svn commit: r304859 - in head/sys: dev/bhnd dev/bhnd/bcma dev/bhnd/cores/chipc mips/broadcom
Landon J. Fuller
landonf at FreeBSD.org
Fri Aug 26 20:16:04 UTC 2016
Author: landonf
Date: Fri Aug 26 20:16:02 2016
New Revision: 304859
URL: https://svnweb.freebsd.org/changeset/base/304859
Log:
[mips/broadcom] Generic platform_reset() support.
This adds support for performing platform_reset() on all supported
devices, using early boot enumeration of chipc capabilities and
available cores.
- Added Broadcom-specific MIPS CP0 register definitions used by
BCM4785-specific reset handling.
- Added a bcm_platform structure for tracking chipc/pmu/cfe platform
data.
- Extended the BCMA EROM API to support early boot lookup of core info
(including port/region mappings).
- Extended platform_reset() to support PMU, PMU+AOB, and non-PMU
devices.
Reviewed by: mizhka
Approved by: adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D7539
Added:
head/sys/mips/broadcom/bcm_bcma.c (contents, props changed)
head/sys/mips/broadcom/bcm_machdep.h (contents, props changed)
head/sys/mips/broadcom/bcm_mips_exts.h (contents, props changed)
head/sys/mips/broadcom/bcm_siba.c (contents, props changed)
Modified:
head/sys/dev/bhnd/bcma/bcma_erom.c
head/sys/dev/bhnd/bcma/bcma_eromvar.h
head/sys/dev/bhnd/bhnd_ids.h
head/sys/dev/bhnd/bhnd_subr.c
head/sys/dev/bhnd/cores/chipc/chipcreg.h
head/sys/mips/broadcom/bcm_machdep.c
head/sys/mips/broadcom/bcm_socinfo.c
head/sys/mips/broadcom/bcm_socinfo.h
head/sys/mips/broadcom/files.broadcom
head/sys/mips/broadcom/uart_cpu_chipc.c
Modified: head/sys/dev/bhnd/bcma/bcma_erom.c
==============================================================================
--- head/sys/dev/bhnd/bcma/bcma_erom.c Fri Aug 26 20:15:22 2016 (r304858)
+++ head/sys/dev/bhnd/bcma/bcma_erom.c Fri Aug 26 20:16:02 2016 (r304859)
@@ -65,10 +65,18 @@ static int erom_skip_mport(struct bcma
static int erom_skip_sport_region(struct bcma_erom *erom);
static int erom_seek_next(struct bcma_erom *erom, uint8_t etype);
+static int erom_region_to_port_type(struct bcma_erom *erom,
+ uint8_t region_type, bhnd_port_type *port_type);
-#define EROM_LOG(erom, fmt, ...) \
- device_printf(erom->dev, "erom[0x%llx]: " fmt, \
- (unsigned long long) (erom->offset), ##__VA_ARGS__);
+#define EROM_LOG(erom, fmt, ...) do { \
+ if (erom->dev != NULL) { \
+ device_printf(erom->dev, "erom[0x%llx]: " fmt, \
+ (unsigned long long) (erom->offset), ##__VA_ARGS__);\
+ } else { \
+ printf("erom[0x%llx]: " fmt, \
+ (unsigned long long) (erom->offset), ##__VA_ARGS__);\
+ } \
+} while(0)
/**
* Open an EROM table for reading.
@@ -82,11 +90,37 @@ static int erom_seek_next(struct bcma_
* @retval non-zero if the erom table could not be opened.
*/
int
-bcma_erom_open(struct bcma_erom *erom, struct resource *r, bus_size_t offset)
+bcma_erom_open(struct bcma_erom *erom, struct resource *r,
+ bus_size_t offset)
+{
+ return (bhnd_erom_bus_space_open(erom, rman_get_device(r),
+ rman_get_bustag(r), rman_get_bushandle(r), offset));
+
+ return (0);
+}
+
+/**
+ * Open an EROM table for reading using the provided bus space tag and
+ * handle.
+ *
+ * @param[out] erom On success, will be populated with a valid EROM
+ * read state.
+ * @param dev The owning device, or NULL if none.
+ * @param bst EROM table bus space tag.
+ * @param bsh EROM table bus space handle.
+ * @param offset Offset of the EROM core from @p resource.
+ *
+ * @retval 0 success
+ * @retval non-zero if the erom table could not be opened.
+ */
+int
+bhnd_erom_bus_space_open(struct bcma_erom *erom, device_t dev,
+ bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t offset)
{
/* Initialize the EROM reader */
- erom->dev = rman_get_device(r);
- erom->r = r;
+ erom->dev = dev;
+ erom->bst = bst;
+ erom->bsh = bsh;
erom->start = offset + BCMA_EROM_TABLE_START;
erom->offset = 0;
@@ -145,7 +179,8 @@ bcma_erom_peek32(struct bcma_erom *erom,
return (EINVAL);
}
- *entry = bus_read_4(erom->r, erom->start + erom->offset);
+ *entry = bus_space_read_4(erom->bst, erom->bsh,
+ erom->start + erom->offset);
return (0);
}
@@ -300,6 +335,20 @@ bcma_erom_reset(struct bcma_erom *erom)
}
/**
+ * Seek to the next core entry.
