+
+/* TODO: control from sf layer to here through dm-spi */
+#if defined(CONFIG_TI_EDMA3) && !defined(CONFIG_DMA)
+void spi_flash_copy_mmap(void *data, void *offset, size_t len)
+{
+ unsigned int addr = (unsigned int) (data);
+ unsigned int edma_slot_num = 1;
+
+ /* Invalidate the area, so no writeback into the RAM races with DMA */
+ invalidate_dcache_range(addr, addr + roundup(len, ARCH_DMA_MINALIGN));
+
+ /* enable edma3 clocks */
+ enable_edma3_clocks();
+
+ /* Call edma3 api to do actual DMA transfer */
+ edma3_transfer(EDMA3_BASE, edma_slot_num, data, offset, len);
+
+ /* disable edma3 clocks */
+ disable_edma3_clocks();
+
+ *((unsigned int *)offset) += len;
+}
+#endif
+
+#ifndef CONFIG_DM_SPI
+
+static inline struct ti_qspi_priv *to_ti_qspi_priv(struct spi_slave *slave)
+{
+ return container_of(slave, struct ti_qspi_priv, slave);
+}
+
+int spi_cs_is_valid(unsigned int bus, unsigned int cs)
+{
+ return 1;
+}
+
+void spi_cs_activate(struct spi_slave *slave)
+{
+ /* CS handled in xfer */
+ return;
+}
+
+void spi_cs_deactivate(struct spi_slave *slave)
+{
+ struct ti_qspi_priv *priv = to_ti_qspi_priv(slave);
+ ti_qspi_cs_deactivate(priv);
+}
+
+void spi_init(void)
+{
+ /* nothing to do */
+}
+
+static void ti_spi_setup_spi_register(struct ti_qspi_priv *priv)
+{
+ u32 memval = 0;
+
+#ifdef CONFIG_QSPI_QUAD_SUPPORT
+ struct spi_slave *slave = &priv->slave;
+ memval |= (QSPI_CMD_READ_QUAD | QSPI_SETUP0_NUM_A_BYTES |
+ QSPI_SETUP0_NUM_D_BYTES_8_BITS |
+ QSPI_SETUP0_READ_QUAD | QSPI_CMD_WRITE |
+ QSPI_NUM_DUMMY_BITS);
+ slave->mode |= SPI_RX_QUAD;
+#else
+ memval |= QSPI_CMD_READ | QSPI_SETUP0_NUM_A_BYTES |
+ QSPI_SETUP0_NUM_D_BYTES_NO_BITS |
+ QSPI_SETUP0_READ_NORMAL | QSPI_CMD_WRITE |
+ QSPI_NUM_DUMMY_BITS;
+#endif
+
+ writel(memval, &priv->base->setup0);
+}
+
+struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
+ unsigned int max_hz, unsigned int mode)
+{
+ struct ti_qspi_priv *priv;
+
+#ifdef CONFIG_AM43XX
+ gpio_request(CONFIG_QSPI_SEL_GPIO, "qspi_gpio");
+ gpio_direction_output(CONFIG_QSPI_SEL_GPIO, 1);
+#endif
+
+ priv = spi_alloc_slave(struct ti_qspi_priv, bus, cs);
+ if (!priv) {
+ printf("SPI_error: Fail to allocate ti_qspi_priv\n");
+ return NULL;
+ }
+
+ priv->base = (struct ti_qspi_regs *)QSPI_BASE;
+ priv->mode = mode;
+#if defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX)
+ priv->ctrl_mod_mmap = (void *)CORE_CTRL_IO;
+ priv->slave.memory_map = (void *)MMAP_START_ADDR_DRA;
+ priv->fclk = QSPI_DRA7XX_FCLK;
+#else
+ priv->slave.memory_map = (void *)MMAP_START_ADDR_AM43x;
+ priv->fclk = QSPI_FCLK;
+#endif
+
+ ti_spi_set_speed(priv, max_hz);
+
+#ifdef CONFIG_TI_SPI_MMAP
+ ti_spi_setup_spi_register(priv);
+#endif
+
+ return &priv->slave;
+}
+
