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5e9cd44ca0
USB clocks will be required for fastboot, tftp related functionalities. Move these clocks to essential group inorder to have the functionality working when non-essential clocks are not enabled. Signed-off-by: R Sricharan <r.sricharan@ti.com>
518 lines
15 KiB
C
518 lines
15 KiB
C
/*
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*
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* Clock initialization for OMAP4
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*
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* (C) Copyright 2010
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* Texas Instruments, <www.ti.com>
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*
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* Aneesh V <aneesh@ti.com>
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*
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* Based on previous work by:
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* Santosh Shilimkar <santosh.shilimkar@ti.com>
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* Rajendra Nayak <rnayak@ti.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <asm/omap_common.h>
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#include <asm/gpio.h>
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#include <asm/arch/clocks.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/utils.h>
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#include <asm/omap_gpio.h>
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#ifndef CONFIG_SPL_BUILD
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/*
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* printing to console doesn't work unless
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* this code is executed from SPL
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*/
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#define printf(fmt, args...)
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#define puts(s)
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#endif
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struct omap4_prcm_regs *const prcm = (struct omap4_prcm_regs *)0x4A004100;
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const u32 sys_clk_array[8] = {
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12000000, /* 12 MHz */
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13000000, /* 13 MHz */
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16800000, /* 16.8 MHz */
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19200000, /* 19.2 MHz */
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26000000, /* 26 MHz */
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27000000, /* 27 MHz */
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38400000, /* 38.4 MHz */
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};
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/*
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* The M & N values in the following tables are created using the
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* following tool:
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* tools/omap/clocks_get_m_n.c
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* Please use this tool for creating the table for any new frequency.
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*/
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/* dpll locked at 1400 MHz MPU clk at 700 MHz(OPP100) - DCC OFF */
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static const struct dpll_params mpu_dpll_params_1400mhz[NUM_SYS_CLKS] = {
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{175, 2, 1, -1, -1, -1, -1, -1}, /* 12 MHz */
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{700, 12, 1, -1, -1, -1, -1, -1}, /* 13 MHz */
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{125, 2, 1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
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{401, 10, 1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
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{350, 12, 1, -1, -1, -1, -1, -1}, /* 26 MHz */
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{700, 26, 1, -1, -1, -1, -1, -1}, /* 27 MHz */
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{638, 34, 1, -1, -1, -1, -1, -1} /* 38.4 MHz */
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};
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/* dpll locked at 1584 MHz - MPU clk at 792 MHz(OPP Turbo 4430) */
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static const struct dpll_params mpu_dpll_params_1600mhz[NUM_SYS_CLKS] = {
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{200, 2, 1, -1, -1, -1, -1, -1}, /* 12 MHz */
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{800, 12, 1, -1, -1, -1, -1, -1}, /* 13 MHz */
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{619, 12, 1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
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{125, 2, 1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
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{400, 12, 1, -1, -1, -1, -1, -1}, /* 26 MHz */
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{800, 26, 1, -1, -1, -1, -1, -1}, /* 27 MHz */
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{125, 5, 1, -1, -1, -1, -1, -1} /* 38.4 MHz */
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};
