u-boot/board/freescale/t208xrdb/cpld.c
Tom Rini 65cc0e2a65 global: Move remaining CONFIG_SYS_* to CFG_SYS_*
The rest of the unmigrated CONFIG symbols in the CONFIG_SYS namespace do
not easily transition to Kconfig. In many cases they likely should come
from the device tree instead. Move these out of CONFIG namespace and in
to CFG namespace.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-12-05 16:06:08 -05:00

71 lines
1.4 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2014 Freescale Semiconductor
*
* Freescale T2080RDB board-specific CPLD controlling supports.
*/
#include <common.h>
#include <command.h>
#include "cpld.h"
u8 cpld_read(unsigned int reg)
{
void *p = (void *)CFG_SYS_CPLD_BASE;
return in_8(p + reg);
}
void cpld_write(unsigned int reg, u8 value)
{
void *p = (void *)CFG_SYS_CPLD_BASE;
out_8(p + reg, value);
}
/* Set the boot bank to the alternate bank */
void cpld_set_altbank(void)
{
u8 reg = CPLD_READ(flash_csr);
reg = (reg & ~CPLD_BANK_SEL_MASK) | CPLD_LBMAP_ALTBANK;
CPLD_WRITE(flash_csr, reg);
CPLD_WRITE(reset_ctl, CPLD_LBMAP_RESET);
}
/* Set the boot bank to the default bank */
void cpld_set_defbank(void)
{
u8 reg = CPLD_READ(flash_csr);
reg = (reg & ~CPLD_BANK_SEL_MASK) | CPLD_LBMAP_DFLTBANK;
CPLD_WRITE(flash_csr, reg);
CPLD_WRITE(reset_ctl, CPLD_LBMAP_RESET);
}
int do_cpld(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
int rc = 0;
if (argc <= 1)
return cmd_usage(cmdtp);
if (strcmp(argv[1], "reset") == 0) {
if (strcmp(argv[2], "altbank") == 0)
cpld_set_altbank();
else
cpld_set_defbank();
} else {
rc = cmd_usage(cmdtp);
}
return rc;
}
U_BOOT_CMD(
cpld, CONFIG_SYS_MAXARGS, 1, do_cpld,
"Reset the board or alternate bank",
"reset: reset to default bank\n"
"cpld reset altbank: reset to alternate bank\n"
);