void main(void)
{
extern struct mem_timings mem_timings;
void *entry;
int is_resume = (get_wakeup_state() != IS_NOT_WAKEUP);
/* Clock must be initialized before console_init, otherwise you may need
* to re-initialize serial console drivers again. */
system_clock_init();
console_init();
setup_power(is_resume);
setup_memory(&mem_timings, is_resume);
primitive_mem_test();
if (is_resume) {
wakeup();
}
setup_storage();
setup_gpio();
setup_ec();
simple_spi_test();
/* Set SPI (primary CBFS media) clock to 50MHz. */
/* if this is uncommented SPI will not work correctly. */
clock_set_rate(PERIPH_ID_SPI1, 50000000);
simple_spi_test();
entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA, "fallback/coreboot_ram");
simple_spi_test();
stage_exit(entry);
}
void main(void)
{
extern struct mem_timings mem_timings;
int is_resume = (get_wakeup_state() != IS_NOT_WAKEUP);
int power_init_failed;
exynos5420_config_smp();
power_init_failed = setup_power(is_resume);
timestamp_init(timestamp_get());
timestamp_add_now(TS_START_ROMSTAGE);
/* Clock must be initialized before console_init, otherwise you may need
* to re-initialize serial console drivers again. */
system_clock_init();
exynos_pinmux_uart3();
console_init();
exception_init();
if (power_init_failed)
die("Failed to intialize power.\n");
/* re-initialize PMIC I2C channel after (re-)setting system clocks */
i2c_init(PMIC_I2C_BUS, 1000000, 0x00); /* 1MHz */
timestamp_add_now(TS_BEFORE_INITRAM);
setup_memory(&mem_timings, is_resume);
timestamp_add_now(TS_AFTER_INITRAM);
primitive_mem_test();
trustzone_init();
if (is_resume) {
wakeup();
}
setup_gpio();
setup_ec();
simple_spi_test();
/* Set SPI (primary CBFS media) clock to 50MHz. */
/* if this is uncommented SPI will not work correctly. */
clock_set_rate(PERIPH_ID_SPI1, 50000000);
exynos_pinmux_spi1();
simple_spi_test();
cbmem_initialize_empty();
simple_spi_test();
timestamp_add_now(TS_END_ROMSTAGE);
run_ramstage();
}
/**
* \brief Initialize system
*
* This function will call the various initialization functions within the
* system namespace. If a given optional system module is not available, the
* associated call will effectively be a NOP (No Operation).
*
* Currently the following initialization functions are supported:
* - System clock initialization (via the SYSTEM CLOCK sub-module)
* - Board hardware initialization (via the Board module)
*/
void system_init(void)
{
/* Configure GCLK and clock sources according to conf_clocks.h */
system_clock_init();
/* Initialize board hardware */
system_board_init();
}
int lowlevel_init_subsystems(void)
{
// uint32_t reset_status;
int actions = 0;
// do_barriers();
/* Setup cpu info which is needed to select correct register offsets */
cpu_info_init();
#if 0
reset_status = power_read_reset_status();
switch (reset_status) {
case S5P_CHECK_SLEEP:
actions = DO_CLOCKS | DO_WAKEUP;
break;
case S5P_CHECK_DIDLE:
case S5P_CHECK_LPA:
actions = DO_WAKEUP;
default:
/* This is a normal boot (not a wake from sleep) */
actions = DO_UART | DO_CLOCKS | DO_POWER;
}
#endif
actions = DO_UART | DO_CLOCKS | DO_POWER;
if (actions & DO_POWER)
power_init();
if (actions & DO_CLOCKS)
system_clock_init();
if (actions & DO_UART) {
/* Set up serial UART so we can printf() */
/* FIXME(dhendrix): add a function for mapping
CONFIG_CONSOLE_SERIAL_UART_ADDRESS to PERIPH_ID_UARTn */
// exynos_pinmux_config(EXYNOS_UART, PINMUX_FLAG_NONE);
exynos_pinmux_config(PERIPH_ID_UART3, PINMUX_FLAG_NONE);
console_init();
while (1) {
console_tx_byte('C');
}
}
init_timer(); /* FIXME(dhendrix): was timer_init() */
#if 0
if (actions & DO_CLOCKS) {
mem_ctrl_init();
tzpc_init();
}
#endif
// return actions & DO_WAKEUP;
return 0;
}
static struct mem_timings *setup_clock(void)
{
struct mem_timings *mem = get_mem_timings();
struct arm_clk_ratios *arm_ratios = get_arm_clk_ratios();
if (!mem) {
die("Unable to auto-detect memory timings\n");
}
system_clock_init(mem, arm_ratios);
return mem;
}
void main(void)
{
struct mem_timings *mem;
struct arm_clk_ratios *arm_ratios;
int ret;
void *entry;
clock_set_rate(PERIPH_ID_SPI1, 50000000); /* set spi clock to 50Mhz */
/* Clock must be initialized before console_init, otherwise you may need
* to re-initialize serial console drivers again. */
mem = get_mem_timings();
arm_ratios = get_arm_clk_ratios();
system_clock_init(mem, arm_ratios);
console_init();
/*
* FIXME: Do necessary I2C init so low-level PMIC code doesn't need to.
