michaelh/zephyr
1
0
Fork 0
Code Releases Activity

arch: arc: add initial support of ARC TEE

Browse source 
* 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
Download patch file Download diff file Expand all files Collapse all files

16
drivers/timer/arcv2_timer0.c
View file

@ -13,8 +13,24 @@
/*
* note: This implementation assumes Timer0 is present. Be sure
* to build the ARC CPU with Timer0.
*
* If secureshield is present and secure firmware is configured,
* use secure Timer 0
*/
#ifdef CONFIG_ARC_SECURE_FIRMWARE
#undef _ARC_V2_TMR0_COUNT
#undef _ARC_V2_TMR0_CONTROL
#undef _ARC_V2_TMR0_LIMIT
#undef IRQ_TIMER0
#define _ARC_V2_TMR0_COUNT _ARC_V2_S_TMR0_COUNT
#define _ARC_V2_TMR0_CONTROL _ARC_V2_S_TMR0_CONTROL
#define _ARC_V2_TMR0_LIMIT _ARC_V2_S_TMR0_LIMIT
#define IRQ_TIMER0 IRQ_SEC_TIMER0
#endif
#define _ARC_V2_TMR_CTRL_IE 0x1 /* interrupt enable */
#define _ARC_V2_TMR_CTRL_NH 0x2 /* count only while not halted */