static void initialize_dbgu(void)
{
unsigned int baudrate = 115200;
at91_dbgu_hw_init();
if (pmc_check_mck_h32mxdiv())
usart_init(BAUDRATE(MASTER_CLOCK / 2, baudrate));
else
usart_init(BAUDRATE(MASTER_CLOCK, baudrate));
}
static void initialize_dbgu(void)
{
unsigned int baudrate = 115200;
at91_dbgu_hw_init();
usart_init(BAUDRATE(MASTER_CLOCK / 2, baudrate));
}
/*-----------------------------------------------------------------------------*/
void PopulateCOMSettings(HWND hDlg) {
char szBuffer[MAXLEN_TEMPSTR];
WORD wCount, wPosition;
// Fill baud combo box and make initial selection
FillComboBox(GetDlgItem(hDlg, IDC_BPS_COMBO),
szBaud, BaudTable,
sizeof(BaudTable) / sizeof(BaudTable[0]),
BAUDRATE(TTYInfo));
// Fill data bits combo box and make initial selection
for (wCount = 5; wCount < 9; wCount++) {
wsprintf(szBuffer, "%d", wCount);
wPosition = LOWORD(SendDlgItemMessage(hDlg,
IDC_DATABITS_COMBO, CB_ADDSTRING, 0, (LPARAM)(LPSTR)szBuffer));
if (wCount == BYTESIZE(TTYInfo)) {
SendDlgItemMessage(hDlg,
IDC_DATABITS_COMBO, CB_SETCURSEL, (WPARAM)wPosition, 0L);
}
}
// Fill parity combo box and make initial selection
FillComboBox(GetDlgItem(hDlg, IDC_PARITY_COMBO),
szParity, ParityTable,
sizeof(ParityTable) / sizeof(ParityTable[0]),
PARITY(TTYInfo));
// Fill stop bits combo box and make initial selection
FillComboBox(GetDlgItem(hDlg, IDC_STOPBITS_COMBO),
szStopBits, StopBitsTable,
sizeof(StopBitsTable) / sizeof(StopBitsTable[0]),
STOPBITS(TTYInfo));
}
static void initialize_dbgu(void)
{
/* Configure DBGU pin */
/* {"RXD", AT91C_PIN_PB(14), 0, PIO_DEFAULT, PIO_PERIPH_A}, */
/* {"TXD", AT91C_PIN_PB(15), 0, PIO_DEFAULT, PIO_PERIPH_A}, */
writel(((0x01 << 14) | (0x01 << 15)), AT91C_BASE_PIOB + PIO_ASR(0));
writel(((0x01 << 14) | (0x01 << 15)), AT91C_BASE_PIOB + PIO_PDR(0));
writel((1 << AT91C_ID_PIOB), (PMC_PCER + AT91C_BASE_PMC));
dbgu_init(BAUDRATE(MASTER_CLOCK, 115200));
}
/*-----------------------------------------------------------------------------*/
void UpdateTTYInfo(HWND hDlg) {
GetDlgItemText(hDlg, IDC_COMPORT_COMBO, gszPort, sizeof(gszPort));
BAUDRATE(TTYInfo) = GetdwTTYITem(hDlg, IDC_BPS_COMBO,
szBaud, BaudTable, sizeof(BaudTable) / sizeof(BaudTable[0]));
PARITY(TTYInfo) = GetbTTYITem(hDlg, IDC_PARITY_COMBO,
szParity, ParityTable, sizeof(ParityTable) / sizeof(ParityTable[0]));
