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platform.c
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// SPDX-License-Identifier: BSD-3-Clause
//
// Copyright 2021 NXP
//
// Author: Zhang Peng <peng.zhang_8@nxp.com>
#include <sof/compiler_info.h>
#include <sof/debug/debug.h>
#include <sof/drivers/edma.h>
#include <rtos/interrupt.h>
#include <sof/ipc/driver.h>
#include <sof/drivers/mu.h>
#include <rtos/timer.h>
#include <sof/fw-ready-metadata.h>
#include <sof/lib/agent.h>
#include <rtos/clk.h>
#include <sof/lib/cpu.h>
#include <sof/lib/dai.h>
#include <sof/lib/dma.h>
#include <sof/lib/mailbox.h>
#include <sof/lib/memory.h>
#include <sof/lib/mm_heap.h>
#include <sof/platform.h>
#include <sof/schedule/edf_schedule.h>
#include <sof/schedule/ll_schedule.h>
#include <sof/schedule/ll_schedule_domain.h>
#include <rtos/sof.h>
#include <sof/trace/dma-trace.h>
#include <ipc/dai.h>
#include <ipc/header.h>
#include <ipc/info.h>
#include <kernel/abi.h>
#include <kernel/ext_manifest.h>
#include <sof_versions.h>
#include <errno.h>
#include <stdint.h>
struct sof;
static const struct sof_ipc_fw_ready ready
__section(".fw_ready") = {
.hdr = {
.cmd = SOF_IPC_FW_READY,
.size = sizeof(struct sof_ipc_fw_ready),
},
/* dspbox is for DSP initiated IPC, hostbox is for host initiated IPC */
.version = {
.hdr.size = sizeof(struct sof_ipc_fw_version),
.micro = SOF_MICRO,
.minor = SOF_MINOR,
.major = SOF_MAJOR,
#ifdef DEBUG_BUILD
/* only added in debug for reproducability in releases */
.build = SOF_BUILD,
.date = __DATE__,
.time = __TIME__,
#endif
.tag = SOF_TAG,
.abi_version = SOF_ABI_VERSION,
.src_hash = SOF_SRC_HASH,
},
.flags = DEBUG_SET_FW_READY_FLAGS,
};
#define NUM_IMX_WINDOWS 6
const struct ext_man_windows xsram_window
__aligned(EXT_MAN_ALIGN) __section(".fw_metadata") __unused = {
.hdr = {
.type = EXT_MAN_ELEM_WINDOW,
.elem_size = ALIGN_UP_COMPILE(sizeof(struct ext_man_windows), EXT_MAN_ALIGN),
},
.window = {
.ext_hdr = {
.hdr.cmd = SOF_IPC_FW_READY,
.hdr.size = sizeof(struct sof_ipc_window),
.type = SOF_IPC_EXT_WINDOW,
},
.num_windows = NUM_IMX_WINDOWS,
.window = {
{
.type = SOF_IPC_REGION_UPBOX,
.id = 0, /* map to host window 0 */
.flags = 0, // TODO: set later
.size = MAILBOX_DSPBOX_SIZE,
.offset = MAILBOX_DSPBOX_OFFSET,
},
{
.type = SOF_IPC_REGION_DOWNBOX,
.id = 0, /* map to host window 0 */
.flags = 0, // TODO: set later
.size = MAILBOX_HOSTBOX_SIZE,
.offset = MAILBOX_HOSTBOX_OFFSET,
},
{
.type = SOF_IPC_REGION_DEBUG,
.id = 0, /* map to host window 0 */
.flags = 0, // TODO: set later
.size = MAILBOX_DEBUG_SIZE,
.offset = MAILBOX_DEBUG_OFFSET,
},
{
.type = SOF_IPC_REGION_TRACE,
.id = 0, /* map to host window 0 */
.flags = 0, // TODO: set later
.size = MAILBOX_TRACE_SIZE,
.offset = MAILBOX_TRACE_OFFSET,
},
{
.type = SOF_IPC_REGION_STREAM,
.id = 0, /* map to host window 0 */
.flags = 0, // TODO: set later
.size = MAILBOX_STREAM_SIZE,
.offset = MAILBOX_STREAM_OFFSET,
},
{
.type = SOF_IPC_REGION_EXCEPTION,
.id = 0, /* map to host window 0 */
.flags = 0, // TODO: set later
.size = MAILBOX_EXCEPTION_SIZE,
.offset = MAILBOX_EXCEPTION_OFFSET,
},
},
}
};
#ifndef __ZEPHYR__
static SHARED_DATA struct timer timer_shared = {
.id = TIMER0, /* internal timer */
.irq = IRQ_NUM_TIMER0,
};
#endif
int platform_boot_complete(uint32_t boot_message)
{
mailbox_dspbox_write(0, &ready, sizeof(ready));
/* now interrupt host to tell it we are done booting */
imx_mu_xcr_rmw(IMX_MU_VERSION, IMX_MU_GCR, IMX_MU_xCR_GIRn(IMX_MU_VERSION, 1), 0);
/* boot now complete so we can relax the CPU */
/* For now skip this to gain more processing performance
* for SRC component.
*/
/* clock_set_freq(CLK_CPU, CLK_DEFAULT_CPU_HZ); */
return 0;
}
int platform_init(struct sof *sof)
{
int ret;
#ifndef __ZEPHYR__
sof->platform_timer = platform_shared_get(&timer_shared, sizeof(timer_shared));
sof->cpu_timers = sof->platform_timer;
#endif
#ifdef __ZEPHYR__
/* initialize cascade interrupts before any usage */
interrupt_init(sof);
#endif
platform_interrupt_init();
platform_clock_init(sof);
scheduler_init_edf();
/* init low latency domains and schedulers */
sof->platform_timer_domain =
timer_domain_init(sof->platform_timer, PLATFORM_DEFAULT_CLOCK);
scheduler_init_ll(sof->platform_timer_domain);
#ifndef __ZEPHYR__
platform_timer_start(sof->platform_timer);
#endif
sa_init(sof, CONFIG_SYSTICK_PERIOD);
clock_set_freq(CLK_CPU(cpu_get_id()), CLK_MAX_CPU_HZ);
/* init DMA */
ret = dmac_init(sof);
if (ret < 0)
return -ENODEV;
/* Init EDMA platform domain */
sof->platform_dma_domain = dma_multi_chan_domain_init
(&sof->dma_info->dma_array[0], 1,
PLATFORM_DEFAULT_CLOCK, false);
/* i.MX platform DMA domain will be full synchronous, no time dependent */
sof->platform_dma_domain->full_sync = true;
scheduler_init_ll(sof->platform_dma_domain);
/* initialize the host IPC mechanims */
ipc_init(sof);
ret = dai_init(sof);
if (ret < 0)
return -ENODEV;
#if CONFIG_TRACE
/* Initialize DMA for Trace*/
trace_point(TRACE_BOOT_PLATFORM_DMA_TRACE);
dma_trace_init_complete(sof->dmat);
#endif
/* show heap status */
heap_trace_all(1);
return 0;
}
int platform_context_save(struct sof *sof)
{
return 0;
}
#ifndef __ZEPHYR__
void platform_wait_for_interrupt(int level)
{
arch_wait_for_interrupt(level);
}
#endif