--- /dev/null
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
+//
+// This file is provided under a dual BSD/GPLv2 license. When using or
+// redistributing this file, you may do so under either license.
+//
+// Copyright(c) 2018 Intel Corporation. All rights reserved.
+//
+// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
+//
+
+/*
+ * Hardware interface for audio DSP on Baytrail, Braswell and Cherrytrail.
+ */
+
+#include <linux/module.h>
+#include <sound/sof.h>
+#include <sound/sof/xtensa.h>
+#include "../ops.h"
+#include "shim.h"
+
+/* DSP memories */
+#define IRAM_OFFSET 0x0C0000
+#define IRAM_SIZE (80 * 1024)
+#define DRAM_OFFSET 0x100000
+#define DRAM_SIZE (160 * 1024)
+#define SHIM_OFFSET 0x140000
+#define SHIM_SIZE 0x100
+#define MBOX_OFFSET 0x144000
+#define MBOX_SIZE 0x1000
+#define EXCEPT_OFFSET 0x800
+
+/* DSP peripherals */
+#define DMAC0_OFFSET 0x098000
+#define DMAC1_OFFSET 0x09c000
+#define DMAC2_OFFSET 0x094000
+#define DMAC_SIZE 0x420
+#define SSP0_OFFSET 0x0a0000
+#define SSP1_OFFSET 0x0a1000
+#define SSP2_OFFSET 0x0a2000
+#define SSP3_OFFSET 0x0a4000
+#define SSP4_OFFSET 0x0a5000
+#define SSP5_OFFSET 0x0a6000
+#define SSP_SIZE 0x100
+
+#define BYT_STACK_DUMP_SIZE 32
+
+#define BYT_PCI_BAR_SIZE 0x200000
+
+#define BYT_PANIC_OFFSET(x) (((x) & GENMASK_ULL(47, 32)) >> 32)
+
+/*
+ * Debug
+ */
+
+#define MBOX_DUMP_SIZE 0x30
+
+/* BARs */
+#define BYT_DSP_BAR 0
+#define BYT_PCI_BAR 1
+#define BYT_IMR_BAR 2
+
+static const struct snd_sof_debugfs_map byt_debugfs[] = {
+ {"dmac0", BYT_DSP_BAR, DMAC0_OFFSET, DMAC_SIZE,
+ SOF_DEBUGFS_ACCESS_ALWAYS},
+ {"dmac1", BYT_DSP_BAR, DMAC1_OFFSET, DMAC_SIZE,
+ SOF_DEBUGFS_ACCESS_ALWAYS},
+ {"ssp0", BYT_DSP_BAR, SSP0_OFFSET, SSP_SIZE,
+ SOF_DEBUGFS_ACCESS_ALWAYS},
+ {"ssp1", BYT_DSP_BAR, SSP1_OFFSET, SSP_SIZE,
+ SOF_DEBUGFS_ACCESS_ALWAYS},
+ {"ssp2", BYT_DSP_BAR, SSP2_OFFSET, SSP_SIZE,
+ SOF_DEBUGFS_ACCESS_ALWAYS},
+ {"iram", BYT_DSP_BAR, IRAM_OFFSET, IRAM_SIZE,
+ SOF_DEBUGFS_ACCESS_D0_ONLY},
+ {"dram", BYT_DSP_BAR, DRAM_OFFSET, DRAM_SIZE,
+ SOF_DEBUGFS_ACCESS_D0_ONLY},
+ {"shim", BYT_DSP_BAR, SHIM_OFFSET, SHIM_SIZE,
+ SOF_DEBUGFS_ACCESS_ALWAYS},
+};
+
+static const struct snd_sof_debugfs_map cht_debugfs[] = {
+ {"dmac0", BYT_DSP_BAR, DMAC0_OFFSET, DMAC_SIZE,
+ SOF_DEBUGFS_ACCESS_ALWAYS},
+ {"dmac1", BYT_DSP_BAR, DMAC1_OFFSET, DMAC_SIZE,
+ SOF_DEBUGFS_ACCESS_ALWAYS},
+ {"dmac2", BYT_DSP_BAR, DMAC2_OFFSET, DMAC_SIZE,
+ SOF_DEBUGFS_ACCESS_ALWAYS},
+ {"ssp0", BYT_DSP_BAR, SSP0_OFFSET, SSP_SIZE,
+ SOF_DEBUGFS_ACCESS_ALWAYS},
+ {"ssp1", BYT_DSP_BAR, SSP1_OFFSET, SSP_SIZE,
+ SOF_DEBUGFS_ACCESS_ALWAYS},
+ {"ssp2", BYT_DSP_BAR, SSP2_OFFSET, SSP_SIZE,
+ SOF_DEBUGFS_ACCESS_ALWAYS},
+ {"ssp3", BYT_DSP_BAR, SSP3_OFFSET, SSP_SIZE,
+ SOF_DEBUGFS_ACCESS_ALWAYS},
+ {"ssp4", BYT_DSP_BAR, SSP4_OFFSET, SSP_SIZE,
+ SOF_DEBUGFS_ACCESS_ALWAYS},
+ {"ssp5", BYT_DSP_BAR, SSP5_OFFSET, SSP_SIZE,
+ SOF_DEBUGFS_ACCESS_ALWAYS},
+ {"iram", BYT_DSP_BAR, IRAM_OFFSET, IRAM_SIZE,
+ SOF_DEBUGFS_ACCESS_D0_ONLY},
+ {"dram", BYT_DSP_BAR, DRAM_OFFSET, DRAM_SIZE,
+ SOF_DEBUGFS_ACCESS_D0_ONLY},
+ {"shim", BYT_DSP_BAR, SHIM_OFFSET, SHIM_SIZE,
+ SOF_DEBUGFS_ACCESS_ALWAYS},
+};
+
+static void byt_host_done(struct snd_sof_dev *sdev);
+static void byt_dsp_done(struct snd_sof_dev *sdev);
+static void byt_get_reply(struct snd_sof_dev *sdev);
+
+/*
+ * IPC Firmware ready.
