From: Phil Edworthy <PHIL.EDWORTHY@renesas.com>
Date: Tue, 29 Nov 2016 12:58:29 +0000 (+0000)
Subject: spi: cadence_qspi: Use #define for bits instead of bit shifts
X-Git-Tag: v2017.01-rc2~7^2~8
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=db37cc9c3954d5e33b218e5635e7e08ff902e3f6;p=oweals%2Fu-boot.git

spi: cadence_qspi: Use #define for bits instead of bit shifts

Most of the code already uses #defines for the bit value, rather
than the shift required to get the value. This changes the remaining
code over.

Whislt at it, fix the names of the "Rd Data Capture" register defs.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
---

diff --git a/drivers/spi/cadence_qspi_apb.c b/drivers/spi/cadence_qspi_apb.c
index 0a2963de35..b41f36b5d9 100644
--- a/drivers/spi/cadence_qspi_apb.c
+++ b/drivers/spi/cadence_qspi_apb.c
@@ -57,9 +57,9 @@
  * Controller's configuration and status register (offset from QSPI_BASE)
  ****************************************************************************/
 #define	CQSPI_REG_CONFIG			0x00
-#define	CQSPI_REG_CONFIG_CLK_POL_LSB		1
-#define	CQSPI_REG_CONFIG_CLK_PHA_LSB		2
 #define	CQSPI_REG_CONFIG_ENABLE_MASK		BIT(0)
+#define	CQSPI_REG_CONFIG_CLK_POL		BIT(1)
+#define	CQSPI_REG_CONFIG_CLK_PHA		BIT(2)
 #define	CQSPI_REG_CONFIG_DIRECT_MASK		BIT(7)
 #define	CQSPI_REG_CONFIG_DECODE_MASK		BIT(9)
 #define	CQSPI_REG_CONFIG_XIP_IMM_MASK		BIT(18)
@@ -94,10 +94,10 @@
 #define	CQSPI_REG_DELAY_TSD2D_MASK		0xFF
 #define	CQSPI_REG_DELAY_TSHSL_MASK		0xFF
 
-#define	CQSPI_READLCAPTURE			0x10
-#define	CQSPI_READLCAPTURE_BYPASS_LSB		0
-#define	CQSPI_READLCAPTURE_DELAY_LSB		1
-#define	CQSPI_READLCAPTURE_DELAY_MASK		0xF
+#define	CQSPI_REG_RD_DATA_CAPTURE		0x10
+#define	CQSPI_REG_RD_DATA_CAPTURE_BYPASS	BIT(0)
+#define	CQSPI_REG_RD_DATA_CAPTURE_DELAY_LSB	1
+#define	CQSPI_REG_RD_DATA_CAPTURE_DELAY_MASK	0xF
 
 #define	CQSPI_REG_SIZE				0x14
 #define	CQSPI_REG_SIZE_ADDRESS_LSB		0
@@ -244,20 +244,20 @@ void cadence_qspi_apb_readdata_capture(void *reg_base,
 	unsigned int reg;
 	cadence_qspi_apb_controller_disable(reg_base);
 
-	reg = readl(reg_base + CQSPI_READLCAPTURE);
+	reg = readl(reg_base + CQSPI_REG_RD_DATA_CAPTURE);
 
 	if (bypass)
-		reg |= (1 << CQSPI_READLCAPTURE_BYPASS_LSB);
+		reg |= CQSPI_REG_RD_DATA_CAPTURE_BYPASS;
 	else
-		reg &= ~(1 << CQSPI_READLCAPTURE_BYPASS_LSB);
+		reg &= ~CQSPI_REG_RD_DATA_CAPTURE_BYPASS;
 
-	reg &= ~(CQSPI_READLCAPTURE_DELAY_MASK
-		<< CQSPI_READLCAPTURE_DELAY_LSB);
+	reg &= ~(CQSPI_REG_RD_DATA_CAPTURE_DELAY_MASK
+		<< CQSPI_REG_RD_DATA_CAPTURE_DELAY_LSB);
 
-	reg |= ((delay & CQSPI_READLCAPTURE_DELAY_MASK)
-		<< CQSPI_READLCAPTURE_DELAY_LSB);
+	reg |= (delay & CQSPI_REG_RD_DATA_CAPTURE_DELAY_MASK)
+		<< CQSPI_REG_RD_DATA_CAPTURE_DELAY_LSB;
 
-	writel(reg, reg_base + CQSPI_READLCAPTURE);
+	writel(reg, reg_base + CQSPI_REG_RD_DATA_CAPTURE);
 
 	cadence_qspi_apb_controller_enable(reg_base);
 	return;
@@ -301,11 +301,12 @@ void cadence_qspi_apb_set_clk_mode(void *reg_base,
 
 	cadence_qspi_apb_controller_disable(reg_base);
 	reg = readl(reg_base + CQSPI_REG_CONFIG);
-	reg &= ~(1 << CQSPI_REG_CONFIG_CLK_POL_LSB);
-	reg &= ~(1 << CQSPI_REG_CONFIG_CLK_PHA_LSB);
+	reg &= ~(CQSPI_REG_CONFIG_CLK_POL | CQSPI_REG_CONFIG_CLK_PHA);
 
-	reg |= ((clk_pol & 0x1) << CQSPI_REG_CONFIG_CLK_POL_LSB);
-	reg |= ((clk_pha & 0x1) << CQSPI_REG_CONFIG_CLK_PHA_LSB);
+	if (clk_pol)
+		reg |= CQSPI_REG_CONFIG_CLK_POL;
+	if (clk_pha)
+		reg |= CQSPI_REG_CONFIG_CLK_PHA;
 
 	writel(reg, reg_base + CQSPI_REG_CONFIG);