cpu/ti/am335x: Move from cpu to soc in tree

The AM335X is a SoC, so should be in the soc tree.

This moves all the existing am335x code to soc/ and updates any
references. It also adds a soc.c file as required for the ramstage.

Change-Id: Ic1ccb0e9b9c24a8b211b723b5f4cc26cdd0eaaab
Signed-off-by: Sam Lewis <sam.vr.lewis@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44378
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

1 files changed, 57 insertions, 0 deletions

diff --git a/src/soc/ti/am335x/header.c b/src/soc/ti/am335x/header.c
new file mode 100644
index 0000000000..9edfdd062b
--- /dev/null
+++ b/src/soc/ti/am335x/header.c
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <stdint.h>
+#include <symbols.h>
+
+#include "header.h"
+
+struct config_headers {
+	// The table of contents.
+	struct configuration_header_toc_item toc_chsettings;
+	struct configuration_header_toc_item toc_end;
+
+	// An inert instance of chsettings.
+	struct configuration_header_settings chsettings;
+} __packed;
+
+struct omap_image_headers {
+	union {
+		struct config_headers config_headers;
+		uint8_t bytes[512];
+	};
+	struct gp_device_header image_header;
+};
+
+// A symbol which defines how much of the image the iROM should load.
+extern char header_load_size;
+
+struct omap_image_headers headers __attribute__((section(".header"))) = {
+	.config_headers = {
+		.toc_chsettings = {
+			.start = offsetof(struct omap_image_headers,
+					  config_headers.chsettings),
+			.size = sizeof(struct configuration_header_settings),
+			.reserved = { 0, 0, 0 },
+			.filename = "CHSETTINGS\0"
+		},
+		.toc_end = {
+			.start = 0xffffffff,
+			.size = 0xffffffff,
+			.reserved = { 0xffffffff, 0xffffffff, 0xffffffff },
+			.filename = { 0xff, 0xff, 0xff, 0xff,
+				      0xff, 0xff, 0xff, 0xff,
+				      0xff, 0xff, 0xff, 0xff }
+		},
+		.chsettings = {
+			.key = 0xc0c0c0c1,
+			.valid = 0,
+			.version = 1,
+			.reserved = 0,
+			.flags = 0
+		}
+	},
+	.image_header = {
+		.size = (uintptr_t)&header_load_size,
+		.destination = (uintptr_t)_dram
+	}
+};