// SPDX-License-Identifier: GPL-2.0+ /* * Freescale QuadSPI driver. * * Copyright (C) 2013 Freescale Semiconductor, Inc. * Copyright (C) 2018 Bootlin * Copyright (C) 2018 exceet electronics GmbH * Copyright (C) 2018 Kontron Electronics GmbH * Copyright 2019-2020 NXP * * This driver is a ported version of Linux Freescale QSPI driver taken from * v5.5-rc1 tag having following information. * * Transition to SPI MEM interface: * Authors: * Boris Brezillon * Frieder Schrempf * Yogesh Gaur * Suresh Gupta * * Based on the original fsl-quadspi.c spi-nor driver. * Transition to spi-mem in spi-fsl-qspi.c */ #include #include #include #include #include #include #include #include #include #include #include DECLARE_GLOBAL_DATA_PTR; /* * The driver only uses one single LUT entry, that is updated on * each call of exec_op(). Index 0 is preset at boot with a basic * read operation, so let's use the last entry (15). */ #define SEQID_LUT 15 /* Registers used by the driver */ #define QUADSPI_MCR 0x00 #define QUADSPI_MCR_RESERVED_MASK GENMASK(19, 16) #define QUADSPI_MCR_MDIS_MASK BIT(14) #define QUADSPI_MCR_CLR_TXF_MASK BIT(11) #define QUADSPI_MCR_CLR_RXF_MASK BIT(10) #define QUADSPI_MCR_DDR_EN_MASK BIT(7) #define QUADSPI_MCR_END_CFG_MASK GENMASK(3, 2) #define QUADSPI_MCR_SWRSTHD_MASK BIT(1) #define QUADSPI_MCR_SWRSTSD_MASK BIT(0) #define QUADSPI_IPCR 0x08 #define QUADSPI_IPCR_SEQID(x) ((x) << 24) #define QUADSPI_FLSHCR 0x0c #define QUADSPI_FLSHCR_TCSS_MASK GENMASK(3, 0) #define QUADSPI_FLSHCR_TCSH_MASK GENMASK(11, 8) #define QUADSPI_FLSHCR_TDH_MASK GENMASK(17, 16) #define QUADSPI_BUF3CR 0x1c #define QUADSPI_BUF3CR_ALLMST_MASK BIT(31) #define QUADSPI_BUF3CR_ADATSZ(x) ((x) << 8) #define QUADSPI_BUF3CR_ADATSZ_MASK GENMASK(15, 8) #define QUADSPI_BFGENCR 0x20 #define QUADSPI_BFGENCR_SEQID(x) ((x) << 12) #define QUADSPI_BUF0IND 0x30 #define QUADSPI_BUF1IND 0x34 #define QUADSPI_BUF2IND 0x38 #define QUADSPI_SFAR 0x100 #define QUADSPI_SMPR 0x108 #define QUADSPI_SMPR_DDRSMP_MASK GENMASK(18, 16) #define QUADSPI_SMPR_FSDLY_MASK BIT(6) #define QUADSPI_SMPR_FSPHS_MASK BIT(5) #define QUADSPI_SMPR_HSENA_MASK BIT(0) #define QUADSPI_RBCT 0x110 #define QUADSPI_RBCT_WMRK_MASK GENMASK(4, 0) #define QUADSPI_RBCT_RXBRD_USEIPS BIT(8) #define QUADSPI_TBDR 0x154 #define QUADSPI_SR 0x15c #define QUADSPI_SR_IP_ACC_MASK BIT(1) #define QUADSPI_SR_AHB_ACC_MASK BIT(2) #define QUADSPI_FR 0x160 #define QUADSPI_FR_TFF_MASK BIT(0) #define QUADSPI_RSER 0x164 #define QUADSPI_RSER_TFIE BIT(0) #define QUADSPI_SPTRCLR 0x16c #define QUADSPI_SPTRCLR_IPPTRC BIT(8) #define QUADSPI_SPTRCLR_BFPTRC BIT(0) #define QUADSPI_SFA1AD 0x180 #define QUADSPI_SFA2AD 0x184 #define QUADSPI_SFB1AD 0x188 #define QUADSPI_SFB2AD 0x18c #define QUADSPI_RBDR(x) (0x200 + ((x) * 4)) #define QUADSPI_LUTKEY 0x300 #define QUADSPI_LUTKEY_VALUE 0x5AF05AF0 #define QUADSPI_LCKCR 0x304 #define QUADSPI_LCKER_LOCK BIT(0) #define QUADSPI_LCKER_UNLOCK BIT(1) #define