Sumit Garg | 82d45c1 | 2018-06-15 13:41:59 +0530 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | #include <arch.h> |
| 8 | #include <arch_helpers.h> |
| 9 | #include <platform_def.h> |
| 10 | #include <assert.h> |
| 11 | #include <bl_common.h> |
Sumit Garg | 84711f9 | 2018-06-15 14:34:42 +0530 | [diff] [blame] | 12 | #include <pl011.h> |
Sumit Garg | 82d45c1 | 2018-06-15 13:41:59 +0530 | [diff] [blame] | 13 | #include <debug.h> |
Sumit Garg | 58ed23d | 2018-06-15 15:02:31 +0530 | [diff] [blame^] | 14 | #include <mmio.h> |
Sumit Garg | bda9d3c | 2018-06-15 14:50:19 +0530 | [diff] [blame] | 15 | #include <sq_common.h> |
Sumit Garg | 82d45c1 | 2018-06-15 13:41:59 +0530 | [diff] [blame] | 16 | |
Sumit Garg | 84711f9 | 2018-06-15 14:34:42 +0530 | [diff] [blame] | 17 | static console_pl011_t console; |
Sumit Garg | e8c5e87 | 2018-06-15 14:38:50 +0530 | [diff] [blame] | 18 | static entry_point_info_t bl32_image_ep_info; |
| 19 | static entry_point_info_t bl33_image_ep_info; |
| 20 | |
| 21 | entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type) |
| 22 | { |
| 23 | assert(sec_state_is_valid(type)); |
| 24 | return type == NON_SECURE ? &bl33_image_ep_info : &bl32_image_ep_info; |
| 25 | } |
| 26 | |
| 27 | /******************************************************************************* |
| 28 | * Gets SPSR for BL32 entry |
| 29 | ******************************************************************************/ |
| 30 | uint32_t sq_get_spsr_for_bl32_entry(void) |
| 31 | { |
| 32 | /* |
| 33 | * The Secure Payload Dispatcher service is responsible for |
| 34 | * setting the SPSR prior to entry into the BL32 image. |
| 35 | */ |
| 36 | return 0; |
| 37 | } |
| 38 | |
| 39 | /******************************************************************************* |
| 40 | * Gets SPSR for BL33 entry |
| 41 | ******************************************************************************/ |
| 42 | uint32_t sq_get_spsr_for_bl33_entry(void) |
| 43 | { |
| 44 | unsigned long el_status; |
| 45 | unsigned int mode; |
| 46 | uint32_t spsr; |
| 47 | |
| 48 | /* Figure out what mode we enter the non-secure world in */ |
| 49 | el_status = read_id_aa64pfr0_el1() >> ID_AA64PFR0_EL2_SHIFT; |
| 50 | el_status &= ID_AA64PFR0_ELX_MASK; |
| 51 | |
| 52 | mode = (el_status) ? MODE_EL2 : MODE_EL1; |
| 53 | |
| 54 | spsr = SPSR_64(mode, MODE_SP_ELX, DISABLE_ALL_EXCEPTIONS); |
| 55 | return spsr; |
| 56 | } |
Sumit Garg | 84711f9 | 2018-06-15 14:34:42 +0530 | [diff] [blame] | 57 | |
Sumit Garg | 82d45c1 | 2018-06-15 13:41:59 +0530 | [diff] [blame] | 58 | void bl31_early_platform_setup(bl31_params_t *from_bl2, |
| 59 | void *plat_params_from_bl2) |
| 60 | { |
Sumit Garg | 84711f9 | 2018-06-15 14:34:42 +0530 | [diff] [blame] | 61 | /* Initialize the console to provide early debug support */ |
| 62 | (void)console_pl011_register(PLAT_SQ_BOOT_UART_BASE, |
| 63 | PLAT_SQ_BOOT_UART_CLK_IN_HZ, |
| 64 | SQ_CONSOLE_BAUDRATE, &console); |
| 65 | |
| 66 | console_set_scope(&console.console, CONSOLE_FLAG_BOOT | |
| 67 | CONSOLE_FLAG_RUNTIME); |
| 68 | |
Sumit Garg | 82d45c1 | 2018-06-15 13:41:59 +0530 | [diff] [blame] | 69 | /* There are no parameters from BL2 if BL31 is a reset vector */ |
| 70 | assert(from_bl2 == NULL); |
| 71 | assert(plat_params_from_bl2 == NULL); |
