git.sur5r.net Git - u-boot/blob - arch/arm/cpu/armv7/sunxi/prcm.c

   1 /*
   2  * Sunxi A31 Power Management Unit
   3  *
   4  * (C) Copyright 2013 Oliver Schinagl <oliver@schinagl.nl>
   5  * http://linux-sunxi.org
   6  *
   7  * Based on sun6i sources and earlier U-Boot Allwinner A10 SPL work
   8  *
   9  * (C) Copyright 2006-2013
  10  * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
  11  * Berg Xing <bergxing@allwinnertech.com>
  12  * Tom Cubie <tangliang@allwinnertech.com>
  13  *
  14  * SPDX-License-Identifier:     GPL-2.0+
  15  */
  16
  17 #include <common.h>
  18 #include <errno.h>
  19 #include <asm/io.h>
  20 #include <asm/arch/cpu.h>
  21 #include <asm/arch/prcm.h>
  22 #include <asm/arch/sys_proto.h>
  23
  24 void prcm_init_apb0(void)
  25 {
  26         struct sunxi_prcm_reg *prcm =
  27                 (struct sunxi_prcm_reg *)SUNXI_PRCM_BASE;
  28
  29         setbits_le32(&prcm->apb0_gate, PRCM_APB0_GATE_P2WI |
  30                                        PRCM_APB0_GATE_PIO);
  31         setbits_le32(&prcm->apb0_reset, PRCM_APB0_RESET_P2WI |
  32                                         PRCM_APB0_RESET_PIO);
  33 }