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Diffstat (limited to 'sound/soc/intel/baytrail/sst-baytrail-dsp.c')
-rw-r--r--sound/soc/intel/baytrail/sst-baytrail-dsp.c358
1 files changed, 0 insertions, 358 deletions
diff --git a/sound/soc/intel/baytrail/sst-baytrail-dsp.c b/sound/soc/intel/baytrail/sst-baytrail-dsp.c
deleted file mode 100644
index 4116ba66a4c2..000000000000
--- a/sound/soc/intel/baytrail/sst-baytrail-dsp.c
+++ /dev/null
@@ -1,358 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Intel Baytrail SST DSP driver
- * Copyright (c) 2014, Intel Corporation.
- */
-
-#include <linux/delay.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include <linux/device.h>
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/dma-mapping.h>
-#include <linux/platform_device.h>
-#include <linux/firmware.h>
-
-#include "../common/sst-dsp.h"
-#include "../common/sst-dsp-priv.h"
-#include "sst-baytrail-ipc.h"
-
-#define SST_BYT_FW_SIGNATURE_SIZE 4
-#define SST_BYT_FW_SIGN "$SST"
-
-#define SST_BYT_IRAM_OFFSET 0xC0000
-#define SST_BYT_DRAM_OFFSET 0x100000
-#define SST_BYT_SHIM_OFFSET 0x140000
-
-enum sst_ram_type {
- SST_BYT_IRAM = 1,
- SST_BYT_DRAM = 2,
- SST_BYT_CACHE = 3,
-};
-
-struct dma_block_info {
- enum sst_ram_type type; /* IRAM/DRAM */
- u32 size; /* Bytes */
- u32 ram_offset; /* Offset in I/DRAM */
- u32 rsvd; /* Reserved field */
-};
-
-struct fw_header {
- unsigned char signature[SST_BYT_FW_SIGNATURE_SIZE];
- u32 file_size; /* size of fw minus this header */
- u32 modules; /* # of modules */
- u32 file_format; /* version of header format */
- u32 reserved[4];
-};
-
-struct sst_byt_fw_module_header {
- unsigned char signature[SST_BYT_FW_SIGNATURE_SIZE];
- u32 mod_size; /* size of module */
- u32 blocks; /* # of blocks */
- u32 type; /* codec type, pp lib */
- u32 entry_point;
-};
-
-static int sst_byt_parse_module(struct sst_dsp *dsp, struct sst_fw *fw,
- struct sst_byt_fw_module_header *module)
-{
- struct dma_block_info *block;
- struct sst_module *mod;
- struct sst_module_template template;
- int count;
-
- memset(&template, 0, sizeof(template));
- template.id = module->type;
- template.entry = module->entry_point;
-
- mod = sst_module_new(fw, &template, NULL);
- if (mod == NULL)
- return -ENOMEM;
-
- block = (void *)module + sizeof(*module);
-
- for (count = 0; count < module->blocks; count++) {
-
- if (block->size <= 0) {
- dev_err(dsp->dev, "block %d size invalid\n", count);
- return -EINVAL;
- }
-
- switch (block->type) {
- case SST_BYT_IRAM:
- mod->offset = block->ram_offset +
- dsp->addr.iram_offset;
- mod->type = SST_MEM_IRAM;
- break;
- case SST_BYT_DRAM:
- mod->offset = block->ram_offset +
- dsp->addr.dram_offset;
- mod->type = SST_MEM_DRAM;
- break;
- case SST_BYT_CACHE:
- mod->offset = block->ram_offset +
- (dsp->addr.fw_ext - dsp->addr.lpe);
- mod->type = SST_MEM_CACHE;
- break;
- default:
- dev_err(dsp->dev, "wrong ram type 0x%x in block0x%x\n",
- block->type, count);
- return -EINVAL;
- }
-
- mod->size = block->size;
- mod->data = (void *)block + sizeof(*block);
-
- sst_module_alloc_blocks(mod);
-
- block = (void *)block + sizeof(*block) + block->size;
- }
- return 0;
-}
-
