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ARM: am3517-evm: Remove manual ethernet reset code

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The reset line going to the ethernet controller is controlled
by a global reset controlling multiple peripherals.  There
is no need to manually invoke the reset.

Signed-off-by: Adam Ford <aford173@gmail.com>
This commit is contained in:
Adam Ford 2019-06-23 00:42:14 -05:00 committed by Tom Rini
parent 2448e42d73
commit 9de4695f75
1 changed files with 4 additions and 30 deletions
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34
board/logicpd/am3517evm/am3517evm.c
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@ -113,7 +113,6 @@ static void am3517_evm_musb_init(void)
*/
int misc_init_r(void)
{
volatile unsigned int ctr;
u32 reset;
#if !defined(CONFIG_DM_I2C)
@ -125,35 +124,10 @@ int misc_init_r(void)
am3517_evm_musb_init();
if (gpio_request(PHY_GPIO, "gpio_30") == 0) {
/* activate PHY reset */
gpio_direction_output(PHY_GPIO, 0);
gpio_set_value(PHY_GPIO, 0);
ctr = 0;
do {
udelay(1000);
ctr++;
} while (ctr < 300);
/* deactivate PHY reset */
gpio_set_value(PHY_GPIO, 1);
/* allow the PHY to stabilize and settle down */
ctr = 0;
do {
udelay(1000);
ctr++;
} while (ctr < 300);
/* ensure that the module is out of reset */
reset = readl(AM3517_IP_SW_RESET);
reset &= (~CPGMACSS_SW_RST);
writel(reset, AM3517_IP_SW_RESET);
/* Free requested GPIO */
gpio_free(PHY_GPIO);
}
/* ensure that the Ethernet module is out of reset */
reset = readl(AM3517_IP_SW_RESET);
reset &= (~CPGMACSS_SW_RST);
writel(reset, AM3517_IP_SW_RESET);
return 0;
}