1 /* 2 * (C) Copyright 2010-2011 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 #define CORESIGHT_UNLOCK 0xC5ACCE55; 28 29 /* AP base physical address of internal SRAM */ 30 #define NV_PA_BASE_SRAM 0x40000000 31 32 #define EXCEP_VECTOR_CPU_RESET_VECTOR (NV_PA_EVP_BASE + 0x100) 33 #define CSITE_CPU_DBG0_LAR (NV_PA_CSITE_BASE + 0x10FB0) 34 #define CSITE_CPU_DBG1_LAR (NV_PA_CSITE_BASE + 0x12FB0) 35 36 #define FLOW_CTLR_HALT_COP_EVENTS (NV_PA_FLOW_BASE + 4) 37 #define FLOW_MODE_STOP 2 38 #define HALT_COP_EVENT_JTAG (1 << 28) 39 #define HALT_COP_EVENT_IRQ_1 (1 << 11) 40 #define HALT_COP_EVENT_FIQ_1 (1 << 9) 41 42 /* This is the main entry into U-Boot, used by the Cortex-A9 */ 43 extern void _start(void); 44 45 /** 46 * Works out the SOC/SKU type used for clocks settings 47 * 48 * @return SOC type - see TEGRA_SOC... 49 */ 50 int tegra_get_chip_sku(void); 51 52 /** 53 * Returns the pure SOC (chip ID) from the HIDREV register 54 * 55 * @return SOC ID - see CHIPID_TEGRAxx... 56 */ 57 int tegra_get_chip(void); 58 59 /** 60 * Returns the SKU ID from the sku_info register 61 * 62 * @return SKU ID - see SKU_ID_Txx... 63 */ 64 int tegra_get_sku_info(void); 65 66 /* Do any chip-specific cache config */ 67 void config_cache(void); 68