+ */
+static void byt_get_windows(struct snd_sof_dev *sdev)
+{
+ struct sof_ipc_window_elem *elem;
+ u32 outbox_offset = 0;
+ u32 stream_offset = 0;
+ u32 inbox_offset = 0;
+ u32 outbox_size = 0;
+ u32 stream_size = 0;
+ u32 inbox_size = 0;
+ int i;
+
+ if (!sdev->info_window) {
+ dev_err(sdev->dev, "error: have no window info\n");
+ return;
+ }
+
+ for (i = 0; i < sdev->info_window->num_windows; i++) {
+ elem = &sdev->info_window->window[i];
+
+ switch (elem->type) {
+ case SOF_IPC_REGION_UPBOX:
+ inbox_offset = elem->offset + MBOX_OFFSET;
+ inbox_size = elem->size;
+ snd_sof_debugfs_io_item(sdev,
+ sdev->bar[BYT_DSP_BAR] +
+ inbox_offset,
+ elem->size, "inbox",
+ SOF_DEBUGFS_ACCESS_D0_ONLY);
+ break;
+ case SOF_IPC_REGION_DOWNBOX:
+ outbox_offset = elem->offset + MBOX_OFFSET;
+ outbox_size = elem->size;
+ snd_sof_debugfs_io_item(sdev,
+ sdev->bar[BYT_DSP_BAR] +
+ outbox_offset,
+ elem->size, "outbox",
+ SOF_DEBUGFS_ACCESS_D0_ONLY);
+ break;
+ case SOF_IPC_REGION_TRACE:
+ snd_sof_debugfs_io_item(sdev,
+ sdev->bar[BYT_DSP_BAR] +
+ elem->offset +
+ MBOX_OFFSET,
+ elem->size, "etrace",
+ SOF_DEBUGFS_ACCESS_D0_ONLY);
+ break;
+ case SOF_IPC_REGION_DEBUG:
+ snd_sof_debugfs_io_item(sdev,
+ sdev->bar[BYT_DSP_BAR] +
+ elem->offset +
+ MBOX_OFFSET,
+ elem->size, "debug",
+ SOF_DEBUGFS_ACCESS_D0_ONLY);
+ break;
+ case SOF_IPC_REGION_STREAM:
+ stream_offset = elem->offset + MBOX_OFFSET;
+ stream_size = elem->size;
+ snd_sof_debugfs_io_item(sdev,
+ sdev->bar[BYT_DSP_BAR] +
+ stream_offset,
+ elem->size, "stream",
+ SOF_DEBUGFS_ACCESS_D0_ONLY);
+ break;
+ case SOF_IPC_REGION_REGS:
+ snd_sof_debugfs_io_item(sdev,
+ sdev->bar[BYT_DSP_BAR] +
+ elem->offset +
+ MBOX_OFFSET,
+ elem->size, "regs",
+ SOF_DEBUGFS_ACCESS_D0_ONLY);
+ break;
+ case SOF_IPC_REGION_EXCEPTION:
+ sdev->dsp_oops_offset = elem->offset + MBOX_OFFSET;
+ snd_sof_debugfs_io_item(sdev,
+ sdev->bar[BYT_DSP_BAR] +
+ elem->offset +
+ MBOX_OFFSET,
+ elem->size, "exception",
+ SOF_DEBUGFS_ACCESS_D0_ONLY);
+ break;
+ default:
+ dev_err(sdev->dev, "error: get illegal window info\n");
+ return;
+ }
+ }
+
+ if (outbox_size == 0 || inbox_size == 0) {
+ dev_err(sdev->dev, "error: get illegal mailbox window\n");
+ return;
+ }
+
+ snd_sof_dsp_mailbox_init(sdev, inbox_offset, inbox_size,
+ outbox_offset, outbox_size);
+ sdev->stream_box.offset = stream_offset;
+ sdev->stream_box.size = stream_size;
+
+ dev_dbg(sdev->dev, " mailbox upstream 0x%x - size 0x%x\n",
+ inbox_offset, inbox_size);
+ dev_dbg(sdev->dev, " mailbox downstream 0x%x - size 0x%x\n",
+ outbox_offset, outbox_size);
+ dev_dbg(sdev->dev, " stream region 0x%x - size 0x%x\n",
+ stream_offset, stream_size);
+}
+
+/* check for ABI compatibility and create memory windows on first boot */
+static int byt_fw_ready(struct snd_sof_dev *sdev, u32 msg_id)
+{
+ struct sof_ipc_fw_ready *fw_ready = &sdev->fw_ready;
+ u32 offset;
+ int ret;
+
+ /* mailbox must be on 4k boundary */
+ offset = MBOX_OFFSET;
+
+ dev_dbg(sdev->dev, "ipc: DSP is ready 0x%8.8x offset 0x%x\n",
+ msg_id, offset);
+
+ /* no need to re-check version/ABI for subsequent boots */
+ if (!sdev->first_boot)
+ return 0;
+
+ /* copy data from the DSP FW ready offset */
+ sof_block_read(sdev, sdev->mmio_bar, offset, fw_ready,
+ sizeof(*fw_ready));
+
+ snd_sof_dsp_mailbox_init(sdev, fw_ready->dspbox_offset,
+ fw_ready->dspbox_size,
+ fw_ready->hostbox_offset,
+ fw_ready->hostbox_size);
+
+ /* make sure ABI version is compatible */
+ ret = snd_sof_ipc_valid(sdev);
+ if (ret < 0)
+ return ret;
+
+ /* now check for extended data */
+ snd_sof_fw_parse_ext_data(sdev, sdev->mmio_bar, MBOX_OFFSET +
