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From: Heiko Schocher <hs@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 11/26] nand_boot_fsl_nfc.c: make "nfc" a "static const" pointer
Date: Wed, 11 Aug 2010 20:16:04 +0200	[thread overview]
Message-ID: <4C62E8E4.3080904@denx.de> (raw)

With -fPIC enabled, this variable needs an entry in the GOT, which
causes the image size to exceed 2 KiB which is the maximum allowed for
some systems. Making it a "static const" avoids the GOT entry and thus
reduces the image size to < 2 KiB.

Signed-off-by: Heiko Schocher <hs@denx.de>
Acked-by: Scott Wood <scottwood@freescale.com>
---
- changes since v1
  add comment from Scott Wood:
  - make the var nfc static const

- changes since v2:
  - changed commit message

 nand_spl/nand_boot_fsl_nfc.c |    6 +-----
 1 files changed, 1 insertions(+), 5 deletions(-)

diff --git a/nand_spl/nand_boot_fsl_nfc.c b/nand_spl/nand_boot_fsl_nfc.c
index bfae30e..ea3566b 100644
--- a/nand_spl/nand_boot_fsl_nfc.c
+++ b/nand_spl/nand_boot_fsl_nfc.c
@@ -34,7 +34,7 @@
 #include <asm/io.h>
 #include <fsl_nfc.h>

-struct fsl_nfc_regs *nfc;
+static struct fsl_nfc_regs *const nfc = (void *)NFC_BASE_ADDR;

 static void nfc_wait_ready(void)
 {
@@ -228,8 +228,6 @@ static int nand_load(unsigned int from, unsigned int size, unsigned char *buf)
 	unsigned int maxpages = CONFIG_SYS_NAND_SIZE /
 				CONFIG_SYS_NAND_PAGE_SIZE;

-	nfc = (void *)NFC_BASE_ADDR;
-
 	nfc_nand_init();

 	/* Convert to page number */
@@ -274,8 +272,6 @@ void nand_boot(void)
 {
 	__attribute__((noreturn)) void (*uboot)(void);

-	nfc = (void *)NFC_BASE_ADDR;
-
 	/*
 	 * CONFIG_SYS_NAND_U_BOOT_OFFS and CONFIG_SYS_NAND_U_BOOT_SIZE must
 	 * be aligned to full pages
-- 
1.6.2.5

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

                 reply	other threads:[~2010-08-11 18:16 UTC|newest]

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