[U-Boot] [PATCH v2] dm: spi: Convert Freescale QSPI driver to driver model

* [U-Boot] [PATCH v2] dm: spi: Convert Freescale QSPI driver to driver model
@ 2015-04-01  3:10 Haikun Wang
  2015-04-01  7:19 ` Peng Fan
  0 siblings, 1 reply; 4+ messages in thread
From: Haikun Wang @ 2015-04-01  3:10 UTC (permalink / raw)
  To: u-boot

Move the Freescale QSPI driver over to driver model.

Signed-off-by: Haikun Wang <Haikun.Wang@freescale.com>
Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
---

Changes in v2:
- Fix build fail on mx6sxsabresd_spl issue
- Add configure regmap endian in NO-DM model

Changes in v1: None.

 drivers/spi/fsl_qspi.c | 985 ++++++++++++++++++++++++++++++++-----------------
 1 file changed, 656 insertions(+), 329 deletions(-)

diff --git a/drivers/spi/fsl_qspi.c b/drivers/spi/fsl_qspi.c
index 5e0b069..868df5f 100644
--- a/drivers/spi/fsl_qspi.c
+++ b/drivers/spi/fsl_qspi.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2014 Freescale Semiconductor, Inc.
+ * Copyright 2013-2015 Freescale Semiconductor, Inc.
  *
  * Freescale Quad Serial Peripheral Interface (QSPI) driver
  *
@@ -11,8 +11,12 @@
 #include <spi.h>
 #include <asm/io.h>
 #include <linux/sizes.h>
+#include <dm.h>
+#include <errno.h>
 #include "fsl_qspi.h"
 
+DECLARE_GLOBAL_DATA_PTR;
+
 #define RX_BUFFER_SIZE		0x80
 #ifdef CONFIG_MX6SX
 #define TX_BUFFER_SIZE		0x200
@@ -63,35 +67,85 @@
 #define QSPI_CMD_PP_4B		0x12    /* Page program (up to 256 bytes) */
 #define QSPI_CMD_SE_4B		0xdc    /* Sector erase (usually 64KiB) */
 
-#ifdef CONFIG_SYS_FSL_QSPI_LE
-#define qspi_read32		in_le32
-#define qspi_write32		out_le32
-#elif defined(CONFIG_SYS_FSL_QSPI_BE)
-#define qspi_read32		in_be32
-#define qspi_write32		out_be32
-#endif
+/* fsl_qspi_platdata flags */
+#define QSPI_FLAG_REGMAP_ENDIAN_BIG	(1 << 0)
 
-static unsigned long spi_bases[] = {
-	QSPI0_BASE_ADDR,
-#ifdef CONFIG_MX6SX
-	QSPI1_BASE_ADDR,
-#endif
-};
+/* default SCK frequency, unit: HZ */
+#define FSL_QSPI_DEFAULT_SCK_FREQ	50000000
 
-static unsigned long amba_bases[] = {
-	QSPI0_AMBA_BASE,
-#ifdef CONFIG_MX6SX
-	QSPI1_AMBA_BASE,
+/* QSPI max chipselect signals number */
+#define FSL_QSPI_MAX_CHIPSELECT_NUM     4
+
+#ifdef CONFIG_DM_SPI
+/**
+ * struct fsl_qspi_platdata - platform data for Freescale QSPI
+ *
+ * @flags: Flags for QSPI QSPI_FLAG_...
+ * @speed_hz: Default SCK frequency
+ * @reg_base: Base address of QSPI registers
+ * @amba_base: Base address of QSPI memory mapping
+ * @amba_total_size: size of QSPI memory mapping
+ * @flash_num: Number of active slave devices
+ * @num_chipselect: Number of QSPI chipselect signals
+ */
+struct fsl_qspi_platdata {
+	u32 flags;
+	u32 speed_hz;
+	u32 reg_base;
+	u32 amba_base;
+	u32 amba_total_size;
+	u32 flash_num;
+	u32 num_chipselect;
+};
 #endif
+
+/**
+ * struct fsl_qspi_priv - private data for Freescale QSPI
+ *
+ * @flags: Flags for QSPI QSPI_FLAG_...
+ * @bus_clk: QSPI input clk frequency
+ * @speed_hz: Default SCK frequency
+ * @cur_seqid: current LUT table sequence id
+ * @sf_addr: flash access offset
+ * @amba_base: Base address of QSPI memory mapping of every CS
+ * @amba_total_size: size of QSPI memory mapping
+ * @cur_amba_base: Base address of QSPI memory mapping of current CS
+ * @flash_num: Number of active slave devices
+ * @num_chipselect: Number of QSPI chipselect signals
+ * @regs: Point to QSPI register structure for I/O access
+ */
+struct fsl_qspi_priv {
+	u32 flags;
+	u32 bus_clk;
+	u32 speed_hz;
+	u32 cur_seqid;
+	u32 sf_addr;
+	u32 amba_base[FSL_QSPI_MAX_CHIPSELECT_NUM];
+	u32 amba_total_size;
+	u32 cur_amba_base;
+	u32 flash_num;
+	u32 num_chipselect;
+	struct fsl_qspi_regs *regs;
 };
 
+#ifndef CONFIG_DM_SPI
 struct fsl_qspi {
 	struct spi_slave slave;
-	unsigned long reg_base;
-	unsigned long amba_base;
-	u32 sf_addr;
-	u8 cur_seqid;
+	struct fsl_qspi_priv priv;
 };
+#endif
+
+static u32 qspi_read32(u32 flags, u32 *addr)
+{
+	return flags & QSPI_FLAG_REGMAP_ENDIAN_BIG ?
+		in_be32(addr) : in_le32(addr);
+}
+
+static void qspi_write32(u32 flags, u32 *addr, u32 val)
+{
+	flags & QSPI_FLAG_REGMAP_ENDIAN_BIG ?
+		out_be32(addr, val) : out_le32(addr, val);
+}
 
 /* QSPI support swapping the flash read/write data
  * in hardware for LS102xA, but not for VF610 */
@@ -104,131 +158,135 @@ static inline u32 qspi_endian_xchg(u32 data)
 #endif
 }
 
-static inline struct fsl_qspi *to_qspi_spi(struct spi_slave *slave)
-{
-	return container_of(slave, struct fsl_qspi, slave);
-}
-
-static void qspi_set_lut(struct fsl_qspi *qspi)
+static void qspi_set_lut(struct fsl_qspi_priv *priv)
 {
-	struct fsl_qspi_regs *regs = (struct fsl_qspi_regs *)qspi->reg_base;
+	struct fsl_qspi_regs *regs = priv->regs;
 	u32 lut_base;
 
 	/* Unlock the LUT */
-	qspi_write32(&regs->lutkey, LUT_KEY_VALUE);
-	qspi_write32(&regs->lckcr, QSPI_LCKCR_UNLOCK);
+	qspi_write32(priv->flags, &regs->lutkey, LUT_KEY_VALUE);
+	qspi_write32(priv->flags, &regs->lckcr, QSPI_LCKCR_UNLOCK);
 
 	/* Write Enable */
 	lut_base = SEQID_WREN * 4;
-	qspi_write32(&regs->lut[lut_base], OPRND0(QSPI_CMD_WREN) |
+	qspi_write32(priv->flags, &regs->lut[lut_base], OPRND0(QSPI_CMD_WREN) |
 		PAD0(LUT_PAD1) | INSTR0(LUT_CMD));
-	qspi_write32(&regs->lut[lut_base + 1], 0);
-	qspi_write32(&regs->lut[lut_base + 2], 0);
-	qspi_write32(&regs->lut[lut_base + 3], 0);
+	qspi_write32(priv->flags, &regs->lut[lut_base + 1], 0);
+	qspi_write32(priv->flags, &regs->lut[lut_base + 2], 0);
+	qspi_write32(priv->flags, &regs->lut[lut_base + 3], 0);
 