+ *
+ * @param erom EROM read state.
+ * @retval 0 success
+ * @retval ENOENT The end of the EROM table was reached.
+ * @retval non-zero Reading or parsing failed.
+ */
+int
+bcma_erom_seek_next_core(struct bcma_erom *erom)
+{
+ return (erom_seek_next(erom, BCMA_EROM_ENTRY_TYPE_CORE));
+}
+
+/**
* Seek to the requested core entry.
*
* @param erom EROM read state.
@@ -387,6 +436,153 @@ bcma_erom_parse_core(struct bcma_erom *e
}
/**
+ * Seek to a region record associated with @p core_index.
+ *
+ * @param erom EROM read state.
+ * @param core_index The index of the core record to be searched.
+ * @param port_type The port type to search for.
+ * @param port_num The port number to search for.
+ * @param region_num The region number to search for.
+ * @retval 0 success
+ * @retval ENOENT The requested region was not found.
+ * @retval non-zero Reading or parsing failed.
+ */
+int
+bcma_erom_seek_core_sport_region(struct bcma_erom *erom, u_int core_index,
+ bhnd_port_type port_type, u_int port_num, u_int region_num)
+{
+ struct bcma_erom_core core;
+ uint32_t entry;
+ uint8_t region_port, region_type;
+ bool found;
+ int error;
+
+ if ((error = bcma_erom_seek_core_index(erom, core_index)))
+ return (error);
+
+ if ((error = bcma_erom_parse_core(erom, &core)))
+ return (error);
+
+ /* Skip master ports */
+ for (u_long i = 0; i < core.num_mport; i++) {
+ if ((error = erom_skip_mport(erom)))
+ return (error);
+ }
+
+ /* Seek to the region block for the given port type */
+ found = false;
+ while (1) {
+ bhnd_port_type p_type;
+ uint8_t r_type;
+
+ if ((error = bcma_erom_peek32(erom, &entry)))
+ return (error);
+
+ if (!BCMA_EROM_ENTRY_IS(entry, REGION))
+ return (ENOENT);
+
+ /* Expected region type? */
+ r_type = BCMA_EROM_GET_ATTR(entry, REGION_TYPE);
+ if ((error = erom_region_to_port_type(erom, r_type, &p_type)))
+ return (error);
+
+ if (p_type == port_type) {
+ found = true;
+ break;
+ }
+
+ /* Skip to next entry */
+ if ((error = erom_skip_sport_region(erom)))
+ return (error);
+ }
+
+ if (!found)
+ return (ENOENT);
+
+ /* Found the appropriate port type block; now find the region records
+ * for the given port number */
+ found = false;
+ for (u_int i = 0; i <= port_num; i++) {
+ bhnd_port_type p_type;
+
+ if ((error = bcma_erom_peek32(erom, &entry)))
+ return (error);
+
+ if (!BCMA_EROM_ENTRY_IS(entry, REGION))
+ return (ENOENT);
+
+ /* Fetch the type/port of the first region entry */
+ region_type = BCMA_EROM_GET_ATTR(entry, REGION_TYPE);
+ region_port = BCMA_EROM_GET_ATTR(entry, REGION_PORT);
+
+ /* Have we found the region entries for the desired port? */
+ if (i == port_num) {
+ error = erom_region_to_port_type(erom, region_type,
+ &p_type);
+ if (error)
+ return (error);
+
+ if (p_type == port_type)
+ found = true;
+
+ break;
+ }
+
+ /* Otherwise, seek to next block of region records */
+ while (1) {
+ uint8_t next_type, next_port;
+
+ if ((error = erom_skip_sport_region(erom)))
+ return (error);
+
+ if ((error = bcma_erom_peek32(erom, &entry)))
+ return (error);
+
+ if (!BCMA_EROM_ENTRY_IS(entry, REGION))
+ return (ENOENT);
+
+ next_type = BCMA_EROM_GET_ATTR(entry, REGION_TYPE);
+ next_port = BCMA_EROM_GET_ATTR(entry, REGION_PORT);
+
+ if (next_type != region_type ||
+ next_port != region_port)
+ break;
+ }
+ }
+
+ if (!found)
+ return (ENOENT);
+
+ /* Finally, search for the requested region number */
+ for (u_int i = 0; i <= region_num; i++) {
+ uint8_t next_port, next_type;
+
+ if ((error = bcma_erom_peek32(erom, &entry)))
+ return (error);
+
+ if (!BCMA_EROM_ENTRY_IS(entry, REGION))
+ return (ENOENT);
+
+ /* Check for the end of the region block */
+ next_type = BCMA_EROM_GET_ATTR(entry, REGION_TYPE);
+ next_port = BCMA_EROM_GET_ATTR(entry, REGION_PORT);
+
+ if (next_type != region_type ||
+ next_port != region_port)
+ break;
+
+ if (i == region_num)
+ return (0);
+
+ if ((error = erom_skip_sport_region(erom)))
+ return (error);
+ }
+
+ /* Not found */
+ return (ENOENT);
+}
+
+/**
* Read the next master port descriptor from the EROM table.
