u-boot/board/ti/omap5_uevm/evm.c
Masahiro Yamada 63a7578e4e arch, board: squash lines for immediate return
Remove unneeded variables and assignments.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Minkyu Kang <mk7.kang@samsung.com>
Reviewed-by: Angelo Dureghello <angelo@sysam.it>
2016-09-23 17:53:53 -04:00

280 lines
6.1 KiB
C

/*
* (C) Copyright 2010
* Texas Instruments Incorporated, <www.ti.com>
* Aneesh V <aneesh@ti.com>
* Steve Sakoman <steve@sakoman.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <palmas.h>
#include <asm/arch/omap.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mmc_host_def.h>
#include <tca642x.h>
#include <usb.h>
#include <linux/usb/gadget.h>
#include <dwc3-uboot.h>
#include <dwc3-omap-uboot.h>
#include <ti-usb-phy-uboot.h>
#include "mux_data.h"
#if defined(CONFIG_USB_EHCI) || defined(CONFIG_USB_XHCI_OMAP)
#include <sata.h>
#include <usb.h>
#include <asm/gpio.h>
#include <asm/arch/clock.h>
#include <asm/arch/ehci.h>
#include <asm/ehci-omap.h>
#include <asm/arch/sata.h>
#define DIE_ID_REG_BASE (OMAP54XX_L4_CORE_BASE + 0x2000)
#define DIE_ID_REG_OFFSET 0x200
#endif
DECLARE_GLOBAL_DATA_PTR;
const struct omap_sysinfo sysinfo = {
"Board: OMAP5432 uEVM\n"
};
/**
* @brief tca642x_init - uEVM default values for the GPIO expander
* input reg, output reg, polarity reg, configuration reg
*/
struct tca642x_bank_info tca642x_init[] = {
{ .input_reg = 0x00,
.output_reg = 0x04,
.polarity_reg = 0x00,
.configuration_reg = 0x80 },
{ .input_reg = 0x00,
.output_reg = 0x00,
.polarity_reg = 0x00,
.configuration_reg = 0xff },
{ .input_reg = 0x00,
.output_reg = 0x00,
.polarity_reg = 0x00,
.configuration_reg = 0x40 },
};
#ifdef CONFIG_USB_DWC3
static struct dwc3_device usb_otg_ss = {
.maximum_speed = USB_SPEED_SUPER,
.base = OMAP5XX_USB_OTG_SS_BASE,
.tx_fifo_resize = false,
.index = 0,
};
static struct dwc3_omap_device usb_otg_ss_glue = {
.base = (void *)OMAP5XX_USB_OTG_SS_GLUE_BASE,
.utmi_mode = DWC3_OMAP_UTMI_MODE_SW,
.index = 0,
};
static struct ti_usb_phy_device usb_phy_device = {
.pll_ctrl_base = (void *)OMAP5XX_USB3_PHY_PLL_CTRL,
.usb2_phy_power = (void *)OMAP5XX_USB2_PHY_POWER,
.usb3_phy_power = (void *)OMAP5XX_USB3_PHY_POWER,
.index = 0,
};
int board_usb_init(int index, enum usb_init_type init)
{
if (index) {
printf("Invalid Controller Index\n");
return -EINVAL;
}
if (init == USB_INIT_DEVICE) {
usb_otg_ss.dr_mode = USB_DR_MODE_PERIPHERAL;
usb_otg_ss_glue.vbus_id_status = OMAP_DWC3_VBUS_VALID;
} else {
usb_otg_ss.dr_mode = USB_DR_MODE_HOST;
usb_otg_ss_glue.vbus_id_status = OMAP_DWC3_ID_GROUND;
}
enable_usb_clocks(index);
ti_usb_phy_uboot_init(&usb_phy_device);
dwc3_omap_uboot_init(&usb_otg_ss_glue);
dwc3_uboot_init(&usb_otg_ss);
return 0;
}
int board_usb_cleanup(int index, enum usb_init_type init)
{
if (index) {
printf("Invalid Controller Index\n");
return -EINVAL;
}
ti_usb_phy_uboot_exit(index);
dwc3_uboot_exit(index);
dwc3_omap_uboot_exit(index);
disable_usb_clocks(index);
return 0;
}
int usb_gadget_handle_interrupts(int index)
{
u32 status;
status = dwc3_omap_uboot_interrupt_status(index);
if (status)
dwc3_uboot_handle_interrupt(index);
return 0;
}
#endif
/**
* @brief board_init
