diff options
Diffstat (limited to 'arch/arm/cpu/arm720t/tegra-common/cpu.c')
| -rw-r--r-- | arch/arm/cpu/arm720t/tegra-common/cpu.c | 89 |
1 files changed, 64 insertions, 25 deletions
diff --git a/arch/arm/cpu/arm720t/tegra-common/cpu.c b/arch/arm/cpu/arm720t/tegra-common/cpu.c index 9294611be..72c69b914 100644 --- a/arch/arm/cpu/arm720t/tegra-common/cpu.c +++ b/arch/arm/cpu/arm720t/tegra-common/cpu.c @@ -49,33 +49,68 @@ int get_num_cpus(void) * Timing tables for each SOC for all four oscillator options. */ struct clk_pll_table tegra_pll_x_table[TEGRA_SOC_CNT][CLOCK_OSC_FREQ_COUNT] = { - /* T20: 1 GHz */ - /* n, m, p, cpcon */ - {{ 1000, 13, 0, 12}, /* OSC 13M */ - { 625, 12, 0, 8}, /* OSC 19.2M */ - { 1000, 12, 0, 12}, /* OSC 12M */ - { 1000, 26, 0, 12}, /* OSC 26M */ + /* + * T20: 1 GHz + * + * Register Field Bits Width + * ------------------------------ + * PLLX_BASE p 22:20 3 + * PLLX_BASE n 17: 8 10 + * PLLX_BASE m 4: 0 5 + * PLLX_MISC cpcon 11: 8 4 + */ + { + { .n = 1000, .m = 13, .p = 0, .cpcon = 12 }, /* OSC: 13.0 MHz */ + { .n = 625, .m = 12, .p = 0, .cpcon = 8 }, /* OSC: 19.2 MHz */ + { .n = 1000, .m = 12, .p = 0, .cpcon = 12 }, /* OSC: 12.0 MHz */ + { .n = 1000, .m = 26, .p = 0, .cpcon = 12 }, /* OSC: 26.0 MHz */ }, - - /* T25: 1.2 GHz */ - {{ 923, 10, 0, 12}, - { 750, 12, 0, 8}, - { 600, 6, 0, 12}, - { 600, 13, 0, 12}, + /* + * T25: 1.2 GHz + * + * Register Field Bits Width + * ------------------------------ + * PLLX_BASE p 22:20 3 + * PLLX_BASE n 17: 8 10 + * PLLX_BASE m 4: 0 5 + * PLLX_MISC cpcon 11: 8 4 + */ + { + { .n = 923, .m = 10, .p = 0, .cpcon = 12 }, /* OSC: 13.0 MHz */ + { .n = 750, .m = 12, .p = 0, .cpcon = 8 }, /* OSC: 19.2 MHz */ + { .n = 600, .m = 6, .p = 0, .cpcon = 12 }, /* OSC: 12.0 MHz */ + { .n = 600, .m = 13, .p = 0, .cpcon = 12 }, /* OSC: 26.0 MHz */ }, - - /* T30: 1.4 GHz */ - {{ 862, 8, 0, 8}, - { 583, 8, 0, 4}, - { 700, 6, 0, 8}, - { 700, 13, 0, 8}, + /* + * T30: 1.4 GHz + * + * Register Field Bits Width + * ------------------------------ + * PLLX_BASE p 22:20 3 + * PLLX_BASE n 17: 8 10 + * PLLX_BASE m 4: 0 5 + * PLLX_MISC cpcon 11: 8 4 + */ + { + { .n = 862, .m = 8, .p = 0, .cpcon = 8 }, /* OSC: 13.0 MHz */ + { .n = 583, .m = 8, .p = 0, .cpcon = 4 }, /* OSC: 19.2 MHz */ + { .n = 700, .m = 6, .p = 0, .cpcon = 8 }, /* OSC: 12.0 MHz */ + { .n = 700, .m = 13, .p = 0, .cpcon = 8 }, /* OSC: 26.0 MHz */ }, - - /* T114: 1.4 GHz */ - {{ 862, 8, 0, 8}, - { 583, 8, 0, 4}, - { 696, 12, 0, 8}, - { 700, 13, 0, 8}, + /* + * T114: 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 */ }, }; @@ -100,6 +135,7 @@ void adjust_pllp_out_freqs(void) int pllx_set_rate(struct clk_pll_simple *pll , u32 divn, u32 divm, u32 divp, u32 cpcon) { + int chip = tegra_get_chip(); u32 reg; /* If PLLX is already enabled, just return */ @@ -116,7 +152,10 @@ int pllx_set_rate(struct clk_pll_simple *pll , u32 divn, u32 divm, writel(reg, &pll->pll_base); /* Set cpcon to PLLX_MISC */ - reg = (cpcon << PLL_CPCON_SHIFT); + if (chip == CHIPID_TEGRA20 || chip == CHIPID_TEGRA30) + reg = (cpcon << PLL_CPCON_SHIFT); + else + reg = 0; /* Set dccon to PLLX_MISC if freq > 600MHz */ if (divn > 600) |