*
* @param erom EROM read state.
@@ -492,6 +688,25 @@ bcma_erom_parse_sport_region(struct bcma
}
/**
+ * Convert a bcma_erom_core record to its bhnd_core_info representation.
+ *
+ * @param core EROM core record to convert.
+ * @param core_idx The core index of @p core.
+ * @param core_unit The core unit of @p core.
+ * @param[out] info The populated bhnd_core_info representation.
+ */
+void
+bcma_erom_to_core_info(const struct bcma_erom_core *core, u_int core_idx,
+ int core_unit, struct bhnd_core_info *info)
+{
+ info->vendor = core->vendor;
+ info->device = core->device;
+ info->hwrev = core->rev;
+ info->core_idx = core_idx;
+ info->unit = core_unit;
+}
+
+/**
* Parse all cores descriptors from @p erom and return the array
* in @p cores and the count in @p num_cores. The current EROM read position
* is left unmodified.
@@ -545,7 +760,8 @@ bcma_erom_get_core_info(struct bcma_erom
/* Parse all core descriptors */
bcma_erom_reset(erom);
for (u_int i = 0; i < count; i++) {
- struct bcma_erom_core core;
+ struct bcma_erom_core core;
+ int unit;
/* Parse the core */
error = erom_seek_next(erom, BCMA_EROM_ENTRY_TYPE_CORE);
@@ -555,20 +771,17 @@ bcma_erom_get_core_info(struct bcma_erom
error = bcma_erom_parse_core(erom, &core);
if (error)
goto cleanup;
-
- /* Convert to a bhnd info record */
- buffer[i].vendor = core.vendor;
- buffer[i].device = core.device;
- buffer[i].hwrev = core.rev;
- buffer[i].core_idx = i;
- buffer[i].unit = 0;
/* Determine the unit number */
+ unit = 0;
for (u_int j = 0; j < i; j++) {
if (buffer[i].vendor == buffer[j].vendor &&
buffer[i].device == buffer[j].device)
- buffer[i].unit++;
+ unit++;
}
+
+ /* Convert to a bhnd info record */
+ bcma_erom_to_core_info(&core, i, unit, &buffer[i]);
}
cleanup:
@@ -585,6 +798,33 @@ cleanup:
return (error);
}
+/**
+ * Map an EROM region type to its corresponding port type.
+ *
+ * @param region_type Region type value.
+ * @param[out] port_type On success, the corresponding port type.
+ */
+static int
+erom_region_to_port_type(struct bcma_erom *erom, uint8_t region_type,
+ bhnd_port_type *port_type)
+{
+ switch (region_type) {
+ case BCMA_EROM_REGION_TYPE_DEVICE:
+ *port_type = BHND_PORT_DEVICE;
+ return (0);
+ case BCMA_EROM_REGION_TYPE_BRIDGE:
+ *port_type = BHND_PORT_BRIDGE;
+ return (0);
+ case BCMA_EROM_REGION_TYPE_MWRAP:
+ case BCMA_EROM_REGION_TYPE_SWRAP:
+ *port_type = BHND_PORT_AGENT;
+ return (0);
+ default:
+ EROM_LOG(erom, "unsupported region type %hhx\n",
+ region_type);
+ return (EINVAL);
+ }
+}
/**
* Register all MMIO region descriptors for the given slave port.
@@ -608,24 +848,10 @@ erom_corecfg_fill_port_regions(struct bc
bhnd_port_type port_type;
error = 0;
-
+
/* Determine the port type for this region type. */
- switch (region_type) {
- case BCMA_EROM_REGION_TYPE_DEVICE:
- port_type = BHND_PORT_DEVICE;
- break;
- case BCMA_EROM_REGION_TYPE_BRIDGE:
- port_type = BHND_PORT_BRIDGE;
- break;
- case BCMA_EROM_REGION_TYPE_MWRAP:
- case BCMA_EROM_REGION_TYPE_SWRAP:
- port_type = BHND_PORT_AGENT;
- break;
- default:
- EROM_LOG(erom, "unsupported region type %hhx\n",
- region_type);
- return (EINVAL);
- }
+ if ((error = erom_region_to_port_type(erom, region_type, &port_type)))
+ return (error);
/* Fetch the list to be populated */
sports = bcma_corecfg_get_port_list(corecfg, port_type);
Modified: head/sys/dev/bhnd/bcma/bcma_eromvar.h
==============================================================================
--- head/sys/dev/bhnd/bcma/bcma_eromvar.h Fri Aug 26 20:15:22 2016 (r304858)
+++ head/sys/dev/bhnd/bcma/bcma_eromvar.h Fri Aug 26 20:16:02 2016 (r304859)
@@ -40,10 +40,11 @@
* EROM read context.
