arch/powerpc/cpu/mpc8xx/immap.c - platform/external/u-boot - Gitiles

 // SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2000-2003
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  */

 /*
  * MPC8xx Internal Memory Map Functions
  */

 #include <command.h>
 #include <asm/global_data.h>

 #include <asm/immap_8xx.h>
 #include <asm/cpm_8xx.h>
 #include <asm/iopin_8xx.h>
 #include <asm/io.h>
 #include <asm/ppc.h>

 DECLARE_GLOBAL_DATA_PTR;

 static int do_siuinfo(struct cmd_tbl *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(struct cmd_tbl *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(struct cmd_tbl *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(struct cmd_tbl *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(struct cmd_tbl *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(struct cmd_tbl *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",
 	""
 );
	// SPDX-License-Identifier: GPL-2.0+
	/*
	* (C) Copyright 2000-2003
	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	*/

	/*
	* MPC8xx Internal Memory Map Functions
	*/

	#include <command.h>
	#include <asm/global_data.h>

	#include <asm/immap_8xx.h>
	#include <asm/cpm_8xx.h>
	#include <asm/iopin_8xx.h>
	#include <asm/io.h>
	#include <asm/ppc.h>

	DECLARE_GLOBAL_DATA_PTR;

	static int do_siuinfo(struct cmd_tbl *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(struct cmd_tbl *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(struct cmd_tbl *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(struct cmd_tbl *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(struct cmd_tbl *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(struct cmd_tbl *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",
	""
	);