提交 1b4bd608 编写于 作者: F Florian Fainelli 提交者: Russell King

ARM: 8309/1: l2c: enforce use of cache-level property

Make sure that we can read the "cache-level" property from the L2 cache
controller node, and ensure its value is 2.
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
上级 5744ff43
......@@ -1648,6 +1648,7 @@ int __init l2x0_of_init(u32 aux_val, u32 aux_mask)
struct device_node *np;
struct resource res;
u32 cache_id, old_aux;
u32 cache_level = 2;
np = of_find_matching_node(NULL, l2x0_ids);
if (!np)
......@@ -1680,6 +1681,12 @@ int __init l2x0_of_init(u32 aux_val, u32 aux_mask)
if (!of_property_read_bool(np, "cache-unified"))
pr_err("L2C: device tree omits to specify unified cache\n");
if (of_property_read_u32(np, "cache-level", &cache_level))
pr_err("L2C: device tree omits to specify cache-level\n");
if (cache_level != 2)
pr_err("L2C: device tree specifies invalid cache level\n");
/* Read back current (default) hardware configuration */
if (data->save)
data->save(l2x0_base);
......
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