arch/arm/cpu/armv7/at91/sama5d4_devices.c

   1 /*
   2  * Copyright (C) 2014 Atmel
   3  *                    Bo Shen <voice.shen@atmel.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <asm/io.h>
  10 #include <asm/arch/at91_common.h>
  11 #include <asm/arch/at91_pmc.h>
  12 #include <asm/arch/clk.h>
  13 #include <asm/arch/sama5d4.h>
  14
  15 char *get_cpu_name()
  16 {
  17         unsigned int extension_id = get_extension_chip_id();
  18
  19         if (cpu_is_sama5d4())
  20                 switch (extension_id) {
  21                 case ARCH_EXID_SAMA5D41:
  22                         return "SAMA5D41";
  23                 case ARCH_EXID_SAMA5D42:
  24                         return "SAMA5D42";
  25                 case ARCH_EXID_SAMA5D43:
  26                         return "SAMA5D43";
  27                 case ARCH_EXID_SAMA5D44:
  28                         return "SAMA5D44";
  29                 default:
  30                         return "Unknown CPU type";
  31                 }
  32         else
  33                 return "Unknown CPU type";
  34 }
  35
  36 #ifdef CONFIG_USB_GADGET_ATMEL_USBA
  37 void at91_udp_hw_init(void)
  38 {
  39         struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
  40
  41         /* Enable UPLL clock */
  42         writel(AT91_PMC_UPLLEN | AT91_PMC_BIASEN, &pmc->uckr);
  43         /* Enable UDPHS clock */
  44         at91_periph_clk_enable(ATMEL_ID_UDPHS);
  45 }
  46 #endif