+ sizeof(struct sof_ipc_fw_ready));
+
+ byt_get_windows(sdev);
+
+ return 0;
+}
+
+/*
+ * Debug
+ */
+
+static void byt_get_registers(struct snd_sof_dev *sdev,
+ struct sof_ipc_dsp_oops_xtensa *xoops,
+ struct sof_ipc_panic_info *panic_info,
+ u32 *stack, size_t stack_words)
+{
+ /* first read regsisters */
+ sof_mailbox_read(sdev, sdev->dsp_oops_offset, xoops, sizeof(*xoops));
+
+ /* then get panic info */
+ sof_mailbox_read(sdev, sdev->dsp_oops_offset + sizeof(*xoops),
+ panic_info, sizeof(*panic_info));
+
+ /* then get the stack */
+ sof_mailbox_read(sdev, sdev->dsp_oops_offset + sizeof(*xoops) +
+ sizeof(*panic_info), stack,
+ stack_words * sizeof(u32));
+}
+
+static void byt_dump(struct snd_sof_dev *sdev, u32 flags)
+{
+ struct sof_ipc_dsp_oops_xtensa xoops;
+ struct sof_ipc_panic_info panic_info;
+ u32 stack[BYT_STACK_DUMP_SIZE];
+ u32 status, panic;
+
+ /* now try generic SOF status messages */
+ status = snd_sof_dsp_read(sdev, BYT_DSP_BAR, SHIM_IPCD);
+ panic = snd_sof_dsp_read(sdev, BYT_DSP_BAR, SHIM_IPCX);
+ byt_get_registers(sdev, &xoops, &panic_info, stack,
+ BYT_STACK_DUMP_SIZE);
+ snd_sof_get_status(sdev, status, panic, &xoops, &panic_info, stack,
+ BYT_STACK_DUMP_SIZE);
+}
+
+/*
+ * IPC Doorbell IRQ handler and thread.
+ */
+
+static irqreturn_t byt_irq_handler(int irq, void *context)
+{
+ struct snd_sof_dev *sdev = context;
+ u64 isr;
+ int ret = IRQ_NONE;
+
+ /* Interrupt arrived, check src */
+ isr = snd_sof_dsp_read64(sdev, BYT_DSP_BAR, SHIM_ISRX);
+ if (isr & (SHIM_ISRX_DONE | SHIM_ISRX_BUSY))
+ ret = IRQ_WAKE_THREAD;
+
+ return ret;
+}
+
+static irqreturn_t byt_irq_thread(int irq, void *context)
+{
+ struct snd_sof_dev *sdev = context;
+ u64 ipcx, ipcd;
+ u64 imrx;
+
+ imrx = snd_sof_dsp_read64(sdev, BYT_DSP_BAR, SHIM_IMRX);
+ ipcx = snd_sof_dsp_read64(sdev, BYT_DSP_BAR, SHIM_IPCX);
+
+ /* reply message from DSP */
+ if (ipcx & SHIM_BYT_IPCX_DONE &&
+ !(imrx & SHIM_IMRX_DONE)) {
+ /* Mask Done interrupt before first */
+ snd_sof_dsp_update_bits64_unlocked(sdev, BYT_DSP_BAR,
+ SHIM_IMRX,
+ SHIM_IMRX_DONE,
+ SHIM_IMRX_DONE);
+ /*
+ * handle immediate reply from DSP core. If the msg is
+ * found, set done bit in cmd_done which is called at the
+ * end of message processing function, else set it here
+ * because the done bit can't be set in cmd_done function
+ * which is triggered by msg
+ */
+ byt_get_reply(sdev);
+ snd_sof_ipc_reply(sdev, ipcx);
+
+ byt_dsp_done(sdev);
+ }
+
+ /* new message from DSP */
+ ipcd = snd_sof_dsp_read64(sdev, BYT_DSP_BAR, SHIM_IPCD);
+ if (ipcd & SHIM_BYT_IPCD_BUSY &&
+ !(imrx & SHIM_IMRX_BUSY)) {
+ /* Mask Busy interrupt before return */
+ snd_sof_dsp_update_bits64_unlocked(sdev, BYT_DSP_BAR,
+ SHIM_IMRX,
+ SHIM_IMRX_BUSY,
+ SHIM_IMRX_BUSY);
+
+ /* Handle messages from DSP Core */
+ if ((ipcd & SOF_IPC_PANIC_MAGIC_MASK) == SOF_IPC_PANIC_MAGIC) {
+ snd_sof_dsp_panic(sdev, BYT_PANIC_OFFSET(ipcd) +
+ MBOX_OFFSET);
+ } else {
+ snd_sof_ipc_msgs_rx(sdev);
+ }
+
+ byt_host_done(sdev);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int byt_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg)
+{
+ u64 cmd = msg->header;
+
+ /* send the message */
+ sof_mailbox_write(sdev, sdev->host_box.offset, msg->msg_data,
+ msg->msg_size);
+ snd_sof_dsp_write64(sdev, BYT_DSP_BAR, SHIM_IPCX,
+ cmd | SHIM_BYT_IPCX_BUSY);
+
+ return 0;
+}
+
+static void byt_get_reply(struct snd_sof_dev *sdev)
+{
+ struct snd_sof_ipc_msg *msg = sdev->msg;
+ struct sof_ipc_reply reply;
+ unsigned long flags;
+ int ret = 0;
+
+ /*
+ * Sometimes, there is unexpected reply ipc arriving. The reply
+ * ipc belongs to none of the ipcs sent from driver.