+void spi_free_slave(struct spi_slave *slave)
+{
+ struct ti_qspi_priv *priv = to_ti_qspi_priv(slave);
+ free(priv);
+}
+
+int spi_claim_bus(struct spi_slave *slave)
+{
+ struct ti_qspi_priv *priv = to_ti_qspi_priv(slave);
+
+ debug("%s: bus:%i cs:%i\n", __func__, priv->slave.bus, priv->slave.cs);
+ __ti_qspi_set_mode(priv, priv->mode);
+ return __ti_qspi_claim_bus(priv, priv->slave.cs);
+}
+void spi_release_bus(struct spi_slave *slave)
+{
+ struct ti_qspi_priv *priv = to_ti_qspi_priv(slave);
+
+ debug("%s: bus:%i cs:%i\n", __func__, priv->slave.bus, priv->slave.cs);
+ __ti_qspi_release_bus(priv);
+}
+
+int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout,
+ void *din, unsigned long flags)
+{
+ struct ti_qspi_priv *priv = to_ti_qspi_priv(slave);
+
+ debug("spi_xfer: bus:%i cs:%i bitlen:%i flags:%lx\n",
+ priv->slave.bus, priv->slave.cs, bitlen, flags);
+ return __ti_qspi_xfer(priv, bitlen, dout, din, flags, priv->slave.cs);
+}
+
+#else /* CONFIG_DM_SPI */
+
+static void __ti_qspi_setup_memorymap(struct ti_qspi_priv *priv,
+ struct spi_slave *slave,
+ bool enable)
+{
+ u32 memval;
+ u32 mode = slave->mode & (SPI_RX_QUAD | SPI_RX_DUAL);
+
+ if (!enable) {
+ writel(0, &priv->base->setup0);
+ return;
+ }
+
+ memval = QSPI_SETUP0_NUM_A_BYTES | QSPI_CMD_WRITE | QSPI_NUM_DUMMY_BITS;
+
+ switch (mode) {
+ case SPI_RX_QUAD:
+ memval |= QSPI_CMD_READ_QUAD;
+ memval |= QSPI_SETUP0_NUM_D_BYTES_8_BITS;
+ memval |= QSPI_SETUP0_READ_QUAD;
+ slave->mode |= SPI_RX_QUAD;
+ break;
+ case SPI_RX_DUAL:
+ memval |= QSPI_CMD_READ_DUAL;
+ memval |= QSPI_SETUP0_NUM_D_BYTES_8_BITS;
+ memval |= QSPI_SETUP0_READ_DUAL;
+ break;
+ default:
+ memval |= QSPI_CMD_READ;
+ memval |= QSPI_SETUP0_NUM_D_BYTES_NO_BITS;
+ memval |= QSPI_SETUP0_READ_NORMAL;
+ break;
+ }
+
+ writel(memval, &priv->base->setup0);
+}
+
+
+static int ti_qspi_set_speed(struct udevice *bus, uint max_hz)
+{
+ struct ti_qspi_priv *priv = dev_get_priv(bus);
+
+ ti_spi_set_speed(priv, max_hz);
+
+ return 0;
+}
+
+static int ti_qspi_set_mode(struct udevice *bus, uint mode)
+{
+ struct ti_qspi_priv *priv = dev_get_priv(bus);
+ return __ti_qspi_set_mode(priv, mode);
+}
+
+static int ti_qspi_claim_bus(struct udevice *dev)
+{
+ struct dm_spi_slave_platdata *slave_plat = dev_get_parent_platdata(dev);
+ struct spi_slave *slave = dev_get_parent_priv(dev);
+ struct ti_qspi_priv *priv;
+ struct udevice *bus;
+
+ bus = dev->parent;
+ priv = dev_get_priv(bus);
+
+ if (slave_plat->cs > priv->num_cs) {
+ debug("invalid qspi chip select\n");
+ return -EINVAL;
+ }
+
+ __ti_qspi_setup_memorymap(priv, slave, true);
+
+ return __ti_qspi_claim_bus(priv, slave_plat->cs);
+}
+
+static int ti_qspi_release_bus(struct udevice *dev)
+{
+ struct spi_slave *slave = dev_get_parent_priv(dev);
