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arch: arc: add initial support of ARC TEE

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* it's based on ARC SecureShield
* add basic secure service in arch/arc/core/secureshield
* necesssary changes in arch level
   * thread switch
   * irq/exception handling
   * initialization
* add secure time support

Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
This commit is contained in:
Wayne Ren 2019-08-01 12:39:35 +08:00 • committed by Ioannis Glaropoulos
commit cca39204c2
25 changed files with 880 additions and 122 deletions
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11
drivers/interrupt_controller/arcv2_irq_unit.c
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@ -27,7 +27,7 @@ extern void *_VectorTable;
#include <kernel_structs.h>
#include <v2/irq.h>
#ifdef CONFIG_ARC_HAS_SECURE
#ifdef CONFIG_ARC_SECURE_FIRMWARE
#undef _ARC_V2_IRQ_VECT_BASE
#define _ARC_V2_IRQ_VECT_BASE _ARC_V2_IRQ_VECT_BASE_S
#endif
@ -71,8 +71,9 @@ static int arc_v2_irq_unit_init(struct device *unused)
* values in this loop.
*/
for (irq = 16; irq < CONFIG_NUM_IRQS; irq++) {
z_arc_v2_aux_reg_write(_ARC_V2_IRQ_SELECT, irq);
#ifdef CONFIG_ARC_HAS_SECURE
#ifdef CONFIG_ARC_SECURE_FIRMWARE
z_arc_v2_aux_reg_write(_ARC_V2_IRQ_PRIORITY,
(CONFIG_NUM_IRQ_PRIO_LEVELS-1) |
_ARC_V2_IRQ_PRIORITY_SECURE); /* lowest priority */
@ -148,7 +149,7 @@ static int arc_v2_irq_unit_resume(struct device *dev)
*/
for (irq = 16U; irq < CONFIG_NUM_IRQS; irq++) {
z_arc_v2_aux_reg_write(_ARC_V2_IRQ_SELECT, irq);
#ifdef CONFIG_ARC_HAS_SECURE
#ifdef CONFIG_ARC_SECURE_FIRMWARE
z_arc_v2_aux_reg_write(_ARC_V2_IRQ_PRIORITY,
ctx.irq_config[irq - 16] >> 2 |
_ARC_V2_IRQ_PRIORITY_SECURE);
@ -162,7 +163,11 @@ static int arc_v2_irq_unit_resume(struct device *dev)
ctx.irq_config[irq - 16] & BIT(0));
}
#ifdef CONFIG_ARC_NORMAL_FIRMWARE
/* \todo use sjli instruction to access irq_ctrl */
#else
z_arc_v2_aux_reg_write(_ARC_V2_AUX_IRQ_CTRL, ctx.irq_ctrl);
#endif
z_arc_v2_aux_reg_write(_ARC_V2_IRQ_VECT_BASE, ctx.irq_vect_base);
status32 = z_arc_v2_aux_reg_read(_ARC_V2_STATUS32);