1 // SPDX-License-Identifier: GPL-2.0+
4 * Freescale QuadSPI driver.
6 * Copyright (C) 2013 Freescale Semiconductor, Inc.
7 * Copyright (C) 2018 Bootlin
8 * Copyright (C) 2018 exceet electronics GmbH
9 * Copyright (C) 2018 Kontron Electronics GmbH
10 * Copyright 2019-2020 NXP
12 * This driver is a ported version of Linux Freescale QSPI driver taken from
13 * v5.5-rc1 tag having following information.
15 * Transition to SPI MEM interface:
17 * Boris Brezillon <bbrezillon@kernel.org>
18 * Frieder Schrempf <frieder.schrempf@kontron.de>
19 * Yogesh Gaur <yogeshnarayan.gaur@nxp.com>
20 * Suresh Gupta <suresh.gupta@nxp.com>
22 * Based on the original fsl-quadspi.c spi-nor driver.
23 * Transition to spi-mem in spi-fsl-qspi.c
29 #include <linux/libfdt.h>
30 #include <linux/sizes.h>
31 #include <linux/iopoll.h>
33 #include <linux/iopoll.h>
34 #include <linux/sizes.h>
35 #include <linux/err.h>
39 DECLARE_GLOBAL_DATA_PTR;
42 * The driver only uses one single LUT entry, that is updated on
43 * each call of exec_op(). Index 0 is preset at boot with a basic
44 * read operation, so let's use the last entry (15).
48 /* Registers used by the driver */
49 #define QUADSPI_MCR 0x00
50 #define QUADSPI_MCR_RESERVED_MASK GENMASK(19, 16)
51 #define QUADSPI_MCR_MDIS_MASK BIT(14)
52 #define QUADSPI_MCR_CLR_TXF_MASK BIT(11)
53 #define QUADSPI_MCR_CLR_RXF_MASK BIT(10)
54 #define QUADSPI_MCR_DDR_EN_MASK BIT(7)
55 #define QUADSPI_MCR_END_CFG_MASK GENMASK(3, 2)
56 #define QUADSPI_MCR_SWRSTHD_MASK BIT(1)
57 #define QUADSPI_MCR_SWRSTSD_MASK BIT(0)
59 #define QUADSPI_IPCR 0x08
60 #define QUADSPI_IPCR_SEQID(x) ((x) << 24)
61 #define QUADSPI_FLSHCR 0x0c
62 #define QUADSPI_FLSHCR_TCSS_MASK GENMASK(3, 0)
63 #define QUADSPI_FLSHCR_TCSH_MASK GENMASK(11, 8)
64 #define QUADSPI_FLSHCR_TDH_MASK GENMASK(17, 16)
66 #define QUADSPI_BUF3CR 0x1c
67 #define QUADSPI_BUF3CR_ALLMST_MASK BIT(31)
68 #define QUADSPI_BUF3CR_ADATSZ(x) ((x) << 8)
69 #define QUADSPI_BUF3CR_ADATSZ_MASK GENMASK(15, 8)
71 #define QUADSPI_BFGENCR 0x20
72 #define QUADSPI_BFGENCR_SEQID(x) ((x) << 12)
74 #define QUADSPI_BUF0IND 0x30
75 #define QUADSPI_BUF1IND 0x34
76 #define QUADSPI_BUF2IND 0x38
77 #define QUADSPI_SFAR 0x100
79 #define QUADSPI_SMPR 0x108
80 #define QUADSPI_SMPR_DDRSMP_MASK GENMASK(18, 16)
81 #define QUADSPI_SMPR_FSDLY_MASK BIT(6)
82 #define QUADSPI_SMPR_FSPHS_MASK BIT(5)
83 #define QUADSPI_SMPR_HSENA_MASK BIT(0)
85 #define QUADSPI_RBCT 0x110
86 #define QUADSPI_RBCT_WMRK_MASK GENMASK(4, 0)
87 #define QUADSPI_RBCT_RXBRD_USEIPS BIT(8)
89 #define QUADSPI_TBDR 0x154
91 #define QUADSPI_SR 0x15c
92 #define QUADSPI_SR_IP_ACC_MASK BIT(1)