+ * In this case, the driver must ignore the ipc.
+ */
+ if (!msg) {
+ dev_warn(sdev->dev, "unexpected ipc interrupt raised!\n");
+ return;
+ }
+
+ /* get reply */
+ sof_mailbox_read(sdev, sdev->host_box.offset, &reply, sizeof(reply));
+
+ spin_lock_irqsave(&sdev->ipc_lock, flags);
+
+ if (reply.error < 0) {
+ memcpy(msg->reply_data, &reply, sizeof(reply));
+ ret = reply.error;
+ } else {
+ /* reply correct size ? */
+ if (reply.hdr.size != msg->reply_size) {
+ dev_err(sdev->dev, "error: reply expected %zu got %u bytes\n",
+ msg->reply_size, reply.hdr.size);
+ ret = -EINVAL;
+ }
+
+ /* read the message */
+ if (msg->reply_size > 0)
+ sof_mailbox_read(sdev, sdev->host_box.offset,
+ msg->reply_data, msg->reply_size);
+ }
+
+ msg->reply_error = ret;
+
+ spin_unlock_irqrestore(&sdev->ipc_lock, flags);
+}
+
+static void byt_host_done(struct snd_sof_dev *sdev)
+{
+ /* clear BUSY bit and set DONE bit - accept new messages */
+ snd_sof_dsp_update_bits64_unlocked(sdev, BYT_DSP_BAR, SHIM_IPCD,
+ SHIM_BYT_IPCD_BUSY |
+ SHIM_BYT_IPCD_DONE,
+ SHIM_BYT_IPCD_DONE);
+
+ /* unmask busy interrupt */
+ snd_sof_dsp_update_bits64_unlocked(sdev, BYT_DSP_BAR, SHIM_IMRX,
+ SHIM_IMRX_BUSY, 0);
+}
+
+static void byt_dsp_done(struct snd_sof_dev *sdev)
+{
+ /* clear DONE bit - tell DSP we have completed */
+ snd_sof_dsp_update_bits64_unlocked(sdev, BYT_DSP_BAR, SHIM_IPCX,
+ SHIM_BYT_IPCX_DONE, 0);
+
+ /* unmask Done interrupt */
+ snd_sof_dsp_update_bits64_unlocked(sdev, BYT_DSP_BAR, SHIM_IMRX,
+ SHIM_IMRX_DONE, 0);
+}
+
+/*
+ * DSP control.
+ */
+
+static int byt_run(struct snd_sof_dev *sdev)
+{
+ int tries = 10;
+
+ /* release stall and wait to unstall */
+ snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_CSR,
+ SHIM_BYT_CSR_STALL, 0x0);
+ while (tries--) {
+ if (!(snd_sof_dsp_read64(sdev, BYT_DSP_BAR, SHIM_CSR) &
+ SHIM_BYT_CSR_PWAITMODE))
+ break;
+ msleep(100);
+ }
+ if (tries < 0) {
+ dev_err(sdev->dev, "error: unable to run DSP firmware\n");
+ byt_dump(sdev, SOF_DBG_REGS | SOF_DBG_MBOX);
+ return -ENODEV;
+ }
+
+ /* return init core mask */
+ return 1;
+}
+
+static int byt_reset(struct snd_sof_dev *sdev)
+{
+ /* put DSP into reset, set reset vector and stall */
+ snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_CSR,
+ SHIM_BYT_CSR_RST | SHIM_BYT_CSR_VECTOR_SEL |
+ SHIM_BYT_CSR_STALL,
+ SHIM_BYT_CSR_RST | SHIM_BYT_CSR_VECTOR_SEL |
+ SHIM_BYT_CSR_STALL);
+
+ usleep_range(10, 15);
+
+ /* take DSP out of reset and keep stalled for FW loading */
+ snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_CSR,
+ SHIM_BYT_CSR_RST, 0);
+
+ return 0;
+}
+
+/* Baytrail DAIs */
+static struct snd_soc_dai_driver byt_dai[] = {
+{
+ .name = "ssp0-port",
+},
+{
+ .name = "ssp1-port",
+},
+{
+ .name = "ssp2-port",
+},
+{
+ .name = "ssp3-port",
+},
+{
+ .name = "ssp4-port",
+},
+{
+ .name = "ssp5-port",
+},
+};
+
+/*
+ * Probe and remove.
