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/* $NetBSD: sbobio.c,v 1.25 2021/08/07 16:18:59 thorpej Exp $ */
/*
* Copyright 2000, 2001
* Broadcom Corporation. All rights reserved.
*
* This software is furnished under license and may be used and copied only
* in accordance with the following terms and conditions. Subject to these
* conditions, you may download, copy, install, use, modify and distribute
* modified or unmodified copies of this software in source and/or binary
* form. No title or ownership is transferred hereby.
*
* 1) Any source code used, modified or distributed must reproduce and
* retain this copyright notice and list of conditions as they appear in
* the source file.
*
* 2) No right is granted to use any trade name, trademark, or logo of
* Broadcom Corporation. The "Broadcom Corporation" name may not be
* used to endorse or promote products derived from this software
* without the prior written permission of Broadcom Corporation.
*
* 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
* NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM BE LIABLE
* FOR ANY DAMAGES WHATSOEVER, AND IN PARTICULAR, BROADCOM SHALL NOT BE
* LIABLE FOR DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE), EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: sbobio.c,v 1.25 2021/08/07 16:18:59 thorpej Exp $");
#include <sys/param.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <mips/locore.h>
#include <mips/sibyte/include/sb1250_int.h>
#include <mips/sibyte/include/sb1250_regs.h>
#include <mips/sibyte/include/sb1250_scd.h>
#include <mips/sibyte/include/zbbusvar.h>
#include <mips/sibyte/dev/sbobiovar.h>
#include "locators.h"
static int sbobio_match(device_t, cfdata_t, void *);
static void sbobio_attach(device_t, device_t, void *);
CFATTACH_DECL_NEW(sbobio, 0,
sbobio_match, sbobio_attach, NULL, NULL);
static int sbobio_print(void *, const char *);
static const char *sbobio_device_type_name(enum sbobio_device_type type);
/*
* XXXsimonb:
* DUART register addresses seem to offset by 0x100 for some
* reason I can't fathom so we just can't use A_DUART for the
* address of the DUART. Eg,
* A_DUART_CHANREG(0, 0) = 0x0010060000
* and R_DUART_MODE_REG_1 = 0x100 (first reg in the duart)
* but the 1125/1250 manual says the DUART starts at
* 0x0010060100.
* We define our own R_DUART_REGBASE to R_DUART_MODE_REG_1
* so that we can use a symbolic name to refer to the start
* of the duart register space.
*/
static const struct sbobio_attach_locs sb1250_rev1_sbobio_devs[] = {
{ A_SMB_0,
{ K_INT_SMB_0, -1 },
SBOBIO_DEVTYPE_SMBUS },
{ A_SMB_1,
{ K_INT_SMB_1, -1 },
SBOBIO_DEVTYPE_SMBUS },
{ A_DUART_CHANREG(0, R_DUART_REGBASE),
{ K_INT_UART_0, K_INT_UART_1 },
SBOBIO_DEVTYPE_DUART },
{ A_SER_BASE_0,
{ K_INT_SER_0, -1 },
SBOBIO_DEVTYPE_SYNCSERIAL },
{ A_SER_BASE_1,
{ K_INT_SER_1, -1 },
SBOBIO_DEVTYPE_SYNCSERIAL },
#if 0
{ A_IO_EXT_BASE,
{ -1, -1 },
SBOBIO_DEVTYPE_GBUS },
#endif
{ A_MAC_BASE_0,
{ K_INT_MAC_0, -1 },
SBOBIO_DEVTYPE_MAC },
{ A_MAC_BASE_1,
{ K_INT_MAC_1, -1 },
SBOBIO_DEVTYPE_MAC },
{ A_MAC_BASE_2,
{ K_INT_MAC_2, -1 },
SBOBIO_DEVTYPE_MAC },
};
static const int sb1250_rev1_sbobio_dev_count =
sizeof sb1250_rev1_sbobio_devs / sizeof sb1250_rev1_sbobio_devs[0];
static const struct sbobio_attach_locs sb1250_sbobio_devs[] = {
{ A_SMB_0,
{ K_INT_SMB_0, -1 },
SBOBIO_DEVTYPE_SMBUS },
{ A_SMB_1,
{ K_INT_SMB_1, -1 },
SBOBIO_DEVTYPE_SMBUS },
{ A_DUART_CHANREG(0, R_DUART_REGBASE),
{ K_INT_UART_0, K_INT_UART_1},
SBOBIO_DEVTYPE_DUART },
{ A_SER_BASE_0,
{ K_INT_SER_0, -1 },
SBOBIO_DEVTYPE_SYNCSERIAL },
{ A_SER_BASE_1,
{ K_INT_SER_1, -1 },
SBOBIO_DEVTYPE_SYNCSERIAL },