93 #define QUADSPI_SR_AHB_ACC_MASK BIT(2)
95 #define QUADSPI_FR 0x160
96 #define QUADSPI_FR_TFF_MASK BIT(0)
98 #define QUADSPI_RSER 0x164
99 #define QUADSPI_RSER_TFIE BIT(0)
101 #define QUADSPI_SPTRCLR 0x16c
102 #define QUADSPI_SPTRCLR_IPPTRC BIT(8)
103 #define QUADSPI_SPTRCLR_BFPTRC BIT(0)
105 #define QUADSPI_SFA1AD 0x180
106 #define QUADSPI_SFA2AD 0x184
107 #define QUADSPI_SFB1AD 0x188
108 #define QUADSPI_SFB2AD 0x18c
109 #define QUADSPI_RBDR(x) (0x200 + ((x) * 4))
111 #define QUADSPI_LUTKEY 0x300
112 #define QUADSPI_LUTKEY_VALUE 0x5AF05AF0
114 #define QUADSPI_LCKCR 0x304
115 #define QUADSPI_LCKER_LOCK BIT(0)
116 #define QUADSPI_LCKER_UNLOCK BIT(1)
118 #define QUADSPI_LUT_BASE 0x310
119 #define QUADSPI_LUT_OFFSET (SEQID_LUT * 4 * 4)
120 #define QUADSPI_LUT_REG(idx) \
121 (QUADSPI_LUT_BASE + QUADSPI_LUT_OFFSET + (idx) * 4)
123 /* Instruction set for the LUT register */
131 #define LUT_FSL_READ 7
132 #define LUT_FSL_WRITE 8
133 #define LUT_JMP_ON_CS 9
134 #define LUT_ADDR_DDR 10
135 #define LUT_MODE_DDR 11
136 #define LUT_MODE2_DDR 12
137 #define LUT_MODE4_DDR 13
138 #define LUT_FSL_READ_DDR 14
139 #define LUT_FSL_WRITE_DDR 15
140 #define LUT_DATA_LEARN 16
143 * The PAD definitions for LUT register.
145 * The pad stands for the number of IO lines [0:3].
146 * For example, the quad read needs four IO lines,
147 * so you should use LUT_PAD(4).
149 #define LUT_PAD(x) (fls(x) - 1)
152 * Macro for constructing the LUT entries with the following
155 * ---------------------------------------------------
156 * | INSTR1 | PAD1 | OPRND1 | INSTR0 | PAD0 | OPRND0 |
157 * ---------------------------------------------------
159 #define LUT_DEF(idx, ins, pad, opr) \
160 ((((ins) << 10) | ((pad) << 8) | (opr)) << (((idx) % 2) * 16))
162 /* Controller needs driver to swap endianness */
163 #define QUADSPI_QUIRK_SWAP_ENDIAN BIT(0)
165 /* Controller needs 4x internal clock */
166 #define QUADSPI_QUIRK_4X_INT_CLK BIT(1)
169 * TKT253890, the controller needs the driver to fill the txfifo with
170 * 16 bytes at least to trigger a data transfer, even though the extra
171 * data won't be transferred.
173 #define QUADSPI_QUIRK_TKT253890 BIT(2)
175 /* TKT245618, the controller cannot wake up from wait mode */
176 #define QUADSPI_QUIRK_TKT245618 BIT(3)
179 * Controller adds QSPI_AMBA_BASE (base address of the mapped memory)
180 * internally. No need to add it when setting SFXXAD and SFAR registers
182 #define QUADSPI_QUIRK_BASE_INTERNAL BIT(4)
185 * Controller uses TDH bits in register QUADSPI_FLSHCR.
186 * They need to be set in accordance with the DDR/SDR mode.
