diff options
| author | Marshall Dawson <marshalldawson3rd@gmail.com> | 2017-12-14 12:39:36 -0700 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2017-12-20 16:35:53 +0000 |
| commit | 854d4dd9e2bd803a81ae0c90c26143a10f25abc4 (patch) | |
| tree | c600ed01ce385657ad96ea68cc06a4919c83b7f9 /src | |
| parent | f183a85932246dee7c6a1a78d7c944c46c123450 (diff) | |
amd/stoneyridge: Force PSP command reg settings in bootblock
A subsequent patch to the PSP library will rely on the device already
having its PCI command register set to allow memory decoding and
mastering enabled.
Program the command register ahead of loading the SMU FW1 blob in
bootblock. When the device has not been set up (e.g. when SMU FW
is not selectable), AGESA sets up the device. As a result, a
similar change is not required before sending the DRAM ready
command.
Change-Id: Id586106751286c4767b5c16ed7e1604523635492
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/22876
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/amd/stoneyridge/bootblock/bootblock.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/soc/amd/stoneyridge/bootblock/bootblock.c b/src/soc/amd/stoneyridge/bootblock/bootblock.c index 7d659d75b5..22b16273e2 100644 --- a/src/soc/amd/stoneyridge/bootblock/bootblock.c +++ b/src/soc/amd/stoneyridge/bootblock/bootblock.c @@ -88,7 +88,7 @@ void bootblock_soc_early_init(void) */ static void load_smu_fw1(void) { - u32 base, limit; + u32 base, limit, cmd; /* Open a posted hole from 0x80000000 : 0xfed00000-1 */ base = (0x80000000 >> 8) | MMIO_WE | MMIO_RE; @@ -100,6 +100,11 @@ static void load_smu_fw1(void) pci_write_config32(SOC_PSP_DEV, PSP_MAILBOX_BAR, PSP_MAILBOX_BAR3_BASE); pci_write_config32(SOC_PSP_DEV, PSP_BAR_ENABLES, PSP_MAILBOX_BAR_EN); + /* Enable memory access and master */ + cmd = pci_read_config32(SOC_PSP_DEV, PCI_COMMAND); + cmd |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER; + pci_write_config32(SOC_PSP_DEV, PCI_COMMAND, cmd); + psp_load_named_blob(MBOX_BIOS_CMD_SMU_FW, "smu_fw"); } |