Change in coreboot[master]: soc/mediatek/mt8186: Disable unused power

[Felix Held (Code Review)]

Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/63247 )

Change subject: soc/mediatek/mt8186: Disable unused power
......................................................................

soc/mediatek/mt8186: Disable unused power

To save the power consumption, we disable the unused power of
optional components in coreboot.

BUG=none
TEST=the value of power consumption is as expected.

Signed-off-by: Rex-BC Chen 
Change-Id: Ic0c7c2d1b6a4c26980a3029b60051ab1406406ea
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63247
Tested-by: build bot (Jenkins) 
Reviewed-by: Yu-Ping Wu 
---
M src/soc/mediatek/mt8186/include/soc/spm.h
M src/soc/mediatek/mt8186/spm.c
2 files changed, 4 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Yu-Ping Wu: Looks good to me, approved

diff --git a/src/soc/mediatek/mt8186/include/soc/spm.h b/src/soc/mediatek/mt8186/include/soc/spm.h
index 18a9744..56e1c7a 100644
--- a/src/soc/mediatek/mt8186/include/soc/spm.h
+++ b/src/soc/mediatek/mt8186/include/soc/spm.h
@@ -836,6 +836,7 @@

check_member(mtk_spm_regs, poweron_config_set, 0x0);
 check_member(mtk_spm_regs, dis_pwr_con, 0x354);
+check_member(mtk_spm_regs, nna_pwr_con, 0x3E0);
 check_member(mtk_spm_regs, ap_mdsrc_req, 0x430);
 check_member(mtk_spm_regs, ssusb_top_pwr_con, 0x9F0);
 check_member(mtk_spm_regs, ssusb_top_p1_pwr_con, 0x9F4);
diff --git a/src/soc/mediatek/mt8186/spm.c b/src/soc/mediatek/mt8186/spm.c
index a1186ca..30d56ff 100644
--- a/src/soc/mediatek/mt8186/spm.c
+++ b/src/soc/mediatek/mt8186/spm.c
@@ -362,6 +362,9 @@
    	((pwrctrl->reg_dpmaif_vrf18_req_mask_b & 0x1) << 8) |
    	((pwrctrl->reg_dpmaif_ddren_req_mask_b & 0x1) << 9));
    /* Auto-gen End */
+
+	/* Disable unused optional components */
+	write32(&mtk_spm->nna_pwr_con, BIT(1) | BIT(4) | BIT(8));
 }

static void spm_hw_s1_state_monitor(int en)