| Arthur Heymans | 4da9d6b4 | 2023-07-13 14:19:09 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | |
| 3 | #include <stdint.h> |
| 4 | #include <amdblocks/acpimmio.h> |
| 5 | #include <amdblocks/aoac.h> |
| 6 | #include <soc/aoac_defs.h> |
| 7 | #include <soc/southbridge.h> |
| 8 | #include <delay.h> |
| 9 | |
| 10 | #define FCH_AOAC_UART_FOR_CONSOLE \ |
| 11 | (CONFIG_UART_FOR_CONSOLE == 0 ? FCH_AOAC_DEV_UART0 \ |
| 12 | : CONFIG_UART_FOR_CONSOLE == 1 ? FCH_AOAC_DEV_UART1 \ |
| 13 | : CONFIG_UART_FOR_CONSOLE == 2 ? FCH_AOAC_DEV_UART2 \ |
| 14 | : -1) |
| 15 | #if CONFIG(AMD_SOC_CONSOLE_UART) && FCH_AOAC_UART_FOR_CONSOLE == -1 |
| 16 | # error Unsupported UART_FOR_CONSOLE chosen |
| 17 | #endif |
| 18 | |
| 19 | void wait_for_aoac_enabled(unsigned int dev) |
| 20 | { |
| 21 | while (!is_aoac_device_enabled(dev)) |
| 22 | udelay(100); |
| 23 | } |
| 24 | |
| 25 | void enable_aoac_devices(void) |
| 26 | { |
| 27 | if (CONFIG(AMD_SOC_CONSOLE_UART)) |
| 28 | power_on_aoac_device(FCH_AOAC_UART_FOR_CONSOLE); |
| 29 | |
| 30 | if (CONFIG(AMD_SOC_CONSOLE_UART)) |
| 31 | wait_for_aoac_enabled(FCH_AOAC_UART_FOR_CONSOLE); |
| 32 | } |