diff options
author | Tom Warren <twarren@nvidia.com> | 2015-06-25 16:50:44 (GMT) |
---|---|---|
committer | Tom Warren <twarren@nvidia.com> | 2015-08-05 22:22:51 (GMT) |
commit | 722e000ccd7226c5cd071590b5361620eb0b126c (patch) | |
tree | 257ddcaf4039dd6722e743e8a1f4035c2f85387f /arch/arm/mach-tegra/tegra210/clock.c | |
parent | 3e8650c0f9cc7fb29bd75c11d0173768fcc80203 (diff) | |
download | u-boot-722e000ccd7226c5cd071590b5361620eb0b126c.tar.xz |
Tegra: PLL: use per-SoC pllinfo table instead of PLL_DIVM/N/P, etc.
Added PLL variables (dividers mask/shift, lock enable/detect, etc.)
to new pllinfo struct for each Soc/PLL. PLLA/C/D/E/M/P/U/X.
Used pllinfo struct in all clock functions, validated on T210.
Should be equivalent to prior code on T124/114/30/20. Thanks
to Marcel Ziswiler for corrections to the T20/T30 values.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'arch/arm/mach-tegra/tegra210/clock.c')
-rw-r--r-- | arch/arm/mach-tegra/tegra210/clock.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/arch/arm/mach-tegra/tegra210/clock.c b/arch/arm/mach-tegra/tegra210/clock.c index 7ac2a06..a7b3a94 100644 --- a/arch/arm/mach-tegra/tegra210/clock.c +++ b/arch/arm/mach-tegra/tegra210/clock.c @@ -631,6 +631,34 @@ static s8 periph_id_to_internal_id[PERIPH_ID_COUNT] = { }; /* + * PLL divider shift/mask tables for all PLL IDs. + */ +struct clk_pll_info tegra_pll_info_table[CLOCK_ID_PLL_COUNT] = { + /* + * NOTE: If kcp_mask/kvco_mask == 0, they're not used in that PLL (PLLC, etc.) + * If lock_ena or lock_det are >31, they're not used in that PLL (PLLC, etc.) + */ + { .m_shift = 0, .m_mask = 0xFF, .n_shift = 10, .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x1F, + .lock_ena = 32, .lock_det = 27, .kcp_shift = 0, .kcp_mask = 0, .kvco_shift = 0, .kvco_mask = 0 }, /* PLLC */ + { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8, .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x1F, + .lock_ena = 4, .lock_det = 27, .kcp_shift = 1, .kcp_mask = 3, .kvco_shift = 0, .kvco_mask = 1 }, /* PLLM */ + { .m_shift = 0, .m_mask = 0xFF, .n_shift = 10, .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x1F, + .lock_ena = 18, .lock_det = 27, .kcp_shift = 0, .kcp_mask = 3, .kvco_shift = 2, .kvco_mask = 1 }, /* PLLP */ + { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8, .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x1F, + .lock_ena = 28, .lock_det = 27, .kcp_shift = 25, .kcp_mask = 3, .kvco_shift = 24, .kvco_mask = 1 }, /* PLLA */ + { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8, .n_mask = 0xFF, .p_shift = 16, .p_mask = 0x1F, + .lock_ena = 29, .lock_det = 27, .kcp_shift = 25, .kcp_mask = 3, .kvco_shift = 24, .kvco_mask = 1 }, /* PLLU */ + { .m_shift = 0, .m_mask = 0xFF, .n_shift = 11, .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x07, + .lock_ena = 18, .lock_det = 27, .kcp_shift = 23, .kcp_mask = 3, .kvco_shift = 22, .kvco_mask = 1 }, /* PLLD */ + { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8, .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x1F, + .lock_ena = 18, .lock_det = 27, .kcp_shift = 1, .kcp_mask = 3, .kvco_shift = 0, .kvco_mask = 1 }, /* PLLX */ + { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8, .n_mask = 0xFF, .p_shift = 0, .p_mask = 0, + .lock_ena = 9, .lock_det = 11, .kcp_shift = 6, .kcp_mask = 3, .kvco_shift = 0, .kvco_mask = 1 }, /* PLLE */ + { .m_shift = 0, .m_mask = 0, .n_shift = 0, .n_mask = 0, .p_shift = 0, .p_mask = 0, + .lock_ena = 0, .lock_det = 0, .kcp_shift = 0, .kcp_mask = 0, .kvco_shift = 0, .kvco_mask = 0 }, /* PLLS (gone)*/ +}; + +/* * Get the oscillator frequency, from the corresponding hardware configuration * field. Note that Tegra30+ support 3 new higher freqs, but we map back * to the old T20 freqs. Support for the higher oscillators is TBD. @@ -903,6 +931,7 @@ void clock_early_init(void) { struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + struct clk_pll_info *pllinfo = &tegra_pll_info_table[CLOCK_ID_DISPLAY]; u32 data; tegra210_setup_pllp(); @@ -957,7 +986,7 @@ void clock_early_init(void) udelay(2); /* PLLD_MISC: Set CLKENABLE and LOCK_DETECT bits */ - data = (1 << PLLD_ENABLE_CLK) | (1 << PLLD_EN_LCKDET); + data = (1 << PLLD_ENABLE_CLK) | (1 << pllinfo->lock_ena); writel(data, &clkrst->crc_pll[CLOCK_ID_DISPLAY].pll_misc); udelay(2); } |