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Commit d9d1f3e2 authored by Russell King's avatar Russell King
Browse files

ARM: l2c: check that DT files specify the required "cache-unified" property 



This is a required property, and should always be specified.

Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 1a5a954c

arch/arm/mm/cache-l2x0.c

+4 −0
Original line number Original line Diff line number Diff line
@@ -1364,6 +1364,10 @@ int __init l2x0_of_init(u32 aux_val, u32 aux_mask) 




	data = of_match_node(l2x0_ids, np)->data;

	data = of_match_node(l2x0_ids, np)->data;





	/* All L2 caches are unified, so this property should be specified */

	if (!of_property_read_bool(np, "cache-unified"))

		pr_err("L2C: device tree omits to specify unified cache\n");



	/* L2 configuration can only be changed if the cache is disabled */

	/* L2 configuration can only be changed if the cache is disabled */

	if (!(readl_relaxed(l2x0_base + L2X0_CTRL) & L2X0_CTRL_EN))

	if (!(readl_relaxed(l2x0_base + L2X0_CTRL) & L2X0_CTRL_EN))

		if (data->of_parse)

		if (data->of_parse)