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sept: fixes to work with new hwinit/etc

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This commit is contained in:
Michael Scire 2021-01-04 17:18:13 -08:00
parent be897d728d
commit feed7550f5
13 changed files with 144 additions and 206 deletions
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6
fusee/fusee-secondary/linker.ld
View file

@ -15,14 +15,14 @@ MEMORY
{
main : ORIGIN = 0xF0000000, LENGTH = 0x10000000
high_iram : ORIGIN = 0x40010000, LENGTH = 0x8000
low_iram : ORIGIN = 0x40003000, LENGTH = 0x8000
low_iram : ORIGIN = 0x40002000, LENGTH = 0x6000
}
SECTIONS
{
PROVIDE(__start__ = 0xF0000000);
PROVIDE(__stack_top__ = 0x40020000);
PROVIDE(__stack_bottom__ = 0x40018000);
PROVIDE(__stack_top__ = 0x40010000);
PROVIDE(__stack_bottom__ = 0x40008000);
PROVIDE(__heap_start__ = 0x90020000);
PROVIDE(__heap_end__ = 0xA0020000);

4
fusee/fusee-secondary/src/chainloader.h
View file

@ -13,14 +13,14 @@
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef FUSEE_CHAINLOADER_H
#define FUSEE_CHAINLOADER_H
#include <stddef.h>
#include <stdint.h>
#define CHAINLOADER_ARG_DATA_MAX_SIZE 0x6200
#define CHAINLOADER_ARG_DATA_MAX_SIZE 0x5400
#define CHAINLOADER_MAX_ENTRIES 128
typedef struct chainloader_entry_t {

1
sept/sept-secondary/key_derivation/src/start.s
View file

@ -96,4 +96,5 @@ _start:
ldr x0, =__start__
mov sp, x0
mov fp, #0x0
bl derive_keys

8
sept/sept-secondary/linker.ld
View file

@ -13,15 +13,15 @@ PHDRS
MEMORY
{
NULL : ORIGIN = 0x00000000, LENGTH = 0x1000
main : ORIGIN = 0x40010000, LENGTH = 0x28000
low_iram : ORIGIN = 0x40003000, LENGTH = 0x8000
main : ORIGIN = 0x40010000, LENGTH = 0x20000
low_iram : ORIGIN = 0x40002000, LENGTH = 0x6000
}
SECTIONS
{
PROVIDE(__start__ = 0x40010000);
PROVIDE(__stack_top__ = 0x4003C000);
PROVIDE(__stack_bottom__ = 0x40038000);
PROVIDE(__stack_top__ = 0x40010000);
PROVIDE(__stack_bottom__ = 0x40008000);
PROVIDE(__heap_start__ = 0);
PROVIDE(__heap_end__ = 0);

4
sept/sept-secondary/src/chainloader.h
View file

@ -13,14 +13,14 @@
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef FUSEE_CHAINLOADER_H
#define FUSEE_CHAINLOADER_H
#include <stddef.h>
#include <stdint.h>
#define CHAINLOADER_ARG_DATA_MAX_SIZE 0x6200
#define CHAINLOADER_ARG_DATA_MAX_SIZE 0x5400
#define CHAINLOADER_MAX_ENTRIES 128
typedef struct chainloader_entry_t {

