arch/arm/include/asm/arch-tegra/ap.h

   1 /*
   2  * (C) Copyright 2010-2015
   3  * NVIDIA Corporation <www.nvidia.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7 #include <asm/types.h>
   8
   9 /* Stabilization delays, in usec */
  10 #define PLL_STABILIZATION_DELAY (300)
  11 #define IO_STABILIZATION_DELAY  (1000)
  12
  13 #define PLLX_ENABLED            (1 << 30)
  14 #define CCLK_BURST_POLICY       0x20008888
  15 #define SUPER_CCLK_DIVIDER      0x80000000
  16
  17 /* Calculate clock fractional divider value from ref and target frequencies */
  18 #define CLK_DIVIDER(REF, FREQ)  ((((REF) * 2) / FREQ) - 2)
  19
  20 /* Calculate clock frequency value from reference and clock divider value */
  21 #define CLK_FREQUENCY(REF, REG) (((REF) * 2) / (REG + 2))
  22
  23 /* AVP/CPU ID */
  24 #define PG_UP_TAG_0_PID_CPU     0x55555555      /* CPU aka "a9" aka "mpcore" */
  25 #define PG_UP_TAG_0             0x0
  26
  27 /* AP base physical address of internal SRAM */
  28 #define NV_PA_BASE_SRAM         0x40000000
  29
  30 #define EXCEP_VECTOR_CPU_RESET_VECTOR   (NV_PA_EVP_BASE + 0x100)
  31 #define CSITE_CPU_DBG0_LAR              (NV_PA_CSITE_BASE + 0x10FB0)
  32 #define CSITE_CPU_DBG1_LAR              (NV_PA_CSITE_BASE + 0x12FB0)
  33
  34 #define FLOW_CTLR_HALT_COP_EVENTS       (NV_PA_FLOW_BASE + 4)
  35 #define FLOW_MODE_STOP                  2
  36 #define HALT_COP_EVENT_JTAG             (1 << 28)
  37 #define HALT_COP_EVENT_IRQ_1            (1 << 11)
  38 #define HALT_COP_EVENT_FIQ_1            (1 << 9)
  39
  40 /* This is the main entry into U-Boot, used by the Cortex-A9 */
  41 extern void _start(void);
  42
  43 /**
  44  * Works out the SOC/SKU type used for clocks settings
  45  *
  46  * @return      SOC type - see TEGRA_SOC...
  47  */
  48 int tegra_get_chip_sku(void);
  49
  50 /**
  51  * Returns the pure SOC (chip ID) from the HIDREV register
  52  *
  53  * @return      SOC ID - see CHIPID_TEGRAxx...
  54  */
  55 int tegra_get_chip(void);
  56
  57 /**
  58  * Returns the SKU ID from the sku_info register
  59  *
  60  * @return      SKU ID - see SKU_ID_Txx...
  61  */
  62 int tegra_get_sku_info(void);
  63
  64 /* Do any chip-specific cache config */
  65 void config_cache(void);
  66
  67 #if defined(CONFIG_TEGRA_SUPPORT_NON_SECURE)
  68 bool tegra_cpu_is_non_secure(void);
  69 #endif