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Code Issues Releases Activity

clock: Move UTMIPLL init from USB to clock

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This commit is contained in:
CTCaer 2020-11-15 14:43:36 +02:00
parent 8305058cf5
commit 0b314d7f21
3 changed files with 21 additions and 12 deletions
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16
bdk/soc/clock.c
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@ -388,6 +388,22 @@ void clock_disable_pllu()
CLOCK(CLK_RST_CONTROLLER_PLLU_MISC) &= ~0x20000000; // Enable reference clock.
}
void clock_enable_utmipll()
{
// Set UTMIPLL dividers and config based on OSC and enable it to 960 MHz.
CLOCK(CLK_RST_CONTROLLER_UTMIP_PLL_CFG0) = (CLOCK(CLK_RST_CONTROLLER_UTMIP_PLL_CFG0) & 0xFF0000FF) | (25 << 16) | (1 << 8); // 38.4Mhz * (25 / 1) = 960 MHz.
CLOCK(CLK_RST_CONTROLLER_UTMIP_PLL_CFG2) = (CLOCK(CLK_RST_CONTROLLER_UTMIP_PLL_CFG2) & 0xFF00003F) | (24 << 18); // Set delay count for 38.4Mhz osc crystal.
CLOCK(CLK_RST_CONTROLLER_UTMIP_PLL_CFG1) = (CLOCK(CLK_RST_CONTROLLER_UTMIP_PLL_CFG1) & 0x7FFA000) | (1 << 15) | 375;
// Wait for UTMIPLL to stabilize.
u32 retries = 10; // Wait 20us
while (!(CLOCK(CLK_RST_CONTROLLER_UTMIPLL_HW_PWRDN_CFG0) & UTMIPLL_LOCK) && retries)
{
usleep(1);
retries--;
}
}
static int _clock_sdmmc_is_reset(u32 id)
{
switch (id)

3
bdk/soc/clock.h
View file

@ -171,6 +171,8 @@
#define PLLC4_OUT3_CLKEN (1 << 1)
#define PLLC4_OUT3_RSTN_CLR (1 << 0)
#define UTMIPLL_LOCK (1 << 31)
/*
* CLOCK Peripherals:
* L 0 - 31
@ -480,6 +482,7 @@ void clock_enable_pllc(u32 divn);
void clock_disable_pllc();
void clock_enable_pllu();
void clock_disable_pllu();
void clock_enable_utmipll();
void clock_sdmmc_config_clock_source(u32 *pclock, u32 id, u32 val);
void clock_sdmmc_get_card_clock_div(u32 *pclock, u16 *pdivisor, u32 type);
int clock_sdmmc_is_not_reset_and_enabled(u32 id);

14
bdk/usb/usbd.c
View file

@ -278,18 +278,8 @@ int usb_device_init()
USB(USB1_IF_USB_PHY_VBUS_SENSORS) |= 0x1000;
USB(USB1_IF_USB_PHY_VBUS_SENSORS) |= 0x800;
// Set UTMIPLL dividers and enable it.
CLOCK(CLK_RST_CONTROLLER_UTMIP_PLL_CFG0) = (CLOCK(CLK_RST_CONTROLLER_UTMIP_PLL_CFG0) & 0xFF0000FF) | 0x190000 | 0x100;
CLOCK(CLK_RST_CONTROLLER_UTMIP_PLL_CFG2) = (CLOCK(CLK_RST_CONTROLLER_UTMIP_PLL_CFG2) & 0xFF00003F) | 0x600000; // Set delay count for 38.4Mhz osc crystal.
CLOCK(CLK_RST_CONTROLLER_UTMIP_PLL_CFG1) = ((CLOCK(CLK_RST_CONTROLLER_UTMIP_PLL_CFG1) & 0x7FFF000) | 0x8000 | 0x177) & 0xFFFFAFFF;
// Wait for UTMIPLL to stabilize.
u32 retries = 10; // Wait 20us
while (!(CLOCK(CLK_RST_CONTROLLER_UTMIPLL_HW_PWRDN_CFG0) & 0x80000000) && retries)
{
usleep(1);
retries--;
}
// Set UTMIPLL dividers and config based on OSC and enable it to 960 MHz.
clock_enable_utmipll();
// Configure UTMIP Transceiver Cells.
u32 fuse_usb_calib = FUSE(FUSE_USB_CALIB);