diff options
Diffstat (limited to 'src/soc/nvidia/tegra124/clock.c')
| -rw-r--r-- | src/soc/nvidia/tegra124/clock.c | 66 |
1 files changed, 50 insertions, 16 deletions
diff --git a/src/soc/nvidia/tegra124/clock.c b/src/soc/nvidia/tegra124/clock.c index 1d124b220f..8009b48080 100644 --- a/src/soc/nvidia/tegra124/clock.c +++ b/src/soc/nvidia/tegra124/clock.c @@ -243,14 +243,25 @@ static void init_utmip_pll(void) clrbits_le32(&clk_rst->utmip_pll_cfg2, 1 << 30); /* PHY_XTAL_CLKEN */ udelay(1); - write32(&clk_rst->utmip_pll_cfg0, 80 << 16 | 1 << 8 | 0); /* 960MHz * 1 / 80 == 12 MHz */ + write32(&clk_rst->utmip_pll_cfg0, /* 960MHz * 1 / 80 == 12 MHz */ + 80 << 16 | /* (rst) phy_divn */ + 1 << 8); /* (rst) phy_divm */ write32(&clk_rst->utmip_pll_cfg1, - CEIL_DIV(khz, 8000) << 27 | 0 << 16 | 0 << 14 | 0 << 12 | CEIL_DIV(khz, 102) << 0 | 0); + CEIL_DIV(khz, 8000) << 27 | /* pllu_enbl_cnt / 8 (1us) */ + 0 << 16 | /* PLLU pwrdn */ + 0 << 14 | /* pll_enable pwrdn */ + 0 << 12 | /* pll_active pwrdn */ + CEIL_DIV(khz, 102) << 0); /* phy_stbl_cnt / 256 (2.5ms) */ /* TODO: TRM can't decide if actv is 5us or 10us, keep an eye on it */ write32(&clk_rst->utmip_pll_cfg2, - 0 << 24 | CEIL_DIV(khz, 3200) << 18 | CEIL_DIV(khz, 256) << 6 | 0 << 4 | 0 << 2 | 0 << 0 | 0); + 0 << 24 | /* SAMP_D/XDEV pwrdn */ + CEIL_DIV(khz, 3200) << 18 | /* phy_actv_cnt / 16 (5us) */ + CEIL_DIV(khz, 256) << 6 | /* pllu_stbl_cnt / 256 (1ms) */ + 0 << 4 | /* SAMP_C/USB3 pwrdn */ + 0 << 2 | /* SAMP_B/XHOST pwrdn */ + 0 << 0); /* SAMP_A/USBD pwrdn */ setbits_le32(&clk_rst->utmip_pll_cfg2, 1 << 30); /* PHY_XTAL_CLKEN */ } @@ -387,8 +398,8 @@ clock_display(u32 frequency) * been determined through trial and error (must lead to div 13 at 24MHz). */ void clock_early_uart(void) { - write32(&clk_rst->clk_src_uarta, - CLK_M << CLK_SOURCE_SHIFT | CLK_UART_DIV_OVERRIDE | CLK_DIVIDER(TEGRA_CLK_M_KHZ, 1900)); + write32(&clk_rst->clk_src_uarta, CLK_M << CLK_SOURCE_SHIFT | + CLK_UART_DIV_OVERRIDE | CLK_DIVIDER(TEGRA_CLK_M_KHZ, 1900)); setbits_le32(&clk_rst->clk_out_enb_l, CLK_L_UARTA); udelay(2); clrbits_le32(&clk_rst->rst_dev_l, CLK_L_UARTA); @@ -484,7 +495,11 @@ void clock_cpu0_config(void *entry) // Set up cclk_brst and divider. write32(&clk_rst->cclk_brst_pol, - (CRC_CCLK_BRST_POL_PLLX_OUT0 << 