* Also, we should only call power_init() on cold boot.
*/
power_init();
if (!mem) {
printk(BIOS_CRIT, "Unable to auto-detect memory timings\n");
while(1);
}
printk(BIOS_SPEW, "man: 0x%x type: 0x%x, div: 0x%x, mhz: 0x%x\n",
mem->mem_manuf,
mem->mem_type,
mem->mpll_mdiv,
mem->frequency_mhz);
ret = ddr3_mem_ctrl_init(mem, DMC_INTERLEAVE_SIZE);
if (ret) {
printk(BIOS_ERR, "Memory controller init failed, err: %x\n",
ret);
while(1);
}
/* Set up MMU and caches */
mmu_setup_by_mva(CONFIG_SYS_SDRAM_BASE, CONFIG_DRAM_SIZE_MB);
initialize_s5p_mshc();
graphics();
entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA, "fallback/coreboot_ram");
printk(BIOS_INFO, "entry is 0x%p, leaving romstage.\n", entry);
stage_exit(entry);
}
/**
* \brief Initialize system
*
* This function will call the various initialization functions within the
* system namespace. If a given optional system module is not available, the
* associated call will effectively be a NOP (No Operation).
*
* Currently the following initialization functions are supported:
* - System clock initialization (via the SYSTEM CLOCK sub-module)
* - Board hardware initialization (via the Board module)
* - Event system driver initialization (via the EVSYS module)
* - External Interrupt driver initialization (via the EXTINT module)
*/
void system_init(void)
{
/* Configure GCLK and clock sources according to conf_clocks.h */
system_clock_init();
/* Initialize board hardware */
system_board_init();
/* Initialize EVSYS hardware */
_system_events_init();
/* Initialize External hardware */
_system_extint_init();
}
/*********************************************************************************************************************
** Function name: cpu_init
** Descriptions: 初始化处理器
** Input parameters:
** Output parameters:
** Returned value:
**--------------------------------------------------------------------------------------------------------------------
** Created by: Fengliang
** Created Date: 2010-9-20 16:11:46
** Test recorde:
**--------------------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
** Test recorde:
*********************************************************************************************************************/
void cpu_init(void)
{
/*
* 1) 配置系统时钟
*/
system_clock_init();
/*
* 2) 重定向中断向量表
*/
/*
* 3) 初始化中断控制器
*/
vic_setup();
}
void main(void)
//-----------------------------------------------------------------------------------------------------
// Purpose: The MCU will come here after reset.
//
//
// Rev: 1.5a TEMPLATE RELEASE
//
// Notes: None
//-----------------------------------------------------------------------------------------------------
{
//Initialization function calls
init_ports();
motors_init();
system_clock_init();
InitDisplay("FHBTEST "); //Start-up splash changed to unity ID
InitUART();
ADInit();
ENABLE_SWITCHES;
/* LED initialization - macro defined in qsk_bsp.h */
ENABLE_LEDS
//Polling for switch presses
while(TRUE)
{
if(S1 == PRESSED)
{
BNSPrintf(LCD,"\tTEST \n ");
project2ADemo();
}
else if (S2 == PRESSED)
{
BNSPrintf(LCD,"\tOff \n ");
}
else if (S3 == PRESSED)
{
BNSPrintf(LCD,"\tFigure 8 \n ");
DoFigureEight();
}
else
{
BNSPrintf(LCD,"\tTeam 2 \n ");
}
}
}
int lowlevel_init_subsystems(void)
{
uint32_t reset_status;
int actions = 0;
do_barriers();
/* Setup cpu info which is needed to select correct register offsets */
cpu_info_init();
reset_status = power_read_reset_status();
switch (reset_status) {
case S5P_CHECK_SLEEP:
actions = DO_CLOCKS | DO_WAKEUP;
break;
case S5P_CHECK_DIDLE:
case S5P_CHECK_LPA:
actions = DO_WAKEUP;
break;
default:
/* This is a normal boot (not a wake from sleep) */
actions = DO_UART | DO_CLOCKS | DO_POWER | DO_MEM_RESET;
}
if (actions & DO_POWER)
power_init();
if (actions & DO_CLOCKS)
system_clock_init();
if (actions & DO_UART) {
/* Set up serial UART so we can printf() */
exynos_pinmux_config(EXYNOS_UART, PINMUX_FLAG_NONE);
serial_init();
timer_init();
}
if (actions & DO_CLOCKS) {
mem_ctrl_init(actions & DO_MEM_RESET);
tzpc_init();
}
return actions & DO_WAKEUP;
}
/** Initialise clock and disable watchdog timer. */
void system_init (void)
{
system_clock_init ();
system_watchdog_timer_init ();
}