/*
* Copyright (c) 2018 naehrwert
* Copyright (c) 2018 CTCaer
* Copyright (c) 2018-2020 Atmosphère-NX
*
* 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 "hwinit.h"
#include "apb_misc.h"
#include "car.h"
#include "di.h"
#include "fuse.h"
#include "gpio.h"
#include "i2c.h"
#include "max77620.h"
#include "mc.h"
#include "pinmux.h"
#include "pmc.h"
#include "se.h"
#include "sdram.h"
#include "sysctr0.h"
#include "sysreg.h"
#include "timers.h"
#include "uart.h"
void config_oscillators()
{
volatile tegra_car_t *car = car_get_regs();
volatile tegra_pmc_t *pmc = pmc_get_regs();
car->spare_reg0 = ((car->spare_reg0 & 0xFFFFFFF3) | 4);
SYSCTR0_CNTFID0_0 = 19200000;
TIMERUS_USEC_CFG_0 = 0x45F;
car->osc_ctrl = 0x50000071;
pmc->osc_edpd_over = ((pmc->osc_edpd_over & 0xFFFFFF81) | 0xE);
pmc->osc_edpd_over = ((pmc->osc_edpd_over & 0xFFBFFFFF) | 0x400000);
pmc->cntrl2 = ((pmc->cntrl2 & 0xFFFFEFFF) | 0x1000);
pmc->scratch188 = ((pmc->scratch188 & 0xFCFFFFFF) | 0x2000000);
car->clk_sys_rate = 0x10;
car->pllmb_base &= 0xBFFFFFFF;
pmc->tsc_mult = ((pmc->tsc_mult & 0xFFFF0000) | 0x249F); /* 0x249F = 19200000 * (16 / 32.768 kHz) */
car->sclk_brst_pol = 0x20004444;
car->super_sclk_div = 0x80000000;
car->clk_sys_rate = 2;
}
void config_gpios()
{
volatile tegra_pinmux_t *pinmux = pinmux_get_regs();
pinmux->uart2_tx = 0;
pinmux->uart3_tx = 0;
pinmux->pe6 = PINMUX_INPUT;
pinmux->ph6 = PINMUX_INPUT;
gpio_configure_mode(TEGRA_GPIO(G, 0), GPIO_MODE_GPIO);
gpio_configure_mode(TEGRA_GPIO(D, 1), GPIO_MODE_GPIO);
gpio_configure_mode(TEGRA_GPIO(E, 6), GPIO_MODE_GPIO);
gpio_configure_mode(TEGRA_GPIO(H, 6), GPIO_MODE_GPIO);
gpio_configure_direction(TEGRA_GPIO(G, 0), GPIO_DIRECTION_INPUT);
gpio_configure_direction(TEGRA_GPIO(D, 1), GPIO_DIRECTION_INPUT);
gpio_configure_direction(TEGRA_GPIO(E, 6), GPIO_DIRECTION_INPUT);
gpio_configure_direction(TEGRA_GPIO(H, 6), GPIO_DIRECTION_INPUT);
i2c_config(I2C_1);
i2c_config(I2C_5);
uart_config(UART_A);
/* Configure volume up/down as inputs. */
gpio_configure_mode(GPIO_BUTTON_VOL_UP, GPIO_MODE_GPIO);
gpio_configure_mode(GPIO_BUTTON_VOL_DOWN, GPIO_MODE_GPIO);
gpio_configure_direction(GPIO_BUTTON_VOL_UP, GPIO_DIRECTION_INPUT);
gpio_configure_direction(GPIO_BUTTON_VOL_DOWN, GPIO_DIRECTION_INPUT);
}
void config_pmc_scratch()
{
volatile tegra_pmc_t *pmc = pmc_get_regs();
pmc->scratch20 &= 0xFFF3FFFF;
pmc->scratch190 &= 0xFFFFFFFE;
pmc->secure_scratch21 |= 0x10;
}
void mbist_workaround()
{
volatile tegra_car_t *car = car_get_regs();
car->clk_source_sor1 = ((car->clk_source_sor1 | 0x8000) & 0xFFFFBFFF);
car->plld_base |= 0x40800000u;
car->rst_dev_y_clr = 0x40;
car->rst_dev_x_clr = 0x40000;
car->rst_dev_l_clr = 0x18000000;
udelay(2);
