mirror of
https://github.com/AsahiLinux/u-boot
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
199 lines
4.1 KiB
C
199 lines
4.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* am3517evm.c - board file for TI's AM3517 family of devices.
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*
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* Author: Vaibhav Hiremath <hvaibhav@ti.com>
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*
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* Based on ti/evm/evm.c
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*
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* Copyright (C) 2010
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* Texas Instruments Incorporated - http://www.ti.com/
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*/
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#include <common.h>
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#include <dm.h>
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#include <ns16550.h>
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#include <asm/io.h>
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#include <asm/omap_musb.h>
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#include <asm/arch/am35x_def.h>
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#include <asm/arch/mem.h>
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#include <asm/arch/mux.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/arch/mmc_host_def.h>
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#include <asm/arch/musb.h>
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#include <asm/mach-types.h>
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#include <linux/errno.h>
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#include <asm/gpio.h>
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#include <linux/usb/ch9.h>
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#include <linux/usb/gadget.h>
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#include <linux/usb/musb.h>
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#include <i2c.h>
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#include <netdev.h>
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#include "am3517evm.h"
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DECLARE_GLOBAL_DATA_PTR;
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#define AM3517_IP_SW_RESET 0x48002598
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#define CPGMACSS_SW_RST (1 << 1)
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#define PHY_GPIO 30
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/* This is only needed until SPL gets OF support */
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#ifdef CONFIG_SPL_BUILD
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static const struct ns16550_platdata am3517_serial = {
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.base = OMAP34XX_UART3,
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.reg_shift = 2,
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.clock = V_NS16550_CLK,
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.fcr = UART_FCR_DEFVAL,
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};
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U_BOOT_DEVICE(am3517_uart) = {
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"ns16550_serial",
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&am3517_serial
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};
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#endif
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/*
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* Routine: board_init
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* Description: Early hardware init.
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*/
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int board_init(void)
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{
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gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
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/* board id for Linux */
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gd->bd->bi_arch_number = MACH_TYPE_OMAP3517EVM;
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/* boot param addr */
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gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
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return 0;
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}
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#ifdef CONFIG_USB_MUSB_AM35X
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static struct musb_hdrc_config musb_config = {
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.multipoint = 1,
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.dyn_fifo = 1,
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.num_eps = 16,
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.ram_bits = 12,
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};
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static struct omap_musb_board_data musb_board_data = {
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.set_phy_power = am35x_musb_phy_power,
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.clear_irq = am35x_musb_clear_irq,
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.reset = am35x_musb_reset,
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};
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static struct musb_hdrc_platform_data musb_plat = {
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#if defined(CONFIG_USB_MUSB_HOST)
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.mode = MUSB_HOST,
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#elif defined(CONFIG_USB_MUSB_GADGET)
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.mode = MUSB_PERIPHERAL,
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#else
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#error "Please define either CONFIG_USB_MUSB_HOST or CONFIG_USB_MUSB_GADGET"
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#endif
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.config = &musb_config,
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.power = 250,
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.platform_ops = &am35x_ops,
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.board_data = &musb_board_data,
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};
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static void am3517_evm_musb_init(void)
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{
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/*
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* Set up USB clock/mode in the DEVCONF2 register.
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* USB2.0 PHY reference clock is 13 MHz
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*/
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clrsetbits_le32(&am35x_scm_general_regs->devconf2,
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CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE,
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CONF2_REFFREQ_13MHZ | CONF2_SESENDEN |
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CONF2_VBDTCTEN | CONF2_DATPOL);
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musb_register(&musb_plat, &musb_board_data,
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(void *)AM35XX_IPSS_USBOTGSS_BASE);
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}
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#else
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#define am3517_evm_musb_init() do {} while (0)
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#endif
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/*
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* Routine: misc_init_r
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* Description: Init i2c, ethernet, etc... (done here so udelay works)
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*/
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int misc_init_r(void)
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{
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volatile unsigned int ctr;
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u32 reset;
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#ifdef CONFIG_SYS_I2C_OMAP24XX
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i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
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#endif
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omap_die_id_display();
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am3517_evm_musb_init();
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if (gpio_request(PHY_GPIO, "gpio_30") == 0) {
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/* activate PHY reset */
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gpio_direction_output(PHY_GPIO, 0);
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gpio_set_value(PHY_GPIO, 0);
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ctr = 0;
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do {
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udelay(1000);
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ctr++;
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} while (ctr < 300);
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/* deactivate PHY reset */
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gpio_set_value(PHY_GPIO, 1);
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/* allow the PHY to stabilize and settle down */
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ctr = 0;
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do {
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udelay(1000);
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ctr++;
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} while (ctr < 300);
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/* ensure that the module is out of reset */
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reset = readl(AM3517_IP_SW_RESET);
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reset &= (~CPGMACSS_SW_RST);
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writel(reset, AM3517_IP_SW_RESET);
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/* Free requested GPIO */
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gpio_free(PHY_GPIO);
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}
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return 0;
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}
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/*
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* Routine: set_muxconf_regs
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* Description: Setting up the configuration Mux registers specific to the
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* hardware. Many pins need to be moved from protect to primary
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* mode.
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*/
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void set_muxconf_regs(void)
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{
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MUX_AM3517EVM();
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}
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#if defined(CONFIG_MMC)
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int board_mmc_init(bd_t *bis)
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{
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return omap_mmc_init(0, 0, 0, -1, -1);
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}
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#endif
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#if defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET)
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int board_eth_init(bd_t *bis)
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{
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int rv, n = 0;
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rv = cpu_eth_init(bis);
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if (rv > 0)
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n += rv;
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rv = usb_eth_initialize(bis);
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if (rv > 0)
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n += rv;
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return n;
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}
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#endif
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