diff mbox

[OpenWrt-Devel,1/8] ramips: complete mt7621 spi register define

Message ID 1444535674-3117-1-git-send-email-igvtee@gmail.com
State Superseded
Headers show

Commit Message

Mingyu Li Oct. 11, 2015, 3:54 a.m. UTC
Signed-off-by: Michael Lee <igvtee@gmail.com>
---
 ...0061-SPI-ralink-add-mt7621-SoC-spi-driver.patch | 113 ++++++++++++++++-----
 1 file changed, 85 insertions(+), 28 deletions(-)
diff mbox

Patch

diff --git a/target/linux/ramips/patches-3.18/0061-SPI-ralink-add-mt7621-SoC-spi-driver.patch b/target/linux/ramips/patches-3.18/0061-SPI-ralink-add-mt7621-SoC-spi-driver.patch
index 589c67e..a412cf4 100644
--- a/target/linux/ramips/patches-3.18/0061-SPI-ralink-add-mt7621-SoC-spi-driver.patch
+++ b/target/linux/ramips/patches-3.18/0061-SPI-ralink-add-mt7621-SoC-spi-driver.patch
@@ -1,6 +1,6 @@ 
 --- a/drivers/spi/Kconfig
 +++ b/drivers/spi/Kconfig
-@@ -439,6 +439,12 @@
+@@ -439,6 +439,12 @@ config SPI_RT2880
  	help
  	  This selects a driver for the Ralink RT288x/RT305x SPI Controller.
  
