u-boot/arch/arm/include/asm/arch-omap5/sys_proto.h
Praveen Rao 5f603761c3 ARM: DRA7 / OMAP5: Add workaround for ARM errata 798870
This patch enables the workaround for ARM errata 798870 for OMAP5 /
DRA7 which says "If back-to-back speculative cache line fills (fill
A and fill B) are issued from the L1 data cache of a CPU to the
L2 cache, the second request (fill B) is then cancelled, and the
second request would have detected a hazard against a recent write or
eviction (write B) to the same cache line as fill B then the L2 logic
might deadlock."

An l2auxctlr accessor implementation for OMAP5 and DRA7 is introduced
here as well.

Signed-off-by: Praveen Rao <prao@ti.com>
Signed-off-by: Angela Stegmaier <angelabaker@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Tested-by: Matt Porter <mporter@konsulko.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2015-03-13 09:29:01 -04:00

72 lines
1.6 KiB
C

/*
* (C) Copyright 2010
* Texas Instruments, <www.ti.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _SYS_PROTO_H_
#define _SYS_PROTO_H_
#include <asm/arch/omap.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/omap_common.h>
#include <linux/mtd/omap_gpmc.h>
#include <asm/arch/clock.h>
#include <asm/ti-common/sys_proto.h>
DECLARE_GLOBAL_DATA_PTR;
struct pad_conf_entry {
u32 offset;
u32 val;
};
struct omap_sysinfo {
char *board_string;
};
extern const struct omap_sysinfo sysinfo;
void gpmc_init(void);
void watchdog_init(void);
u32 get_device_type(void);
void do_set_mux(u32 base, struct pad_conf_entry const *array, int size);
void set_muxconf_regs_essential(void);
u32 wait_on_value(u32, u32, void *, u32);
void sdelay(unsigned long);
void setup_clocks_for_console(void);
void prcm_init(void);
void bypass_dpll(u32 const base);
void freq_update_core(void);
u32 get_sys_clk_freq(void);
u32 omap5_ddr_clk(void);
void cancel_out(u32 *num, u32 *den, u32 den_limit);
void sdram_init(void);
u32 omap_sdram_size(void);
u32 cortex_rev(void);
void save_omap_boot_params(void);
void init_omap_revision(void);
void do_io_settings(void);
void sri2c_init(void);
void gpi2c_init(void);
int omap_vc_bypass_send_value(u8 sa, u8 reg_addr, u8 reg_data);
u32 warm_reset(void);
void force_emif_self_refresh(void);
void get_ioregs(const struct ctrl_ioregs **regs);
void srcomp_enable(void);
void setup_warmreset_time(void);
static inline u32 div_round_up(u32 num, u32 den)
{
return (num + den - 1)/den;
}
static inline u32 usec_to_32k(u32 usec)
{
return div_round_up(32768 * usec, 1000000);
}
#define OMAP5_SERVICE_L2ACTLR_SET 0x104
#endif