Add iopset command on mpc8xx

Patch by Daniel Eisenhut, 25 Mar 2005

1 files changed, 395 insertions, 0 deletions

diff --git a/include/asm-ppc/iopin_8xx.h b/include/asm-ppc/iopin_8xx.h
new file mode 100644
index 0000000..1946eb2
--- /dev/null
+++ b/include/asm-ppc/iopin_8xx.h
@@ -0,0 +1,395 @@
+/*
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * MPC8xx I/O port pin manipulation functions
+ * Roughly based on iopin_8260.h
+ */
+
+#ifndef _ASM_IOPIN_8XX_H_
+#define _ASM_IOPIN_8XX_H_
+
+#include <linux/types.h>
+#include <asm/8xx_immap.h>
+
+#ifdef __KERNEL__
+
+typedef struct {
+	u_char port:2;	/* port number (A=0, B=1, C=2, D=3) */
+	u_char pin:5;	/* port pin (0-31) */
+	u_char flag:1;	/* for whatever */
+} iopin_t;
+
+#define IOPIN_PORTA	0
+#define IOPIN_PORTB	1
+#define IOPIN_PORTC	2
+#define IOPIN_PORTD	3
+
+extern __inline__ void
+iopin_set_high(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTA) {
+		volatile ushort *datp = &((immap_t *)CFG_IMMR)->im_ioport.iop_padat;
+		*datp |= (1 << (15 - iopin->pin));
+	} else if (iopin->port == IOPIN_PORTB) {
+		volatile uint *datp = &((immap_t *)CFG_IMMR)->im_cpm.cp_pbdat;
+		*datp |= (1 << (31 - iopin->pin));
+	} else if (iopin->port == IOPIN_PORTC) {
+		volatile ushort *datp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pcdat;
+		*datp |= (1 << (15 - iopin->pin));
+	} else if (iopin->port == IOPIN_PORTD) {
+		volatile ushort *datp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pddat;
+		*datp |= (1 << (15 - iopin->pin));
+	}
+}
+
+extern __inline__ void
+iopin_set_low(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTA) {
+		volatile ushort *datp = &((immap_t *)CFG_IMMR)->im_ioport.iop_padat;
+		*datp &= ~(1 << (15 - iopin->pin));
+	} else if (iopin->port == IOPIN_PORTB) {
+		volatile uint *datp = &((immap_t *)CFG_IMMR)->im_cpm.cp_pbdat;
+		*datp &= ~(1 << (31 - iopin->pin));
+	} else if (iopin->port == IOPIN_PORTC) {
+		volatile ushort *datp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pcdat;
+		*datp &= ~(1 << (15 - iopin->pin));
+	} else if (iopin->port == IOPIN_PORTD) {
+		volatile ushort *datp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pddat;
+		*datp &= ~(1 << (15 - iopin->pin));
+	}
+}
+
+extern __inline__ uint
+iopin_is_high(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTA) {
+		volatile ushort *datp = &((immap_t *)CFG_IMMR)->im_ioport.iop_padat;
+		return (*datp >> (15 - iopin->pin)) & 1;
+	} else if (iopin->port == IOPIN_PORTB) {
+		volatile uint *datp = &((immap_t *)CFG_IMMR)->im_cpm.cp_pbdat;
+		return (*datp >> (31 - iopin->pin)) & 1;
+	} else if (iopin->port == IOPIN_PORTC) {
+		volatile ushort *datp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pcdat;
+		return (*datp >> (15 - iopin->pin)) & 1;
+	} else if (iopin->port == IOPIN_PORTD) {
+		volatile ushort *datp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pddat;
+		return (*datp >> (15 - iopin->pin)) & 1;
+	}
+	return 0;
+}
+
+extern __inline__ uint
+iopin_is_low(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTA) {
+		volatile ushort *datp = &((immap_t *)CFG_IMMR)->im_ioport.iop_padat;
+		return ((*datp >> (15 - iopin->pin)) & 1) ^ 1;
+	} else if (iopin->port == IOPIN_PORTB) {
