dump_pll.c

#include <stdio.h>
#include <fcntl.h>
#include <sys/mman.h>

void hexdump(uint32_t *d, int l) {
  for (int i = 0; i < l; i++) {
    if (i%0x10 == 0 && i != 0) printf("\n");
    printf("%8x ", d[i]);
  }
  printf("\n");
}

/* Power cluster primary PLL */
#define C0_PLL_MODE         0x0
#define C0_PLL_L_VAL        0x4
#define C0_PLL_ALPHA        0x8
#define C0_PLL_USER_CTL    0x10
#define C0_PLL_CONFIG_CTL  0x18
#define C0_PLL_CONFIG_CTL_HI 0x1C
#define C0_PLL_STATUS      0x28
#define C0_PLL_TEST_CTL_LO 0x20
#define C0_PLL_TEST_CTL_HI 0x24

/* Power cluster alt PLL */
#define C0_PLLA_MODE        0x100
#define C0_PLLA_L_VAL       0x104
#define C0_PLLA_ALPHA       0x108
#define C0_PLLA_USER_CTL    0x110
#define C0_PLLA_CONFIG_CTL  0x118
#define C0_PLLA_STATUS      0x128
#define C0_PLLA_TEST_CTL_LO 0x120

#define APC_DIAG_OFFSET 0x48
#define CLK_CTL_OFFSET 0x44
#define MUX_OFFSET 0x40
#define MDD_DROOP_CODE 0x7c
#define SSSCTL_OFFSET 0x160
#define PSCTL_OFFSET 0x164

int main() {
  int fd = open("/dev/mem", O_RDWR);
  volatile uint32_t *mb = (uint32_t *)mmap(0, 0x1000, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0x06400000);
  volatile uint32_t *mc = (uint32_t *)mmap(0, 0x1000, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0x06480000);
  volatile uint32_t *md = (uint32_t *)mmap(0, 0x1000, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0x09A20000);
  while (1) {
    printf("PLL MODE:%x L_VAL:%x ALPHA:%x USER_CTL:%x CONFIG_CTL:%x CONFIG_CTL_HI:%x STATUS:%x TEST_CTL_LO:%x TEST_CTL_HI:%x\n",
        mb[C0_PLL_MODE/4], mb[C0_PLL_L_VAL/4], mb[C0_PLL_ALPHA/4],
        mb[C0_PLL_USER_CTL/4], mb[C0_PLL_CONFIG_CTL/4], mb[C0_PLL_CONFIG_CTL_HI/4],
        mb[C0_PLL_STATUS/4], mb[C0_PLL_TEST_CTL_LO/4], mb[C0_PLL_TEST_CTL_HI/4]);
    printf("  MUX_OFFSET:%x CLK_CTL_OFFSET:%x APC_DIAG_OFFSET:%x MDD_DROOP_CODE:%x\n",
        mb[MUX_OFFSET/4], mb[CLK_CTL_OFFSET/4], mb[APC_DIAG_OFFSET/4], mb[MDD_DROOP_CODE/4]);
    printf("  PLLA MODE:%x L_VAL:%x ALPHA:%x USER_CTL:%x CONFIG_CTL:%x STATUS:%x TEST_CTL_LO:%x SSSCTL_OFFSET:%x PSCTL_OFFSET:%x\n",
        mb[C0_PLLA_MODE/4], mb[C0_PLLA_L_VAL/4], mb[C0_PLLA_ALPHA/4], mb[C0_PLLA_USER_CTL/4],
        mb[C0_PLLA_CONFIG_CTL/4], mb[C0_PLLA_STATUS/4], mb[C0_PLLA_TEST_CTL_LO/4],
        mb[SSSCTL_OFFSET/4], mb[PSCTL_OFFSET/4]);
    usleep(1000*100);
  }
}