188 #define QUADSPI_QUIRK_USE_TDH_SETTING BIT(5)
190 struct fsl_qspi_devtype_data {
193 unsigned int ahb_buf_size;
198 static const struct fsl_qspi_devtype_data vybrid_data = {
201 .ahb_buf_size = SZ_1K,
202 .quirks = QUADSPI_QUIRK_SWAP_ENDIAN,
203 .little_endian = true,
206 static const struct fsl_qspi_devtype_data imx6sx_data = {
209 .ahb_buf_size = SZ_1K,
210 .quirks = QUADSPI_QUIRK_4X_INT_CLK | QUADSPI_QUIRK_TKT245618,
211 .little_endian = true,
214 static const struct fsl_qspi_devtype_data imx7d_data = {
217 .ahb_buf_size = SZ_1K,
218 .quirks = QUADSPI_QUIRK_TKT253890 | QUADSPI_QUIRK_4X_INT_CLK |
219 QUADSPI_QUIRK_USE_TDH_SETTING,
220 .little_endian = true,
223 static const struct fsl_qspi_devtype_data imx6ul_data = {
226 .ahb_buf_size = SZ_1K,
227 .quirks = QUADSPI_QUIRK_TKT253890 | QUADSPI_QUIRK_4X_INT_CLK |
228 QUADSPI_QUIRK_USE_TDH_SETTING,
229 .little_endian = true,
232 static const struct fsl_qspi_devtype_data ls1021a_data = {
235 .ahb_buf_size = SZ_1K,
237 .little_endian = false,
240 static const struct fsl_qspi_devtype_data ls1088a_data = {
243 .ahb_buf_size = SZ_1K,
244 .quirks = QUADSPI_QUIRK_TKT253890,
245 .little_endian = true,
248 static const struct fsl_qspi_devtype_data ls2080a_data = {
251 .ahb_buf_size = SZ_1K,
252 .quirks = QUADSPI_QUIRK_TKT253890 | QUADSPI_QUIRK_BASE_INTERNAL,
253 .little_endian = true,
258 void __iomem *iobase;
259 void __iomem *ahb_addr;
261 const struct fsl_qspi_devtype_data *devtype_data;
265 static inline int needs_swap_endian(struct fsl_qspi *q)
267 return q->devtype_data->quirks & QUADSPI_QUIRK_SWAP_ENDIAN;
270 static inline int needs_4x_clock(struct fsl_qspi *q)
272 return q->devtype_data->quirks & QUADSPI_QUIRK_4X_INT_CLK;
275 static inline int needs_fill_txfifo(struct fsl_qspi *q)
277 return q->devtype_data->quirks & QUADSPI_QUIRK_TKT253890;
280 static inline int needs_wakeup_wait_mode(struct fsl_qspi *q)
282 return q->devtype_data->quirks & QUADSPI_QUIRK_TKT245618;
285 static inline int needs_amba_base_offset(struct fsl_qspi *q)
287 return !(q->devtype_data->quirks & QUADSPI_QUIRK_BASE_INTERNAL);
290 static inline int needs_tdh_setting(struct fsl_qspi *q)
292 return q->devtype_data->quirks & QUADSPI_QUIRK_USE_TDH_SETTING;
296 * An IC bug makes it necessary to rearrange the 32-bit data.
297 * Later chips, such as IMX6SLX, have fixed this bug.
299 static inline u32 fsl_qspi_endian_xchg(struct fsl_qspi *q, u32 a)
301 return needs_swap_endian(q) ? __swab32(a) : a;
305 * R/W functions for big- or little-endian registers:
306 * The QSPI controller's endianness is independent of
307 * the CPU core's endianness. So far, although the CPU
308 * core is little-endian the QSPI controller can use
309 * big-endian or little-endian.
311 static void qspi_writel(struct fsl_qspi *q, u32 val, void __iomem *addr)
313 if (q->devtype_data->little_endian)
319 static u32 qspi_readl(struct fsl_qspi *q, void __iomem *addr)
321 if (q->devtype_data->little_endian)
322 return in_le32(addr);
324 return in_be32(addr);
327 static int fsl_qspi_check_buswidth(struct fsl_qspi *q, u8 width)
339 static bool fsl_qspi_supports_op(struct spi_slave *slave,
340 const struct spi_mem_op *op)
342 struct fsl_qspi *q = dev_get_priv(slave->dev->parent);
345 ret = fsl_qspi_check_buswidth(q, op->cmd.buswidth);
348 ret |= fsl_qspi_check_buswidth(q, op->addr.buswidth);
350 if (op->dummy.nbytes)
351 ret |= fsl_qspi_check_buswidth(q, op->dummy.buswidth);
354 ret |= fsl_qspi_check_buswidth(q, op->data.buswidth);
360 * The number of instructions needed for the op, needs
361 * to fit into a single LUT entry.
