mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-25 04:19:43 +09:00
d5abcf94c7
To keep a consistent MMC device mapping in SPL and in u-boot, let's register the MMC controllers the same way in u-boot and in the SPL. In terms of boot time, it doesn't hurt to register more controllers than needed because the MMC device is initialized only prior being accessed for the first time. Having the same device mapping in SPL and u-boot allows us to use the environment in SPL whatever the MMC boot device. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
178 lines
3.7 KiB
C
178 lines
3.7 KiB
C
/*
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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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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.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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/*
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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_OMAP34XX
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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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/* activate PHY reset */
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gpio_direction_output(30, 0);
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gpio_set_value(30, 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(30, 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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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_GENERIC_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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