Probably has to do with structure alignment. Not sure what the packing options/pragmas are for that situation.
On Thu, Dec 9, 2010 at 4:54 AM, Sébastien MENNETRIER <smennetr...@epsi.fr>wrote: > Hello, > > I work on a MCF5235 coldfire and with "uClinux-dist-20101026". I try to use > the eTPU. > I have install the driver and dowload the application to use eTPU on > freescale website. > When I start the programme, there are an error : "Access Error Exception > 12: Error on data read". > > So I modify the file : > "uClinux-dist/linux-2.6.x/arch/m68knommu/platform/523x/config.c". > I have modify "*gpacr" and all "*pacrx" to obtain the access to the > register. > > uint8_t *gpacr = (uint8_t *) (MCF_IPSBAR + MCF523x_GPACR); > uint8_t *pacr1 = (uint8_t *) (MCF_IPSBAR + MCF523x_PACR1); > uint8_t *pacr4 = (uint8_t *) (MCF_IPSBAR + MCF523x_PACR4); > uint8_t *pacr7 = (uint8_t *) (MCF_IPSBAR + MCF523x_PACR7); > uint8_t *pacr8 = (uint8_t *) (MCF_IPSBAR + MCF523x_PACR8); > > //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! > // *gpacr = 0x04; > // *pacr1 = 0x40; /* EIM required for Chip Select access */ > // *pacr4 = 0x40; /* I2C */ > // *pacr7 = 0x44; /* INTC0 & 1 handy for debug */ > // *pacr8 = 0x40; /* FEC MAC */ > //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! > *gpacr = 0x0C; > *pacr1 = 0x44; /* EIM required for Chip Select access */ > *pacr4 = 0x44; /* I2C */ > *pacr7 = 0x44; /* INTC0 & 1 handy for debug */ > *pacr8 = 0x44; /* FEC MAC */ > > > But this change did not solve the problem. > > Can you help me please? > > > MENNETRIER Sébastien > FRANCE > > _______________________________________________ > uClinux-dev mailing list > uClinux-dev@uclinux.org > http://mailman.uclinux.org/mailman/listinfo/uclinux-dev > This message was resent by uclinux-dev@uclinux.org > To unsubscribe see: > http://mailman.uclinux.org/mailman/options/uclinux-dev >
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