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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2006 Freescale Semiconductor, Inc.
*
* Dave Liu <daveliu@freescale.com>
* based on source code of Shlomi Gridish
*/
#include <config.h>
#include <linux/errno.h>
#include <asm/io.h>
#include <asm/immap_85xx.h>
#if defined(CONFIG_QE) && !defined(CONFIG_U_QE)
#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 ccsr_gur_t *gur = (void *)(CFG_SYS_MPC85xx_GUTS_ADDR);
volatile par_io_t *par_io = (volatile par_io_t *)
&(gur->qe_par_io);
/* 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[port].cpdir2) :
in_be32(&par_io[port].cpdir1);
if (pin > (NUM_OF_PINS/2) -1) {
out_be32(&par_io[port].cpdir2, ~pin_2bit_mask & tmp_val);
out_be32(&par_io[port].cpdir2, pin_2bit_dir | tmp_val);
} else {
out_be32(&par_io[port].cpdir1, ~pin_2bit_mask & tmp_val);
out_be32(&par_io[port].cpdir1, 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[port].cpodr);
if (open_drain)
out_be32(&par_io[port].cpodr, pin_1bit_mask | tmp_val);
else
out_be32(&par_io[port].cpodr, ~pin_1bit_mask & tmp_val);
/* Setup the assignment */
tmp_val = (pin > (NUM_OF_PINS/2) - 1) ?
in_be32(&par_io[port].cppar2):
in_be32(&par_io[port].cppar1);
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[port].cppar2, ~pin_2bit_mask & tmp_val);
out_be32(&par_io[port].cppar2, pin_2bit_assign | tmp_val);
} else {
out_be32(&par_io[port].cppar1, ~pin_2bit_mask & tmp_val);
out_be32(&par_io[port].cppar1, pin_2bit_assign | tmp_val);
}
}
#endif /* CONFIG_QE */
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