 	/* Fast Read */
 	lut_base = SEQID_FAST_READ * 4;
 #ifdef CONFIG_SPI_FLASH_BAR
-	qspi_write32(&regs->lut[lut_base], OPRND0(QSPI_CMD_FAST_READ) |
-		     PAD0(LUT_PAD1) | INSTR0(LUT_CMD) | OPRND1(ADDR24BIT) |
+	qspi_write32(priv->flags, &regs->lut[lut_base],
+		     OPRND0(QSPI_CMD_FAST_READ) | PAD0(LUT_PAD1) |
+		     INSTR0(LUT_CMD) | OPRND1(ADDR24BIT) |
 		     PAD1(LUT_PAD1) | INSTR1(LUT_ADDR));
 #else
 	if (FSL_QSPI_FLASH_SIZE  <= SZ_16M)
-		qspi_write32(&regs->lut[lut_base], OPRND0(QSPI_CMD_FAST_READ) |
-			PAD0(LUT_PAD1) | INSTR0(LUT_CMD) | OPRND1(ADDR24BIT) |
-			PAD1(LUT_PAD1) | INSTR1(LUT_ADDR));
+		qspi_write32(priv->flags, &regs->lut[lut_base],
+			     OPRND0(QSPI_CMD_FAST_READ) | PAD0(LUT_PAD1) |
+			     INSTR0(LUT_CMD) | OPRND1(ADDR24BIT) |
+			     PAD1(LUT_PAD1) | INSTR1(LUT_ADDR));
 	else
-		qspi_write32(&regs->lut[lut_base],
+		qspi_write32(priv->flags, &regs->lut[lut_base],
 			     OPRND0(QSPI_CMD_FAST_READ_4B) |
 			     PAD0(LUT_PAD1) | INSTR0(LUT_CMD) |
 			     OPRND1(ADDR32BIT) | PAD1(LUT_PAD1) |
 			     INSTR1(LUT_ADDR));
 #endif
-	qspi_write32(&regs->lut[lut_base + 1], OPRND0(8) | PAD0(LUT_PAD1) |
-		INSTR0(LUT_DUMMY) | OPRND1(RX_BUFFER_SIZE) | PAD1(LUT_PAD1) |
-		INSTR1(LUT_READ));
-	qspi_write32(&regs->lut[lut_base + 2], 0);
-	qspi_write32(&regs->lut[lut_base + 3], 0);
+	qspi_write32(priv->flags, &regs->lut[lut_base + 1],
+		     OPRND0(8) | PAD0(LUT_PAD1) | INSTR0(LUT_DUMMY) |
+		     OPRND1(RX_BUFFER_SIZE) | PAD1(LUT_PAD1) |
+		     INSTR1(LUT_READ));
+	qspi_write32(priv->flags, &regs->lut[lut_base + 2], 0);
+	qspi_write32(priv->flags, &regs->lut[lut_base + 3], 0);
 
 	/* Read Status */
 	lut_base = SEQID_RDSR * 4;
-	qspi_write32(&regs->lut[lut_base], OPRND0(QSPI_CMD_RDSR) |
+	qspi_write32(priv->flags, &regs->lut[lut_base], OPRND0(QSPI_CMD_RDSR) |
 		PAD0(LUT_PAD1) | INSTR0(LUT_CMD) | OPRND1(1) |
 		PAD1(LUT_PAD1) | INSTR1(LUT_READ));
-	qspi_write32(&regs->lut[lut_base + 1], 0);
-	qspi_write32(&regs->lut[lut_base + 2], 0);
-	qspi_write32(&regs->lut[lut_base + 3], 0);
+	qspi_write32(priv->flags, &regs->lut[lut_base + 1], 0);
+	qspi_write32(priv->flags, &regs->lut[lut_base + 2], 0);
+	qspi_write32(priv->flags, &regs->lut[lut_base + 3], 0);
 
 	/* Erase a sector */
 	lut_base = SEQID_SE * 4;
 #ifdef CONFIG_SPI_FLASH_BAR
-	qspi_write32(&regs->lut[lut_base], OPRND0(QSPI_CMD_SE) |
+	qspi_write32(priv->flags, &regs->lut[lut_base], OPRND0(QSPI_CMD_SE) |
 		     PAD0(LUT_PAD1) | INSTR0(LUT_CMD) | OPRND1(ADDR24BIT) |
 		     PAD1(LUT_PAD1) | INSTR1(LUT_ADDR));
 #else
 	if (FSL_QSPI_FLASH_SIZE  <= SZ_16M)
-		qspi_write32(&regs->lut[lut_base], OPRND0(QSPI_CMD_SE) |
-			PAD0(LUT_PAD1) | INSTR0(LUT_CMD) | OPRND1(ADDR24BIT) |
-			PAD1(LUT_PAD1) | INSTR1(LUT_ADDR));
+		qspi_write32(priv->flags, &regs->lut[lut_base],
+			     OPRND0(QSPI_CMD_SE) | PAD0(LUT_PAD1) |
+			     INSTR0(LUT_CMD) | OPRND1(ADDR24BIT) |
+			     PAD1(LUT_PAD1) | INSTR1(LUT_ADDR));
 	else
-		qspi_write32(&regs->lut[lut_base], OPRND0(QSPI_CMD_SE_4B) |
-			PAD0(LUT_PAD1) | INSTR0(LUT_CMD) | OPRND1(ADDR32BIT) |
-			PAD1(LUT_PAD1) | INSTR1(LUT_ADDR));
+		qspi_write32(priv->flags, &regs->lut[lut_base],
+			     OPRND0(QSPI_CMD_SE_4B) | PAD0(LUT_PAD1) |
+			     INSTR0(LUT_CMD) | OPRND1(ADDR32BIT) |
+			     PAD1(LUT_PAD1) | INSTR1(LUT_ADDR));
 #endif
-	qspi_write32(&regs->lut[lut_base + 1], 0);
-	qspi_write32(&regs->lut[lut_base + 2], 0);
-	qspi_write32(&regs->lut[lut_base + 3], 0);
+	qspi_write32(priv->flags, &regs->lut[lut_base + 1], 0);
+	qspi_write32(priv->flags, &regs->lut[lut_base + 2], 0);
+	qspi_write32(priv->flags, &regs->lut[lut_base + 3], 0);
 
 	/* Erase the whole chip */
 	lut_base = SEQID_CHIP_ERASE * 4;
-	qspi_write32(&regs->lut[lut_base], OPRND0(QSPI_CMD_CHIP_ERASE) |
-		PAD0(LUT_PAD1) | INSTR0(LUT_CMD));
-	qspi_write32(&regs->lut[lut_base + 1], 0);
-	qspi_write32(&regs->lut[lut_base + 2], 0);
-	qspi_write32(&regs->lut[lut_base + 3], 0);
+	qspi_write32(priv->flags, &regs->lut[lut_base],
+		     OPRND0(QSPI_CMD_CHIP_ERASE) |
+		     PAD0(LUT_PAD1) | INSTR0(LUT_CMD));
+	qspi_write32(priv->flags, &regs->lut[lut_base + 1], 0);
+	qspi_write32(priv->flags, &regs->lut[lut_base + 2], 0);
+	qspi_write32(priv->flags, &regs->lut[lut_base + 3], 0);
 
 	/* Page Program */
 	lut_base = SEQID_PP * 4;
 #ifdef CONFIG_SPI_FLASH_BAR
-	qspi_write32(&regs->lut[lut_base], OPRND0(QSPI_CMD_PP) |
+	qspi_write32(priv->flags, &regs->lut[lut_base], OPRND0(QSPI_CMD_PP) |
 		     PAD0(LUT_PAD1) | INSTR0(LUT_CMD) | OPRND1(ADDR24BIT) |
 		     PAD1(LUT_PAD1) | INSTR1(LUT_ADDR));
 #else
 	if (FSL_QSPI_FLASH_SIZE  <= SZ_16M)
-		qspi_write32(&regs->lut[lut_base], OPRND0(QSPI_CMD_PP) |
-			PAD0(LUT_PAD1) | INSTR0(LUT_CMD) | OPRND1(ADDR24BIT) |
-			PAD1(LUT_PAD1) | INSTR1(LUT_ADDR));
+		qspi_write32(priv->flags, &regs->lut[lut_base],
+			     OPRND0(QSPI_CMD_PP) | PAD0(LUT_PAD1) |
+			     INSTR0(LUT_CMD) | OPRND1(ADDR24BIT) |
+			     PAD1(LUT_PAD1) | INSTR1(LUT_ADDR));
 	else
-		qspi_write32(&regs->lut[lut_base], OPRND0(QSPI_CMD_PP_4B) |
-			PAD0(LUT_PAD1) | INSTR0(LUT_CMD) | OPRND1(ADDR32BIT) |
-			PAD1(LUT_PAD1) | INSTR1(LUT_ADDR));
+		qspi_write32(priv->flags, &regs->lut[lut_base],
+			     OPRND0(QSPI_CMD_PP_4B) | PAD0(LUT_PAD1) |
+			     INSTR0(LUT_CMD) | OPRND1(ADDR32BIT) |
+			     PAD1(LUT_PAD1) | INSTR1(LUT_ADDR));
 #endif
 #ifdef CONFIG_MX6SX
 	/*
 	 * To MX6SX, OPRND0(TX_BUFFER_SIZE) can not work correctly.
 	 * So, Use IDATSZ in IPCR to determine the size and here set 0.
 	 */
-	qspi_write32(&regs->lut[lut_base + 1], OPRND0(0) |
+	qspi_write32(priv->flags, &regs->lut[lut_base + 1], OPRND0(0) |
 		     PAD0(LUT_PAD1) | INSTR0(LUT_WRITE));
 #else
-	qspi_write32(&regs->lut[lut_base + 1], OPRND0(TX_BUFFER_SIZE) |
-		PAD0(LUT_PAD1) | INSTR0(LUT_WRITE));
+	qspi_write32(priv->flags, &regs->lut[lut_base + 1],
+		     OPRND0(TX_BUFFER_SIZE) |
+		     PAD0(LUT_PAD1) | INSTR0(LUT_WRITE));
 #endif
-	qspi_write32(&regs->lut[lut_base + 2], 0);
-	qspi_write32(&regs->lut[lut_base + 3], 0);
+	qspi_write32(priv->flags, &regs->lut[lut_base + 2], 0);
+	qspi_write32(priv->flags, &regs->lut[lut_base + 3], 0);
 
