diff options
| author | Felix Held <felix-coreboot@felixheld.de> | 2022-12-08 19:14:43 +0100 |
|---|---|---|
| committer | Eric Lai <eric_lai@quanta.corp-partner.google.com> | 2022-12-12 01:26:03 +0000 |
| commit | bd9ab06808e956135a961566d0644c404b1ab751 (patch) | |
| tree | b4dff589f3ab726275079f5668d21fe3a9111f01 /src/soc | |
| parent | 4f30539b476852b5f0da3174b84bf180e76e3ec7 (diff) | |
vc/amd/fsp/morgana/FspmUpd: don't use pointers for usb_phy config
The size of a pointer changes between a 32 and 64 bit coreboot build. In
order to be able to use a 32 bit FSP in a 64 bit coreboot build, change
the pointer in the UPDs to a uint32_t to always have a 32 bit field in
the UPD for this. Also make sure that the address of the lcl_usb_phy
struct is located below the 4GB boundary, so that the truncation to 32
bits won't result in pointing to a different memory location than
intended. In this error case, which I don't expect to happen, print an
error and write 0 to mcfg->usb_phy_ptr so that the FSP will use its
default values.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I1394aa6ef5f401e0c7bdd4861f1e28ae46e56e4f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70505
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/amd/morgana/fsp_m_params.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/soc/amd/morgana/fsp_m_params.c b/src/soc/amd/morgana/fsp_m_params.c index 0c51c1afb8..0b4bf2acc0 100644 --- a/src/soc/amd/morgana/fsp_m_params.c +++ b/src/soc/amd/morgana/fsp_m_params.c @@ -7,6 +7,7 @@ #include <amdblocks/ioapic.h> #include <amdblocks/memmap.h> #include <assert.h> +#include <console/console.h> #include <console/uart.h> #include <device/device.h> #include <fsp/api.h> @@ -158,9 +159,15 @@ void platform_fsp_memory_init_params_cb(FSPM_UPD *mupd, uint32_t version) lcl_usb_phy.Version_Major = FSP_USB_STRUCT_MAJOR_VERSION; lcl_usb_phy.Version_Minor = FSP_USB_STRUCT_MINOR_VERSION; lcl_usb_phy.TableLength = sizeof(struct usb_phy_config); - mcfg->usb_phy = &lcl_usb_phy; + if ((uintptr_t)&lcl_usb_phy <= UINT32_MAX) { + mcfg->usb_phy_ptr = (uint32_t)(uintptr_t)&lcl_usb_phy; + } else { + printk(BIOS_ERR, "USB PHY config struct above 4GB; can't pass USB PHY " + "configuration to 32 bit FSP.\n"); + mcfg->usb_phy_ptr = 0; + } } else { - mcfg->usb_phy = NULL; + mcfg->usb_phy_ptr = 0; } fsp_fill_pcie_ddi_descriptors(mcfg); |