STOPBITS(TTYInfo) = GetbTTYITem(hDlg, IDC_STOPBITS_COMBO,
szStopBits, StopBitsTable, sizeof(StopBitsTable) / sizeof(StopBitsTable[0]));
BYTESIZE(TTYInfo) = GetDlgItemInt(hDlg, IDC_DATABITS_COMBO, NULL, FALSE);
}
/*-----------------------------------------------------------------------------*/
void InitTTYInfo() {
// Initialize general TTY info
COMDEV(TTYInfo) = NULL;
CONNECTED(TTYInfo) = FALSE;
PORT(TTYInfo) = '0'; // setting to 0 since we know nothing about
// the current COM port configuration
BAUDRATE(TTYInfo) = CBR_9600;
BYTESIZE(TTYInfo) = 8;
PARITY(TTYInfo) = NOPARITY;
STOPBITS(TTYInfo) = ONESTOPBIT;
InitFont();
ClearTTYContents();
}
static void initialize_dbgu(void)
{
/* const struct pio_desc dbgu_pins[] = {
{"RXD", AT91C_PIN_PA(9), 0, PIO_DEFAULT, PIO_PERIPH_A},
{"TXD", AT91C_PIN_PA(10), 0, PIO_DEFAULT, PIO_PERIPH_A},
{(char *)0, 0, 0, PIO_DEFAULT, PIO_PERIPH_A},
}; */
/* Configure the dbgu pins */
writel(((0x01 << 9) | (0x01 << 10)), AT91C_BASE_PIOA + PIO_ASR(0));
writel(((0x01 << 9) | (0x01 << 10)), AT91C_BASE_PIOA + PIO_PDR(0));
writel((1 << AT91C_ID_PIOA), (PMC_PCER + AT91C_BASE_PMC));
dbgu_init(BAUDRATE(MASTER_CLOCK, 115200));
}
static void initialize_dbgu(void)
{
/* const struct pio_desc dbgu_pins[] = {
{"RXD", AT91C_PIN_PA(9), 0, PIO_DEFAULT, PIO_PERIPH_A},
{"TXD", AT91C_PIN_PA(10), 0, PIO_DEFAULT, PIO_PERIPH_A},
{(char *)0, 0, 0, PIO_DEFAULT, PIO_PERIPH_A},
}; */
/* Configure the dbgu pins */
writel(((0x01 << 9) | (0x01 << 10)), AT91C_BASE_PIOA + PIO_ASR);
writel(((0x01 << 9) | (0x01 << 10)), AT91C_BASE_PIOA + PIO_PDR);
pmc_enable_periph_clock(AT91C_ID_PIOA);
usart_init(BAUDRATE(MASTER_CLOCK, 115200));
}
static int SetPortAttr (int baudrate,int databit, const char *stopbit, char parity)
{
bzero (&termios_new, sizeof (termios_new));
cfmakeraw (&termios_new);
termios_new.c_cflag = BAUDRATE (baudrate); /* set baudrate */
termios_new.c_cflag |= CLOCAL | CREAD; /* | CRTSCTS */
SetDataBit (databit);
SetParityCheck (parity);
SetStopBit (stopbit);
termios_new.c_oflag = 0;
termios_new.c_lflag |= 0;
termios_new.c_oflag &= ~OPOST;
termios_new.c_cc[VTIME] = 1; /* unit: 1/10 second. */
termios_new.c_cc[VMIN] = 1; /* minimal characters for reading */
tcflush (fd, TCIFLUSH);
return (tcsetattr (fd, TCSANOW, &termios_new));
}
// Connects to, sets up and configures (if virgin) port.
