arch: xtensa: Add support for Intel Apollolake

Add the necessary architecture changes for Intel Apollolake.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Johan Hedberg 2019-11-19 12:32:32 +02:00 committed by Anas Nashif
commit 8183a7fd29
4 changed files with 69 additions and 0 deletions

View file

@ -10,6 +10,7 @@ zephyr_library_sources(
window_vectors.S
xtensa-asm2-util.S
xtensa-asm2.c
irq_manage.c
)
zephyr_library_sources_ifndef(CONFIG_ATOMIC_OPERATIONS_C atomic.S)

View file

@ -0,0 +1,61 @@
/*
* Copyright (c) 2016 Cadence Design Systems, Inc.
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/types.h>
#include <stdio.h>
#include <arch/xtensa/xtensa_api.h>
#include <kernel_arch_data.h>
#include <sys/__assert.h>
/*
* @internal
*
* @brief Set an interrupt's priority
*
* The priority is verified if ASSERT_ON is enabled.
*
* The priority is verified if ASSERT_ON is enabled. The maximum number of
* priority levels is a little complex, as there are some hardware priority
* levels which are reserved: three for various types of exceptions, and
* possibly one additional to support zero latency interrupts.
*
* Valid values are from 1 to 6. Interrupts of priority 1 are not masked when
* interrupts are locked system-wide, so care must be taken when using them.
* ISR installed with priority 0 interrupts cannot make kernel calls.
*
* @return N/A
*/
void z_irq_priority_set(unsigned int irq, unsigned int prio, u32_t flags)
{
__ASSERT(prio < XCHAL_EXCM_LEVEL + 1,
"invalid priority %d! values must be less than %d\n",
prio, XCHAL_EXCM_LEVEL + 1);
/* TODO: Write code to set priority if this is ever possible on
* Xtensa
*/
}
#ifdef CONFIG_DYNAMIC_INTERRUPTS
#ifndef CONFIG_MULTI_LEVEL_INTERRUPTS
int z_arch_irq_connect_dynamic(unsigned int irq, unsigned int priority,
void (*routine)(void *parameter),
void *parameter, u32_t flags)
{
ARG_UNUSED(flags);
ARG_UNUSED(priority);
z_isr_install(irq, routine, parameter);
return irq;
}
#else /* !CONFIG_MULTI_LEVEL_INTERRUPTS */
int z_arch_irq_connect_dynamic(unsigned int irq, unsigned int priority,
void (*routine)(void *parameter),
void *parameter, u32_t flags)
{
return z_soc_irq_connect_dynamic(irq, priority, routine, parameter,
flags);
}
#endif /* !CONFIG_MULTI_LEVEL_INTERRUPTS */
#endif /* CONFIG_DYNAMIC_INTERRUPTS */

View file

@ -18,6 +18,7 @@
#include <devicetree.h>
#if !defined(_ASMLANGUAGE) && !defined(__ASSEMBLER__)
#include <zephyr/types.h>
#include <toolchain.h>
#include <arch/common/sys_io.h>
#include <arch/common/ffs.h>
#include <sw_isr_table.h>

View file

@ -36,6 +36,12 @@
#define arch_irq_is_enabled(irq) z_soc_irq_is_enabled(irq)
#ifdef CONFIG_DYNAMIC_INTERRUPTS
extern int z_soc_irq_connect_dynamic(unsigned int irq, unsigned int priority,
void (*routine)(void *parameter),
void *parameter, u32_t flags);
#endif
#else
#define CONFIG_NUM_IRQS XCHAL_NUM_INTERRUPTS