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/* dpll locked at 1200 MHz - MPU clk at 600 MHz */
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static const struct dpll_params mpu_dpll_params_1200mhz[NUM_SYS_CLKS] = {
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{50, 0, 1, -1, -1, -1, -1, -1}, /* 12 MHz */
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{600, 12, 1, -1, -1, -1, -1, -1}, /* 13 MHz */
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{250, 6, 1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
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{125, 3, 1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
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{300, 12, 1, -1, -1, -1, -1, -1}, /* 26 MHz */
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{200, 8, 1, -1, -1, -1, -1, -1}, /* 27 MHz */
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{125, 7, 1, -1, -1, -1, -1, -1} /* 38.4 MHz */
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};
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static const struct dpll_params core_dpll_params_1600mhz[NUM_SYS_CLKS] = {
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{200, 2, 1, 5, 8, 4, 6, 5}, /* 12 MHz */
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{800, 12, 1, 5, 8, 4, 6, 5}, /* 13 MHz */
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{619, 12, 1, 5, 8, 4, 6, 5}, /* 16.8 MHz */
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{125, 2, 1, 5, 8, 4, 6, 5}, /* 19.2 MHz */
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{400, 12, 1, 5, 8, 4, 6, 5}, /* 26 MHz */
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{800, 26, 1, 5, 8, 4, 6, 5}, /* 27 MHz */
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{125, 5, 1, 5, 8, 4, 6, 5} /* 38.4 MHz */
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};
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static const struct dpll_params core_dpll_params_es1_1524mhz[NUM_SYS_CLKS] = {
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{127, 1, 1, 5, 8, 4, 6, 5}, /* 12 MHz */
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{762, 12, 1, 5, 8, 4, 6, 5}, /* 13 MHz */
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{635, 13, 1, 5, 8, 4, 6, 5}, /* 16.8 MHz */
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{635, 15, 1, 5, 8, 4, 6, 5}, /* 19.2 MHz */
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{381, 12, 1, 5, 8, 4, 6, 5}, /* 26 MHz */
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{254, 8, 1, 5, 8, 4, 6, 5}, /* 27 MHz */
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{496, 24, 1, 5, 8, 4, 6, 5} /* 38.4 MHz */
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};
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static const struct dpll_params
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core_dpll_params_es2_1600mhz_ddr200mhz[NUM_SYS_CLKS] = {
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{200, 2, 2, 5, 8, 4, 6, 5}, /* 12 MHz */
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{800, 12, 2, 5, 8, 4, 6, 5}, /* 13 MHz */
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{619, 12, 2, 5, 8, 4, 6, 5}, /* 16.8 MHz */
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{125, 2, 2, 5, 8, 4, 6, 5}, /* 19.2 MHz */
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{400, 12, 2, 5, 8, 4, 6, 5}, /* 26 MHz */
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{800, 26, 2, 5, 8, 4, 6, 5}, /* 27 MHz */
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{125, 5, 2, 5, 8, 4, 6, 5} /* 38.4 MHz */
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};
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static const struct dpll_params per_dpll_params_1536mhz[NUM_SYS_CLKS] = {
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{64, 0, 8, 6, 12, 9, 4, 5}, /* 12 MHz */
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{768, 12, 8, 6, 12, 9, 4, 5}, /* 13 MHz */
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{320, 6, 8, 6, 12, 9, 4, 5}, /* 16.8 MHz */
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{40, 0, 8, 6, 12, 9, 4, 5}, /* 19.2 MHz */
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{384, 12, 8, 6, 12, 9, 4, 5}, /* 26 MHz */
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{256, 8, 8, 6, 12, 9, 4, 5}, /* 27 MHz */
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{20, 0, 8, 6, 12, 9, 4, 5} /* 38.4 MHz */
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};
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static const struct dpll_params iva_dpll_params_1862mhz[NUM_SYS_CLKS] = {
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{931, 11, -1, -1, 4, 7, -1, -1}, /* 12 MHz */
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{931, 12, -1, -1, 4, 7, -1, -1}, /* 13 MHz */
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{665, 11, -1, -1, 4, 7, -1, -1}, /* 16.8 MHz */
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{727, 14, -1, -1, 4, 7, -1, -1}, /* 19.2 MHz */
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{931, 25, -1, -1, 4, 7, -1, -1}, /* 26 MHz */
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{931, 26, -1, -1, 4, 7, -1, -1}, /* 27 MHz */
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{291, 11, -1, -1, 4, 7, -1, -1} /* 38.4 MHz */
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};
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/* ABE M & N values with sys_clk as source */