void commConnect() {
DCB dcb;
HMENU hMenu;
// Make sure we're not connected
if (!CONNECTED(TTYInfo)) {
// Menu
hMenu = GetMenu(ghWndMain); // get the menu handle
EnableMenuItem(hMenu, ID_FILE_CONNECT, MF_GRAYED | MF_DISABLED); // disable the connect menu
EnableMenuItem(hMenu, ID_FILE_DISCONNECT, MF_ENABLED); // enable the disconnect menu
EnableMenuItem(hMenu, ID_EDIT_SETTINGS, MF_GRAYED | MF_DISABLED); // disable the TTY menu
COMDEV(TTYInfo) = CreateFile(gszPort, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL);
FillMemory(&dcb, sizeof(dcb), 0);
dcb.BaudRate = BAUDRATE(TTYInfo); // set the baud rate
dcb.ByteSize = BYTESIZE(TTYInfo); // set the data bits
dcb.fParity = PARITY(TTYInfo); // set the parity
dcb.StopBits = STOPBITS(TTYInfo); // set the stop bits
SetCommState(COMDEV(TTYInfo), &dcb); // update the COM port configuration
CONNECTED(TTYInfo) = TRUE; // we are now connected (hopefully)
}
// Start reading thread
TTYInfo.hThread = CreateThread(
NULL, // security attributes
0, // inital thread stack size, in bytes
commReadThread, // address of thread function
ghWndTerm, // argument for new thread
0, // creation flags
&TTYInfo.hThread
); // address of returned thread ID
TTYInfo.fConnected = TRUE;
}
static void initialize_dbgu(void)
{
at91_dbgu_hw_init();
dbgu_init(BAUDRATE(MASTER_CLOCK, 115200));
}
static void initialize_dbgu(void)
{
at91_dbgu_hw_init();
usart_init(BAUDRATE(MASTER_CLOCK, BAUD_RATE));
}
/*------------------------------------------------------------------------------*/
void hw_init(void)
{
unsigned int cp15;
/*
* Configure PIOs
*/
const struct pio_desc hw_pio[] = {
#ifdef CONFIG_DEBUG
{"RXD", AT91C_PIN_PA(21), 0, PIO_DEFAULT, PIO_PERIPH_A},
{"TXD", AT91C_PIN_PA(22), 0, PIO_DEFAULT, PIO_PERIPH_A},
#endif
{(char *)0, 0, 0, PIO_DEFAULT, PIO_PERIPH_A},
};
/*
* Disable watchdog
*/
writel(AT91C_WDTC_WDDIS, AT91C_BASE_WDTC + WDTC_WDMR);
/*
* At this stage the main oscillator is supposed to be enabled
* * PCK = MCK = MOSC
*/
/*
* Configure PLLA = MOSC * (PLL_MULA + 1) / PLL_DIVA
*/
pmc_cfg_plla(PLL_SETTINGS, PLL_LOCK_TIMEOUT);
/*
* PCK = PLL = 2 * MCK
*/
pmc_cfg_mck(MCKR_SETTINGS, PLL_LOCK_TIMEOUT);
/*
* Switch MCK on PLLA output
*/
pmc_cfg_mck(MCKR_CSS_SETTINGS, PLL_LOCK_TIMEOUT);
/*
* Enable External Reset
*/
writel(AT91C_RSTC_KEY_UNLOCK
|| AT91C_RSTC_URSTEN, AT91C_BASE_RSTC + RSTC_RMR);
/*
* Configure CP15
*/
cp15 = get_cp15();
//cp15 |= I_CACHE;
set_cp15(cp15);
#ifdef CONFIG_SCLK
sclk_enable();
#endif
/*
* Configure the PIO controller to output PCK0
*/
pio_setup(hw_pio);
#ifdef CONFIG_DEBUG
/*
* Enable Debug messages on the DBGU
*/
dbgu_init(BAUDRATE(MASTER_CLOCK, 115200));
dbgu_print("Start AT91Bootstrap...\n\r");
#endif /* CONFIG_VERBOSE */