/* Setup I2S. */
MAKE_I2S_REG(0x0A0) |= 0x400;
MAKE_I2S_REG(0x088) &= 0xFFFFFFFE;
MAKE_I2S_REG(0x1A0) |= 0x400;
MAKE_I2S_REG(0x188) &= 0xFFFFFFFE;
MAKE_I2S_REG(0x2A0) |= 0x400;
MAKE_I2S_REG(0x288) &= 0xFFFFFFFE;
MAKE_I2S_REG(0x3A0) |= 0x400;
MAKE_I2S_REG(0x388) &= 0xFFFFFFFE;
MAKE_I2S_REG(0x4A0) |= 0x400;
MAKE_I2S_REG(0x488) &= 0xFFFFFFFE;
MAKE_DI_REG(DC_COM_DSC_TOP_CTL) |= 4;
MAKE_VIC_REG(0x8C) = 0xFFFFFFFF;
udelay(2);
/* Set devices in reset. */
car->rst_dev_y_set = 0x40;
car->rst_dev_l_set = 0x18000000;
car->rst_dev_x_set = 0x40000;
/* Clock out enables. */
car->clk_out_enb_h = 0xC0;
car->clk_out_enb_l = 0x80000130;
car->clk_out_enb_u = 0x1F00200;
car->clk_out_enb_v = 0x80400808;
car->clk_out_enb_w = 0x402000FC;
car->clk_out_enb_x = 0x23000780;
car->clk_out_enb_y = 0x300;
/* LVL2 clock gate overrides. */
car->lvl2_clk_gate_ovra = 0;
car->lvl2_clk_gate_ovrb = 0;
car->lvl2_clk_gate_ovrc = 0;
car->lvl2_clk_gate_ovrd = 0;
car->lvl2_clk_gate_ovre = 0;
/* Configure clock sources. */
car->plld_base &= 0x1F7FFFFF;
car->clk_source_sor1 &= 0xFFFF3FFF;
car->clk_source_vi = ((car->clk_source_vi & 0x1FFFFFFF) | 0x80000000);
car->clk_source_host1x = ((car->clk_source_host1x & 0x1FFFFFFF) | 0x80000000);
car->clk_source_nvenc = ((car->clk_source_nvenc & 0x1FFFFFFF) | 0x80000000);
}
void config_se_brom()
{
volatile tegra_fuse_chip_t *fuse_chip = fuse_chip_get_regs();
volatile tegra_se_t *se = se_get_regs();
volatile tegra_pmc_t *pmc = pmc_get_regs();
/* Bootrom part we skipped. */
uint32_t sbk[4] = {fuse_chip->FUSE_PRIVATE_KEY[0], fuse_chip->FUSE_PRIVATE_KEY[1], fuse_chip->FUSE_PRIVATE_KEY[2], fuse_chip->FUSE_PRIVATE_KEY[3]};
set_aes_keyslot(0xE, sbk, 0x10);
/* Lock SBK from being read. */
se->SE_CRYPTO_KEYTABLE_ACCESS[0xE] = 0x7E;
/* This memset needs to happen here, else TZRAM will behave weirdly later on. */
memset((void *)0x7C010000, 0, 0x10000);
pmc->crypto_op = 0;
se->SE_INT_STATUS = 0x1F;
/* Lock SSK (although it's not set and unused anyways). */
se->SE_CRYPTO_KEYTABLE_ACCESS[0xF] = 0x7E;
/* Clear the boot reason to avoid problems later */
pmc->scratch200 = 0;
pmc->reset_status = 0;
}
void nx_hwinit()
{
volatile tegra_pmc_t *pmc = pmc_get_regs();
volatile tegra_car_t *car = car_get_regs();
/* Bootrom stuff we skipped by going through RCM. */
config_se_brom();
AHB_AHB_SPARE_REG_0 &= 0xFFFFFF9F;
pmc->scratch49 = (((pmc->scratch49 >> 1) << 1) & 0xFFFFFFFD);
/* Apply the memory built-in self test workaround. */
mbist_workaround();
/* Reboot SE. */
clkrst_reboot(CARDEVICE_SE);
/* Initialize the fuse driver. */
fuse_init();
/* Initialize the memory controller. */
mc_enable();
/* Configure oscillators. */
config_oscillators();