+ */
+
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_MERRIFIELD)
+
+static int tangier_pci_probe(struct snd_sof_dev *sdev)
+{
+ struct snd_sof_pdata *pdata = sdev->pdata;
+ const struct sof_dev_desc *desc = pdata->desc;
+ struct pci_dev *pci = to_pci_dev(sdev->dev);
+ u32 base, size;
+ int ret;
+
+ /* DSP DMA can only access low 31 bits of host memory */
+ ret = dma_coerce_mask_and_coherent(&pci->dev, DMA_BIT_MASK(31));
+ if (ret < 0) {
+ dev_err(sdev->dev, "error: failed to set DMA mask %d\n", ret);
+ return ret;
+ }
+
+ /* LPE base */
+ base = pci_resource_start(pci, desc->resindex_lpe_base) - IRAM_OFFSET;
+ size = BYT_PCI_BAR_SIZE;
+
+ dev_dbg(sdev->dev, "LPE PHY base at 0x%x size 0x%x", base, size);
+ sdev->bar[BYT_DSP_BAR] = devm_ioremap(sdev->dev, base, size);
+ if (!sdev->bar[BYT_DSP_BAR]) {
+ dev_err(sdev->dev, "error: failed to ioremap LPE base 0x%x size 0x%x\n",
+ base, size);
+ return -ENODEV;
+ }
+ dev_dbg(sdev->dev, "LPE VADDR %p\n", sdev->bar[BYT_DSP_BAR]);
+
+ /* IMR base - optional */
+ if (desc->resindex_imr_base == -1)
+ goto irq;
+
+ base = pci_resource_start(pci, desc->resindex_imr_base);
+ size = pci_resource_len(pci, desc->resindex_imr_base);
+
+ /* some BIOSes don't map IMR */
+ if (base == 0x55aa55aa || base == 0x0) {
+ dev_info(sdev->dev, "IMR not set by BIOS. Ignoring\n");
+ goto irq;
+ }
+
+ dev_dbg(sdev->dev, "IMR base at 0x%x size 0x%x", base, size);
+ sdev->bar[BYT_IMR_BAR] = devm_ioremap(sdev->dev, base, size);
+ if (!sdev->bar[BYT_IMR_BAR]) {
+ dev_err(sdev->dev, "error: failed to ioremap IMR base 0x%x size 0x%x\n",
+ base, size);
+ return -ENODEV;
+ }
+ dev_dbg(sdev->dev, "IMR VADDR %p\n", sdev->bar[BYT_IMR_BAR]);
+
+irq:
+ /* register our IRQ */
+ sdev->ipc_irq = pci->irq;
+ dev_dbg(sdev->dev, "using IRQ %d\n", sdev->ipc_irq);
+ ret = devm_request_threaded_irq(sdev->dev, sdev->ipc_irq,
+ byt_irq_handler, byt_irq_thread,
+ 0, "AudioDSP", sdev);
+ if (ret < 0) {
+ dev_err(sdev->dev, "error: failed to register IRQ %d\n",
+ sdev->ipc_irq);
+ return ret;
+ }
+
+ /* enable Interrupt from both sides */
+ snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_IMRX, 0x3, 0x0);
+ snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_IMRD, 0x3, 0x0);
+
+ /* set default mailbox offset for FW ready message */
+ sdev->dsp_box.offset = MBOX_OFFSET;
+
+ return ret;
+}
+
+const struct snd_sof_dsp_ops sof_tng_ops = {
+ /* device init */
+ .probe = tangier_pci_probe,
+
+ /* DSP core boot / reset */
+ .run = byt_run,
+ .reset = byt_reset,
+
+ /* Register IO */
+ .write = sof_io_write,
+ .read = sof_io_read,
+ .write64 = sof_io_write64,
+ .read64 = sof_io_read64,
+
+ /* Block IO */
+ .block_read = sof_block_read,
+ .block_write = sof_block_write,
+
+ /* doorbell */
+ .irq_handler = byt_irq_handler,
+ .irq_thread = byt_irq_thread,
+
+ /* ipc */
+ .send_msg = byt_send_msg,
+ .fw_ready = byt_fw_ready,
+
+ .ipc_msg_data = intel_ipc_msg_data,
+ .ipc_pcm_params = intel_ipc_pcm_params,
+
+ /* debug */
+ .debug_map = byt_debugfs,
+ .debug_map_count = ARRAY_SIZE(byt_debugfs),
+ .dbg_dump = byt_dump,
+
+ /* stream callbacks */
+ .pcm_open = intel_pcm_open,
+ .pcm_close = intel_pcm_close,
+
+ /* module loading */
+ .load_module = snd_sof_parse_module_memcpy,
+
+ /*Firmware loading */
+ .load_firmware = snd_sof_load_firmware_memcpy,
+
+ /* DAI drivers */
+ .drv = byt_dai,
+ .num_drv = 3, /* we have only 3 SSPs on byt*/
+};
+EXPORT_SYMBOL(sof_tng_ops);
+
+const struct sof_intel_dsp_desc tng_chip_info = {
+ .cores_num = 1,
+ .cores_mask = 1,
+};
+EXPORT_SYMBOL(tng_chip_info);
+
+#endif /* CONFIG_SND_SOC_SOF_MERRIFIELD */
+
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL)
+
+static int byt_acpi_probe(struct snd_sof_dev *sdev)
+{
+ struct snd_sof_pdata *pdata = sdev->pdata;
+ const struct sof_dev_desc *desc = pdata->desc;
+ struct platform_device *pdev =
+ container_of(sdev->dev, struct platform_device, dev);
+ struct resource *mmio;
+ u32 base, size;
+ int ret;
+
+ /* DSP DMA can only access low 31 bits of host memory */
+ ret = dma_coerce_mask_and_coherent(sdev->dev, DMA_BIT_MASK(31));
+ if (ret < 0) {
+ dev_err(sdev->dev, "error: failed to set DMA mask %d\n", ret);
+ return ret;
+ }
+
+ /* LPE base */
+ mmio = platform_get_resource(pdev, IORESOURCE_MEM,
+ desc->resindex_lpe_base);
+ if (mmio) {
+ base = mmio->start;
+ size = resource_size(mmio);
+ } else {
+ dev_err(sdev->dev, "error: failed to get LPE base at idx %d\n",
+ desc->resindex_lpe_base);
+ return -EINVAL;
+ }
+
+ dev_dbg(sdev->dev, "LPE PHY base at 0x%x size 0x%x", base, size);
+ sdev->bar[BYT_DSP_BAR] = devm_ioremap(sdev->dev, base, size);
+ if (!sdev->bar[BYT_DSP_BAR]) {
+ dev_err(sdev->dev, "error: failed to ioremap LPE base 0x%x size 0x%x\n",
