void flashc_set_flash_waitstate_and_readmode(unsigned long cpu_f_hz)
{
//! Device-specific data
#undef AVR32_FLASHC_FWS_0_MAX_FREQ
#undef AVR32_FLASHC_FWS_1_MAX_FREQ
#undef AVR32_FLASHC_HSEN_FWS_0_MAX_FREQ
#undef AVR32_FLASHC_HSEN_FWS_1_MAX_FREQ
#define AVR32_FLASHC_FWS_0_MAX_FREQ 33000000
#define AVR32_FLASHC_FWS_1_MAX_FREQ 66000000
#define AVR32_FLASHC_HSEN_FWS_0_MAX_FREQ 33000000
#define AVR32_FLASHC_HSEN_FWS_1_MAX_FREQ 72000000
// These defines are missing from or wrong in the toolchain header files uc3cxxx.h
// Put a Bugzilla
if (cpu_f_hz > AVR32_FLASHC_HSEN_FWS_0_MAX_FREQ) { // > 33MHz
// Set a wait-state
flashc_set_wait_state(1);
if (cpu_f_hz <= AVR32_FLASHC_FWS_1_MAX_FREQ) { // <= 66MHz and >33Mhz
// Disable the high-speed read mode.
flashc_issue_command(AVR32_FLASHC_FCMD_CMD_HSDIS, -1);
} else { // > 66Mhz
// Enable the high-speed read mode.
flashc_issue_command(AVR32_FLASHC_FCMD_CMD_HSEN, -1);
}
} else { // <= 33 MHz
// Disable wait-state
flashc_set_wait_state(0);
// Disable the high-speed read mode.
flashc_issue_command(AVR32_FLASHC_FCMD_CMD_HSDIS, -1);
}
}
Bool flashc_erase_page (int page_number, Bool check)
{
Bool page_erased = TRUE;
#ifdef DEBUG_FLASHC
{
unsigned char text[20];
CI_LocalPrintf ("Erase page :");
itoa ((unsigned int) page_number, text);
CI_LocalPrintf (text);
CI_LocalPrintf (" - Pagebuffer = ");
itoa ((unsigned int) flashc_get_page_number (), text);
CI_LocalPrintf (text);
CI_LocalPrintf ("\n\r");
}
#endif
flashc_issue_command (AVR32_FLASHC_FCMD_CMD_EP, page_number);
if (check)
{
unsigned int error_status = flashc_error_status;
page_erased = flashc_quick_page_read (-1);
flashc_error_status |= error_status;
}
return page_erased;
}
bool flashc_erase_page(int page_number, bool check)
{
bool page_erased = true;
flashc_issue_command(AVR32_FLASHC_FCMD_CMD_EP, page_number);
if (check) {
unsigned int error_status = flashc_error_status;
page_erased = flashc_quick_page_read(-1);
flashc_error_status |= error_status;
}
return page_erased;
}
bool flashc_erase_user_page(bool check)
{
flashc_issue_command(AVR32_FLASHC_FCMD_CMD_EUP, -1);
return (check) ? flashc_quick_user_page_read() : true;
}
bool flashc_quick_user_page_read(void)
{
flashc_issue_command(AVR32_FLASHC_FCMD_CMD_QPRUP, -1);
return flashc_is_page_erased();
}
void flashc_write_page(int page_number)
{
flashc_issue_command(AVR32_FLASHC_FCMD_CMD_WP, page_number);
}
bool flashc_quick_page_read(int page_number)
{
flashc_issue_command(AVR32_FLASHC_FCMD_CMD_QPR, page_number);
return flashc_is_page_erased();
}
void flashc_clear_page_buffer(void)
{
flashc_issue_command(AVR32_FLASHC_FCMD_CMD_CPB, -1);
}
void flashc_write_gp_fuse_bit(unsigned int gp_fuse_bit, bool value)
{
if (!value) {
flashc_issue_command(AVR32_FLASHC_FCMD_CMD_WGPB, gp_fuse_bit & 0x3F);
}
}
bool flashc_erase_all_gp_fuses(bool check)
{
flashc_issue_command(AVR32_FLASHC_FCMD_CMD_EAGPF, -1);
return (check) ? (flashc_read_all_gp_fuses() == 0xFFFFFFFFFFFFFFFFULL) : true;
}
bool flashc_erase_gp_fuse_bit(unsigned int gp_fuse_bit, bool check)
{
flashc_issue_command(AVR32_FLASHC_FCMD_CMD_EGPB, gp_fuse_bit & 0x3F);
return (check) ? flashc_read_gp_fuse_bit(gp_fuse_bit) : true;
}
void flashc_lock_page_region(int page_number, bool lock)
{
flashc_issue_command((lock) ? AVR32_FLASHC_FCMD_CMD_LP : AVR32_FLASHC_FCMD_CMD_UP, page_number);
}
void flashc_activate_security_bit(void)
{
flashc_issue_command(AVR32_FLASHC_FCMD_CMD_SSB, -1);
}
void flashc_erase_all(void)
{
flashc_issue_command(AVR32_FLASHC_FCMD_CMD_EA, -1);
}
void flashc_no_operation(void)
{
