/*
* Copyright (C) 2016 Glider bvba
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*/
#ifndef __DT_BINDINGS_POWER_R8A7790_SYSC_H__
#define __DT_BINDINGS_POWER_R8A7790_SYSC_H__
/*
* These power domain indices match the numbers of the interrupt bits
* representing the power areas in the various Interrupt Registers
* (e.g. SYSCISR, Interrupt Status Register)
*/
#define R8A7790_PD_CA15_CPU0 0
#define R8A7790_PD_CA15_CPU1 1
#define R8A7790_PD_CA15_CPU2 2
#define R8A7790_PD_CA15_CPU3 3
#define R8A7790_PD_CA7_CPU0 5
#define R8A7790_PD_CA7_CPU1 6
#define R8A7790_PD_CA7_CPU2 7
#define R8A7790_PD_CA7_CPU3 8
#define R8A7790_PD_CA15_SCU 12
#define R8A7790_PD_SH_4A 16
#define R8A7790_PD_RGX 20
#define R8A7790_PD_CA7_SCU 21
#define R8A7790_PD_IMP 24
/* Always-on power area */
#define R8A7790_PD_ALWAYS_ON 32
#endif /* __DT_BINDINGS_POWER_R8A7790_SYSC_H__ */
Microblaze is an FPGA soft core that can be configured various ways.
If it is configured without a multiplier, the standard __hash_32()
will require a call to __mulsi3, which is a slow software loop.
Instead, use a shift-and-add sequence for the constant multiply.
GCC knows how to do this, but it's not as clever as some.
Signed-off-by: George Spelvin <linux@sciencehorizons.net>
Cc: Alistair Francis <alistair.francis@xilinx.com>
Cc: Michal Simek <michal.simek@xilinx.com>