-static int sst_byt_parse_fw_image(struct sst_fw *sst_fw)
-{
- struct fw_header *header;
- struct sst_byt_fw_module_header *module;
- struct sst_dsp *dsp = sst_fw->dsp;
- int ret, count;
-
- /* Read the header information from the data pointer */
- header = (struct fw_header *)sst_fw->dma_buf;
-
- /* verify FW */
- if ((strncmp(header->signature, SST_BYT_FW_SIGN, 4) != 0) ||
- (sst_fw->size != header->file_size + sizeof(*header))) {
- /* Invalid FW signature */
- dev_err(dsp->dev, "Invalid FW sign/filesize mismatch\n");
- return -EINVAL;
- }
-
- dev_dbg(dsp->dev,
- "header sign=%4s size=0x%x modules=0x%x fmt=0x%x size=%zu\n",
- header->signature, header->file_size, header->modules,
- header->file_format, sizeof(*header));
-
- module = (void *)sst_fw->dma_buf + sizeof(*header);
- for (count = 0; count < header->modules; count++) {
- /* module */
- ret = sst_byt_parse_module(dsp, sst_fw, module);
- if (ret < 0) {
- dev_err(dsp->dev, "invalid module %d\n", count);
- return ret;
- }
- module = (void *)module + sizeof(*module) + module->mod_size;
- }
-
- return 0;
-}
-
-static void sst_byt_dump_shim(struct sst_dsp *sst)
-{
- int i;
- u64 reg;
-
- for (i = 0; i <= 0xF0; i += 8) {
- reg = sst_dsp_shim_read64_unlocked(sst, i);
- if (reg)
- dev_dbg(sst->dev, "shim 0x%2.2x value 0x%16.16llx\n",
- i, reg);
- }
-
- for (i = 0x00; i <= 0xff; i += 4) {
- reg = readl(sst->addr.pci_cfg + i);
- if (reg)
- dev_dbg(sst->dev, "pci 0x%2.2x value 0x%8.8x\n",
- i, (u32)reg);
- }
-}
-
-static irqreturn_t sst_byt_irq(int irq, void *context)
-{
- struct sst_dsp *sst = (struct sst_dsp *) context;
- u64 isrx;
- irqreturn_t ret = IRQ_NONE;
-
- spin_lock(&sst->spinlock);
-
- isrx = sst_dsp_shim_read64_unlocked(sst, SST_ISRX);
- if (isrx & SST_ISRX_DONE) {
- /* ADSP has processed the message request from IA */
- sst_dsp_shim_update_bits64_unlocked(sst, SST_IPCX,
- SST_BYT_IPCX_DONE, 0);
- ret = IRQ_WAKE_THREAD;
- }
- if (isrx & SST_BYT_ISRX_REQUEST) {
- /* mask message request from ADSP and do processing later */
- sst_dsp_shim_update_bits64_unlocked(sst, SST_IMRX,
- SST_BYT_IMRX_REQUEST,
- SST_BYT_IMRX_REQUEST);
- ret = IRQ_WAKE_THREAD;
- }
-
- spin_unlock(&sst->spinlock);
-
- return ret;
-}
-
-static void sst_byt_boot(struct sst_dsp *sst)
-{
- int tries = 10;
-
- /*
- * save the physical address of extended firmware block in the first
- * 4 bytes of the mailbox
- */
- memcpy_toio(sst->addr.lpe + SST_BYT_MAILBOX_OFFSET,
- &sst->pdata->fw_base, sizeof(u32));
-
- /* release stall and wait to unstall */
- sst_dsp_shim_update_bits64(sst, SST_CSR, SST_BYT_CSR_STALL, 0x0);
- while (tries--) {
- if (!(sst_dsp_shim_read64(sst, SST_CSR) &
- SST_BYT_CSR_PWAITMODE))
- break;
- msleep(100);
- }
- if (tries < 0) {
- dev_err(sst->dev, "unable to start DSP\n");
- sst_byt_dump_shim(sst);
- }
-}
-
-static void sst_byt_reset(struct sst_dsp *sst)
-{
- /* put DSP into reset, set reset vector and stall */
- sst_dsp_shim_update_bits64(sst, SST_CSR,
- SST_BYT_CSR_RST | SST_BYT_CSR_VECTOR_SEL | SST_BYT_CSR_STALL,
- SST_BYT_CSR_RST | SST_BYT_CSR_VECTOR_SEL | SST_BYT_CSR_STALL);
-
- udelay(10);
-
- /* take DSP out of reset and keep stalled for FW loading */
