diff options
author | Yangbo Lu <yangbo.lu@nxp.com> | 2019-02-12 12:23:59 +0800 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2019-02-12 12:58:48 -0500 |
commit | f038ddf25b80be90e1af9439935bdb66fdbf5e28 (patch) | |
tree | 654ca5a29e993efe5c95b3f7d587f4d4c6f3d0f9 /drivers/ptp | |
parent | ff54571a747bc1fc8e132ef9c512451ec6de3336 (diff) | |
download | linux-f038ddf25b80be90e1af9439935bdb66fdbf5e28.tar.bz2 |
ptp_qoriq: add little enadian support
There is QorIQ 1588 timer IP block on the new ENETC Ethernet
controller. However it uses little endian mode which is different
with before. This patch is to add little endian support for the
driver by using "little-endian" dts node property.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/ptp')
-rw-r--r-- | drivers/ptp/ptp_qoriq.c | 69 | ||||
-rw-r--r-- | drivers/ptp/ptp_qoriq_debugfs.c | 12 |
2 files changed, 45 insertions, 36 deletions
diff --git a/drivers/ptp/ptp_qoriq.c b/drivers/ptp/ptp_qoriq.c index db4f929ea4e9..ed4dc398c57b 100644 --- a/drivers/ptp/ptp_qoriq.c +++ b/drivers/ptp/ptp_qoriq.c @@ -43,8 +43,8 @@ static u64 tmr_cnt_read(struct ptp_qoriq *ptp_qoriq) 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; @@ -57,8 +57,8 @@ static void tmr_cnt_write(struct ptp_qoriq *ptp_qoriq, u64 ns) 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 ptp_qoriq->lock. */ @@ -73,8 +73,8 @@ static void set_alarm(struct ptp_qoriq *ptp_qoriq) 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 ptp_qoriq->lock. */ @@ -83,8 +83,8 @@ static void set_fipers(struct ptp_qoriq *ptp_qoriq) struct ptp_qoriq_registers *regs = &ptp_qoriq->regs; set_alarm(ptp_qoriq); - qoriq_write(®s->fiper_regs->tmr_fiper1, ptp_qoriq->tmr_fiper1); - qoriq_write(®s->fiper_regs->tmr_fiper2, ptp_qoriq->tmr_fiper2); + 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 ptp_qoriq *ptp_qoriq, int index, @@ -115,8 +115,8 @@ static int extts_clean_up(struct ptp_qoriq *ptp_qoriq, 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; @@ -124,7 +124,7 @@ static int extts_clean_up(struct ptp_qoriq *ptp_qoriq, int index, ptp_clock_event(ptp_qoriq->clock, &event); } - stat = qoriq_read(®s->ctrl_regs->tmr_stat); + stat = ptp_qoriq->read(®s->ctrl_regs->tmr_stat); } while (ptp_qoriq->extts_fifo_support && (stat & valid)); return 0; @@ -144,8 +144,8 @@ irqreturn_t ptp_qoriq_isr(int irq, void *priv) 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(&ptp_qoriq->lock); @@ -173,14 +173,14 @@ irqreturn_t ptp_qoriq_isr(int irq, void *priv) 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); + 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(&ptp_qoriq->lock); - mask = qoriq_read(®s->ctrl_regs->tmr_temask); + mask = ptp_qoriq->read(®s->ctrl_regs->tmr_temask); mask &= ~ALM2EN; - qoriq_write(®s->ctrl_regs->tmr_temask, mask); + ptp_qoriq->write(®s->ctrl_regs->tmr_temask, mask); spin_unlock(&ptp_qoriq->lock); ptp_qoriq->alarm_value = 0; ptp_qoriq->alarm_interval = 0; @@ -194,7 +194,7 @@ irqreturn_t ptp_qoriq_isr(int irq, void *priv) } 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; @@ -229,7 +229,7 @@ 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; } @@ -326,15 +326,15 @@ int ptp_qoriq_enable(struct ptp_clock_info *ptp, 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(&ptp_qoriq->lock, flags); return 0; @@ -496,6 +496,14 @@ int ptp_qoriq_init(struct ptp_qoriq *ptp_qoriq, void __iomem *base, return -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; + } + if (of_device_is_compatible(node, "fsl,fman-ptp-timer")) { ptp_qoriq->regs.ctrl_regs = base + FMAN_CTRL_REGS_OFFSET; ptp_qoriq->regs.alarm_regs = base + FMAN_ALARM_REGS_OFFSET; @@ -519,13 +527,14 @@ int ptp_qoriq_init(struct ptp_qoriq *ptp_qoriq, void __iomem *base, spin_lock_irqsave(&ptp_qoriq->lock, flags); regs = &ptp_qoriq->regs; - qoriq_write(®s->ctrl_regs->tmr_ctrl, tmr_ctrl); - qoriq_write(®s->ctrl_regs->tmr_add, ptp_qoriq->tmr_add); - qoriq_write(®s->ctrl_regs->tmr_prsc, ptp_qoriq->tmr_prsc); - qoriq_write(®s->fiper_regs->tmr_fiper1, ptp_qoriq->tmr_fiper1); - qoriq_write(®s->fiper_regs->tmr_fiper2, ptp_qoriq->tmr_fiper2); + 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); - qoriq_write(®s->ctrl_regs->tmr_ctrl, tmr_ctrl|FIPERST|RTPE|TE|FRD); + ptp_qoriq->write(®s->ctrl_regs->tmr_ctrl, + tmr_ctrl|FIPERST|RTPE|TE|FRD); spin_unlock_irqrestore(&ptp_qoriq->lock, flags); @@ -543,8 +552,8 @@ void ptp_qoriq_free(struct ptp_qoriq *ptp_qoriq) { struct ptp_qoriq_registers *regs = &ptp_qoriq->regs; - qoriq_write(®s->ctrl_regs->tmr_temask, 0); - qoriq_write(®s->ctrl_regs->tmr_ctrl, 0); + 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); diff --git a/drivers/ptp/ptp_qoriq_debugfs.c b/drivers/ptp/ptp_qoriq_debugfs.c index 3a70daf03727..e8dddcedf288 100644 --- a/drivers/ptp/ptp_qoriq_debugfs.c +++ b/drivers/ptp/ptp_qoriq_debugfs.c @@ -11,7 +11,7 @@ static int ptp_qoriq_fiper1_lpbk_get(void *data, u64 *val) 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; @@ -23,13 +23,13 @@ static int ptp_qoriq_fiper1_lpbk_set(void *data, u64 val) 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; } @@ -42,7 +42,7 @@ static int ptp_qoriq_fiper2_lpbk_get(void *data, u64 *val) 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; @@ -54,13 +54,13 @@ static int ptp_qoriq_fiper2_lpbk_set(void *data, u64 val) 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; } |