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/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#include <arch/cache.h>
#include <soc/cache.h>
#include <stdint.h>
enum {
L2CTLR_ECC_PARITY = 0x1 << 21,
L2CTLR_TAG_RAM_LATENCY_MASK = 0x7 << 6,
L2CTLR_TAG_RAM_LATENCY_CYCLES_3 = 2 << 6,
L2CTLR_DATA_RAM_LATENCY_MASK = 0x7 << 0,
L2CTLR_DATA_RAM_LATENCY_CYCLES_3 = 2 << 0
};
enum {
L2ACTLR_FORCE_L2_LOGIC_CLOCK_ENABLE_ACTIVE = 0x1 << 27,
L2ACTLR_ENABLE_HAZARD_DETECT_TIMEOUT = 0x1 << 7,
L2ACTLR_DISABLE_CLEAN_EVICT_PUSH_EXTERNAL = 0x1 << 3
};
/* Configures L2 Control Register to use 3 cycles for DATA/TAG RAM latency. */
static void configure_l2ctlr(void)
{
uint32_t val;
val = read_l2ctlr();
val &= ~(L2CTLR_DATA_RAM_LATENCY_MASK | L2CTLR_TAG_RAM_LATENCY_MASK);
val |= (L2CTLR_DATA_RAM_LATENCY_CYCLES_3 |
L2CTLR_TAG_RAM_LATENCY_CYCLES_3 | L2CTLR_ECC_PARITY);
write_l2ctlr(val);
}
/* Configures L2 Auxiliary Control Register for Cortex A15. */
static void configure_l2actlr(void)
{
uint32_t val;
val = read_l2actlr();
val |= (L2ACTLR_DISABLE_CLEAN_EVICT_PUSH_EXTERNAL |
L2ACTLR_ENABLE_HAZARD_DETECT_TIMEOUT |
L2ACTLR_FORCE_L2_LOGIC_CLOCK_ENABLE_ACTIVE);
write_l2actlr(val);
}
void configure_l2_cache(void)
{
configure_l2ctlr();
configure_l2actlr();
}
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