u-boot/arch/powerpc/cpu/mpc8xx/immap.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

400 lines
8.1 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2000-2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*/
/*
* MPC8xx Internal Memory Map Functions
*/
#include <common.h>
#include <command.h>
#include <asm/immap_8xx.h>
#include <asm/cpm_8xx.h>
#include <asm/iopin_8xx.h>
#include <asm/io.h>
DECLARE_GLOBAL_DATA_PTR;
static int do_siuinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
sysconf8xx_t __iomem *sc = &immap->im_siu_conf;
printf("SIUMCR= %08x SYPCR = %08x\n",
in_be32(&sc->sc_siumcr), in_be32(&sc->sc_sypcr));
printf("SWT = %08x\n", in_be32(&sc->sc_swt));
printf("SIPEND= %08x SIMASK= %08x\n",
in_be32(&sc->sc_sipend), in_be32(&sc->sc_simask));
printf("SIEL = %08x SIVEC = %08x\n",
in_be32(&sc->sc_siel), in_be32(&sc->sc_sivec));
printf("TESR = %08x SDCR = %08x\n",
in_be32(&sc->sc_tesr), in_be32(&sc->sc_sdcr));
return 0;
}
static int do_memcinfo(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
memctl8xx_t __iomem *memctl = &immap->im_memctl;
int nbanks = 8;
uint __iomem *p = &memctl->memc_br0;
int i;
for (i = 0; i < nbanks; i++, p += 2)
printf("BR%-2d = %08x OR%-2d = %08x\n",
i, in_be32(p), i, in_be32(p + 1));
printf("MAR = %08x", in_be32(&memctl->memc_mar));
printf(" MCR = %08x\n", in_be32(&memctl->memc_mcr));
printf("MAMR = %08x MBMR = %08x",
in_be32(&memctl->memc_mamr), in_be32(&memctl->memc_mbmr));
printf("\nMSTAT = %04x\n", in_be16(&memctl->memc_mstat));
printf("MPTPR = %04x MDR = %08x\n",
in_be16(&memctl->memc_mptpr), in_be32(&memctl->memc_mdr));
return 0;
}
static int do_carinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
car8xx_t __iomem *car = &immap->im_clkrst;
printf("SCCR = %08x\n", in_be32(&car->car_sccr));
printf("PLPRCR= %08x\n", in_be32(&car->car_plprcr));
printf("RSR = %08x\n", in_be32(&car->car_rsr));
return 0;
}
static int counter;
static void header(void)
{
char *data = "\
-------------------------------- --------------------------------\
00000000001111111111222222222233 00000000001111111111222222222233\
01234567890123456789012345678901 01234567890123456789012345678901\
-------------------------------- --------------------------------\
";
int i;
if (counter % 2)
putc('\n');
counter = 0;
for (i = 0; i < 4; i++, data += 79)
printf("%.79s\n", data);
}
static void binary(char *label, uint value, int nbits)
{
uint mask = 1 << (nbits - 1);
int i, second = (counter++ % 2);
if (second)
putc(' ');
puts(label);
for (i = 32 + 1; i != nbits; i--)
putc(' ');
while (mask != 0) {
if (value & mask)
putc('1');
else
putc('0');
mask >>= 1;
}
if (second)
putc('\n');
}
#define PA_NBITS 16
#define PA_NB_ODR 8
#define PB_NBITS 18
#define PB_NB_ODR 16
#define PC_NBITS 12
#define PD_NBITS 13
static int do_iopinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
iop8xx_t __iomem *iop = &immap->im_ioport;
ushort __iomem *l, *r;
uint __iomem *R;
counter = 0;
header();
/*
* Ports A & B
*/
l = &iop->iop_padir;
R = &immap->im_cpm.cp_pbdir;
binary("PA_DIR", in_be16(l++), PA_NBITS);
binary("PB_DIR", in_be32(R++), PB_NBITS);
binary("PA_PAR", in_be16(l++), PA_NBITS);
binary("PB_PAR", in_be32(R++), PB_NBITS);
binary("PA_ODR", in_be16(l++), PA_NB_ODR);
binary("PB_ODR", in_be32(R++), PB_NB_ODR);
binary("PA_DAT", in_be16(l++), PA_NBITS);
binary("PB_DAT", in_be32(R++), PB_NBITS);
header();
/*
* Ports C & D
*/
l = &iop->iop_pcdir;
r = &iop->iop_pddir;
binary("PC_DIR", in_be16(l++), PC_NBITS);
binary("PD_DIR", in_be16(r++), PD_NBITS);
binary("PC_PAR", in_be16(l++), PC_NBITS);
binary("PD_PAR", in_be16(r++), PD_NBITS);
binary("PC_SO ", in_be16(l++), PC_NBITS);
binary(" ", 0, 0);
r++;
binary("PC_DAT", in_be16(l++), PC_NBITS);
