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armv8: fsl-layerscape : Check SVR for initializing TZASC

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LS2080 SoC and its personalities does not support TZASC
But other new SoCs like LS2088A, LS1088A supports TZASC

Hence, skip initializing TZASC for Ls2080A based on SVR

Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
This commit is contained in:
Priyanka Jain 2016-11-17 12:29:54 +05:30 committed by York Sun
parent 7cfbb4abe3
commit d5df606d17
1 changed files with 12 additions and 1 deletions
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13
arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S
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@ -15,6 +15,7 @@
#endif
#ifdef CONFIG_FSL_LSCH3
#include <asm/arch-fsl-layerscape/immap_lsch3.h>
#include <asm/arch-fsl-layerscape/soc.h>
#endif
ENTRY(lowlevel_init)
@ -140,6 +141,16 @@ ENTRY(lowlevel_init)
#endif
#ifdef CONFIG_FSL_TZASC_400
/*
* LS2080 and its personalities does not support TZASC
* So skip TZASC related operations
*/
bl get_svr
lsr w0, w0, #16
ldr w1, =SVR_DEV_LS2080A
cmp w0, w1
b.eq 1f
/* Set TZASC so that:
* a. We use only Region0 whose global secure write/read is EN
* b. We use only Region0 whose NSAID write/read is EN
@ -182,7 +193,7 @@ ENTRY(lowlevel_init)
isb
dsb sy
#endif
1:
#ifdef CONFIG_ARCH_LS1046A
/* Initialize the L2 RAM latency */
mrs x1, S3_1_c11_c0_2