diff options
| author | Sudheer Kumar Amrabadi <samrabad@codeaurora.org> | 2022-03-22 20:00:29 +0530 |
|---|---|---|
| committer | Julius Werner <jwerner@chromium.org> | 2022-06-01 00:54:08 +0000 |
| commit | dfe817e45165fdbb8f4f7f83de83710cc46e75d6 (patch) | |
| tree | 63d67295912e286202f49645d0636e451dcfae6c /src/soc/qualcomm | |
| parent | 363202b43589ec240c4a0c8f5b449fbd5c1333f8 (diff) | |
sc7280: Improve performance by removing delays in cpucp init
As cpucp prepare takes 300 msec moving to before ramstage
BUG=b:218406702
TEST=Validated on qualcomm sc7280 development board observed
total timestamp as 1.73 sec from 1.97 sec
Change-Id: I1a727514810a505cd1005ae7f52e5215e404b3bb
Signed-off-by: Sudheer Kumar Amrabadi <quic_samrabad@quicinc.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63085
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Shelley Chen <shchen@google.com>
Diffstat (limited to 'src/soc/qualcomm')
| -rw-r--r-- | src/soc/qualcomm/sc7280/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/soc/qualcomm/sc7280/cpucp_load_reset.c | 9 |
2 files changed, 5 insertions, 5 deletions
diff --git a/src/soc/qualcomm/sc7280/Makefile.inc b/src/soc/qualcomm/sc7280/Makefile.inc index 85508e97bb..a20d49b8cd 100644 --- a/src/soc/qualcomm/sc7280/Makefile.inc +++ b/src/soc/qualcomm/sc7280/Makefile.inc @@ -27,6 +27,7 @@ verstage-$(CONFIG_DRIVERS_UART) += ../common/qupv3_uart.c ################################################################################ romstage-y += cbmem.c romstage-y += shrm_load_reset.c +romstage-y += cpucp_load_reset.c romstage-y += ../common/qclib.c romstage-y += ../common/mmu.c romstage-y += mmu.c diff --git a/src/soc/qualcomm/sc7280/cpucp_load_reset.c b/src/soc/qualcomm/sc7280/cpucp_load_reset.c index cfb16879de..6f8f51ff9f 100644 --- a/src/soc/qualcomm/sc7280/cpucp_load_reset.c +++ b/src/soc/qualcomm/sc7280/cpucp_load_reset.c @@ -11,13 +11,11 @@ void cpucp_prepare(void) { - /* allow NS access to EPSS memory*/ + /* allow NS access to EPSS memory */ setbits32(&epss_top->access_override, 0x1); - /* Enable subsystem clock. Required for CPUCP PDMEM access*/ + /* Enable subsystem clock. Required for CPUCP PDMEM access */ setbits32(&epss_fast->epss_muc_clk_ctrl, 0x1); - if (!wait_ms(300, ((read32(&epss_fast->epss_muc_clk_ctrl) & 0x1) != 0x1))) - printk(BIOS_ERR, "%s: cannot get CPUCP PDMEM access.\n", __func__); } void cpucp_fw_load_reset(void) @@ -25,7 +23,8 @@ void cpucp_fw_load_reset(void) struct prog cpucp_fw_prog = PROG_INIT(PROG_PAYLOAD, CONFIG_CBFS_PREFIX "/cpucp"); - cpucp_prepare(); + if (!wait_ms(300, (read32(&epss_fast->epss_muc_clk_ctrl) & 0x1) == 0x1)) + printk(BIOS_ERR, "%s: cannot get CPUCP PDMEM access.\n", __func__); if (!selfload(&cpucp_fw_prog)) die("SOC image: CPUCP load failed"); |