/*
* Configure the EBI Slave Slot Cycle to 64
*/
writel((readl((AT91C_MATRIX_SCFG4)) & ~0xFF) | 0x40, AT91C_MATRIX_SCFG4);
/*
* Initialize the matrix Slave 0 & Slave 4 (SRAM & EBI)
*/
writel(readl(AT91C_MATRIX_SCFG0) | AT91C_MATRIX_DEFMSTR_TYPE_FIXED_DEFMSTR |
AT91C_MATRIX_FIXED_DEFMSTR0_ARM926D, AT91C_MATRIX_SCFG0);
writel(readl(AT91C_MATRIX_SCFG4) | AT91C_MATRIX_DEFMSTR_TYPE_FIXED_DEFMSTR |
AT91C_MATRIX_FIXED_DEFMSTR0_ARM926D, AT91C_MATRIX_SCFG4);
#ifdef CONFIG_SDRAM
/*
* Initialize the matrix
*/
writel(readl(AT91C_CCFG_EBICSA) | AT91C_EBI_CS1A_SDRAMC, AT91C_CCFG_EBICSA);
#ifdef MCK_100
/*
* Configure SDRAM Controller
*/
sdram_init(AT91C_SDRAMC_NC_9 | AT91C_SDRAMC_NR_13 | AT91C_SDRAMC_CAS_2 | AT91C_SDRAMC_NB_4_BANKS | AT91C_SDRAMC_DBW_32_BITS | AT91C_SDRAMC_TWR_2 | AT91C_SDRAMC_TRC_7 | AT91C_SDRAMC_TRP_2 | AT91C_SDRAMC_TRCD_2 | AT91C_SDRAMC_TRAS_5 | AT91C_SDRAMC_TXSR_8, /* Control Register */
(MASTER_CLOCK * 7) / 1000000, /* Refresh Timer Register */
AT91C_SDRAMC_MD_SDRAM); /* SDRAM (no low power) */
#else /* 133 MHz */
/*
* Configure SDRAM Controller
*/
sdram_init(AT91C_SDRAMC_NC_9 | AT91C_SDRAMC_NR_13 | AT91C_SDRAMC_CAS_3 | AT91C_SDRAMC_NB_4_BANKS | AT91C_SDRAMC_DBW_32_BITS | AT91C_SDRAMC_TWR_2 | AT91C_SDRAMC_TRC_9 | AT91C_SDRAMC_TRP_3 | AT91C_SDRAMC_TRCD_3 | AT91C_SDRAMC_TRAS_6 | AT91C_SDRAMC_TXSR_10, /* Control Register */
(MASTER_CLOCK * 7) / 1000000, /* Refresh Timer Register */
AT91C_SDRAMC_MD_SDRAM); /* SDRAM (no low power) */
#endif
#endif
}
/*----------------------------------------------------------------------------*/
void hw_init(void)
{
unsigned int cp15;
/*
* Configure PIOs
*/
const struct pio_desc hw_pio[] = {
#ifdef CONFIG_DEBUG
{"RXD", AT91C_PIN_PA(9), 0, PIO_DEFAULT, PIO_PERIPH_A},
{"TXD", AT91C_PIN_PA(10), 0, PIO_DEFAULT, PIO_PERIPH_A},
#endif
{(char *)0, 0, 0, PIO_DEFAULT, PIO_PERIPH_A},
};
/*
* Disable watchdog
*/
writel(AT91C_WDTC_WDDIS, AT91C_BASE_WDTC + WDTC_WDMR);
/*
* At this stage the main oscillator is supposed to be enabled
* * PCK = MCK = MOSC
*/
writel(0x00, AT91C_BASE_PMC + PMC_PLLICPR);
/*
* Configure PLLA = MOSC * (PLL_MULA + 1) / PLL_DIVA
*/
pmc_cfg_plla(PLLA_SETTINGS, PLL_LOCK_TIMEOUT);
/*
* PCK = PLLA/2 = 3 * MCK
*/
pmc_cfg_mck(BOARD_PRESCALER_MAIN_CLOCK, PLL_LOCK_TIMEOUT);
/*
* Switch MCK on PLLA output
*/
pmc_cfg_mck(BOARD_PRESCALER_PLLA, PLL_LOCK_TIMEOUT);
/*
* Enable External Reset
*/
writel(AT91C_RSTC_KEY_UNLOCK
|| AT91C_RSTC_URSTEN, AT91C_BASE_RSTC + RSTC_RMR);
/*
* Configure CP15
*/
cp15 = get_cp15();
cp15 |= I_CACHE;
set_cp15(cp15);
#ifdef CONFIG_SCLK
sclk_enable();
#endif
/*
* Configure the PIO controller
*/
writel((1 << AT91C_ID_PIOA_B), (PMC_PCER + AT91C_BASE_PMC));
pio_setup(hw_pio);
/*
