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/*
* arch/arm/cpu/armv8/common/firmware/plat/gxb/plat_init.c
*
* Copyright (C) 2015 Amlogic, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <io.h>
#include <stdio.h>
#include <stdint.h>
#include <timer.h>
#include <asm/arch/secure_apb.h>
void pinmux_init(void) {
//detect sdio debug board
unsigned pinmux_2 = readl(P_PERIPHS_PIN_MUX_2);
// clear sdio pinmux
setbits_le32(P_PREG_PAD_GPIO2_O,0x3f<<20);
setbits_le32(P_PREG_PAD_GPIO2_EN_N,0x3f<<20);
clrbits_le32(P_PERIPHS_PIN_MUX_2,7<<12); //clear sd d1~d3 pinmux
if (!(readl(P_PREG_PAD_GPIO2_I)&(1<<24))) { //sd_d3 low, debug board in
clrbits_le32(P_AO_RTI_PIN_MUX_REG,3<<11); //clear AO uart pinmux
setbits_le32(P_PERIPHS_PIN_MUX_8,3<<9);
serial_puts("\nsdio debug board detected ");
}
else{
writel(pinmux_2,P_PERIPHS_PIN_MUX_2);
serial_puts("\nno sdio debug board detected ");
}
}
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