0) | (CRC_CCLK_BRST_POL_PLLX_OUT0 << 4) | (CRC_CCLK_BRST_POL_PLLX_OUT0 << 8) | (CRC_CCLK_BRST_POL_PLLX_OUT0 << 12) | (CRC_CCLK_BRST_POL_CPU_STATE_RUN << 28)); + (CRC_CCLK_BRST_POL_PLLX_OUT0 << 0) | + (CRC_CCLK_BRST_POL_PLLX_OUT0 << 4) | + (CRC_CCLK_BRST_POL_PLLX_OUT0 << 8) | + (CRC_CCLK_BRST_POL_PLLX_OUT0 << 12) | + (CRC_CCLK_BRST_POL_CPU_STATE_RUN << 28)); write32(&clk_rst->super_cclk_div, CRC_SUPER_CCLK_DIVIDER_SUPER_CDIV_ENB); @@ -506,20 +521,31 @@ void clock_cpu0_remove_reset(void) write32(&clk_rst->rst_cpug_cmplx_clr, CRC_RST_CPUG_CLR_NONCPU); // Disable the various resets on the CPUs. write32(&clk_rst->rst_cpug_cmplx_clr, - CRC_RST_CPUG_CLR_CPU0 | CRC_RST_CPUG_CLR_CPU1 | CRC_RST_CPUG_CLR_CPU2 | CRC_RST_CPUG_CLR_CPU3 | CRC_RST_CPUG_CLR_DBG0 | CRC_RST_CPUG_CLR_DBG1 | CRC_RST_CPUG_CLR_DBG2 | CRC_RST_CPUG_CLR_DBG3 | CRC_RST_CPUG_CLR_CORE0 | CRC_RST_CPUG_CLR_CORE1 | CRC_RST_CPUG_CLR_CORE2 | CRC_RST_CPUG_CLR_CORE3 | CRC_RST_CPUG_CLR_CX0 | CRC_RST_CPUG_CLR_CX1 | CRC_RST_CPUG_CLR_CX2 | CRC_RST_CPUG_CLR_CX3 | CRC_RST_CPUG_CLR_L2 | CRC_RST_CPUG_CLR_PDBG); + CRC_RST_CPUG_CLR_CPU0 | CRC_RST_CPUG_CLR_CPU1 | + CRC_RST_CPUG_CLR_CPU2 | CRC_RST_CPUG_CLR_CPU3 | + CRC_RST_CPUG_CLR_DBG0 | CRC_RST_CPUG_CLR_DBG1 | + CRC_RST_CPUG_CLR_DBG2 | CRC_RST_CPUG_CLR_DBG3 | + CRC_RST_CPUG_CLR_CORE0 | CRC_RST_CPUG_CLR_CORE1 | + CRC_RST_CPUG_CLR_CORE2 | CRC_RST_CPUG_CLR_CORE3 | + CRC_RST_CPUG_CLR_CX0 | CRC_RST_CPUG_CLR_CX1 | + CRC_RST_CPUG_CLR_CX2 | CRC_RST_CPUG_CLR_CX3 | + CRC_RST_CPUG_CLR_L2 | CRC_RST_CPUG_CLR_PDBG); // Disable the reset on the non-CPU parts of the slow cluster. write32(&clk_rst->rst_cpulp_cmplx_clr, CRC_RST_CPULP_CLR_NONCPU); // Disable the various resets on the LP CPU. write32(&clk_rst->rst_cpulp_cmplx_clr, - CRC_RST_CPULP_CLR_CPU0 | CRC_RST_CPULP_CLR_DBG0 | CRC_RST_CPULP_CLR_CORE0 | CRC_RST_CPULP_CLR_CX0 | CRC_RST_CPULP_CLR_L2 | CRC_RST_CPULP_CLR_PDBG); + CRC_RST_CPULP_CLR_CPU0 | CRC_RST_CPULP_CLR_DBG0 | + CRC_RST_CPULP_CLR_CORE0 | CRC_RST_CPULP_CLR_CX0 | + CRC_RST_CPULP_CLR_L2 | CRC_RST_CPULP_CLR_PDBG); } void clock_halt_avp(void) { for (;;) { write32(&flow->halt_cop_events, - FLOW_EVENT_JTAG | FLOW_EVENT_LIC_IRQ | FLOW_EVENT_GIC_IRQ | FLOW_MODE_WAITEVENT); + FLOW_EVENT_JTAG | FLOW_EVENT_LIC_IRQ | + FLOW_EVENT_GIC_IRQ | FLOW_MODE_WAITEVENT); } } @@ -537,11 +563,13 @@ void clock_init(void) /* Typical ratios are 1:2:2 or 1:2:3 sclk:hclk:pclk (See: APB DMA * features section in the TRM). */ write32(&clk_rst->clk_sys_rate, - TEGRA_HCLK_RATIO << HCLK_DIVISOR_SHIFT | TEGRA_PCLK_RATIO << PCLK_DIVISOR_SHIFT); - write32(&clk_rst->pllc_out, - CLK_DIVIDER(TEGRA_PLLC_KHZ, TEGRA_SCLK_KHZ) << PLL_OUT_RATIO_SHIFT | PLL_OUT_CLKEN | PLL_OUT_RSTN); - write32(&clk_rst->sclk_brst_pol, - SCLK_SYS_STATE_RUN << SCLK_SYS_STATE_SHIFT | SCLK_SOURCE_PLLC_OUT1 << SCLK_RUN_SHIFT); /* sclk = 300 MHz */ + TEGRA_HCLK_RATIO << HCLK_DIVISOR_SHIFT | + TEGRA_PCLK_RATIO << PCLK_DIVISOR_SHIFT); + write32(&clk_rst->pllc_out, CLK_DIVIDER(TEGRA_PLLC_KHZ, TEGRA_SCLK_KHZ) + << PLL_OUT_RATIO_SHIFT | PLL_OUT_CLKEN | PLL_OUT_RSTN); + write32(&clk_rst->sclk_brst_pol, /* sclk = 300 MHz */ + SCLK_SYS_STATE_RUN << SCLK_SYS_STATE_SHIFT | + SCLK_SOURCE_PLLC_OUT1 << SCLK_RUN_SHIFT); /* Change the oscillator drive strength (from U-Boot -- why?) */ clrsetbits_le32(&clk_rst->osc_ctrl, OSC_XOFS_MASK, @@ -560,9 +588,15 @@ void clock_init(void) /* Set up PLLP_OUT(1|2|3|4) divisor to generate (9.6|48|102|204)MHz */ write32(&clk_rst->pllp_outa, - (CLK_DIVIDER(TEGRA_PLLP_KHZ, 9600) << PLL_OUT_RATIO_SHIFT | PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT1_SHIFT | (CLK_DIVIDER(TEGRA_PLLP_KHZ, 48000) << PLL_OUT_RATIO_SHIFT | PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT2_SHIFT); + (CLK_DIVIDER(TEGRA_PLLP_KHZ, 9600) << PLL_OUT_RATIO_SHIFT | + PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT1_SHIFT | + (CLK_DIVIDER(TEGRA_PLLP_KHZ, 48000) << PLL_OUT_RATIO_SHIFT | + PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT2_SHIFT); write32(&clk_rst->pllp_outb, - (CLK_DIVIDER(TEGRA_PLLP_KHZ, 102000) << PLL_OUT_RATIO_SHIFT | PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT3_SHIFT | (CLK_DIVIDER(TEGRA_PLLP_KHZ, 204000) << PLL_OUT_RATIO_SHIFT | PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT4_SHIFT); + (CLK_DIVIDER(TEGRA_PLLP_KHZ, 102000) << PLL_OUT_RATIO_SHIFT | + PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT3_SHIFT | + (CLK_DIVIDER(TEGRA_PLLP_KHZ, 204000) << PLL_OUT_RATIO_SHIFT | + PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT4_SHIFT); /* init pllx */ init_pll(&clk_rst->pllx_base, &clk_rst->pllx_misc, |