 	/* READ ID */
 	lut_base = SEQID_RDID * 4;
-	qspi_write32(&regs->lut[lut_base], OPRND0(QSPI_CMD_RDID) |
+	qspi_write32(priv->flags, &regs->lut[lut_base], OPRND0(QSPI_CMD_RDID) |
 		PAD0(LUT_PAD1) | INSTR0(LUT_CMD) | OPRND1(8) |
 		PAD1(LUT_PAD1) | INSTR1(LUT_READ));
-	qspi_write32(&regs->lut[lut_base + 1], 0);
-	qspi_write32(&regs->lut[lut_base + 2], 0);
-	qspi_write32(&regs->lut[lut_base + 3], 0);
+	qspi_write32(priv->flags, &regs->lut[lut_base + 1], 0);
+	qspi_write32(priv->flags, &regs->lut[lut_base + 2], 0);
+	qspi_write32(priv->flags, &regs->lut[lut_base + 3], 0);
 
 	/* SUB SECTOR 4K ERASE */
 	lut_base = SEQID_BE_4K * 4;
-	qspi_write32(&regs->lut[lut_base], OPRND0(QSPI_CMD_BE_4K) |
+	qspi_write32(priv->flags, &regs->lut[lut_base], OPRND0(QSPI_CMD_BE_4K) |
 		     PAD0(LUT_PAD1) | INSTR0(LUT_CMD) | OPRND1(ADDR24BIT) |
 		     PAD1(LUT_PAD1) | INSTR1(LUT_ADDR));
 
@@ -239,28 +297,28 @@ static void qspi_set_lut(struct fsl_qspi *qspi)
 	 * initialization.
 	 */
 	lut_base = SEQID_BRRD * 4;
-	qspi_write32(&regs->lut[lut_base], OPRND0(QSPI_CMD_BRRD) |
+	qspi_write32(priv->flags, &regs->lut[lut_base], OPRND0(QSPI_CMD_BRRD) |
 		     PAD0(LUT_PAD1) | INSTR0(LUT_CMD) | OPRND1(1) |
 		     PAD1(LUT_PAD1) | INSTR1(LUT_READ));
 
 	lut_base = SEQID_BRWR * 4;
-	qspi_write32(&regs->lut[lut_base], OPRND0(QSPI_CMD_BRWR) |
+	qspi_write32(priv->flags, &regs->lut[lut_base], OPRND0(QSPI_CMD_BRWR) |
 		     PAD0(LUT_PAD1) | INSTR0(LUT_CMD) | OPRND1(1) |
 		     PAD1(LUT_PAD1) | INSTR1(LUT_WRITE));
 
 	lut_base = SEQID_RDEAR * 4;
-	qspi_write32(&regs->lut[lut_base], OPRND0(QSPI_CMD_RDEAR) |
+	qspi_write32(priv->flags, &regs->lut[lut_base], OPRND0(QSPI_CMD_RDEAR) |
 		     PAD0(LUT_PAD1) | INSTR0(LUT_CMD) | OPRND1(1) |
 		     PAD1(LUT_PAD1) | INSTR1(LUT_READ));
 
 	lut_base = SEQID_WREAR * 4;
-	qspi_write32(&regs->lut[lut_base], OPRND0(QSPI_CMD_WREAR) |
+	qspi_write32(priv->flags, &regs->lut[lut_base], OPRND0(QSPI_CMD_WREAR) |
 		     PAD0(LUT_PAD1) | INSTR0(LUT_CMD) | OPRND1(1) |
 		     PAD1(LUT_PAD1) | INSTR1(LUT_WRITE));
 #endif
 	/* Lock the LUT */
-	qspi_write32(&regs->lutkey, LUT_KEY_VALUE);
-	qspi_write32(&regs->lckcr, QSPI_LCKCR_LOCK);
+	qspi_write32(priv->flags, &regs->lutkey, LUT_KEY_VALUE);
+	qspi_write32(priv->flags, &regs->lckcr, QSPI_LCKCR_LOCK);
 }
 
 #if defined(CONFIG_SYS_FSL_QSPI_AHB)
@@ -270,14 +328,14 @@ static void qspi_set_lut(struct fsl_qspi *qspi)
  * the wrong data. The spec tells us reset the AHB domain and Serial Flash
  * domain at the same time.
  */
-static inline void qspi_ahb_invalid(struct fsl_qspi *q)
+static inline void qspi_ahb_invalid(struct fsl_qspi_priv *priv)
 {
-	struct fsl_qspi_regs *regs = (struct fsl_qspi_regs *)q->reg_base;
+	struct fsl_qspi_regs *regs = priv->regs;
 	u32 reg;
 
-	reg = qspi_read32(&regs->mcr);
+	reg = qspi_read32(priv->flags, &regs->mcr);
 	reg |= QSPI_MCR_SWRSTHD_MASK | QSPI_MCR_SWRSTSD_MASK;
-	qspi_write32(&regs->mcr, reg);
+	qspi_write32(priv->flags, &regs->mcr, reg);
 
 	/*
 	 * The minimum delay : 1 AHB + 2 SFCK clocks.
@@ -286,46 +344,48 @@ static inline void qspi_ahb_invalid(struct fsl_qspi *q)
 	udelay(1);
 
 	reg &= ~(QSPI_MCR_SWRSTHD_MASK | QSPI_MCR_SWRSTSD_MASK);
-	qspi_write32(&regs->mcr, reg);
+	qspi_write32(priv->flags, &regs->mcr, reg);
 }
 
 /* Read out the data from the AHB buffer. */
-static inline void qspi_ahb_read(struct fsl_qspi *q, u8 *rxbuf, int len)
+static inline void qspi_ahb_read(struct fsl_qspi_priv *priv, u8 *rxbuf, int len)
 {
-	struct fsl_qspi_regs *regs = (struct fsl_qspi_regs *)q->reg_base;
+	struct fsl_qspi_regs *regs = priv->regs;
 	u32 mcr_reg;
 
-	mcr_reg = qspi_read32(&regs->mcr);
+	mcr_reg = qspi_read32(priv->flags, &regs->mcr);
 
-	qspi_write32(&regs->mcr, QSPI_MCR_CLR_RXF_MASK | QSPI_MCR_CLR_TXF_MASK |
+	qspi_write32(priv->flags, &regs->mcr,
+		     QSPI_MCR_CLR_RXF_MASK | QSPI_MCR_CLR_TXF_MASK |
 		     QSPI_MCR_RESERVED_MASK | QSPI_MCR_END_CFD_LE);
 
 	/* Read out the data directly from the AHB buffer. */
-	memcpy(rxbuf, (u8 *)(q->amba_base + q->sf_addr), len);
+	memcpy(rxbuf, (u8 *)(priv->cur_amba_base + priv->sf_addr), len);
 
-	qspi_write32(&regs->mcr, mcr_reg);
+	qspi_write32(priv->flags, &regs->mcr, mcr_reg);
 }
 
-static void qspi_enable_ddr_mode(struct fsl_qspi_regs *regs)
+static void qspi_enable_ddr_mode(struct fsl_qspi_priv *priv)
 {
 	u32 reg, reg2;
+	struct fsl_qspi_regs *regs = priv->regs;
 
-	reg = qspi_read32(&regs->mcr);
+	reg = qspi_read32(priv->flags, &regs->mcr);
 	/* Disable the module */
-	qspi_write32(&regs->mcr, reg | QSPI_MCR_MDIS_MASK);
+	qspi_write32(priv->flags, &regs->mcr, reg | QSPI_MCR_MDIS_MASK);
 
 	/* Set the Sampling Register for DDR */
-	reg2 = qspi_read32(&regs->smpr);
+	reg2 = qspi_read32(priv->flags, &regs->smpr);
 	reg2 &= ~QSPI_SMPR_DDRSMP_MASK;
 	reg2 |= (2 << QSPI_SMPR_DDRSMP_SHIFT);
-	qspi_write32(&regs->smpr, reg2);
+	qspi_write32(priv->flags, &regs->smpr, reg2);
 
 	/* Enable the module again (enable the DDR too) */
 	reg |= QSPI_MCR_DDR_EN_MASK;
 	/* Enable bit 29 for imx6sx */
 	reg |= (1 << 29);
 
-	qspi_write32(&regs->mcr, reg);
+	qspi_write32(priv->flags, &regs->mcr, reg);
 }
 
