mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-01 15:53:46 +09:00
ac67804fbb
This patch adds a unified s3c24x0 cpu header file that selects the header file for the specific s3c24x0 cpu from the SOC and CPU configs defined in board config file. This removes the current chain of s3c24-type #ifdef's from the s3c24x0 code. Signed-off-by: Kevin Morfitt <kevin.morfitt@fearnside-systems.co.uk> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
137 lines
3.2 KiB
C
137 lines
3.2 KiB
C
/*
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* (C) Copyright 2002
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* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
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* Marius Groeger <mgroeger@sysgo.de>
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*
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* (C) Copyright 2002
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* David Mueller, ELSOFT AG, <d.mueller@elsoft.ch>
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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 <netdev.h>
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#include <asm/arch/s3c24x0_cpu.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define FCLK_SPEED 1
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#if FCLK_SPEED==0 /* Fout = 203MHz, Fin = 12MHz for Audio */
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#define M_MDIV 0xC3
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#define M_PDIV 0x4
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#define M_SDIV 0x1
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#elif FCLK_SPEED==1 /* Fout = 202.8MHz */
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#define M_MDIV 0xA1
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#define M_PDIV 0x3
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#define M_SDIV 0x1
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#endif
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#define USB_CLOCK 1
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#if USB_CLOCK==0
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#define U_M_MDIV 0xA1
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#define U_M_PDIV 0x3
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#define U_M_SDIV 0x1
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#elif USB_CLOCK==1
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#define U_M_MDIV 0x48
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#define U_M_PDIV 0x3
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#define U_M_SDIV 0x2
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#endif
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static inline void delay (unsigned long loops)
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{
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__asm__ volatile ("1:\n"
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"subs %0, %1, #1\n"
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"bne 1b":"=r" (loops):"0" (loops));
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}
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/*
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* Miscellaneous platform dependent initialisations
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*/
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int board_init (void)
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{
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struct s3c24x0_clock_power * const clk_power =
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s3c24x0_get_base_clock_power();
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struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio();
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/* to reduce PLL lock time, adjust the LOCKTIME register */
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clk_power->LOCKTIME = 0xFFFFFF;
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/* configure MPLL */
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clk_power->MPLLCON = ((M_MDIV << 12) + (M_PDIV << 4) + M_SDIV);
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/* some delay between MPLL and UPLL */
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delay (4000);
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/* configure UPLL */
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clk_power->UPLLCON = ((U_M_MDIV << 12) + (U_M_PDIV << 4) + U_M_SDIV);
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/* some delay between MPLL and UPLL */
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delay (8000);
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/* set up the I/O ports */
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gpio->GPACON = 0x007FFFFF;
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gpio->GPBCON = 0x00044555;
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gpio->GPBUP = 0x000007FF;
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gpio->GPCCON = 0xAAAAAAAA;
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gpio->GPCUP = 0x0000FFFF;
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gpio->GPDCON = 0xAAAAAAAA;
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gpio->GPDUP = 0x0000FFFF;
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gpio->GPECON = 0xAAAAAAAA;
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gpio->GPEUP = 0x0000FFFF;
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gpio->GPFCON = 0x000055AA;
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gpio->GPFUP = 0x000000FF;
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gpio->GPGCON = 0xFF95FFBA;
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gpio->GPGUP = 0x0000FFFF;
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gpio->GPHCON = 0x002AFAAA;
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gpio->GPHUP = 0x000007FF;
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/* arch number of SMDK2410-Board */
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gd->bd->bi_arch_number = MACH_TYPE_SMDK2410;
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/* adress of boot parameters */
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gd->bd->bi_boot_params = 0x30000100;
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icache_enable();
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dcache_enable();
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return 0;
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}
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int dram_init (void)
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{
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gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
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gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
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return 0;
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}
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#ifdef CONFIG_CMD_NET
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int board_eth_init(bd_t *bis)
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{
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int rc = 0;
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#ifdef CONFIG_CS8900
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rc = cs8900_initialize(0, CONFIG_CS8900_BASE);
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#endif
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return rc;
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}
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#endif
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