+		volatile uint *datp = &((immap_t *)CFG_IMMR)->im_cpm.cp_pbdat;
+		return ((*datp >> (31 - iopin->pin)) & 1) ^ 1;
+	} else if (iopin->port == IOPIN_PORTC) {
+		volatile ushort *datp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pcdat;
+		return ((*datp >> (15 - iopin->pin)) & 1) ^ 1;
+	} else if (iopin->port == IOPIN_PORTD) {
+		volatile ushort *datp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pddat;
+		return ((*datp >> (15 - iopin->pin)) & 1) ^ 1;
+	}
+	return 0;
+}
+
+extern __inline__ void
+iopin_set_out(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTA) {
+		volatile ushort *dirp = &((immap_t *)CFG_IMMR)->im_ioport.iop_padir;
+		*dirp |= (1 << (15 - iopin->pin));
+	} else if (iopin->port == IOPIN_PORTB) {
+		volatile uint *dirp = &((immap_t *)CFG_IMMR)->im_cpm.cp_pbdir;
+		*dirp |= (1 << (31 - iopin->pin));
+	} else if (iopin->port == IOPIN_PORTC) {
+		volatile ushort *dirp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pcdir;
+		*dirp |= (1 << (15 - iopin->pin));
+	} else if (iopin->port == IOPIN_PORTD) {
+		volatile ushort *dirp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pddir;
+		*dirp |= (1 << (15 - iopin->pin));
+	}
+}
+
+extern __inline__ void
+iopin_set_in(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTA) {
+		volatile ushort *dirp = &((immap_t *)CFG_IMMR)->im_ioport.iop_padir;
+		*dirp &= ~(1 << (15 - iopin->pin));
+	} else if (iopin->port == IOPIN_PORTB) {
+		volatile uint *dirp = &((immap_t *)CFG_IMMR)->im_cpm.cp_pbdir;
+		*dirp &= ~(1 << (31 - iopin->pin));
+	} else if (iopin->port == IOPIN_PORTC) {
+		volatile ushort *dirp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pcdir;
+		*dirp &= ~(1 << (15 - iopin->pin));
+	} else if (iopin->port == IOPIN_PORTD) {
+		volatile ushort *dirp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pddir;
+		*dirp &= ~(1 << (15 - iopin->pin));
+	}
+}
+
+extern __inline__ uint
+iopin_is_out(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTA) {
+		volatile ushort *dirp = &((immap_t *)CFG_IMMR)->im_ioport.iop_padir;
+		return (*dirp >> (15 - iopin->pin)) & 1;
+	} else if (iopin->port == IOPIN_PORTB) {
+		volatile uint *dirp = &((immap_t *)CFG_IMMR)->im_cpm.cp_pbdir;
+		return (*dirp >> (31 - iopin->pin)) & 1;
+	} else if (iopin->port == IOPIN_PORTC) {
+		volatile ushort *dirp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pcdir;
+		return (*dirp >> (15 - iopin->pin)) & 1;
+	} else if (iopin->port == IOPIN_PORTD) {
+		volatile ushort *dirp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pddir;
+		return (*dirp >> (15 - iopin->pin)) & 1;
+	}
+	return 0;
+}
+
+extern __inline__ uint
+iopin_is_in(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTA) {
+		volatile ushort *dirp = &((immap_t *)CFG_IMMR)->im_ioport.iop_padir;
+		return ((*dirp >> (15 - iopin->pin)) & 1) ^ 1;
+	} else if (iopin->port == IOPIN_PORTB) {
+		volatile uint *dirp = &((immap_t *)CFG_IMMR)->im_cpm.cp_pbdir;
+		return ((*dirp >> (31 - iopin->pin)) & 1) ^ 1;
+	} else if (iopin->port == IOPIN_PORTC) {
+		volatile ushort *dirp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pcdir;
+		return ((*dirp >> (15 - iopin->pin)) & 1) ^ 1;
+	} else if (iopin->port == IOPIN_PORTD) {
+		volatile ushort *dirp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pddir;
