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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>
This commit is contained in:
Yangbo Lu 2018-05-25 12:40:34 +08:00 committed by David S. Miller
parent b1d2e4e03f
commit ceefc71d4c
4 changed files with 174 additions and 162 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/ethernet/freescale/Makefile
View File

@ -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

14
drivers/ptp/Kconfig
View File

@ -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"

1
drivers/ptp/Makefile
View File

@ -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

320
drivers/net/ethernet/freescale/gianfar_ptp.c → drivers/ptp/ptp_qoriq.c
View File

@ -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");