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ppc4xx: Fix building for PLU405 boards

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The init_coupler() function from board/esd/plu405/plu405.c
got lost somehow! This patch readds it.

Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu>
Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Matthias Fuchs 2010-02-01 13:53:59 +01:00 committed by Stefan Roese
parent 59c1db6dab
commit 976c21ad8e
1 changed files with 28 additions and 0 deletions
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28
board/esd/plu405/plu405.c
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@ -46,6 +46,34 @@ const unsigned char fpgadata[] =
*/
#include "../common/fpga.c"
/*
* generate a short spike on the CAN tx line
* to bring the couplers in sync
*/
void init_coupler(u32 addr)
{
struct sja1000_basic_s *ctrl = (struct sja1000_basic_s *)addr;
/* reset */
out_8(&ctrl->cr, CR_RR);
/* dominant */
out_8(&ctrl->btr0, 0x00); /* btr setup is required */
out_8(&ctrl->btr1, 0x14); /* we use 1Mbit/s */
out_8(&ctrl->oc, OC_TP1 | OC_TN1 | OC_POL1 |
OC_TP0 | OC_TN0 | OC_POL0 | OC_MODE1);
out_8(&ctrl->cr, 0x00);
/* delay */
in_8(&ctrl->cr);
in_8(&ctrl->cr);
in_8(&ctrl->cr);
in_8(&ctrl->cr);
/* reset */
out_8(&ctrl->cr, CR_RR);
}
int board_early_init_f(void)
{
/*