162
sept/sept-secondary/src/cluster.c
View file

@ -22,114 +22,83 @@
#include "sysreg.h"
#include "i2c.h"
#include "car.h"
#include "fuse.h"
#include "mc.h"
#include "timers.h"
#include "pmc.h"
#include "max77620.h"
#include "max77812.h"
/* Determine the current SoC for Mariko specific code. */
static bool is_soc_mariko() {
return (fuse_get_soc_type() == 1);
void _cluster_enable_power()
{
/* Reboot I2C5. */
clkrst_reboot(CARDEVICE_I2C5);
i2c_init(I2C_5);
uint8_t val = 0;
i2c_query(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_AME_GPIO, &val, 1);
val &= 0xDF;
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_AME_GPIO, &val, 1);
val = 0x09;
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_GPIO5, &val, 1);
/* Enable power. */
val = 0x20;
i2c_send(I2C_5, MAX77621_CPU_I2C_ADDR, 0x02, &val, 1);
val = 0x8D;
i2c_send(I2C_5, MAX77621_CPU_I2C_ADDR, 0x03, &val, 1);
val = 0xB7;
i2c_send(I2C_5, MAX77621_CPU_I2C_ADDR, 0x00, &val, 1);
val = 0xB7;
i2c_send(I2C_5, MAX77621_CPU_I2C_ADDR, 0x01, &val, 1);
}
static void cluster_enable_power(uint32_t regulator) {
switch (regulator) {
case 0: /* Regulator_Max77621 */
{
uint8_t val = 0;
i2c_query(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_AME_GPIO, &val, 1);
val &= 0xDF;
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_AME_GPIO, &val, 1);
val = 0x09;
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_GPIO5, &val, 1);
val = 0x20;
i2c_send(I2C_5, MAX77621_CPU_I2C_ADDR, 0x02, &val, 1);
val = 0x8D;
i2c_send(I2C_5, MAX77621_CPU_I2C_ADDR, 0x03, &val, 1);
val = 0xB7;
i2c_send(I2C_5, MAX77621_CPU_I2C_ADDR, 0x00, &val, 1);
val = 0xB7;
i2c_send(I2C_5, MAX77621_CPU_I2C_ADDR, 0x01, &val, 1);
}
break;
case 1: /* Regulator_Max77812PhaseConfiguration31 */
{
uint8_t val = 0;
i2c_query(I2C_5, MAX77812_PHASE31_CPU_I2C_ADDR, MAX77812_REG_EN_CTRL, &val, 1);
if (val) {
val |= 0x40;
i2c_send(I2C_5, MAX77812_PHASE31_CPU_I2C_ADDR, MAX77812_REG_EN_CTRL, &val, 1);
}
val = 0x6E;
i2c_send(I2C_5, MAX77812_PHASE31_CPU_I2C_ADDR, MAX77812_REG_M4_VOUT, &val, 1);
}
break;
case 2: /* Regulator_Max77812PhaseConfiguration211 */
{
uint8_t val = 0;
i2c_query(I2C_5, MAX77812_PHASE211_CPU_I2C_ADDR, MAX77812_REG_EN_CTRL, &val, 1);
if (val) {
val |= 0x40;
i2c_send(I2C_5, MAX77812_PHASE211_CPU_I2C_ADDR, MAX77812_REG_EN_CTRL, &val, 1);
}
val = 0x6E;
i2c_send(I2C_5, MAX77812_PHASE211_CPU_I2C_ADDR, MAX77812_REG_M4_VOUT, &val, 1);
}
break;
default: return;
}
}
static void cluster_pmc_enable_partition(uint32_t part, uint32_t toggle) {
int _cluster_pmc_enable_partition(uint32_t part, uint32_t toggle)
{
volatile tegra_pmc_t *pmc = pmc_get_regs();
/* Check if the partition has already been turned on. */
if (pmc->pwrgate_status & part) {
return;
}
if (pmc->pwrgate_status & part)
return 1;
uint32_t i = 5001;
while (pmc->pwrgate_toggle & 0x100) {
while (pmc->pwrgate_toggle & 0x100)
{
udelay(1);
i--;
if (i < 1) {
return;
}
if (i < 1)
return 0;
}
/* Turn the partition on. */
pmc->pwrgate_toggle = (toggle | 0x100);
i = 5001;
while (i > 0) {
/* Check if the partition has already been turned on. */
if (pmc->pwrgate_status & part) {
