Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / powerpc / cpu / mpc83xx / qe_io.c

diff --git a/qemu/roms/u-boot/arch/powerpc/cpu/mpc83xx/qe_io.c b/qemu/roms/u-boot/arch/powerpc/cpu/mpc83xx/qe_io.c
new file mode 100644 (file)
index 0000000..4fae19c
--- /dev/null
+++ b/qemu/roms/u-boot/arch/powerpc/cpu/mpc83xx/qe_io.c
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2006 Freescale Semiconductor, Inc.
+ *
+ * Dave Liu <daveliu@freescale.com>
+ * based on source code of Shlomi Gridish
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include "common.h"
+#include "asm/errno.h"
+#include "asm/io.h"
+#include "asm/immap_83xx.h"
+
+#define        NUM_OF_PINS     32
+void qe_config_iopin(u8 port, u8 pin, int dir, int open_drain, int assign)
+{
+       u32                     pin_2bit_mask;
+       u32                     pin_2bit_dir;
+       u32                     pin_2bit_assign;
+       u32                     pin_1bit_mask;
+       u32                     tmp_val;
+       volatile immap_t        *im = (volatile immap_t *)CONFIG_SYS_IMMR;
+       volatile qepio83xx_t    *par_io = (volatile qepio83xx_t *)&im->qepio;
+
+       /* Caculate pin location and 2bit mask and dir */
+       pin_2bit_mask = (u32)(0x3 << (NUM_OF_PINS-(pin%(NUM_OF_PINS/2)+1)*2));
+       pin_2bit_dir = (u32)(dir << (NUM_OF_PINS-(pin%(NUM_OF_PINS/2)+1)*2));
+
+       /* Setup the direction */
+       tmp_val = (pin > (NUM_OF_PINS/2) - 1) ? \
+               in_be32(&par_io->ioport[port].dir2) :
+               in_be32(&par_io->ioport[port].dir1);
+
+       if (pin > (NUM_OF_PINS/2) -1) {
+               out_be32(&par_io->ioport[port].dir2, ~pin_2bit_mask & tmp_val);
+               out_be32(&par_io->ioport[port].dir2, pin_2bit_dir | tmp_val);
+       } else {
+               out_be32(&par_io->ioport[port].dir1, ~pin_2bit_mask & tmp_val);
+               out_be32(&par_io->ioport[port].dir1, pin_2bit_dir | tmp_val);
+       }
+
+       /* Calculate pin location for 1bit mask */
+       pin_1bit_mask = (u32)(1 << (NUM_OF_PINS - (pin+1)));
+
+       /* Setup the open drain */
+       tmp_val = in_be32(&par_io->ioport[port].podr);
+       if (open_drain) {
+               out_be32(&par_io->ioport[port].podr, pin_1bit_mask | tmp_val);
+       } else {
+               out_be32(&par_io->ioport[port].podr, ~pin_1bit_mask & tmp_val);
+       }
+
+       /* Setup the assignment */
+       tmp_val = (pin > (NUM_OF_PINS/2) - 1) ?
+               in_be32(&par_io->ioport[port].ppar2):
+               in_be32(&par_io->ioport[port].ppar1);
+       pin_2bit_assign = (u32)(assign
+                               << (NUM_OF_PINS - (pin%(NUM_OF_PINS/2)+1)*2));
+
+       /* Clear and set 2 bits mask */
+       if (pin > (NUM_OF_PINS/2) - 1) {
+               out_be32(&par_io->ioport[port].ppar2, ~pin_2bit_mask & tmp_val);
+               out_be32(&par_io->ioport[port].ppar2, pin_2bit_assign | tmp_val);
+       } else {
+               out_be32(&par_io->ioport[port].ppar1, ~pin_2bit_mask & tmp_val);
+               out_be32(&par_io->ioport[port].ppar1, pin_2bit_assign | tmp_val);
+       }
+}