arch/arm/mach-at91/armv7/sama5d2_devices.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2015 Atmel Corporation
   4  *                    Wenyou Yang <wenyou.yang@atmel.com>
   5  */
   6
   7 #include <common.h>
   8 #include <asm/io.h>
   9 #include <asm/arch/clk.h>
  10 #include <asm/arch/sama5d2.h>
  11
  12 int cpu_is_sama5d2(void)
  13 {
  14         unsigned int chip_id = get_chip_id();
  15
  16         return ((chip_id == ARCH_ID_SAMA5D2) ||
  17                 (chip_id == ARCH_ID_SAMA5D2_SIP)) ? 1 : 0;
  18 }
  19
  20 char *get_cpu_name(void)
  21 {
  22         unsigned int chip_id = get_chip_id();
  23         unsigned int extension_id = get_extension_chip_id();
  24
  25         if (chip_id == ARCH_ID_SAMA5D2) {
  26                 switch (extension_id) {
  27                 case ARCH_EXID_SAMA5D21CU:
  28                         return "SAMA5D21";
  29                 case ARCH_EXID_SAMA5D22CU:
  30                         return "SAMA5D22-CU";
  31                 case ARCH_EXID_SAMA5D22CN:
  32                         return "SAMA5D22-CN";
  33                 case ARCH_EXID_SAMA5D23CU:
  34                         return "SAMA5D23-CU";
  35                 case ARCH_EXID_SAMA5D24CX:
  36                         return "SAMA5D24-CX";
  37                 case ARCH_EXID_SAMA5D24CU:
  38                         return "SAMA5D24-CU";
  39                 case ARCH_EXID_SAMA5D26CU:
  40                         return "SAMA5D26-CU";
  41                 case ARCH_EXID_SAMA5D27CU:
  42                         return "SAMA5D27-CU";
  43                 case ARCH_EXID_SAMA5D27CN:
  44                         return "SAMA5D27-CN";
  45                 case ARCH_EXID_SAMA5D28CU:
  46                         return "SAMA5D28-CU";
  47                 case ARCH_EXID_SAMA5D28CN:
  48                         return "SAMA5D28-CN";
  49                 }
  50         }
  51
  52         if ((chip_id == ARCH_ID_SAMA5D2) || (chip_id == ARCH_ID_SAMA5D2_SIP)) {
  53                 switch (extension_id) {
  54                 case ARCH_EXID_SAMA5D225C_D1M:
  55                         return "SAMA5D225 128M bits DDR2 SDRAM";
  56                 case ARCH_EXID_SAMA5D27C_D5M:
  57                         return "SAMA5D27 512M bits DDR2 SDRAM";
  58                 case ARCH_EXID_SAMA5D27C_D1G:
  59                         return "SAMA5D27 1G bits DDR2 SDRAM";
  60                 case ARCH_EXID_SAMA5D28C_D1G:
  61                         return "SAMA5D28 1G bits DDR2 SDRAM";
  62                 }
  63         }
  64
  65         return "Unknown CPU type";
  66 }
  67
  68 #ifdef CONFIG_USB_GADGET_ATMEL_USBA
  69 void at91_udp_hw_init(void)
  70 {
  71         at91_upll_clk_enable();
  72
  73         at91_periph_clk_enable(ATMEL_ID_UDPHS);
  74 }
  75 #endif