#if 0
{ A_IO_EXT_BASE,
{ -1, -1 },
SBOBIO_DEVTYPE_GBUS },
#endif
{ A_MAC_BASE_0,
{ K_INT_MAC_0, K_INT_MAC_0_CH1 },
SBOBIO_DEVTYPE_MAC },
{ A_MAC_BASE_1,
{ K_INT_MAC_1, K_INT_MAC_1_CH1 },
SBOBIO_DEVTYPE_MAC },
{ A_MAC_BASE_2,
{ K_INT_MAC_2, K_INT_MAC_2_CH1 },
SBOBIO_DEVTYPE_MAC },
};
static const int sb1250_sbobio_dev_count =
sizeof sb1250_sbobio_devs / sizeof sb1250_sbobio_devs[0];
static const struct sbobio_attach_locs sb112x_sbobio_devs[] = {
{ A_SMB_0,
{ K_INT_SMB_0, -1 },
SBOBIO_DEVTYPE_SMBUS },
{ A_SMB_1,
{ K_INT_SMB_1, -1 },
SBOBIO_DEVTYPE_SMBUS },
{ A_DUART_CHANREG(0, R_DUART_REGBASE),
{ K_INT_UART_0, K_INT_UART_1 },
SBOBIO_DEVTYPE_DUART },
{ A_SER_BASE_0,
{ K_INT_SER_0, -1 },
SBOBIO_DEVTYPE_SYNCSERIAL },
{ A_SER_BASE_1,
{ K_INT_SER_1, -1 },
SBOBIO_DEVTYPE_SYNCSERIAL },
#if 0
{ A_IO_EXT_BASE,
{ -1, -1 },
SBOBIO_DEVTYPE_GBUS },
#endif
{ A_MAC_BASE_0,
{ K_INT_MAC_0, K_INT_MAC_0_CH1 },
SBOBIO_DEVTYPE_MAC },
{ A_MAC_BASE_1,
{ K_INT_MAC_1, K_INT_MAC_1_CH1 },
SBOBIO_DEVTYPE_MAC },
};
static const int sb112x_sbobio_dev_count =
sizeof sb112x_sbobio_devs / sizeof sb112x_sbobio_devs[0];
static int
sbobio_match(device_t parent, cfdata_t match, void *aux)
{
struct zbbus_attach_args *zap = aux;
uint64_t sysrev;
if (zap->za_locs.za_type != ZBBUS_ENTTYPE_OBIO)
return (0);
sysrev = mips3_ld((register_t)MIPS_PHYS_TO_KSEG1(A_SCD_SYSTEM_REVISION));
switch (SYS_SOC_TYPE(sysrev)) {
case K_SYS_SOC_TYPE_BCM1120:
case K_SYS_SOC_TYPE_BCM1125:
case K_SYS_SOC_TYPE_BCM1125H:
case K_SYS_SOC_TYPE_BCM1250:
break;
default:
return (0);
}
return (1);
}
static void
sbobio_attach(device_t parent, device_t self, void *aux)
{
struct sbobio_attach_args sa;
const char *dscr;
const struct sbobio_attach_locs *devs;
uint64_t sysrev;
int i, devcount;
int locs[SBOBIOCF_NLOCS];
sysrev = mips3_ld((register_t)MIPS_PHYS_TO_KSEG1(A_SCD_SYSTEM_REVISION));
switch (SYS_SOC_TYPE(sysrev)) {
case K_SYS_SOC_TYPE_BCM1120:
case K_SYS_SOC_TYPE_BCM1125:
case K_SYS_SOC_TYPE_BCM1125H:
dscr = "BCM112x";
devs = sb112x_sbobio_devs;
devcount = sb112x_sbobio_dev_count;
break;
case K_SYS_SOC_TYPE_BCM1250:
if (G_SYS_REVISION(sysrev) >= K_SYS_REVISION_BCM1250_PASS2) {
dscr = "BCM1250 (rev2 and later)";
devs = sb1250_sbobio_devs;
devcount = sb1250_sbobio_dev_count;
} else {
dscr = "BCM1250 rev1";
devs = sb1250_rev1_sbobio_devs;
devcount = sb1250_rev1_sbobio_dev_count;
}
break;
default:
panic("un-matched in sbobio_attach");
break;
}
aprint_normal(": %s peripherals\n", dscr);
for (i = 0; i < devcount; i++) {
memset(&sa, 0, sizeof sa);
sa.sa_locs = devs[i];
locs[SBOBIOCF_OFFSET] = devs[i].sa_offset;
locs[SBOBIOCF_INTR + 0] = devs[i].sa_intr[0];
locs[SBOBIOCF_INTR + 1] = devs[i].sa_intr[1];
config_found(self, &sa, sbobio_print,
CFARGS(.submatch = config_stdsubmatch,
.locators = locs));
}
return;
}
int
sbobio_print(void *aux, const char *pnp)
{
struct sbobio_attach_args *sap = aux;
int i;
if (pnp)
aprint_normal("%s at %s",
sbobio_device_type_name(sap->sa_locs.sa_type), pnp);
aprint_normal(" offset 0x%lx", sap->sa_locs.sa_offset);
for (i = 0; i < 2; i++) {
if (sap->sa_locs.sa_intr[i] != SBOBIOCF_INTR_DEFAULT)
aprint_normal("%s%d", i == 0 ? " intr " : ",",
sap->sa_locs.sa_intr[i]);
}
return (UNCONF);
}
static const char *
sbobio_device_type_name(enum sbobio_device_type type)
{
switch (type) {
case SBOBIO_DEVTYPE_SMBUS:
return ("sbsmbus");
case SBOBIO_DEVTYPE_DUART:
return ("sbscn");
case SBOBIO_DEVTYPE_SYNCSERIAL:
return ("sbsync");
case SBOBIO_DEVTYPE_GBUS:
return ("sbgbus");
case SBOBIO_DEVTYPE_MAC:
return ("sbmac");
}
panic("sbobio_device_type_name");
return ("panic");
}
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