| /***************************************************************************** |
| * |
| * Copyright (c) 2020, Advanced Micro Devices, Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * * Neither the name of Advanced Micro Devices, Inc. nor the names of |
| * its contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| ***************************************************************************/ |
| |
| #ifndef _BL_SYSCALL_PUBLIC_H_ |
| #define _BL_SYSCALL_PUBLIC_H_ |
| |
| #include <stdint.h> |
| |
| #define SVC_EXIT 0x00 |
| #define SVC_ENTER 0x02 |
| #define SVC_DEBUG_PRINT 0x06 |
| #define SVC_DEBUG_PRINT_EX 0x1A |
| #define SVC_GET_BOOT_MODE 0x1C |
| #define SVC_GET_SPI_INFO 0x60 |
| #define SVC_MAP_SPIROM_DEVICE 0x61 |
| #define SVC_UNMAP_SPIROM_DEVICE 0x62 |
| #define SVC_MAP_FCH_IO_DEVICE 0x63 |
| #define SVC_UNMAP_FCH_IO_DEVICE 0x64 |
| #define SVC_UPDATE_PSP_BIOS_DIR 0x65 |
| #define SVC_COPY_DATA_FROM_UAPP 0x66 |
| |
| enum psp_boot_mode { |
| PSP_BOOT_MODE_S0 = 0x0, |
| PSP_BOOT_MODE_S0i3_RESUME = 0x1, |
| PSP_BOOT_MODE_S3_RESUME = 0x2, |
| PSP_BOOT_MODE_S4 = 0x3, |
| PSP_BOOT_MODE_S5_COLD = 0x4, |
| PSP_BOOT_MODE_S5_WARM = 0x5, |
| }; |
| |
| enum fch_io_device { |
| FCH_IO_DEVICE_SPI, |
| FCH_IO_DEVICE_I2C, |
| FCH_IO_DEVICE_GPIO, |
| FCH_IO_DEVICE_ESPI, |
| FCH_IO_DEVICE_IOMUX, |
| FCH_IO_DEVICE_MISC, |
| FCH_IO_DEVICE_AOAC, |
| FCH_IO_DEVICE_IOPORT, |
| |
| FCH_IO_DEVICE_END, |
| }; |
| |
| enum fch_i2c_controller_id { |
| FCH_I2C_CONTROLLER_ID_0 = 0, |
| FCH_I2C_CONTROLLER_ID_1 = 1, |
| FCH_I2C_CONTROLLER_ID_2 = 2, |
| FCH_I2C_CONTROLLER_ID_3 = 3, |
| FCH_I2C_CONTROLLER_ID_MAX, |
| }; |
| |
| struct spirom_info { |
| void *SpiBiosSysHubBase; |
| void *SpiBiosSmnBase; |
| uint32_t SpiBiosSize; |
| }; |
| |
| /* |
| * Exit to the main Boot Loader. This does not return back to user application. |
| * |
| * Parameters: |
| * status - either Ok or error code defined by AGESA |
| */ |
| void svc_exit(uint32_t status); |
| |
| /* Print debug message into serial console. |
| * |
| * Parameters: |
| * string - null-terminated string |
| */ |
| void svc_debug_print(const char *string); |
| |
| /* Print 4 DWORD values in hex to serial console |
| * |
| * Parameters: |
| * dword0...dword3 - 32-bit DWORD to print |
| */ |
| void svc_debug_print_ex(uint32_t dword0, |
| uint32_t dword1, uint32_t dword2, uint32_t dword3); |
| |
| /* Description - Returns the current boot mode from the enum psp_boot_mode found in |
| * bl_public.h. |
| * |
| * Inputs - boot_mode - Output parameter passed in R0 |
| * |
| * Outputs - The boot mode in boot_mode. |
| * See Return Values. |
| * |
| * Return Values - BL_OK |
| * BL_ERR_NULL_PTR |
| * Other BL_ERRORs lofted up from called functions |
| */ |
| uint32_t svc_get_boot_mode(uint32_t *boot_mode); |
| |
| /* Add delay in micro seconds |
| * |
| * Parameters: |
| * delay - required delay value in microseconds |
| * |
| * Return value: NONE |
| */ |
| void svc_delay_in_usec(uint32_t delay); |
| |
| /* Get the SPI-ROM information |
| * |
| * Parameters: |
