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https://github.com/brain-hackers/u-boot-brain
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d26074012b
This patch is a port of the work by Sudhakar Rajeshekhara in commit ab3effbcad8851cc65dc5241a01c064d2030a3b2 of git://arago-project.org/git/people/sandeep/u-boot-davinci.git. The da850 UI board has on it an RMII PHY which can be used if the MDC line to the MII PHY on the baseboard is disabled and the RMII PHY is enabled by configuring the values of some GPIO pins on the IO expander of the UI board. This patch implements disabling that line via GPIO2[6], configuring the UI board's IO expander and setting only the pinmux settings that are needed for RMII operation. Tested on da850evm by adding a define for CONFIG_DRIVER_TI_EMAC_USE_RMII. Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com> Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca> CC: Sandeep Paulraj <s-paulraj@ti.com> CC: Ben Warren <biggerbadderben@gmail.com> CC: Mike Frysinger <vapier@gentoo.org> CC: Sughosh Ganu <urwithsughosh@gmail.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
/*
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* Miscellaneous DA8XX functions.
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*
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* Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
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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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#include <asm/io.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/da8xx_common.h>
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#ifndef CONFIG_USE_IRQ
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void irq_init(void)
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{
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/*
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* Mask all IRQs by clearing the global enable and setting
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* the enable clear for all the 90 interrupts.
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*/
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writel(0, &davinci_aintc_regs->ger);
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writel(0, &davinci_aintc_regs->hier);
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writel(0xffffffff, &davinci_aintc_regs->ecr1);
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writel(0xffffffff, &davinci_aintc_regs->ecr2);
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writel(0xffffffff, &davinci_aintc_regs->ecr3);
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}
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#endif
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/*
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* Enable PSC for various peripherals.
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*/
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int da8xx_configure_lpsc_items(const struct lpsc_resource *item,
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const int n_items)
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{
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int i;
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for (i = 0; i < n_items; i++)
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lpsc_on(item[i].lpsc_no);
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return 0;
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}
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#if defined(CONFIG_DRIVER_TI_EMAC) && defined(CONFIG_MACH_DAVINCI_DA850_EVM)
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void da850_emac_mii_mode_sel(int mode_sel)
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{
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int val;
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val = readl(&davinci_syscfg_regs->cfgchip3);
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if (mode_sel == 0)
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val &= ~(1 << 8);
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else
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val |= (1 << 8);
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writel(val, &davinci_syscfg_regs->cfgchip3);
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}
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#endif
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