| /* |
| * Clock initialization routines |
| * |
| * Copyright (c) 2011 The Chromium OS Authors. |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| |
| #ifndef __EXYNOS_CLOCK_INIT_H |
| #define __EXYNOS_CLOCK_INIT_H |
| |
| enum { |
| MEM_TIMINGS_MSR_COUNT = 4, |
| }; |
| |
| /* These are the ratio's for configuring ARM clock */ |
| struct arm_clk_ratios { |
| unsigned arm_freq_mhz; /* Frequency of ARM core in MHz */ |
| |
| unsigned apll_mdiv; |
| unsigned apll_pdiv; |
| unsigned apll_sdiv; |
| |
| unsigned arm2_ratio; |
| unsigned apll_ratio; |
| unsigned pclk_dbg_ratio; |
| unsigned atb_ratio; |
| unsigned periph_ratio; |
| unsigned acp_ratio; |
| unsigned cpud_ratio; |
| unsigned arm_ratio; |
| }; |
| |
| /* These are the memory timings for a particular memory type and speed */ |
| struct mem_timings { |
| enum mem_manuf mem_manuf; /* Memory manufacturer */ |
| enum ddr_mode mem_type; /* Memory type */ |
| unsigned frequency_mhz; /* Frequency of memory in MHz */ |
| |
| /* Here follow the timing parameters for the selected memory */ |
| unsigned apll_mdiv; |
| unsigned apll_pdiv; |
| unsigned apll_sdiv; |
| unsigned mpll_mdiv; |
| unsigned mpll_pdiv; |
| unsigned mpll_sdiv; |
| unsigned cpll_mdiv; |
| unsigned cpll_pdiv; |
| unsigned cpll_sdiv; |
| unsigned gpll_mdiv; |
| unsigned gpll_pdiv; |
| unsigned gpll_sdiv; |
| unsigned epll_mdiv; |
| unsigned epll_pdiv; |
| unsigned epll_sdiv; |
| unsigned vpll_mdiv; |
| unsigned vpll_pdiv; |
| unsigned vpll_sdiv; |
| unsigned bpll_mdiv; |
| unsigned bpll_pdiv; |
| unsigned bpll_sdiv; |
| unsigned pclk_cdrex_ratio; |
| unsigned direct_cmd_msr[MEM_TIMINGS_MSR_COUNT]; |
| |
| unsigned timing_ref; |
| unsigned timing_row; |
| unsigned timing_data; |
| unsigned timing_power; |
| |
| /* DQS, DQ, DEBUG offsets */ |
| unsigned phy0_dqs; |
| unsigned phy1_dqs; |
| unsigned phy0_dq; |
| unsigned phy1_dq; |
| unsigned phy0_tFS; |
| unsigned phy1_tFS; |
| unsigned phy0_pulld_dqs; |
| unsigned phy1_pulld_dqs; |
| |
| unsigned lpddr3_ctrl_phy_reset; |
| unsigned ctrl_start_point; |
| unsigned ctrl_inc; |
| unsigned ctrl_start; |
| unsigned ctrl_dll_on; |
| unsigned ctrl_ref; |
| |
| unsigned ctrl_force; |
| unsigned ctrl_rdlat; |
| unsigned ctrl_bstlen; |
| |
| unsigned fp_resync; |
| unsigned iv_size; |
| unsigned dfi_init_start; |
| unsigned aref_en; |
| |
| unsigned rd_fetch; |
| |
| unsigned zq_mode_dds; |
| unsigned zq_mode_term; |
| unsigned zq_mode_noterm; /* 1 to allow termination disable */ |
| |
| unsigned memcontrol; |
| unsigned memconfig; |
| |
| unsigned membaseconfig0; |
| unsigned membaseconfig1; |
| unsigned prechconfig_tp_cnt; |
| unsigned dpwrdn_cyc; |
| unsigned dsref_cyc; |
| unsigned concontrol; |
| /* Channel and Chip Selection */ |
| uint8_t dmc_channels; /* number of memory channels */ |
| uint8_t chips_per_channel; /* number of chips per channel */ |
| uint8_t chips_to_configure; /* number of chips to configure */ |
| uint8_t send_zq_init; /* 1 to send this command */ |
| unsigned impedance; /* drive strength impedeance */ |
| uint8_t gate_leveling_enable; /* check gate leveling is enabled */ |
| }; |
| |
| /** |
| * Get the correct memory timings for our selected memory type and speed. |
| * |
| * This function can be called from SPL or the main U-Boot. |
| * |
| * @return pointer to the memory timings that we should use |
| */ |
| struct mem_timings *clock_get_mem_timings(void); |
| |
| /* |
| * Initialize clock for the device |
| */ |
| void system_clock_init(void); |
| #endif |