QUADSPI_LUT_BASE 0x310 #define QUADSPI_LUT_OFFSET (SEQID_LUT * 4 * 4) #define QUADSPI_LUT_REG(idx) \ (QUADSPI_LUT_BASE + QUADSPI_LUT_OFFSET + (idx) * 4) /* Instruction set for the LUT register */ #define LUT_STOP 0 #define LUT_CMD 1 #define LUT_ADDR 2 #define LUT_DUMMY 3 #define LUT_MODE 4 #define LUT_MODE2 5 #define LUT_MODE4 6 #define LUT_FSL_READ 7 #define LUT_FSL_WRITE 8 #define LUT_JMP_ON_CS 9 #define LUT_ADDR_DDR 10 #define LUT_MODE_DDR 11 #define LUT_MODE2_DDR 12 #define LUT_MODE4_DDR 13 #define LUT_FSL_READ_DDR 14 #define LUT_FSL_WRITE_DDR 15 #define LUT_DATA_LEARN 16 /* * The PAD definitions for LUT register. * * The pad stands for the number of IO lines [0:3]. * For example, the quad read needs four IO lines, * so you should use LUT_PAD(4). */ #define LUT_PAD(x) (fls(x) - 1) /* * Macro for constructing the LUT entries with the following * register layout: * * --------------------------------------------------- * | INSTR1 | PAD1 | OPRND1 | INSTR0 | PAD0 | OPRND0 | * --------------------------------------------------- */ #define LUT_DEF(idx, ins, pad, opr) \ ((((ins) << 10) | ((pad) << 8) | (opr)) << (((idx) % 2) * 16)) /* Controller needs driver to swap endianness */ #define QUADSPI_QUIRK_SWAP_ENDIAN BIT(0) /* Controller needs 4x internal clock */ #define QUADSPI_QUIRK_4X_INT_CLK BIT(1) /* * TKT253890, the controller needs the driver to fill the txfifo with * 16 bytes at least to trigger a data transfer, even though the extra * data won't be transferred. */ #define QUADSPI_QUIRK_TKT253890 BIT(2) /* TKT245618, the controller cannot wake up from wait mode */ #define QUADSPI_QUIRK_TKT245618 BIT(3) /* * Controller adds QSPI_AMBA_BASE (base address of the mapped memory) * internally. No need to add it when setting SFXXAD and SFAR registers */ #define QUADSPI_QUIRK_BASE_INTERNAL BIT(4) /* * Controller uses TDH bits in register QUADSPI_FLSHCR. * They need to be set in accordance with the DDR/SDR mode. */ #define QUADSPI_QUIRK_USE_TDH_SETTING BIT(5) struct fsl_qspi_devtype_data { unsigned int rxfifo; unsigned int txfifo; unsigned int ahb_buf_size; unsigned int quirks; bool little_endian; }; static const struct fsl_qspi_devtype_data vybrid_data = { .rxfifo = SZ_128, .txfifo = SZ_64, .ahb_buf_size = SZ_1K, .quirks = QUADSPI_QUIRK_SWAP_ENDIAN, .little_endian = true, }; static const struct fsl_qspi_devtype_data imx6sx_data = { .rxfifo = SZ_128, .txfifo = SZ_512, .ahb_buf_size = SZ_1K, .quirks = QUADSPI_QUIRK_4X_INT_CLK | QUADSPI_QUIRK_TKT245618, .little_endian = true, }; static const struct fsl_qspi_devtype_data imx7d_data = { .rxfifo = SZ_128, .txfifo = SZ_512, .ahb_buf_size = SZ_1K, .quirks = QUADSPI_QUIRK_TKT253890 | QUADSPI_QUIRK_4X_INT_CLK | QUADSPI_QUIRK_USE_TDH_SETTING, .little_endian = true, }; static const struct fsl_qspi_devtype_data imx6ul_data = { .rxfifo = SZ_128, .txfifo = SZ_512, .ahb_buf_size = SZ_1K, .quirks = QUADSPI_QUIRK_TKT253890 | QUADSPI_QUIRK_4X_INT_CLK | QUADSPI_QUIRK_USE_TDH_SETTING, .little_endian = true, }; static const struct fsl_qspi_devtype_data ls1021a_data = { .rxfifo = SZ_128, .txfifo = SZ_64, .ahb_buf_size = SZ_1K, .quirks = 0, .little_endian = false, }; static const struct fsl_qspi_devtype_data ls1088a_data = { .rxfifo = SZ_128, .txfifo = SZ_128, .ahb_buf_size = SZ_1K, .quirks = QUADSPI_QUIRK_TKT253890, .little_endian = true, }; static const struct fsl_qspi_devtype_data ls2080a_data = { .rxfifo = SZ_128, .txfifo = SZ_64, .ahb_buf_size = SZ_1K, .quirks = QUADSPI_QUIRK_TKT253890 | QUADSPI_QUIRK_BASE_INTERNAL, .little_endian = true, }; struct fsl_qspi { struct udevice *dev; void __iomem *iobase; void __iomem *ahb_addr; u32 memmap_phy; const struct fsl_qspi_devtype_data *devtype_data; int selected; }; static inline int needs_swap_endian(struct fsl_qspi *q) { return q->devtype_data->quirks & QUADSPI_QUIRK_SWAP_ENDIAN; } static inline int needs_4x_clock(struct fsl_qspi *q) { return q->devtype_data->quirks & QUADSPI_QUIRK_4X_INT_CLK; } static inline int needs_fill_txfifo(struct fsl_qspi *q) { return q->devtype_data->quirks & QUADSPI_QUIRK_TKT253890; } static inline int needs_wakeup_wait_mode(struct fsl_qspi *q) { return q->devtype_data->quirks & QUADSPI_QUIRK_TKT245618; } static inline int needs_amba_base_offset(struct fsl_qspi *q) { return !(q->devtype_data->quirks & QUADSPI_QUIRK_BASE_INTERNAL); } static inline int needs_tdh_setting(struct fsl_qspi *q) { return q->devtype_data->quirks & QUADSPI_QUIRK_USE_TDH_SETTING; } /* * An IC bug makes it necessary to rearrange the 32-bit data. * Later chips, such as IMX6SLX, have fixed this bug. */ static inline u32 fsl_qspi_endian_xchg(struct fsl_qspi *q, u32 a) { return needs_swap_endian(q) ? __swab32(a) : a; } /* * R/W functions for big- or little-endian registers: * The QSPI controller's endianness is independent of * the CPU core's endianness. So far, although the CPU * core is little-endian the QSPI controller can use * big-endian or little-endian. */ static void qspi_writel(struct fsl_qspi *q, u32 val, void __iomem *addr) { if (q->devtype_data->little_endian) out_le32(addr, val); else out_be32(addr, val); } static u32 qspi_readl(struct fsl_qspi *q, void __iomem *addr) { if (q->devtype_data->little_endian) return in_le32(addr); return in_be32(addr); } static int fsl_qspi_check_buswidth(struct fsl_qspi *q, u8 width) { switch (width) { case 1: case 2: case 4: return 0; } return -ENOTSUPP; } static bool fsl_qspi_supports_op(struct spi_slave *slave, const struct spi_mem_op *op) { struct fsl_qspi *q = dev_get_priv(slave->dev->parent); int ret; ret = fsl_qspi_check_buswidth(q, op->cmd.buswidth); if (op->addr.nbytes) ret |= fsl_qspi_check_buswidth(q, op->addr.buswidth); if (op->dummy.nbytes) ret |= fsl_qspi_check_buswidth(q, op->dummy.buswidth); if (op->data.nbytes) ret |= fsl_qspi_check_buswidth(q, op->data.buswidth); if (ret) return false; /* * The number of instructions needed for the op, needs * to fit into a single LUT entry. */ if (op->addr.nbytes + (op->dummy.nbytes ? 