nold/Lockpick_RCM
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Lockpick_RCM/source/soc/hw_init.c

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/*
* Copyright (c) 2018 naehrwert
* Copyright (c) 2018-2019 CTCaer
*
* 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 <string.h>
#include "hw_init.h"
#include "bpmp.h"
#include "clock.h"
#include "fuse.h"
#include "gpio.h"
#include "i2c.h"
#include "pinmux.h"
#include "pmc.h"
#include "t210.h"
#include "../gfx/di.h"
#include "../mem/mc.h"
#include "../mem/sdram.h"
#include "../power/max77620.h"
#include "../power/max7762x.h"
#include "../sec/se.h"
#include "../sec/se_t210.h"
#include "../storage/sdmmc.h"
#include "../utils/util.h"
extern sdmmc_t sd_sdmmc;
extern boot_cfg_t b_cfg;
/*
* CLK_OSC - 38.4 MHz crystal.
* CLK_M - 19.2 MHz (osc/2).
* CLK_S - 32.768 KHz (from PMIC).
* SCLK - 204MHz init (-> 408MHz -> OC).
* HCLK - 204MHz init (-> 408MHz -> OC).
* PCLK - 68MHz init (-> 136MHz -> OC/4).
*/
void _config_oscillators()
{
CLOCK(CLK_RST_CONTROLLER_SPARE_REG0) = (CLOCK(CLK_RST_CONTROLLER_SPARE_REG0) & 0xFFFFFFF3) | 4; // Set CLK_M_DIVISOR to 2.
SYSCTR0(SYSCTR0_CNTFID0) = 19200000; // Set counter frequency.
TMR(TIMERUS_USEC_CFG) = 0x45F; // For 19.2MHz clk_m.
CLOCK(CLK_RST_CONTROLLER_OSC_CTRL) = 0x50000071; // Set OSC to 38.4MHz and drive strength.
PMC(APBDEV_PMC_OSC_EDPD_OVER) = (PMC(APBDEV_PMC_OSC_EDPD_OVER) & 0xFFFFFF81) | 0xE; // Set LP0 OSC drive strength.
PMC(APBDEV_PMC_OSC_EDPD_OVER) = (PMC(APBDEV_PMC_OSC_EDPD_OVER) & 0xFFBFFFFF) | PMC_OSC_EDPD_OVER_OSC_CTRL_OVER;
PMC(APBDEV_PMC_CNTRL2) = (PMC(APBDEV_PMC_CNTRL2) & 0xFFFFEFFF) | PMC_CNTRL2_HOLD_CKE_LOW_EN;
PMC(APBDEV_PMC_SCRATCH188) = (PMC(APBDEV_PMC_SCRATCH188) & 0xFCFFFFFF) | (4 << 23); // LP0 EMC2TMC_CFG_XM2COMP_PU_VREF_SEL_RANGE.
CLOCK(CLK_RST_CONTROLLER_CLK_SYSTEM_RATE) = 0x10; // Set HCLK div to 2 and PCLK div to 1.
CLOCK(CLK_RST_CONTROLLER_PLLMB_BASE) &= 0xBFFFFFFF; // PLLMB disable.
PMC(APBDEV_PMC_TSC_MULT) = (PMC(APBDEV_PMC_TSC_MULT) & 0xFFFF0000) | 0x249F; //0x249F = 19200000 * (16 / 32.768 kHz)
CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_SYS) = 0; // Set SCLK div to 1.
CLOCK(CLK_RST_CONTROLLER_SCLK_BURST_POLICY) = 0x20004444; // Set clk source to Run and PLLP_OUT2 (204MHz).
CLOCK(CLK_RST_CONTROLLER_SUPER_SCLK_DIVIDER) = 0x80000000; // Enable SUPER_SDIV to 1.
CLOCK(CLK_RST_CONTROLLER_CLK_SYSTEM_RATE) = 2; // Set HCLK div to 1 and PCLK div to 3.
}
void _config_gpios()
{
PINMUX_AUX(PINMUX_AUX_UART2_TX) = 0;
PINMUX_AUX(PINMUX_AUX_UART3_TX) = 0;
// Set Joy-Con IsAttached direction.