+		return ((*dirp >> (15 - iopin->pin)) & 1) ^ 1;
+	}
+	return 0;
+}
+
+extern __inline__ void
+iopin_set_odr(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTA) {
+		volatile ushort *odrp = &((immap_t *)CFG_IMMR)->im_ioport.iop_paodr;
+		*odrp |= (1 << (15 - iopin->pin));
+	} else if (iopin->port == IOPIN_PORTB) {
+		volatile ushort *odrp = &((immap_t *)CFG_IMMR)->im_cpm.cp_pbodr;
+		*odrp |= (1 << (31 - iopin->pin));
+	}
+}
+
+extern __inline__ void
+iopin_set_act(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTA) {
+		volatile ushort *odrp = &((immap_t *)CFG_IMMR)->im_ioport.iop_paodr;
+		*odrp &= ~(1 << (15 - iopin->pin));
+	} else if (iopin->port == IOPIN_PORTB) {
+		volatile ushort *odrp = &((immap_t *)CFG_IMMR)->im_cpm.cp_pbodr;
+		*odrp &= ~(1 << (31 - iopin->pin));
+	}
+}
+
+extern __inline__ uint
+iopin_is_odr(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTA) {
+		volatile ushort *odrp = &((immap_t *)CFG_IMMR)->im_ioport.iop_paodr;
+		return (*odrp >> (15 - iopin->pin)) & 1;
+	} else if (iopin->port == IOPIN_PORTB) {
+		volatile ushort *odrp = &((immap_t *)CFG_IMMR)->im_cpm.cp_pbodr;
+		return (*odrp >> (31 - iopin->pin)) & 1;
+	}
+	return 0;
+}
+
+extern __inline__ uint
+iopin_is_act(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTA) {
+		volatile ushort *odrp = &((immap_t *)CFG_IMMR)->im_ioport.iop_paodr;
+		return ((*odrp >> (15 - iopin->pin)) & 1) ^ 1;
+	} else if (iopin->port == IOPIN_PORTB) {
+		volatile ushort *odrp = &((immap_t *)CFG_IMMR)->im_cpm.cp_pbodr;
+		return ((*odrp >> (31 - iopin->pin)) & 1) ^ 1;
+	}
+	return 0;
+}
+
+extern __inline__ void
+iopin_set_ded(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTA) {
+		volatile ushort *parp = &((immap_t *)CFG_IMMR)->im_ioport.iop_papar;
+		*parp |= (1 << (15 - iopin->pin));
+	} else if (iopin->port == IOPIN_PORTB) {
+		volatile uint *parp = &((immap_t *)CFG_IMMR)->im_cpm.cp_pbpar;
+		*parp |= (1 << (31 - iopin->pin));
+	} else if (iopin->port == IOPIN_PORTC) {
+		volatile ushort *parp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pcpar;
+		*parp |= (1 << (15 - iopin->pin));
+	} else if (iopin->port == IOPIN_PORTD) {
+		volatile ushort *parp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pdpar;
+		*parp |= (1 << (15 - iopin->pin));
+	}
+}
+
+extern __inline__ void
+iopin_set_gen(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTA) {
+		volatile ushort *parp = &((immap_t *)CFG_IMMR)->im_ioport.iop_papar;
+		*parp &= ~(1 << (15 - iopin->pin));
+	} else if (iopin->port == IOPIN_PORTB) {
+		volatile uint *parp = &((immap_t *)CFG_IMMR)->im_cpm.cp_pbpar;
+		*parp &= ~(1 << (31 - iopin->pin));
+	} else if (iopin->port == IOPIN_PORTC) {
+		volatile ushort *parp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pcpar;
+		*parp &= ~(1 << (15 - iopin->pin));
+	} else if (iopin->port == IOPIN_PORTD) {
+		volatile ushort *parp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pdpar;
+		*parp &= ~(1 << (15 - iopin->pin));
+	}
+}
+
+extern __inline__ uint
+iopin_is_ded(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTA) {
+		volatile ushort *parp = &((immap_t *)CFG_IMMR)->im_ioport.iop_papar;
+		return (*parp >> (15 - iopin->pin)) & 1;