flashc_issue_command(AVR32_FLASHC_FCMD_CMD_NOP, -1);
}
void flashc_write_user_page(void)
{
flashc_issue_command(AVR32_FLASHC_FCMD_CMD_WUP, -1);
}
void flashc_write_gp_fuse_byte(unsigned int gp_fuse_byte, uint8_t value)
{
flashc_issue_command(AVR32_FLASHC_FCMD_CMD_PGPFB, (gp_fuse_byte & 0x07) | value << 3);
}
int pm_configure_clocks(pm_freq_param_t *param)
{
// Supported frequencies:
// Fosc0 mul div PLL div2_en cpu_f pba_f Comment
// 12 15 1 192 1 12 12
// 12 9 3 40 1 20 20 PLL out of spec
// 12 15 1 192 1 24 12
// 12 9 1 120 1 30 15
// 12 9 3 40 0 40 20 PLL out of spec
// 12 15 1 192 1 48 12
// 12 15 1 192 1 48 24
// 12 8 1 108 1 54 27
// 12 9 1 120 1 60 15
// 12 9 1 120 1 60 30
// 12 10 1 132 1 66 16.5
//
unsigned long in_cpu_f = param->cpu_f;
unsigned long in_osc0_f = param->osc0_f;
unsigned long mul, div, div2_en = 0, div2_cpu = 0, div2_pba = 0;
unsigned long pll_freq, rest;
Bool b_div2_pba, b_div2_cpu;
// Switch to external Oscillator 0
pm_switch_to_osc0(&AVR32_PM, in_osc0_f, param->osc0_startup);
// Start with CPU freq config
if (in_cpu_f == in_osc0_f)
{
param->cpu_f = in_osc0_f;
param->pba_f = in_osc0_f;
return PM_FREQ_STATUS_OK;
}
else if (in_cpu_f < in_osc0_f)
{
// TBD
}
rest = in_cpu_f % in_osc0_f;
for (div = 1; div < 32; div++)
{
if ((div * rest) % in_osc0_f == 0)
break;
}
if (div == 32)
return PM_FREQ_STATUS_FAIL;
mul = (in_cpu_f * div) / in_osc0_f;
if (mul > PM_MAX_MUL)
return PM_FREQ_STATUS_FAIL;
// export 2power from PLL div to div2_cpu
while (!(div % 2))
{
div /= 2;
div2_cpu++;
}
// Here we know the mul and div parameter of the PLL config.
// . Check out if the PLL has a valid in_cpu_f.
// . Try to have for the PLL frequency (VCO output) the highest possible value
// to reduce jitter.
while (in_osc0_f * 2 * mul / div < AVR32_PM_PLL_VCO_RANGE0_MAX_FREQ)
{
if (2 * mul > PM_MAX_MUL)
break;
mul *= 2;
div2_cpu++;
}
if (div2_cpu != 0)
{
div2_cpu--;
div2_en = 1;
}
pll_freq = in_osc0_f * mul / (div * (1 << div2_en));
// Update real CPU Frequency
param->cpu_f = pll_freq / (1 << div2_cpu);
mul--;
pm_pll_setup(&AVR32_PM
, 0 // pll
, mul // mul
, div // div
, 0 // osc
, 16 // lockcount
);
pm_pll_set_option(&AVR32_PM
, 0 // pll
// PLL clock is lower than 160MHz: need to set pllopt.
, (pll_freq < AVR32_PM_PLL_VCO_RANGE0_MIN_FREQ) ? 1 : 0 // pll_freq
, div2_en // pll_div2
, 0 // pll_wbwdisable
);
rest = pll_freq;
while (rest > AVR32_PM_PBA_MAX_FREQ ||
rest != param->pba_f)
{
div2_pba++;
rest = pll_freq / (1 << div2_pba);
if (rest < param->pba_f)
break;
}
// Update real PBA Frequency
param->pba_f = pll_freq / (1 << div2_pba);
// Enable PLL0
pm_pll_enable(&AVR32_PM, 0);
// Wait for PLL0 locked
pm_wait_for_pll0_locked(&AVR32_PM);
if (div2_cpu)
{
b_div2_cpu = TRUE;
div2_cpu--;
}
else
b_div2_cpu = FALSE;
if (div2_pba)
{
b_div2_pba = TRUE;
div2_pba--;
}
else
b_div2_pba = FALSE;
pm_cksel(&AVR32_PM
, b_div2_pba, div2_pba // PBA
, b_div2_cpu, div2_cpu // PBB
, b_div2_cpu, div2_cpu // HSB
);
if (param->cpu_f > AVR32_FLASHC_FWS_0_MAX_FREQ)
{
flashc_set_wait_state(1);
#if (defined AVR32_FLASHC_210_H_INCLUDED)
if (param->cpu_f > AVR32_FLASHC_HSEN_FWS_1_MAX_FREQ)
flashc_issue_command(AVR32_FLASHC_FCMD_CMD_HSEN, -1);
else
flashc_issue_command(AVR32_FLASHC_FCMD_CMD_HSDIS, -1);
#endif
}
else
{
flashc_set_wait_state(0);
#if (defined AVR32_FLASHC_210_H_INCLUDED)
if (param->cpu_f > AVR32_FLASHC_HSEN_FWS_0_MAX_FREQ)
flashc_issue_command(AVR32_FLASHC_FCMD_CMD_HSEN, -1);
else
flashc_issue_command(AVR32_FLASHC_FCMD_CMD_HSDIS, -1);
#endif
}
pm_switch_to_clock(&AVR32_PM, AVR32_PM_MCCTRL_MCSEL_PLL0);
return PM_FREQ_STATUS_OK;
}