*
* @return 0
*/
int board_init(void)
{
gpmc_init();
gd->bd->bi_arch_number = MACH_TYPE_OMAP5_SEVM;
gd->bd->bi_boot_params = (0x80000000 + 0x100); /* boot param addr */
tca642x_set_inital_state(CONFIG_SYS_I2C_TCA642X_ADDR, tca642x_init);
return 0;
}
int board_eth_init(bd_t *bis)
{
return 0;
}
#if defined(CONFIG_USB_EHCI) || defined(CONFIG_USB_XHCI_OMAP)
static void enable_host_clocks(void)
{
int auxclk;
int hs_clk_ctrl_val = (OPTFCLKEN_HSIC60M_P3_CLK |
OPTFCLKEN_HSIC480M_P3_CLK |
OPTFCLKEN_HSIC60M_P2_CLK |
OPTFCLKEN_HSIC480M_P2_CLK |
OPTFCLKEN_UTMI_P3_CLK | OPTFCLKEN_UTMI_P2_CLK);
/* Enable port 2 and 3 clocks*/
setbits_le32((*prcm)->cm_l3init_hsusbhost_clkctrl, hs_clk_ctrl_val);
/* Enable port 2 and 3 usb host ports tll clocks*/
setbits_le32((*prcm)->cm_l3init_hsusbtll_clkctrl,
(OPTFCLKEN_USB_CH1_CLK_ENABLE | OPTFCLKEN_USB_CH2_CLK_ENABLE));
#ifdef CONFIG_USB_XHCI_OMAP
/* Enable the USB OTG Super speed clocks */
setbits_le32((*prcm)->cm_l3init_usb_otg_ss_clkctrl,
(OPTFCLKEN_REFCLK960M | OTG_SS_CLKCTRL_MODULEMODE_HW));
#endif
auxclk = readl((*prcm)->scrm_auxclk1);
/* Request auxilary clock */
auxclk |= AUXCLK_ENABLE_MASK;
writel(auxclk, (*prcm)->scrm_auxclk1);
}
#endif
/**
* @brief misc_init_r - Configure EVM board specific configurations
* such as power configurations, ethernet initialization as phase2 of
* boot sequence
*
* @return 0
*/
int misc_init_r(void)
{
#ifdef CONFIG_PALMAS_POWER
palmas_init_settings();
#endif
omap_die_id_usbethaddr();
return 0;
}
void set_muxconf_regs(void)
{
do_set_mux((*ctrl)->control_padconf_core_base,
core_padconf_array_essential,
sizeof(core_padconf_array_essential) /
sizeof(struct pad_conf_entry));
do_set_mux((*ctrl)->control_padconf_wkup_base,
wkup_padconf_array_essential,
sizeof(wkup_padconf_array_essential) /
sizeof(struct pad_conf_entry));
}
#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_GENERIC_MMC)
int board_mmc_init(bd_t *bis)
{
omap_mmc_init(0, 0, 0, -1, -1);
omap_mmc_init(1, 0, 0, -1, -1);
return 0;
}
#endif
#ifdef CONFIG_USB_EHCI
static struct omap_usbhs_board_data usbhs_bdata = {
.port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
.port_mode[1] = OMAP_EHCI_PORT_MODE_HSIC,
.port_mode[2] = OMAP_EHCI_PORT_MODE_HSIC,
};
int ehci_hcd_init(int index, enum usb_init_type init,
struct ehci_hccr **hccr, struct ehci_hcor **hcor)
{
int ret;
enable_host_clocks();
ret = omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
if (ret < 0) {
puts("Failed to initialize ehci\n");
return ret;
}
return 0;
}
int ehci_hcd_stop(void)
{
return omap_ehci_hcd_stop();
}
void usb_hub_reset_devices(int port)
{
/* The LAN9730 needs to be reset after the port power has been set. */
if (port == 3) {
gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 0);
udelay(10);
gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 1);
}
}
#endif
#ifdef CONFIG_USB_XHCI_OMAP
/**
* @brief board_usb_init - Configure EVM board specific configurations
* for the LDO's and clocks for the USB blocks.
*
* @return 0
*/
int board_usb_init(int index, enum usb_init_type init)
{
int ret;
#ifdef CONFIG_PALMAS_USB_SS_PWR
ret = palmas_enable_ss_ldo();
#endif
enable_host_clocks();
return 0;
}
#endif