_ptp->alarm_interval = 0; } } if (val & PP1) { ack |= PP1; event.type = PTP_CLOCK_PPS; - ptp_clock_event(etsects->clock, &event); + ptp_clock_event(qoriq_ptp->clock, &event); } if (ack) { - gfar_write(&etsects->regs->tmr_tevent, ack); + qoriq_write(&qoriq_ptp->regs->tmr_tevent, ack); return IRQ_HANDLED; } else return IRQ_NONE; @@ -280,18 +293,18 @@ static irqreturn_t isr(int irq, void *priv) * PTP clock operations */ -static int ptp_gianfar_adjfine(struct ptp_clock_info *ptp, long scaled_ppm) +static int ptp_qoriq_adjfine(struct ptp_clock_info *ptp, long scaled_ppm) { u64 adj, diff; u32 tmr_add; int neg_adj = 0; - struct etsects *etsects = container_of(ptp, struct etsects, caps); + struct qoriq_ptp *qoriq_ptp = container_of(ptp, struct qoriq_ptp, caps); if (scaled_ppm < 0) { neg_adj = 1; scaled_ppm = -scaled_ppm; } - tmr_add = etsects->tmr_add; + tmr_add = qoriq_ptp->tmr_add; adj = tmr_add; /* calculate diff as adj*(scaled_ppm/65536)/1000000 @@ -303,70 +316,70 @@ static int ptp_gianfar_adjfine(struct ptp_clock_info *ptp, long scaled_ppm) tmr_add = neg_adj ? tmr_add - diff : tmr_add + diff; - gfar_write(&etsects->regs->tmr_add, tmr_add); + qoriq_write(&qoriq_ptp->regs->tmr_add, tmr_add); return 0; } -static int ptp_gianfar_adjtime(struct ptp_clock_info *ptp, s64 delta) +static int ptp_qoriq_adjtime(struct ptp_clock_info *ptp, s64 delta) { s64 now; unsigned long flags; - struct etsects *etsects = container_of(ptp, struct etsects, caps); + struct qoriq_ptp *qoriq_ptp = container_of(ptp, struct qoriq_ptp, caps); - spin_lock_irqsave(&etsects->lock, flags); + spin_lock_irqsave(&qoriq_ptp->lock, flags); - now = tmr_cnt_read(etsects); + now = tmr_cnt_read(qoriq_ptp); now += delta; - tmr_cnt_write(etsects, now); - set_fipers(etsects); + tmr_cnt_write(qoriq_ptp, now); + set_fipers(qoriq_ptp); - spin_unlock_irqrestore(&etsects->lock, flags); + spin_unlock_irqrestore(&qoriq_ptp->lock, flags); return 0; } -static int ptp_gianfar_gettime(struct ptp_clock_info *ptp, +static int ptp_qoriq_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts) { u64 ns; unsigned long flags; - struct etsects *etsects = container_of(ptp, struct etsects, caps); + struct qoriq_ptp *qoriq_ptp = container_of(ptp, struct qoriq_ptp, caps); - spin_lock_irqsave(&etsects->lock, flags); + spin_lock_irqsave(&qoriq_ptp->lock, flags); - ns = tmr_cnt_read(etsects); + ns = tmr_cnt_read(qoriq_ptp); - spin_unlock_irqrestore(&etsects->lock, flags); + spin_unlock_irqrestore(&qoriq_ptp->lock, flags); *ts = ns_to_timespec64(ns); return 0; } -static int ptp_gianfar_settime(struct ptp_clock_info *ptp, +static int ptp_qoriq_settime(struct ptp_clock_info *ptp, const struct timespec64 *ts) { u64 ns; unsigned long flags; - struct etsects *etsects = container_of(ptp, struct etsects, caps); + struct qoriq_ptp *qoriq_ptp = container_of(ptp, struct qoriq_ptp, caps); ns = timespec64_to_ns(ts); - spin_lock_irqsave(&etsects->lock, flags); + spin_lock_irqsave(&qoriq_ptp->lock, flags); - tmr_cnt_write(etsects, ns); - set_fipers(etsects); + tmr_cnt_write(qoriq_ptp, ns); + set_fipers(qoriq_ptp); - spin_unlock_irqrestore(&etsects->lock, flags); + spin_unlock_irqrestore(&qoriq_ptp->lock, flags); return 0; } -static int ptp_gianfar_enable(struct ptp_clock_info *ptp, +static int ptp_qoriq_enable(struct ptp_clock_info *ptp, struct ptp_clock_request *rq, int on) { - struct etsects *etsects = container_of(ptp, struct etsects, caps); + struct qoriq_ptp *qoriq_ptp = container_of(ptp, struct qoriq_ptp, caps); unsigned long flags; u32 bit, mask; @@ -382,25 +395,25 @@ static int ptp_gianfar_enable(struct ptp_clock_info *ptp, default: return -EINVAL; } - spin_lock_irqsave(&etsects->lock, flags); - mask = gfar_read(&etsects->regs->tmr_temask); + spin_lock_irqsave(&qoriq_ptp->lock, flags); + mask = qoriq_read(&qoriq_ptp->regs->tmr_temask); if (on) mask |= bit; else mask &= ~bit; - gfar_write(&etsects->regs->tmr_temask, mask); - spin_unlock_irqrestore(&etsects->lock, flags); + qoriq_write(&qoriq_ptp->regs->tmr_temask, mask); + spin_unlock_irqrestore(&qoriq_ptp->lock, flags); return 0; case PTP_CLK_REQ_PPS: - spin_lock_irqsave(&etsects->lock, flags); - mask = gfar_read(&etsects->regs->tmr_temask); + spin_lock_irqsave(&qoriq_ptp->lock, flags); + mask = qoriq_read(&qoriq_ptp->regs->tmr_temask); if (on) mask |= PP1EN; else mask &= ~PP1EN; - gfar_write(&etsects->regs->tmr_temask, mask); - spin_unlock_irqrestore(&etsects->lock, flags); + qoriq_write(&qoriq_ptp->regs->tmr_temask, mask); + spin_unlock_irqrestore(&qoriq_ptp->lock, flags); return 0; default: @@ -410,142 +423,141 @@ static int ptp_gianfar_enable(struct ptp_clock_info *ptp, return -EOPNOTSUPP; } -static const struct ptp_clock_info ptp_gianfar_caps = { +static const struct ptp_clock_info ptp_qoriq_caps = { .owner = THIS_MODULE, - .name = "gianfar clock", + .name = "qoriq ptp clock", .max_adj = 512000, .n_alarm = 0, .n_ext_ts = N_EXT_TS, .n_per_out = 0, .n_pins = 0, .pps = 1, - .adjfine = ptp_gianfar_adjfine, - .adjtime = ptp_gianfar_adjtime, - .gettime64 = ptp_gianfar_gettime, - .settime64 = ptp_gianfar_settime, - .enable = ptp_gianfar_enable, + .adjfine = ptp_qoriq_adjfine, + .adjtime = ptp_qoriq_adjtime, + .gettime64 = ptp_qoriq_gettime, + .settime64 = ptp_qoriq_settime, + .enable = ptp_qoriq_enable, }; -static int gianfar_ptp_probe(struct platform_device *dev) +static int qoriq_ptp_probe(struct platform_device *dev) { struct device_node *node = dev->dev.of_node; - struct etsects *etsects; + struct qoriq_ptp *qoriq_ptp; struct timespec64 now; int err = -ENOMEM; u32 tmr_ctrl; unsigned long flags; - etsects = kzalloc(sizeof(*etsects), GFP_KERNEL); - if (!etsects) + qoriq_ptp = kzalloc(sizeof(*qoriq_ptp), GFP_KERNEL); + if (!qoriq_ptp) goto no_memory; err = -ENODEV; - etsects->caps = ptp_gianfar_caps; + qoriq_ptp->caps = ptp_qoriq_caps; - if (of_property_read_u32(node, "fsl,cksel", &etsects->cksel)) - etsects->cksel = DEFAULT_CKSEL; + if (of_property_read_u32(node, "fsl,cksel", &qoriq_ptp->cksel)) + qoriq_ptp->cksel = DEFAULT_CKSEL; if (of_property_read_u32(node, - "fsl,tclk-period", &etsects->tclk_period) || + "fsl,tclk-period", &qoriq_ptp->tclk_period) || of_property_read_u32(node, - "fsl,tmr-prsc", &etsects->tmr_prsc) || + "fsl,tmr-prsc", &qoriq_ptp->tmr_prsc) || of_property_read_u32(node, - "fsl,tmr-add", &etsects->tmr_add) || + "fsl,tmr-add", &qoriq_ptp->tmr_add) || of_property_read_u32(node, - "fsl,tmr-fiper1", &etsects->tmr_fiper1) || + "fsl,tmr-fiper1", &qoriq_ptp->tmr_fiper1) || of_property_read_u32(node, - "fsl,tmr-fiper2", &etsects->tmr_fiper2) || + "fsl,tmr-fiper2", &qoriq_ptp->tmr_fiper2) || of_property_read_u32(node, - "fsl,max-adj", &etsects->caps.max_adj)) { + "fsl,max-adj", &qoriq_ptp->caps.max_adj)) { pr_err("device tree node missing required elements\n"); goto no_node; } - etsects->irq = platform_get_irq(dev, 0); + qoriq_ptp->irq = platform_get_irq(dev, 0); - if (etsects->irq < 0) { + if (qoriq_ptp->irq < 0) { pr_err("irq not in device tree\n"); goto no_node; } - if (request_irq(etsects->irq, isr, 0, DRIVER, etsects)) { + if (request_irq(qoriq_ptp->irq, isr, 0, DRIVER, qoriq_ptp)) { pr_err("request_irq failed\n"); goto no_node; } - etsects->rsrc = platform_get_resource(dev, IORESOURCE_MEM, 0); - if (!etsects->rsrc) { + qoriq_ptp->rsrc = platform_get_resource(dev, IORESOURCE_MEM, 0); + if (!qoriq_ptp->rsrc) { pr_err("no resource\n"); goto no_resource; } - if (request_resource(&iomem_resource, etsects->rsrc)) { + if (request_resource(&iomem_resource, qoriq_ptp->rsrc)) { pr_err("resource busy\n"); goto no_resource; } - spin_lock_init(&etsects->lock); + spin_lock_init(&qoriq_ptp->lock); - etsects->regs = ioremap(etsects->rsrc->start, - resource_size(etsects->rsrc)); - if (!etsects->regs) { + qoriq_ptp->regs = ioremap(qoriq_ptp->rsrc->start, + resource_size(qoriq_ptp->rsrc)); + if (!qoriq_ptp->regs) { pr_err("ioremap ptp registers failed\n"); goto no_ioremap; } getnstimeofday64(&now); - ptp_gianfar_settime(&etsects->caps, &now); + ptp_qoriq_settime(&qoriq_ptp->caps, &now); tmr_ctrl = - (etsects->tclk_period & TCLK_PERIOD_MASK) << TCLK_PERIOD_SHIFT | - (etsects->cksel & CKSEL_MASK) << CKSEL_SHIFT; + (qoriq_ptp->tclk_period & TCLK_PERIOD_MASK) << TCLK_PERIOD_SHIFT | + (qoriq_ptp->cksel & CKSEL_MASK) << CKSEL_SHIFT; - spin_lock_irqsave(&etsects->lock, flags); + spin_lock_irqsave(&qoriq_ptp->lock, flags); - gfar_write(&etsects->regs->tmr_ctrl, tmr_ctrl); - gfar_write(&etsects->regs->tmr_add, etsects->tmr_add); - gfar_write(&etsects->regs->tmr_prsc, etsects->tmr_prsc); - gfar_write(&etsects->regs->tmr_fiper1, etsects->tmr_fiper1); - gfar_write(&etsects->regs->tmr_fiper2, etsects->tmr_fiper2); - set_alarm(etsects); - gfar_write(&etsects->regs->tmr_ctrl, tmr_ctrl|FIPERST|RTPE|TE|FRD); + qoriq_write(&qoriq_ptp->regs->tmr_ctrl, tmr_ctrl); + qoriq_write(&qoriq_ptp->regs->tmr_add, qoriq_ptp->tmr_add); + qoriq_write(&qoriq_ptp->regs->tmr_prsc, qoriq_ptp->tmr_prsc); + qoriq_write(&qoriq_ptp->regs->tmr_fiper1, qoriq_ptp->tmr_fiper1); + qoriq_write(&qoriq_ptp->regs->tmr_fiper2, qoriq_ptp->tmr_fiper2); + set_alarm(qoriq_ptp); + qoriq_write(&qoriq_ptp->regs->tmr_ctrl, tmr_ctrl|FIPERST|RTPE|TE|FRD); - spin_unlock_irqrestore(&etsects->lock, flags); + spin_unlock_irqrestore(&qoriq_ptp->lock, flags); - etsects->clock = ptp_clock_register(&etsects->caps, &dev->dev); - if (IS_ERR(etsects->clock)) { - err = PTR_ERR(etsects->clock); + qoriq_ptp->clock = ptp_clock_register(&qoriq_ptp->caps, &dev->dev); + if (IS_ERR(qoriq_ptp->clock)) { + err = PTR_ERR(qoriq_ptp->clock); goto no_clock; } - gfar_phc_index = ptp_clock_index(etsects->clock); + qoriq_ptp->phc_index = ptp_clock_index(qoriq_ptp->clock); - platform_set_drvdata(dev, etsects); + platform_set_drvdata(dev, qoriq_ptp); return 0; no_clock: - iounmap(etsects->regs); + iounmap(qoriq_ptp->regs); no_ioremap: - release_resource(etsects->rsrc); + release_resource(qoriq_ptp->rsrc); no_resource: - free_irq(etsects->irq, etsects); + free_irq(qoriq_ptp->irq, qoriq_ptp); no_node: - kfree(etsects); + kfree(qoriq_ptp); no_memory: return err; } -static int gianfar_ptp_remove(struct platform_device *dev) +static int qoriq_ptp_remove(struct platform_device *dev) { - struct etsects *etsects = platform_get_drvdata(dev); + struct qoriq_ptp *qoriq_ptp = platform_get_drvdata(dev); - gfar_write(&etsects->regs->tmr_temask, 0); - gfar_write(&etsects->regs->tmr_ctrl, 0); + qoriq_write(&qoriq_ptp->regs->tmr_temask, 0); + qoriq_write(&qoriq_ptp->regs->tmr_ctrl, 0); - gfar_phc_index = -1; - ptp_clock_unregister(etsects->clock); - iounmap(etsects->regs); - release_resource(etsects->rsrc); - free_irq(etsects->irq, etsects); - kfree(etsects); + ptp_clock_unregister(qoriq_ptp->clock); + iounmap(qoriq_ptp->regs); + release_resource(qoriq_ptp->rsrc); + free_irq(qoriq_ptp->irq, qoriq_ptp); + kfree(qoriq_ptp); return 0; } @@ -556,17 +568,17 @@ static const struct of_device_id match_table[] = { }; MODULE_DEVICE_TABLE(of, match_table); -static struct platform_driver gianfar_ptp_driver = { +static struct platform_driver qoriq_ptp_driver = { .driver = { - .name = "gianfar_ptp", + .name = "ptp_qoriq", .of_match_table = match_table, }, - .probe = gianfar_ptp_probe, - .remove = gianfar_ptp_remove, + .probe = qoriq_ptp_probe, + .remove = qoriq_ptp_remove, }; -module_platform_driver(gianfar_ptp_driver); +module_platform_driver(qoriq_ptp_driver); MODULE_AUTHOR("Richard Cochran <richardcochran@gmail.com>"); -MODULE_DESCRIPTION("PTP clock using the eTSEC"); +MODULE_DESCRIPTION("PTP clock for Freescale QorIQ 1588 timer"); MODULE_LICENSE("GPL"); |