Messages in this thread | | | Date | Tue, 5 May 2020 17:20:50 +0100 | From | Will Deacon <> | Subject | Re: [PATCH v2 5/5] arm/arm64: smccc: Add ARCH_SOC_ID support |
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On Mon, May 04, 2020 at 10:29:05AM +0100, Sudeep Holla wrote: > diff --git a/drivers/firmware/psci/soc_id.c b/drivers/firmware/psci/soc_id.c > new file mode 100644 > index 000000000000..b45f2d78e12e > --- /dev/null > +++ b/drivers/firmware/psci/soc_id.c > @@ -0,0 +1,165 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Copyright 2020 Arm Limited > + */ > + > +#include <linux/arm-smccc.h> > +#include <linux/bitfield.h> > +#include <linux/device.h> > +#include <linux/module.h> > +#include <linux/kernel.h> > +#include <linux/slab.h> > +#include <linux/sys_soc.h> > + > +#define SMCCC_SOC_ID_JEP106_BANK_IDX_MASK GENMASK(30, 24) > +/* > + * As per the spec bits[23:16] are JEP-106 identification code with parity bit > + * for the SiP. We can drop the parity bit. > + */
Which spec? Could you link to the doc and section here, please?
Will
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