@@ -15,7 +15,7 @@ 
  	depends on ARCH_S3C24XX
 --- a/drivers/spi/Makefile
 +++ b/drivers/spi/Makefile
-@@ -46,6 +46,7 @@
+@@ -46,6 +46,7 @@ obj-$(CONFIG_SPI_LM70_LLP)		+= spi-lm70l
  obj-$(CONFIG_SPI_MPC512x_PSC)		+= spi-mpc512x-psc.o
  obj-$(CONFIG_SPI_MPC52xx_PSC)		+= spi-mpc52xx-psc.o
  obj-$(CONFIG_SPI_MPC52xx)		+= spi-mpc52xx.o
@@ -25,7 +25,7 @@ 
  obj-$(CONFIG_SPI_OC_TINY)		+= spi-oc-tiny.o
 --- /dev/null
 +++ b/drivers/spi/spi-mt7621.c
-@@ -0,0 +1,480 @@
+@@ -0,0 +1,537 @@
 +/*
 + * spi-mt7621.c -- MediaTek MT7621 SPI controller driver
 + *
@@ -56,34 +56,91 @@ 
 +
 +#include <ralink_regs.h>
 +
-+#define SPI_BPW_MASK(bits) BIT((bits) - 1)
-+
 +#define DRIVER_NAME			"spi-mt7621"
 +/* in usec */
 +#define RALINK_SPI_WAIT_MAX_LOOP	2000
 +
-+/* SPISTAT register bit field */
-+#define SPISTAT_BUSY			BIT(0)
-+
 +#define MT7621_SPI_TRANS	0x00
-+#define SPITRANS_BUSY		BIT(16)
-+
 +#define MT7621_SPI_OPCODE	0x04
 +#define MT7621_SPI_DATA0	0x08
 +#define MT7621_SPI_DATA4	0x18
-+#define SPI_CTL_TX_RX_CNT_MASK	0xff
-+#define SPI_CTL_START		BIT(8)
-+
-+#define MT7621_SPI_POLAR	0x38
 +#define MT7621_SPI_MASTER	0x28
 +#define MT7621_SPI_MOREBUF	0x2c
++#define MT7621_SPI_QUEUE_CTL	0x30
++#define MT7621_SPI_STATUS	0x34
++#define MT7621_SPI_POLAR	0x38
 +#define MT7621_SPI_SPACE	0x3c
 +
-+#define MT7621_CPHA		BIT(5)
-+#define MT7621_CPOL		BIT(4)
-+#define MT7621_LSB_FIRST	BIT(3)
-+
-+#define RT2880_SPI_MODE_BITS	(SPI_CPOL | SPI_CPHA | SPI_LSB_FIRST | SPI_CS_HIGH)
++/* MT7621_SPI_TRANS */
++#define SPITRANS_ADDREXT_MASK		0xff
++#define SPITRANS_ADDREXT_OFFSET		24
++#define SPITRANS_ADDRSIZE_MASK		0x3
++#define SPITRANS_ADDRSIZE_OFFSET	19
++#define SPITRANS_BUSY			BIT(16)
++#define SPITRANS_START			BIT(8)
++#define SPITRANS_BYTECNT_MASK		0xf
++#define SPITRANS_MISO_OFFSET		4
++#define SPITRANS_MOSI_OFFSET		0
++
++/* MT7621_SPI_OPCODE */
++#define SPIOP_MB_OPCODE_OFFSET		24
++#define SPIOP_MB_ADDR_MASK		0xffffff
++
++/* MT7621_SPI_MASTER */
++#define SPIMASTER_CS_MASK		0x7
++#define SPIMASTER_CS_OFFSET		29
++#define SPIMASTER_CLK_HIGH		BIT(28)
++#define SPIMASTER_CLKSEL_MASK		0xfff
++#define SPIMASTER_CLKSEL_OFFSET		16
++#define SPIMASTER_CSDSEL_MASK		0x1f
++#define SPIMASTER_CSDSEL_OFFSET		11
++#define SPIMASTER_FULL_DUPLEX		BIT(10)
++#define SPIMASTER_INTR_ENABLE		BIT(9)
++#define SPIMASTER_START_6CLK		BIT(8)
++#define SPIMASTER_PREFETCH_ENABLE	BIT(7)
++#define SPIMASTER_BIDIR_MODE		BIT(6)
++#define SPIMASTER_CPHA			BIT(5)
++#define SPIMASTER_CPOL			BIT(4)
++#define SPIMASTER_LSB			BIT(3)
++#define SPIMASTER_MB_MODE		BIT(2)
++#define SPIMASTER_SERIAL_MASK		0x3
++
++/* MT7621_SPI_MOREBUF */
++#define SPIMB_CMD_MASK			0x3f
++#define SPIMB_CMD_OFFSET		24
++#define SPIMB_MISO_MASK			0x1ff
++#define SPIMB_MISO_OFFSET		12
++#define SPIMB_MOSI_MASK			0x1ff
++#define SPIMB_MOSI_OFFSET		0
++
++/* MT7621_SPI_QUEUE_CTL */
++#define SPIQCTL_PAGE_MASK		0x3f
++#define SPIQCTL_PAGE_OFFSET		26
++#define SPIQCTL_BUSY			BIT(12)
++#define SPIQCTL_ADDRSIZE_MASK		0x3
++#define SPIQCTL_ADDRSIZER_OFFSET	10
++#define SPIQCTL_ADDRSIZE_OFFSET		8
++#define SPIQCTL_MOSI_MASK		0xf
++#define SPIQCTL_FASTSEL_MASK		0x7
++
++/* MT7621_SPI_STATUS */
++#define SPISTA_MODE_MASK		0x3
++#define SPISTA_MODE_OFFSET		4
++#define SPISTA_OK			BIT(0)
++
++/* MT7621_SPI_POLAR */
++#define SPIPOL_CSPOL_MASK		0xff
++#define SPIPOL_CSPOL_OFFSET		0
++#define SPIPOL_CSPOL_HIGH		1
++
++/* define MT7621_SPI_SPACE */
++#define SPISPA_CS_MASK			0x7
++#define SPISPA_CS_OFFSET		12
++#define SPISPA_CLKSEL_MASK		0xfff
++#define SPISPA_CLKSEL_OFFSET		0
++
++#define MT7621_SPI_MODE_BITS	(SPI_CPOL | SPI_CPHA | SPI_LSB_FIRST | \
++		SPI_CS_HIGH)
 +
 +struct mt7621_spi;
 +
@@ -161,22 +218,22 @@ 
 +	reg |= (rate - 2) << 16;
 +	rs->speed = speed;
 +
-+	reg &= ~MT7621_LSB_FIRST;
++	reg &= ~SPIMASTER_LSB;
 +	if (spi->mode & SPI_LSB_FIRST)
-+		reg |= MT7621_LSB_FIRST;
++		reg |= SPIMASTER_LSB;
 +
-+	reg &= ~(MT7621_CPHA | MT7621_CPOL);
++	reg &= ~(SPIMASTER_CPHA | SPIMASTER_CPOL);
 +	switch(spi->mode & (SPI_CPOL | SPI_CPHA)) {
 +		case SPI_MODE_0:
 +			break;
 +		case SPI_MODE_1:
-+			reg |= MT7621_CPHA;
++			reg |= SPIMASTER_CPHA;
 +			break;
 +		case SPI_MODE_2:
-+			reg |= MT7621_CPOL;
++			reg |= SPIMASTER_CPOL;
 +			break;
 +		case SPI_MODE_3:
-+			reg |= MT7621_CPOL | MT7621_CPHA;
++			reg |= SPIMASTER_CPOL | SPIMASTER_CPHA;
 +			break;
 +	}
 +	mt7621_spi_write(rs, MT7621_SPI_MASTER, reg);
@@ -261,7 +318,7 @@ 
 +	mt7621_spi_set_cs(spi, 1);
 +
 +	val = mt7621_spi_read(rs, MT7621_SPI_TRANS);
-+	val |= SPI_CTL_START;
++	val |= SPITRANS_START;
 +	mt7621_spi_write(rs, MT7621_SPI_TRANS, val);
 +
 +	mt7621_spi_wait_till_ready(spi);
@@ -346,7 +403,7 @@ 
 +	mt7621_spi_set_cs(spi, 1);
 +
 +	val = mt7621_spi_read(rs, MT7621_SPI_TRANS);
-+	val |= SPI_CTL_START;
++	val |= SPITRANS_START;
 +	mt7621_spi_write(rs, MT7621_SPI_TRANS, val);
 +
 +	mt7621_spi_wait_till_ready(spi);
@@ -449,7 +506,7 @@ 
 +		return -ENOMEM;
 +	}
 +
-+	master->mode_bits = RT2880_SPI_MODE_BITS;
++	master->mode_bits = MT7621_SPI_MODE_BITS;
 +
 +	master->setup = mt7621_spi_setup;
 +	master->transfer_one_message = mt7621_spi_transfer_one_message;