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https://github.com/edk2-porting/linux-next.git
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e54433f10d
The warm reset function was still using the obsolete API. Replace it by the new one and move the file to the proper c file. Change the function names to stick to the file convention as suggested by Paul Walmsley <paul@pwsan.com>: prm_xxx -> prminst_xxx Signed-off-by: Benoit Cousson <b-cousson@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
90 lines
1.9 KiB
C
90 lines
1.9 KiB
C
/*
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* OMAP4 PRM module functions
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*
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* Copyright (C) 2011 Texas Instruments, Inc.
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* Copyright (C) 2010 Nokia Corporation
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* Benoît Cousson
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* Paul Walmsley
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/delay.h>
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#include <linux/errno.h>
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#include <linux/err.h>
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#include <linux/io.h>
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#include <plat/common.h>
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#include <plat/cpu.h>
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#include <plat/prcm.h>
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#include "prm44xx.h"
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#include "prm-regbits-44xx.h"
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/* PRM low-level functions */
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/* Read a register in a CM/PRM instance in the PRM module */
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u32 omap4_prm_read_inst_reg(s16 inst, u16 reg)
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{
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return __raw_readl(OMAP44XX_PRM_REGADDR(inst, reg));
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}
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/* Write into a register in a CM/PRM instance in the PRM module */
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void omap4_prm_write_inst_reg(u32 val, s16 inst, u16 reg)
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{
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__raw_writel(val, OMAP44XX_PRM_REGADDR(inst, reg));
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}
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/* Read-modify-write a register in a PRM module. Caller must lock */
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u32 omap4_prm_rmw_inst_reg_bits(u32 mask, u32 bits, s16 inst, s16 reg)
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{
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u32 v;
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v = omap4_prm_read_inst_reg(inst, reg);
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v &= ~mask;
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v |= bits;
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omap4_prm_write_inst_reg(v, inst, reg);
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return v;
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}
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/* Read a PRM register, AND it, and shift the result down to bit 0 */
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/* XXX deprecated */
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u32 omap4_prm_read_bits_shift(void __iomem *reg, u32 mask)
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{
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u32 v;
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v = __raw_readl(reg);
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v &= mask;
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v >>= __ffs(mask);
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return v;
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}
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/* Read-modify-write a register in a PRM module. Caller must lock */
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/* XXX deprecated */
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u32 omap4_prm_rmw_reg_bits(u32 mask, u32 bits, void __iomem *reg)
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{
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u32 v;
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v = __raw_readl(reg);
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v &= ~mask;
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v |= bits;
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__raw_writel(v, reg);
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return v;
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}
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u32 omap4_prm_set_inst_reg_bits(u32 bits, s16 inst, s16 reg)
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{
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return omap4_prm_rmw_inst_reg_bits(bits, bits, inst, reg);
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}
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u32 omap4_prm_clear_inst_reg_bits(u32 bits, s16 inst, s16 reg)
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{
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return omap4_prm_rmw_inst_reg_bits(bits, 0x0, inst, reg);
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}
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