363 if (op->addr.nbytes +
364 (op->dummy.nbytes ? 1 : 0) +
365 (op->data.nbytes ? 1 : 0) > 6)
368 /* Max 64 dummy clock cycles supported */
369 if (op->dummy.nbytes &&
370 (op->dummy.nbytes * 8 / op->dummy.buswidth > 64))
373 /* Max data length, check controller limits and alignment */
374 if (op->data.dir == SPI_MEM_DATA_IN &&
375 (op->data.nbytes > q->devtype_data->ahb_buf_size ||
376 (op->data.nbytes > q->devtype_data->rxfifo - 4 &&
377 !IS_ALIGNED(op->data.nbytes, 8))))
380 if (op->data.dir == SPI_MEM_DATA_OUT &&
381 op->data.nbytes > q->devtype_data->txfifo)
387 static void fsl_qspi_prepare_lut(struct fsl_qspi *q,
388 const struct spi_mem_op *op)
390 void __iomem *base = q->iobase;
394 lutval[0] |= LUT_DEF(0, LUT_CMD, LUT_PAD(op->cmd.buswidth),
398 * For some unknown reason, using LUT_ADDR doesn't work in some
399 * cases (at least with only one byte long addresses), so
400 * let's use LUT_MODE to write the address bytes one by one
402 for (i = 0; i < op->addr.nbytes; i++) {
403 u8 addrbyte = op->addr.val >> (8 * (op->addr.nbytes - i - 1));
405 lutval[lutidx / 2] |= LUT_DEF(lutidx, LUT_MODE,
406 LUT_PAD(op->addr.buswidth),
411 if (op->dummy.nbytes) {
412 lutval[lutidx / 2] |= LUT_DEF(lutidx, LUT_DUMMY,
413 LUT_PAD(op->dummy.buswidth),
414 op->dummy.nbytes * 8 /
419 if (op->data.nbytes) {
420 lutval[lutidx / 2] |= LUT_DEF(lutidx,
421 op->data.dir == SPI_MEM_DATA_IN ?
422 LUT_FSL_READ : LUT_FSL_WRITE,
423 LUT_PAD(op->data.buswidth),
428 lutval[lutidx / 2] |= LUT_DEF(lutidx, LUT_STOP, 0, 0);
431 qspi_writel(q, QUADSPI_LUTKEY_VALUE, q->iobase + QUADSPI_LUTKEY);
432 qspi_writel(q, QUADSPI_LCKER_UNLOCK, q->iobase + QUADSPI_LCKCR);
434 dev_dbg(q->dev, "CMD[%x] lutval[0:%x \t 1:%x \t 2:%x \t 3:%x]\n",
435 op->cmd.opcode, lutval[0], lutval[1], lutval[2], lutval[3]);
438 for (i = 0; i < ARRAY_SIZE(lutval); i++)
439 qspi_writel(q, lutval[i], base + QUADSPI_LUT_REG(i));
442 qspi_writel(q, QUADSPI_LUTKEY_VALUE, q->iobase + QUADSPI_LUTKEY);
443 qspi_writel(q, QUADSPI_LCKER_LOCK, q->iobase + QUADSPI_LCKCR);
447 * If we have changed the content of the flash by writing or erasing, or if we
448 * read from flash with a different offset into the page buffer, we need to
449 * invalidate the AHB buffer. If we do not do so, we may read out the wrong
450 * data. The spec tells us reset the AHB domain and Serial Flash domain at
453 static void fsl_qspi_invalidate(struct fsl_qspi *q)
457 reg = qspi_readl(q, q->iobase + QUADSPI_MCR);
458 reg |= QUADSPI_MCR_SWRSTHD_MASK | QUADSPI_MCR_SWRSTSD_MASK;
459 qspi_writel(q, reg, q->iobase + QUADSPI_MCR);
462 * The minimum delay : 1 AHB + 2 SFCK clocks.
463 * Delay 1 us is enough.
