habanalabs: add basic Goya h/w initialization

This patch adds the basic part of Goya's H/W initialization. It adds code
that initializes Goya's internal CPU, various registers that are related to
internal routing, scrambling, workarounds for H/W bugs, etc.

It also initializes Goya's security scheme that prevents the user from
abusing Goya to steal data from the host, crash the host, change
Goya's F/W, etc.

Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 30 insertions, 0 deletions

diff --git a/drivers/misc/habanalabs/include/hl_boot_if.h b/drivers/misc/habanalabs/include/hl_boot_if.h
new file mode 100644
index 000000000000..7475732b9996
--- /dev/null
+++ b/drivers/misc/habanalabs/include/hl_boot_if.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright 2018 HabanaLabs, Ltd.
+ * All Rights Reserved.
+ *
+ */
+
+#ifndef HL_BOOT_IF_H
+#define HL_BOOT_IF_H
+
+enum cpu_boot_status {
+	CPU_BOOT_STATUS_NA = 0,		/* Default value after reset of chip */
+	CPU_BOOT_STATUS_IN_WFE,
+	CPU_BOOT_STATUS_DRAM_RDY,
+	CPU_BOOT_STATUS_SRAM_AVAIL,
+	CPU_BOOT_STATUS_IN_BTL,		/* BTL is H/W FSM */
+	CPU_BOOT_STATUS_IN_PREBOOT,
+	CPU_BOOT_STATUS_IN_SPL,
+	CPU_BOOT_STATUS_IN_UBOOT,
+	CPU_BOOT_STATUS_DRAM_INIT_FAIL,
+	CPU_BOOT_STATUS_FIT_CORRUPTED
+};
+
+enum kmd_msg {
+	KMD_MSG_NA = 0,
+	KMD_MSG_GOTO_WFE,
+	KMD_MSG_FIT_RDY
+};
+
+#endif /* HL_BOOT_IF_H */