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/*
* Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <arch_helpers.h>
#include <assert.h>
#include <bl31.h>
#include <bl_common.h>
#include <console.h>
#include <context.h>
#include <context_mgmt.h>
#include <cortex_a57.h>
#include <debug.h>
#include <denver.h>
#include <interrupt_mgmt.h>
#include <mce.h>
#include <platform.h>
#include <tegra_def.h>
#include <tegra_platform.h>
#include <tegra_private.h>
#include <xlat_tables.h>
DEFINE_RENAME_SYSREG_RW_FUNCS(l2ctlr_el1, L2CTLR_EL1)
extern uint64_t tegra_enable_l2_ecc_parity_prot;
/*******************************************************************************
* Tegra186 CPU numbers in cluster #0
*******************************************************************************
*/
#define TEGRA186_CLUSTER0_CORE2 2
#define TEGRA186_CLUSTER0_CORE3 3
/*******************************************************************************
* The Tegra power domain tree has a single system level power domain i.e. a
* single root node. The first entry in the power domain descriptor specifies
* the number of power domains at the highest power level.
*******************************************************************************
*/
const unsigned char tegra_power_domain_tree_desc[] = {
/* No of root nodes */
1,
/* No of clusters */
PLATFORM_CLUSTER_COUNT,
/* No of CPU cores - cluster0 */
PLATFORM_MAX_CPUS_PER_CLUSTER,
/* No of CPU cores - cluster1 */
PLATFORM_MAX_CPUS_PER_CLUSTER
};
/*
* Table of regions to map using the MMU.
*/
static const mmap_region_t tegra_mmap[] = {
MAP_REGION_FLAT(TEGRA_MISC_BASE, 0x10000, /* 64KB */
MT_DEVICE | MT_RW | MT_SECURE),
MAP_REGION_FLAT(TEGRA_TSA_BASE, 0x20000, /* 128KB */
MT_DEVICE | MT_RW | MT_SECURE),
MAP_REGION_FLAT(TEGRA_MC_STREAMID_BASE, 0x10000, /* 64KB */
MT_DEVICE | MT_RW | MT_SECURE),
MAP_REGION_FLAT(TEGRA_MC_BASE, 0x10000, /* 64KB */
MT_DEVICE | MT_RW | MT_SECURE),
MAP_REGION_FLAT(TEGRA_UARTA_BASE, 0x20000, /* 128KB - UART A, B*/
MT_DEVICE | MT_RW | MT_SECURE),
MAP_REGION_FLAT(TEGRA_UARTC_BASE, 0x20000, /* 128KB - UART C, G */
MT_DEVICE | MT_RW | MT_SECURE),
MAP_REGION_FLAT(TEGRA_UARTD_BASE, 0x30000, /* 192KB - UART D, E, F */
MT_DEVICE | MT_RW | MT_SECURE),
MAP_REGION_FLAT(TEGRA_FUSE_BASE, 0x10000, /* 64KB */
MT_DEVICE | MT_RW | MT_SECURE),
MAP_REGION_FLAT(TEGRA_GICD_BASE, 0x20000, /* 128KB */
MT_DEVICE | MT_RW | MT_SECURE),
MAP_REGION_FLAT(TEGRA_SE0_BASE, 0x10000, /* 64KB */
MT_DEVICE | MT_RW | MT_SECURE),
MAP_REGION_FLAT(TEGRA_PKA1_BASE, 0x10000, /* 64KB */
MT_DEVICE | MT_RW | MT_SECURE),
MAP_REGION_FLAT(TEGRA_RNG1_BASE, 0x10000, /* 64KB */
MT_DEVICE | MT_RW | MT_SECURE),
MAP_REGION_FLAT(TEGRA_CAR_RESET_BASE, 0x10000, /* 64KB */
MT_DEVICE | MT_RW | MT_SECURE),
MAP_REGION_FLAT(TEGRA_PMC_BASE, 0x40000, /* 256KB */
MT_DEVICE | MT_RW | MT_SECURE),
MAP_REGION_FLAT(TEGRA_SCRATCH_BASE, 0x10000, /* 64KB */
MT_DEVICE | MT_RW | MT_SECURE),
MAP_REGION_FLAT(TEGRA_MMCRAB_BASE, 0x60000, /* 384KB */
MT_DEVICE | MT_RW | MT_SECURE),
MAP_REGION_FLAT(TEGRA_ARM_ACTMON_CTR_BASE, 0x20000, /* 128KB - ARM/Denver */
MT_DEVICE | MT_RW | MT_SECURE),
MAP_REGION_FLAT(TEGRA_SMMU0_BASE, 0x1000000, /* 64KB */
MT_DEVICE | MT_RW | MT_SECURE),
{0}
};
/*******************************************************************************
* Set up the pagetables as per the platform memory map & initialize the MMU
******************************************************************************/
const mmap_region_t *plat_get_mmio_map(void)
{
/* MMIO space */
return tegra_mmap;
}
/*******************************************************************************
* Handler to get the System Counter Frequency
******************************************************************************/
unsigned int plat_get_syscnt_freq2(void)
{
return 31250000;
}
/*******************************************************************************
* Maximum supported UART controllers
******************************************************************************/
#define TEGRA186_MAX_UART_PORTS 7
/*******************************************************************************
* This variable holds the UART port base addresses
******************************************************************************/
static uint32_t tegra186_uart_addresses[TEGRA186_MAX_UART_PORTS + 1] = {
0, /* undefined - treated as an error case */
TEGRA_UARTA_BASE,
