* Copyright (C) 2010
* Texas Instruments Incorporated - http://www.ti.com/
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
+#include <asm/omap_musb.h>
+#include <asm/arch/am35x_def.h>
#include <asm/arch/mem.h>
#include <asm/arch/mux.h>
#include <asm/arch/sys_proto.h>
+#include <asm/arch/mmc_host_def.h>
+#include <asm/arch/musb.h>
#include <asm/mach-types.h>
+#include <asm/errno.h>
+#include <asm/gpio.h>
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+#include <linux/usb/musb.h>
#include <i2c.h>
+#include <netdev.h>
#include "am3517evm.h"
DECLARE_GLOBAL_DATA_PTR;
+#define AM3517_IP_SW_RESET 0x48002598
+#define CPGMACSS_SW_RST (1 << 1)
+
/*
* Routine: board_init
* Description: Early hardware init.
return 0;
}
+#ifdef CONFIG_USB_MUSB_AM35X
+static struct musb_hdrc_config musb_config = {
+ .multipoint = 1,
+ .dyn_fifo = 1,
+ .num_eps = 16,
+ .ram_bits = 12,
+};
+
+static struct omap_musb_board_data musb_board_data = {
+ .set_phy_power = am35x_musb_phy_power,
+ .clear_irq = am35x_musb_clear_irq,
+ .reset = am35x_musb_reset,
+};
+
+static struct musb_hdrc_platform_data musb_plat = {
+#if defined(CONFIG_MUSB_HOST)
+ .mode = MUSB_HOST,
+#elif defined(CONFIG_MUSB_GADGET)
+ .mode = MUSB_PERIPHERAL,
+#else
+#error "Please define either CONFIG_MUSB_HOST or CONFIG_MUSB_GADGET"
+#endif
+ .config = &musb_config,
+ .power = 250,
+ .platform_ops = &am35x_ops,
+ .board_data = &musb_board_data,
+};
+
+static void am3517_evm_musb_init(void)
+{
+ /*
+ * Set up USB clock/mode in the DEVCONF2 register.
+ * USB2.0 PHY reference clock is 13 MHz
+ */
+ clrsetbits_le32(&am35x_scm_general_regs->devconf2,
+ CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE,
+ CONF2_REFFREQ_13MHZ | CONF2_SESENDEN |
+ CONF2_VBDTCTEN | CONF2_DATPOL);
+
+ musb_register(&musb_plat, &musb_board_data,
+ (void *)AM35XX_IPSS_USBOTGSS_BASE);
+}
+#else
+#define am3517_evm_musb_init() do {} while (0)
+#endif
+
/*
* Routine: misc_init_r
* Description: Init i2c, ethernet, etc... (done here so udelay works)
*/
int misc_init_r(void)
{
-#ifdef CONFIG_DRIVER_OMAP34XX_I2C
- i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+ volatile unsigned int ctr;
+ u32 reset;
+
+#ifdef CONFIG_SYS_I2C_OMAP34XX
+ i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
#endif
dieid_num_r();
+ 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);
+
return 0;
}
{
MUX_AM3517EVM();
}
+
+#if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
+int board_mmc_init(bd_t *bis)
+{
+ return omap_mmc_init(0, 0, 0, -1, -1);
+}
+#endif
+
+#if defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET)
+int board_eth_init(bd_t *bis)
+{
+ int rv, n = 0;
+
+ rv = cpu_eth_init(bis);
+ if (rv > 0)
+ n += rv;
+
+ rv = usb_eth_initialize(bis);
+ if (rv > 0)
+ n += rv;
+
+ return n;
+}
+#endif