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Commit 80757f23 authored by Linus Walleij's avatar Linus Walleij
Browse files

ARM: ux500: remap BB offset dynamically 



Instead of relying on static maps, remap the BB chip ID
offset dynamically.

Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 2d6dd171

arch/arm/mach-ux500/cpu-db8500.c

+5 −1
Original line number Diff line number Diff line
@@ -104,14 +104,18 @@ static struct arm_pmu_platdata db8500_pmu_platdata = { 


static const char *db8500_read_soc_id(void)

{

	void __iomem *uid = __io_address(U8500_BB_UID_BASE);

	void __iomem *uid;



	uid = ioremap(U8500_BB_UID_BASE, 0x20);

	if (!uid)

		return NULL;

	/* Throw these device-specific numbers into the entropy pool */

	add_device_randomness(uid, 0x14);

	return kasprintf(GFP_KERNEL, "%08x%08x%08x%08x%08x",

			 readl((u32 *)uid+0),

			 readl((u32 *)uid+1), readl((u32 *)uid+2),

			 readl((u32 *)uid+3), readl((u32 *)uid+4));

	iounmap(uid);

}



static struct device * __init db8500_soc_device_init(void)