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| author | Patrice Chotard <patrice.chotard@st.com> | 2016-06-28 11:21:52 +0200 |
|---|---|---|
| committer | Patrice Chotard <patrice.chotard@st.com> | 2016-07-11 09:15:44 +0200 |
| commit | 7b8e0188fa717cd9abc4fb52587445b421835c2a (patch) | |
| tree | 1a8750b93a459bcb56a257f4b906c902c89c916d /arch/arm/mach-sti | |
| parent | ARM: STi: Update machine _namestr to be more generic. (diff) | |
| download | linux-7b8e0188fa717cd9abc4fb52587445b421835c2a.tar.xz linux-7b8e0188fa717cd9abc4fb52587445b421835c2a.zip | |
ARM: sti: Implement dummy L2 cache's write_sec
This patch implements the write_sec callback that handle PL310
secure registers writes.
This callback is just a stub for now, to avoid system crash.
Later, it could handle SMC calls so that TZ handles the needed writes.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Diffstat (limited to 'arch/arm/mach-sti')
| -rw-r--r-- | arch/arm/mach-sti/board-dt.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mach-sti/board-dt.c b/arch/arm/mach-sti/board-dt.c index cfee0efc75f9..e04cd1b201bb 100644 --- a/arch/arm/mach-sti/board-dt.c +++ b/arch/arm/mach-sti/board-dt.c @@ -23,6 +23,14 @@ static const char *const stih41x_dt_match[] __initconst = { NULL }; +static void sti_l2_write_sec(unsigned long val, unsigned reg) +{ + /* + * We can't write to secure registers as we are in non-secure + * mode, until we have some SMI service available. + */ +} + DT_MACHINE_START(STM, "STi SoC with Flattened Device Tree") .dt_compat = stih41x_dt_match, .l2c_aux_val = L2C_AUX_CTRL_SHARED_OVERRIDE | @@ -31,4 +39,5 @@ DT_MACHINE_START(STM, "STi SoC with Flattened Device Tree") L2C_AUX_CTRL_WAY_SIZE(4), .l2c_aux_mask = 0xc0000fff, .smp = smp_ops(sti_smp_ops), + .l2c_write_sec = sti_l2_write_sec, MACHINE_END |