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, 28 insertions, 0 deletions

diff --git a/drivers/misc/habanalabs/include/goya/goya_fw_if.h b/drivers/misc/habanalabs/include/goya/goya_fw_if.h
new file mode 100644
index 000000000000..a9920cb4a07b
--- /dev/null
+++ b/drivers/misc/habanalabs/include/goya/goya_fw_if.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright 2016-2018 HabanaLabs, Ltd.
+ * All Rights Reserved.
+ *
+ */
+
+#ifndef GOYA_FW_IF_H
+#define GOYA_FW_IF_H
+
+#define CPU_BOOT_ADDR		0x7FF8040000ull
+
+#define UBOOT_FW_OFFSET		0x100000		/* 1MB in SRAM */
+#define LINUX_FW_OFFSET		0x800000		/* 8MB in DDR */
+
+enum goya_pll_index {
+	CPU_PLL = 0,
+	IC_PLL,
+	MC_PLL,
+	MME_PLL,
+	PCI_PLL,
+	EMMC_PLL,
+	TPC_PLL
+};
+
+#define GOYA_PLL_FREQ_LOW		50000000 /* 50 MHz */
+
+#endif /* GOYA_FW_IF_H */