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| author | Patrice Chotard <patrice.chotard@st.com> | 2020-06-18 19:24:56 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2020-06-28 14:46:54 +0200 |
| commit | 0f77ce26ebcf6ea384421d2dd47b924b83649692 (patch) | |
| tree | 99dd5a9129118c58cc01d28a643ede9421783950 /arch/arm/mach-sti | |
| parent | 4c9f47ce57b807003e83d7cbeee77e3c10a26ac6 (diff) | |
| download | lwn-0f77ce26ebcf6ea384421d2dd47b924b83649692.tar.gz lwn-0f77ce26ebcf6ea384421d2dd47b924b83649692.zip | |
Revert "ARM: sti: Implement dummy L2 cache's write_sec"
This reverts commit 7b8e0188fa717cd9abc4fb52587445b421835c2a.
Initially, STiH410-B2260 was supposed to be secured, that's why
l2c_write_sec was stubbed to avoid secure register access from
non secure world.
But by default, STiH410-B2260 is running in non secure mode,
so L2 cache register accesses are authorized, l2c_write_sec stub
is not needed.
With this patch, L2 cache is configured and performance are enhanced.
Link: https://lore.kernel.org/r/20200618172456.29475-1-patrice.chotard@st.com
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Cc: Alain Volmat <alain.volmat@st.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-sti')
| -rw-r--r-- | arch/arm/mach-sti/board-dt.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/arch/arm/mach-sti/board-dt.c b/arch/arm/mach-sti/board-dt.c index dcb98937fcf5..ffecbf29646f 100644 --- a/arch/arm/mach-sti/board-dt.c +++ b/arch/arm/mach-sti/board-dt.c @@ -20,14 +20,6 @@ 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 | @@ -36,5 +28,4 @@ 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 |