*/
struct bcma_erom {
- device_t dev; /**< EROM parent device */
- struct resource *r; /**< EROM table resource. */
- bus_size_t start; /**< EROM table offset */
- bus_size_t offset; /**< current read offset */
+ device_t dev; /**< EROM parent device */
+ bus_space_tag_t bst; /**< EROM table bus space */
+ bus_space_handle_t bsh; /**< EROM table bus handle */
+ bus_size_t start; /**< EROM table offset */
+ bus_size_t offset; /**< current read offset */
};
/** EROM core descriptor. */
@@ -78,22 +79,34 @@ struct bcma_erom_sport_region {
int bcma_erom_open(struct bcma_erom *erom, struct resource *r,
bus_size_t offset);
+int bhnd_erom_bus_space_open(struct bcma_erom *erom, device_t owner,
+ bus_space_tag_t bst, bus_space_handle_t bsh,
+ bus_size_t offset);
+
int bcma_erom_peek32(struct bcma_erom *erom, uint32_t *entry);
bus_size_t bcma_erom_tell(struct bcma_erom *erom);
void bcma_erom_seek(struct bcma_erom *erom, bus_size_t offset);
void bcma_erom_reset(struct bcma_erom *erom);
+int bcma_erom_seek_next_core(struct bcma_erom *erom);
int bcma_erom_seek_core_index(struct bcma_erom *erom,
u_int core_index);
int bcma_erom_parse_core(struct bcma_erom *erom,
struct bcma_erom_core *core);
+int bcma_erom_seek_core_sport_region(struct bcma_erom *erom,
+ u_int core_index, bhnd_port_type port_type, u_int port_num,
+ u_int region_num);
+
int bcma_erom_parse_mport(struct bcma_erom *erom,
struct bcma_erom_mport *mport);
int bcma_erom_parse_sport_region(struct bcma_erom *erom,
struct bcma_erom_sport_region *region);
+void bcma_erom_to_core_info(const struct bcma_erom_core *core,
+ u_int core_idx, int core_unit, struct bhnd_core_info *info);
+
int bcma_erom_get_core_info(struct bcma_erom *erom,
struct bhnd_core_info **cores,
u_int *num_cores);
Modified: head/sys/dev/bhnd/bhnd_ids.h
==============================================================================
--- head/sys/dev/bhnd/bhnd_ids.h Fri Aug 26 20:15:22 2016 (r304858)
+++ head/sys/dev/bhnd/bhnd_ids.h Fri Aug 26 20:16:02 2016 (r304859)
@@ -535,6 +535,12 @@
#define BHND_CHIPTYPE_UBUS 2 /**< ubus interconnect found in bcm63xx devices */
#define BHND_CHIPTYPE_BCMA_ALT 3 /**< bcma(4) interconnect */
+/** Evaluates to true if @p _type uses a BCMA EROM table */
+#define BHND_CHIPTYPE_HAS_EROM(_type) \
+ ((_type) == BHND_CHIPTYPE_BCMA || \
+ (_type) == BHND_CHIPTYPE_BCMA_ALT || \
+ (_type) == BHND_CHIPTYPE_UBUS)
+
/* Boardflags */
#define BHND_BFL_BTC2WIRE 0x00000001 /* old 2wire Bluetooth coexistence, OBSOLETE */
#define BHND_BFL_BTCOEX 0x00000001 /* Board supports BTCOEX */
Modified: head/sys/dev/bhnd/bhnd_subr.c
==============================================================================
--- head/sys/dev/bhnd/bhnd_subr.c Fri Aug 26 20:15:22 2016 (r304858)
+++ head/sys/dev/bhnd/bhnd_subr.c Fri Aug 26 20:16:02 2016 (r304859)
@@ -834,12 +834,16 @@ bhnd_read_chipid(device_t dev, struct re
bus_size_t chipc_offset, struct bhnd_chipid *result)
{
struct resource *res;
+ bhnd_addr_t enum_addr;
uint32_t reg;
+ uint8_t chip_type;
int error, rid, rtype;
- /* Allocate the ChipCommon window resource and fetch the chipid data */
rid = rs->rid;
rtype = rs->type;
+ error = 0;
+
+ /* Allocate the ChipCommon window resource and fetch the chipid data */
res = bus_alloc_resource_any(dev, rtype, &rid, RF_ACTIVE);
if (res == NULL) {
device_printf(dev,
@@ -849,30 +853,23 @@ bhnd_read_chipid(device_t dev, struct re
/* Fetch the basic chip info */
reg = bus_read_4(res, chipc_offset + CHIPC_ID);
- *result = bhnd_parse_chipid(reg, 0x0);
+ chip_type = CHIPC_GET_BITS(reg, CHIPC_ID_BUS);
