mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-13 08:27:23 +00:00
25f8bf6eff
Also enable the ohci port on hawkboard. These additions result in an increased u-boot size -- adjust the same accordingly in the board's config. Move the usb header for da8xx platforms under arch-davinci. Signed-off-by: Sughosh Ganu <urwithsughosh@gmail.com>
132 lines
3.7 KiB
C
132 lines
3.7 KiB
C
/*
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* Modified for Hawkboard - Syed Mohammed Khasim <khasim@beagleboard.org>
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*
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* Copyright (C) 2008 Sekhar Nori, Texas Instruments, Inc. <nsekhar@ti.com>
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* Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
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* Copyright (C) 2004 Texas Instruments.
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* Copyright (C) 2012 Sughosh Ganu <urwithsughosh@gmail.com>.
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*
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* ----------------------------------------------------------------------------
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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* ----------------------------------------------------------------------------
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*/
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#include <common.h>
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#include <asm/errno.h>
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#include <asm/arch/hardware.h>
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#include <asm/io.h>
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#include <asm/arch/davinci_misc.h>
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#include <asm/arch/pinmux_defs.h>
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#include <asm/arch/da8xx-usb.h>
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#include <ns16550.h>
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DECLARE_GLOBAL_DATA_PTR;
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const struct pinmux_resource pinmuxes[] = {
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PINMUX_ITEM(emac_pins_mii),
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PINMUX_ITEM(emac_pins_mdio),
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PINMUX_ITEM(emifa_pins_cs3),
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PINMUX_ITEM(emifa_pins_cs4),
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PINMUX_ITEM(emifa_pins_nand),
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PINMUX_ITEM(uart2_pins_txrx),
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PINMUX_ITEM(uart2_pins_rtscts),
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};
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const int pinmuxes_size = ARRAY_SIZE(pinmuxes);
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const struct lpsc_resource lpsc[] = {
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{ DAVINCI_LPSC_AEMIF }, /* NAND, NOR */
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{ DAVINCI_LPSC_SPI1 }, /* Serial Flash */
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{ DAVINCI_LPSC_EMAC }, /* image download */
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{ DAVINCI_LPSC_UART2 }, /* console */
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{ DAVINCI_LPSC_GPIO },
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};
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const int lpsc_size = ARRAY_SIZE(lpsc);
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int board_init(void)
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{
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/* arch number of the board */
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gd->bd->bi_arch_number = MACH_TYPE_OMAPL138_HAWKBOARD;
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/* address of boot parameters */
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gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
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return 0;
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}
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int board_early_init_f(void)
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{
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/*
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* Kick Registers need to be set to allow access to Pin Mux registers
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*/
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writel(DV_SYSCFG_KICK0_UNLOCK, &davinci_syscfg_regs->kick0);
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writel(DV_SYSCFG_KICK1_UNLOCK, &davinci_syscfg_regs->kick1);
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/* set cfgchip3 to select mii */
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writel(readl(&davinci_syscfg_regs->cfgchip3) &
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~(1 << 8), &davinci_syscfg_regs->cfgchip3);
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return 0;
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}
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int misc_init_r(void)
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{
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char buf[32];
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printf("ARM Clock : %s MHz\n",
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strmhz(buf, clk_get(DAVINCI_ARM_CLKID)));
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return 0;
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}
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int usb_phy_on(void)
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{
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u32 timeout;
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u32 cfgchip2;
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cfgchip2 = readl(&davinci_syscfg_regs->cfgchip2);
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cfgchip2 &= ~(CFGCHIP2_RESET | CFGCHIP2_PHYPWRDN | CFGCHIP2_OTGPWRDN |
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CFGCHIP2_OTGMODE | CFGCHIP2_REFFREQ |
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CFGCHIP2_USB1PHYCLKMUX);
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cfgchip2 |= CFGCHIP2_SESENDEN | CFGCHIP2_VBDTCTEN | CFGCHIP2_PHY_PLLON |
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CFGCHIP2_REFFREQ_24MHZ | CFGCHIP2_USB2PHYCLKMUX |
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CFGCHIP2_USB1SUSPENDM;
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writel(cfgchip2, &davinci_syscfg_regs->cfgchip2);
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/* wait until the usb phy pll locks */
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timeout = DA8XX_USB_OTG_TIMEOUT;
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while (timeout--)
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if (readl(&davinci_syscfg_regs->cfgchip2) & CFGCHIP2_PHYCLKGD)
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return 1;
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/* USB phy was not turned on */
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return 0;
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}
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void usb_phy_off(void)
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{
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u32 cfgchip2;
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/*
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* Power down the on-chip PHY.
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*/
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cfgchip2 = readl(&davinci_syscfg_regs->cfgchip2);
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cfgchip2 &= ~(CFGCHIP2_PHY_PLLON | CFGCHIP2_USB1SUSPENDM);
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cfgchip2 |= CFGCHIP2_PHYPWRDN | CFGCHIP2_OTGPWRDN | CFGCHIP2_RESET;
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writel(cfgchip2, &davinci_syscfg_regs->cfgchip2);
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}
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