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static const struct dpll_params
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abe_dpll_params_sysclk_196608khz[NUM_SYS_CLKS] = {
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{49, 5, 1, 1, -1, -1, -1, -1}, /* 12 MHz */
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{68, 8, 1, 1, -1, -1, -1, -1}, /* 13 MHz */
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{35, 5, 1, 1, -1, -1, -1, -1}, /* 16.8 MHz */
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{46, 8, 1, 1, -1, -1, -1, -1}, /* 19.2 MHz */
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{34, 8, 1, 1, -1, -1, -1, -1}, /* 26 MHz */
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{29, 7, 1, 1, -1, -1, -1, -1}, /* 27 MHz */
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{64, 24, 1, 1, -1, -1, -1, -1} /* 38.4 MHz */
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};
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/* ABE M & N values with 32K clock as source */
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static const struct dpll_params abe_dpll_params_32k_196608khz = {
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750, 0, 1, 1, -1, -1, -1, -1
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};
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static const struct dpll_params usb_dpll_params_1920mhz[NUM_SYS_CLKS] = {
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{80, 0, 2, -1, -1, -1, -1, -1}, /* 12 MHz */
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{960, 12, 2, -1, -1, -1, -1, -1}, /* 13 MHz */
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{400, 6, 2, -1, -1, -1, -1, -1}, /* 16.8 MHz */
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{50, 0, 2, -1, -1, -1, -1, -1}, /* 19.2 MHz */
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{480, 12, 2, -1, -1, -1, -1, -1}, /* 26 MHz */
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{320, 8, 2, -1, -1, -1, -1, -1}, /* 27 MHz */
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{25, 0, 2, -1, -1, -1, -1, -1} /* 38.4 MHz */
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};
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void setup_post_dividers(u32 *const base, const struct dpll_params *params)
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{
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struct dpll_regs *const dpll_regs = (struct dpll_regs *)base;
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/* Setup post-dividers */
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if (params->m2 >= 0)
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writel(params->m2, &dpll_regs->cm_div_m2_dpll);
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if (params->m3 >= 0)
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writel(params->m3, &dpll_regs->cm_div_m3_dpll);
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if (params->m4 >= 0)
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writel(params->m4, &dpll_regs->cm_div_m4_dpll);
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if (params->m5 >= 0)
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writel(params->m5, &dpll_regs->cm_div_m5_dpll);
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if (params->m6 >= 0)
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writel(params->m6, &dpll_regs->cm_div_m6_dpll);
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if (params->m7 >= 0)
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writel(params->m7, &dpll_regs->cm_div_m7_dpll);
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}
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/*
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* Lock MPU dpll
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*
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* Resulting MPU frequencies:
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* 4430 ES1.0 : 600 MHz
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* 4430 ES2.x : 792 MHz (OPP Turbo)
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* 4460 : 920 MHz (OPP Turbo) - DCC disabled
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*/
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const struct dpll_params *get_mpu_dpll_params(void)
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{
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u32 omap_rev, sysclk_ind;
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omap_rev = omap_revision();
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sysclk_ind = get_sys_clk_index();
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if (omap_rev == OMAP4430_ES1_0)
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return &mpu_dpll_params_1200mhz[sysclk_ind];
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else if (omap_rev < OMAP4460_ES1_0)
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return &mpu_dpll_params_1600mhz[sysclk_ind];
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else
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return &mpu_dpll_params_1400mhz[sysclk_ind];
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}
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const struct dpll_params *get_core_dpll_params(void)
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{
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u32 sysclk_ind = get_sys_clk_index();