- /* Fetch the enum base address */
- error = 0;
- switch (result->chip_type) {
- case BHND_CHIPTYPE_SIBA:
- result->enum_addr = BHND_DEFAULT_CHIPC_ADDR;
- break;
- case BHND_CHIPTYPE_BCMA:
- case BHND_CHIPTYPE_BCMA_ALT:
- result->enum_addr = bus_read_4(res, chipc_offset +
- CHIPC_EROMPTR);
- break;
- case BHND_CHIPTYPE_UBUS:
- device_printf(dev, "unsupported ubus/bcm63xx chip type");
- error = ENODEV;
- goto cleanup;
- default:
- device_printf(dev, "unknown chip type %hhu\n",
- result->chip_type);
+ /* Fetch the EROMPTR */
+ if (BHND_CHIPTYPE_HAS_EROM(chip_type)) {
+ enum_addr = bus_read_4(res, chipc_offset + CHIPC_EROMPTR);
+ } else if (chip_type == BHND_CHIPTYPE_SIBA) {
+ /* siba(4) uses the ChipCommon base address as the enumeration
+ * address */
+ enum_addr = rman_get_start(res) + chipc_offset;
+ } else {
+ device_printf(dev, "unknown chip type %hhu\n", chip_type);
error = ENODEV;
goto cleanup;
}
+ *result = bhnd_parse_chipid(reg, enum_addr);
+
cleanup:
/* Clean up */
bus_release_resource(dev, rtype, rid, res);
Modified: head/sys/dev/bhnd/cores/chipc/chipcreg.h
==============================================================================
--- head/sys/dev/bhnd/cores/chipc/chipcreg.h Fri Aug 26 20:15:22 2016 (r304858)
+++ head/sys/dev/bhnd/cores/chipc/chipcreg.h Fri Aug 26 20:16:02 2016 (r304859)
@@ -35,6 +35,16 @@
* the core count via the chip identification register. */
#define CHIPC_NCORES_MIN_HWREV(hwrev) ((hwrev) == 4 || (hwrev) >= 6)
+/** Evaluates to true if the given ChipCommon core revision supports
+ * the CHIPC_CAPABILITIES_EXT register */
+#define CHIPC_HWREV_HAS_CAP_EXT(hwrev) ((hwrev) >= 35)
+
+/** Evaluates to true if the chipcommon core (determined from the provided
+ * @p _chipid (CHIPC_ID) register value) provides a pointer to the enumeration
+ * table via CHIPC_EROMPTR */
+#define CHIPC_HAS_EROMPTR(_chipid) \
+ (CHIPC_GET_BITS((_chipid), CHIPC_ID_BUS) != BHND_CHIPTYPE_SIBA)
+
#define CHIPC_GET_FLAG(_value, _flag) (((_value) & _flag) != 0)
#define CHIPC_GET_BITS(_value, _field) \
((_value & _field ## _MASK) >> _field ## _SHIFT)
Added: head/sys/mips/broadcom/bcm_bcma.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/mips/broadcom/bcm_bcma.c Fri Aug 26 20:16:02 2016 (r304859)
@@ -0,0 +1,100 @@
+/*-
+ * Copyright (c) 2016 Landon Fuller <landonf at FreeBSD.org>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY 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) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+
+#include <machine/bus.h>
+
+#include <dev/bhnd/bhnd.h>
+#include <dev/bhnd/bcma/bcma_eromvar.h>
+
+#include "bcm_machdep.h"
+
+#define BCMFC_ERR(fmt, ...) printf("%s: " fmt, __FUNCTION__, ##__VA_ARGS__)
+
+int
+bcm_find_core_bcma(struct bhnd_chipid *chipid, bhnd_devclass_t devclass,
+ int unit, struct bhnd_core_info *info, uintptr_t *addr)
+{
+ struct bcma_erom erom;
+ struct bcma_erom_core core;
+ struct bcma_erom_sport_region region;
+ bhnd_devclass_t core_class;
+ int error;
+
+ error = bhnd_erom_bus_space_open(&erom, NULL, mips_bus_space_generic,
+ (bus_space_handle_t) BCM_SOC_ADDR(chipid->enum_addr, 0), 0);
+ if (error) {
+ BCMFC_ERR("erom open failed: %d\n", error);
+ return (error);
+ }
+
+ for (u_long core_index = 0; core_index < ULONG_MAX; core_index++) {
+ /* Fetch next core record */
+ if ((error = bcma_erom_seek_next_core(&erom)))
+ return (error);
+
+ if ((error = bcma_erom_parse_core(&erom, &core))) {
+ BCMFC_ERR("core parse failed: %d\n", error);
+ return (error);
+ }
+
+ /* Check for match */
+ core_class = bhnd_find_core_class(core.vendor,
+ core.device);