while (i > 0)
{
if (pmc->pwrgate_status & part)
break;
}
udelay(1);
i--;
}
return 1;
}
void cluster_boot_cpu0(uint32_t entry) {
void cluster_boot_cpu0(uint32_t entry)
{
volatile tegra_car_t *car = car_get_regs();
bool is_mariko = is_soc_mariko();
/* Set ACTIVE_CLUSER to FAST. */
FLOW_CTLR_BPMP_CLUSTER_CONTROL_0 &= 0xFFFFFFFE;
/* Enable VddCpu. */
cluster_enable_power(is_mariko ? fuse_get_regulator() : 0);
_cluster_enable_power();
if (!(car->pllx_base & 0x40000000)) {
if (!(car->pllx_base & 0x40000000))
{
car->pllx_misc3 &= 0xFFFFFFF7;
udelay(2);
if (!is_mariko) {
car->pllx_base = 0x80404E02;
car->pllx_base = 0x404E02;
}
car->pllx_base = 0x80404E02;
car->pllx_base = 0x404E02;
car->pllx_misc = ((car->pllx_misc & 0xFFFBFFFF) | 0x40000);
car->pllx_base = 0x40404E02;
}
@ -138,28 +107,28 @@ void cluster_boot_cpu0(uint32_t entry) {
/* Wait. */
}
/* Set MSELECT clock. */
clk_enable(CARDEVICE_MSELECT);
/* Configure MSELECT source and enable clock. */
car->clk_source_mselect = ((car->clk_source_mselect & 0x1FFFFF00) | 6);
car->clk_out_enb_v = ((car->clk_out_enb_v & 0xFFFFFFF7) | 8);
/* Configure initial CPU clock frequency and enable clock. */
car->cclk_brst_pol = 0x20008888;
car->super_cclk_div = 0x80000000;
car->clk_enb_v_set = 1;
/* Reboot CORESIGHT. */
clkrst_reboot(CARDEVICE_CORESIGHT);
/* Set CAR2PMC_CPU_ACK_WIDTH to 0. */
/* CAR2PMC_CPU_ACK_WIDTH should be set to 0. */
car->cpu_softrst_ctrl2 &= 0xFFFFF000;
/* Enable CPU rail. */
cluster_pmc_enable_partition(1, 0);
_cluster_pmc_enable_partition(1, 0);
/* Enable cluster 0 non-CPU. */
cluster_pmc_enable_partition(0x8000, 15);
_cluster_pmc_enable_partition(0x8000, 15);
/* Enable CE0. */
cluster_pmc_enable_partition(0x4000, 14);
_cluster_pmc_enable_partition(0x4000, 14);
/* Request and wait for RAM repair. */
FLOW_CTLR_RAM_REPAIR_0 = 1;
@ -169,6 +138,11 @@ void cluster_boot_cpu0(uint32_t entry) {
MAKE_EXCP_VEC_REG(0x100) = 0;
/* Check for reset vector lock. */
if (SB_CSR_0 & 2) {
generic_panic();
}
/* Set reset vector. */
SB_AA64_RESET_LOW_0 = (entry | 1);
SB_AA64_RESET_HIGH_0 = 0;
@ -177,18 +151,28 @@ void cluster_boot_cpu0(uint32_t entry) {
SB_CSR_0 = 2;
(void)SB_CSR_0;
/* Validate reset vector lock + RESET_LOW/HIGH values. */
if (!(SB_CSR_0 & 2)) {
generic_panic();
}
/* TODO: Should we even bother taking as a parameter? */
if (SB_AA64_RESET_LOW_0 != (0x4003D000 | 1) || SB_AA64_RESET_HIGH_0 != 0) {
generic_panic();
}
/* Set CPU_STRICT_TZ_APERTURE_CHECK. */
/* NOTE: This breaks Exosphère. */
/* NOTE: [4.0.0+] This was added, but it breaks Exosphère. */
/* MAKE_MC_REG(MC_TZ_SECURITY_CTRL) = 1; */
/* Clear MSELECT reset. */
rst_disable(CARDEVICE_MSELECT);
car->rst_dev_v &= 0xFFFFFFF7;
if (!is_mariko) {
/* Clear NONCPU reset. */
car->rst_cpug_cmplx_clr = 0x20000000;
}
/* Clear NONCPU reset. */
car->rst_cpug_cmplx_clr = 0x20000000;
/* Clear CPU{0} POR and CORE, CX0, L2, and DBG reset.*/
/* Clear CPU{0,1,2,3} POR and CORE, CX0, L2, and DBG reset.*/
/* NOTE: [5.0.0+] This was changed so only CPU0 reset is cleared. */
/* car->rst_cpug_cmplx_clr = 0x411F000F; */
car->rst_cpug_cmplx_clr = 0x41010001;
}