TEGRA_UARTB_BASE,
TEGRA_UARTC_BASE,
TEGRA_UARTD_BASE,
TEGRA_UARTE_BASE,
TEGRA_UARTF_BASE,
TEGRA_UARTG_BASE,
};
/*******************************************************************************
* Retrieve the UART controller base to be used as the console
******************************************************************************/
uint32_t plat_get_console_from_id(int id)
{
if (id > TEGRA186_MAX_UART_PORTS)
return 0;
return tegra186_uart_addresses[id];
}
/* represent chip-version as concatenation of major (15:12), minor (11:8) and subrev (7:0) */
#define TEGRA186_VER_A02P 0x1201
/*******************************************************************************
* Handler for early platform setup
******************************************************************************/
void plat_early_platform_setup(void)
{
int impl = (read_midr() >> MIDR_IMPL_SHIFT) & MIDR_IMPL_MASK;
uint32_t chip_subrev, val;
/* sanity check MCE firmware compatibility */
mce_verify_firmware_version();
/*
* Enable ECC and Parity Protection for Cortex-A57 CPUs
* for Tegra A02p SKUs
*/
if (impl != DENVER_IMPL) {
/* get the major, minor and sub-version values */
chip_subrev = mmio_read_32(TEGRA_FUSE_BASE + OPT_SUBREVISION) &
SUBREVISION_MASK;
/* prepare chip version number */
val = (tegra_get_chipid_major() << 12) |
(tegra_get_chipid_minor() << 8) |
chip_subrev;
/* enable L2 ECC for Tegra186 A02P and beyond */
if (val >= TEGRA186_VER_A02P) {
val = read_l2ctlr_el1();
val |= L2_ECC_PARITY_PROTECTION_BIT;
write_l2ctlr_el1(val);
/*
* Set the flag to enable ECC/Parity Protection
* when we exit System Suspend or Cluster Powerdn
*/
tegra_enable_l2_ecc_parity_prot = 1;
}
}
}
/* Secure IRQs for Tegra186 */
static const irq_sec_cfg_t tegra186_sec_irqs[] = {
{
TEGRA186_TOP_WDT_IRQ,
TEGRA186_SEC_IRQ_TARGET_MASK,
INTR_TYPE_EL3,
},
{
TEGRA186_AON_WDT_IRQ,
TEGRA186_SEC_IRQ_TARGET_MASK,
INTR_TYPE_EL3,
},
};
/*******************************************************************************
* Initialize the GIC and SGIs
******************************************************************************/
void plat_gic_setup(void)
{
tegra_gic_setup(tegra186_sec_irqs,
sizeof(tegra186_sec_irqs) / sizeof(tegra186_sec_irqs[0]));
/*
* Initialize the FIQ handler only if the platform supports any
* FIQ interrupt sources.
*/
if (sizeof(tegra186_sec_irqs) > 0)
tegra_fiq_handler_setup();
}
/*******************************************************************************
* Return pointer to the BL31 params from previous bootloader
******************************************************************************/
bl31_params_t *plat_get_bl31_params(void)
{
uint32_t val;
val = mmio_read_32(TEGRA_SCRATCH_BASE + SECURE_SCRATCH_RSV53_LO);
return (bl31_params_t *)(uintptr_t)val;
}
/*******************************************************************************
* Return pointer to the BL31 platform params from previous bootloader
******************************************************************************/
plat_params_from_bl2_t *plat_get_bl31_plat_params(void)
{
uint32_t val;
val = mmio_read_32(TEGRA_SCRATCH_BASE + SECURE_SCRATCH_RSV53_HI);
return (plat_params_from_bl2_t *)(uintptr_t)val;
}
/*******************************************************************************
* This function implements a part of the critical interface between the psci
* generic layer and the platform that allows the former to query the platform
* to convert an MPIDR to a unique linear index. An error code (-1) is returned
* in case the MPIDR is invalid.
******************************************************************************/
int plat_core_pos_by_mpidr(u_register_t mpidr)
{
unsigned int cluster_id, cpu_id, pos;
cluster_id = (mpidr >> MPIDR_AFF1_SHIFT) & MPIDR_AFFLVL_MASK;
cpu_id = (mpidr >> MPIDR_AFF0_SHIFT) & MPIDR_AFFLVL_MASK;
/*
* Validate cluster_id by checking whether it represents
* one of the two clusters present on the platform.
*/
if (cluster_id >= PLATFORM_CLUSTER_COUNT)
return PSCI_E_NOT_PRESENT;
/*
* Validate cpu_id by checking whether it represents a CPU in
* one of the two clusters present on the platform.
*/
if (cpu_id >= PLATFORM_MAX_CPUS_PER_CLUSTER)
return PSCI_E_NOT_PRESENT;
/* calculate the core position */
pos = cpu_id + (cluster_id << 2);
/* check for non-existent CPUs */
if (pos == TEGRA186_CLUSTER0_CORE2 || pos == TEGRA186_CLUSTER0_CORE3)
return PSCI_E_NOT_PRESENT;
return pos;
}