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-rw-r--r--drivers/spi/fsl_qspi.c159
1 files changed, 122 insertions, 37 deletions
diff --git a/drivers/spi/fsl_qspi.c b/drivers/spi/fsl_qspi.c
index cb8d929..75cbab2 100644
--- a/drivers/spi/fsl_qspi.c
+++ b/drivers/spi/fsl_qspi.c
@@ -44,6 +44,8 @@ DECLARE_GLOBAL_DATA_PTR;
#define SEQID_RDEAR 11
#define SEQID_WREAR 12
#endif
+#define SEQID_WRAR 13
+#define SEQID_RDAR 14
/* QSPI CMD */
#define QSPI_CMD_PP 0x02 /* Page program (up to 256 bytes) */
@@ -63,6 +65,10 @@ DECLARE_GLOBAL_DATA_PTR;
#define QSPI_CMD_BRRD 0x16 /* Bank register read */
#define QSPI_CMD_BRWR 0x17 /* Bank register write */
+/* Used for Spansion S25FS-S family flash only. */
+#define QSPI_CMD_RDAR 0x65 /* Read any device register */
+#define QSPI_CMD_WRAR 0x71 /* Write any device register */
+
/* 4-byte address QSPI CMD - used on Spansion and some Macronix flashes */
#define QSPI_CMD_FAST_READ_4B 0x0c /* Read data bytes (high frequency) */
#define QSPI_CMD_PP_4B 0x12 /* Page program (up to 256 bytes) */
@@ -92,9 +98,9 @@ DECLARE_GLOBAL_DATA_PTR;
struct fsl_qspi_platdata {
u32 flags;
u32 speed_hz;
- u32 reg_base;
- u32 amba_base;
- u32 amba_total_size;
+ fdt_addr_t reg_base;
+ fdt_addr_t amba_base;
+ fdt_size_t amba_total_size;
u32 flash_num;
u32 num_chipselect;
};
@@ -317,6 +323,33 @@ static void qspi_set_lut(struct fsl_qspi_priv *priv)
PAD0(LUT_PAD1) | INSTR0(LUT_CMD) | OPRND1(1) |
PAD1(LUT_PAD1) | INSTR1(LUT_WRITE));
#endif
+
+ /*
+ * Read any device register.
+ * Used for Spansion S25FS-S family flash only.
+ */
+ lut_base = SEQID_RDAR * 4;
+ qspi_write32(priv->flags, &regs->lut[lut_base],
+ OPRND0(QSPI_CMD_RDAR) | PAD0(LUT_PAD1) |
+ INSTR0(LUT_CMD) | OPRND1(ADDR24BIT) |
+ PAD1(LUT_PAD1) | INSTR1(LUT_ADDR));
+ qspi_write32(priv->flags, &regs->lut[lut_base + 1],
+ OPRND0(8) | PAD0(LUT_PAD1) | INSTR0(LUT_DUMMY) |
+ OPRND1(1) | PAD1(LUT_PAD1) |
+ INSTR1(LUT_READ));
+
+ /*
+ * Write any device register.
+ * Used for Spansion S25FS-S family flash only.
+ */
+ lut_base = SEQID_WRAR * 4;
+ qspi_write32(priv->flags, &regs->lut[lut_base],
+ OPRND0(QSPI_CMD_WRAR) | PAD0(LUT_PAD1) |
+ INSTR0(LUT_CMD) | OPRND1(ADDR24BIT) |
+ PAD1(LUT_PAD1) | INSTR1(LUT_ADDR));
+ qspi_write32(priv->flags, &regs->lut[lut_base + 1],
+ OPRND0(1) | PAD0(LUT_PAD1) | INSTR0(LUT_WRITE));
+
/* Lock the LUT */
qspi_write32(priv->flags, &regs->lutkey, LUT_KEY_VALUE);
qspi_write32(priv->flags, &regs->lckcr, QSPI_LCKCR_LOCK);
@@ -510,7 +543,6 @@ static void qspi_op_rdid(struct fsl_qspi_priv *priv, u32 *rxbuf, u32 len)
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_priv *priv, u32 *rxbuf, u32 len)
{
@@ -518,6 +550,12 @@ static void qspi_op_read(struct fsl_qspi_priv *priv, u32 *rxbuf, u32 len)
u32 mcr_reg, data;
int i, size;
u32 to_or_from;
+ u32 seqid;
+
+ if (priv->cur_seqid == QSPI_CMD_RDAR)
+ seqid = SEQID_RDAR;
+ else
+ seqid = SEQID_FAST_READ;
mcr_reg = qspi_read32(priv->flags, &regs->mcr);
qspi_write32(priv->flags, &regs->mcr,