+	} else if (iopin->port == IOPIN_PORTB) {
+		volatile uint *parp = &((immap_t *)CFG_IMMR)->im_cpm.cp_pbpar;
+		return (*parp >> (31 - iopin->pin)) & 1;
+	} else if (iopin->port == IOPIN_PORTC) {
+		volatile ushort *parp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pcpar;
+		return (*parp >> (15 - iopin->pin)) & 1;
+	} else if (iopin->port == IOPIN_PORTD) {
+		volatile ushort *parp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pdpar;
+		return (*parp >> (15 - iopin->pin)) & 1;
+	}
+	return 0;
+}
+
+extern __inline__ uint
+iopin_is_gen(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTA) {
+		volatile ushort *parp = &((immap_t *)CFG_IMMR)->im_ioport.iop_papar;
+		return ((*parp >> (15 - iopin->pin)) & 1) ^ 1;
+	} else if (iopin->port == IOPIN_PORTB) {
+		volatile uint *parp = &((immap_t *)CFG_IMMR)->im_cpm.cp_pbpar;
+		return ((*parp >> (31 - iopin->pin)) & 1) ^ 1;
+	} else if (iopin->port == IOPIN_PORTC) {
+		volatile ushort *parp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pcpar;
+		return ((*parp >> (15 - iopin->pin)) & 1) ^ 1;
+	} else if (iopin->port == IOPIN_PORTD) {
+		volatile ushort *parp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pdpar;
+		return ((*parp >> (15 - iopin->pin)) & 1) ^ 1;
+	}
+	return 0;
+}
+
+extern __inline__ void
+iopin_set_opt2(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTC) {
+		volatile ushort *sorp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pcso;
+		*sorp |= (1 << (15 - iopin->pin));
+	}
+}
+
+extern __inline__ void
+iopin_set_opt1(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTC) {
+		volatile ushort *sorp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pcso;
+		*sorp &= ~(1 << (15 - iopin->pin));
+	}
+}
+
+extern __inline__ uint
+iopin_is_opt2(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTC) {
+		volatile ushort *sorp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pcso;
+		return (*sorp >> (15 - iopin->pin)) & 1;
+	}
+	return 0;
+}
+
+extern __inline__ uint
+iopin_is_opt1(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTC) {
+		volatile ushort *sorp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pcso;
+		return ((*sorp >> (15 - iopin->pin)) & 1) ^ 1;
+	}
+	return 0;
+}
+
+extern __inline__ void
+iopin_set_falledge(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTC) {
+		volatile ushort *intp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pcint;
+		*intp |= (1 << (15 - iopin->pin));
+	}
+}
+
+extern __inline__ void
+iopin_set_anyedge(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTC) {
+		volatile ushort *intp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pcint;
+		*intp &= ~(1 << (15 - iopin->pin));
+	}
+}
+
+extern __inline__ uint
+iopin_is_falledge(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTC) {
+		volatile ushort *intp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pcint;
+		return (*intp >> (15 - iopin->pin)) & 1;
+	}
+	return 0;
+}
+
+extern __inline__ uint
+iopin_is_anyedge(iopin_t *iopin)
+{
+	if (iopin->port == IOPIN_PORTC) {
+		volatile ushort *intp = &((immap_t *)CFG_IMMR)->im_ioport.iop_pcint;
+		return ((*intp >> (15 - iopin->pin)) & 1) ^ 1;
+	}
+	return 0;
+}
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_IOPIN_8XX_H_ */