* Enable Debug messages on the DBGU
*/
#ifdef CONFIG_DEBUG
dbgu_init(BAUDRATE(MASTER_CLOCK, 115200));
dbgu_print("Start AT91Bootstrap...\n\r");
#endif
#ifdef CONFIG_DDR2
/*
* Configure DDRAM Controller
*/
dbg_log(1, "Init DDR... ");
ddramc_hw_init();
dbg_log(1, "Done!\n\r");
#endif /* CONFIG_DDR2 */
}
/*----------------------------------------------------------------------------*/
void hw_init(void)
{
unsigned int cp15;
/*
* Configure PIOs
*/
const struct pio_desc hw_pio[] = {
#ifdef CONFIG_DEBUG
{"RXD", AT91C_PIN_PB(14), 0, PIO_DEFAULT, PIO_PERIPH_A},
{"TXD", AT91C_PIN_PB(15), 0, PIO_DEFAULT, PIO_PERIPH_A},
#endif
{(char *)0, 0, 0, PIO_DEFAULT, PIO_PERIPH_A},
};
/*
* Disable watchdog
*/
writel(AT91C_WDTC_WDDIS, AT91C_BASE_WDTC + WDTC_WDMR);
/*
* At this stage the main oscillator is supposed to be enabled
* * PCK = MCK = MOSC
*/
writel(0x00, AT91C_BASE_PMC + PMC_PLLICPR);
/*
* Configure PLLA = MOSC * (PLL_MULA + 1) / PLL_DIVA
*/
pmc_cfg_plla(PLLA_SETTINGS, PLL_LOCK_TIMEOUT);
/*
* PCK = PLLA/2 = 3 * MCK
*/
pmc_cfg_mck(MCKR_SETTINGS, PLL_LOCK_TIMEOUT);
/*
* Switch MCK on PLLA output
*/
pmc_cfg_mck(MCKR_CSS_SETTINGS, PLL_LOCK_TIMEOUT);
/*
* Configure PLLB
*/
pmc_cfg_pllb(PLLB_SETTINGS, PLL_LOCK_TIMEOUT);
/*
* Enable External Reset
*/
writel(AT91C_RSTC_KEY_UNLOCK
|| AT91C_RSTC_URSTEN, AT91C_BASE_RSTC + RSTC_RMR);
/*
* Configure CP15
*/
cp15 = get_cp15();
//cp15 |= I_CACHE;
set_cp15(cp15);
/*
* Enable External Reset
*/
writel(AT91C_RSTC_KEY_UNLOCK
|| AT91C_RSTC_URSTEN, AT91C_BASE_RSTC + RSTC_RMR);
/*
* Configure the PIO controller
*/
pio_setup(hw_pio);
/*
* Configure the EBI Slave Slot Cycle to 64
*/
writel((readl((AT91C_BASE_MATRIX + MATRIX_SCFG3)) & ~0xFF) | 0x40,
(AT91C_BASE_MATRIX + MATRIX_SCFG3));
#ifdef CONFIG_DEBUG
/*
* Enable Debug messages on the DBGU
*/
dbgu_init(BAUDRATE(MASTER_CLOCK, 115200));
dbgu_print("Start AT91Bootstrap...\n\r");
#endif /* CONFIG_DEBUG */
#ifdef CONFIG_SDRAM
/*
* Initialize the matrix (memory voltage = 3.3)
*/
writel((readl(AT91C_BASE_CCFG + CCFG_EBICSA)) | AT91C_EBI_CS1A_SDRAMC |
(1 << 16), AT91C_BASE_CCFG + CCFG_EBICSA);
/*
* Configure SDRAM Controller
*/
sdram_init(AT91C_SDRAMC_NC_9 | AT91C_SDRAMC_NR_13 | AT91C_SDRAMC_CAS_3 | AT91C_SDRAMC_NB_4_BANKS | AT91C_SDRAMC_DBW_32_BITS | AT91C_SDRAMC_TWR_3 | AT91C_SDRAMC_TRC_9 | AT91C_SDRAMC_TRP_3 | AT91C_SDRAMC_TRCD_3 | AT91C_SDRAMC_TRAS_6 | AT91C_SDRAMC_TXSR_10, /* Control Register */
(MASTER_CLOCK * 7) / 1000000, /* Refresh Timer Register */
AT91C_SDRAMC_MD_SDRAM); /* SDRAM (no low power) */
#endif /* CONFIG_SDRAM */
}
/* set serial port baudrate by use of file descriptor fd */
void SetBaudrate (int baudrate)
{
termios_new.c_cflag = BAUDRATE (baudrate); /* set baudrate */
}