1 : 0) + (op->data.nbytes ? 1 : 0) > 6) return false; /* Max 64 dummy clock cycles supported */ if (op->dummy.nbytes && (op->dummy.nbytes * 8 / op->dummy.buswidth > 64)) return false; /* Max data length, check controller limits and alignment */ if (op->data.dir == SPI_MEM_DATA_IN && (op->data.nbytes > q->devtype_data->ahb_buf_size || (op->data.nbytes > q->devtype_data->rxfifo - 4 && !IS_ALIGNED(op->data.nbytes, 8)))) return false; if (op->data.dir == SPI_MEM_DATA_OUT && op->data.nbytes > q->devtype_data->txfifo) return false; return true; } static void fsl_qspi_prepare_lut(struct fsl_qspi *q, const struct spi_mem_op *op) { void __iomem *base = q->iobase; u32 lutval[4] = {}; int lutidx = 1, i; lutval[0] |= LUT_DEF(0, LUT_CMD, LUT_PAD(op->cmd.buswidth), op->cmd.opcode); /* * For some unknown reason, using LUT_ADDR doesn't work in some * cases (at least with only one byte long addresses), so * let's use LUT_MODE to write the address bytes one by one */ for (i = 0; i < op->addr.nbytes; i++) { u8 addrbyte = op->addr.val >> (8 * (op->addr.nbytes - i - 1)); lutval[lutidx / 2] |= LUT_DEF(lutidx, LUT_MODE, LUT_PAD(op->addr.buswidth), addrbyte); lutidx++; } if (op->dummy.nbytes) { lutval[lutidx / 2] |= LUT_DEF(lutidx, LUT_DUMMY, LUT_PAD(op->dummy.buswidth), op->dummy.nbytes * 8 / op->dummy.buswidth); lutidx++; } if (op->data.nbytes) { lutval[lutidx / 2] |= LUT_DEF(lutidx, op->data.dir == SPI_MEM_DATA_IN ? LUT_FSL_READ : LUT_FSL_WRITE, LUT_PAD(op->data.buswidth), 0); lutidx++; } lutval[lutidx / 2] |= LUT_DEF(lutidx, LUT_STOP, 0, 0); /* unlock LUT */ qspi_writel(q, QUADSPI_LUTKEY_VALUE, q->iobase + QUADSPI_LUTKEY); qspi_writel(q, QUADSPI_LCKER_UNLOCK, q->iobase + QUADSPI_LCKCR); dev_dbg(q->dev, "CMD[%x] lutval[0:%x \t 1:%x \t 2:%x \t 3:%x]\n", op->cmd.opcode, lutval[0], lutval[1], lutval[2], lutval[3]); /* fill LUT */ for (i = 0; i < ARRAY_SIZE(lutval); i++) qspi_writel(q, lutval[i], base + QUADSPI_LUT_REG(i)); /* lock LUT */ qspi_writel(q, QUADSPI_LUTKEY_VALUE, q->iobase + QUADSPI_LUTKEY); qspi_writel(q, QUADSPI_LCKER_LOCK, q->iobase + QUADSPI_LCKCR); } /* * If we have changed the content of the flash by writing or erasing, or if we * read from flash with a different offset into the page buffer, we need to * invalidate the AHB buffer. If we do not do so, we may read out the wrong * data. The spec tells us reset the AHB domain and Serial Flash domain at * the same time. */ static void fsl_qspi_invalidate(struct fsl_qspi *q) { u32 reg; reg = qspi_readl(q, q->iobase + QUADSPI_MCR); reg |= QUADSPI_MCR_SWRSTHD_MASK | QUADSPI_MCR_SWRSTSD_MASK; qspi_writel(q, reg, q->iobase + QUADSPI_MCR); /* * The minimum delay : 1 AHB + 2 SFCK clocks. * Delay 1 us is enough. */ udelay(1); reg &= ~(QUADSPI_MCR_SWRSTHD_MASK | QUADSPI_MCR_SWRSTSD_MASK); qspi_writel(q, reg, q->iobase + QUADSPI_MCR); } static