@@ -536,7 +574,7 @@ static void qspi_op_read(struct fsl_qspi_priv *priv, u32 *rxbuf, u32 len)
RX_BUFFER_SIZE : len;
qspi_write32(priv->flags, &regs->ipcr,
- (SEQID_FAST_READ << QSPI_IPCR_SEQID_SHIFT) |
+ (seqid << QSPI_IPCR_SEQID_SHIFT) |
size);
while (qspi_read32(priv->flags, &regs->sr) & QSPI_SR_BUSY_MASK)
;
@@ -548,7 +586,10 @@ static void qspi_op_read(struct fsl_qspi_priv *priv, u32 *rxbuf, u32 len)
while ((RX_BUFFER_SIZE >= size) && (size > 0)) {
data = qspi_read32(priv->flags, &regs->rbdr[i]);
data = qspi_endian_xchg(data);
- memcpy(rxbuf, &data, 4);
+ if (size < 4)
+ memcpy(rxbuf, &data, size);
+ else
+ memcpy(rxbuf, &data, 4);
rxbuf++;
size -= 4;
i++;
@@ -560,7 +601,6 @@ static void qspi_op_read(struct fsl_qspi_priv *priv, u32 *rxbuf, u32 len)
qspi_write32(priv->flags, &regs->mcr, mcr_reg);
}
-#endif
static void qspi_op_write(struct fsl_qspi_priv *priv, u8 *txbuf, u32 len)
{
@@ -601,6 +641,8 @@ static void qspi_op_write(struct fsl_qspi_priv *priv, u8 *txbuf, u32 len)
/* Default is page programming */
seqid = SEQID_PP;
+ if (priv->cur_seqid == QSPI_CMD_WRAR)
+ seqid = SEQID_WRAR;
#ifdef CONFIG_SPI_FLASH_BAR
if (priv->cur_seqid == QSPI_CMD_BRWR)
seqid = SEQID_BRWR;
@@ -725,13 +767,15 @@ int qspi_xfer(struct fsl_qspi_priv *priv, unsigned int bitlen,
return 0;
}
- if (priv->cur_seqid == QSPI_CMD_FAST_READ) {
+ if (priv->cur_seqid == QSPI_CMD_FAST_READ ||
+ priv->cur_seqid == QSPI_CMD_RDAR) {
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) {
+ } else if (priv->cur_seqid == QSPI_CMD_PP ||
+ priv->cur_seqid == QSPI_CMD_WRAR) {
wr_sfaddr = swab32(txbuf) & OFFSET_BITS_MASK;
} else if ((priv->cur_seqid == QSPI_CMD_BRWR) ||
(priv->cur_seqid == QSPI_CMD_WREAR)) {
@@ -748,6 +792,8 @@ int qspi_xfer(struct fsl_qspi_priv *priv, unsigned int bitlen,
#else
qspi_op_read(priv, din, bytes);
#endif
+ } else if (priv->cur_seqid == QSPI_CMD_RDAR) {
+ qspi_op_read(priv, din, bytes);
} else if (priv->cur_seqid == QSPI_CMD_RDID)
qspi_op_rdid(priv, din, bytes);
else if (priv->cur_seqid == QSPI_CMD_RDSR)
@@ -927,10 +973,11 @@ static int fsl_qspi_child_pre_probe(struct udevice *dev)
static int fsl_qspi_probe(struct udevice *bus)
{
- u32 total_size;
+ u32 amba_size_per_chip;
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;
+ int i;
dm_spi_bus = bus->uclass_priv;
@@ -940,8 +987,13 @@ static int fsl_qspi_probe(struct udevice *bus)
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;
+ /*
+ * QSPI SFADR width is 32bits, the max dest addr is 4GB-1.
+ * AMBA memory zone should be located on the 0~4GB space
+ * even on a 64bits cpu.
+ */
+ priv->amba_base[0] = (u32)plat->amba_base;
+ priv->amba_total_size = (u32)plat->amba_total_size;
priv->flash_num = plat->flash_num;
priv->num_chipselect = plat->num_chipselect;
@@ -951,7 +1003,22 @@ static int fsl_qspi_probe(struct udevice *bus)
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;
+ /*
+ * Assign AMBA memory zone for every chipselect
+ * QuadSPI has two channels, every channel has two chipselects.