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switch (omap_revision()) {
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case OMAP4430_ES1_0:
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return &core_dpll_params_es1_1524mhz[sysclk_ind];
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case OMAP4430_ES2_0:
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case OMAP4430_SILICON_ID_INVALID:
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/* safest */
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return &core_dpll_params_es2_1600mhz_ddr200mhz[sysclk_ind];
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default:
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return &core_dpll_params_1600mhz[sysclk_ind];
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}
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}
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const struct dpll_params *get_per_dpll_params(void)
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{
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u32 sysclk_ind = get_sys_clk_index();
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return &per_dpll_params_1536mhz[sysclk_ind];
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}
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const struct dpll_params *get_iva_dpll_params(void)
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{
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u32 sysclk_ind = get_sys_clk_index();
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return &iva_dpll_params_1862mhz[sysclk_ind];
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}
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const struct dpll_params *get_usb_dpll_params(void)
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{
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u32 sysclk_ind = get_sys_clk_index();
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return &usb_dpll_params_1920mhz[sysclk_ind];
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}
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const struct dpll_params *get_abe_dpll_params(void)
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{
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#ifdef CONFIG_SYS_OMAP_ABE_SYSCK
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u32 sysclk_ind = get_sys_clk_index();
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return &abe_dpll_params_sysclk_196608khz[sysclk_ind];
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#else
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return &abe_dpll_params_32k_196608khz;
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#endif
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}
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/*
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* Setup the voltages for vdd_mpu, vdd_core, and vdd_iva
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* We set the maximum voltages allowed here because Smart-Reflex is not
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* enabled in bootloader. Voltage initialization in the kernel will set
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* these to the nominal values after enabling Smart-Reflex
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*/
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void scale_vcores(void)
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{
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u32 volt, omap_rev;
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omap_vc_init(PRM_VC_I2C_CHANNEL_FREQ_KHZ);
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omap_rev = omap_revision();
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/*
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* Scale Voltage rails:
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* 1. VDD_CORE
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* 3. VDD_MPU
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* 3. VDD_IVA
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*/
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if (omap_rev < OMAP4460_ES1_0) {
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/*
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* OMAP4430:
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* VDD_CORE = TWL6030 VCORE3
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* VDD_MPU = TWL6030 VCORE1
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* VDD_IVA = TWL6030 VCORE2
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*/
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volt = 1200;
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do_scale_vcore(SMPS_REG_ADDR_VCORE3, volt);
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/*
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* note on VDD_MPU:
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* Setting a high voltage for Nitro mode as smart reflex is not
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* enabled. We use the maximum possible value in the AVS range
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* because the next higher voltage in the discrete range
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* (code >= 0b111010) is way too high.
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*/
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volt = 1325;
