coreboot: rename from NeKernel firmware, refactor symbols to `cb_`, update docs

This patch completes a major renaming and cleanup of the firmware codebase:

- Rename project from "NeKernel Firmware" to "CoreBoot" in README and comments.
- Replace all `mp_`-prefixed symbols with `cb_` to reflect the new naming scheme.
- Remove obsolete SPECIFICATION.TXT and replace with SPECIFICATION_FIRMWARE.md.
- Update memory-mapped I/O helpers, TLB init, and platform-specific code to match `cb_*` naming.
- Refactor low-level UART, panic, PCI-tree, partition map, and context setup to use unified `cb_` API.
- Adjust linker scripts and boot vectors for ARM64, PPC64, and RV64 targets accordingly.
- Add Doxygen documentation note to README.

This change is part of an ongoing effort to rebrand and unify the firmware interface, improve naming clarity, and better align with platform-specific toolchains.

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>

1 files changed, 11 insertions, 11 deletions

diff --git a/lib/fd.h b/lib/fd.h
index f2e4655..f89bb61 100644
--- a/lib/fd.h
+++ b/lib/fd.h
@@ -8,25 +8,25 @@
 
 #include <lib/boot.h>
 
-struct _mp_file_descriptor;
+struct _cb_file_descriptor;
 
 /// @brief CoreBoot file/device descriptor.
 /// @version 1
-typedef struct _mp_file_descriptor
+typedef struct _cb_file_descriptor
 {
 	int32_t f_kind;
 	int32_t f_filesystem;
 
-	size_t (*f_write)(void* ptr, size_t size, size_t nitems, struct _mp_file_descriptor* self);
-	size_t (*f_read)(void* ptr, size_t size, size_t nitems, struct _mp_file_descriptor* self);
-	int (*f_seek)(struct _mp_file_descriptor* self, size_t off, int whence);
-	int (*f_tell)(struct _mp_file_descriptor* self);
-	int (*f_rewind)(struct _mp_file_descriptor* self);
-	int (*f_eof)(struct _mp_file_descriptor* self);
-	int (*f_close)(struct _mp_file_descriptor* self);
-} mp_file_descriptor_t;
+	size_t (*f_write)(void* ptr, size_t size, size_t nitems, struct _cb_file_descriptor* self);
+	size_t (*f_read)(void* ptr, size_t size, size_t nitems, struct _cb_file_descriptor* self);
+	int (*f_seek)(struct _cb_file_descriptor* self, size_t off, int whence);
+	int (*f_tell)(struct _cb_file_descriptor* self);
+	int (*f_rewind)(struct _cb_file_descriptor* self);
+	int (*f_eof)(struct _cb_file_descriptor* self);
+	int (*f_close)(struct _cb_file_descriptor* self);
+} cb_file_descriptor_t;
 
 /// @brief Grabs a new device reference.
 /// @param path the device path.
 /// @return
-mp_file_descriptor_t* mp_grab_fd(const char* path);
+cb_file_descriptor_t* cb_grab_fd(const char* path);