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Code Issues Releases Activity

bdk: clock: add ext peripheral clock control

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This commit is contained in:
CTCaer 2022-05-09 06:08:39 +03:00
parent 47d06d0e8a
commit f452d916c9
3 changed files with 49 additions and 0 deletions
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35
bdk/soc/clock.c
View file

@ -17,6 +17,7 @@
#include <soc/clock.h>
#include <soc/hw_init.h>
#include <soc/pmc.h>
#include <soc/t210.h>
#include <storage/sdmmc.h>
#include <utils/util.h>
@ -109,6 +110,12 @@ static clock_t _clock_ahbdma = {
static clock_t _clock_actmon = {
CLK_RST_CONTROLLER_RST_DEVICES_V, CLK_RST_CONTROLLER_CLK_OUT_ENB_V, CLK_RST_CONTROLLER_CLK_SOURCE_ACTMON, CLK_V_ACTMON, 6, 0 // 19.2MHz.
};
static clock_t _clock_extperiph1 = {
CLK_RST_CONTROLLER_RST_DEVICES_V, CLK_RST_CONTROLLER_CLK_OUT_ENB_V, CLK_RST_CONTROLLER_CLK_SOURCE_EXTPERIPH1, CLK_V_EXTPERIPH1, 0, 0
};
static clock_t _clock_extperiph2 = {
CLK_RST_CONTROLLER_RST_DEVICES_V, CLK_RST_CONTROLLER_CLK_OUT_ENB_V, CLK_RST_CONTROLLER_CLK_SOURCE_EXTPERIPH2, CLK_V_EXTPERIPH2, 2, 202 // 4.0MHz
};
void clock_enable(const clock_t *clk)
{
@ -341,6 +348,34 @@ void clock_disable_actmon()
clock_disable(&_clock_actmon);
}
void clock_enable_extperiph1()
{
clock_enable(&_clock_extperiph1);
PMC(APBDEV_PMC_CLK_OUT_CNTRL) |= PMC_CLK_OUT_CNTRL_CLK1_SRC_SEL(OSC_CAR) | PMC_CLK_OUT_CNTRL_CLK1_FORCE_EN;
usleep(5);
}
void clock_disable_extperiph1()
{
PMC(APBDEV_PMC_CLK_OUT_CNTRL) &= ~((PMC_CLK_OUT_CNTRL_CLK1_SRC_SEL(OSC_CAR)) | PMC_CLK_OUT_CNTRL_CLK1_FORCE_EN);
clock_disable(&_clock_extperiph1);
}
void clock_enable_extperiph2()
{
clock_enable(&_clock_extperiph2);
PMC(APBDEV_PMC_CLK_OUT_CNTRL) |= PMC_CLK_OUT_CNTRL_CLK2_SRC_SEL(OSC_CAR) | PMC_CLK_OUT_CNTRL_CLK2_FORCE_EN;
usleep(5);
}
void clock_disable_extperiph2()
{
PMC(APBDEV_PMC_CLK_OUT_CNTRL) &= ~((PMC_CLK_OUT_CNTRL_CLK2_SRC_SEL(OSC_CAR)) | PMC_CLK_OUT_CNTRL_CLK2_FORCE_EN);
clock_disable(&_clock_extperiph2);
}
void clock_enable_plld(u32 divp, u32 divn, bool lowpower, bool tegra_t210)
{
u32 plld_div = (divp << 20) | (divn << 11) | 1;

6
bdk/soc/clock.h
View file

@ -119,6 +119,7 @@
#define CLK_RST_CONTROLLER_CLK_SOURCE_I2C4 0x3C4
#define CLK_RST_CONTROLLER_CLK_SOURCE_ACTMON 0x3E8
#define CLK_RST_CONTROLLER_CLK_SOURCE_EXTPERIPH1 0x3EC
#define CLK_RST_CONTROLLER_CLK_SOURCE_EXTPERIPH2 0x3F0
#define CLK_RST_CONTROLLER_CLK_SOURCE_SYS 0x400
#define CLK_RST_CONTROLLER_CLK_SOURCE_SOR1 0x410
#define CLK_RST_CONTROLLER_CLK_SOURCE_SE 0x42C
@ -670,6 +671,10 @@ void clock_enable_ahbdma();
void clock_disable_ahbdma();
void clock_enable_actmon();
void clock_disable_actmon();
void clock_enable_extperiph1();
void clock_disable_extperiph1();
void clock_enable_extperiph2();
void clock_disable_extperiph2();
void clock_enable_plld(u32 divp, u32 divn, bool lowpower, bool tegra_t210);
void clock_enable_pllx();
@ -678,6 +683,7 @@ 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);

8
bdk/soc/pmc.h
View file

@ -77,6 +77,14 @@
#define APBDEV_PMC_CLK_OUT_CNTRL 0x1A8
#define PMC_CLK_OUT_CNTRL_CLK1_FORCE_EN BIT(2)
#define PMC_CLK_OUT_CNTRL_CLK2_FORCE_EN BIT(10)
#define PMC_CLK_OUT_CNTRL_CLK3_FORCE_EN BIT(18)
#define PMC_CLK_OUT_CNTRL_CLK1_SRC_SEL(src) (((src) & 3) << 6)
#define PMC_CLK_OUT_CNTRL_CLK2_SRC_SEL(src) (((src) & 3) << 14)
#define PMC_CLK_OUT_CNTRL_CLK3_SRC_SEL(src) (((src) & 3) << 22)
#define OSC_DIV1 0
#define OSC_DIV2 1
#define OSC_DIV4 2
#define OSC_CAR 3
#define APBDEV_PMC_RST_STATUS 0x1B4
#define PMC_RST_STATUS_MASK 7
#define PMC_RST_STATUS_POR 0