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warmboot: add crail power on code

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This commit is contained in:
Michael Scire 2018-12-17 17:03:39 -08:00
parent 754aaecc18
commit 72594c6783
3 changed files with 46 additions and 3 deletions
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3
exosphere/lp0fw/src/car.h
View file

@ -63,6 +63,9 @@
#define CLK_RST_CONTROLLER_CLK_ENB_V_SET_0 MAKE_CAR_REG(0x440) #define CLK_RST_CONTROLLER_CLK_ENB_V_SET_0 MAKE_CAR_REG(0x440)
#define CLK_RST_CONTROLLER_CLK_ENB_W_SET_0 MAKE_CAR_REG(0x448) #define CLK_RST_CONTROLLER_CLK_ENB_W_SET_0 MAKE_CAR_REG(0x448)
#define CLK_RST_CONTROLLER_CLK_ENB_H_CLR_0 MAKE_CAR_REG(0x32C)
#define CLK_RST_CONTROLLER_CLK_ENB_W_CLR_0 MAKE_CAR_REG(0x44C)
#define NUM_CAR_BANKS 7 #define NUM_CAR_BANKS 7
typedef enum { typedef enum {

40
exosphere/lp0fw/src/cluster.c
View file

@ -25,6 +25,20 @@
#include "i2c.h" #include "i2c.h"
#include "sysreg.h" #include "sysreg.h"
static void cluster_pmc_enable_partition(uint32_t mask, uint32_t toggle) {
/* Set toggle if unset. */
if (!(APBDEV_PMC_PWRGATE_STATUS_0 & mask)) {
APBDEV_PMC_PWRGATE_TOGGLE_0 = toggle;
}
/* Wait until toggle set. */
while (!(APBDEV_PMC_PWRGATE_STATUS_0 & mask)) { }
/* Remove clamping. */
APBDEV_PMC_REMOVE_CLAMPING_CMD_0 = mask;
while (!(APBDEV_PMC_CLAMP_STATUS_0 & mask)) { }
}
void cluster_initialize_cpu(void) { void cluster_initialize_cpu(void) {
/* Hold CoreSight in reset. */ /* Hold CoreSight in reset. */
CLK_RST_CONTROLLER_RST_DEV_U_SET_0 = 0x200; CLK_RST_CONTROLLER_RST_DEV_U_SET_0 = 0x200;
@ -88,8 +102,32 @@ void cluster_initialize_cpu(void) {
CLK_RST_CONTROLLER_CLK_SOURCE_I2C5_0 = 0x4; CLK_RST_CONTROLLER_CLK_SOURCE_I2C5_0 = 0x4;
CLK_RST_CONTROLLER_RST_DEV_H_CLR_0 = 0x8000; CLK_RST_CONTROLLER_RST_DEV_H_CLR_0 = 0x8000;
/* Enable the PMIC. */ /* Enable the PMIC, wait 2ms. */
i2c_enable_pmic(); i2c_enable_pmic();
timer_wait(2000);
/* Enable power to the CRAIL partition. */
cluster_pmc_enable_partition(1, 0x100);
/* Remove SW clamp to CRAIL. */
APBDEV_PMC_SET_SW_CLAMP_0 = 0;
APBDEV_PMC_REMOVE_CLAMPING_CMD_0 = 1;
while (!(APBDEV_PMC_CLAMP_STATUS_0 & 1)) { }
/* Nintendo manually counts down from 8. I am not sure why this happens. */
{
volatile int32_t counter = 8;
while (counter >= 0) {
counter--;
}
}
/* Power off I2C5. */
CLK_RST_CONTROLLER_RST_DEV_H_SET_0 = 0x8000;
CLK_RST_CONTROLLER_CLK_ENB_H_CLR_0 = 0x8000;
/* Disable clock to CL_DVFS */
CLK_RST_CONTROLLER_CLK_ENB_W_CLR_0 = 0x08000000;
/* TODO: This function is enormous */ /* TODO: This function is enormous */
} }

2
exosphere/lp0fw/src/pmc.h
View file

@ -31,6 +31,8 @@
#define APBDEV_PMC_CLAMP_STATUS_0 MAKE_PMC_REG(0x02C) #define APBDEV_PMC_CLAMP_STATUS_0 MAKE_PMC_REG(0x02C)
#define APBDEV_PMC_PWRGATE_TOGGLE_0 MAKE_PMC_REG(0x030)
#define APBDEV_PMC_REMOVE_CLAMPING_CMD_0 MAKE_PMC_REG(0x034)
#define APBDEV_PMC_PWRGATE_STATUS_0 MAKE_PMC_REG(0x038) #define APBDEV_PMC_PWRGATE_STATUS_0 MAKE_PMC_REG(0x038)
#define APBDEV_PMC_SCRATCH12_0 MAKE_PMC_REG(0x080) #define APBDEV_PMC_SCRATCH12_0 MAKE_PMC_REG(0x080)