diff options
| author | Shelley Chen <shchen@google.com> | 2022-10-18 16:32:20 -0700 |
|---|---|---|
| committer | Shelley Chen <shchen@google.com> | 2022-10-20 16:34:01 +0000 |
| commit | 1b07797a7b79ea6c11421b61b9cf14b92cb91c66 (patch) | |
| tree | e42d3fe0eac1dc7bb87749e9e631446d00efd47b /src/soc | |
| parent | d164feb72602da958b644643b44e754f04a1f281 (diff) | |
soc/qualcomm/sc7280: Remove NVMe init
We are required to boot with eMMC enabled in the BIOS to store modem
calibration data. Thus, it doesn't make sense to enable NVMe at boot
time since we will never boot from NVMe w/o eMMC. We may as well take
the boot time reduction (~100ms) by eliminating NVMe initialization.
BUG=b:185426670, b:254281839
BRANCH=None
TEST=Boot after disabling NVMe and make sure that it still boots
Note that we are able to see a little over 100ms in boot time
savings with this change.
Before: 40:device configuration 824,021 (102,701)
After: 40:device configuration 717,402 (44)
Cq-Depend: chromium:3964185
Change-Id: I94f614ba0369c073617949285c0781aef5c6263f
Signed-off-by: Shelley Chen <shchen@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68562
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/qualcomm/sc7280/Kconfig | 2 | ||||
| -rw-r--r-- | src/soc/qualcomm/sc7280/soc.c | 10 |
2 files changed, 7 insertions, 5 deletions
diff --git a/src/soc/qualcomm/sc7280/Kconfig b/src/soc/qualcomm/sc7280/Kconfig index ccba8ff9b5..3f3ded3c59 100644 --- a/src/soc/qualcomm/sc7280/Kconfig +++ b/src/soc/qualcomm/sc7280/Kconfig @@ -19,8 +19,6 @@ config SOC_QUALCOMM_SC7280 select HAVE_LINEAR_FRAMEBUFFER select COMPRESS_BOOTBLOCK select HAVE_UART_SPECIAL - select PCI - select NO_ECAM_MMCONF_SUPPORT if SOC_QUALCOMM_SC7280 diff --git a/src/soc/qualcomm/sc7280/soc.c b/src/soc/qualcomm/sc7280/soc.c index a6851dfcd7..02194a23a7 100644 --- a/src/soc/qualcomm/sc7280/soc.c +++ b/src/soc/qualcomm/sc7280/soc.c @@ -45,10 +45,14 @@ static struct device_operations soc_ops = { static void enable_soc_dev(struct device *dev) { /* Set the operations if it is a special bus type */ - if (dev->path.type == DEVICE_PATH_DOMAIN) - dev->ops = &pci_domain_ops; - else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) + if (dev->path.type == DEVICE_PATH_DOMAIN) { + if (CONFIG(PCI) && CONFIG(NO_ECAM_MMCONF_SUPPORT)) + dev->ops = &pci_domain_ops; + else + printk(BIOS_INFO, "Skip setting PCIe ops\n"); + } else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) { dev->ops = &soc_ops; + } } struct chip_operations soc_qualcomm_sc7280_ops = { |