+ if (core_class != devclass)
+ continue;
+
+ /* Provide the basic core info */
+ if (info != NULL)
+ bcma_erom_to_core_info(&core, core_index, 0, info);
+
+ /* Provide the core's device0.0 port address */
+ error = bcma_erom_seek_core_sport_region(&erom, core_index,
+ BHND_PORT_DEVICE, 0, 0);
+ if (error) {
+ BCMFC_ERR("sport not found: %d\n", error);
+ return (error);
+ }
+
+ if ((error = bcma_erom_parse_sport_region(&erom, ®ion))) {
+ BCMFC_ERR("sport parse failed: %d\n", error);
+ return (error);
+ }
+
+ if (addr != NULL)
+ *addr = region.base_addr;
+
+ return (0);
+ }
+
+ /* Not found */
+ return (ENOENT);
+}
Modified: head/sys/mips/broadcom/bcm_machdep.c
==============================================================================
--- head/sys/mips/broadcom/bcm_machdep.c Fri Aug 26 20:15:22 2016 (r304858)
+++ head/sys/mips/broadcom/bcm_machdep.c Fri Aug 26 20:16:02 2016 (r304859)
@@ -1,6 +1,7 @@
/*-
* Copyright (c) 2007 Bruce M. Simpson.
* Copyright (c) 2016 Michael Zhilin <mizhka at gmail.com>
+ * Copyright (c) 2016 Landon Fuller <landonf at FreeBSD.org>
*
* All rights reserved.
*
@@ -71,6 +72,18 @@ __FBSDID("$FreeBSD$");
#include <machine/trap.h>
#include <machine/vmparam.h>
+#include <dev/bhnd/bhnd.h>
+#include <dev/bhnd/bhndreg.h>
+
+#include <dev/bhnd/bcma/bcma_eromvar.h>
+
+#include <dev/bhnd/siba/sibareg.h>
+#include <dev/bhnd/siba/sibavar.h>
+
+#include <dev/bhnd/cores/chipc/chipcreg.h>
+
+#include "bcm_machdep.h"
+#include "bcm_mips_exts.h"
#include "bcm_socinfo.h"
#ifdef CFE
@@ -83,8 +96,150 @@ __FBSDID("$FreeBSD$");
#define BCM_TRACE(_fmt, ...)
#endif
-extern int *edata;
-extern int *end;
+static int bcm_find_core(struct bhnd_chipid *chipid,
+ bhnd_devclass_t devclass, int unit,
+ struct bhnd_core_info *info, uintptr_t *addr);
+static int bcm_init_platform_data(struct bcm_platform *pdata);
+
+/* Allow bus-specific implementations to override bcm_find_core_(bcma|siba)
+ * symbols, if included in the kernel build */
+__weak_reference(bcm_find_core_default, bcm_find_core_bcma);
+__weak_reference(bcm_find_core_default, bcm_find_core_siba);
+
+extern int *edata;
+extern int *end;
+
+static struct bcm_platform bcm_platform_data;
+static bool bcm_platform_data_avail = false;
+
+struct bcm_platform *
+bcm_get_platform(void)
+{
+ if (!bcm_platform_data_avail)
+ panic("platform data not available");
+
+ return (&bcm_platform_data);
+}
+
+/* Default (no-op) bcm_find_core() implementation. */
+int
+bcm_find_core_default(struct bhnd_chipid *chipid, bhnd_devclass_t devclass,
+ int unit, struct bhnd_core_info *info, uintptr_t *addr)
+{
+ return (ENODEV);
+}
+
+/**
+ * Search @p chipid's enumeration table for a core with @p devclass and
+ * @p unit.
+ *
+ * @param chipid Chip identification data, including the address
+ * of the enumeration table to be searched.
+ * @param devclass Search for a core matching this device class.
+ * @param unit The core's required unit number.
+ * @param[out] info On success, will be populated with the core
+ * info.
+ */
+static int
+bcm_find_core(struct bhnd_chipid *chipid, bhnd_devclass_t devclass, int unit,
+ struct bhnd_core_info *info, uintptr_t *addr)
+{
+ switch (chipid->chip_type) {
+ case BHND_CHIPTYPE_SIBA:
+ return (bcm_find_core_siba(chipid, devclass, unit, info, addr));
+ break;
+ default:
+ if (!BHND_CHIPTYPE_HAS_EROM(chipid->chip_type)) {
+ printf("%s: unsupported chip type: %d\n", __FUNCTION__,
+ chipid->chip_type);
+ return (ENXIO);
+ }
+ return (bcm_find_core_bcma(chipid, devclass, unit, info, addr));
+ }
+}
+
+/**
+ * Populate platform configuration data.
