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libpayload/nvme: Fix controller disablement in (de)init sequence 

We wrote to the wrong register. The EN bit is in the CC (Controller
Configuration) register at 0x14.

Fixes re-initialization in QEMU and on siemens/chili during a second
FILO run.

Change-Id: I125de55d7f1a7c9f070437190c5a08a288b274f8
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63935
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Thomas Heijligen <src@posteo.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
This commit is contained in:
Nico Huber 2022-04-28 18:34:38 +02:00
parent 88b041897f
commit 8ddecd8538
1 changed files with 2 additions and 2 deletions
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4
payloads/libpayload/drivers/storage/nvme.c
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@ -147,7 +147,7 @@ static void nvme_detach_device(struct storage_dev *dev)
if (delete_admin_queues(nvme))
printf("NVME ERROR: Failed to delete admin queues\n");
write32(nvme->config + 0x1c, 0);
write32(nvme->config + 0x14, 0);
int status, timeout = (read64(nvme->config) >> 24 & 0xff) * 500;
do {
@ -347,7 +347,7 @@ static void nvme_init(pcidev_t dev)
const uint32_t cc = NVME_CC_EN | NVME_CC_CSS | NVME_CC_MPS | NVME_CC_AMS | NVME_CC_SHN
| NVME_CC_IOSQES | NVME_CC_IOCQES;
write32(nvme->config + 0x1c, 0);
write32(nvme->config + 0x14, 0);
int status, timeout = (read64(nvme->config) >> 24 & 0xff) * 500;
do {