+ base, size);
+ return -ENODEV;
+ }
+ dev_dbg(sdev->dev, "LPE VADDR %p\n", sdev->bar[BYT_DSP_BAR]);
+
+ /* TODO: add offsets */
+ sdev->mmio_bar = BYT_DSP_BAR;
+ sdev->mailbox_bar = BYT_DSP_BAR;
+
+ /* IMR base - optional */
+ if (desc->resindex_imr_base == -1)
+ goto irq;
+
+ mmio = platform_get_resource(pdev, IORESOURCE_MEM,
+ desc->resindex_imr_base);
+ if (mmio) {
+ base = mmio->start;
+ size = resource_size(mmio);
+ } else {
+ dev_err(sdev->dev, "error: failed to get IMR base at idx %d\n",
+ desc->resindex_imr_base);
+ return -ENODEV;
+ }
+
+ /* some BIOSes don't map IMR */
+ if (base == 0x55aa55aa || base == 0x0) {
+ dev_info(sdev->dev, "IMR not set by BIOS. Ignoring\n");
+ goto irq;
+ }
+
+ dev_dbg(sdev->dev, "IMR base at 0x%x size 0x%x", base, size);
+ sdev->bar[BYT_IMR_BAR] = devm_ioremap(sdev->dev, base, size);
+ if (!sdev->bar[BYT_IMR_BAR]) {
+ dev_err(sdev->dev, "error: failed to ioremap IMR base 0x%x size 0x%x\n",
+ base, size);
+ return -ENODEV;
+ }
+ dev_dbg(sdev->dev, "IMR VADDR %p\n", sdev->bar[BYT_IMR_BAR]);
+
+irq:
+ /* register our IRQ */
+ sdev->ipc_irq = platform_get_irq(pdev, desc->irqindex_host_ipc);
+ if (sdev->ipc_irq < 0) {
+ dev_err(sdev->dev, "error: failed to get IRQ at index %d\n",
+ desc->irqindex_host_ipc);
+ return sdev->ipc_irq;
+ }
+
+ dev_dbg(sdev->dev, "using IRQ %d\n", sdev->ipc_irq);
+ ret = devm_request_threaded_irq(sdev->dev, sdev->ipc_irq,
+ byt_irq_handler, byt_irq_thread,
+ IRQF_SHARED, "AudioDSP", sdev);
+ if (ret < 0) {
+ dev_err(sdev->dev, "error: failed to register IRQ %d\n",
+ sdev->ipc_irq);
+ return ret;
+ }
+
+ /* enable Interrupt from both sides */
+ snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_IMRX, 0x3, 0x0);
+ snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_IMRD, 0x3, 0x0);
+
+ /* set default mailbox offset for FW ready message */
+ sdev->dsp_box.offset = MBOX_OFFSET;
+
+ return ret;
+}
+
+/* baytrail ops */
+const struct snd_sof_dsp_ops sof_byt_ops = {
+ /* device init */
+ .probe = byt_acpi_probe,
+
+ /* DSP core boot / reset */
+ .run = byt_run,
+ .reset = byt_reset,
+
+ /* Register IO */
+ .write = sof_io_write,
+ .read = sof_io_read,
+ .write64 = sof_io_write64,
+ .read64 = sof_io_read64,
+
+ /* Block IO */
+ .block_read = sof_block_read,
+ .block_write = sof_block_write,
+
+ /* doorbell */
+ .irq_handler = byt_irq_handler,
+ .irq_thread = byt_irq_thread,
+
+ /* ipc */
+ .send_msg = byt_send_msg,
+ .fw_ready = byt_fw_ready,
+
+ .ipc_msg_data = intel_ipc_msg_data,
+ .ipc_pcm_params = intel_ipc_pcm_params,
+
+ /* debug */
+ .debug_map = byt_debugfs,
+ .debug_map_count = ARRAY_SIZE(byt_debugfs),
+ .dbg_dump = byt_dump,
+
+ /* stream callbacks */
+ .pcm_open = intel_pcm_open,
+ .pcm_close = intel_pcm_close,
+
+ /* module loading */
+ .load_module = snd_sof_parse_module_memcpy,
+
+ /*Firmware loading */
+ .load_firmware = snd_sof_load_firmware_memcpy,
+
+ /* DAI drivers */
+ .drv = byt_dai,
+ .num_drv = 3, /* we have only 3 SSPs on byt*/
+};
+EXPORT_SYMBOL(sof_byt_ops);
+
+const struct sof_intel_dsp_desc byt_chip_info = {
+ .cores_num = 1,
+ .cores_mask = 1,
+};
+EXPORT_SYMBOL(byt_chip_info);
+
+/* cherrytrail and braswell ops */
+const struct snd_sof_dsp_ops sof_cht_ops = {
+ /* device init */
+ .probe = byt_acpi_probe,
+
+ /* DSP core boot / reset */
+ .run = byt_run,
+ .reset = byt_reset,
+
+ /* Register IO */
+ .write = sof_io_write,
+ .read = sof_io_read,
+ .write64 = sof_io_write64,
+ .read64 = sof_io_read64,
+
+ /* Block IO */
+ .block_read = sof_block_read,
+ .block_write = sof_block_write,
+
+ /* doorbell */
+ .irq_handler = byt_irq_handler,
+ .irq_thread = byt_irq_thread,
+
+ /* ipc */
+ .send_msg = byt_send_msg,
+ .fw_ready = byt_fw_ready,
+
+ .ipc_msg_data = intel_ipc_msg_data,
+ .ipc_pcm_params = intel_ipc_pcm_params,
+
+ /* debug */
+ .debug_map = cht_debugfs,
+ .debug_map_count = ARRAY_SIZE(cht_debugfs),
+ .dbg_dump = byt_dump,
+
+ /* stream callbacks */
+ .pcm_open = intel_pcm_open,
+ .pcm_close = intel_pcm_close,
+
+ /* module loading */
+ .load_module = snd_sof_parse_module_memcpy,
+
+ /*Firmware loading */
+ .load_firmware = snd_sof_load_firmware_memcpy,
+
+ /* DAI drivers */
+ .drv = byt_dai,
+ /* all 6 SSPs may be available for cherrytrail */
+ .num_drv = ARRAY_SIZE(byt_dai),
+};
+EXPORT_SYMBOL(sof_cht_ops);
+
+const struct sof_intel_dsp_desc cht_chip_info = {
+ .cores_num = 1,
+ .cores_mask = 1,
+};
+EXPORT_SYMBOL(cht_chip_info);
+
+#endif /* CONFIG_SND_SOC_SOF_BAYTRAIL */
+
+MODULE_LICENSE("Dual BSD/GPL");
--- /dev/null
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
+/*
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * Copyright(c) 2017 Intel Corporation. All rights reserved.