+ */
+static int
+bcm_init_platform_data(struct bcm_platform *pdata)
+{
+ uint32_t reg;
+ bhnd_addr_t enum_addr;
+ long maddr;
+ uint8_t chip_type;
+ bool aob, pmu;
+ int error;
+
+ /* Fetch CFE console handle (if any). Must be initialized before
+ * any calls to printf/early_putc. */
+#ifdef CFE
+ if ((pdata->cfe_console = cfe_getstdhandle(CFE_STDHANDLE_CONSOLE)) < 0)
+ pdata->cfe_console = -1;
+#endif
+
+ /* Fetch bhnd/chipc address */
+ if (resource_long_value("bhnd", 0, "maddr", &maddr) == 0)
+ pdata->cc_addr = (u_long)maddr;
+ else
+ pdata->cc_addr = BHND_DEFAULT_CHIPC_ADDR;
+
+ /* Read chip identifier from ChipCommon */
+ reg = BCM_SOC_READ_4(pdata->cc_addr, CHIPC_ID);
+ chip_type = CHIPC_GET_BITS(reg, CHIPC_ID_BUS);
+
+ if (BHND_CHIPTYPE_HAS_EROM(chip_type))
+ enum_addr = BCM_SOC_READ_4(pdata->cc_addr, CHIPC_EROMPTR);
+ else
+ enum_addr = pdata->cc_addr;
+
+ pdata->id = bhnd_parse_chipid(reg, enum_addr);
+
+ /* Fetch chipc core info and capabilities */
+ pdata->cc_caps = BCM_SOC_READ_4(pdata->cc_addr, CHIPC_CAPABILITIES);
+
+ error = bcm_find_core(&pdata->id, BHND_DEVCLASS_CC, 0, &pdata->cc_id,
+ NULL);
+ if (error) {
+ printf("%s: error locating chipc core: %d", __FUNCTION__,
+ error);
+ return (error);
+ }
+
+ if (CHIPC_HWREV_HAS_CAP_EXT(pdata->cc_id.hwrev)) {
+ pdata->cc_caps_ext = BCM_SOC_READ_4(pdata->cc_addr,
+ CHIPC_CAPABILITIES_EXT);
+ } else {
+ pdata->cc_caps_ext = 0x0;
+ }
+
+ /* Fetch PMU info */
+ pmu = CHIPC_GET_FLAG(pdata->cc_caps, CHIPC_CAP_PMU);
+ aob = CHIPC_GET_FLAG(pdata->cc_caps_ext, CHIPC_CAP2_AOB);
+
+ if (pmu && aob) {
+ /* PMU block mapped to a PMU core on the Always-on-Bus (aob) */
+ error = bcm_find_core(&pdata->id, BHND_DEVCLASS_PMU, 0,
+ &pdata->pmu_id, &pdata->pmu_addr);
+
+ if (error) {
+ printf("%s: error locating pmu core: %d", __FUNCTION__,
+ error);
+ return (error);
+ }
+ } else if (pmu) {
+ /* PMU block mapped to chipc */
+ pdata->pmu_addr = pdata->cc_addr;
+ pdata->pmu_id = pdata->cc_id;
+ } else {
+ /* No PMU */
+ pdata->pmu_addr = 0x0;
+ memset(&pdata->pmu_id, 0, sizeof(pdata->pmu_id));
+ }
+
+ bcm_platform_data_avail = true;
+ return (0);
+}
void
platform_cpu_init()
@@ -162,23 +317,42 @@ mips_init(void)
void
platform_reset(void)
{
+ bool bcm4785war;
+
printf("bcm::platform_reset()\n");
intr_disable();
-#if defined(CFE)
- cfe_exit(0, 0);
-#else
- /* PMU watchdog reset */
- BCM_WRITE_REG32(BCM_REG_CHIPC_PMUWD_OFFS, 2); /* PMU watchdog */
+#ifdef CFE
+ /* Fall back on CFE if reset requested during platform
+ * data initialization */
+ if (!bcm_platform_data_avail) {
+ cfe_exit(0, 0);
+ while (1);
+ }
#endif
-#if 0
- /* Non-PMU reset
- * XXX: Need chipc capability flags */
- *((volatile uint8_t *)MIPS_PHYS_TO_KSEG1(SENTRY5_EXTIFADR)) = 0x80;
-#endif
-
- for (;;);
+ /* Handle BCM4785-specific behavior */
+ bcm4785war = false;
+ if (bcm_get_platform()->id.chip_id == BHND_CHIPID_BCM4785) {
+ bcm4785war = true;
+
+ /* Switch to async mode */
+ bcm_mips_wr_pllcfg3(MIPS_BCMCFG_PLLCFG3_SM);
+ }
+
+ /* Set watchdog (PMU or ChipCommon) */
+ if (bcm_get_platform()->pmu_addr != 0x0) {
+ BCM_CHIPC_WRITE_4(CHIPC_PMU_WATCHDOG, 1);
+ } else
+ BCM_CHIPC_WRITE_4(CHIPC_WATCHDOG, 1);
+
+ /* BCM4785 */
+ if (bcm4785war) {
+ mips_sync();
+ __asm __volatile("wait");
+ }
+
+ while (1);
}
void
@@ -188,6 +362,7 @@ platform_start(__register_t a0, __regist
vm_offset_t kernend;
uint64_t platform_counter_freq;
struct bcm_socinfo *socinfo;
+ int error;
/* clear the BSS and SBSS segments */
kernend = (vm_offset_t)&end;
@@ -213,36 +388,9 @@ platform_start(__register_t a0, __regist
cfe_init(a0, a2);
#endif
-#if 0
- /*
- * Probe the Broadcom on-chip PLL clock registers
- * and discover the CPU pipeline clock and bus clock
- * multipliers from this.