PINMUX_AUX(PINMUX_AUX_GPIO_PE6) = PINMUX_INPUT_ENABLE;
PINMUX_AUX(PINMUX_AUX_GPIO_PH6) = PINMUX_INPUT_ENABLE;
// Set pin mode for Joy-Con IsAttached and UARTB/C TX pins.
#if !defined (DEBUG_UART_PORT) || DEBUG_UART_PORT != UART_B
gpio_config(GPIO_PORT_G, GPIO_PIN_0, GPIO_MODE_GPIO);
#endif
#if !defined (DEBUG_UART_PORT) || DEBUG_UART_PORT != UART_C
gpio_config(GPIO_PORT_D, GPIO_PIN_1, GPIO_MODE_GPIO);
#endif
// Set Joy-Con IsAttached mode.
gpio_config(GPIO_PORT_E, GPIO_PIN_6, GPIO_MODE_GPIO);
gpio_config(GPIO_PORT_H, GPIO_PIN_6, GPIO_MODE_GPIO);
// Enable input logic for Joy-Con IsAttached and UARTB/C TX pins.
gpio_output_enable(GPIO_PORT_G, GPIO_PIN_0, GPIO_OUTPUT_DISABLE);
gpio_output_enable(GPIO_PORT_D, GPIO_PIN_1, GPIO_OUTPUT_DISABLE);
gpio_output_enable(GPIO_PORT_E, GPIO_PIN_6, GPIO_OUTPUT_DISABLE);
gpio_output_enable(GPIO_PORT_H, GPIO_PIN_6, GPIO_OUTPUT_DISABLE);
pinmux_config_i2c(I2C_1);
pinmux_config_i2c(I2C_5);
pinmux_config_uart(0);
// Configure volume up/down as inputs.
gpio_config(GPIO_PORT_X, GPIO_PIN_6, GPIO_MODE_GPIO);
gpio_config(GPIO_PORT_X, GPIO_PIN_7, GPIO_MODE_GPIO);
gpio_output_enable(GPIO_PORT_X, GPIO_PIN_6, GPIO_OUTPUT_DISABLE);
gpio_output_enable(GPIO_PORT_X, GPIO_PIN_7, GPIO_OUTPUT_DISABLE);
// Configure HOME as inputs.
// PINMUX_AUX(PINMUX_AUX_BUTTON_HOME) = PINMUX_PULL_UP | PINMUX_INPUT_ENABLE;
// gpio_config(GPIO_PORT_Y, GPIO_PIN_1, GPIO_MODE_GPIO);
}
void _config_pmc_scratch()
{
PMC(APBDEV_PMC_SCRATCH20) &= 0xFFF3FFFF; // Unset Debug console from Customer Option.
PMC(APBDEV_PMC_SCRATCH190) &= 0xFFFFFFFE; // Unset DATA_DQ_E_IVREF EMC_PMACRO_DATA_PAD_TX_CTRL
PMC(APBDEV_PMC_SECURE_SCRATCH21) |= PMC_FUSE_PRIVATEKEYDISABLE_TZ_STICKY_BIT;
}
void _mbist_workaround()
{
CLOCK(CLK_RST_CONTROLLER_CLK_OUT_ENB_V) |= (1 << 10); // Enable AHUB clock.
CLOCK(CLK_RST_CONTROLLER_CLK_OUT_ENB_Y) |= (1 << 6); // Enable APE clock.
// Set mux output to SOR1 clock switch.
CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_SOR1) = (CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_SOR1) | 0x8000) & 0xFFFFBFFF;
// Enabled PLLD and set csi to PLLD for test pattern generation.
CLOCK(CLK_RST_CONTROLLER_PLLD_BASE) |= 0x40800000;
// Clear per-clock resets.
CLOCK(CLK_RST_CONTROLLER_RST_DEV_Y_CLR) = 0x40; // Clear reset APE.
CLOCK(CLK_RST_CONTROLLER_RST_DEV_X_CLR) = 0x40000; // Clear reset VIC.
CLOCK(CLK_RST_CONTROLLER_RST_DEV_L_CLR) = 0x18000000; // Clear reset DISP1, HOST1X.
usleep(2);
// I2S channels to master and disable SLCG.