+ *
+ * Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
+ */
+
+#ifndef __SOF_INTEL_SHIM_H
+#define __SOF_INTEL_SHIM_H
+
+/*
+ * SHIM registers for BYT, BSW, CHT, HSW, BDW
+ */
+
+#define SHIM_CSR (SHIM_OFFSET + 0x00)
+#define SHIM_PISR (SHIM_OFFSET + 0x08)
+#define SHIM_PIMR (SHIM_OFFSET + 0x10)
+#define SHIM_ISRX (SHIM_OFFSET + 0x18)
+#define SHIM_ISRD (SHIM_OFFSET + 0x20)
+#define SHIM_IMRX (SHIM_OFFSET + 0x28)
+#define SHIM_IMRD (SHIM_OFFSET + 0x30)
+#define SHIM_IPCX (SHIM_OFFSET + 0x38)
+#define SHIM_IPCD (SHIM_OFFSET + 0x40)
+#define SHIM_ISRSC (SHIM_OFFSET + 0x48)
+#define SHIM_ISRLPESC (SHIM_OFFSET + 0x50)
+#define SHIM_IMRSC (SHIM_OFFSET + 0x58)
+#define SHIM_IMRLPESC (SHIM_OFFSET + 0x60)
+#define SHIM_IPCSC (SHIM_OFFSET + 0x68)
+#define SHIM_IPCLPESC (SHIM_OFFSET + 0x70)
+#define SHIM_CLKCTL (SHIM_OFFSET + 0x78)
+#define SHIM_CSR2 (SHIM_OFFSET + 0x80)
+#define SHIM_LTRC (SHIM_OFFSET + 0xE0)
+#define SHIM_HMDC (SHIM_OFFSET + 0xE8)
+
+#define SHIM_PWMCTRL 0x1000
+
+/*
+ * SST SHIM register bits for BYT, BSW, CHT HSW, BDW
+ * Register bit naming and functionaility can differ between devices.
+ */
+
+/* CSR / CS */
+#define SHIM_CSR_RST BIT(1)
+#define SHIM_CSR_SBCS0 BIT(2)
+#define SHIM_CSR_SBCS1 BIT(3)
+#define SHIM_CSR_DCS(x) ((x) << 4)
+#define SHIM_CSR_DCS_MASK (0x7 << 4)
+#define SHIM_CSR_STALL BIT(10)
+#define SHIM_CSR_S0IOCS BIT(21)
+#define SHIM_CSR_S1IOCS BIT(23)
+#define SHIM_CSR_LPCS BIT(31)
+#define SHIM_CSR_24MHZ_LPCS \
+ (SHIM_CSR_SBCS0 | SHIM_CSR_SBCS1 | SHIM_CSR_LPCS)
+#define SHIM_CSR_24MHZ_NO_LPCS (SHIM_CSR_SBCS0 | SHIM_CSR_SBCS1)
+#define SHIM_BYT_CSR_RST BIT(0)
+#define SHIM_BYT_CSR_VECTOR_SEL BIT(1)
+#define SHIM_BYT_CSR_STALL BIT(2)
+#define SHIM_BYT_CSR_PWAITMODE BIT(3)
+
+/* ISRX / ISC */
+#define SHIM_ISRX_BUSY BIT(1)
+#define SHIM_ISRX_DONE BIT(0)
+#define SHIM_BYT_ISRX_REQUEST BIT(1)
+
+/* ISRD / ISD */
+#define SHIM_ISRD_BUSY BIT(1)
+#define SHIM_ISRD_DONE BIT(0)
+
+/* IMRX / IMC */
+#define SHIM_IMRX_BUSY BIT(1)
+#define SHIM_IMRX_DONE BIT(0)
+#define SHIM_BYT_IMRX_REQUEST BIT(1)
+
+/* IMRD / IMD */
+#define SHIM_IMRD_DONE BIT(0)
+#define SHIM_IMRD_BUSY BIT(1)
+#define SHIM_IMRD_SSP0 BIT(16)
+#define SHIM_IMRD_DMAC0 BIT(21)
+#define SHIM_IMRD_DMAC1 BIT(22)
+#define SHIM_IMRD_DMAC (SHIM_IMRD_DMAC0 | SHIM_IMRD_DMAC1)
+
+/* IPCX / IPCC */
+#define SHIM_IPCX_DONE BIT(30)
+#define SHIM_IPCX_BUSY BIT(31)
+#define SHIM_BYT_IPCX_DONE BIT_ULL(62)
+#define SHIM_BYT_IPCX_BUSY BIT_ULL(63)
+
+/* IPCD */
+#define SHIM_IPCD_DONE BIT(30)
+#define SHIM_IPCD_BUSY BIT(31)
+#define SHIM_BYT_IPCD_DONE BIT_ULL(62)
+#define SHIM_BYT_IPCD_BUSY BIT_ULL(63)
+
+/* CLKCTL */
+#define SHIM_CLKCTL_SMOS(x) ((x) << 24)