| * spi_rom_iInfo - SPI-ROM information |
| * |
| * Return value: BL_OK or error code |
| */ |
| uint32_t svc_get_spi_rom_info(struct spirom_info *spi_rom_info); |
| |
| /* Map the FCH IO device register space (SPI/I2C/GPIO/eSPI/etc...) |
| * |
| * Parameters: |
| * io_device - ID for respective FCH IO controller register space to be mapped |
| * arg1 - Based on IODevice ID, interpretation of this argument changes. |
| * arg2 - Based on IODevice ID, interpretation of this argument changes. |
| * io_device_axi_addr - AXI address for respective FCH IO device register space |
| * |
| * Return value: BL_OK or error code |
| */ |
| uint32_t svc_map_fch_dev(enum fch_io_device io_device, |
| uint32_t arg1, uint32_t arg2, void **io_device_axi_addr); |
| |
| /* Unmap the FCH IO device register space mapped earlier using Svc_MapFchIODevice() |
| * |
| * Parameters: |
| * io_device - ID for respective FCH IO controller register space to be unmapped |
| * io_device_addr - AXI address for respective FCH IO device register space |
| * |
| * Return value: BL_OK or error code |
| */ |
| uint32_t svc_unmap_fch_dev(enum fch_io_device io_device, |
| void *io_device_axi_addr); |
| |
| /* Map the SPIROM FLASH device address space |
| * |
| * Parameters: |
| * SpiRomAddr - Address in SPIROM tobe mapped (SMN based) |
| * size - Size to be mapped |
| * pSpiRomAddrAxi - Mapped address in AXI space |
| * |
| * Return value: BL_OK or error code |
| */ |
| uint32_t svc_map_spi_rom(void *spi_rom_addr, |
| uint32_t size, void **spi_rom_axi_addr); |
| |
| /* Unmap the SPIROM FLASH device address space mapped earlier using Svc_MapSpiRomDevice() |
| * |
| * Parameters: |
| * pSpiRomAddrAxi - Address in AXI address space previously mapped |
| * |
| * Return value: BL_OK or error code |
| */ |
| uint32_t svc_unmap_spi_rom(void *spi_rom_addr); |
| |
| /* Updates the offset at which PSP or BIOS Directory can be found in the |
| * SPI flash |
| * |
| * Parameters: |
| * psp_dir_offset - [in/out] Offset at which PSP Directory can be |
| * found in the SPI Flash. Same pointer is used |
| * to return the offset in case of GET operation |
| * bios_dir_offset - [in/out] Offset at which BIOS Directory can be |
| * found in the SPI Flash. Same pointer is used |
| * to return the offset in case of GET operation |
| * |
| * Return value: BL_OK or error code |
| */ |
| uint32_t svc_update_psp_bios_dir(uint32_t *psp_dir_offset, |
| uint32_t *bios_dir_offset); |
| |
| /* Copies the data that is shared by verstage to the PSP BL owned memory |
| * |
| * Parameters: |
| * address - Address in UAPP controlled/owned memory |
| * size - Total size of memory to copy (max 16Kbytes) |
| */ |
| uint32_t svc_save_uapp_data(void *address, uint32_t size); |
| |
| /* |
| * Write postcode to Port-80 |
| * |
| * Parameters: |
| * postcode - Postcode value to be written on port-80h |
| */ |
| uint32_t svc_write_postcode(uint32_t postcode); |
| |
| /* C entry point for the Bootloader Userspace Application */ |
| void Main(void); |
| |
| #endif /* _BL_SYSCALL__PUBLIC_H_ */ |