diff options
| author | Felix Held <felix-coreboot@felixheld.de> | 2021-01-29 22:59:42 +0100 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2021-01-31 01:12:37 +0000 |
| commit | 84439c26d8afd0079ce9cbaddf11c911974c3b1b (patch) | |
| tree | 2259bb822406823972f3650e4730174ffa1e2f4a /src/soc/amd/common/block/psp/psp_gen2.c | |
| parent | 31fdefe5842b7b6f77f341b65cb7851c72fc8516 (diff) | |
soc/amd/picasso/psp: move soc_get_mbox_address to common PSP gen2 code
The function to get the PSP mailbox address is the same on Picasso and
Cezanne, so move it to the common PSP generation 2 code. The function is
only used in the same compilation unit, but it can't be marked as static
due to the function prototype in amdblocks/psp.h that is still needed
for Stoneyridge.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ieea91ef76523d303f948d29ef48e3b2e56293f26
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50151
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Diffstat (limited to 'src/soc/amd/common/block/psp/psp_gen2.c')
| -rw-r--r-- | src/soc/amd/common/block/psp/psp_gen2.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/soc/amd/common/block/psp/psp_gen2.c b/src/soc/amd/common/block/psp/psp_gen2.c index 59e62551c1..ef71d5b42a 100644 --- a/src/soc/amd/common/block/psp/psp_gen2.c +++ b/src/soc/amd/common/block/psp/psp_gen2.c @@ -1,11 +1,28 @@ /* SPDX-License-Identifier: GPL-2.0-only */ +#include <console/console.h> +#include <cpu/x86/msr.h> #include <device/mmio.h> #include <timer.h> #include <amdblocks/psp.h> #include <soc/iomap.h> #include "psp_def.h" +#define PSP_MAILBOX_OFFSET 0x10570 + +void *soc_get_mbox_address(void) +{ + uintptr_t psp_mmio; + + psp_mmio = rdmsr(MSR_PSP_ADDR).lo; + if (!psp_mmio) { + printk(BIOS_WARNING, "PSP: MSR_PSP_ADDR uninitialized\n"); + return 0; + } + + return (void *)(psp_mmio + PSP_MAILBOX_OFFSET); +} + static u16 rd_mbox_sts(struct pspv2_mbox *mbox) { union { |