psp_gen2.c File Reference

#include <bootstate.h>
#include <console/console.h>
#include <cpu/amd/msr.h>
#include <cpu/x86/msr.h>
#include <device/mmio.h>
#include <timer.h>
#include <amdblocks/psp.h>
#include <soc/iomap.h>
#include "psp_def.h"

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Data Structures
union	pspv2_mbox_command
struct	pspv2_mbox_command::pspv2_mbox_cmd_fields

Macros
#define	PSP_MAILBOX_COMMAND_OFFSET   0x10570 /* 4 bytes */
#define	PSP_MAILBOX_BUFFER_OFFSET   0x10574 /* 8 bytes */

Functions
static uintptr_t	soc_get_psp_base_address (void)
static u16	rd_mbox_sts (uintptr_t psp_mmio)
static void	wr_mbox_cmd (uintptr_t psp_mmio, u8 cmd)
static u8	rd_mbox_recovery (uintptr_t psp_mmio)
static void	wr_mbox_buffer_ptr (uintptr_t psp_mmio, void *buffer)
static int	wait_command (uintptr_t psp_mmio, bool wait_for_ready)
int	send_psp_command (u32 command, void *buffer)
enum cb_err	soc_read_c2p38 (uint32_t *msg_38_value)
static void	psp_set_spl_fuse (void *unused)
	BOOT_STATE_INIT_ENTRY (BS_PAYLOAD_BOOT, BS_ON_ENTRY, psp_set_spl_fuse, NULL)

Macro Definition Documentation

PSP_MAILBOX_BUFFER_OFFSET

#define PSP_MAILBOX_BUFFER_OFFSET   0x10574 /* 8 bytes */

Definition at line 14 of file psp_gen2.c.

PSP_MAILBOX_COMMAND_OFFSET

#define PSP_MAILBOX_COMMAND_OFFSET   0x10570 /* 4 bytes */

Definition at line 13 of file psp_gen2.c.

Function Documentation

BOOT_STATE_INIT_ENTRY()

BOOT_STATE_INIT_ENTRY	(	BS_PAYLOAD_BOOT	,
		BS_ON_ENTRY	,
		psp_set_spl_fuse	,
		NULL
	)

psp_set_spl_fuse()

static void psp_set_spl_fuse ( void *  unused )

static

Definition at line 132 of file psp_gen2.c.

References BIOS_DEBUG, BIOS_ERR, buffer, CB_SUCCESS, CONFIG, CORE_2_PSP_MSG_38_FUSE_SPL, MBOX_BIOS_CMD_SET_SPL_FUSE, NULL, printk, psp_print_cmd_status(), send_psp_command(), and soc_read_c2p38().

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rd_mbox_recovery()

static u8 rd_mbox_recovery ( uintptr_t  psp_mmio )

static

Definition at line 52 of file psp_gen2.c.

References pspv2_mbox_command::fields, PSP_MAILBOX_COMMAND_OFFSET, read32p(), pspv2_mbox_command::pspv2_mbox_cmd_fields::recovery, and pspv2_mbox_command::val.

Referenced by send_psp_command().

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rd_mbox_sts()

static u16 rd_mbox_sts ( uintptr_t  psp_mmio )

static

Definition at line 35 of file psp_gen2.c.

References pspv2_mbox_command::fields, pspv2_mbox_command::pspv2_mbox_cmd_fields::mbox_status, PSP_MAILBOX_COMMAND_OFFSET, read32p(), and pspv2_mbox_command::val.

Referenced by send_psp_command().

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send_psp_command()

int send_psp_command	(	u32	command,
		void *	buffer
	)

Definition at line 92 of file psp_gen2.c.

References buffer, MBOX_BIOS_CMD_SX_INFO, PSPSTS_CMD_TIMEOUT, PSPSTS_HALTED, PSPSTS_INIT_TIMEOUT, PSPSTS_NOBASE, PSPSTS_RECOVERY, PSPSTS_SEND_ERROR, PSPV1_STATUS_ERROR, PSPV1_STATUS_HALT, PSPV1_STATUS_RECOVERY, PSPV1_STATUS_TERMINATED, rd_mbox_recovery(), rd_mbox_sts(), soc_get_mbox_address(), soc_get_psp_base_address(), wait_command(), wait_initialized(), wr_mbox_buffer_ptr(), wr_mbox_cmd(), and wr_mbox_cmd_resp().

Referenced by psp_notify_boot_done(), psp_notify_smm(), psp_notify_sx_info(), and psp_set_spl_fuse().

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soc_get_psp_base_address()

static uintptr_t soc_get_psp_base_address ( void  )

static

Definition at line 27 of file psp_gen2.c.

References BIOS_ERR, msr_struct::lo, printk, PSP_ADDR_MSR, and rdmsr().

Referenced by send_psp_command().

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soc_read_c2p38()

enum cb_err soc_read_c2p38

(

uint32_t *

msg_38_value

)

Definition at line 92 of file psp_gen2.c.

Referenced by psp_set_spl_fuse().

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wait_command()

static int wait_command ( uintptr_t  psp_mmio, bool  wait_for_ready  )

static

Definition at line 65 of file psp_gen2.c.

References pspv2_mbox_command::fields, pspv2_mbox_command::pspv2_mbox_cmd_fields::mbox_command, PSP_CMD_TIMEOUT, PSP_MAILBOX_COMMAND_OFFSET, PSPSTS_CMD_TIMEOUT, read32p(), pspv2_mbox_command::pspv2_mbox_cmd_fields::ready, stopwatch_expired(), stopwatch_init_msecs_expire(), pspv2_mbox_command::val, and wait_for_ready().

Referenced by send_psp_command().

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wr_mbox_buffer_ptr()

static void wr_mbox_buffer_ptr ( uintptr_t  psp_mmio, void *  buffer  )

static

Definition at line 60 of file psp_gen2.c.

References buffer, PSP_MAILBOX_BUFFER_OFFSET, and write64p().

Referenced by send_psp_command().

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wr_mbox_cmd()

static void wr_mbox_cmd ( uintptr_t  psp_mmio, u8  cmd  )

static

Definition at line 43 of file psp_gen2.c.

References pspv2_mbox_command::fields, pspv2_mbox_command::pspv2_mbox_cmd_fields::mbox_command, PSP_MAILBOX_COMMAND_OFFSET, pspv2_mbox_command::val, and write32p().

Referenced by send_psp_command().

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