diff options
| author | Scott Wood <scottwood@freescale.com> | 2013-05-17 20:01:54 -0500 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2013-06-11 22:01:45 +0200 |
| commit | a166fbca20e40937bf37cc18c389f68e995c1821 (patch) | |
| tree | ca90c9999014f7172aefabf257c9c0d2533aecf4 /arch/powerpc/include | |
| parent | e1208c2fe5e07f9a248cfbf9bbb212aa34ad2806 (diff) | |
| download | u-boot-imx-a166fbca20e40937bf37cc18c389f68e995c1821.zip u-boot-imx-a166fbca20e40937bf37cc18c389f68e995c1821.tar.gz u-boot-imx-a166fbca20e40937bf37cc18c389f68e995c1821.tar.bz2 | |
powerpc: fix 8xx and 82xx type-punning warnings with GCC 4.7
C99's strict aliasing rules are insane to use in low-level code such as a
bootloader, but as Wolfgang has rejected -fno-strict-aliasing in the
past, add a union so that 16-bit accesses can be performed.
Compile-tested only.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Acked-by: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/8xx_immap.h | 7 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/immap_8260.h | 19 |
2 files changed, 18 insertions, 8 deletions
diff --git a/arch/powerpc/include/asm/8xx_immap.h b/arch/powerpc/include/asm/8xx_immap.h index 40679cb..01129ed 100644 --- a/arch/powerpc/include/asm/8xx_immap.h +++ b/arch/powerpc/include/asm/8xx_immap.h @@ -485,7 +485,12 @@ typedef struct comm_proc { * Some processors don't have all of it populated. */ u_char cp_dpmem[0x1C00]; /* BD / Data / ucode */ - u_char cp_dparam[0x400]; /* Parameter RAM */ + + /* Parameter RAM */ + union { + u_char cp_dparam[0x400]; + u16 cp_dparam16[0x200]; + }; } cpm8xx_t; /* Internal memory map. diff --git a/arch/powerpc/include/asm/immap_8260.h b/arch/powerpc/include/asm/immap_8260.h index 4974ae5..c7021a7 100644 --- a/arch/powerpc/include/asm/immap_8260.h +++ b/arch/powerpc/include/asm/immap_8260.h @@ -526,13 +526,18 @@ typedef struct immap { /* Some references are into the unique and known dpram spaces, * others are from the generic base. */ -#define im_dprambase im_dpram1 - u_char im_dpram1[16*1024]; - char res1[16*1024]; - u_char im_dpram2[4*1024]; - char res2[8*1024]; - u_char im_dpram3[4*1024]; - char res3[16*1024]; + union { + struct { + u_char im_dpram1[16 * 1024]; + char res1[16 * 1024]; + u_char im_dpram2[4 * 1024]; + char res2[8 * 1024]; + u_char im_dpram3[4 * 1024]; + char res3[16 * 1024]; + }; + u8 im_dprambase[64 * 1024]; + u16 im_dprambase16[32 * 1024]; + }; sysconf8260_t im_siu_conf; /* SIU Configuration */ memctl8260_t im_memctl; /* Memory Controller */ |