[U-Boot] [Patch v3 1/3] spi: spi-mxc: add defines for clk inactive state for ECSPI
Markus Niebel
list-09_u-boot at tqsc.de
Mon Feb 17 17:33:16 CET 2014
From: Markus Niebel <Markus.Niebel at tq-group.de>
Provide define for the SCLK_CTL field of the config reg of ECSPI.
While at it, oder the defines to improve readability and make
adding more defines easier.
Signed-off-by: Markus Niebel <Markus.Niebel at tqs.de>
---
changes for v3:
- correct generation of subject prefix
changes for v2:
- split first patch into header changes (defines) and driver changes
- define only register flags that are used in pathches of this series
---
arch/arm/include/asm/arch-mx5/imx-regs.h | 7 ++++---
arch/arm/include/asm/arch-mx6/imx-regs.h | 7 ++++---
2 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/arch/arm/include/asm/arch-mx5/imx-regs.h b/arch/arm/include/asm/arch-mx5/imx-regs.h
index 4955ccf..054c680 100644
--- a/arch/arm/include/asm/arch-mx5/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx5/imx-regs.h
@@ -230,9 +230,10 @@
#define MXC_CSPICTRL_CHAN 18
/* Bit position inside CON register to be associated with SS */
-#define MXC_CSPICON_POL 4
-#define MXC_CSPICON_PHA 0
-#define MXC_CSPICON_SSPOL 12
+#define MXC_CSPICON_PHA 0 /* SCLK phase control */
+#define MXC_CSPICON_POL 4 /* SCLK polarity */
+#define MXC_CSPICON_SSPOL 12 /* SS polarity */
+#define MXC_CSPICON_CTL 20 /* inactive state of SCLK */
#define MXC_SPI_BASE_ADDRESSES \
CSPI1_BASE_ADDR, \
CSPI2_BASE_ADDR, \
diff --git a/arch/arm/include/asm/arch-mx6/imx-regs.h b/arch/arm/include/asm/arch-mx6/imx-regs.h
index f2ad6e9..3c58c01 100644
--- a/arch/arm/include/asm/arch-mx6/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx6/imx-regs.h
@@ -405,9 +405,10 @@ struct cspi_regs {
#define MXC_CSPICTRL_CHAN 18
/* Bit position inside CON register to be associated with SS */
-#define MXC_CSPICON_POL 4
-#define MXC_CSPICON_PHA 0
-#define MXC_CSPICON_SSPOL 12
+#define MXC_CSPICON_PHA 0 /* SCLK phase control */
+#define MXC_CSPICON_POL 4 /* SCLK polarity */
+#define MXC_CSPICON_SSPOL 12 /* SS polarity */
+#define MXC_CSPICON_CTL 20 /* inactive state of SCLK */
#ifdef CONFIG_MX6SL
#define MXC_SPI_BASE_ADDRESSES \
ECSPI1_BASE_ADDR, \
--
1.7.9.5
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