mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-12 16:07:30 +00:00
6995a28937
This patch updates secure_emif_sdram_config with the same value written to sdram_config during ddr3 initialization. During suspend/resume, this value is copied into sdram_config. With this, a write to sdram_config at the end of resume sequence which triggers an init sequence can be avoided. Without this register write in place, the DDR_RESET line goes low for a few cycles during resume which is a violation of the JEDEC spec. Signed-off-by: Satyanarayana, Sandhya <sandhya.satyanarayana@ti.com>
63 lines
1.8 KiB
C
63 lines
1.8 KiB
C
/*
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* sys_proto.h
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*
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* System information header
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*
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* Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
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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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#ifndef _SYS_PROTO_H_
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#define _SYS_PROTO_H_
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/*
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* AM335x parts define a system EEPROM that defines certain sub-fields.
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* We use these fields to in turn see what board we are on, and what
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* that might require us to set or not set.
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*/
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#define HDR_NO_OF_MAC_ADDR 3
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#define HDR_ETH_ALEN 6
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#define HDR_NAME_LEN 8
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struct am335x_baseboard_id {
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unsigned int magic;
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char name[HDR_NAME_LEN];
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char version[4];
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char serial[12];
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char config[32];
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char mac_addr[HDR_NO_OF_MAC_ADDR][HDR_ETH_ALEN];
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};
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#define BOARD_REV_ID 0x0
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u32 get_cpu_rev(void);
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u32 get_sysboot_value(void);
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#ifdef CONFIG_DISPLAY_CPUINFO
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int print_cpuinfo(void);
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#endif
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extern struct ctrl_stat *cstat;
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u32 get_device_type(void);
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void setup_clocks_for_console(void);
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void ddr_pll_config(unsigned int ddrpll_M);
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/*
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* We have three pin mux functions that must exist. We must be able to enable
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* uart0, for initial output and i2c0 to read the main EEPROM. We then have a
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* main pinmux function that can be overridden to enable all other pinmux that
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* is required on the board.
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*/
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void enable_uart0_pin_mux(void);
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void enable_i2c0_pin_mux(void);
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void enable_board_pin_mux(struct am335x_baseboard_id *header);
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#endif
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