Sumit Garg | e8c5e87 | 2018-06-15 14:38:50 +0530 | [diff] [blame] | 72 | |
| 73 | #ifdef BL32_BASE |
| 74 | /* Populate entry point information for BL32 */ |
| 75 | SET_PARAM_HEAD(&bl32_image_ep_info, |
| 76 | PARAM_EP, |
| 77 | VERSION_1, |
| 78 | 0); |
| 79 | SET_SECURITY_STATE(bl32_image_ep_info.h.attr, SECURE); |
| 80 | bl32_image_ep_info.pc = BL32_BASE; |
| 81 | bl32_image_ep_info.spsr = sq_get_spsr_for_bl32_entry(); |
| 82 | #endif /* BL32_BASE */ |
| 83 | |
| 84 | /* Populate entry point information for BL33 */ |
| 85 | SET_PARAM_HEAD(&bl33_image_ep_info, |
| 86 | PARAM_EP, |
| 87 | VERSION_1, |
| 88 | 0); |
| 89 | /* |
| 90 | * Tell BL31 where the non-trusted software image |
| 91 | * is located and the entry state information |
| 92 | */ |
| 93 | bl33_image_ep_info.pc = PRELOADED_BL33_BASE; |
| 94 | bl33_image_ep_info.spsr = sq_get_spsr_for_bl33_entry(); |
| 95 | SET_SECURITY_STATE(bl33_image_ep_info.h.attr, NON_SECURE); |
Sumit Garg | 82d45c1 | 2018-06-15 13:41:59 +0530 | [diff] [blame] | 96 | } |
| 97 | |
Sumit Garg | 58ed23d | 2018-06-15 15:02:31 +0530 | [diff] [blame^] | 98 | static void sq_configure_sys_timer(void) |
| 99 | { |
| 100 | unsigned int reg_val; |
| 101 | |
| 102 | reg_val = (1 << CNTACR_RPCT_SHIFT) | (1 << CNTACR_RVCT_SHIFT); |
| 103 | reg_val |= (1 << CNTACR_RFRQ_SHIFT) | (1 << CNTACR_RVOFF_SHIFT); |
| 104 | reg_val |= (1 << CNTACR_RWVT_SHIFT) | (1 << CNTACR_RWPT_SHIFT); |
| 105 | mmio_write_32(SQ_SYS_TIMCTL_BASE + |
| 106 | CNTACR_BASE(PLAT_SQ_NSTIMER_FRAME_ID), reg_val); |
| 107 | |
| 108 | reg_val = (1 << CNTNSAR_NS_SHIFT(PLAT_SQ_NSTIMER_FRAME_ID)); |
| 109 | mmio_write_32(SQ_SYS_TIMCTL_BASE + CNTNSAR, reg_val); |
| 110 | } |
| 111 | |
Sumit Garg | 82d45c1 | 2018-06-15 13:41:59 +0530 | [diff] [blame] | 112 | void bl31_platform_setup(void) |
| 113 | { |
Sumit Garg | bda9d3c | 2018-06-15 14:50:19 +0530 | [diff] [blame] | 114 | /* Initialize the CCN interconnect */ |
| 115 | plat_sq_interconnect_init(); |
| 116 | plat_sq_interconnect_enter_coherency(); |
Sumit Garg | c412c2c | 2018-06-15 14:58:25 +0530 | [diff] [blame] | 117 | |
| 118 | /* Initialize the GIC driver, cpu and distributor interfaces */ |
| 119 | sq_gic_driver_init(); |
| 120 | sq_gic_init(); |
Sumit Garg | 58ed23d | 2018-06-15 15:02:31 +0530 | [diff] [blame^] | 121 | |
| 122 | /* Enable and initialize the System level generic timer */ |
| 123 | mmio_write_32(SQ_SYS_CNTCTL_BASE + CNTCR_OFF, |
| 124 | CNTCR_FCREQ(0) | CNTCR_EN); |
| 125 | |
| 126 | /* Allow access to the System counter timer module */ |
| 127 | sq_configure_sys_timer(); |
Sumit Garg | 82d45c1 | 2018-06-15 13:41:59 +0530 | [diff] [blame] | 128 | } |
| 129 | |
| 130 | void bl31_plat_runtime_setup(void) |
| 131 | { |
| 132 | } |
| 133 | |
| 134 | void bl31_plat_arch_setup(void) |
| 135 | { |
| 136 | } |
Sumit Garg | 58ed23d | 2018-06-15 15:02:31 +0530 | [diff] [blame^] | 137 | |
| 138 | unsigned int plat_get_syscnt_freq2(void) |
| 139 | { |
| 140 | unsigned int counter_base_frequency; |
| 141 | |
| 142 | /* Read the frequency from Frequency modes table */ |
| 143 | counter_base_frequency = mmio_read_32(SQ_SYS_CNTCTL_BASE + CNTFID_OFF); |
| 144 | |
| 145 | /* The first entry of the frequency modes table must not be 0 */ |
| 146 | if (counter_base_frequency == 0) |
| 147 | panic(); |
| 148 | |
| 149 | return counter_base_frequency; |
| 150 | } |