76
sept/sept-secondary/src/hwinit.c
View file

@ -15,7 +15,7 @@
* 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"
@ -42,12 +42,12 @@ static bool is_soc_mariko() {
static void config_oscillators(void) {
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);
@ -64,10 +64,10 @@ static void config_oscillators(void) {
static void config_gpios(void) {
volatile tegra_pinmux_t *pinmux = pinmux_get_regs();
bool is_mariko = is_soc_mariko();
if (is_mariko) {
uint32_t hardware_type = fuse_get_hardware_type();
/* Only for HardwareType_Iowa and HardwareType_Five. */
if ((hardware_type == 3) || (hardware_type == 5)) {
pinmux->uart2_tx = 0;
@ -81,7 +81,7 @@ static void config_gpios(void) {
pinmux->uart2_tx = 0;
pinmux->uart3_tx = 0;
}
pinmux->pe6 = PINMUX_INPUT;
pinmux->ph6 = PINMUX_INPUT;
if (!is_mariko) {
@ -106,7 +106,7 @@ static void config_gpios(void) {
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);
if (is_mariko) {
/* Configure home button as input. */
gpio_configure_mode(TEGRA_GPIO(Y, 1), GPIO_MODE_GPIO);
@ -116,7 +116,7 @@ static void config_gpios(void) {
static void mbist_workaround(void) {
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;
@ -135,7 +135,7 @@ static void mbist_workaround(void) {
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);
@ -144,7 +144,7 @@ static void mbist_workaround(void) {
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;
@ -153,14 +153,14 @@ static void mbist_workaround(void) {
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;
@ -173,23 +173,23 @@ static void config_se_brom(void) {
volatile tegra_fuse_chip_common_t *fuse_chip = fuse_chip_common_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->rst_status = 0;
@ -199,18 +199,18 @@ void nx_hwinit(bool enable_log) {
volatile tegra_pmc_t *pmc = pmc_get_regs();
volatile tegra_car_t *car = car_get_regs();
bool is_mariko = is_soc_mariko();
if (!is_mariko) {
/* 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();
}
/* Enable SE clock. */
clkrst_reboot(CARDEVICE_SE);
if (is_mariko) {
@ -228,10 +228,10 @@ void nx_hwinit(bool enable_log) {
/* Configure oscillators. */
config_oscillators();
/* Disable pinmux tristate input clamping. */
APB_MISC_PP_PINMUX_GLOBAL_0 = 0;
/* Configure GPIOs. */
config_gpios();
@ -240,22 +240,22 @@ void nx_hwinit(bool enable_log) {
clkrst_reboot(CARDEVICE_UARTA);
uart_init(UART_A, 115200);
}
/* Enable CL-DVFS clock. */
clkrst_reboot(CARDEVICE_CL_DVFS);
/* Enable I2C1 clock. */
clkrst_reboot(CARDEVICE_I2C1);
/* Enable I2C5 clock. */
clkrst_reboot(CARDEVICE_I2C5);
/* Enable TZRAM clock. */
clkrst_reboot(CARDEVICE_TZRAM);
/* Initialize I2C5. */
i2c_init(I2C_5);
/* Configure the PMIC. */
if (is_mariko) {
uint8_t val = 0x40;
@ -283,11 +283,11 @@ void nx_hwinit(bool enable_log) {
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);
@ -299,29 +299,29 @@ void nx_hwinit(bool enable_log) {
/* Configure SD0 voltage. */
uint8_t val = 0x24;
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_SD0, &val, 1);
/* Enable LDO8 in HardwareType_Hoag only. */
if (is_mariko && (fuse_get_hardware_type() == 2)) {
val = 0xE8;
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_LDO8_CFG, &val, 1);
}
/* Initialize I2C1. */
i2c_init(I2C_1);
/* Set super clock burst policy. */
car->sclk_brst_pol = ((car->sclk_brst_pol & 0xFFFF8888) | 0x3333);
if (is_mariko) {
/* Mariko only PMC configuration for TZRAM. */
pmc->tzram_pwr_cntrl &= 0xFFFFFFFE;
pmc->tzram_non_sec_disable = 0x3;
pmc->tzram_sec_disable = 0x3;
}
/* Save SDRAM parameters to scratch. */
sdram_save_params(sdram_get_params(fuse_get_dram_id()));
/* Initialize SDRAM. */
sdram_init();
}
}

61
sept/sept-secondary/src/init.c
View file

@ -13,7 +13,7 @@
* 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 <stdint.h>
#include <stddef.h>
#include <string.h>
@ -81,66 +81,11 @@ void __program_exit(int rc) {
for (;;);
}
#ifdef SEPT_STAGE1_SRC
static void __program_parse_argc_argv(int argc, char *argdata) {
__program_argc = 0;
__program_argv = NULL;
}
#elif defined(SEPT_STAGE2_SRC)
#include "stage2.h"
static void __program_parse_argc_argv(int argc, char *argdata) {
size_t pos = 0, len;
__program_argc = argc;
__program_argv = malloc(argc * sizeof(void **));
if (__program_argv == NULL) {
generic_panic();
}
len = strlen(argdata);
__program_argv[0] = malloc(len + 1);
if (__program_argv[0] == NULL) {
generic_panic();
}
strcpy((char *)__program_argv[0], argdata);
pos += len + 1;
__program_argv[1] = malloc(sizeof(stage2_args_t));
if (__program_argv[1] == NULL) {
generic_panic();
}
memcpy(__program_argv[1], argdata + pos, sizeof(stage2_args_t));
}
#else
static void __program_parse_argc_argv(int argc, char *argdata) {
size_t pos = 0, len;
__program_argc = argc;
__program_argv = malloc(argc * sizeof(void **));
if (__program_argv == NULL) {
generic_panic();
}
for (int i = 0; i < argc; i++) {
len = strlen(argdata + pos);
__program_argv[i] = malloc(len + 1);
if (__program_argv[i] == NULL) {
generic_panic();
}
strcpy((char *)__program_argv[i], argdata + pos);
pos += len + 1;
}
}
#endif
static void __program_cleanup_argv(void) {
#ifndef SEPT_STAGE1_SRC
for (int i = 0; i < __program_argc; i++) {
free(__program_argv[i]);
__program_argv[i] = NULL;
}
free(__program_argv);
#endif
/* ... */
}

