d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add MIPS boot support for the BCM4706/Northstar ChipCommon core.

Browse Source 
This adds support for matching against a core lookup table when performing
early boot core lookup, and includes the BCM4706/Northstar-specific
ChipCommon core ID in the set of supported ChipCommon cores.

Approved by:	adrian (mentor)
Differential Revision:	https://reviews.freebsd.org/D10033
This commit is contained in:
Landon J. Fuller 2017-03-17 22:02:02 +00:00
parent e683c328f8
commit b86f80276b
1 changed files with 35 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

60
sys/mips/broadcom/bcm_machdep.c
View File

@ -98,9 +98,9 @@ __FBSDID("$FreeBSD$");
static int bcm_init_platform_data(struct bcm_platform *bp); static int bcm_init_platform_data(struct bcm_platform *bp);
static int bcm_find_core(struct bcm_platform *bp, uint16_t vendor, static int bcm_find_core(struct bcm_platform *bp,
uint16_t device, int unit, struct bhnd_core_info *info, const struct bhnd_core_match *descs, size_t num_descs,
uintptr_t *addr); struct bhnd_core_info *info, uintptr_t *addr);
static int bcm_erom_probe_and_attach(bhnd_erom_class_t **erom_cls, static int bcm_erom_probe_and_attach(bhnd_erom_class_t **erom_cls,
kobj_ops_t erom_ops, bhnd_erom_t *erom, size_t esize, kobj_ops_t erom_ops, bhnd_erom_t *erom, size_t esize,
@ -112,6 +112,15 @@ extern int *end;
static struct bcm_platform bcm_platform_data; static struct bcm_platform bcm_platform_data;
static bool bcm_platform_data_avail = false; static bool bcm_platform_data_avail = false;
static const struct bhnd_core_match bcm_chipc_cores[] = {
{ BHND_MATCH_CORE(BHND_MFGID_BCM, BHND_COREID_CC) },
{ BHND_MATCH_CORE(BHND_MFGID_BCM, BHND_COREID_4706_CC) },
};
static const struct bhnd_core_match bcm_pmu_cores[] = {
{ BHND_MATCH_CORE(BHND_MFGID_BCM, BHND_COREID_PMU) },
};
struct bcm_platform * struct bcm_platform *
bcm_get_platform(void) bcm_get_platform(void)
{ {
@ -133,39 +142,41 @@ bcm_get_bus_addr(void)
} }
/** /**
* Search the device enumeration table for a core matching @p vendor, * Search the device enumeration table for a core matching @p descs,
* @p device, and @p unit.
* *
* @param bp Platform state containing a valid EROM parser. * @param bp Platform state containing a valid EROM parser.
* @param vendor The core's required vendor. * @param descs The core match descriptor table.
* @param device The core's required device id. * @param num_descs The number of match descriptors in @p descs.
* @param unit The core's required unit number.
* @param[out] info If non-NULL, will be populated with the core * @param[out] info If non-NULL, will be populated with the core
* info. * info.
* @param[out] addr If non-NULL, will be populated with the core's * @param[out] addr If non-NULL, will be populated with the core's
* physical register address. * physical register address.
*/ */
static int static int
bcm_find_core(struct bcm_platform *bp, uint16_t vendor, uint16_t device, bcm_find_core(struct bcm_platform *bp, const struct bhnd_core_match *descs,
int unit, struct bhnd_core_info *info, uintptr_t *addr) size_t num_descs, struct bhnd_core_info *info, uintptr_t *addr)
{ {
struct bhnd_core_match md;
bhnd_addr_t b_addr; bhnd_addr_t b_addr;
bhnd_size_t b_size; bhnd_size_t b_size;
int error; int error;
md = (struct bhnd_core_match) {
BHND_MATCH_CORE_VENDOR(vendor),
BHND_MATCH_CORE_ID(BHND_COREID_CC),
BHND_MATCH_CORE_UNIT(0)
};
/* Fetch core info */ /* Fetch core info */
error = bhnd_erom_lookup_core_addr(&bp->erom.obj, &md, BHND_PORT_DEVICE, for (size_t i = 0; i < num_descs; i++) {
0, 0, info, &b_addr, &b_size); error = bhnd_erom_lookup_core_addr(&bp->erom.obj, &descs[i],
if (error) BHND_PORT_DEVICE, 0, 0, info, &b_addr, &b_size);
return (error);
/* Terminate search on first match */
if (error == 0)
break;
/* Terminate on first error (other than core not found) */
if (error != ENOENT)
return (error);
/* Continue search ... */
}
/* Provide the core's base address */
if (addr != NULL && b_addr > UINTPTR_MAX) { if (addr != NULL && b_addr > UINTPTR_MAX) {
BCM_ERR("core address %#jx overflows native address width\n", BCM_ERR("core address %#jx overflows native address width\n",
(uintmax_t)b_addr); (uintmax_t)b_addr);
@ -286,8 +297,8 @@ bcm_init_platform_data(struct bcm_platform *bp)
} }
/* Fetch chipcommon core info */ /* Fetch chipcommon core info */
error = bcm_find_core(bp, BHND_MFGID_BCM, BHND_COREID_CC, 0, &bp->cc_id, error = bcm_find_core(bp, bcm_chipc_cores, nitems(bcm_chipc_cores),
&bp->cc_addr); &bp->cc_id, &bp->cc_addr);
if (error) { if (error) {
BCM_ERR("error locating chipc core: %d\n", error); BCM_ERR("error locating chipc core: %d\n", error);
return (error); return (error);
@ -306,9 +317,8 @@ bcm_init_platform_data(struct bcm_platform *bp)
if (pmu && aob) { if (pmu && aob) {
/* PMU block mapped to a PMU core on the Always-on-Bus (aob) */ /* PMU block mapped to a PMU core on the Always-on-Bus (aob) */
error = bcm_find_core(bp, BHND_MFGID_BCM, BHND_COREID_PMU, 0, error = bcm_find_core(bp, bcm_pmu_cores, nitems(bcm_pmu_cores),
&bp->pmu_id, &bp->pmu_addr); &bp->pmu_id, &bp->pmu_addr);
if (error) { if (error) {
BCM_ERR("error locating pmu core: %d\n", error); BCM_ERR("error locating pmu core: %d\n", error);
return (error); return (error);