- sst_dsp_shim_update_bits64(sst, SST_CSR, SST_BYT_CSR_RST, 0);
-}
-
-struct sst_adsp_memregion {
- u32 start;
- u32 end;
- int blocks;
- enum sst_mem_type type;
-};
-
-/* BYT test stuff */
-static const struct sst_adsp_memregion byt_region[] = {
- {0xC0000, 0x100000, 8, SST_MEM_IRAM}, /* I-SRAM - 8 * 32kB */
- {0x100000, 0x140000, 8, SST_MEM_DRAM}, /* D-SRAM0 - 8 * 32kB */
-};
-
-static int sst_byt_resource_map(struct sst_dsp *sst, struct sst_pdata *pdata)
-{
- sst->addr.lpe_base = pdata->lpe_base;
- sst->addr.lpe = ioremap(pdata->lpe_base, pdata->lpe_size);
- if (!sst->addr.lpe)
- return -ENODEV;
-
- /* ADSP PCI MMIO config space */
- sst->addr.pci_cfg = ioremap(pdata->pcicfg_base, pdata->pcicfg_size);
- if (!sst->addr.pci_cfg) {
- iounmap(sst->addr.lpe);
- return -ENODEV;
- }
-
- /* SST Extended FW allocation */
- sst->addr.fw_ext = ioremap(pdata->fw_base, pdata->fw_size);
- if (!sst->addr.fw_ext) {
- iounmap(sst->addr.pci_cfg);
- iounmap(sst->addr.lpe);
- return -ENODEV;
- }
-
- /* SST Shim */
- sst->addr.shim = sst->addr.lpe + sst->addr.shim_offset;
-
- sst_dsp_mailbox_init(sst, SST_BYT_MAILBOX_OFFSET + 0x204,
- SST_BYT_IPC_MAX_PAYLOAD_SIZE,
- SST_BYT_MAILBOX_OFFSET,
- SST_BYT_IPC_MAX_PAYLOAD_SIZE);
-
- sst->irq = pdata->irq;
-
- return 0;
-}
-
-static int sst_byt_init(struct sst_dsp *sst, struct sst_pdata *pdata)
-{
- const struct sst_adsp_memregion *region;
- struct device *dev;
- int ret = -ENODEV, i, j, region_count;
- u32 offset, size;
-
- dev = sst->dev;
-
- switch (sst->id) {
- case SST_DEV_ID_BYT:
- region = byt_region;
- region_count = ARRAY_SIZE(byt_region);
- sst->addr.iram_offset = SST_BYT_IRAM_OFFSET;
- sst->addr.dram_offset = SST_BYT_DRAM_OFFSET;
- sst->addr.shim_offset = SST_BYT_SHIM_OFFSET;
- break;
- default:
- dev_err(dev, "failed to get mem resources\n");
- return ret;
- }
-
- ret = sst_byt_resource_map(sst, pdata);
- if (ret < 0) {
- dev_err(dev, "failed to map resources\n");
- return ret;
- }
-
- ret = dma_coerce_mask_and_coherent(sst->dma_dev, DMA_BIT_MASK(32));
- if (ret)
- return ret;
-
- /* enable Interrupt from both sides */
- sst_dsp_shim_update_bits64(sst, SST_IMRX, 0x3, 0x0);
- sst_dsp_shim_update_bits64(sst, SST_IMRD, 0x3, 0x0);
-
- /* register DSP memory blocks - ideally we should get this from ACPI */
- for (i = 0; i < region_count; i++) {
- offset = region[i].start;
- size = (region[i].end - region[i].start) / region[i].blocks;
-
- /* register individual memory blocks */
- for (j = 0; j < region[i].blocks; j++) {
- sst_mem_block_register(sst, offset, size,
- region[i].type, NULL, j, sst);
- offset += size;
- }
- }
-
- return 0;
-}
-
-static void sst_byt_free(struct sst_dsp *sst)
-{
- sst_mem_block_unregister_all(sst);
- iounmap(sst->addr.lpe);
- iounmap(sst->addr.pci_cfg);
- iounmap(sst->addr.fw_ext);
-}
-
-struct sst_ops sst_byt_ops = {
- .reset = sst_byt_reset,
- .boot = sst_byt_boot,
- .write = sst_shim32_write,
- .read = sst_shim32_read,
- .write64 = sst_shim32_write64,
- .read64 = sst_shim32_read64,
- .ram_read = sst_memcpy_fromio_32,
- .ram_write = sst_memcpy_toio_32,
- .irq_handler = sst_byt_irq,
- .init = sst_byt_init,
- .free = sst_byt_free,
- .parse_fw = sst_byt_parse_fw_image,
-};