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PPC440EPx: Optionally enable second I2C bus

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The option CONFIG_I2C_MULTI_BUS does not have any effect on Sequoia, the
PPC440EPx reference platform, because IIC1 is never enabled. Add Sequoia board
code to turn on IIC1 if CONFIG_I2C_MULTI_BUS is selected.

Signed-off-by: Mike Nuss <mike@terascala.com>
Cc: Stefan Roese <sr@denx.de>
This commit is contained in:
Mike Nuss 2008-02-06 11:10:11 -05:00 committed by Stefan Roese
parent ef5b4f221c
commit b738654d3c
1 changed files with 4 additions and 1 deletions
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5
board/amcc/sequoia/sequoia.c
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@ -86,10 +86,13 @@ int board_early_init_f(void)
/* enable USB device */
out_8((u8 *) CFG_BCSR_BASE + 0x09, 0x20);
/* select Ethernet pins */
/* select Ethernet (and optionally IIC1) pins */
mfsdr(SDR0_PFC1, sdr0_pfc1);
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SELECT_MASK) |
SDR0_PFC1_SELECT_CONFIG_4;
#ifdef CONFIG_I2C_MULTI_BUS
sdr0_pfc1 |= ((sdr0_pfc1 & ~SDR0_PFC1_SIS_MASK) | SDR0_PFC1_SIS_IIC1_SEL);
#endif
mfsdr(SDR0_PFC2, sdr0_pfc2);
sdr0_pfc2 = (sdr0_pfc2 & ~SDR0_PFC2_SELECT_MASK) |
SDR0_PFC2_SELECT_CONFIG_4;