I2S(I2S1_CTRL) |= I2S_CTRL_MASTER_EN;
I2S(I2S1_CG) &= ~I2S_CG_SLCG_ENABLE;
I2S(I2S2_CTRL) |= I2S_CTRL_MASTER_EN;
I2S(I2S2_CG) &= ~I2S_CG_SLCG_ENABLE;
I2S(I2S3_CTRL) |= I2S_CTRL_MASTER_EN;
I2S(I2S3_CG) &= ~I2S_CG_SLCG_ENABLE;
I2S(I2S4_CTRL) |= I2S_CTRL_MASTER_EN;
I2S(I2S4_CG) &= ~I2S_CG_SLCG_ENABLE;
I2S(I2S5_CTRL) |= I2S_CTRL_MASTER_EN;
I2S(I2S5_CG) &= ~I2S_CG_SLCG_ENABLE;
DISPLAY_A(_DIREG(DC_COM_DSC_TOP_CTL)) |= 4; // DSC_SLCG_OVERRIDE.
VIC(0x8C) = 0xFFFFFFFF;
usleep(2);
// Set per-clock reset.
CLOCK(CLK_RST_CONTROLLER_RST_DEV_Y_SET) = 0x40; // Set reset APE.
CLOCK(CLK_RST_CONTROLLER_RST_DEV_L_SET) = 0x18000000; // Set reset DISP1, HOST1x.
CLOCK(CLK_RST_CONTROLLER_RST_DEV_X_SET) = 0x40000; // Set reset VIC.
// Enable specific clocks and disable all others.
CLOCK(CLK_RST_CONTROLLER_CLK_OUT_ENB_H) = 0xC0; // Enable clock PMC, FUSE.
CLOCK(CLK_RST_CONTROLLER_CLK_OUT_ENB_L) = 0x80000130; // Enable clock RTC, TMR, GPIO, BPMP_CACHE.
//CLOCK(CLK_RST_CONTROLLER_CLK_OUT_ENB_L) = 0x80400130; // Keep USB data ON.
CLOCK(CLK_RST_CONTROLLER_CLK_OUT_ENB_U) = 0x1F00200; // Enable clock CSITE, IRAMA, IRAMB, IRAMC, IRAMD, BPMP_CACHE_RAM.
CLOCK(CLK_RST_CONTROLLER_CLK_OUT_ENB_V) = 0x80400808; // Enable clock MSELECT, APB2APE, SPDIF_DOUBLER, SE.
CLOCK(CLK_RST_CONTROLLER_CLK_OUT_ENB_W) = 0x402000FC; // Enable clock PCIERX0, PCIERX1, PCIERX2, PCIERX3, PCIERX4, PCIERX5, ENTROPY, MC1.
CLOCK(CLK_RST_CONTROLLER_CLK_OUT_ENB_X) = 0x23000780; // Enable clock MC_CAPA, MC_CAPB, MC_CPU, MC_BBC, DBGAPB, HPLL_ADSP, PLLG_REF.
CLOCK(CLK_RST_CONTROLLER_CLK_OUT_ENB_Y) = 0x300; // Enable clock MC_CDPA, MC_CCPA.
// Disable clock gate overrides.
CLOCK(CLK_RST_CONTROLLER_LVL2_CLK_GATE_OVRA) = 0;
CLOCK(CLK_RST_CONTROLLER_LVL2_CLK_GATE_OVRB) = 0;
CLOCK(CLK_RST_CONTROLLER_LVL2_CLK_GATE_OVRC) = 0;
CLOCK(CLK_RST_CONTROLLER_LVL2_CLK_GATE_OVRD) = 0;
CLOCK(CLK_RST_CONTROLLER_LVL2_CLK_GATE_OVRE) = 0;
// Set child clock sources.
CLOCK(CLK_RST_CONTROLLER_PLLD_BASE) &= 0x1F7FFFFF; // Disable PLLD and set reference clock and csi clock.
CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_SOR1) &= 0xFFFF3FFF; // Set SOR1 to automatic muxing of safe clock (24MHz) or SOR1 clk switch.
CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_VI) = (CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_VI) & 0x1FFFFFFF) | 0x80000000; // Set clock source to PLLP_OUT.
CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_HOST1X) = (CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_HOST1X) & 0x1FFFFFFF) | 0x80000000; // Set clock source to PLLP_OUT.
CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_NVENC) = (CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_NVENC) & 0x1FFFFFFF) | 0x80000000; // Set clock source to PLLP_OUT.
}
void _config_se_brom()
{
// Skip SBK/SSK if sept was run.
if (!(b_cfg.boot_cfg & BOOT_CFG_SEPT_RUN))
{
// Bootrom part we skipped.
u32 sbk[4] = {
FUSE(FUSE_PRIVATE_KEY0),
FUSE(FUSE_PRIVATE_KEY1),
FUSE(FUSE_PRIVATE_KEY2),
FUSE(FUSE_PRIVATE_KEY3)
};
// Set SBK to slot 14.
se_aes_key_set(14, sbk, 0x10);
// Lock SBK from being read.
SE(SE_KEY_TABLE_ACCESS_REG_OFFSET + 14 * 4) = 0x7E;
// Lock SSK (although it's not set and unused anyways).
SE(SE_KEY_TABLE_ACCESS_REG_OFFSET + 15 * 4) = 0x7E;
}
// This memset needs to happen here, else TZRAM will behave weirdly later on.
memset((void *)TZRAM_BASE, 0, 0x10000);
PMC(APBDEV_PMC_CRYPTO_OP) = PMC_CRYPTO_OP_SE_ENABLE;
SE(SE_INT_STATUS_REG_OFFSET) = 0x1F;
// Clear the boot reason to avoid problems later
PMC(APBDEV_PMC_SCRATCH200) = 0x0;
PMC(APBDEV_PMC_RST_STATUS) = 0x0;
APB_MISC(APB_MISC_PP_STRAPPING_OPT_A) = (APB_MISC(APB_MISC_PP_STRAPPING_OPT_A) & 0xF0) | (7 << 10);
}
void _config_regulators()
{
i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_CNFGBBC, MAX77620_CNFGBBC_RESISTOR_1K);
i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_ONOFFCNFG1,
(1 << 6) | (1 << MAX77620_ONOFFCNFG1_MRT_SHIFT)); // PWR delay for forced shutdown off.
i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_FPS_CFG0,
(7 << MAX77620_FPS_TIME_PERIOD_SHIFT));
i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_FPS_CFG1,
(7 << MAX77620_FPS_TIME_PERIOD_SHIFT) | (1 << MAX77620_FPS_EN_SRC_SHIFT));
i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_FPS_CFG2,
(7 << MAX77620_FPS_TIME_PERIOD_SHIFT));
max77620_regulator_config_fps(REGULATOR_LDO4);
max77620_regulator_config_fps(REGULATOR_LDO8);
max77620_regulator_config_fps(REGULATOR_SD0);
max77620_regulator_config_fps(REGULATOR_SD1);
max77620_regulator_config_fps(REGULATOR_SD3);
i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_FPS_GPIO3,
(4 << MAX77620_FPS_TIME_PERIOD_SHIFT) | (2 << MAX77620_FPS_PD_PERIOD_SHIFT)); // 3.x+
// Set vdd_core voltage to 1.125V
max77620_regulator_set_voltage(REGULATOR_SD0, 1125000);
// Fix CPU/GPU after a Linux warmboot.
i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_GPIO5, 2);
i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_GPIO6, 2);
i2c_send_byte(I2C_5, MAX77621_CPU_I2C_ADDR, MAX77621_VOUT_REG, MAX77621_VOUT_0_95V); // Disable power.
i2c_send_byte(I2C_5, MAX77621_CPU_I2C_ADDR, MAX77621_VOUT_DVC_REG, MAX77621_VOUT_ENABLE | MAX77621_VOUT_1_09V); // Enable DVS power.
i2c_send_byte(I2C_5, MAX77621_CPU_I2C_ADDR, MAX77621_CONTROL1_REG, MAX77621_RAMP_50mV_PER_US);
i2c_send_byte(I2C_5, MAX77621_CPU_I2C_ADDR, MAX77621_CONTROL2_REG,
MAX77621_T_JUNCTION_120 | MAX77621_FT_ENABLE | MAX77621_CKKADV_TRIP_75mV_PER_US_HIST_DIS |
MAX77621_CKKADV_TRIP_150mV_PER_US | MAX77621_INDUCTOR_NOMINAL);
i2c_send_byte(I2C_5, MAX77621_GPU_I2C_ADDR, MAX77621_VOUT_REG, MAX77621_VOUT_0_95V); // Disable power.
