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/*
* board.c
*
* Common board functions for AM33XX based boards
*
* Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <errno.h>
#include <spl.h>
#include <asm/arch/cpu.h>
#include <asm/arch/hardware.h>
#include <asm/arch/omap.h>
#include <asm/arch/ddr_defs.h>
#include <asm/arch/clock.h>
#include <asm/arch/gpio.h>
#include <asm/arch/mem.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/arch/sys_proto.h>
#include <asm/io.h>
#include <asm/emif.h>
#include <asm/gpio.h>
#include <i2c.h>
#include <miiphy.h>
#include <cpsw.h>
#include <asm/errno.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include <linux/usb/musb.h>
#include <asm/omap_musb.h>
DECLARE_GLOBAL_DATA_PTR;
static const struct gpio_bank gpio_bank_am33xx[4] = {
{ (void *)AM33XX_GPIO0_BASE, METHOD_GPIO_24XX },
{ (void *)AM33XX_GPIO1_BASE, METHOD_GPIO_24XX },
{ (void *)AM33XX_GPIO2_BASE, METHOD_GPIO_24XX },
{ (void *)AM33XX_GPIO3_BASE, METHOD_GPIO_24XX },
};
const struct gpio_bank *const omap_gpio_bank = gpio_bank_am33xx;
#if defined(CONFIG_OMAP_HSMMC) && !defined(CONFIG_SPL_BUILD)
int cpu_mmc_init(bd_t *bis)
{
int ret;
ret = omap_mmc_init(0, 0, 0, -1, -1);
if (ret)
return ret;
return omap_mmc_init(1, 0, 0, -1, -1);
}
#endif
void setup_clocks_for_console(void)
{
/* Not yet implemented */
return;
}
/* AM33XX has two MUSB controllers which can be host or gadget */
#if (defined(CONFIG_MUSB_GADGET) || defined(CONFIG_MUSB_HOST)) && \
(defined(CONFIG_AM335X_USB0) || defined(CONFIG_AM335X_USB1))
static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
/* USB 2.0 PHY Control */
#define CM_PHY_PWRDN (1 << 0)
#define CM_PHY_OTG_PWRDN (1 << 1)
#define OTGVDET_EN (1 << 19)
#define OTGSESSENDEN (1 << 20)
static void am33xx_usb_set_phy_power(u8 on, u32 *reg_addr)
{
if (on) {
clrsetbits_le32(reg_addr, CM_PHY_PWRDN | CM_PHY_OTG_PWRDN,
OTGVDET_EN | OTGSESSENDEN);
} else {
clrsetbits_le32(reg_addr, 0, CM_PHY_PWRDN | CM_PHY_OTG_PWRDN);
}
}
static struct musb_hdrc_config musb_config = {
.multipoint = 1,
.dyn_fifo = 1,
.num_eps = 16,
.ram_bits = 12,
};
#ifdef CONFIG_AM335X_USB0
static void am33xx_otg0_set_phy_power(u8 on)
{
am33xx_usb_set_phy_power(on, &cdev->usb_ctrl0);
}
struct omap_musb_board_data otg0_board_data = {
.set_phy_power = am33xx_otg0_set_phy_power,
};
static struct musb_hdrc_platform_data otg0_plat = {
.mode = CONFIG_AM335X_USB0_MODE,
.config = &musb_config,
.power = 50,
.platform_ops = &musb_dsps_ops,
.board_data = &otg0_board_data,
};
#endif
#ifdef CONFIG_AM335X_USB1
static void am33xx_otg1_set_phy_power(u8 on)
{
am33xx_usb_set_phy_power(on, &cdev->usb_ctrl1);
}
struct omap_musb_board_data otg1_board_data = {
.set_phy_power = am33xx_otg1_set_phy_power,
};
static struct musb_hdrc_platform_data otg1_plat = {
.mode = CONFIG_AM335X_USB1_MODE,
.config = &musb_config,
.power = 50,
.platform_ops = &musb_dsps_ops,
.board_data = &otg1_board_data,
};
#endif
#endif
int arch_misc_init(void)
{
#ifdef CONFIG_AM335X_USB0
musb_register(&otg0_plat, &otg0_board_data,
(void *)USB0_OTG_BASE);
#endif
#ifdef CONFIG_AM335X_USB1
musb_register(&otg1_plat, &otg1_board_data,
(void *)USB1_OTG_BASE);
#endif
return 0;
}
#ifdef CONFIG_SPL_BUILD
void rtc32k_enable(void)
{
struct rtc_regs *rtc = (struct rtc_regs *)RTC_BASE;
/*
* Unlock the RTC's registers. For more details please see the
* RTC_SS section of the TRM. In order to unlock we need to
* write these specific values (keys) in this order.
*/
writel(0x83e70b13, &rtc->kick0r);
writel(0x95a4f1e0, &rtc->kick1r);
/* Enable the RTC 32K OSC by setting bits 3 and 6. */
writel((1 << 3) | (1 << 6), &rtc->osc);
}
#define UART_RESET (0x1 << 1)
#define UART_CLK_RUNNING_MASK 0x1
#define UART_SMART_IDLE_EN (0x1 << 0x3)
void uart_soft_reset(void)
{
struct uart_sys *uart_base = (struct uart_sys *)DEFAULT_UART_BASE;
u32 regval;
regval = readl(&uart_base->uartsyscfg);
regval |= UART_RESET;
writel(regval, &uart_base->uartsyscfg);
while ((readl(&uart_base->uartsyssts) &
UART_CLK_RUNNING_MASK) != UART_CLK_RUNNING_MASK)
;
/* Disable smart idle */
regval = readl(&uart_base->uartsyscfg);
regval |= UART_SMART_IDLE_EN;
writel(regval, &uart_base->uartsyscfg);
}
#endif
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