diff options
Diffstat (limited to 'src/cpu/samsung/exynos5250/clk.h')
| -rw-r--r-- | src/cpu/samsung/exynos5250/clk.h | 90 |
1 files changed, 40 insertions, 50 deletions
diff --git a/src/cpu/samsung/exynos5250/clk.h b/src/cpu/samsung/exynos5250/clk.h index 24e8e7066c..ba8d960ca4 100644 --- a/src/cpu/samsung/exynos5250/clk.h +++ b/src/cpu/samsung/exynos5250/clk.h @@ -1,11 +1,12 @@ /* - * (C) Copyright 2012 Samsung Electronics - * Minkyu Kang <mk7.kang@samsung.com> + * This file is part of the coreboot 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. + * Copyright 2013 Google Inc. + * Copyright (C) 2012 Samsung Electronics + * + * 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; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of @@ -14,15 +15,12 @@ * * 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 - * + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ -#ifndef __EXYNOS5_CLK_H__ -#define __EXYNOS5_CLK_H__ +#ifndef CPU_SAMSUNG_EXYNOS5250_CLK_H +#define CPU_SAMSUNG_EXYNOS5250_CLK_H -#include <types.h> #include <stdint.h> enum periph_id; @@ -66,7 +64,7 @@ void set_mmc_clk(int dev_index, unsigned int div); */ unsigned long clock_get_periph_rate(enum periph_id peripheral); -#include <cpu/samsung/exynos5250/pinmux.h> +#include "pinmux.h" #define MCT_ADDRESS 0x101c0000 @@ -107,8 +105,6 @@ void clock_select_i2s_clk_source(void); */ int clock_set_i2s_clk_prescaler(unsigned int src_frq, unsigned int dst_frq); -/* FIXME(dhendrix): below is stuff from arch/arm/include/asm/arch-exynos5/clock.h - (as opposed to the two clk.h files as they were named in u-boot... */ struct exynos5_clock { unsigned int apll_lock; /* base + 0 */ unsigned char res1[0xfc]; @@ -585,50 +581,44 @@ void clock_ll_set_ratio(enum periph_id periph_id, unsigned divisor); */ int clock_set_rate(enum periph_id periph_id, unsigned int rate); -/** - * Decode a peripheral ID from a device node. - * - * Drivers should always use this function since the actual means of - * encoding this information may change in the future as fdt support for - * exynos evolves. - * - * @param blob FDT blob to read from - * @param node Node containing the information - */ -int clock_decode_periph_id(const void *blob, int node); - /* Clock gate unused IP */ void clock_gate(void); -enum ddr_mode; -enum mem_manuf; +void mct_start(void); +uint64_t mct_raw_value(void); -const char *clock_get_mem_type_name(enum ddr_mode mem_type); +#include "dmc.h" -const char *clock_get_mem_manuf_name(enum mem_manuf mem_manuf); +/* These are the ratio's for configuring ARM clock */ +struct arm_clk_ratios { + unsigned int arm_freq_mhz; /* Frequency of ARM core in MHz */ + + unsigned int apll_mdiv; + unsigned int apll_pdiv; + unsigned int apll_sdiv; + + unsigned int arm2_ratio; + unsigned int apll_ratio; + unsigned int pclk_dbg_ratio; + unsigned int atb_ratio; + unsigned int periph_ratio; + unsigned int acp_ratio; + unsigned int cpud_ratio; + unsigned int arm_ratio; +}; -/* - * TODO(sjg@chromium.org): Remove this when we have more SPL space. - * At present we are using 14148 of 14336 bytes. If we change this function - * to be exported in SPL, we go over the edge. - */ /** - * Get the required memory type and speed (Main U-Boot version). - * - * This should use the device tree. For now we cannot since this function is - * called before the FDT is available. + * Get the clock ratios for CPU configuration * - * @param mem_type Returns memory type - * @param frequency_mhz Returns memory speed in MHz - * @param arm_freq Returns ARM clock speed in MHz - * @param mem_manuf Return Memory Manufacturer name - * @return 0 if all ok (if not, this function currently does not return) + * @return pointer to the clock ratios that we should use */ -int clock_get_mem_selection(enum ddr_mode *mem_type, - unsigned *frequency_mhz, unsigned *arm_freq, - enum mem_manuf *mem_manuf); +struct arm_clk_ratios *get_arm_clk_ratios(void); -void mct_start(void); -uint64_t mct_raw_value(void); +/* + * Initialize clock for the device + */ +struct mem_timings; +void system_clock_init(struct mem_timings *mem, + struct arm_clk_ratios *arm_clk_ratio); #endif |