- * XXX: Wrong place. You have to ask the ChipCommon
- * or External Interface cores on the SiBa.
- */
- uint32_t busmult, cpumult, refclock, clkcfg1;
-#define S5_CLKCFG1_REFCLOCK_MASK 0x0000001F
-#define S5_CLKCFG1_BUSMULT_MASK 0x000003E0
-#define S5_CLKCFG1_BUSMULT_SHIFT 5
-#define S5_CLKCFG1_CPUMULT_MASK 0xFFFFFC00
-#define S5_CLKCFG1_CPUMULT_SHIFT 10
-
- counter_freq = 100000000; /* XXX */
-
- clkcfg1 = s5_rd_clkcfg1();
- printf("clkcfg1 = 0x%08x\n", clkcfg1);
-
- refclock = clkcfg1 & 0x1F;
- busmult = ((clkcfg1 & 0x000003E0) >> 5) + 1;
- cpumult = ((clkcfg1 & 0xFFFFFC00) >> 10) + 1;
-
- printf("refclock = %u\n", refclock);
- printf("busmult = %u\n", busmult);
- printf("cpumult = %u\n", cpumult);
-
- counter_freq = cpumult * refclock;
-#endif
+ /* Init BCM platform data */
+ if ((error = bcm_init_platform_data(&bcm_platform_data)))
+ panic("bcm_init_platform_data() failed: %d", error);
socinfo = bcm_get_socinfo();
platform_counter_freq = socinfo->cpurate * 1000 * 1000; /* BCM4718 is 480MHz */
@@ -267,20 +415,20 @@ platform_start(__register_t a0, __regist
static void
bcm_cfe_eputc(int c)
{
- static int fd = -1;
unsigned char ch;
+ int handle;
ch = (unsigned char) c;
- if (fd == -1) {
- if ((fd = cfe_getstdhandle(CFE_STDHANDLE_CONSOLE)) < 0)
- return;
- }
+ /* bcm_get_platform() cannot be used here, as we may be called
+ * from bcm_init_platform_data(). */
+ if ((handle = bcm_platform_data.cfe_console) < 0)
+ return;
if (ch == '\n')
early_putc('\r');
- while ((cfe_write(fd, &ch, 1)) == 0)
+ while ((cfe_write(handle, &ch, 1)) == 0)
continue;
}
Added: head/sys/mips/broadcom/bcm_machdep.h
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/mips/broadcom/bcm_machdep.h Fri Aug 26 20:16:02 2016 (r304859)
@@ -0,0 +1,93 @@
+/*-
+ * Copyright (c) 2016 Landon Fuller <landonf at FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
+ * redistribution must be conditioned upon including a substantially
+ * similar Disclaimer requirement for further binary redistribution.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGES.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _MIPS_BROADCOM_BCM_MACHDEP_H_
+#define _MIPS_BROADCOM_BCM_MACHDEP_H_
+
+#include <machine/cpufunc.h>
+#include <machine/cpuregs.h>
+
+#include <dev/bhnd/bhnd.h>
+
+struct bcm_platform {
+ struct bhnd_chipid id; /**< chip id */
+ struct bhnd_core_info cc_id; /**< chipc core info */
+ uintptr_t cc_addr; /**< chipc core phys address */
+ uint32_t cc_caps; /**< chipc capabilities */
+ uint32_t cc_caps_ext; /**< chipc extended capabilies */
+
+ /* On non-AOB devices, the PMU register block is mapped to chipc;
+ * the pmu_id and pmu_addr values will be copied from cc_id
+ * and cc_addr. */
+ struct bhnd_core_info pmu_id; /**< PMU core info */
+ uintptr_t pmu_addr; /**< PMU core phys address. */
+
+#ifdef CFE
+ int cfe_console; /**< Console handle, or -1 */
+#endif
+};
+
+
*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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