[LEDE-DEV] [PATCH 8/9] uboot-lantiq: vrx200 - lzma compress gphy firmware

[Mathias Kresin]

The default bootloader partition of some devices is to small for an
u-boot with uncompressed gphy firmware(s).

Instead of increasing the bootloader partition size, in compare to the
stock firmware, compress the firmware. This would allow the bootloader
of at least the FritzBox 3370 as well as the bootloader of the
VGV7510KW22 to fit into the bootloader partition of the stock firmware.

Signed-off-by: Mathias Kresin <dev at kresin.me>
---
 package/boot/uboot-lantiq/Makefile                 | 13 +++++----
 ...014-MIPS-add-support-for-Lantiq-XWAY-SoCs.patch | 34 ++++++++++++++--------
 2 files changed, 29 insertions(+), 18 deletions(-)

diff --git a/package/boot/uboot-lantiq/Makefile b/package/boot/uboot-lantiq/Makefile
index 11a10f0..5b61f14 100644
--- a/package/boot/uboot-lantiq/Makefile
+++ b/package/boot/uboot-lantiq/Makefile
@@ -330,18 +330,19 @@ define BuildUBootPackage
 	$(call Package/uboot/template,$(1),$(TITLE),$(DEPS))
 endef
 
-define CopyVR9Firmware
-	$(CP) $(FIRMWARE_LANTIQ_SOURCE)/vr9_phy$(1)_a$(2)x.bin \
+define CompressVR9Firmware
+	$(STAGING_DIR_HOST)/bin/lzma e \
+		$(FIRMWARE_LANTIQ_SOURCE)/vr9_phy$(1)_a$(2)x.bin \
 		$(PKG_BUILD_DIR)/arch/mips/cpu/mips32/vrx200/fw_phy$(1)_a$(2)x.blob
 endef
 
 define Build/Prepare
 	$(call Build/Prepare/Default)
 	mkdir -p $(PKG_BUILD_DIR)/arch/mips/cpu/mips32/vrx200/
-	$(call CopyVR9Firmware,11g,1)
-	$(call CopyVR9Firmware,11g,2)
-	$(call CopyVR9Firmware,22f,1)
-	$(call CopyVR9Firmware,22f,2)
+	$(call CompressVR9Firmware,11g,1)
+	$(call CompressVR9Firmware,11g,2)
+	$(call CompressVR9Firmware,22f,1)
+	$(call CompressVR9Firmware,22f,2)
 endef
 
 define Build/Configure
diff --git a/package/boot/uboot-lantiq/patches/0014-MIPS-add-support-for-Lantiq-XWAY-SoCs.patch b/package/boot/uboot-lantiq/patches/0014-MIPS-add-support-for-Lantiq-XWAY-SoCs.patch
index 1c44857..08133bb 100644
--- a/package/boot/uboot-lantiq/patches/0014-MIPS-add-support-for-Lantiq-XWAY-SoCs.patch
+++ b/package/boot/uboot-lantiq/patches/0014-MIPS-add-support-for-Lantiq-XWAY-SoCs.patch
@@ -2510,7 +2510,7 @@ Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck at gmail.com>
 +}
 --- /dev/null
 +++ b/arch/mips/cpu/mips32/vrx200/gphy.c
-@@ -0,0 +1,58 @@
+@@ -0,0 +1,68 @@
 +/*
 + * Copyright (C) 2011-2013 Daniel Schwierzeck, daniel.schwierzeck at gmail.com
 + *
@@ -2521,17 +2521,23 @@ Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck at gmail.com>
 +#include <asm/lantiq/io.h>
 +#include <asm/arch/soc.h>
 +#include <asm/arch/gphy.h>
++#include <lzma/LzmaTypes.h>
++#include <lzma/LzmaDec.h>
++#include <lzma/LzmaTools.h>
 +
-+static inline void ltq_gphy_copy(const void *fw_start, const void *fw_end,
++static inline void ltq_gphy_decompress(const void *fw_start, const void *fw_end,
 +				ulong dst_addr)
 +{
 +	const ulong fw_len = (ulong) fw_end - (ulong) fw_start;
 +	const ulong addr = CKSEG1ADDR(dst_addr);
 +
-+	debug("ltq_gphy_copy: addr %08lx, fw_start %p, fw_end %p\n",
++	debug("ltq_gphy_decompress: addr %08lx, fw_start %p, fw_end %p\n",
 +		addr, fw_start, fw_end);
 +
-+	memcpy((void *) addr, fw_start, fw_len);
++	SizeT lzma_len = 65536;
++	int ret = lzmaBuffToBuffDecompress(
++	(unsigned char *)addr, &lzma_len,
++	(unsigned char *)fw_start, fw_len);
 +}
 +
 +void ltq_gphy_phy11g_a1x_load(ulong addr)
@@ -2539,8 +2545,9 @@ Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck at gmail.com>
 +	extern ulong __ltq_fw_phy11g_a1x_start;
 +	extern ulong __ltq_fw_phy11g_a1x_end;
 +
-+	ltq_gphy_copy(&__ltq_fw_phy11g_a1x_start, &__ltq_fw_phy11g_a1x_end,
-+			addr);
++	ltq_gphy_decompress(&__ltq_fw_phy11g_a1x_start,
++			    &__ltq_fw_phy11g_a1x_end,
++			    addr);
 +}
 +
 +void ltq_gphy_phy11g_a2x_load(ulong addr)
@@ -2548,8 +2555,9 @@ Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck at gmail.com>
 +	extern ulong __ltq_fw_phy11g_a2x_start;
 +	extern ulong __ltq_fw_phy11g_a2x_end;
 +
-+	ltq_gphy_copy(&__ltq_fw_phy11g_a2x_start, &__ltq_fw_phy11g_a2x_end,
-+			addr);
++	ltq_gphy_decompress(&__ltq_fw_phy11g_a2x_start,
++			    &__ltq_fw_phy11g_a2x_end,
++			    addr);
 +}
 +
 +void ltq_gphy_phy22f_a1x_load(ulong addr)
@@ -2557,8 +2565,9 @@ Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck at gmail.com>
 +	extern ulong __ltq_fw_phy22f_a1x_start;
 +	extern ulong __ltq_fw_phy22f_a1x_end;
 +
-+	ltq_gphy_copy(&__ltq_fw_phy22f_a1x_start, &__ltq_fw_phy22f_a1x_end,
-+			addr);
++	ltq_gphy_decompress(&__ltq_fw_phy22f_a1x_start,
++			    &__ltq_fw_phy22f_a1x_end,
++			    addr);
 +}
 +
 +void ltq_gphy_phy22f_a2x_load(ulong addr)
@@ -2566,8 +2575,9 @@ Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck at gmail.com>
 +	extern ulong __ltq_fw_phy22f_a2x_start;
 +	extern ulong __ltq_fw_phy22f_a2x_end;
 +
-+	ltq_gphy_copy(&__ltq_fw_phy22f_a2x_start, &__ltq_fw_phy22f_a2x_end,
-+			addr);
++	ltq_gphy_decompress(&__ltq_fw_phy22f_a2x_start,
++			    &__ltq_fw_phy22f_a2x_end,
++			    addr);
 +}
 --- /dev/null
 +++ b/arch/mips/cpu/mips32/vrx200/gphy_fw.S
-- 
1.9.1