From 2f39eae41d750817143f9372f67de6b1ee96b4a6 Mon Sep 17 00:00:00 2001
From: Patrick Georgi <patrick@georgi-clan.de>
Date: Sat, 31 Aug 2013 08:16:27 +0200
Subject: Remove NRV2B compression support

It wasn't even hooked up to the build system anymore.

Change-Id: I4b962ffd945b39451e19da3ec2f7b8e0eecf2e53
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/3892
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
---
 src/lib/nrv2b.c    | 84 ------------------------------------------------------
 src/lib/selfboot.c |  9 ------
 2 files changed, 93 deletions(-)
 delete mode 100644 src/lib/nrv2b.c

(limited to 'src/lib')

diff --git a/src/lib/nrv2b.c b/src/lib/nrv2b.c
deleted file mode 100644
index d84e99ec0b..0000000000
--- a/src/lib/nrv2b.c
+++ /dev/null
@@ -1,84 +0,0 @@
-// This GETBIT is supposed to work on little endian
-// 32bit systems. The algorithm will definitely need
-// some fixing on other systems, but it might not be
-// a problem since the nrv2b binary behaves the same..
-
-#ifndef ENDIAN
-#define ENDIAN   0
-#endif
-#ifndef BITSIZE
-#define BITSIZE 32
-#endif
-
-#define GETBIT_8(bb, src, ilen) \
-    (((bb = bb & 0x7f ? bb*2 : ((unsigned)src[ilen++]*2+1)) >> 8) & 1)
-
-#define GETBIT_LE16(bb, src, ilen) \
-    (bb*=2,bb&0xffff ? (bb>>16)&1 : (ilen+=2,((bb=(src[ilen-2]+src[ilen-1]*256u)*2+1)>>16)&1))
-#define GETBIT_LE32(bb, src, ilen) \
-    (bc > 0 ? ((bb>>--bc)&1) : (bc=31,\
-    bb=*(const uint32_t *)((src)+ilen),ilen+=4,(bb>>31)&1))
-
-#if ENDIAN == 0 && BITSIZE == 8
-#define GETBIT(bb, src, ilen) GETBIT_8(bb, src, ilen)
-#endif
-#if ENDIAN == 0 && BITSIZE == 16
-#define GETBIT(bb, src, ilen) GETBIT_LE16(bb, src, ilen)
-#endif
-#if ENDIAN == 0 && BITSIZE == 32
-#define GETBIT(bb, src, ilen) GETBIT_LE32(bb, src, ilen)
-#endif
-static unsigned long unrv2b(uint8_t * src, uint8_t * dst, unsigned long *ilen_p)
-{
-	unsigned long ilen = 0, olen = 0, last_m_off = 1;
-	uint32_t bb = 0;
-	unsigned bc = 0;
-	const uint8_t *m_pos;
-
-	// skip length
-	src += 4;
-	/* FIXME: check olen with the length stored in first 4 bytes */
-
-	for (;;) {
-		unsigned int m_off, m_len;
-		while (GETBIT(bb, src, ilen)) {
-			dst[olen++] = src[ilen++];
-		}
-
-		m_off = 1;
-		do {
-			m_off = m_off * 2 + GETBIT(bb, src, ilen);
-		} while (!GETBIT(bb, src, ilen));
-		if (m_off == 2) {
-			m_off = last_m_off;
-		} else {
-			m_off = (m_off - 3) * 256 + src[ilen++];
-			if (m_off == 0xffffffffU)
-				break;
-			last_m_off = ++m_off;
-		}
-
-		m_len = GETBIT(bb, src, ilen);
-		m_len = m_len * 2 + GETBIT(bb, src, ilen);
-		if (m_len == 0) {
-			m_len++;
-			do {
-				m_len = m_len * 2 + GETBIT(bb, src, ilen);
-			} while (!GETBIT(bb, src, ilen));
-			m_len += 2;
-		}
-		m_len += (m_off > 0xd00);
-
-		m_pos = dst + olen - m_off;
-		dst[olen++] = *m_pos++;
-		do {
-			dst[olen++] = *m_pos++;
-		} while (--m_len > 0);
-	}
-
-	*ilen_p = ilen;
-
-	return olen;
-
-}
-
diff --git a/src/lib/selfboot.c b/src/lib/selfboot.c
index d8c7392038..f69ad1435b 100644
--- a/src/lib/selfboot.c
+++ b/src/lib/selfboot.c
@@ -454,15 +454,6 @@ static int load_self_segments(
 						return 0;
 					break;
 				}
-#if CONFIG_COMPRESSED_PAYLOAD_NRV2B
-				case CBFS_COMPRESS_NRV2B: {
-					printk(BIOS_DEBUG, "using NRV2B\n");
-					unsigned long unrv2b(u8 *src, u8 *dst, unsigned long *ilen_p);
-					unsigned long tmp;
-					len = unrv2b(src, dest, &tmp);
-					break;
-				}
-#endif
 				case CBFS_COMPRESS_NONE: {
 					printk(BIOS_DEBUG, "it's not compressed!\n");
 					memcpy(dest, src, len);
-- 
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