diff options
Diffstat (limited to 'plat/gxb/plat_init.c')
| -rw-r--r-- | plat/gxb/plat_init.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/plat/gxb/plat_init.c b/plat/gxb/plat_init.c new file mode 100644 index 0000000..a19e1f7 --- /dev/null +++ b/plat/gxb/plat_init.c @@ -0,0 +1,44 @@ + +/* + * 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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