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Code Issues Releases Activity

clock: move pllx enable to clock object

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This commit is contained in:
CTCaer 2021-09-17 23:13:53 +03:00
parent d368b93fdd
commit 8f9d52aa89
3 changed files with 30 additions and 18 deletions
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19
bdk/soc/ccplex.c
View file

@ -58,24 +58,7 @@ void ccplex_boot_cpu0(u32 entry)
else
_ccplex_enable_power_t210b01();
// Enable PLLX and set it to 300 MHz.
if (!(CLOCK(CLK_RST_CONTROLLER_PLLX_BASE) & PLLX_BASE_ENABLE)) // PLLX_ENABLE.
{
CLOCK(CLK_RST_CONTROLLER_PLLX_MISC_3) &= 0xFFFFFFF7; // Disable IDDQ.
usleep(2);
// Bypass dividers.
CLOCK(CLK_RST_CONTROLLER_PLLX_BASE) = PLLX_BASE_BYPASS | (4 << 20) | (78 << 8) | 2; // P div: 4 (5), N div: 78, M div: 2.
// Disable bypass
CLOCK(CLK_RST_CONTROLLER_PLLX_BASE) = (4 << 20) | (78 << 8) | 2;
// Set PLLX_LOCK_ENABLE.
CLOCK(CLK_RST_CONTROLLER_PLLX_MISC) = (CLOCK(CLK_RST_CONTROLLER_PLLX_MISC) & 0xFFFBFFFF) | 0x40000;
// Enable PLLX.
CLOCK(CLK_RST_CONTROLLER_PLLX_BASE) = PLLX_BASE_ENABLE | (4 << 20) | (78 << 8) | 2;
}
// Wait for PLL to stabilize.
while (!(CLOCK(CLK_RST_CONTROLLER_PLLX_BASE) & PLLX_BASE_LOCK))
;
clock_enable_pllx();
// Configure MSELECT source and enable clock to 102MHz.
CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_MSELECT) = (CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_MSELECT) & 0x1FFFFF00) | 6;

26
bdk/soc/clock.c
View file

@ -279,6 +279,32 @@ void clock_disable_pwm()
clock_disable(&_clock_pwm);
}
void clock_enable_pllx()
{
// Configure and enable PLLX if disabled.
if (!(CLOCK(CLK_RST_CONTROLLER_PLLX_BASE) & PLLX_BASE_ENABLE)) // PLLX_ENABLE.
{
CLOCK(CLK_RST_CONTROLLER_PLLX_MISC_3) &= ~PLLX_MISC3_IDDQ; // Disable IDDQ.
usleep(2);
// Set div configuration.
const u32 pllx_div_cfg = (2 << 20) | (156 << 8) | 2; // P div: 2 (3), N div: 156, M div: 2. 998.4 MHz.
// Bypass dividers.
CLOCK(CLK_RST_CONTROLLER_PLLX_BASE) = PLLX_BASE_BYPASS | pllx_div_cfg;
// Disable bypass
CLOCK(CLK_RST_CONTROLLER_PLLX_BASE) = pllx_div_cfg;
// Set PLLX_LOCK_ENABLE.
CLOCK(CLK_RST_CONTROLLER_PLLX_MISC) |= PLLX_MISC_LOCK_EN;
// Enable PLLX.
CLOCK(CLK_RST_CONTROLLER_PLLX_BASE) = PLLX_BASE_ENABLE | pllx_div_cfg;
}
// Wait for PLL to stabilize.
while (!(CLOCK(CLK_RST_CONTROLLER_PLLX_BASE) & PLLX_BASE_LOCK))
;
}
void clock_enable_pllc(u32 divn)
{
u8 pll_divn_curr = (CLOCK(CLK_RST_CONTROLLER_PLLC_BASE) >> 10) & 0xFF;

3
bdk/soc/clock.h
View file

@ -167,6 +167,8 @@
#define PLLX_BASE_REF_DIS BIT(29)
#define PLLX_BASE_ENABLE BIT(30)
#define PLLX_BASE_BYPASS BIT(31)
#define PLLX_MISC_LOCK_EN BIT(18)
#define PLLX_MISC3_IDDQ BIT(3)
#define PLLCX_BASE_LOCK BIT(27)
#define PLLCX_BASE_REF_DIS BIT(29)
@ -628,6 +630,7 @@ void clock_enable_coresight();
void clock_disable_coresight();
void clock_enable_pwm();
void clock_disable_pwm();
void clock_enable_pllx();
void clock_enable_pllc(u32 divn);
void clock_disable_pllc();
void clock_enable_pllu();