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-rw-r--r--arch/arm/mach-bcm/bcm_kona_smc.c23
1 files changed, 6 insertions, 17 deletions
diff --git a/arch/arm/mach-bcm/bcm_kona_smc.c b/arch/arm/mach-bcm/bcm_kona_smc.c
index 185335843bbd..f236e12d7a59 100644
--- a/arch/arm/mach-bcm/bcm_kona_smc.c
+++ b/arch/arm/mach-bcm/bcm_kona_smc.c
@@ -31,34 +31,23 @@ static const struct of_device_id bcm_kona_smc_ids[] __initconst = {
int __init bcm_kona_smc_init(void)
{
struct device_node *node;
- const __be32 *prop_val;
- u64 prop_size = 0;
- unsigned long buffer_size;
- u32 buffer_phys;
+ struct resource res;
+ int ret;
/* Read buffer addr and size from the device tree node */
node = of_find_matching_node(NULL, bcm_kona_smc_ids);
if (!node)
return -ENODEV;
- prop_val = of_get_address(node, 0, &prop_size, NULL);
+ ret = of_address_to_resource(node, 0, &res);
of_node_put(node);
- if (!prop_val)
+ if (ret)
return -EINVAL;
- /* We assume space for four 32-bit arguments */
- if (prop_size < 4 * sizeof(u32) || prop_size > (u64)ULONG_MAX)
- return -EINVAL;
- buffer_size = (unsigned long)prop_size;
-
- buffer_phys = be32_to_cpup(prop_val);
- if (!buffer_phys)
- return -EINVAL;
-
- bcm_smc_buffer = ioremap(buffer_phys, buffer_size);
+ bcm_smc_buffer = ioremap(res.start, resource_size(&res));
if (!bcm_smc_buffer)
return -ENOMEM;
- bcm_smc_buffer_phys = buffer_phys;
+ bcm_smc_buffer_phys = res.start;
pr_info("Kona Secure API initialized\n");