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do_scale_vcore(SMPS_REG_ADDR_VCORE1, volt);
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volt = 1200;
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do_scale_vcore(SMPS_REG_ADDR_VCORE2, volt);
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} else {
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/*
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* OMAP4460:
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* VDD_CORE = TWL6030 VCORE1
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* VDD_MPU = TPS62361
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* VDD_IVA = TWL6030 VCORE2
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*/
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volt = 1200;
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do_scale_vcore(SMPS_REG_ADDR_VCORE1, volt);
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/* TPS62361 */
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volt = 1203;
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do_scale_tps62361(TPS62361_VSEL0_GPIO,
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TPS62361_REG_ADDR_SET1, volt);
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/* VCORE 2 - supplies vdd_iva */
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volt = 1200;
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do_scale_vcore(SMPS_REG_ADDR_VCORE2, volt);
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}
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}
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u32 get_offset_code(u32 offset)
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{
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u32 offset_code, step = 12660; /* 12.66 mV represented in uV */
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if (omap_revision() == OMAP4430_ES1_0)
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offset -= PHOENIX_SMPS_BASE_VOLT_STD_MODE_UV;
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else
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offset -= PHOENIX_SMPS_BASE_VOLT_STD_MODE_WITH_OFFSET_UV;
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offset_code = (offset + step - 1) / step;
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/* The code starts at 1 not 0 */
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return ++offset_code;
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}
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/*
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* Enable essential clock domains, modules and
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* do some additional special settings needed
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*/
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void enable_basic_clocks(void)
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{
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u32 *const clk_domains_essential[] = {
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&prcm->cm_l4per_clkstctrl,
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&prcm->cm_l3init_clkstctrl,
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&prcm->cm_memif_clkstctrl,
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&prcm->cm_l4cfg_clkstctrl,
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0
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};
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u32 *const clk_modules_hw_auto_essential[] = {
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&prcm->cm_l3_2_gpmc_clkctrl,
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&prcm->cm_memif_emif_1_clkctrl,
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&prcm->cm_memif_emif_2_clkctrl,
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&prcm->cm_l4cfg_l4_cfg_clkctrl,
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&prcm->cm_wkup_gpio1_clkctrl,
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&prcm->cm_l4per_gpio2_clkctrl,
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&prcm->cm_l4per_gpio3_clkctrl,
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&prcm->cm_l4per_gpio4_clkctrl,
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&prcm->cm_l4per_gpio5_clkctrl,
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&prcm->cm_l4per_gpio6_clkctrl,
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0
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};
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u32 *const clk_modules_explicit_en_essential[] = {
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&prcm->cm_wkup_gptimer1_clkctrl,
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&prcm->cm_l3init_hsmmc1_clkctrl,
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&prcm->cm_l3init_hsmmc2_clkctrl,
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&prcm->cm_l4per_gptimer2_clkctrl,
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&prcm->cm_wkup_wdtimer2_clkctrl,
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&prcm->cm_l4per_uart3_clkctrl,
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0
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};
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/* Enable optional additional functional clock for GPIO4 */
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setbits_le32(&prcm->cm_l4per_gpio4_clkctrl,
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GPIO4_CLKCTRL_OPTFCLKEN_MASK);