void fsl_qspi_select_mem(struct fsl_qspi *q, struct spi_slave *slave) { struct dm_spi_slave_platdata *plat = dev_get_parent_platdata(slave->dev); if (q->selected == plat->cs) return; q->selected = plat->cs; fsl_qspi_invalidate(q); } static void fsl_qspi_read_ahb(struct fsl_qspi *q, const struct spi_mem_op *op) { memcpy_fromio(op->data.buf.in, q->ahb_addr + q->selected * q->devtype_data->ahb_buf_size, op->data.nbytes); } static void fsl_qspi_fill_txfifo(struct fsl_qspi *q, const struct spi_mem_op *op) { void __iomem *base = q->iobase; int i; u32 val; for (i = 0; i < ALIGN_DOWN(op->data.nbytes, 4); i += 4) { memcpy(&val, op->data.buf.out + i, 4); val = fsl_qspi_endian_xchg(q, val); qspi_writel(q, val, base + QUADSPI_TBDR); } if (i < op->data.nbytes) { memcpy(&val, op->data.buf.out + i, op->data.nbytes - i); val = fsl_qspi_endian_xchg(q, val); qspi_writel(q, val, base + QUADSPI_TBDR); } if (needs_fill_txfifo(q)) { for (i = op->data.nbytes; i < 16; i += 4) qspi_writel(q, 0, base + QUADSPI_TBDR); } } static void fsl_qspi_read_rxfifo(struct fsl_qspi *q, const struct spi_mem_op *op) { void __iomem *base = q->iobase; int i; u8 *buf = op->data.buf.in; u32 val; for (i = 0; i < ALIGN_DOWN(op->data.nbytes, 4); i += 4) { val = qspi_readl(q, base + QUADSPI_RBDR(i / 4)); val = fsl_qspi_endian_xchg(q, val); memcpy(buf + i, &val, 4); } if (i < op->data.nbytes) { val = qspi_readl(q, base + QUADSPI_RBDR(i / 4)); val = fsl_qspi_endian_xchg(q, val); memcpy(buf + i, &val, op->data.nbytes - i); } } static int fsl_qspi_readl_poll_tout(struct fsl_qspi *q, void __iomem *base, u32 mask, u32 delay_us, u32 timeout_us) { u32 reg; if (!q->devtype_data->little_endian) mask = (u32)cpu_to_be32(mask); return readl_poll_timeout(base, reg, !(reg & mask), timeout_us); } static int fsl_qspi_do_op(struct fsl_qspi *q, const struct spi_mem_op *op) { void __iomem *base = q->iobase; int err = 0; /* * Always start the sequence at the same index since we update * the LUT at each exec_op() call. And also specify the DATA * length, since it's has not been specified in the LUT. */ qspi_writel(q, op->data.nbytes | QUADSPI_IPCR_SEQID(SEQID_LUT), base + QUADSPI_IPCR); /* wait for the controller being ready */ err = fsl_qspi_readl_poll_tout(q, base + QUADSPI_SR, (QUADSPI_SR_IP_ACC_MASK | QUADSPI_SR_AHB_ACC_MASK), 10, 1000); if (!err && op->data.nbytes && op->data.dir == SPI_MEM_DATA_IN) fsl_qspi_read_rxfifo(q, op); return err; } static int fsl_qspi_exec_op(struct spi_slave *slave, const struct spi_mem_op *op) { struct fsl_qspi *q = dev_get_priv(slave->dev->parent); void __iomem *base = q->iobase; u32 addr_offset = 0; int err = 0; /* wait for the controller being ready */ fsl_qspi_readl_poll_tout(q, base + QUADSPI_SR, (QUADSPI_SR_IP_ACC_MASK | QUADSPI_SR_AHB_ACC_MASK), 10, 1000); fsl_qspi_select_mem(q, slave); if (needs_amba_base_offset(q)) addr_offset = q->memmap_phy; qspi_writel(q, q->selected * q->devtype_data->ahb_buf_size + addr_offset, base + QUADSPI_SFAR); qspi_writel(q, qspi_readl(q, base + QUADSPI_MCR) | QUADSPI_MCR_CLR_RXF_MASK | QUADSPI_MCR_CLR_TXF_MASK, base + QUADSPI_MCR); qspi_writel(q, QUADSPI_SPTRCLR_BFPTRC | QUADSPI_SPTRCLR_IPPTRC, base + QUADSPI_SPTRCLR); fsl_qspi_prepare_lut(q, op); /* * If we have large chunks of data, we read them through the AHB bus * by accessing the mapped memory. In all other cases we use * IP commands to access the flash. */ if (op->data.nbytes > (q->devtype_data->rxfifo - 4) && op->data.dir == SPI_MEM_DATA_IN) { fsl_qspi_read_ahb(q, op); } else { qspi_writel(q, QUADSPI_RBCT_WMRK_MASK | QUADSPI_RBCT_RXBRD_USEIPS, base + QUADSPI_RBCT); if (op->data.nbytes && op->data.dir == SPI_MEM_DATA_OUT) fsl_qspi_fill_txfifo(q, op); err = fsl_qspi_do_op(q, op); } /* Invalidate the data in the AHB buffer. */ fsl_qspi_invalidate(q); return err; } static int fsl_qspi_adjust_op_size(struct spi_slave *slave, struct spi_mem_op *op) { struct fsl_qspi *q = dev_get_priv(slave->dev->parent); if (op->data.dir == SPI_MEM_DATA_OUT) { if (op->data.nbytes > q->devtype_data->txfifo) op->data.nbytes = q->devtype_data->txfifo; } else { if (op->data.nbytes > q->devtype_data->ahb_buf_size) op->data.nbytes = q->devtype_data->ahb_buf_size; else if (op->data.nbytes > (q->devtype_data->rxfifo - 4)) op->data.nbytes = ALIGN_DOWN(op->data.nbytes, 8); } return 0; } static int fsl_qspi_default_setup(struct fsl_qspi *q) { void __iomem *base = q->iobase; u32 reg, addr_offset = 0; /* Reset the module */ qspi_writel(q, QUADSPI_MCR_SWRSTSD_MASK | QUADSPI_MCR_SWRSTHD_MASK, base + QUADSPI_MCR); udelay(1); /* Disable the module */ qspi_writel(q, QUADSPI_MCR_MDIS_MASK | QUADSPI_MCR_RESERVED_MASK, base + QUADSPI_MCR); /* * Previous boot stages (BootROM, bootloader) might have used DDR * mode and did not clear the TDH bits. As we currently use SDR mode * only, clear the TDH bits if necessary. */ if (needs_tdh_setting(q)) qspi_writel(q, qspi_readl(q, base + QUADSPI_FLSHCR) & ~QUADSPI_FLSHCR_TDH_MASK, base + QUADSPI_FLSHCR); reg = qspi_readl(q, base + QUADSPI_SMPR); qspi_writel(q, reg & ~(QUADSPI_SMPR_FSDLY_MASK | QUADSPI_SMPR_FSPHS_MASK | QUADSPI_SMPR_HSENA_MASK | QUADSPI_SMPR_DDRSMP_MASK), base + QUADSPI_SMPR); /* We only use the buffer3 for AHB read */ qspi_writel(q, 0, base + QUADSPI_BUF0IND); qspi_writel(q, 0, base + QUADSPI_BUF1IND); qspi_writel(q, 0, base + QUADSPI_BUF2IND); qspi_writel(q, QUADSPI_BFGENCR_SEQID(SEQID_LUT), q->iobase + QUADSPI_BFGENCR); qspi_writel(q, QUADSPI_RBCT_WMRK_MASK, base + QUADSPI_RBCT); qspi_writel(q, QUADSPI_BUF3CR_ALLMST_MASK | QUADSPI_BUF3CR_ADATSZ(q->devtype_data->ahb_buf_size / 8), base + QUADSPI_BUF3CR); if (needs_amba_base_offset(q)) addr_offset = q->memmap_phy; /* * In HW there can be a maximum of four chips on two buses with * two chip selects on each bus. We use four chip selects in SW * to differentiate between the four chips. * We use ahb_buf_size for each