i2c_send_byte(I2C_5, MAX77621_GPU_I2C_ADDR, MAX77621_VOUT_DVC_REG, MAX77621_VOUT_ENABLE | MAX77621_VOUT_1_09V); // Enable DVS power.
i2c_send_byte(I2C_5, MAX77621_GPU_I2C_ADDR, MAX77621_CONTROL1_REG, MAX77621_RAMP_50mV_PER_US);
i2c_send_byte(I2C_5, MAX77621_GPU_I2C_ADDR, MAX77621_CONTROL2_REG,
MAX77621_T_JUNCTION_120 | MAX77621_FT_ENABLE | MAX77621_CKKADV_TRIP_75mV_PER_US_HIST_DIS |
MAX77621_CKKADV_TRIP_150mV_PER_US | MAX77621_INDUCTOR_NOMINAL);
// Disable low battery shutdown monitor.
max77620_low_battery_monitor_config();
}
void config_hw()
{
// Bootrom stuff we skipped by going through rcm.
_config_se_brom();
//FUSE(FUSE_PRIVATEKEYDISABLE) = 0x11;
SYSREG(AHB_AHB_SPARE_REG) &= 0xFFFFFF9F; // Unset APB2JTAG_OVERRIDE_EN and OBS_OVERRIDE_EN.
PMC(APBDEV_PMC_SCRATCH49) = PMC(APBDEV_PMC_SCRATCH49) & 0xFFFFFFFC;
_mbist_workaround();
clock_enable_se();
// Enable fuse clock.
clock_enable_fuse(true);
// Disable fuse programming.
fuse_disable_program();
mc_enable();
_config_oscillators();
APB_MISC(APB_MISC_PP_PINMUX_GLOBAL) = 0;
_config_gpios();
clock_enable_cl_dvfs();
clock_enable_i2c(I2C_1);
clock_enable_i2c(I2C_5);
clock_enable_tzram();
i2c_init(I2C_1);
i2c_init(I2C_5);
_config_regulators();
_config_pmc_scratch(); // Missing from 4.x+
CLOCK(CLK_RST_CONTROLLER_SCLK_BURST_POLICY) = 0x20003333; // Set SCLK to PLLP_OUT (408MHz).
sdram_init();
bpmp_mmu_enable();
mc_enable_ahb_redirect();
}
void reconfig_hw_workaround(bool extra_reconfig, u32 magic)
{
// Flush and disable MMU.
bpmp_mmu_disable();
bpmp_clk_rate_set(BPMP_CLK_NORMAL);
// Re-enable clocks to Audio Processing Engine as a workaround to hanging.
CLOCK(CLK_RST_CONTROLLER_CLK_OUT_ENB_V) |= (1 << 10); // Enable AHUB clock.
CLOCK(CLK_RST_CONTROLLER_CLK_OUT_ENB_Y) |= (1 << 6); // Enable APE clock.
if (extra_reconfig)
{
msleep(10);
PMC(APBDEV_PMC_PWR_DET_VAL) |= PMC_PWR_DET_SDMMC1_IO_EN;
clock_disable_cl_dvfs();
// Disable Joy-con GPIOs.
gpio_config(GPIO_PORT_G, GPIO_PIN_0, GPIO_MODE_SPIO);
gpio_config(GPIO_PORT_D, GPIO_PIN_1, GPIO_MODE_SPIO);
gpio_config(GPIO_PORT_E, GPIO_PIN_6, GPIO_MODE_SPIO);
gpio_config(GPIO_PORT_H, GPIO_PIN_6, GPIO_MODE_SPIO);
}
// Power off display.
display_end();
// Enable clock to USBD and init SDMMC1 to avoid hangs with bad hw inits.
if (magic == 0xBAADF00D)
{
CLOCK(CLK_RST_CONTROLLER_CLK_OUT_ENB_L) |= (1 << 22);
sdmmc_init(&sd_sdmmc, SDMMC_1, SDMMC_POWER_3_3, SDMMC_BUS_WIDTH_1, 5, 0);
clock_disable_cl_dvfs();
msleep(200);
}
}
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