+#define SHIM_CLKCTL_MASK (3 << 24)
+#define SHIM_CLKCTL_DCPLCG BIT(18)
+#define SHIM_CLKCTL_SCOE1 BIT(17)
+#define SHIM_CLKCTL_SCOE0 BIT(16)
+
+/* CSR2 / CS2 */
+#define SHIM_CSR2_SDFD_SSP0 BIT(1)
+#define SHIM_CSR2_SDFD_SSP1 BIT(2)
+
+/* LTRC */
+#define SHIM_LTRC_VAL(x) ((x) << 0)
+
+/* HMDC */
+#define SHIM_HMDC_HDDA0(x) ((x) << 0)
+#define SHIM_HMDC_HDDA1(x) ((x) << 7)
+#define SHIM_HMDC_HDDA_E0_CH0 1
+#define SHIM_HMDC_HDDA_E0_CH1 2
+#define SHIM_HMDC_HDDA_E0_CH2 4
+#define SHIM_HMDC_HDDA_E0_CH3 8
+#define SHIM_HMDC_HDDA_E1_CH0 SHIM_HMDC_HDDA1(SHIM_HMDC_HDDA_E0_CH0)
+#define SHIM_HMDC_HDDA_E1_CH1 SHIM_HMDC_HDDA1(SHIM_HMDC_HDDA_E0_CH1)
+#define SHIM_HMDC_HDDA_E1_CH2 SHIM_HMDC_HDDA1(SHIM_HMDC_HDDA_E0_CH2)
+#define SHIM_HMDC_HDDA_E1_CH3 SHIM_HMDC_HDDA1(SHIM_HMDC_HDDA_E0_CH3)
+#define SHIM_HMDC_HDDA_E0_ALLCH \
+ (SHIM_HMDC_HDDA_E0_CH0 | SHIM_HMDC_HDDA_E0_CH1 | \
+ SHIM_HMDC_HDDA_E0_CH2 | SHIM_HMDC_HDDA_E0_CH3)
+#define SHIM_HMDC_HDDA_E1_ALLCH \
+ (SHIM_HMDC_HDDA_E1_CH0 | SHIM_HMDC_HDDA_E1_CH1 | \
+ SHIM_HMDC_HDDA_E1_CH2 | SHIM_HMDC_HDDA_E1_CH3)
+
+/* Audio DSP PCI registers */
+#define PCI_VDRTCTL0 0xa0
+#define PCI_VDRTCTL1 0xa4
+#define PCI_VDRTCTL2 0xa8
+#define PCI_VDRTCTL3 0xaC
+
+/* VDRTCTL0 */
+#define PCI_VDRTCL0_D3PGD BIT(0)
+#define PCI_VDRTCL0_D3SRAMPGD BIT(1)
+#define PCI_VDRTCL0_DSRAMPGE_SHIFT 12
+#define PCI_VDRTCL0_DSRAMPGE_MASK GENMASK(PCI_VDRTCL0_DSRAMPGE_SHIFT + 19,\
+ PCI_VDRTCL0_DSRAMPGE_SHIFT)
+#define PCI_VDRTCL0_ISRAMPGE_SHIFT 2
+#define PCI_VDRTCL0_ISRAMPGE_MASK GENMASK(PCI_VDRTCL0_ISRAMPGE_SHIFT + 9,\
+ PCI_VDRTCL0_ISRAMPGE_SHIFT)
+
+/* VDRTCTL2 */
+#define PCI_VDRTCL2_DCLCGE BIT(1)
+#define PCI_VDRTCL2_DTCGE BIT(10)
+#define PCI_VDRTCL2_APLLSE_MASK BIT(31)
+
+/* PMCS */
+#define PCI_PMCS 0x84
+#define PCI_PMCS_PS_MASK 0x3
+
+/* DSP hardware descriptor */
+struct sof_intel_dsp_desc {
+ int cores_num;
+ int cores_mask;
+ int init_core_mask; /* cores available after fw boot */
+ int ipc_req;
+ int ipc_req_mask;
+ int ipc_ack;
+ int ipc_ack_mask;
+ int ipc_ctl;
+ int rom_init_timeout;
+};
+
+extern const struct snd_sof_dsp_ops sof_tng_ops;
+extern const struct snd_sof_dsp_ops sof_byt_ops;
+extern const struct snd_sof_dsp_ops sof_cht_ops;
+extern const struct snd_sof_dsp_ops sof_hsw_ops;
+extern const struct snd_sof_dsp_ops sof_bdw_ops;
+
+extern const struct sof_intel_dsp_desc byt_chip_info;
+extern const struct sof_intel_dsp_desc cht_chip_info;
+extern const struct sof_intel_dsp_desc bdw_chip_info;
+extern const struct sof_intel_dsp_desc hsw_chip_info;
+extern const struct sof_intel_dsp_desc tng_chip_info;
+
+struct sof_intel_stream {
+ size_t posn_offset;
+};
+
+#endif
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