SPDX: Convert all of our single license tags to Linux Kernel style

[platform/kernel/u-boot.git] / arch / x86 / include / asm / i8259.h

diff --git a/arch/x86/include/asm/i8259.h b/arch/x86/include/asm/i8259.h
index bc4033b..b73052a 100644 (file)
--- a/arch/x86/include/asm/i8259.h
+++ b/arch/x86/include/asm/i8259.h
@@ -1,18 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2002
  * Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 /* i8259.h i8259 PIC Registers */
 
 #ifndef _ASMI386_I8259_H_
-#define _ASMI386_I8959_H_       1
-
+#define _ASMI386_I8959_H_
 
 /* PIC I/O mapped registers */
-
 #define IRR            0x0     /* Interrupt Request Register */
 #define ISR            0x0     /* In-Service Register */
 #define ICW1           0x0     /* Initialization Control Word 1 */
@@ -23,7 +20,7 @@
 #define ICW4           0x1     /* Initialization Control Word 4 */
 #define IMR            0x1     /* Interrupt Mask Register */
 
-/* bits for IRR, IMR, ISR and ICW3 */
+/* IRR, IMR, ISR and ICW3 bits */
 #define        IR7             0x80    /* IR7 */
 #define        IR6             0x40    /* IR6 */
 #define        IR5             0x20    /* IR5 */
@@ -33,7 +30,7 @@
 #define        IR1             0x02    /* IR1 */
 #define        IR0             0x01    /* IR0 */
 
-/* bits for SEOI */
+/* SEOI bits */
 #define        SEOI_IR7        0x07    /* IR7 */
 #define        SEOI_IR6        0x06    /* IR6 */
 #define        SEOI_IR5        0x05    /* IR5 */
@@ -49,9 +46,9 @@
 #define OCW2_NOP       0x40    /* NOP */
 #define OCW2_SEOI      0x60    /* Specific EOI */
 #define OCW2_RSET      0x80    /* Rotate/set */
-#define OCW2_REOI      0xA0    /* Rotate on non specific EOI */
-#define OCW2_PSET      0xC0    /* Priority Set Command */
-#define OCW2_RSEOI     0xE0    /* Rotate on specific EOI */
+#define OCW2_REOI      0xa0    /* Rotate on non specific EOI */
+#define OCW2_PSET      0xc0    /* Priority Set Command */
+#define OCW2_RSEOI     0xe0    /* Rotate on specific EOI */
 
 /* ICW1 bits */
 #define ICW1_SEL       0x10    /* Select ICW1 */
@@ -60,15 +57,20 @@
 #define ICW1_SNGL      0x02    /* Single PIC */
 #define ICW1_EICW4     0x01    /* Expect initilization ICW4 */
 
-/* ICW2 is the starting vector number */
-
-/* ICW2 is bit-mask of present slaves for a master device,
- * or the slave ID for a slave device */
+/*
+ * ICW2 is the starting vector number
+ *
+ * ICW2 is bit-mask of present slaves for a master device,
+ * or the slave ID for a slave device
+ */
 
 /* ICW4 bits */
-#define        ICW4_AEOI       0x02    /* Automatic EOI Mode */
+#define ICW4_AEOI      0x02    /* Automatic EOI Mode */
 #define ICW4_PM                0x01    /* Microprocessor Mode */
 
+#define ELCR1          0x4d0
+#define ELCR2          0x4d1
+
 int i8259_init(void);
 
-#endif
+#endif /* _ASMI386_I8959_H_ */