 /*
@@ -341,180 +401,103 @@ static void qspi_enable_ddr_mode(struct fsl_qspi_regs *regs)
  * causes the controller to clear the buffer, and use the sequence pointed
  * by the QUADSPI_BFGENCR[SEQID] to initiate a read from the flash.
  */
-static void qspi_init_ahb_read(struct fsl_qspi_regs *regs)
+static void qspi_init_ahb_read(struct fsl_qspi_priv *priv)
 {
+	struct fsl_qspi_regs *regs = priv->regs;
+
 	/* AHB configuration for access buffer 0/1/2 .*/
-	qspi_write32(&regs->buf0cr, QSPI_BUFXCR_INVALID_MSTRID);
-	qspi_write32(&regs->buf1cr, QSPI_BUFXCR_INVALID_MSTRID);
-	qspi_write32(&regs->buf2cr, QSPI_BUFXCR_INVALID_MSTRID);
-	qspi_write32(&regs->buf3cr, QSPI_BUF3CR_ALLMST_MASK |
+	qspi_write32(priv->flags, &regs->buf0cr, QSPI_BUFXCR_INVALID_MSTRID);
+	qspi_write32(priv->flags, &regs->buf1cr, QSPI_BUFXCR_INVALID_MSTRID);
+	qspi_write32(priv->flags, &regs->buf2cr, QSPI_BUFXCR_INVALID_MSTRID);
+	qspi_write32(priv->flags, &regs->buf3cr, QSPI_BUF3CR_ALLMST_MASK |
 		     (0x80 << QSPI_BUF3CR_ADATSZ_SHIFT));
 
 	/* We only use the buffer3 */
-	qspi_write32(&regs->buf0ind, 0);
-	qspi_write32(&regs->buf1ind, 0);
-	qspi_write32(&regs->buf2ind, 0);
+	qspi_write32(priv->flags, &regs->buf0ind, 0);
+	qspi_write32(priv->flags, &regs->buf1ind, 0);
+	qspi_write32(priv->flags, &regs->buf2ind, 0);
 
 	/*
 	 * Set the default lut sequence for AHB Read.
 	 * Parallel mode is disabled.
 	 */
-	qspi_write32(&regs->bfgencr,
+	qspi_write32(priv->flags, &regs->bfgencr,
 		     SEQID_FAST_READ << QSPI_BFGENCR_SEQID_SHIFT);
 
 	/*Enable DDR Mode*/
-	qspi_enable_ddr_mode(regs);
+	qspi_enable_ddr_mode(priv);
 }
 #endif
 
-void spi_init()
-{
-	/* do nothing */
-}
-
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
-		unsigned int max_hz, unsigned int mode)
-{
-	struct fsl_qspi *qspi;
-	struct fsl_qspi_regs *regs;
-	u32 smpr_val;
-	u32 total_size;
-
-	if (bus >= ARRAY_SIZE(spi_bases))
-		return NULL;
-
-	if (cs >= FSL_QSPI_FLASH_NUM)
-		return NULL;
-
-	qspi = spi_alloc_slave(struct fsl_qspi, bus, cs);
-	if (!qspi)
-		return NULL;
-
-	qspi->reg_base = spi_bases[bus];
-	/*
-	 * According cs, use different amba_base to choose the
-	 * corresponding flash devices.
-	 *
-	 * If not, only one flash device is used even if passing
-	 * different cs using `sf probe`
-	 */
-	qspi->amba_base = amba_bases[bus] + cs * FSL_QSPI_FLASH_SIZE;
-
-	qspi->slave.max_write_size = TX_BUFFER_SIZE;
-
-	regs = (struct fsl_qspi_regs *)qspi->reg_base;
-	qspi_write32(&regs->mcr, QSPI_MCR_RESERVED_MASK | QSPI_MCR_MDIS_MASK);
-
-	smpr_val = qspi_read32(&regs->smpr);
-	qspi_write32(&regs->smpr, smpr_val & ~(QSPI_SMPR_FSDLY_MASK |
-		QSPI_SMPR_FSPHS_MASK | QSPI_SMPR_HSENA_MASK));
-	qspi_write32(&regs->mcr, QSPI_MCR_RESERVED_MASK);
-
-	total_size = FSL_QSPI_FLASH_SIZE * FSL_QSPI_FLASH_NUM;
-	/*
-	 * Any read access to non-implemented addresses will provide
-	 * undefined results.
-	 *
-	 * In case single die flash devices, TOP_ADDR_MEMA2 and
-	 * TOP_ADDR_MEMB2 should be initialized/programmed to
-	 * TOP_ADDR_MEMA1 and TOP_ADDR_MEMB1 respectively - in effect,
-	 * setting the size of these devices to 0.  This would ensure
-	 * that the complete memory map is assigned to only one flash device.
-	 */
-	qspi_write32(&regs->sfa1ad, FSL_QSPI_FLASH_SIZE | amba_bases[bus]);
-	qspi_write32(&regs->sfa2ad, FSL_QSPI_FLASH_SIZE | amba_bases[bus]);
-	qspi_write32(&regs->sfb1ad, total_size | amba_bases[bus]);
-	qspi_write32(&regs->sfb2ad, total_size | amba_bases[bus]);
-
-	qspi_set_lut(qspi);
-
-	smpr_val = qspi_read32(&regs->smpr);
-	smpr_val &= ~QSPI_SMPR_DDRSMP_MASK;
-	qspi_write32(&regs->smpr, smpr_val);
-	qspi_write32(&regs->mcr, QSPI_MCR_RESERVED_MASK);
-
-#ifdef CONFIG_SYS_FSL_QSPI_AHB
-	qspi_init_ahb_read(regs);
-#endif
-	return &qspi->slave;
-}
-
-void spi_free_slave(struct spi_slave *slave)
-{
-	struct fsl_qspi *qspi = to_qspi_spi(slave);
-
-	free(qspi);
-}
-
-int spi_claim_bus(struct spi_slave *slave)
-{
-	return 0;
-}
-
 #ifdef CONFIG_SPI_FLASH_BAR
 /* Bank register read/write, EAR register read/write */
-static void qspi_op_rdbank(struct fsl_qspi *qspi, u8 *rxbuf, u32 len)
+static void qspi_op_rdbank(struct fsl_qspi_priv *priv, u8 *rxbuf, u32 len)
 {
-	struct fsl_qspi_regs *regs = (struct fsl_qspi_regs *)qspi->reg_base;
+	struct fsl_qspi_regs *regs = priv->regs;
 	u32 reg, mcr_reg, data, seqid;
 
-	mcr_reg = qspi_read32(&regs->mcr);
-	qspi_write32(&regs->mcr, QSPI_MCR_CLR_RXF_MASK | QSPI_MCR_CLR_TXF_MASK |
+	mcr_reg = qspi_read32(priv->flags, &regs->mcr);
+	qspi_write32(priv->flags, &regs->mcr,
+		     QSPI_MCR_CLR_RXF_MASK | QSPI_MCR_CLR_TXF_MASK |
 		     QSPI_MCR_RESERVED_MASK | QSPI_MCR_END_CFD_LE);
-	qspi_write32(&regs->rbct, QSPI_RBCT_RXBRD_USEIPS);
+	qspi_write32(priv->flags, &regs->rbct, QSPI_RBCT_RXBRD_USEIPS);
 
-	qspi_write32(&regs->sfar, qspi->amba_base);
+	qspi_write32(priv->flags, &regs->sfar, priv->cur_amba_base);
 
-	if (qspi->cur_seqid == QSPI_CMD_BRRD)
+	if (priv->cur_seqid == QSPI_CMD_BRRD)
 		seqid = SEQID_BRRD;
 	else
 		seqid = SEQID_RDEAR;
 
-	qspi_write32(&regs->ipcr, (seqid << QSPI_IPCR_SEQID_SHIFT) | len);
+	qspi_write32(priv->flags, &regs->ipcr,
+		     (seqid << QSPI_IPCR_SEQID_SHIFT) | len);
 
 	/* Wait previous command complete */
-	while (qspi_read32(&regs->sr) & QSPI_SR_BUSY_MASK)
+	while (qspi_read32(priv->flags, &regs->sr) & QSPI_SR_BUSY_MASK)
 		;
 
 	while (1) {
-		reg = qspi_read32(&regs->rbsr);
+		reg = qspi_read32(priv->flags, &regs->rbsr);
 		if (reg & QSPI_RBSR_RDBFL_MASK) {
-			data = qspi_read32(&regs->rbdr[0]);
+			data = qspi_read32(priv->flags, &regs->rbdr[0]);
 			data = qspi_endian_xchg(data);
 			memcpy(rxbuf, &data, len);
-			qspi_write32(&regs->mcr, qspi_read32(&regs->mcr) |
+			qspi_write32(priv->flags, &regs->mcr,
+				     qspi_read32(priv->flags, &regs->mcr) |
 				     QSPI_MCR_CLR_RXF_MASK);
 			break;
 		}
 	}
 
-	qspi_write32(&regs->mcr, mcr_reg);
+	qspi_write32(priv->flags, &regs->mcr, mcr_reg);
 }
 #endif
 
-static void qspi_op_rdid(struct fsl_qspi *qspi, u32 *rxbuf, u32 len)
+static void qspi_op_rdid(struct fsl_qspi_priv *priv, u32 *rxbuf, u32 len)
 {
-	struct fsl_qspi_regs *regs = (struct fsl_qspi_regs *)qspi->reg_base;
+	struct fsl_qspi_regs *regs = priv->regs;
 	u32 mcr_reg, rbsr_reg, data;
 	int i, size;
 
