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hekate/nyx/nyx_gui/soc/cluster.c

143 lines
4.6 KiB
C

/*
* Copyright (c) 2018 naehrwert
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "../soc/cluster.h"
#include "../soc/i2c.h"
#include "../soc/clock.h"
#include "../utils/util.h"
#include "../soc/pmc.h"
#include "../soc/t210.h"
#include "../power/max77620.h"
#include "../power/max7762x.h"
#pragma GCC push_options
#pragma GCC target ("thumb")
void _cluster_enable_power()
{
u8 tmp = i2c_recv_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_AME_GPIO); // Get current pinmuxing
i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_AME_GPIO, tmp & ~(1 << 5)); // Disable GPIO5 pinmuxing.
i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_GPIO5, MAX77620_CNFG_GPIO_DRV_PUSHPULL | MAX77620_CNFG_GPIO_OUTPUT_VAL_HIGH);
// Enable cores power.
// 1-3.x: MAX77621_NFSR_ENABLE.
i2c_send_byte(I2C_5, MAX77621_CPU_I2C_ADDR, MAX77621_CONTROL1_REG,
MAX77621_AD_ENABLE | MAX77621_NFSR_ENABLE | MAX77621_SNS_ENABLE | MAX77621_RAMP_12mV_PER_US);
// 1.0.0-3.x: MAX77621_T_JUNCTION_120 | MAX77621_CKKADV_TRIP_DISABLE | MAX77621_INDUCTOR_NOMINAL.
i2c_send_byte(I2C_5, MAX77621_CPU_I2C_ADDR, MAX77621_CONTROL2_REG,
MAX77621_T_JUNCTION_120 | MAX77621_WDTMR_ENABLE | MAX77621_CKKADV_TRIP_75mV_PER_US| MAX77621_INDUCTOR_NOMINAL);
i2c_send_byte(I2C_5, MAX77621_CPU_I2C_ADDR, MAX77621_VOUT_REG, MAX77621_VOUT_ENABLE | MAX77621_VOUT_0_95V);
i2c_send_byte(I2C_5, MAX77621_CPU_I2C_ADDR, MAX77621_VOUT_DVC_REG, MAX77621_VOUT_ENABLE | MAX77621_VOUT_0_95V);
}
int _cluster_pmc_enable_partition(u32 part, int enable)
{
u32 part_mask = 1 << part;
u32 desired_state = enable << part;
// Check if the partition has the state we want.
if ((PMC(APBDEV_PMC_PWRGATE_STATUS) & part_mask) == desired_state)
return 1;
u32 i = 5001;
while (PMC(APBDEV_PMC_PWRGATE_TOGGLE) & 0x100)
{
usleep(1);
i--;
if (i < 1)
return 0;
}
// Toggle power gating.
PMC(APBDEV_PMC_PWRGATE_TOGGLE) = part | 0x100;
i = 5001;
while (i > 0)
{
if ((PMC(APBDEV_PMC_PWRGATE_STATUS) & part_mask) == desired_state)
break;
usleep(1);
i--;
}
return 1;
}
void cluster_boot_cpu0(u32 entry)
{
// Set ACTIVE_CLUSER to FAST.
FLOW_CTLR(FLOW_CTLR_BPMP_CLUSTER_CONTROL) &= 0xFFFFFFFE;
_cluster_enable_power();
if (!(CLOCK(CLK_RST_CONTROLLER_PLLX_BASE) & 0x40000000))
{
CLOCK(CLK_RST_CONTROLLER_PLLX_MISC_3) &= 0xFFFFFFF7;
usleep(2);
CLOCK(CLK_RST_CONTROLLER_PLLX_BASE) = 0x80404E02;
CLOCK(CLK_RST_CONTROLLER_PLLX_BASE) = 0x404E02;
CLOCK(CLK_RST_CONTROLLER_PLLX_MISC) = (CLOCK(CLK_RST_CONTROLLER_PLLX_MISC) & 0xFFFBFFFF) | 0x40000;
CLOCK(CLK_RST_CONTROLLER_PLLX_BASE) = 0x40404E02;
}
while (!(CLOCK(CLK_RST_CONTROLLER_PLLX_BASE) & 0x8000000))
;
// Configure MSELECT source and enable clock.
CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_MSELECT) = (CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_MSELECT) & 0x1FFFFF00) | 6;
CLOCK(CLK_RST_CONTROLLER_CLK_OUT_ENB_V) = (CLOCK(CLK_RST_CONTROLLER_CLK_OUT_ENB_V) & 0xFFFFFFF7) | 8;
// Configure initial CPU clock frequency and enable clock.
CLOCK(CLK_RST_CONTROLLER_CCLK_BURST_POLICY) = 0x20008888;
CLOCK(CLK_RST_CONTROLLER_SUPER_CCLK_DIVIDER) = 0x80000000;
CLOCK(CLK_RST_CONTROLLER_CLK_ENB_V_SET) = 1;
clock_enable_coresight();
// CAR2PMC_CPU_ACK_WIDTH should be set to 0.
CLOCK(CLK_RST_CONTROLLER_CPU_SOFTRST_CTRL2) &= 0xFFFFF000;
// Enable CPU rail.
_cluster_pmc_enable_partition(0, 1);
// Enable cluster 0 non-CPU.
_cluster_pmc_enable_partition(15, 1);
// Enable CE0.
_cluster_pmc_enable_partition(14, 1);
// Request and wait for RAM repair.
FLOW_CTLR(FLOW_CTLR_RAM_REPAIR) = 1;
while (!(FLOW_CTLR(FLOW_CTLR_RAM_REPAIR) & 2))
;
EXCP_VEC(EVP_CPU_RESET_VECTOR) = 0;
// Set reset vector.
SB(SB_AA64_RESET_LOW) = entry | SB_AA64_RST_AARCH64_MODE_EN;
SB(SB_AA64_RESET_HIGH) = 0;
// Non-secure reset vector write disable.
SB(SB_CSR) = SB_CSR_NS_RST_VEC_WR_DIS;
(void)SB(SB_CSR);
// Clear MSELECT reset.
CLOCK(CLK_RST_CONTROLLER_RST_DEVICES_V) &= 0xFFFFFFF7;
// Clear NONCPU reset.
CLOCK(CLK_RST_CONTROLLER_RST_CPUG_CMPLX_CLR) = 0x20000000;
// Clear CPU0 reset.
// < 5.x: 0x411F000F, Clear CPU{0,1,2,3} POR and CORE, CX0, L2, and DBG reset.
CLOCK(CLK_RST_CONTROLLER_RST_CPUG_CMPLX_CLR) = 0x41010001;
}
#pragma GCC pop_options