+// SPDX-License-Identifier: GPL-2.0+
/*
* am3517evm.c - board file for TI's AM3517 family of devices.
*
*
* Copyright (C) 2010
* Texas Instruments Incorporated - http://www.ti.com/
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
+#include <dm.h>
+#include <ns16550.h>
#include <asm/io.h>
#include <asm/omap_musb.h>
#include <asm/arch/am35x_def.h>
#define AM3517_IP_SW_RESET 0x48002598
#define CPGMACSS_SW_RST (1 << 1)
+#define PHY_GPIO 30
+
/*
* Routine: board_init
am3517_evm_musb_init();
- /* activate PHY reset */
- gpio_direction_output(30, 0);
- gpio_set_value(30, 0);
-
- ctr = 0;
- do {
- udelay(1000);
- ctr++;
- } while (ctr < 300);
-
- /* deactivate PHY reset */
- gpio_set_value(30, 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);
+ 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);
+ }
return 0;
}