-	mcr_reg = qspi_read32(&regs->mcr);
-	qspi_write32(&regs->mcr, QSPI_MCR_CLR_RXF_MASK | QSPI_MCR_CLR_TXF_MASK |
-		QSPI_MCR_RESERVED_MASK | QSPI_MCR_END_CFD_LE);
-	qspi_write32(&regs->rbct, QSPI_RBCT_RXBRD_USEIPS);
+	mcr_reg = qspi_read32(priv->flags, &regs->mcr);
+	qspi_write32(priv->flags, &regs->mcr,
+		     QSPI_MCR_CLR_RXF_MASK | QSPI_MCR_CLR_TXF_MASK |
+		     QSPI_MCR_RESERVED_MASK | QSPI_MCR_END_CFD_LE);
+	qspi_write32(priv->flags, &regs->rbct, QSPI_RBCT_RXBRD_USEIPS);
 
-	qspi_write32(&regs->sfar, qspi->amba_base);
+	qspi_write32(priv->flags, &regs->sfar, priv->cur_amba_base);
 
-	qspi_write32(&regs->ipcr, (SEQID_RDID << QSPI_IPCR_SEQID_SHIFT) | 0);
-	while (qspi_read32(&regs->sr) & QSPI_SR_BUSY_MASK)
+	qspi_write32(priv->flags, &regs->ipcr,
+		     (SEQID_RDID << QSPI_IPCR_SEQID_SHIFT) | 0);
+	while (qspi_read32(priv->flags, &regs->sr) & QSPI_SR_BUSY_MASK)
 		;
 
 	i = 0;
 	size = len;
 	while ((RX_BUFFER_SIZE >= size) && (size > 0)) {
-		rbsr_reg = qspi_read32(&regs->rbsr);
+		rbsr_reg = qspi_read32(priv->flags, &regs->rbsr);
 		if (rbsr_reg & QSPI_RBSR_RDBFL_MASK) {
-			data = qspi_read32(&regs->rbdr[i]);
+			data = qspi_read32(priv->flags, &regs->rbdr[i]);
 			data = qspi_endian_xchg(data);
 			memcpy(rxbuf, &data, 4);
 			rxbuf++;
@@ -523,34 +506,36 @@ static void qspi_op_rdid(struct fsl_qspi *qspi, u32 *rxbuf, u32 len)
 		}
 	}
 
-	qspi_write32(&regs->mcr, mcr_reg);
+	qspi_write32(priv->flags, &regs->mcr, mcr_reg);
 }
 
 #ifndef CONFIG_SYS_FSL_QSPI_AHB
 /* If not use AHB read, read data from ip interface */
-static void qspi_op_read(struct fsl_qspi *qspi, u32 *rxbuf, u32 len)
+static void qspi_op_read(struct fsl_qspi_priv *priv, u32 *rxbuf, u32 len)
 {
-	struct fsl_qspi_regs *regs = (struct fsl_qspi_regs *)qspi->reg_base;
+	struct fsl_qspi_regs *regs = priv->regs;
 	u32 mcr_reg, data;
 	int i, size;
 	u32 to_or_from;
 
-	mcr_reg = qspi_read32(&regs->mcr);
-	qspi_write32(&regs->mcr, QSPI_MCR_CLR_RXF_MASK | QSPI_MCR_CLR_TXF_MASK |
-		QSPI_MCR_RESERVED_MASK | QSPI_MCR_END_CFD_LE);
-	qspi_write32(&regs->rbct, QSPI_RBCT_RXBRD_USEIPS);
+	mcr_reg = qspi_read32(priv->flags, &regs->mcr);
+	qspi_write32(priv->flags, &regs->mcr,
+		     QSPI_MCR_CLR_RXF_MASK | QSPI_MCR_CLR_TXF_MASK |
+		     QSPI_MCR_RESERVED_MASK | QSPI_MCR_END_CFD_LE);
+	qspi_write32(priv->flags, &regs->rbct, QSPI_RBCT_RXBRD_USEIPS);
 
-	to_or_from = qspi->sf_addr + qspi->amba_base;
+	to_or_from = priv->sf_addr + priv->cur_amba_base;
 
 	while (len > 0) {
-		qspi_write32(&regs->sfar, to_or_from);
+		qspi_write32(priv->flags, &regs->sfar, to_or_from);
 
 		size = (len > RX_BUFFER_SIZE) ?
 			RX_BUFFER_SIZE : len;
 
-		qspi_write32(&regs->ipcr,
-			(SEQID_FAST_READ << QSPI_IPCR_SEQID_SHIFT) | size);
-		while (qspi_read32(&regs->sr) & QSPI_SR_BUSY_MASK)
+		qspi_write32(priv->flags, &regs->ipcr,
+			     (SEQID_FAST_READ << QSPI_IPCR_SEQID_SHIFT) |
+			     size);
+		while (qspi_read32(priv->flags, &regs->sr) & QSPI_SR_BUSY_MASK)
 			;
 
 		to_or_from += size;
@@ -558,66 +543,69 @@ static void qspi_op_read(struct fsl_qspi *qspi, u32 *rxbuf, u32 len)
 
 		i = 0;
 		while ((RX_BUFFER_SIZE >= size) && (size > 0)) {
-			data = qspi_read32(&regs->rbdr[i]);
+			data = qspi_read32(priv->flags, &regs->rbdr[i]);
 			data = qspi_endian_xchg(data);
 			memcpy(rxbuf, &data, 4);
 			rxbuf++;
 			size -= 4;
 			i++;
 		}
-		qspi_write32(&regs->mcr, qspi_read32(&regs->mcr) |
-			QSPI_MCR_CLR_RXF_MASK);
+		qspi_write32(priv->flags, &regs->mcr,
+			     qspi_read32(priv->flags, &regs->mcr) |
+			     QSPI_MCR_CLR_RXF_MASK);
 	}
 
-	qspi_write32(&regs->mcr, mcr_reg);
+	qspi_write32(priv->flags, &regs->mcr, mcr_reg);
 }
 #endif
 
-static void qspi_op_write(struct fsl_qspi *qspi, u8 *txbuf, u32 len)
+static void qspi_op_write(struct fsl_qspi_priv *priv, u8 *txbuf, u32 len)
 {
-	struct fsl_qspi_regs *regs = (struct fsl_qspi_regs *)qspi->reg_base;
+	struct fsl_qspi_regs *regs = priv->regs;
 	u32 mcr_reg, data, reg, status_reg, seqid;
 	int i, size, tx_size;
 	u32 to_or_from = 0;
 
-	mcr_reg = qspi_read32(&regs->mcr);
-	qspi_write32(&regs->mcr, QSPI_MCR_CLR_RXF_MASK | QSPI_MCR_CLR_TXF_MASK |
-		QSPI_MCR_RESERVED_MASK | QSPI_MCR_END_CFD_LE);
-	qspi_write32(&regs->rbct, QSPI_RBCT_RXBRD_USEIPS);
+	mcr_reg = qspi_read32(priv->flags, &regs->mcr);
+	qspi_write32(priv->flags, &regs->mcr,
+		     QSPI_MCR_CLR_RXF_MASK | QSPI_MCR_CLR_TXF_MASK |
+		     QSPI_MCR_RESERVED_MASK | QSPI_MCR_END_CFD_LE);
+	qspi_write32(priv->flags, &regs->rbct, QSPI_RBCT_RXBRD_USEIPS);
 
 	status_reg = 0;
 	while ((status_reg & FLASH_STATUS_WEL) != FLASH_STATUS_WEL) {
-		qspi_write32(&regs->ipcr,
-			(SEQID_WREN << QSPI_IPCR_SEQID_SHIFT) | 0);
-		while (qspi_read32(&regs->sr) & QSPI_SR_BUSY_MASK)
+		qspi_write32(priv->flags, &regs->ipcr,
+			     (SEQID_WREN << QSPI_IPCR_SEQID_SHIFT) | 0);
+		while (qspi_read32(priv->flags, &regs->sr) & QSPI_SR_BUSY_MASK)
 			;
 
-		qspi_write32(&regs->ipcr,
-			(SEQID_RDSR << QSPI_IPCR_SEQID_SHIFT) | 1);
-		while (qspi_read32(&regs->sr) & QSPI_SR_BUSY_MASK)
+		qspi_write32(priv->flags, &regs->ipcr,
+			     (SEQID_RDSR << QSPI_IPCR_SEQID_SHIFT) | 1);
+		while (qspi_read32(priv->flags, &regs->sr) & QSPI_SR_BUSY_MASK)
 			;
 
-		reg = qspi_read32(&regs->rbsr);
+		reg = qspi_read32(priv->flags, &regs->rbsr);
 		if (reg & QSPI_RBSR_RDBFL_MASK) {
-			status_reg = qspi_read32(&regs->rbdr[0]);
+			status_reg = qspi_read32(priv->flags, &regs->rbdr[0]);
 			status_reg = qspi_endian_xchg(status_reg);
 		}
-		qspi_write32(&regs->mcr,
-			qspi_read32(&regs->mcr) | QSPI_MCR_CLR_RXF_MASK);
+		qspi_write32(priv->flags, &regs->mcr,
+			     qspi_read32(priv->flags, &regs->mcr) |
+			     QSPI_MCR_CLR_RXF_MASK);
 	}
 
 	/* Default is page programming */
 	seqid = SEQID_PP;
 #ifdef CONFIG_SPI_FLASH_BAR
-	if (qspi->cur_seqid == QSPI_CMD_BRWR)
+	if (priv->cur_seqid == QSPI_CMD_BRWR)
 		seqid = SEQID_BRWR;
-	else if (qspi->cur_seqid == QSPI_CMD_WREAR)
+	else if (priv->cur_seqid == QSPI_CMD_WREAR)
 		seqid = SEQID_WREAR;
 #endif
 
-	to_or_from = qspi->sf_addr + qspi->amba_base;
+	to_or_from = priv->sf_addr + priv->cur_amba_base;
 
-	qspi_write32(&regs->sfar, to_or_from);
+	qspi_write32(priv->flags, &regs->sfar, to_or_from);
 
 	tx_size = (len > TX_BUFFER_SIZE) ?
 		TX_BUFFER_SIZE : len;
@@ -626,7 +614,7 @@ static void qspi_op_write(struct fsl_qspi *qspi, u8 *txbuf, u32 len)
 	for (i = 0; i < size; i++) {
 		memcpy(&data, txbuf, 4);
 		data = qspi_endian_xchg(data);
-		qspi_write32(&regs->tbdr, data);
+		qspi_write32(priv->flags, &regs->tbdr, data);
 		txbuf += 4;
 	}
 
@@ -635,146 +623,273 @@ static void qspi_op_write(struct fsl_qspi *qspi, u8 *txbuf, u32 len)
 		data = 0;
 		memcpy(&data, txbuf, size);
 		data = qspi_endian_xchg(data);
-		qspi_write32(&regs->tbdr, data);
+		qspi_write32(priv->flags, &regs->tbdr, data);
 	}
 
-	qspi_write32(&regs->ipcr, (seqid << QSPI_IPCR_SEQID_SHIFT) | tx_size);
-	while (qspi_read32(&regs->sr) & QSPI_SR_BUSY_MASK)
+	qspi_write32(priv->flags, &regs->ipcr,
+		     (seqid << QSPI_IPCR_SEQID_SHIFT) | tx_size);
+	while (qspi_read32(priv->flags, &regs->sr) & QSPI_SR_BUSY_MASK)
 		;
 
-	qspi_write32(&regs->mcr, mcr_reg);
+	qspi_write32(priv->flags, &regs->mcr, mcr_reg);
 }
 
-static void qspi_op_rdsr(struct fsl_qspi *qspi, u32 *rxbuf)
+static void qspi_op_rdsr(struct fsl_qspi_priv *priv, u32 *rxbuf)
 {
-	struct fsl_qspi_regs *regs = (struct fsl_qspi_regs *)qspi->reg_base;
+	struct fsl_qspi_regs *regs = priv->regs;
 	u32 mcr_reg, reg, data;
 
-	mcr_reg = qspi_read32(&regs->mcr);
-	qspi_write32(&regs->mcr, QSPI_MCR_CLR_RXF_MASK | QSPI_MCR_CLR_TXF_MASK |
-		QSPI_MCR_RESERVED_MASK | QSPI_MCR_END_CFD_LE);
-	qspi_write32(&regs->rbct, QSPI_RBCT_RXBRD_USEIPS);
+	mcr_reg = qspi_read32(priv->flags, &regs->mcr);
+	qspi_write32(priv->flags, &regs->mcr,
+		     QSPI_MCR_CLR_RXF_MASK | QSPI_MCR_CLR_TXF_MASK |
+		     QSPI_MCR_RESERVED_MASK | QSPI_MCR_END_CFD_LE);
+	qspi_write32(priv->flags, &regs->rbct, QSPI_RBCT_RXBRD_USEIPS);
 
-	qspi_write32(&regs->sfar, qspi->amba_base);
+	qspi_write32(priv->flags, &regs->sfar, priv->cur_amba_base);
 
-	qspi_write32(&regs->ipcr,
-		(SEQID_RDSR << QSPI_IPCR_SEQID_SHIFT) | 0);
-	while (qspi_read32(&regs->sr) & QSPI_SR_BUSY_MASK)
+	qspi_write32(priv->flags, &regs->ipcr,
+		     (SEQID_RDSR << QSPI_IPCR_SEQID_SHIFT) | 0);
+	while (qspi_read32(priv->flags, &regs->sr) & QSPI_SR_BUSY_MASK)
 		;
 
 	while (1) {
-		reg = qspi_read32(&regs->rbsr);
+		reg = qspi_read32(priv->flags, &regs->rbsr);
 		if (reg & QSPI_RBSR_RDBFL_MASK) {
-			data = qspi_read32(&regs->rbdr[0]);
+			data = qspi_read32(priv->flags, &regs->rbdr[0]);
 			data = qspi_endian_xchg(data);
 			memcpy(rxbuf, &data, 4);
-			qspi_write32(&regs->mcr, qspi_read32(&regs->mcr) |
-				QSPI_MCR_CLR_RXF_MASK);
+			qspi_write32(priv->flags, &regs->mcr,
+				     qspi_read32(priv->flags, &regs->mcr) |
+				     QSPI_MCR_CLR_RXF_MASK);
 			break;
 		}
 	}
 
-	qspi_write32(&regs->mcr, mcr_reg);
+	qspi_write32(priv->flags, &regs->mcr, mcr_reg);
 }
 
-static void qspi_op_erase(struct fsl_qspi *qspi)
+static void qspi_op_erase(struct fsl_qspi_priv *priv)
 {
-	struct fsl_qspi_regs *regs = (struct fsl_qspi_regs *)qspi->reg_base;
+	struct fsl_qspi_regs *regs = priv->regs;
 	u32 mcr_reg;
 	u32 to_or_from = 0;
 
-	mcr_reg = qspi_read32(&regs->mcr);
-	qspi_write32(&regs->mcr, QSPI_MCR_CLR_RXF_MASK | QSPI_MCR_CLR_TXF_MASK |
-		QSPI_MCR_RESERVED_MASK | QSPI_MCR_END_CFD_LE);
-	qspi_write32(&regs->rbct, QSPI_RBCT_RXBRD_USEIPS);
+	mcr_reg = qspi_read32(priv->flags, &regs->mcr);
+	qspi_write32(priv->flags, &regs->mcr,
+		     QSPI_MCR_CLR_RXF_MASK | QSPI_MCR_CLR_TXF_MASK |
+		     QSPI_MCR_RESERVED_MASK | QSPI_MCR_END_CFD_LE);
+	qspi_write32(priv->flags, &regs->rbct, QSPI_RBCT_RXBRD_USEIPS);
 
-	to_or_from = qspi->sf_addr + qspi->amba_base;
-	qspi_write32(&regs->sfar, to_or_from);
+	to_or_from = priv->sf_addr + priv->cur_amba_base;
+	qspi_write32(priv->flags, &regs->sfar, to_or_from);
 
-	qspi_write32(&regs->ipcr,
-		(SEQID_WREN << QSPI_IPCR_SEQID_SHIFT) | 0);
-	while (qspi_read32(&regs->sr) & QSPI_SR_BUSY_MASK)
+	qspi_write32(priv->flags, &regs->ipcr,
+		     (SEQID_WREN << QSPI_IPCR_SEQID_SHIFT) | 0);
+	while (qspi_read32(priv->flags, &regs->sr) & QSPI_SR_BUSY_MASK)
 		;
 
-	if (qspi->cur_seqid == QSPI_CMD_SE) {
-		qspi_write32(&regs->ipcr,
+	if (priv->cur_seqid == QSPI_CMD_SE) {
+		qspi_write32(priv->flags, &regs->ipcr,
 			     (SEQID_SE << QSPI_IPCR_SEQID_SHIFT) | 0);
-	} else if (qspi->cur_seqid == QSPI_CMD_BE_4K) {
-		qspi_write32(&regs->ipcr,
+	} else if (priv->cur_seqid == QSPI_CMD_BE_4K) {
+		qspi_write32(priv->flags, &regs->ipcr,
 			     (SEQID_BE_4K << QSPI_IPCR_SEQID_SHIFT) | 0);
 	}
-	while (qspi_read32(&regs->sr) & QSPI_SR_BUSY_MASK)
+	while (qspi_read32(priv->flags, &regs->sr) & QSPI_SR_BUSY_MASK)
 		;
 
-	qspi_write32(&regs->mcr, mcr_reg);
+	qspi_write32(priv->flags, &regs->mcr, mcr_reg);
 }
 