binary("PD_DAT", in_be16(r++), PD_NBITS);
binary("PC_INT", in_be16(l++), PC_NBITS);
header();
return 0;
}
/*
* set the io pins
* this needs a clean up for smaller tighter code
* use *uint and set the address based on cmd + port
*/
static int do_iopset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
uint rcode = 0;
iopin_t iopin;
static uint port;
static uint pin;
static uint value;
static enum {
DIR,
PAR,
SOR,
ODR,
DAT,
INT
} cmd = DAT;
if (argc != 5) {
puts("iopset PORT PIN CMD VALUE\n");
return 1;
}
port = argv[1][0] - 'A';
if (port > 3)
port -= 0x20;
if (port > 3)
rcode = 1;
pin = simple_strtol(argv[2], NULL, 10);
if (pin > 31)
rcode = 1;
switch (argv[3][0]) {
case 'd':
if (argv[3][1] == 'a')
cmd = DAT;
else if (argv[3][1] == 'i')
cmd = DIR;
else
rcode = 1;
break;
case 'p':
cmd = PAR;
break;
case 'o':
cmd = ODR;
break;
case 's':
cmd = SOR;
break;
case 'i':
cmd = INT;
break;
default:
printf("iopset: unknown command %s\n", argv[3]);
rcode = 1;
}
if (argv[4][0] == '1')
value = 1;
else if (argv[4][0] == '0')
value = 0;
else
rcode = 1;
if (rcode == 0) {
iopin.port = port;
iopin.pin = pin;
iopin.flag = 0;
switch (cmd) {
case DIR:
if (value)
iopin_set_out(&iopin);
else
iopin_set_in(&iopin);
break;
case PAR:
if (value)
iopin_set_ded(&iopin);
else
iopin_set_gen(&iopin);
break;
case SOR:
if (value)
iopin_set_opt2(&iopin);
else
iopin_set_opt1(&iopin);
break;
case ODR:
if (value)
iopin_set_odr(&iopin);
else
iopin_set_act(&iopin);
break;
case DAT:
if (value)
iopin_set_high(&iopin);
else
iopin_set_low(&iopin);
break;
case INT:
if (value)
iopin_set_falledge(&iopin);
else
iopin_set_anyedge(&iopin);
break;
}
}
return rcode;
}
static void prbrg(int n, uint val)
{
uint extc = (val >> 14) & 3;
uint cd = (val & CPM_BRG_CD_MASK) >> 1;
uint div16 = (val & CPM_BRG_DIV16) != 0;
ulong clock = gd->cpu_clk;
printf("BRG%d:", n);
if (val & CPM_BRG_RST)
puts(" RESET");
else
puts(" ");
if (val & CPM_BRG_EN)
puts(" ENABLED");
else
puts(" DISABLED");
printf(" EXTC=%d", extc);
if (val & CPM_BRG_ATB)
puts(" ATB");
else
puts(" ");
printf(" DIVIDER=%4d", cd);
if (extc == 0 && cd != 0) {
uint baudrate;
if (div16)
baudrate = (clock / 16) / (cd + 1);
else
baudrate = clock / (cd + 1);
printf("=%6d bps", baudrate);
} else {
puts(" ");
}
if (val & CPM_BRG_DIV16)
puts(" DIV16");
else
puts(" ");
putc('\n');
}
static int do_brginfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
cpm8xx_t __iomem *cp = &immap->im_cpm;
uint __iomem *p = &cp->cp_brgc1;
int i = 1;
while (i <= 4)
prbrg(i++, in_be32(p++));
return 0;
}
#ifdef CONFIG_CMD_REGINFO
void print_reginfo(void)
{
immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
sit8xx_t __iomem *timers = &immap->im_sit;
printf("\nSystem Configuration registers\n"
"\tIMMR\t0x%08X\n", get_immr());
do_siuinfo(NULL, 0, 0, NULL);
printf("Memory Controller Registers\n");
do_memcinfo(NULL, 0, 0, NULL);
printf("\nSystem Integration Timers\n");
printf("\tTBSCR\t0x%04X\tRTCSC\t0x%04X\n",
in_be16(&timers->sit_tbscr), in_be16(&timers->sit_rtcsc));
printf("\tPISCR\t0x%04X\n", in_be16(&timers->sit_piscr));
}
#endif
/***************************************************/
U_BOOT_CMD(
siuinfo, 1, 1, do_siuinfo,
"print System Interface Unit (SIU) registers",
""
);
U_BOOT_CMD(
memcinfo, 1, 1, do_memcinfo,
"print Memory Controller registers",
""
);
U_BOOT_CMD(
carinfo, 1, 1, do_carinfo,
"print Clocks and Reset registers",
""
);
U_BOOT_CMD(
iopinfo, 1, 1, do_iopinfo,
"print I/O Port registers",
""
);
U_BOOT_CMD(
iopset, 5, 0, do_iopset,
"set I/O Port registers",
"PORT PIN CMD VALUE\nPORT: A-D, PIN: 0-31, CMD: [dat|dir|odr|sor], VALUE: 0|1"
);
U_BOOT_CMD(
brginfo, 1, 1, do_brginfo,
"print Baud Rate Generator (BRG) registers",
""
);