soc/amd/genoa: rename to genoa_poc

Even though this SoC is called 'Genoa', the openSIL implementation and
the corresponding coreboot integration is only a proof of concept that
isn't fully featured, has known limitations and bugs, and is not meant
for or ready to being productized. Adding the proof of concept suffix to
the name should point this out clearly enough so that no potential
customer could infer that this might be a fully functional and supported
implementation which it is not.

Change-Id: Ia459b1e007dcfd8e8710c12e252b2f9a4ae19b72
Signed-off-by: Varshit Pandya <pandyavarshit@gmail.com>
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77894
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 27 insertions, 0 deletions

diff --git a/src/soc/amd/genoa_poc/reset.c b/src/soc/amd/genoa_poc/reset.c
new file mode 100644
index 0000000000..ac0c981718
--- /dev/null
+++ b/src/soc/amd/genoa_poc/reset.c
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <arch/io.h>
+#include <cf9_reset.h>
+#include <reset.h>
+#include <soc/southbridge.h>
+#include <amdblocks/acpimmio.h>
+#include <amdblocks/reset.h>
+
+void do_cold_reset(void)
+{
+	/* De-assert and then assert all PwrGood signals on CF9 reset. */
+	pm_write16(PWR_RESET_CFG, pm_read16(PWR_RESET_CFG) |
+		TOGGLE_ALL_PWR_GOOD);
+	outb(RST_CPU | SYS_RST, RST_CNT);
+}
+
+void do_warm_reset(void)
+{
+	/* Warm resets are not supported and must be executed as cold */
+	do_cold_reset();
+}
+
+void do_board_reset(void)
+{
+	do_cold_reset();
+}