diff options
| -rw-r--r-- | src/soc/nvidia/tegra124/lp0/tegra_lp0_resume.c | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/src/soc/nvidia/tegra124/lp0/tegra_lp0_resume.c b/src/soc/nvidia/tegra124/lp0/tegra_lp0_resume.c index 0b519d6794..9b1a4b5562 100644 --- a/src/soc/nvidia/tegra124/lp0/tegra_lp0_resume.c +++ b/src/soc/nvidia/tegra124/lp0/tegra_lp0_resume.c @@ -419,6 +419,13 @@ static void config_tsc(void) setbits32(TSC_CNTCR_ENABLE | TSC_CNTCR_HDBG, sysctr_cntcr_ptr); } +static void enable_cpu_clocks(void) +{ + // Enable the CPU complex clock. + write32(CLK_ENB_CPU, clk_rst_clk_enb_l_set_ptr); + write32(CLK_ENB_CPUG | CLK_ENB_CPULP, clk_rst_clk_enb_v_set_ptr); +} + /* Function unit configuration. */ @@ -505,15 +512,15 @@ static void power_on_main_cpu(void) * Note that PMC_CPUPWRGOOD_TIMER is running at pclk. * * We need to reprogram PMC_CPUPWRGOOD_TIMER based on the current pclk - * which is at 408Mhz (pclk = sclk = pllp_out0) after reset. Multiply - * PMC_CPUPWRGOOD_TIMER by 408M / 32K. + * which is at 204Mhz (pclk = sclk = pllp_out2) after BootROM. Multiply + * PMC_CPUPWRGOOD_TIMER by 204M / 32K. * * Save the original PMC_CPUPWRGOOD_TIMER register which we need to * restore after the CPU is powered up. */ uint32_t orig_timer = read32(pmc_ctlr_cpupwrgood_timer_ptr); - write32(orig_timer * (408000000 / 32768), + write32(orig_timer * (204000000 / 32768), pmc_ctlr_cpupwrgood_timer_ptr); if (wakeup_on_lp()) { @@ -525,10 +532,6 @@ static void power_on_main_cpu(void) power_on_partition(PARTID_CE0); } - // Give I/O signals time to stablize. - write32(20 | EVENT_MSEC | FLOW_MODE_STOP, - flow_ctlr_halt_cop_events_ptr); - // Restore the original PMC_CPUPWRGOOD_TIMER. write32(orig_timer, pmc_ctlr_cpupwrgood_timer_ptr); } @@ -575,12 +578,6 @@ void lp0_resume(void) ack_width |= 408 << CAR2PMC_CPU_ACK_WIDTH_SHIFT; write32(ack_width, clk_rst_cpu_softrst_ctrl2_ptr); - // Enable the CPU complex clock. - write32(CLK_ENB_CPU, clk_rst_clk_enb_l_set_ptr); - write32(CLK_ENB_CPUG | CLK_ENB_CPULP, clk_rst_clk_enb_v_set_ptr); - - clear_cpu_resets(); - config_tsc(); // Disable VPR. @@ -588,8 +585,12 @@ void lp0_resume(void) write32(VIDEO_PROTECT_WRITE_ACCESS_DISABLE, mc_video_protect_reg_ctrl_ptr); + enable_cpu_clocks(); + power_on_main_cpu(); + clear_cpu_resets(); + // Halt the AVP. while (1) write32(FLOW_MODE_STOP | EVENT_JTAG, |