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remoteproc: k3-r5: Add support for single cpu mode

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Add early boot support for AM64 single cpu mode configuration.
In single CPU mode the 2nd core of the R5F cluster can't be used or
unavailable.

Signed-off-by: Hari Nagalla <hnagalla@ti.com>
This commit is contained in:
Hari Nagalla
2025-08-13 16:47:05 -05:00
committed by Tom Rini
parent 29ce50acbb
commit 1564282912
1 changed files with 9 additions and 2 deletions
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11
drivers/remoteproc/ti_k3_r5f_rproc.c
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@@ -233,7 +233,7 @@ static int k3_r5f_prepare(struct udevice *dev)
dev_dbg(dev, "%s\n", __func__);
if (cluster->mode == CLUSTER_MODE_LOCKSTEP)
if ((cluster->mode == CLUSTER_MODE_LOCKSTEP) || (cluster->mode == CLUSTER_MODE_SINGLECPU))
ret = k3_r5f_lockstep_release(cluster);
else
ret = k3_r5f_split_release(core);
@@ -269,6 +269,13 @@ static int k3_r5f_core_sanity_check(struct k3_r5f_core *core)
return -EINVAL;
}
if (cluster->mode == CLUSTER_MODE_SINGLECPU && !is_primary_core(core)) {
dev_err(core->dev,
"Invalid op: Trying to start secondary core %d in single CPU mode\n",
core->tsp.proc_id);
return -EINVAL;
}
if (cluster->mode == CLUSTER_MODE_SPLIT && !is_primary_core(core)) {
if (!core->cluster->cores[0]->in_use) {
dev_err(core->dev,
@@ -768,7 +775,7 @@ static void k3_r5f_core_adjust_tcm_sizes(struct k3_r5f_core *core)
{
struct k3_r5f_cluster *cluster = core->cluster;
if (cluster->mode == CLUSTER_MODE_LOCKSTEP)
if ((cluster->mode == CLUSTER_MODE_LOCKSTEP) || (cluster->mode == CLUSTER_MODE_SINGLECPU))
return;
if (!core->ipdata->tcm_is_double)