/* Disable pinmux tristate input clamping. */
APB_MISC_PP_PINMUX_GLOBAL_0 = 0;
/* Configure GPIOs. */
/* NOTE: [3.0.0+] Part of the GPIO configuration is skipped if the unit is SDEV. */
/* NOTE: [6.0.0+] The GPIO configuration's order was changed a bit. */
config_gpios();
/* Uncomment for UART debugging. */
/*
clkrst_reboot(CARDEVICE_UARTC);
uart_init(UART_C, 115200);
*/
/* Reboot CL-DVFS. */
clkrst_reboot(CARDEVICE_CL_DVFS);
/* Reboot I2C1. */
clkrst_reboot(CARDEVICE_I2C1);
/* Reboot I2C5. */
clkrst_reboot(CARDEVICE_I2C5);
/* Reboot SE. */
/* NOTE: [4.0.0+] This was removed. */
/* clkrst_reboot(CARDEVICE_SE); */
/* Reboot TZRAM. */
clkrst_reboot(CARDEVICE_TZRAM);
/* Initialize I2C1. */
/* NOTE: [6.0.0+] This was moved to after the PMIC is configured. */
i2c_init(I2C_1);
/* Initialize I2C5. */
i2c_init(I2C_5);
/* Configure the PMIC. */
uint8_t val = 0x40;
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_CNFGBBC, &val, 1);
val = 0x60;
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_ONOFFCNFG1, &val, 1);
val = 0x38;
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_FPS_CFG0, &val, 1);
val = 0x3A;
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_FPS_CFG1, &val, 1);
val = 0x38;
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_FPS_CFG2, &val, 1);
val = 0xF;
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_FPS_LDO4, &val, 1);
val = 0xC7;
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_FPS_LDO8, &val, 1);
val = 0x4F;
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_FPS_SD0, &val, 1);
val = 0x29;
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_FPS_SD1, &val, 1);
val = 0x1B;
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_FPS_SD3, &val, 1);
/* NOTE: [3.0.0+] This was added. */
val = 0x22;
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_FPS_GPIO3, &val, 1);
/* TODO: In 3.x+, if the unit is SDEV, the MBLPD bit is set. */
/*
i2c_query(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_CNFGGLBL1, &val, 1);
val |= 0x40;
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_CNFGGLBL1, &val, 1);
*/
/* Configure SD0 voltage. */
val = 42; /* 42 = (1125000 - 600000) / 12500 -> 1.125V */
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_SD0, &val, 1);
/* Configure and lock PMC scratch registers. */
/* NOTE: [4.0.0+] This was removed. */
config_pmc_scratch();
/* Set super clock burst policy. */
car->sclk_brst_pol = ((car->sclk_brst_pol & 0xFFFF8888) | 0x3333);
/* Configure memory controller carveouts. */
/* NOTE: [4.0.0+] This is now done in the Secure Monitor. */
/* mc_config_carveout(); */
/* Initialize SDRAM. */
sdram_init();
/* Save SDRAM LP0 parameters. */
sdram_lp0_save_params(sdram_get_params());
}
