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@@ -78,9 +78,22 @@ acpi_status acpi_reset(void)
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return_ACPI_STATUS(AE_NOT_EXIST);
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}
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- /* Write the reset value to the reset register */
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+ if (reset_reg->space_id == ACPI_ADR_SPACE_SYSTEM_IO) {
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+ /*
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+ * For I/O space, write directly to the OSL. This bypasses the port
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+ * validation mechanism, which may block a valid write to the reset
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+ * register.
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+ */
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+ status =
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+ acpi_os_write_port((acpi_io_address) reset_reg->address,
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+ acpi_gbl_FADT.reset_value,
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+ reset_reg->bit_width);
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+ } else {
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+ /* Write the reset value to the reset register */
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+
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+ status = acpi_hw_write(acpi_gbl_FADT.reset_value, reset_reg);
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+ }
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- status = acpi_hw_write(acpi_gbl_FADT.reset_value, reset_reg);
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return_ACPI_STATUS(status);
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}
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