/* SPDX-License-Identifier: GPL-2.0-only */ #include <amdblocks/aoac.h> #include <delay.h> #include <soc/aoac_defs.h> #include <soc/southbridge.h> #include <types.h> /* * Table of devices that need their AOAC registers enabled and waited * upon (usually about .55 milliseconds). Instead of individual delays * waiting for each device to become available, a single delay will be * executed. */ static const unsigned int aoac_devs[] = { FCH_AOAC_DEV_UART0 + CONFIG_UART_FOR_CONSOLE * 2, FCH_AOAC_DEV_AMBA, FCH_AOAC_DEV_I2C0, FCH_AOAC_DEV_I2C1, FCH_AOAC_DEV_I2C2, FCH_AOAC_DEV_I2C3, }; void enable_aoac_devices(void) { bool status; int i; for (i = 0; i < ARRAY_SIZE(aoac_devs); i++) power_on_aoac_device(aoac_devs[i]); /* Wait for AOAC devices to indicate power and clock OK */ do { udelay(100); status = true; for (i = 0; i < ARRAY_SIZE(aoac_devs); i++) status &= is_aoac_device_enabled(aoac_devs[i]); } while (!status); }