Add CPM2 I/O pin functions for MPC85xx processors

Patch by Murray Jensen, 08 Jul 2005

2 files changed, 149 insertions, 0 deletions

diff --git a/CHANGELOG b/CHANGELOG
index f29b08f..48d30f6 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,9 @@
 Changes since U-Boot 1.1.4:
 ======================================================================
 
+* Add CPM2 I/O pin functions for MPC85xx processors
+  Patch by Murray Jensen, 08 Jul 2005
+
 * Fix compile problem
 
 * Added PCI support for MPC8349ADS board
diff --git a/include/asm-ppc/iopin_85xx.h b/include/asm-ppc/iopin_85xx.h
new file mode 100644
index 0000000..f854df6
--- /dev/null
+++ b/include/asm-ppc/iopin_85xx.h
@@ -0,0 +1,146 @@
+/*
+ * MPC85xx I/O port pin manipulation functions
+ */
+
+#ifndef _ASM_IOPIN_85xx_H_
+#define _ASM_IOPIN_85xx_H_
+
+#include <linux/types.h>
+#include <asm/immap_85xx.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)
+{
+	volatile uint *datp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.pdata;
+	datp[iopin->port * 8] |= (1 << (31 - iopin->pin));
+}
+
+extern __inline__ void iopin_set_low (iopin_t * iopin)
+{
+	volatile uint *datp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.pdata;
+	datp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
+}
+
+extern __inline__ uint iopin_is_high (iopin_t * iopin)
+{
+	volatile uint *datp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.pdata;
+	return (datp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
+}
+
+extern __inline__ uint iopin_is_low (iopin_t * iopin)
+{
+	volatile uint *datp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.pdata;
+	return ((datp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
+}
+
+extern __inline__ void iopin_set_out (iopin_t * iopin)
+{
+	volatile uint *dirp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.pdira;
+	dirp[iopin->port * 8] |= (1 << (31 - iopin->pin));
+}
+
+extern __inline__ void iopin_set_in (iopin_t * iopin)
+{
+	volatile uint *dirp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.pdira;
+	dirp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
+}
+
+extern __inline__ uint iopin_is_out (iopin_t * iopin)
+{
+	volatile uint *dirp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.pdira;
+	return (dirp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
+}
+
+extern __inline__ uint iopin_is_in (iopin_t * iopin)
+{
+	volatile uint *dirp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.pdira;
+	return ((dirp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
+}
+
+extern __inline__ void iopin_set_odr (iopin_t * iopin)
+{
+	volatile uint *odrp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.podra;
+	odrp[iopin->port * 8] |= (1 << (31 - iopin->pin));
+}
+
+extern __inline__ void iopin_set_act (iopin_t * iopin)
+{
+	volatile uint *odrp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.podra;
+	odrp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
+}
+
+extern __inline__ uint iopin_is_odr (iopin_t * iopin)
+{
+	volatile uint *odrp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.podra;
+	return (odrp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
+}
+
+extern __inline__ uint iopin_is_act (iopin_t * iopin)
+{
+	volatile uint *odrp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.podra;
+	return ((odrp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
+}
+
+extern __inline__ void iopin_set_ded (iopin_t * iopin)
+{
+	volatile uint *parp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.ppara;
+	parp[iopin->port * 8] |= (1 << (31 - iopin->pin));
+}
+
+extern __inline__ void iopin_set_gen (iopin_t * iopin)
+{
+	volatile uint *parp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.ppara;
+	parp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
+}
+
+extern __inline__ uint iopin_is_ded (iopin_t * iopin)
+{
+	volatile uint *parp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.ppara;
+	return (parp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
+}
+
+extern __inline__ uint iopin_is_gen (iopin_t * iopin)
+{
+	volatile uint *parp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.ppara;
+	return ((parp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
+}
+
+extern __inline__ void iopin_set_opt2 (iopin_t * iopin)
+{
+	volatile uint *sorp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.psora;
+	sorp[iopin->port * 8] |= (1 << (31 - iopin->pin));
+}
+
+extern __inline__ void iopin_set_opt1 (iopin_t * iopin)
+{
+	volatile uint *sorp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.psora;
+	sorp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
+}
+
+extern __inline__ uint iopin_is_opt2 (iopin_t * iopin)
+{
+	volatile uint *sorp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.psora;
+	return (sorp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
+}
+
+extern __inline__ uint iopin_is_opt1 (iopin_t * iopin)
+{
+	volatile uint *sorp = &((immap_t *) CFG_IMMR)->im_cpm.im_cpm_iop.psora;
+	return ((sorp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
+}
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_IOPIN_85xx_H_ */