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

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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
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=315465
1 changed files with 35 additions and 25 deletions
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60
sys/mips/broadcom/bcm_machdep.c
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@ -98,9 +98,9 @@ __FBSDID("$FreeBSD$");
static int bcm_init_platform_data(struct bcm_platform *bp);
static int bcm_find_core(struct bcm_platform *bp, uint16_t vendor,
uint16_t device, int unit, struct bhnd_core_info *info,
uintptr_t *addr);
static int bcm_find_core(struct bcm_platform *bp,
const struct bhnd_core_match *descs, size_t num_descs,
struct bhnd_core_info *info, uintptr_t *addr);
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,
@ -112,6 +112,15 @@ extern int *end;
static struct bcm_platform bcm_platform_data;
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 *
bcm_get_platform(void)
{
@ -133,39 +142,41 @@ bcm_get_bus_addr(void)
}
/**
* Search the device enumeration table for a core matching @p vendor,
* @p device, and @p unit.
* Search the device enumeration table for a core matching @p descs,
*
* @param bp Platform state containing a valid EROM parser.
* @param vendor The core's required vendor.
* @param device The core's required device id.
* @param unit The core's required unit number.
* @param descs The core match descriptor table.
* @param num_descs The number of match descriptors in @p descs.
* @param[out] info If non-NULL, will be populated with the core
* info.
* @param[out] addr If non-NULL, will be populated with the core's
* physical register address.
*/
static int
bcm_find_core(struct bcm_platform *bp, uint16_t vendor, uint16_t device,
int unit, struct bhnd_core_info *info, uintptr_t *addr)
bcm_find_core(struct bcm_platform *bp, const struct bhnd_core_match *descs,
size_t num_descs, struct bhnd_core_info *info, uintptr_t *addr)
{
struct bhnd_core_match md;
bhnd_addr_t b_addr;
bhnd_size_t b_size;
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 */
error = bhnd_erom_lookup_core_addr(&bp->erom.obj, &md, BHND_PORT_DEVICE,
0, 0, info, &b_addr, &b_size);
if (error)
return (error);
for (size_t i = 0; i < num_descs; i++) {
error = bhnd_erom_lookup_core_addr(&bp->erom.obj, &descs[i],
BHND_PORT_DEVICE, 0, 0, info, &b_addr, &b_size);
/* 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) {
BCM_ERR("core address %#jx overflows native address width\n",
(uintmax_t)b_addr);
@ -286,8 +297,8 @@ bcm_init_platform_data(struct bcm_platform *bp)
}
/* Fetch chipcommon core info */
error = bcm_find_core(bp, BHND_MFGID_BCM, BHND_COREID_CC, 0, &bp->cc_id,
&bp->cc_addr);
error = bcm_find_core(bp, bcm_chipc_cores, nitems(bcm_chipc_cores),
&bp->cc_id, &bp->cc_addr);
if (error) {
BCM_ERR("error locating chipc core: %d\n", error);
return (error);
@ -306,9 +317,8 @@ bcm_init_platform_data(struct bcm_platform *bp)
if (pmu && 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);
if (error) {
BCM_ERR("error locating pmu core: %d\n", error);
return (error);