467 reg &= ~(QUADSPI_MCR_SWRSTHD_MASK | QUADSPI_MCR_SWRSTSD_MASK);
468 qspi_writel(q, reg, q->iobase + QUADSPI_MCR);
471 static void fsl_qspi_select_mem(struct fsl_qspi *q, struct spi_slave *slave)
473 struct dm_spi_slave_platdata *plat =
474 dev_get_parent_platdata(slave->dev);
476 if (q->selected == plat->cs)
479 q->selected = plat->cs;
480 fsl_qspi_invalidate(q);
483 static void fsl_qspi_read_ahb(struct fsl_qspi *q, const struct spi_mem_op *op)
485 memcpy_fromio(op->data.buf.in,
486 q->ahb_addr + q->selected * q->devtype_data->ahb_buf_size,
490 static void fsl_qspi_fill_txfifo(struct fsl_qspi *q,
491 const struct spi_mem_op *op)
493 void __iomem *base = q->iobase;
497 for (i = 0; i < ALIGN_DOWN(op->data.nbytes, 4); i += 4) {
498 memcpy(&val, op->data.buf.out + i, 4);
499 val = fsl_qspi_endian_xchg(q, val);
500 qspi_writel(q, val, base + QUADSPI_TBDR);
503 if (i < op->data.nbytes) {
504 memcpy(&val, op->data.buf.out + i, op->data.nbytes - i);
505 val = fsl_qspi_endian_xchg(q, val);
506 qspi_writel(q, val, base + QUADSPI_TBDR);
509 if (needs_fill_txfifo(q)) {
510 for (i = op->data.nbytes; i < 16; i += 4)
511 qspi_writel(q, 0, base + QUADSPI_TBDR);
515 static void fsl_qspi_read_rxfifo(struct fsl_qspi *q,
516 const struct spi_mem_op *op)
518 void __iomem *base = q->iobase;
520 u8 *buf = op->data.buf.in;
523 for (i = 0; i < ALIGN_DOWN(op->data.nbytes, 4); i += 4) {
524 val = qspi_readl(q, base + QUADSPI_RBDR(i / 4));
525 val = fsl_qspi_endian_xchg(q, val);
526 memcpy(buf + i, &val, 4);
529 if (i < op->data.nbytes) {
530 val = qspi_readl(q, base + QUADSPI_RBDR(i / 4));
531 val = fsl_qspi_endian_xchg(q, val);
532 memcpy(buf + i, &val, op->data.nbytes - i);
536 static int fsl_qspi_readl_poll_tout(struct fsl_qspi *q, void __iomem *base,
537 u32 mask, u32 delay_us, u32 timeout_us)
541 if (!q->devtype_data->little_endian)
542 mask = (u32)cpu_to_be32(mask);
544 return readl_poll_timeout(base, reg, !(reg & mask), timeout_us);
547 static int fsl_qspi_do_op(struct fsl_qspi *q, const struct spi_mem_op *op)
549 void __iomem *base = q->iobase;
553 * Always start the sequence at the same index since we update
554 * the LUT at each exec_op() call. And also specify the DATA
555 * length, since it's has not been specified in the LUT.
557 qspi_writel(q, op->data.nbytes | QUADSPI_IPCR_SEQID(SEQID_LUT),
558 base + QUADSPI_IPCR);
560 /* wait for the controller being ready */
561 err = fsl_qspi_readl_poll_tout(q, base + QUADSPI_SR,
562 (QUADSPI_SR_IP_ACC_MASK |
563 QUADSPI_SR_AHB_ACC_MASK),
566 if (!err && op->data.nbytes && op->data.dir == SPI_MEM_DATA_IN)
567 fsl_qspi_read_rxfifo(q, op);
572 static int fsl_qspi_exec_op(struct spi_slave *slave,
573 const struct spi_mem_op *op)
575 struct fsl_qspi *q = dev_get_priv(slave->dev->parent);
576 void __iomem *base = q->iobase;
580 /* wait for the controller being ready */
581 fsl_qspi_readl_poll_tout(q, base + QUADSPI_SR, (QUADSPI_SR_IP_ACC_MASK |
582 QUADSPI_SR_AHB_ACC_MASK), 10, 1000);
584 fsl_qspi_select_mem(q, slave);
586 if (needs_amba_base_offset(q))
587 addr_offset = q->memmap_phy;
590 q->selected * q->devtype_data->ahb_buf_size + addr_offset,
591 base + QUADSPI_SFAR);
593 qspi_writel(q, qspi_readl(q, base + QUADSPI_MCR) |
594 QUADSPI_MCR_CLR_RXF_MASK | QUADSPI_MCR_CLR_TXF_MASK,
597 qspi_writel(q, QUADSPI_SPTRCLR_BFPTRC | QUADSPI_SPTRCLR_IPPTRC,
598 base + QUADSPI_SPTRCLR);
600 fsl_qspi_prepare_lut(q, op);
603 * If we have large chunks of data, we read them through the AHB bus
604 * by accessing the mapped memory. In all other cases we use
605 * IP commands to access the flash.
