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omap3evm: eth: split function setup_net_chip 

In current implementation, the function sets up the ethernet
chip and resets it. The steps to reset depend upon the board
revision.

The patch moves the reset actions to new function reset_net_chip().

Signed-off-by: Sanjeev Premi <premi@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
This commit is contained in:
Sanjeev Premi 2011-07-18 09:20:15 -04:00 committed by U-Boot
parent 80bb756dbe
commit 6921b314a8
2 changed files with 12 additions and 1 deletions
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12
board/ti/evm/evm.c
View File

@ -130,6 +130,9 @@ int misc_init_r(void)
#endif
omap3_evm_get_revision();
#if defined(CONFIG_CMD_NET)
reset_net_chip();
#endif
dieid_num_r();
return 0;
@ -153,7 +156,6 @@ void set_muxconf_regs(void)
*/
static void setup_net_chip(void)
{
struct gpio *gpio3_base = (struct gpio *)OMAP34XX_GPIO3_BASE;
struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
/* Configure GPMC registers */
@ -172,6 +174,14 @@ static void setup_net_chip(void)
/* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
&ctrl_base->gpmc_nadv_ale);
}
/**
* Reset the ethernet chip.
*/
static void reset_net_chip(void)
{
struct gpio *gpio3_base = (struct gpio *)OMAP34XX_GPIO3_BASE;
/* Make GPIO 64 as output pin */
writel(readl(&gpio3_base->oe) & ~(GPIO0), &gpio3_base->oe);

1
board/ti/evm/evm.h
View File

@ -49,6 +49,7 @@ u32 get_omap3_evm_rev(void);
#if defined(CONFIG_CMD_NET)
static void setup_net_chip(void);
static void reset_net_chip(void);
#endif
/*