-int spi_xfer(struct spi_slave *slave, unsigned int bitlen,
+int qspi_xfer(struct fsl_qspi_priv *priv, unsigned int bitlen,
 		const void *dout, void *din, unsigned long flags)
 {
-	struct fsl_qspi *qspi = to_qspi_spi(slave);
 	u32 bytes = DIV_ROUND_UP(bitlen, 8);
 	static u32 wr_sfaddr;
 	u32 txbuf;
 
 	if (dout) {
 		if (flags & SPI_XFER_BEGIN) {
-			qspi->cur_seqid = *(u8 *)dout;
+			priv->cur_seqid = *(u8 *)dout;
 			memcpy(&txbuf, dout, 4);
 		}
 
 		if (flags == SPI_XFER_END) {
-			qspi->sf_addr = wr_sfaddr;
-			qspi_op_write(qspi, (u8 *)dout, bytes);
+			priv->sf_addr = wr_sfaddr;
+			qspi_op_write(priv, (u8 *)dout, bytes);
 			return 0;
 		}
 
-		if (qspi->cur_seqid == QSPI_CMD_FAST_READ) {
-			qspi->sf_addr = swab32(txbuf) & OFFSET_BITS_MASK;
-		} else if ((qspi->cur_seqid == QSPI_CMD_SE) ||
-			   (qspi->cur_seqid == QSPI_CMD_BE_4K)) {
-			qspi->sf_addr = swab32(txbuf) & OFFSET_BITS_MASK;
-			qspi_op_erase(qspi);
-		} else if (qspi->cur_seqid == QSPI_CMD_PP)
+		if (priv->cur_seqid == QSPI_CMD_FAST_READ) {
+			priv->sf_addr = swab32(txbuf) & OFFSET_BITS_MASK;
+		} else if ((priv->cur_seqid == QSPI_CMD_SE) ||
+			   (priv->cur_seqid == QSPI_CMD_BE_4K)) {
+			priv->sf_addr = swab32(txbuf) & OFFSET_BITS_MASK;
+			qspi_op_erase(priv);
+		} else if (priv->cur_seqid == QSPI_CMD_PP) {
 			wr_sfaddr = swab32(txbuf) & OFFSET_BITS_MASK;
+		} else if ((priv->cur_seqid == QSPI_CMD_BRWR) ||
+			 (priv->cur_seqid == QSPI_CMD_WREAR)) {
 #ifdef CONFIG_SPI_FLASH_BAR
-		else if ((qspi->cur_seqid == QSPI_CMD_BRWR) ||
-			 (qspi->cur_seqid == QSPI_CMD_WREAR)) {
 			wr_sfaddr = 0;
-		}
 #endif
+		}
 	}
 
 	if (din) {
-		if (qspi->cur_seqid == QSPI_CMD_FAST_READ) {
+		if (priv->cur_seqid == QSPI_CMD_FAST_READ) {
 #ifdef CONFIG_SYS_FSL_QSPI_AHB
-			qspi_ahb_read(qspi, din, bytes);
+			qspi_ahb_read(priv, din, bytes);
 #else
-			qspi_op_read(qspi, din, bytes);
+			qspi_op_read(priv, din, bytes);
 #endif
-		}
-		else if (qspi->cur_seqid == QSPI_CMD_RDID)
-			qspi_op_rdid(qspi, din, bytes);
-		else if (qspi->cur_seqid == QSPI_CMD_RDSR)
-			qspi_op_rdsr(qspi, din);
+		} else if (priv->cur_seqid == QSPI_CMD_RDID)
+			qspi_op_rdid(priv, din, bytes);
+		else if (priv->cur_seqid == QSPI_CMD_RDSR)
+			qspi_op_rdsr(priv, din);
 #ifdef CONFIG_SPI_FLASH_BAR
-		else if ((qspi->cur_seqid == QSPI_CMD_BRRD) ||
-			 (qspi->cur_seqid == QSPI_CMD_RDEAR)) {
-			qspi->sf_addr = 0;
-			qspi_op_rdbank(qspi, din, bytes);
+		else if ((priv->cur_seqid == QSPI_CMD_BRRD) ||
+			 (priv->cur_seqid == QSPI_CMD_RDEAR)) {
+			priv->sf_addr = 0;
+			qspi_op_rdbank(priv, din, bytes);
 		}
 #endif
 	}
 
 #ifdef CONFIG_SYS_FSL_QSPI_AHB
-	if ((qspi->cur_seqid == QSPI_CMD_SE) ||
-	    (qspi->cur_seqid == QSPI_CMD_PP) ||
-	    (qspi->cur_seqid == QSPI_CMD_BE_4K) ||
-	    (qspi->cur_seqid == QSPI_CMD_WREAR) ||
-	    (qspi->cur_seqid == QSPI_CMD_BRWR))
-		qspi_ahb_invalid(qspi);
+	if ((priv->cur_seqid == QSPI_CMD_SE) ||
+	    (priv->cur_seqid == QSPI_CMD_PP) ||
+	    (priv->cur_seqid == QSPI_CMD_BE_4K) ||
+	    (priv->cur_seqid == QSPI_CMD_WREAR) ||
+	    (priv->cur_seqid == QSPI_CMD_BRWR))
+		qspi_ahb_invalid(priv);
+#endif
+
+	return 0;
+}
+
+void qspi_module_disable(struct fsl_qspi_priv *priv, u8 disable)
+{
+	u32 mcr_val;
+
+	mcr_val = qspi_read32(priv->flags, &priv->regs->mcr);
+	if (disable)
+		mcr_val |= QSPI_MCR_MDIS_MASK;
+	else
+		mcr_val &= ~QSPI_MCR_MDIS_MASK;
+	qspi_write32(priv->flags, &priv->regs->mcr, mcr_val);
+}
+
+void qspi_cfg_smpr(struct fsl_qspi_priv *priv, u32 clear_bits, u32 set_bits)
+{
+	u32 smpr_val;
+
+	smpr_val = qspi_read32(priv->flags, &priv->regs->smpr);
+	smpr_val &= ~clear_bits;
+	smpr_val |= set_bits;
+	qspi_write32(priv->flags, &priv->regs->smpr, smpr_val);
+}
+#ifndef CONFIG_DM_SPI
+static unsigned long spi_bases[] = {
+	QSPI0_BASE_ADDR,
+#ifdef CONFIG_MX6SX
+	QSPI1_BASE_ADDR,
+#endif
+};
+
+static unsigned long amba_bases[] = {
+	QSPI0_AMBA_BASE,
+#ifdef CONFIG_MX6SX
+	QSPI1_AMBA_BASE,
+#endif
+};
+
+static inline struct fsl_qspi *to_qspi_spi(struct spi_slave *slave)
+{
+	return container_of(slave, struct fsl_qspi, slave);
+}
+
+struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
+		unsigned int max_hz, unsigned int mode)
+{
+	struct fsl_qspi *qspi;
+	struct fsl_qspi_regs *regs;
+	u32 total_size;
+
+	if (bus >= ARRAY_SIZE(spi_bases))
+		return NULL;
+
+	if (cs >= FSL_QSPI_FLASH_NUM)
+		return NULL;
+
+	qspi = spi_alloc_slave(struct fsl_qspi, bus, cs);
+	if (!qspi)
+		return NULL;
+
+#ifdef CONFIG_SYS_FSL_QSPI_BE
+	qspi->priv.flags |= QSPI_FLAG_REGMAP_ENDIAN_BIG;
+#endif
+
+	regs = (struct fsl_qspi_regs *)spi_bases[bus];
+	qspi->priv.regs = regs;
+	/*
+	 * According cs, use different amba_base to choose the
+	 * corresponding flash devices.
+	 *
+	 * If not, only one flash device is used even if passing
+	 * different cs using `sf probe`
+	 */
+	qspi->priv.cur_amba_base = amba_bases[bus] + cs * FSL_QSPI_FLASH_SIZE;
+
+	qspi->slave.max_write_size = TX_BUFFER_SIZE;
+
+	qspi_write32(qspi->priv.flags, &regs->mcr,
+		     QSPI_MCR_RESERVED_MASK | QSPI_MCR_MDIS_MASK);
+
+	qspi_cfg_smpr(&qspi->priv,
+		      ~(QSPI_SMPR_FSDLY_MASK | QSPI_SMPR_DDRSMP_MASK |
+		      QSPI_SMPR_FSPHS_MASK | QSPI_SMPR_HSENA_MASK), 0);
+
+	total_size = FSL_QSPI_FLASH_SIZE * FSL_QSPI_FLASH_NUM;
+	/*
+	 * Any read access to non-implemented addresses will provide
+	 * undefined results.
+	 *
+	 * In case single die flash devices, TOP_ADDR_MEMA2 and
+	 * TOP_ADDR_MEMB2 should be initialized/programmed to
+	 * TOP_ADDR_MEMA1 and TOP_ADDR_MEMB1 respectively - in effect,
+	 * setting the size of these devices to 0.  This would ensure
+	 * that the complete memory map is assigned to only one flash device.
+	 */
+	qspi_write32(qspi->priv.flags, &regs->sfa1ad,
+		     FSL_QSPI_FLASH_SIZE | amba_bases[bus]);
+	qspi_write32(qspi->priv.flags, &regs->sfa2ad,
+		     FSL_QSPI_FLASH_SIZE | amba_bases[bus]);
+	qspi_write32(qspi->priv.flags, &regs->sfb1ad,
+		     total_size | amba_bases[bus]);
+	qspi_write32(qspi->priv.flags, &regs->sfb2ad,
+		     total_size | amba_bases[bus]);
+
+	qspi_set_lut(&qspi->priv);
+
+#ifdef CONFIG_SYS_FSL_QSPI_AHB
+	qspi_init_ahb_read(&qspi->priv);
 #endif
 
