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aarch32: Implement cpu_rev_var_hs()

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Helper function to assist with errata workaround application.

Change-Id: Idba42ca238442cc826f43444dbfa754e433a5e5e
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
This commit is contained in:
Dimitris Papastamos 2017-06-05 13:36:34 +01:00
parent 10d664ce96
commit 56e0499971
1 changed files with 13 additions and 0 deletions
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13
lib/cpus/aarch32/cpu_helpers.S
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@ -182,6 +182,19 @@ func cpu_rev_var_ls
bx lr
endfunc cpu_rev_var_ls
/*
* Compare the CPU's revision-variant (r0) with a given value (r1), for errata
* application purposes. If the revision-variant is higher than or same as a
* given value, indicates that errata applies; otherwise not.
*/
.globl cpu_rev_var_hs
func cpu_rev_var_hs
cmp r0, r1
movge r0, #ERRATA_APPLIES
movlt r0, #ERRATA_NOT_APPLIES
bx lr
endfunc cpu_rev_var_hs
#if REPORT_ERRATA
/*
* void print_errata_status(void);