89 lines
2.2 KiB
C
89 lines
2.2 KiB
C
/*
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* (C) Copyright 2004-2009
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* Texas Instruments, <www.ti.com>
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* Richard Woodruff <r-woodruff2@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
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* version 2 as published by the Free Software Foundation.
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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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*/
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#include <common.h>
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#include <io.h>
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#include <mach/omap4-mux.h>
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#include <mach/omap4-silicon.h>
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#include <mach/omap4-clock.h>
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#include <mach/syslib.h>
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#include <asm/barebox-arm.h>
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#define TPS62361_VSEL0_GPIO 7
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void set_muxconf_regs(void);
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static const struct ddr_regs ddr_regs_400_mhz_2cs = {
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/* tRRD changed from 10ns to 12.5ns because of the tFAW requirement*/
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.tim1 = 0x10eb0662,
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.tim2 = 0x20370dd2,
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.tim3 = 0x00b1c33f,
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.phy_ctrl_1 = 0x849FF408,
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.ref_ctrl = 0x00000618,
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.config_init = 0x80000eb9,
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.config_final = 0x80001ab9,
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.zq_config = 0xD00b3215,
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.mr1 = 0x83,
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.mr2 = 0x4
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};
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static void noinline panda_init_lowlevel(void)
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{
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struct dpll_param core = OMAP4_CORE_DPLL_PARAM_38M4_DDR400;
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struct dpll_param mpu = OMAP4_MPU_DPLL_PARAM_38M4_MPU600;
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struct dpll_param iva = OMAP4_IVA_DPLL_PARAM_38M4;
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struct dpll_param per = OMAP4_PER_DPLL_PARAM_38M4;
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struct dpll_param abe = OMAP4_ABE_DPLL_PARAM_38M4;
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struct dpll_param usb = OMAP4_USB_DPLL_PARAM_38M4;
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writel(CM_SYS_CLKSEL_38M4, CM_SYS_CLKSEL);
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/* Configure all DPLL's at 100% OPP */
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omap4_configure_mpu_dpll(&mpu);
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omap4_configure_iva_dpll(&iva);
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omap4_configure_per_dpll(&per);
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omap4_configure_abe_dpll(&abe);
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omap4_configure_usb_dpll(&usb);
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/* Enable all clocks */
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omap4_enable_all_clocks();
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set_muxconf_regs();
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omap4_ddr_init(&ddr_regs_400_mhz_2cs, &core);
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/* Set VCORE1 = 1.3 V, VCORE2 = VCORE3 = 1.21V */
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omap4_scale_vcores(TPS62361_VSEL0_GPIO);
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board_init_lowlevel_return();
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}
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void board_init_lowlevel(void)
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{
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u32 r;
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if (get_pc() > 0x80000000)
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return;
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r = 0x4030d000;
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__asm__ __volatile__("mov sp, %0" : : "r"(r));
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panda_init_lowlevel();
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}
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