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Merge "qcom: pil: Move the IMEM location for disabling timeouts"

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qctecmdr 2020-08-16 05:04:36 -07:00 • committed by Gerrit - the friendly Code Review server
commit 487ed773a1
1 changed files with 41 additions and 18 deletions
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65
drivers/soc/qcom/peripheral-loader.c
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@ -54,6 +54,7 @@
#define NUM_OF_ENCRYPTED_KEY 3
static void __iomem *pil_info_base;
static void __iomem *pil_disable_timeout_base;
static struct md_global_toc *g_md_toc;
/**
@ -1676,39 +1677,61 @@ static int pil_pm_notify(struct notifier_block *b, unsigned long event, void *p)
static struct notifier_block pil_pm_notifier = {
.notifier_call = pil_pm_notify,
};
static int __init msm_pil_init(void)
static void __iomem * __init pil_get_resource(const char *prop,
resource_size_t *out_size)
{
void __iomem *base_addr;
struct device_node *np;
struct resource res;
np = of_find_compatible_node(NULL, NULL, prop);
if (!np) {
pr_warn("pil: failed to find %s node\n", prop);
return NULL;
}
if (of_address_to_resource(np, 0, &res)) {
pr_warn("pil: address to resource for %s failed\n", prop);
return NULL;
}
base_addr = ioremap(res.start, resource_size(&res));
if (!base_addr) {
pr_warn("pil: could not map region for %s\n", prop);
return NULL;
}
if (out_size)
*out_size = resource_size(&res);
return base_addr;
}
static int __init msm_pil_init(void)
{
resource_size_t res_size;
int i;
np = of_find_compatible_node(NULL, NULL, "qcom,msm-imem-pil");
if (!np) {
pr_warn("pil: failed to find qcom,msm-imem-pil node\n");
goto out;
pil_info_base = pil_get_resource("qcom,msm-imem-pil", &res_size);
if (pil_info_base) {
for (i = 0; i < res_size / sizeof(u32); i++)
writel_relaxed(0, pil_info_base + (i * sizeof(u32)));
}
if (of_address_to_resource(np, 0, &res)) {
pr_warn("pil: address to resource on imem region failed\n");
goto out;
pil_disable_timeout_base =
pil_get_resource("qcom,msm-imem-pil-disable-timeout", NULL);
if (pil_disable_timeout_base) {
if (__raw_readl(pil_disable_timeout_base) == 0x53444247) {
pr_info("pil: pil-imem set to disable pil timeouts\n");
disable_timeouts = true;
}
iounmap(pil_disable_timeout_base);
}
pil_info_base = ioremap(res.start, resource_size(&res));
if (!pil_info_base) {
pr_warn("pil: could not map imem region\n");
goto out;
}
if (__raw_readl(pil_info_base) == 0x53444247) {
pr_info("pil: pil-imem set to disable pil timeouts\n");
disable_timeouts = true;
}
for (i = 0; i < resource_size(&res)/sizeof(u32); i++)
writel_relaxed(0, pil_info_base + (i * sizeof(u32)));
pil_wq = alloc_workqueue("pil_workqueue", WQ_HIGHPRI | WQ_UNBOUND, 0);
if (!pil_wq)
pr_warn("pil: Defaulting to sequential firmware loading.\n");
out:
return register_pm_notifier(&pil_pm_notifier);
}
subsys_initcall(msm_pil_init);