diff options
Diffstat (limited to 'arch/arm/cpu/arm720t/tegra-common/cpu.c')
| -rw-r--r-- | arch/arm/cpu/arm720t/tegra-common/cpu.c | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/arch/arm/cpu/arm720t/tegra-common/cpu.c b/arch/arm/cpu/arm720t/tegra-common/cpu.c index d62bb9e370..2c5cd63917 100644 --- a/arch/arm/cpu/arm720t/tegra-common/cpu.c +++ b/arch/arm/cpu/arm720t/tegra-common/cpu.c @@ -112,8 +112,40 @@ struct clk_pll_table tegra_pll_x_table[TEGRA_SOC_CNT][CLOCK_OSC_FREQ_COUNT] = { { .n = 116, .m = 1, .p = 1 }, /* OSC: 12.0 MHz */ { .n = 108, .m = 2, .p = 1 }, /* OSC: 26.0 MHz */ }, + + /* + * T124: 700 MHz + * + * Register Field Bits Width + * ------------------------------ + * PLLX_BASE p 23:20 4 + * PLLX_BASE n 15: 8 8 + * PLLX_BASE m 7: 0 8 + */ + { + { .n = 108, .m = 1, .p = 1 }, /* OSC: 13.0 MHz */ + { .n = 73, .m = 1, .p = 1 }, /* OSC: 19.2 MHz */ + { .n = 116, .m = 1, .p = 1 }, /* OSC: 12.0 MHz */ + { .n = 108, .m = 2, .p = 1 }, /* OSC: 26.0 MHz */ + }, }; +static inline void pllx_set_iddq(void) +{ +#if defined(CONFIG_TEGRA124) + struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 reg; + + /* Disable IDDQ */ + reg = readl(&clkrst->crc_pllx_misc3); + reg &= ~PLLX_IDDQ_MASK; + writel(reg, &clkrst->crc_pllx_misc3); + udelay(2); + debug("%s: IDDQ: PLLX IDDQ = 0x%08X\n", __func__, + readl(&clkrst->crc_pllx_misc3)); +#endif +} + int pllx_set_rate(struct clk_pll_simple *pll , u32 divn, u32 divm, u32 divp, u32 cpcon) { @@ -128,6 +160,8 @@ int pllx_set_rate(struct clk_pll_simple *pll , u32 divn, u32 divm, debug(" pllx_set_rate entry\n"); + pllx_set_iddq(); + /* Set BYPASS, m, n and p to PLLX_BASE */ reg = PLL_BYPASS_MASK | (divm << PLL_DIVM_SHIFT); reg |= ((divn << PLL_DIVN_SHIFT) | (divp << PLL_DIVP_SHIFT)); @@ -323,7 +357,7 @@ void clock_enable_coresight(int enable) if (enable) { /* * Put CoreSight on PLLP_OUT0 and divide it down as per - * PLLP base frequency based on SoC type (T20/T30/T114). + * PLLP base frequency based on SoC type (T20/T30+). * Clock divider request would setup CSITE clock as 144MHz * for PLLP base 216MHz and 204MHz for PLLP base 408MHz */ |
