diff options
| author | Tinghan Shen <tinghan.shen@mediatek.com> | 2021-03-18 14:13:56 +0800 |
|---|---|---|
| committer | Hung-Te Lin <hungte@chromium.org> | 2021-03-22 01:51:37 +0000 |
| commit | 1a5d279120a93986f4272072b6c55c81b82bafe7 (patch) | |
| tree | fa3cedddf02a768c4b20db1c77142837971ead2b /src | |
| parent | 4de7610b32afc888e8c70c4a35525eab6e977cbe (diff) | |
soc/mediatek/mt8192: devapc: Add SCP domain setting
Configure SCP domain from 0 to 3 and lock it to prevent
changing it unexpectedly.
BUG=b:163300760
TEST=emerge-asurada coreboot
BRANCH=asurada
Change-Id: Idccb001f0cf58492f7f1655203106470637b9b82
Signed-off-by: Tinghan Shen <tinghan.shen@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51622
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/mediatek/mt8192/devapc.c | 9 | ||||
| -rw-r--r-- | src/soc/mediatek/mt8192/include/soc/addressmap.h | 1 | ||||
| -rw-r--r-- | src/soc/mediatek/mt8192/include/soc/devapc.h | 5 |
3 files changed, 15 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8192/devapc.c b/src/soc/mediatek/mt8192/devapc.c index 542c05f633..327896b10a 100644 --- a/src/soc/mediatek/mt8192/devapc.c +++ b/src/soc/mediatek/mt8192/devapc.c @@ -68,6 +68,14 @@ static void fmem_master_init(uintptr_t base) FOUR_BIT_DOM_REMAP_7, MAS_DOMAIN_15); } +static void scp_master_init(uintptr_t base) +{ + write32(getreg(base, SCP_DOM), MAS_DOMAIN_3); + + /* Let SCP_DOM register be read-only for security */ + write32(getreg(base, ONETIME_LOCK), 0x1); +} + struct devapc_init { uintptr_t base; void (*init)(uintptr_t base); @@ -77,6 +85,7 @@ struct devapc_init { { DEVAPC_PERI2_AO_BASE, NULL }, { DEVAPC_PERI_PAR_AO_BASE, NULL }, { DEVAPC_FMEM_AO_BASE, fmem_master_init }, + { SCP_CFG_BASE, scp_master_init }, }; void dapc_init(void) diff --git a/src/soc/mediatek/mt8192/include/soc/addressmap.h b/src/soc/mediatek/mt8192/include/soc/addressmap.h index 3a07802f8d..51a89e1cf3 100644 --- a/src/soc/mediatek/mt8192/include/soc/addressmap.h +++ b/src/soc/mediatek/mt8192/include/soc/addressmap.h @@ -41,6 +41,7 @@ enum { DRAMC_CHA_AO_BASE = IO_PHYS + 0x00230000, SSPM_SRAM_BASE = IO_PHYS + 0x00400000, SSPM_CFG_BASE = IO_PHYS + 0x00440000, + SCP_CFG_BASE = IO_PHYS + 0x00700000, DPM_PM_SRAM_BASE = IO_PHYS + 0x00900000, DPM_DM_SRAM_BASE = IO_PHYS + 0x00920000, DPM_CFG_BASE = IO_PHYS + 0x00940000, diff --git a/src/soc/mediatek/mt8192/include/soc/devapc.h b/src/soc/mediatek/mt8192/include/soc/devapc.h index 7ba6d46477..fd332dbd15 100644 --- a/src/soc/mediatek/mt8192/include/soc/devapc.h +++ b/src/soc/mediatek/mt8192/include/soc/devapc.h @@ -21,6 +21,11 @@ enum devapc_ao_offset { AO_APC_CON = 0x0F00, }; +enum scp_offset { + SCP_DOM = 0xA5080, + ONETIME_LOCK = 0xA5104, +}; + /* INFRA */ DEFINE_BIT(SCP_SSPM_SEC, 3) DEFINE_BIT(CPU_EB_SEC, 4) |