chip and set SFA1AD, SFA2AD, SFB1AD, * SFB2AD accordingly. */ qspi_writel(q, q->devtype_data->ahb_buf_size + addr_offset, base + QUADSPI_SFA1AD); qspi_writel(q, q->devtype_data->ahb_buf_size * 2 + addr_offset, base + QUADSPI_SFA2AD); qspi_writel(q, q->devtype_data->ahb_buf_size * 3 + addr_offset, base + QUADSPI_SFB1AD); qspi_writel(q, q->devtype_data->ahb_buf_size * 4 + addr_offset, base + QUADSPI_SFB2AD); q->selected = -1; /* Enable the module */ qspi_writel(q, QUADSPI_MCR_RESERVED_MASK | QUADSPI_MCR_END_CFG_MASK, base + QUADSPI_MCR); return 0; } static const struct spi_controller_mem_ops fsl_qspi_mem_ops = { .adjust_op_size = fsl_qspi_adjust_op_size, .supports_op = fsl_qspi_supports_op, .exec_op = fsl_qspi_exec_op, }; static int fsl_qspi_probe(struct udevice *bus) { struct dm_spi_bus *dm_bus = bus->uclass_priv; struct fsl_qspi *q = dev_get_priv(bus); const void *blob = gd->fdt_blob; int node = dev_of_offset(bus); struct fdt_resource res; int ret; q->dev = bus; q->devtype_data = (struct fsl_qspi_devtype_data *) dev_get_driver_data(bus); /* find the resources */ ret = fdt_get_named_resource(blob, node, "reg", "reg-names", "QuadSPI", &res); if (ret) { dev_err(bus, "Can't get regs base addresses(ret = %d)!\n", ret); return -ENOMEM; } q->iobase = map_physmem(res.start, res.end - res.start, MAP_NOCACHE); ret = fdt_get_named_resource(blob, node, "reg", "reg-names", "QuadSPI-memory", &res); if (ret) { dev_err(bus, "Can't get AMBA base addresses(ret = %d)!\n", ret); return -ENOMEM; } q->ahb_addr = map_physmem(res.start, res.end - res.start, MAP_NOCACHE); q->memmap_phy = res.start; dm_bus->max_hz = fdtdec_get_int(blob, node, "spi-max-frequency", 66000000); fsl_qspi_default_setup(q); return 0; } static int fsl_qspi_xfer(struct udevice *dev, unsigned int bitlen, const void *dout, void *din, unsigned long flags) { return 0; } static int fsl_qspi_claim_bus(struct udevice *dev) { return 0; } static int fsl_qspi_release_bus(struct udevice *dev) { return 0; } static int fsl_qspi_set_speed(struct udevice *bus, uint speed) { return 0; } static int fsl_qspi_set_mode(struct udevice *bus, uint mode) { 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, .mem_ops = &fsl_qspi_mem_ops, }; static const struct udevice_id fsl_qspi_ids[] = { { .compatible = "fsl,vf610-qspi", .data = (ulong)&vybrid_data, }, { .compatible = "fsl,imx6sx-qspi", .data = (ulong)&imx6sx_data, }, { .compatible = "fsl,imx6ul-qspi", .data = (ulong)&imx6ul_data, }, { .compatible = "fsl,imx7d-qspi", .data = (ulong)&imx7d_data, }, { .compatible = "fsl,ls1021a-qspi", .data = (ulong)&ls1021a_data, }, { .compatible = "fsl,ls1088a-qspi", .data = (ulong)&ls1088a_data, }, { .compatible = "fsl,ls2080a-qspi", .data = (ulong)&ls2080a_data, }, { } }; U_BOOT_DRIVER(fsl_qspi) = { .name = "fsl_qspi", .id = UCLASS_SPI, .of_match = fsl_qspi_ids, .ops = &fsl_qspi_ops, .priv_auto_alloc_size = sizeof(struct fsl_qspi), .probe = fsl_qspi_probe, };