607 if (op->data.nbytes > (q->devtype_data->rxfifo - 4) &&
608 op->data.dir == SPI_MEM_DATA_IN) {
609 fsl_qspi_read_ahb(q, op);
611 qspi_writel(q, QUADSPI_RBCT_WMRK_MASK |
612 QUADSPI_RBCT_RXBRD_USEIPS, base + QUADSPI_RBCT);
614 if (op->data.nbytes && op->data.dir == SPI_MEM_DATA_OUT)
615 fsl_qspi_fill_txfifo(q, op);
617 err = fsl_qspi_do_op(q, op);
620 /* Invalidate the data in the AHB buffer. */
621 fsl_qspi_invalidate(q);
626 static int fsl_qspi_adjust_op_size(struct spi_slave *slave,
627 struct spi_mem_op *op)
629 struct fsl_qspi *q = dev_get_priv(slave->dev->parent);
631 if (op->data.dir == SPI_MEM_DATA_OUT) {
632 if (op->data.nbytes > q->devtype_data->txfifo)
633 op->data.nbytes = q->devtype_data->txfifo;
635 if (op->data.nbytes > q->devtype_data->ahb_buf_size)
636 op->data.nbytes = q->devtype_data->ahb_buf_size;
637 else if (op->data.nbytes > (q->devtype_data->rxfifo - 4))
638 op->data.nbytes = ALIGN_DOWN(op->data.nbytes, 8);
644 static int fsl_qspi_default_setup(struct fsl_qspi *q)
646 void __iomem *base = q->iobase;
647 u32 reg, addr_offset = 0;
649 /* Reset the module */
650 qspi_writel(q, QUADSPI_MCR_SWRSTSD_MASK | QUADSPI_MCR_SWRSTHD_MASK,
654 /* Disable the module */
655 qspi_writel(q, QUADSPI_MCR_MDIS_MASK | QUADSPI_MCR_RESERVED_MASK,
659 * Previous boot stages (BootROM, bootloader) might have used DDR
660 * mode and did not clear the TDH bits. As we currently use SDR mode
661 * only, clear the TDH bits if necessary.
663 if (needs_tdh_setting(q))
664 qspi_writel(q, qspi_readl(q, base + QUADSPI_FLSHCR) &
665 ~QUADSPI_FLSHCR_TDH_MASK,
666 base + QUADSPI_FLSHCR);
668 reg = qspi_readl(q, base + QUADSPI_SMPR);
669 qspi_writel(q, reg & ~(QUADSPI_SMPR_FSDLY_MASK
670 | QUADSPI_SMPR_FSPHS_MASK
671 | QUADSPI_SMPR_HSENA_MASK
672 | QUADSPI_SMPR_DDRSMP_MASK), base + QUADSPI_SMPR);
674 /* We only use the buffer3 for AHB read */
675 qspi_writel(q, 0, base + QUADSPI_BUF0IND);
676 qspi_writel(q, 0, base + QUADSPI_BUF1IND);
677 qspi_writel(q, 0, base + QUADSPI_BUF2IND);
679 qspi_writel(q, QUADSPI_BFGENCR_SEQID(SEQID_LUT),
680 q->iobase + QUADSPI_BFGENCR);
681 qspi_writel(q, QUADSPI_RBCT_WMRK_MASK, base + QUADSPI_RBCT);
682 qspi_writel(q, QUADSPI_BUF3CR_ALLMST_MASK |
683 QUADSPI_BUF3CR_ADATSZ(q->devtype_data->ahb_buf_size / 8),
684 base + QUADSPI_BUF3CR);
686 if (needs_amba_base_offset(q))
687 addr_offset = q->memmap_phy;
690 * In HW there can be a maximum of four chips on two buses with
691 * two chip selects on each bus. We use four chip selects in SW
692 * to differentiate between the four chips.