+ struct ti_qspi_priv *priv;
+ struct udevice *bus;
+
+ bus = dev->parent;
+ priv = dev_get_priv(bus);
+
+ __ti_qspi_setup_memorymap(priv, slave, false);
+ __ti_qspi_release_bus(priv);
+
+ return 0;
+}
+
+static int ti_qspi_xfer(struct udevice *dev, unsigned int bitlen,
+ const void *dout, void *din, unsigned long flags)
+{
+ struct dm_spi_slave_platdata *slave = dev_get_parent_platdata(dev);
+ struct ti_qspi_priv *priv;
+ struct udevice *bus;
+
+ bus = dev->parent;
+ priv = dev_get_priv(bus);
+
+ if (slave->cs > priv->num_cs) {
+ debug("invalid qspi chip select\n");
+ return -EINVAL;
+ }
+
+ return __ti_qspi_xfer(priv, bitlen, dout, din, flags, slave->cs);
+}
+
+static int ti_qspi_probe(struct udevice *bus)
+{
+ struct ti_qspi_priv *priv = dev_get_priv(bus);
+
+ priv->fclk = dev_get_driver_data(bus);
+
+ return 0;
+}
+
+static int ti_qspi_ofdata_to_platdata(struct udevice *bus)
+{
+ struct ti_qspi_priv *priv = dev_get_priv(bus);
+ const void *blob = gd->fdt_blob;
+ int node = bus->of_offset;
+ fdt_addr_t addr;
+ void *mmap;
+
+ priv->base = map_physmem(dev_get_addr(bus), sizeof(struct ti_qspi_regs),
+ MAP_NOCACHE);
+ priv->memory_map = map_physmem(dev_get_addr_index(bus, 1), 0,
+ MAP_NOCACHE);
+ addr = dev_get_addr_index(bus, 2);
+ mmap = map_physmem(dev_get_addr_index(bus, 2), 0, MAP_NOCACHE);
+ priv->ctrl_mod_mmap = (addr == FDT_ADDR_T_NONE) ? NULL : mmap;
+
+ priv->max_hz = fdtdec_get_int(blob, node, "spi-max-frequency", -1);
+ if (priv->max_hz < 0) {
+ debug("Error: Max frequency missing\n");
+ return -ENODEV;
+ }
+ priv->num_cs = fdtdec_get_int(blob, node, "num-cs", 4);
+
+ debug("%s: regs=<0x%x>, max-frequency=%d\n", __func__,
+ (int)priv->base, priv->max_hz);
+
+ return 0;
+}
+
+static int ti_qspi_child_pre_probe(struct udevice *dev)
+{
+ struct spi_slave *slave = dev_get_parent_priv(dev);
+ struct udevice *bus = dev_get_parent(dev);
+ struct ti_qspi_priv *priv = dev_get_priv(bus);
+
+ slave->memory_map = priv->memory_map;
+ return 0;
+}
+
+static const struct dm_spi_ops ti_qspi_ops = {
+ .claim_bus = ti_qspi_claim_bus,
+ .release_bus = ti_qspi_release_bus,
+ .xfer = ti_qspi_xfer,
+ .set_speed = ti_qspi_set_speed,
+ .set_mode = ti_qspi_set_mode,
+};
+
+static const struct udevice_id ti_qspi_ids[] = {
+ { .compatible = "ti,dra7xxx-qspi", .data = QSPI_DRA7XX_FCLK},
+ { .compatible = "ti,am4372-qspi", .data = QSPI_FCLK},
+ { }
+};
+
+U_BOOT_DRIVER(ti_qspi) = {
+ .name = "ti_qspi",
+ .id = UCLASS_SPI,
+ .of_match = ti_qspi_ids,
+ .ops = &ti_qspi_ops,
+ .ofdata_to_platdata = ti_qspi_ofdata_to_platdata,
+ .priv_auto_alloc_size = sizeof(struct ti_qspi_priv),
+ .probe = ti_qspi_probe,
+ .child_pre_probe = ti_qspi_child_pre_probe,
+};
+#endif /* CONFIG_DM_SPI */