+	qspi_module_disable(&qspi->priv, 0);
+
+	return &qspi->slave;
+}
+
+void spi_free_slave(struct spi_slave *slave)
+{
+	struct fsl_qspi *qspi = to_qspi_spi(slave);
+
+	free(qspi);
+}
+
+int spi_claim_bus(struct spi_slave *slave)
+{
 	return 0;
 }
 
@@ -782,3 +897,215 @@ void spi_release_bus(struct spi_slave *slave)
 {
 	/* Nothing to do */
 }
+
+int spi_xfer(struct spi_slave *slave, unsigned int bitlen,
+		const void *dout, void *din, unsigned long flags)
+{
+	struct fsl_qspi *qspi = to_qspi_spi(slave);
+
+	return qspi_xfer(&qspi->priv, bitlen, dout, din, flags);
+}
+
+void spi_init(void)
+{
+	/* Nothing to do */
+}
+#else
+static int fsl_qspi_child_pre_probe(struct udevice *dev)
+{
+	struct spi_slave *slave = dev_get_parentdata(dev);
+
+	slave->max_write_size = TX_BUFFER_SIZE;
+
+	return 0;
+}
+
+static int fsl_qspi_probe(struct udevice *bus)
+{
+	u32 total_size;
+	struct fsl_qspi_platdata *plat = dev_get_platdata(bus);
+	struct fsl_qspi_priv *priv = dev_get_priv(bus);
+	struct dm_spi_bus *dm_spi_bus;
+
+	dm_spi_bus = bus->uclass_priv;
+
+	dm_spi_bus->max_hz = plat->speed_hz;
+
+	priv->regs = (struct fsl_qspi_regs *)plat->reg_base;
+	priv->flags = plat->flags;
+
+	priv->speed_hz = plat->speed_hz;
+	priv->amba_base[0] = plat->amba_base;
+	priv->amba_total_size = plat->amba_total_size;
+	priv->flash_num = plat->flash_num;
+	priv->num_chipselect = plat->num_chipselect;
+
+	qspi_write32(priv->flags, &priv->regs->mcr,
+		     QSPI_MCR_RESERVED_MASK | QSPI_MCR_MDIS_MASK);
+
+	qspi_cfg_smpr(priv, ~(QSPI_SMPR_FSDLY_MASK | QSPI_SMPR_DDRSMP_MASK |
+		QSPI_SMPR_FSPHS_MASK | QSPI_SMPR_HSENA_MASK), 0);
+
+	total_size = FSL_QSPI_FLASH_SIZE * FSL_QSPI_FLASH_NUM;
+	/*
+	 * Any read access to non-implemented addresses will provide
+	 * undefined results.
+	 *
+	 * In case single die flash devices, TOP_ADDR_MEMA2 and
+	 * TOP_ADDR_MEMB2 should be initialized/programmed to
+	 * TOP_ADDR_MEMA1 and TOP_ADDR_MEMB1 respectively - in effect,
+	 * setting the size of these devices to 0.  This would ensure
+	 * that the complete memory map is assigned to only one flash device.
+	 */
+	qspi_write32(priv->flags, &priv->regs->sfa1ad,
+		     FSL_QSPI_FLASH_SIZE | priv->amba_base[0]);
+	qspi_write32(priv->flags, &priv->regs->sfa2ad,
+		     FSL_QSPI_FLASH_SIZE | priv->amba_base[0]);
+	qspi_write32(priv->flags, &priv->regs->sfb1ad,
+		     total_size | priv->amba_base[0]);
+	qspi_write32(priv->flags, &priv->regs->sfb2ad,
+		     total_size | priv->amba_base[0]);
+
+	qspi_set_lut(priv);
+
+#ifdef CONFIG_SYS_FSL_QSPI_AHB
+	qspi_init_ahb_read(priv);
+#endif
+
+	qspi_module_disable(priv, 0);
+
+	return 0;
+}
+
+static int fsl_qspi_ofdata_to_platdata(struct udevice *bus)
+{
+	struct reg_data {
+		u32 addr;
+		u32 size;
+	} regs_data[2];
+	struct fsl_qspi_platdata *plat = bus->platdata;
+	const void *blob = gd->fdt_blob;
+	int node = bus->of_offset;
+	int ret, flash_num = 0, subnode;
+
+	if (fdtdec_get_bool(blob, node, "big-endian"))
+		plat->flags |= QSPI_FLAG_REGMAP_ENDIAN_BIG;
+
+	ret = fdtdec_get_int_array(blob, node, "reg", (u32 *)regs_data,
+				   sizeof(regs_data)/sizeof(u32));
+	if (ret) {
+		debug("Error: can't get base addresses (ret = %d)!\n", ret);
+		return -ENOMEM;
+	}
+
+	/* Count flash numbers */
+	fdt_for_each_subnode(blob, subnode, node)
+		++flash_num;
+
+	if (flash_num == 0) {
+		debug("Error: Missing flashes!\n");
+		return -ENODEV;
+	}
+
+	plat->speed_hz = fdtdec_get_int(blob, node, "spi-max-frequency",
+					FSL_QSPI_DEFAULT_SCK_FREQ);
+	plat->num_chipselect = fdtdec_get_int(blob, node, "num-cs",
+					      FSL_QSPI_MAX_CHIPSELECT_NUM);
+
+	plat->reg_base = regs_data[0].addr;
+	plat->amba_base = regs_data[1].addr;
+	plat->amba_total_size = regs_data[1].size;
+	plat->flash_num = flash_num;
+
+	debug("%s: regs=<0x%x> <0x%x, 0x%x>, max-frequency=%d, endianess=%s\n",
+	      __func__,
+	      plat->reg_base,
+	      plat->amba_base,
+	      plat->amba_total_size,
+	      plat->speed_hz,
+	      plat->flags & QSPI_FLAG_REGMAP_ENDIAN_BIG ? "be" : "le"
+	      );
+
+	return 0;
+}
+
+static int fsl_qspi_xfer(struct udevice *dev, unsigned int bitlen,
+		const void *dout, void *din, unsigned long flags)
+{
+	struct fsl_qspi_priv *priv;
+	struct udevice *bus;
+
+	bus = dev->parent;
+	priv = dev_get_priv(bus);
+
+	return qspi_xfer(priv, bitlen, dout, din, flags);
+}
+
+static int fsl_qspi_claim_bus(struct udevice *dev)
+{
+	struct fsl_qspi_priv *priv;
+	struct udevice *bus;
+	struct dm_spi_slave_platdata *slave_plat = dev_get_parent_platdata(dev);
+
+	bus = dev->parent;
+	priv = dev_get_priv(bus);
+
+	priv->cur_amba_base =
+		priv->amba_base[0] + FSL_QSPI_FLASH_SIZE * slave_plat->cs;
+
+	qspi_module_disable(priv, 0);
+
+	return 0;
+}
+
+static int fsl_qspi_release_bus(struct udevice *dev)
+{
+	struct fsl_qspi_priv *priv;
+	struct udevice *bus;
+
+	bus = dev->parent;
+	priv = dev_get_priv(bus);
+
+	qspi_module_disable(priv, 1);
+
+	return 0;
+}
+
+static int fsl_qspi_set_speed(struct udevice *bus, uint speed)
+{
+	/* Nothing to do */
+	return 0;
+}
+
+static int fsl_qspi_set_mode(struct udevice *bus, uint mode)
+{
+	/* Nothing to do */
+	return 0;
+}
+
+static const struct dm_spi_ops fsl_qspi_ops = {
+	.claim_bus	= fsl_qspi_claim_bus,
+	.release_bus	= fsl_qspi_release_bus,
+	.xfer		= fsl_qspi_xfer,
+	.set_speed	= fsl_qspi_set_speed,
+	.set_mode	= fsl_qspi_set_mode,
+};
+
+static const struct udevice_id fsl_qspi_ids[] = {
+	{ .compatible = "fsl,vf610-qspi" },
+	{ .compatible = "fsl,imx6sx-qspi" },
+	{ }
+};
+
+U_BOOT_DRIVER(fsl_qspi) = {
+	.name	= "fsl_qspi",
+	.id	= UCLASS_SPI,
+	.of_match = fsl_qspi_ids,
+	.ops	= &fsl_qspi_ops,
+	.ofdata_to_platdata = fsl_qspi_ofdata_to_platdata,
+	.platdata_auto_alloc_size = sizeof(struct fsl_qspi_platdata),
+	.priv_auto_alloc_size = sizeof(struct fsl_qspi_priv),
+	.probe	= fsl_qspi_probe,
+	.child_pre_probe = fsl_qspi_child_pre_probe,
+};
+#endif
-- 
2.1.0.27.g96db324

^ permalink raw reply related	[flat|nested] 4+ messages in thread