avionic design with actual uboot and tooling

submodule of avionic design uboot bootloader and with included tools to
get you started , read readme.md and readme-tk1-loader.md

u-boot/arch/powerpc/include/asm/iopin_8260.h

@@ -0,0 +1,168 @@
+/*
+ * MPC8260 I/O port pin manipulation functions
+ */
+
+#ifndef _ASM_IOPIN_8260_H_
+#define _ASM_IOPIN_8260_H_
+
+#include <linux/types.h>
+#include <asm/immap_8260.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
+
+static __inline__ void
+iopin_set_high(iopin_t *iopin)
+{
+    volatile uint *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdata;
+    datp[iopin->port * 8] |= (1 << (31 - iopin->pin));
+}
+
+static __inline__ void
+iopin_set_low(iopin_t *iopin)
+{
+    volatile uint *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdata;
+    datp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
+}
+
+static __inline__ uint
+iopin_is_high(iopin_t *iopin)
+{
+    volatile uint *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdata;
+    return (datp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
+}
+
+static __inline__ uint
+iopin_is_low(iopin_t *iopin)
+{
+    volatile uint *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdata;
+    return ((datp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
+}
+
+static __inline__ void
+iopin_set_out(iopin_t *iopin)
+{
+    volatile uint *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdira;
+    dirp[iopin->port * 8] |= (1 << (31 - iopin->pin));
+}
+
+static __inline__ void
+iopin_set_in(iopin_t *iopin)
+{
+    volatile uint *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdira;
+    dirp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
+}
+
+static __inline__ uint
+iopin_is_out(iopin_t *iopin)
+{
+    volatile uint *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdira;
+    return (dirp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
+}
+
+static __inline__ uint
+iopin_is_in(iopin_t *iopin)
+{
+    volatile uint *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdira;
+    return ((dirp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
+}
+
+static __inline__ void
+iopin_set_odr(iopin_t *iopin)
+{
+    volatile uint *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_podra;
+    odrp[iopin->port * 8] |= (1 << (31 - iopin->pin));
+}
+
+static __inline__ void
+iopin_set_act(iopin_t *iopin)
+{
+    volatile uint *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_podra;
+    odrp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
+}
+
+static __inline__ uint
+iopin_is_odr(iopin_t *iopin)
+{
+    volatile uint *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_podra;
+    return (odrp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
+}
+
+static __inline__ uint
+iopin_is_act(iopin_t *iopin)
+{
+    volatile uint *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_podra;
+    return ((odrp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
+}
+
+static __inline__ void
+iopin_set_ded(iopin_t *iopin)
+{
+    volatile uint *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_ppara;
+    parp[iopin->port * 8] |= (1 << (31 - iopin->pin));
+}
+
+static __inline__ void
+iopin_set_gen(iopin_t *iopin)
+{
+    volatile uint *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_ppara;
+    parp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
+}
+
+static __inline__ uint
+iopin_is_ded(iopin_t *iopin)
+{
+    volatile uint *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_ppara;
+    return (parp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
+}
+
+static __inline__ uint
+iopin_is_gen(iopin_t *iopin)
+{
+    volatile uint *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_ppara;
+    return ((parp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
+}
+
+static __inline__ void
+iopin_set_opt2(iopin_t *iopin)
+{
+    volatile uint *sorp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_psora;
+    sorp[iopin->port * 8] |= (1 << (31 - iopin->pin));
+}
+
+static __inline__ void
+iopin_set_opt1(iopin_t *iopin)
+{
+    volatile uint *sorp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_psora;
+    sorp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
+}
+
+static __inline__ uint
+iopin_is_opt2(iopin_t *iopin)
+{
+    volatile uint *sorp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_psora;
+    return (sorp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
+}
+
+static __inline__ uint
+iopin_is_opt1(iopin_t *iopin)
+{
+    volatile uint *sorp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_psora;
+    return ((sorp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
+}
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_IOPIN_8260_H_ */