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From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: barebox@lists.infradead.org
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Subject: [PATCH 16/20] e1000: Add functions for register polling
Date: Sun, 17 Jan 2016 19:52:37 -0800	[thread overview]
Message-ID: <1453089161-6697-16-git-send-email-andrew.smirnov@gmail.com> (raw)
In-Reply-To: <1453089161-6697-1-git-send-email-andrew.smirnov@gmail.com>

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
---
 drivers/net/e1000/e1000.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/drivers/net/e1000/e1000.h b/drivers/net/e1000/e1000.h
index 291e64d..5e24758 100644
--- a/drivers/net/e1000/e1000.h
+++ b/drivers/net/e1000/e1000.h
@@ -2176,5 +2176,24 @@ static inline uint32_t e1000_read_reg(struct e1000_hw *hw, uint32_t reg)
 }


+static inline int e1000_poll_reg(struct e1000_hw *hw, uint32_t reg,
+				 uint32_t mask, uint32_t value,
+				 uint64_t timeout)
+{
+	const uint64_t start = get_time_ns();
+
+	do {
+		const uint32_t v = e1000_read_reg(hw, reg);
+
+		if ((v & mask) == value)
+			return 0;
+
+	} while (!is_timeout(start, timeout));
+
+	return -ETIMEDOUT;
+}
+
+#define E1000_POLL_REG(a, reg, mask, value, timeout)	\
+	e1000_poll_reg((a), E1000_##reg, (mask), (value), (timeout))

 #endif	/* _E1000_HW_H_ */
--
2.5.0

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  parent reply	other threads:[~2016-01-18  3:53 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1453089161-6697-1-git-send-email-andrew.smirnov@gmail.com>
2016-01-18  3:52 ` [PATCH 02/20] e1000: Fix a bug in e1000_detect_gig_phy Andrey Smirnov
2016-01-18  3:52 ` [PATCH 03/20] e1000: Remove unnecessary variable Andrey Smirnov
2016-01-18  3:52 ` [PATCH 04/20] e1000: Do not read same register twice Andrey Smirnov
2016-01-18  3:52 ` [PATCH 05/20] e1000: Remove unneeded i210 specific register code Andrey Smirnov
2016-01-18  3:52 ` [PATCH 06/20] e1000: Consolidate register offset fixups Andrey Smirnov
2016-01-18  3:52 ` [PATCH 07/20] e1000: Remove 'use_eewr' parameter Andrey Smirnov
2016-01-18  3:52 ` [PATCH 08/20] e1000: Remove 'page_size' Andrey Smirnov
2016-01-18  3:52 ` [PATCH 09/20] e1000: Simplify EEPROM init for e1000_80003es2lan Andrey Smirnov
2016-01-18  3:52 ` [PATCH 10/20] e1000: Simplify EEPROM init for e1000_igb Andrey Smirnov
2016-01-18  3:52 ` [PATCH 11/20] e1000: Consolidate SPI EEPROM init code Andrey Smirnov
2016-01-18  3:52 ` [PATCH 12/20] e1000: Consolidate Microwire " Andrey Smirnov
2016-01-18  3:52 ` [PATCH 13/20] e1000: Fix a bug in e1000_probe() Andrey Smirnov
2016-01-18  3:52 ` [PATCH 14/20] e1000: Remove unnecessary intialization Andrey Smirnov
2016-01-18  3:52 ` [PATCH 15/20] e1000: Refactor Flash/EEPROM reading code Andrey Smirnov
2016-01-18  3:52 ` Andrey Smirnov [this message]
2016-01-19  8:21   ` [PATCH 16/20] e1000: Add functions for register polling Sascha Hauer
2016-01-19 18:53     ` Andrey Smirnov
2016-01-20  7:32       ` Sascha Hauer
2016-01-18  3:52 ` [PATCH 17/20] e1000: Properly release SW_FW_SYNC semaphore bits Andrey Smirnov
2016-01-18  3:52 ` [PATCH 18/20] e1000: Add EEPROM access locking for i210 Andrey Smirnov
2016-01-18  3:52 ` [PATCH 19/20] e1000: Expose i210's external flash as MTD Andrey Smirnov
2016-01-18  3:52 ` [PATCH 20/20] e1000: Expose i210's iNVM as a cdev Andrey Smirnov

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