[U-Boot] [PATCH 0/2] Add DYNAMIC_CRC_TABLE to am335x_evm
The spl image when built for am335x_evm_defconfig exceeds the maximum sram size when new functionality is added. The following patches are part of an effort to reduce the size.
Faiz Abbas (2): lib: Kconfig: Move DYNAMIC_CRC_TABLE to Kconfig configs: am335x_evm: Add DYNAMIC_CRC_TABLE
configs/am335x_evm_defconfig | 1 + include/configs/am335x_evm.h | 2 -- lib/Kconfig | 6 ++++++ lib/crc32.c | 6 +++--- 4 files changed, 10 insertions(+), 5 deletions(-)
Add CONFIG prefix to DYNAMIC_CRC_TABLE and implement it in Kconfig.
Signed-off-by: Faiz Abbas faiz_abbas@ti.com --- lib/Kconfig | 6 ++++++ lib/crc32.c | 6 +++--- 2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/lib/Kconfig b/lib/Kconfig index 710deb7..f76656b 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -15,6 +15,12 @@ config CC_OPTIMIZE_LIBS_FOR_SPEED
If unsure, say N.
+config DYNAMIC_CRC_TABLE + bool "Enable Dynamic tables for CRC" + help + Enable this option to calculate entries for CRC tables at runtime. + This can be helpful when reducing the size of the build image + config HAVE_PRIVATE_LIBGCC bool
diff --git a/lib/crc32.c b/lib/crc32.c index 9759212..7f545fd 100644 --- a/lib/crc32.c +++ b/lib/crc32.c @@ -26,7 +26,7 @@
#define tole(x) cpu_to_le32(x)
-#ifdef DYNAMIC_CRC_TABLE +#ifdef CONFIG_DYNAMIC_CRC_TABLE
local int crc_table_empty = 1; local uint32_t crc_table[256]; @@ -157,7 +157,7 @@ tole(0xb40bbe37L), tole(0xc30c8ea1L), tole(0x5a05df1bL), tole(0x2d02ef8dL) */ const uint32_t * ZEXPORT get_crc_table() { -#ifdef DYNAMIC_CRC_TABLE +#ifdef CONFIG_DYNAMIC_CRC_TABLE if (crc_table_empty) make_crc_table(); #endif return (const uint32_t *)crc_table; @@ -181,7 +181,7 @@ uint32_t ZEXPORT crc32_no_comp(uint32_t crc, const Bytef *buf, uInt len) const uint32_t *tab = crc_table; const uint32_t *b =(const uint32_t *)buf; size_t rem_len; -#ifdef DYNAMIC_CRC_TABLE +#ifdef CONFIG_DYNAMIC_CRC_TABLE if (crc_table_empty) make_crc_table(); #endif
On Tue, Feb 06, 2018 at 07:15:58PM +0530, Faiz Abbas wrote:
Add CONFIG prefix to DYNAMIC_CRC_TABLE and implement it in Kconfig.
Signed-off-by: Faiz Abbas faiz_abbas@ti.com
Applied to u-boot/master, thanks!
Add CONFIG_DYNAMIC_CRC_TABLE to am335x_evm_defconfig to reduce the size of the image.
Signed-off-by: Faiz Abbas faiz_abbas@ti.com --- configs/am335x_evm_defconfig | 1 + 1 file changed, 1 insertion(+)
diff --git a/configs/am335x_evm_defconfig b/configs/am335x_evm_defconfig index 8f33c8e..10b66e9 100644 --- a/configs/am335x_evm_defconfig +++ b/configs/am335x_evm_defconfig @@ -56,6 +56,7 @@ CONFIG_USB_GADGET_MANUFACTURER="Texas Instruments" CONFIG_USB_GADGET_VENDOR_NUM=0x0451 CONFIG_USB_GADGET_PRODUCT_NUM=0xd022 CONFIG_USB_ETHER=y +CONFIG_DYNAMIC_CRC_TABLE=y CONFIG_RSA=y CONFIG_LZO=y CONFIG_OF_LIBFDT_OVERLAY=y
On Tue, Feb 06, 2018 at 07:15:59PM +0530, Faiz Abbas wrote:
Add CONFIG_DYNAMIC_CRC_TABLE to am335x_evm_defconfig to reduce the size of the image.
Signed-off-by: Faiz Abbas faiz_abbas@ti.com
Applied to u-boot/master, thanks!
participants (2)
-
Faiz Abbas -
Tom Rini