mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
67a4df9daf
With both SPL and U-Boot now supporting DM, we can start removing legacy code. This patch removes the legacy MMC initalization and legacy I2C initialization since both are now available via DM and device tree. Signed-off-by: Adam Ford <aford173@gmail.com>
158 lines
3.3 KiB
C
158 lines
3.3 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 "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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#if defined(CONFIG_SPL_BUILD)
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#if defined(CONFIG_SPL_OS_BOOT)
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int spl_start_uboot(void)
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{
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/* break into full u-boot on 'c' */
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return serial_tstc() && serial_getc() == 'c';
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}
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#endif
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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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u32 reset;
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omap_die_id_display();
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am3517_evm_musb_init();
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/* ensure that the Ethernet 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_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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