mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-31 14:28:52 +09:00
![Sricharan](/assets/img/avatar_default.png)
Adding the correct configurations required for dplls, clocks, for omap5 Soc. Also changes are done to retain some part of the code common for OMAP4/5 and move only the remaining to the Soc specific directories. Signed-off-by: sricharan <r.sricharan@ti.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
121 lines
3.5 KiB
C
121 lines
3.5 KiB
C
/*
|
|
* (C) Copyright 2010
|
|
* Texas Instruments, <www.ti.com>
|
|
*
|
|
* 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 _SYS_PROTO_H_
|
|
#define _SYS_PROTO_H_
|
|
|
|
#include <asm/arch/omap.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/clocks.h>
|
|
#include <asm/omap_common.h>
|
|
#include <asm/arch/mux_omap5.h>
|
|
#include <asm/arch/clocks.h>
|
|
|
|
struct omap_sysinfo {
|
|
char *board_string;
|
|
};
|
|
extern const struct omap_sysinfo sysinfo;
|
|
|
|
void gpmc_init(void);
|
|
void watchdog_init(void);
|
|
u32 get_device_type(void);
|
|
void do_set_mux(u32 base, struct pad_conf_entry const *array, int size);
|
|
void set_muxconf_regs_essential(void);
|
|
void set_muxconf_regs_non_essential(void);
|
|
void sr32(void *, u32, u32, u32);
|
|
u32 wait_on_value(u32, u32, void *, u32);
|
|
void sdelay(unsigned long);
|
|
void omap_rev_string(char *omap_rev_string);
|
|
void setup_clocks_for_console(void);
|
|
void prcm_init(void);
|
|
void bypass_dpll(u32 *const base);
|
|
void freq_update_core(void);
|
|
u32 get_sys_clk_freq(void);
|
|
u32 omap5_ddr_clk(void);
|
|
void cancel_out(u32 *num, u32 *den, u32 den_limit);
|
|
void sdram_init(void);
|
|
u32 omap_sdram_size(void);
|
|
u32 cortex_rev(void);
|
|
void init_omap_revision(void);
|
|
void do_io_settings(void);
|
|
|
|
/*
|
|
* This is used to verify if the configuration header
|
|
* was executed by Romcode prior to control of transfer
|
|
* to the bootloader. SPL is responsible for saving and
|
|
* passing this to the u-boot.
|
|
*/
|
|
extern struct omap_boot_parameters boot_params;
|
|
|
|
static inline u32 running_from_sdram(void)
|
|
{
|
|
u32 pc;
|
|
asm volatile ("mov %0, pc" : "=r" (pc));
|
|
return ((pc >= OMAP54XX_DRAM_ADDR_SPACE_START) &&
|
|
(pc < OMAP54XX_DRAM_ADDR_SPACE_END));
|
|
}
|
|
|
|
static inline u8 uboot_loaded_by_spl(void)
|
|
{
|
|
/*
|
|
* Configuration Header is not supported yet, so u-boot init running
|
|
* from SDRAM implies that it was loaded by SPL. When this situation
|
|
* changes one of these approaches could be taken:
|
|
* i. Pass a magic from SPL to U-Boot and U-Boot save it at a known
|
|
* location.
|
|
* ii. Check the OPP. CH can support only 50% OPP while SPL initializes
|
|
* the DPLLs at 100% OPP.
|
|
*/
|
|
return running_from_sdram();
|
|
}
|
|
/*
|
|
* The basic hardware init of OMAP(s_init()) can happen in 4
|
|
* different contexts:
|
|
* 1. SPL running from SRAM
|
|
* 2. U-Boot running from FLASH
|
|
* 3. Non-XIP U-Boot loaded to SDRAM by SPL
|
|
* 4. Non-XIP U-Boot loaded to SDRAM by ROM code using the
|
|
* Configuration Header feature
|
|
*
|
|
* This function finds this context.
|
|
* Defining as inline may help in compiling out unused functions in SPL
|
|
*/
|
|
static inline u32 omap_hw_init_context(void)
|
|
{
|
|
#ifdef CONFIG_SPL_BUILD
|
|
return OMAP_INIT_CONTEXT_SPL;
|
|
#else
|
|
if (uboot_loaded_by_spl())
|
|
return OMAP_INIT_CONTEXT_UBOOT_AFTER_SPL;
|
|
else if (running_from_sdram())
|
|
return OMAP_INIT_CONTEXT_UBOOT_AFTER_CH;
|
|
else
|
|
return OMAP_INIT_CONTEXT_UBOOT_FROM_NOR;
|
|
#endif
|
|
}
|
|
|
|
static inline u32 omap_revision(void)
|
|
{
|
|
extern u32 *const omap5_revision;
|
|
return *omap5_revision;
|
|
}
|
|
|
|
#endif
|