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beagleboard: Remove side effects of i2c2 pullup resisters initialization code 

Fix typo of commit d4e53f063d.

i2c2 pullup resisters are controlled by bit 0 of CONTROL_PROG_IO1.
It's value after reset is 0x00100001.

In order to clear bit 0, original code write 0xfffffffe to
CONTROL_PROG_IO1 and toggle almost all default values.

Original code affect following:
* disable i2c1 pullup resisters
* increase far end load setting for many modules
* setup invalid SC/LB combination

Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
CC: Tom Rini <trini@ti.com>
CC: Steve Kipisz <s-kipisz2@ti.com>
utp
Alexander Kochetkov 2014-09-29 21:46:48 +04:00 committed by Tom Rini
parent af55e35d33
commit 04e2a13336
1 changed files with 4 additions and 1 deletions
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5
board/ti/beagle/beagle.c
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@ -317,9 +317,12 @@ int misc_init_r(void)
struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE;
struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE;
bool generate_fake_mac = false;
u32 value;
/* Enable i2c2 pullup resisters */
writel(~(PRG_I2C2_PULLUPRESX), &prog_io_base->io1);
value = readl(&prog_io_base->io1);
value &= ~(PRG_I2C2_PULLUPRESX);
writel(value, &prog_io_base->io1);
switch (get_board_revision()) {
case REVISION_AXBX: