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Diffstat (limited to 'src/southbridge/amd/agesa/hudson/smihandler.c')
-rw-r--r--src/southbridge/amd/agesa/hudson/smihandler.c133
1 files changed, 0 insertions, 133 deletions
diff --git a/src/southbridge/amd/agesa/hudson/smihandler.c b/src/southbridge/amd/agesa/hudson/smihandler.c
deleted file mode 100644
index a942c24ada..0000000000
--- a/src/southbridge/amd/agesa/hudson/smihandler.c
+++ /dev/null
@@ -1,133 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-
-/*
- * SMI handler for Hudson southbridges
- */
-
-#include <amdblocks/acpimmio.h>
-#include <arch/io.h>
-#include <cpu/x86/smm.h>
-
-#include "hudson.h"
-#include "smi.h"
-
-#define SMI_0x88_ACPI_COMMAND (1 << 11)
-
-enum smi_source {
- SMI_SOURCE_SCI = (1 << 0),
- SMI_SOURCE_GPE = (1 << 1),
- SMI_SOURCE_0x84 = (1 << 2),
- SMI_SOURCE_0x88 = (1 << 3),
- SMI_SOURCE_IRQ_TRAP = (1 << 4),
- SMI_SOURCE_0x90 = (1 << 5)
-};
-
-static void hudson_apmc_smi_handler(void)
-{
- u32 reg32;
- const uint8_t cmd = inb(ACPI_SMI_CTL_PORT);
-
- switch (cmd) {
- case ACPI_SMI_CMD_ENABLE:
- reg32 = inl(ACPI_PM1_CNT_BLK);
- reg32 |= (1 << 0); /* SCI_EN */
- outl(reg32, ACPI_PM1_CNT_BLK);
- break;
- case ACPI_SMI_CMD_DISABLE:
- reg32 = inl(ACPI_PM1_CNT_BLK);
- reg32 &= ~(1 << 0); /* clear SCI_EN */
- outl(ACPI_PM1_CNT_BLK, reg32);
- break;
- }
-
- mainboard_smi_apmc(cmd);
-}
-
-int southbridge_io_trap_handler(int smif)
-{
- return 0;
-}
-
-static void process_smi_sci(void)
-{
- const uint32_t status = smi_read32(0x10);
-
- /* Clear events to prevent re-entering SMI if event isn't handled */
- smi_write32(0x10, status);
-}
-
-static void process_gpe_smi(void)
-{
- const uint32_t status = smi_read32(0x80);
- const uint32_t gevent_mask = (1 << 24) - 1;
-
- /* Only Bits [23:0] indicate GEVENT SMIs. */
- if (status & gevent_mask) {
- /* A GEVENT SMI occurred */
- mainboard_smi_gpi(status & gevent_mask);
- }
-
- /* Clear events to prevent re-entering SMI if event isn't handled */
- smi_write32(0x80, status);
-}
-
-static void process_smi_0x84(void)
-{
- const uint32_t status = smi_read32(0x84);
-
- /* Clear events to prevent re-entering SMI if event isn't handled */
- smi_write32(0x84, status);
-}
-
-static void process_smi_0x88(void)
-{
- const uint32_t status = smi_read32(0x88);
-
- if (status & SMI_0x88_ACPI_COMMAND) {
- /* Command received via ACPI SMI command port */
- hudson_apmc_smi_handler();
- }
- /* Clear events to prevent re-entering SMI if event isn't handled */
- smi_write32(0x88, status);
-}
-
-static void process_smi_0x8c(void)
-{
- const uint32_t status = smi_read32(0x8c);
-
- /* Clear events to prevent re-entering SMI if event isn't handled */
- smi_write32(0x8c, status);
-}
-
-static void process_smi_0x90(void)
-{
- const uint32_t status = smi_read32(0x90);
-
- /* Clear events to prevent re-entering SMI if event isn't handled */
- smi_write32(0x90, status);
-}
-
-void southbridge_smi_handler(void)
-{
- const uint16_t smi_src = smi_read16(0x94);
-
- if (smi_src & SMI_SOURCE_SCI)
- process_smi_sci();
- if (smi_src & SMI_SOURCE_GPE)
- process_gpe_smi();
- if (smi_src & SMI_SOURCE_0x84)
- process_smi_0x84();
- if (smi_src & SMI_SOURCE_0x88)
- process_smi_0x88();
- if (smi_src & SMI_SOURCE_IRQ_TRAP)
- process_smi_0x8c();
- if (smi_src & SMI_SOURCE_0x90)
- process_smi_0x90();
-}
-
-void southbridge_smi_set_eos(void)
-{
- uint32_t reg = smi_read32(SMI_REG_SMITRIG0);
- reg |= SMITRG0_EOS;
- smi_write32(SMI_REG_SMITRIG0, reg);
-}