Etienne Carriere | 7ad2c01 | 2019-12-08 08:14:03 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017-2020, STMicroelectronics - All Rights Reserved |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
Etienne Carriere | beb53d9 | 2020-05-13 10:13:54 +0200 | [diff] [blame^] | 7 | #include <assert.h> |
| 8 | #include <stdint.h> |
| 9 | |
| 10 | #include <platform_def.h> |
| 11 | |
| 12 | #include <common/debug.h> |
| 13 | #include <drivers/st/stm32_gpio.h> |
| 14 | |
Etienne Carriere | 7ad2c01 | 2019-12-08 08:14:03 +0100 | [diff] [blame] | 15 | #include <stm32mp_shared_resources.h> |
| 16 | |
Etienne Carriere | beb53d9 | 2020-05-13 10:13:54 +0200 | [diff] [blame^] | 17 | /* GPIOZ pin count is saved in RAM to prevent parsing FDT several times */ |
| 18 | static int8_t gpioz_nbpin = -1; |
| 19 | |
| 20 | static unsigned int get_gpio_nbpin(unsigned int bank) |
| 21 | { |
| 22 | if (bank != GPIO_BANK_Z) { |
| 23 | int count = fdt_get_gpio_bank_pin_count(bank); |
| 24 | |
| 25 | assert((count >= 0) || (count <= (GPIO_PIN_MAX + 1))); |
| 26 | |
| 27 | return (unsigned int)count; |
| 28 | } |
| 29 | |
| 30 | if (gpioz_nbpin < 0) { |
| 31 | int count = fdt_get_gpio_bank_pin_count(GPIO_BANK_Z); |
| 32 | |
| 33 | assert((count == 0) || (count == STM32MP_GPIOZ_PIN_MAX_COUNT)); |
| 34 | |
| 35 | gpioz_nbpin = count; |
| 36 | } |
| 37 | |
| 38 | return (unsigned int)gpioz_nbpin; |
| 39 | } |
| 40 | |
| 41 | static unsigned int __unused get_gpioz_nbpin(void) |
| 42 | { |
| 43 | return get_gpio_nbpin(GPIO_BANK_Z); |
| 44 | } |
| 45 | |
Etienne Carriere | 7ad2c01 | 2019-12-08 08:14:03 +0100 | [diff] [blame] | 46 | /* Currently allow full access by non-secure to platform clock services */ |
| 47 | bool stm32mp_nsec_can_access_clock(unsigned long clock_id) |
| 48 | { |
| 49 | return true; |
| 50 | } |
| 51 | |
| 52 | /* Currently allow full access by non-secure to platform reset services */ |
| 53 | bool stm32mp_nsec_can_access_reset(unsigned int reset_id) |
| 54 | { |
| 55 | return true; |
| 56 | } |