693 * We use ahb_buf_size for each chip and set SFA1AD, SFA2AD, SFB1AD,
694 * SFB2AD accordingly.
696 qspi_writel(q, q->devtype_data->ahb_buf_size + addr_offset,
697 base + QUADSPI_SFA1AD);
698 qspi_writel(q, q->devtype_data->ahb_buf_size * 2 + addr_offset,
699 base + QUADSPI_SFA2AD);
700 qspi_writel(q, q->devtype_data->ahb_buf_size * 3 + addr_offset,
701 base + QUADSPI_SFB1AD);
702 qspi_writel(q, q->devtype_data->ahb_buf_size * 4 + addr_offset,
703 base + QUADSPI_SFB2AD);
707 /* Enable the module */
708 qspi_writel(q, QUADSPI_MCR_RESERVED_MASK | QUADSPI_MCR_END_CFG_MASK,
713 static const struct spi_controller_mem_ops fsl_qspi_mem_ops = {
714 .adjust_op_size = fsl_qspi_adjust_op_size,
715 .supports_op = fsl_qspi_supports_op,
716 .exec_op = fsl_qspi_exec_op,
719 static int fsl_qspi_probe(struct udevice *bus)
721 struct dm_spi_bus *dm_bus = bus->uclass_priv;
722 struct fsl_qspi *q = dev_get_priv(bus);
723 const void *blob = gd->fdt_blob;
724 int node = dev_of_offset(bus);
725 struct fdt_resource res;
729 q->devtype_data = (struct fsl_qspi_devtype_data *)
730 dev_get_driver_data(bus);
732 /* find the resources */
733 ret = fdt_get_named_resource(blob, node, "reg", "reg-names", "QuadSPI",
736 dev_err(bus, "Can't get regs base addresses(ret = %d)!\n", ret);
740 q->iobase = map_physmem(res.start, res.end - res.start, MAP_NOCACHE);
742 ret = fdt_get_named_resource(blob, node, "reg", "reg-names",
743 "QuadSPI-memory", &res);
745 dev_err(bus, "Can't get AMBA base addresses(ret = %d)!\n", ret);
749 q->ahb_addr = map_physmem(res.start, res.end - res.start, MAP_NOCACHE);
750 q->memmap_phy = res.start;
752 dm_bus->max_hz = fdtdec_get_int(blob, node, "spi-max-frequency",
755 fsl_qspi_default_setup(q);
760 static int fsl_qspi_xfer(struct udevice *dev, unsigned int bitlen,
761 const void *dout, void *din, unsigned long flags)
766 static int fsl_qspi_claim_bus(struct udevice *dev)
771 static int fsl_qspi_release_bus(struct udevice *dev)
776 static int fsl_qspi_set_speed(struct udevice *bus, uint speed)
781 static int fsl_qspi_set_mode(struct udevice *bus, uint mode)
786 static const struct dm_spi_ops fsl_qspi_ops = {
787 .claim_bus = fsl_qspi_claim_bus,
788 .release_bus = fsl_qspi_release_bus,
789 .xfer = fsl_qspi_xfer,
790 .set_speed = fsl_qspi_set_speed,
791 .set_mode = fsl_qspi_set_mode,
792 .mem_ops = &fsl_qspi_mem_ops,
795 static const struct udevice_id fsl_qspi_ids[] = {
796 { .compatible = "fsl,vf610-qspi", .data = (ulong)&vybrid_data, },
797 { .compatible = "fsl,imx6sx-qspi", .data = (ulong)&imx6sx_data, },
798 { .compatible = "fsl,imx6ul-qspi", .data = (ulong)&imx6ul_data, },
799 { .compatible = "fsl,imx7d-qspi", .data = (ulong)&imx7d_data, },
800 { .compatible = "fsl,ls1021a-qspi", .data = (ulong)&ls1021a_data, },
801 { .compatible = "fsl,ls1088a-qspi", .data = (ulong)&ls1088a_data, },
802 { .compatible = "fsl,ls2080a-qspi", .data = (ulong)&ls2080a_data, },
806 U_BOOT_DRIVER(fsl_qspi) = {
809 .of_match = fsl_qspi_ids,
810 .ops = &fsl_qspi_ops,
811 .priv_auto_alloc_size = sizeof(struct fsl_qspi),
812 .probe = fsl_qspi_probe,