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/* Enable 96 MHz clock for MMC1 & MMC2 */
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setbits_le32(&prcm->cm_l3init_hsmmc1_clkctrl,
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HSMMC_CLKCTRL_CLKSEL_MASK);
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setbits_le32(&prcm->cm_l3init_hsmmc2_clkctrl,
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HSMMC_CLKCTRL_CLKSEL_MASK);
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/* Select 32KHz clock as the source of GPTIMER1 */
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setbits_le32(&prcm->cm_wkup_gptimer1_clkctrl,
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GPTIMER1_CLKCTRL_CLKSEL_MASK);
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/* Enable optional 48M functional clock for USB PHY */
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setbits_le32(&prcm->cm_l3init_usbphy_clkctrl,
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USBPHY_CLKCTRL_OPTFCLKEN_PHY_48M_MASK);
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do_enable_clocks(clk_domains_essential,
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clk_modules_hw_auto_essential,
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clk_modules_explicit_en_essential,
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1);
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}
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void enable_basic_uboot_clocks(void)
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{
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u32 *const clk_domains_essential[] = {
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|
0
|
|
};
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|
|
|
u32 *const clk_modules_hw_auto_essential[] = {
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&prcm->cm_l3init_hsusbotg_clkctrl,
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&prcm->cm_l3init_usbphy_clkctrl,
|
|
&prcm->cm_l3init_usbphy_clkctrl,
|
|
&prcm->cm_clksel_usb_60mhz,
|
|
&prcm->cm_l3init_hsusbtll_clkctrl,
|
|
0
|
|
};
|
|
|
|
u32 *const clk_modules_explicit_en_essential[] = {
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|
&prcm->cm_l4per_mcspi1_clkctrl,
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|
&prcm->cm_l4per_i2c1_clkctrl,
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|
&prcm->cm_l4per_i2c2_clkctrl,
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|
&prcm->cm_l4per_i2c3_clkctrl,
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|
&prcm->cm_l4per_i2c4_clkctrl,
|
|
&prcm->cm_l3init_hsusbhost_clkctrl,
|
|
0
|
|
};
|
|
|
|
do_enable_clocks(clk_domains_essential,
|
|
clk_modules_hw_auto_essential,
|
|
clk_modules_explicit_en_essential,
|
|
1);
|
|
}
|
|
|
|
/*
|
|
* Enable non-essential clock domains, modules and
|
|
* do some additional special settings needed
|
|
*/
|
|
void enable_non_essential_clocks(void)
|
|
{
|
|
u32 *const clk_domains_non_essential[] = {
|
|
&prcm->cm_mpu_m3_clkstctrl,
|
|
&prcm->cm_ivahd_clkstctrl,
|
|
&prcm->cm_dsp_clkstctrl,
|
|
&prcm->cm_dss_clkstctrl,
|
|
&prcm->cm_sgx_clkstctrl,
|
|
&prcm->cm1_abe_clkstctrl,
|
|
&prcm->cm_c2c_clkstctrl,
|
|
&prcm->cm_cam_clkstctrl,
|
|
&prcm->cm_dss_clkstctrl,
|
|
&prcm->cm_sdma_clkstctrl,
|
|
0
|
|
};
|
|
|
|
u32 *const clk_modules_hw_auto_non_essential[] = {
|
|
&prcm->cm_l3instr_l3_3_clkctrl,
|
|
&prcm->cm_l3instr_l3_instr_clkctrl,
|
|
&prcm->cm_l3instr_intrconn_wp1_clkctrl,
|
|
&prcm->cm_l3init_hsi_clkctrl,
|
|
0
|
|
};
|
|
|
|
u32 *const clk_modules_explicit_en_non_essential[] = {
|
|
&prcm->cm1_abe_aess_clkctrl,
|
|
&prcm->cm1_abe_pdm_clkctrl,
|
|
&prcm->cm1_abe_dmic_clkctrl,
|
|
&prcm->cm1_abe_mcasp_clkctrl,
|
|
&prcm->cm1_abe_mcbsp1_clkctrl,
|
|
&prcm->cm1_abe_mcbsp2_clkctrl,
|
|
&prcm->cm1_abe_mcbsp3_clkctrl,
|
|
&prcm->cm1_abe_slimbus_clkctrl,
|
|
&prcm->cm1_abe_timer5_clkctrl,
|
|
&prcm->cm1_abe_timer6_clkctrl,
|
|
&prcm->cm1_abe_timer7_clkctrl,
|
|
&prcm->cm1_abe_timer8_clkctrl,
|
|
&prcm->cm1_abe_wdt3_clkctrl,
|
|
&prcm->cm_l4per_gptimer9_clkctrl,
|
|
&prcm->cm_l4per_gptimer10_clkctrl,
|
|
&prcm->cm_l4per_gptimer11_clkctrl,
|
|
&prcm->cm_l4per_gptimer3_clkctrl,
|
|
&prcm->cm_l4per_gptimer4_clkctrl,
|
|
&prcm->cm_l4per_hdq1w_clkctrl,
|
|
&prcm->cm_l4per_mcbsp4_clkctrl,
|
|
&prcm->cm_l4per_mcspi2_clkctrl,
|
|
&prcm->cm_l4per_mcspi3_clkctrl,
|
|
&prcm->cm_l4per_mcspi4_clkctrl,
|
|
&prcm->cm_l4per_mmcsd3_clkctrl,
|
|
&prcm->cm_l4per_mmcsd4_clkctrl,
|
|
&prcm->cm_l4per_mmcsd5_clkctrl,
|
|
&prcm->cm_l4per_uart1_clkctrl,
|
|
&prcm->cm_l4per_uart2_clkctrl,
|
|
&prcm->cm_l4per_uart4_clkctrl,
|
|
&prcm->cm_wkup_keyboard_clkctrl,
|
|
&prcm->cm_wkup_wdtimer2_clkctrl,
|
|
&prcm->cm_cam_iss_clkctrl,
|
|
&prcm->cm_cam_fdif_clkctrl,
|
|
&prcm->cm_dss_dss_clkctrl,
|
|
&prcm->cm_sgx_sgx_clkctrl,
|
|
0
|
|
};
|
|
|
|
/* Enable optional functional clock for ISS */
|
|
setbits_le32(&prcm->cm_cam_iss_clkctrl, ISS_CLKCTRL_OPTFCLKEN_MASK);
|
|
|
|
/* Enable all optional functional clocks of DSS */
|
|
setbits_le32(&prcm->cm_dss_dss_clkctrl, DSS_CLKCTRL_OPTFCLKEN_MASK);
|
|
|
|
do_enable_clocks(clk_domains_non_essential,
|
|
clk_modules_hw_auto_non_essential,
|
|
clk_modules_explicit_en_non_essential,
|
|
0);
|
|
|
|
/* Put camera module in no sleep mode */
|
|
clrsetbits_le32(&prcm->cm_cam_clkstctrl, MODULE_CLKCTRL_MODULEMODE_MASK,
|
|
CD_CLKCTRL_CLKTRCTRL_NO_SLEEP <<
|
|
MODULE_CLKCTRL_MODULEMODE_SHIFT);
|
|
}
|