1
sept/sept-secondary/src/key_derivation.c
View file

@ -20,6 +20,7 @@
#include "cluster.h"
#include "timers.h"
#include "fuse.h"
#include "uart.h"
#include "utils.h"
#define u8 uint8_t

13
sept/sept-secondary/src/main.c
View file

@ -18,6 +18,7 @@
#include "exception_handlers.h"
#include "panic.h"
#include "hwinit.h"
#include "car.h"
#include "di.h"
#include "se.h"
#include "pmc.h"
@ -93,13 +94,13 @@ static void exfiltrate_keys_and_reboot_if_needed(uint32_t version) {
static void display_splash_screen(void) {
/* Draw splash. */
draw_splash((volatile uint32_t *)g_framebuffer);
/* Turn on the backlight. */
display_backlight(true);
/* Ensure the splash screen is displayed for at least one second. */
mdelay(1000);
/* Turn off the backlight. */
display_backlight(false);
}
@ -118,7 +119,7 @@ static void setup_env(void) {
/* Set the framebuffer. */
display_init_framebuffer(g_framebuffer);
/* Set up the exception handlers. */
setup_exception_handlers();
@ -129,7 +130,7 @@ static void setup_env(void) {
static void cleanup_env(void) {
/* Unmount the SD card. */
unmount_sd();
/* Terminate the display. */
display_end();
}
@ -164,7 +165,7 @@ int sept_main(uint32_t version) {
/* Load the loader payload into DRAM. */
load_stage2();
/* Display the splash screen. */
display_splash_screen();

1
sept/sept-secondary/src/panic.c
View file

@ -21,6 +21,7 @@
#include "se.h"
#include "fuse.h"
#include "utils.h"
#include "uart.h"
static uint32_t g_panic_code = 0;

2
sept/sept-secondary/src/start.s
View file

@ -32,6 +32,7 @@ _start:
.word 0x00000000 /* Reserved. */
begin_relocation_loop:
/* Relocate ourselves if necessary */
ldr r2, =__start__
adr r3, _start
@ -43,7 +44,6 @@ _start:
mov r1, #0x0
str r1, [r0]
ldr r4, =_relocation_loop_end
mov r4, #0x1000
mov r1, #0x0
_relocation_loop:

11
sept/sept-secondary/src/uart.h
View file

@ -14,7 +14,7 @@
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef FUSEE_UART_H
#define FUSEE_UART_H
@ -79,7 +79,7 @@ typedef enum {
0 = Transmit 1 stop bit
1 = Transmit 2 stop bits (receiver always checks for 1 stop bit)
*/
UART_LCR_STOP = 1 << 2,
UART_LCR_STOP = 1 << 2,
UART_LCR_PAR = 1 << 3, /* Parity enabled */
UART_LCR_EVEN = 1 << 4, /* Even parity format. There will always be an even number of 1s in the binary representation (PAR = 1) */
UART_LCR_SET_P = 1 << 5, /* Set (force) parity to value in LCR[4] */
@ -115,7 +115,7 @@ typedef enum {
0 = FIFO_COUNT_GREATER_1
1 = FIFO_COUNT_GREATER_4
2 = FIFO_COUNT_GREATER_8
3 = FIFO_COUNT_GREATER_16
3 = FIFO_COUNT_GREATER_16
*/
UART_FCR_RX_TRIG = 3 << 6,
UART_FCR_RX_TRIG_FIFO_COUNT_GREATER_1 = 0 << 6,
@ -163,6 +163,11 @@ void uart_wait_idle(UartDevice dev, UartVendorStatus status);
void uart_send(UartDevice dev, const void *buf, size_t len);
void uart_recv(UartDevice dev, void *buf, size_t len);
static inline void uart_send_text(UartDevice dev, const char *str) {
uart_send(dev, str, strlen(str));
uart_wait_idle(dev, UART_VENDOR_STATE_TX_IDLE);
}
static inline volatile tegra_uart_t *uart_get_regs(UartDevice dev) {
static const size_t offsets[] = {0, 0x40, 0x200, 0x300, 0x400};
return (volatile tegra_uart_t *)(UART_BASE + offsets[dev]);