+ * If the property 'num-cs' in dts is 2, the AMBA memory will be divided
+ * into two parts and assign to every channel. This indicate that every
+ * channel only has one valid chipselect.
+ * If the property 'num-cs' in dts is 4, the AMBA memory will be divided
+ * into four parts and assign to every chipselect.
+ * Every channel will has two valid chipselects.
+ */
+ amba_size_per_chip = priv->amba_total_size >>
+ (priv->num_chipselect >> 1);
+ for (i = 1 ; i < priv->num_chipselect ; i++)
+ priv->amba_base[i] =
+ amba_size_per_chip + priv->amba_base[i - 1];
+
/*
* Any read access to non-implemented addresses will provide
* undefined results.
@@ -962,14 +1029,30 @@ static int fsl_qspi_probe(struct udevice *bus)
* 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_write32(priv->flags, &priv->regs->sfa1ad, priv->amba_base[1]);
+ switch (priv->num_chipselect) {
+ case 2:
+ qspi_write32(priv->flags, &priv->regs->sfa2ad,
+ priv->amba_base[1]);
+ qspi_write32(priv->flags, &priv->regs->sfb1ad,
+ priv->amba_base[1] + amba_size_per_chip);
+ qspi_write32(priv->flags, &priv->regs->sfb2ad,
+ priv->amba_base[1] + amba_size_per_chip);
+ break;
+ case 4:
+ qspi_write32(priv->flags, &priv->regs->sfa2ad,
+ priv->amba_base[2]);
+ qspi_write32(priv->flags, &priv->regs->sfb1ad,
+ priv->amba_base[3]);
+ qspi_write32(priv->flags, &priv->regs->sfb2ad,
+ priv->amba_base[3] + amba_size_per_chip);
+ break;
+ default:
+ debug("Error: Unsupported chipselect number %u!\n",
+ priv->num_chipselect);
+ qspi_module_disable(priv, 1);
+ return -EINVAL;
+ }
qspi_set_lut(priv);
@@ -984,10 +1067,7 @@ static int fsl_qspi_probe(struct udevice *bus)
static int fsl_qspi_ofdata_to_platdata(struct udevice *bus)
{
- struct reg_data {
- u32 addr;
- u32 size;
- } regs_data[2];
+ struct fdt_resource res_regs, res_mem;
struct fsl_qspi_platdata *plat = bus->platdata;
const void *blob = gd->fdt_blob;
int node = bus->of_offset;
@@ -996,10 +1076,16 @@ static int fsl_qspi_ofdata_to_platdata(struct udevice *bus)
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));
+ ret = fdt_get_named_resource(blob, node, "reg", "reg-names",
+ "QuadSPI", &res_regs);
+ if (ret) {
+ debug("Error: can't get regs base addresses(ret = %d)!\n", ret);
+ return -ENOMEM;
+ }
+ ret = fdt_get_named_resource(blob, node, "reg", "reg-names",
+ "QuadSPI-memory", &res_mem);
if (ret) {
- debug("Error: can't get base addresses (ret = %d)!\n", ret);
+ debug("Error: can't get AMBA base addresses(ret = %d)!\n", ret);
return -ENOMEM;
}
@@ -1017,16 +1103,16 @@ static int fsl_qspi_ofdata_to_platdata(struct udevice *bus)
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->reg_base = res_regs.start;
+ plat->amba_base = res_mem.start;
+ plat->amba_total_size = res_mem.end - res_mem.start + 1;
plat->flash_num = flash_num;
- debug("%s: regs=<0x%x> <0x%x, 0x%x>, max-frequency=%d, endianess=%s\n",
+ debug("%s: regs=<0x%llx> <0x%llx, 0x%llx>, max-frequency=%d, endianess=%s\n",
__func__,
- plat->reg_base,
- plat->amba_base,
- plat->amba_total_size,
+ (u64)plat->reg_base,
+ (u64)plat->amba_base,
+ (u64)plat->amba_total_size,
plat->speed_hz,
plat->flags & QSPI_FLAG_REGMAP_ENDIAN_BIG ? "be" : "le"
);
@@ -1055,8 +1141,7 @@ static int fsl_qspi_claim_bus(struct udevice *dev)
bus = dev->parent;
priv = dev_get_priv(bus);
- priv->cur_amba_base =
- priv->amba_base[0] + FSL_QSPI_FLASH_SIZE * slave_plat->cs;
+ priv->cur_amba_base = priv->amba_base[slave_plat->cs];
qspi_module_disable(priv, 0);
generated by cgit v1.1 at 2024-12-29 07:32:33 +0000