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authorWolfgang Denk <wd@denx.de>2009-02-01 21:38:07 +0100
committerWolfgang Denk <wd@denx.de>2009-02-01 21:38:07 +0100
commit6c6e042ab3bbfb5428e4cdeb38fa27728c63afdd (patch)
tree0458ea450c3674b3d7aba64157e346f1d2553278 /board/samsung/smdk2410/smdk2410.c
parentee924e00300bd1136589b2d5f8ad1f008df01bd4 (diff)
parent4e69087a1d6ef2eca6f46026cf5e7399b6c9e7c0 (diff)
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Merge branch 'master' of git://git.denx.de/u-boot-arm
Diffstat (limited to 'board/samsung/smdk2410/smdk2410.c')
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1 files changed, 123 insertions, 0 deletions
diff --git a/board/samsung/smdk2410/smdk2410.c b/board/samsung/smdk2410/smdk2410.c
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+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * David Mueller, ELSOFT AG, <d.mueller@elsoft.ch>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * 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.
+ *
+ * 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
+ */
+
+#include <common.h>
+#include <s3c2410.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define FCLK_SPEED 1
+
+#if FCLK_SPEED==0 /* Fout = 203MHz, Fin = 12MHz for Audio */
+#define M_MDIV 0xC3
+#define M_PDIV 0x4
+#define M_SDIV 0x1
+#elif FCLK_SPEED==1 /* Fout = 202.8MHz */
+#define M_MDIV 0xA1
+#define M_PDIV 0x3
+#define M_SDIV 0x1
+#endif
+
+#define USB_CLOCK 1
+
+#if USB_CLOCK==0
+#define U_M_MDIV 0xA1
+#define U_M_PDIV 0x3
+#define U_M_SDIV 0x1
+#elif USB_CLOCK==1
+#define U_M_MDIV 0x48
+#define U_M_PDIV 0x3
+#define U_M_SDIV 0x2
+#endif
+
+static inline void delay (unsigned long loops)
+{
+ __asm__ volatile ("1:\n"
+ "subs %0, %1, #1\n"
+ "bne 1b":"=r" (loops):"0" (loops));
+}
+
+/*
+ * Miscellaneous platform dependent initialisations
+ */
+
+int board_init (void)
+{
+ S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER();
+ S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
+
+ /* to reduce PLL lock time, adjust the LOCKTIME register */
+ clk_power->LOCKTIME = 0xFFFFFF;
+
+ /* configure MPLL */
+ clk_power->MPLLCON = ((M_MDIV << 12) + (M_PDIV << 4) + M_SDIV);
+
+ /* some delay between MPLL and UPLL */
+ delay (4000);
+
+ /* configure UPLL */
+ clk_power->UPLLCON = ((U_M_MDIV << 12) + (U_M_PDIV << 4) + U_M_SDIV);
+
+ /* some delay between MPLL and UPLL */
+ delay (8000);
+
+ /* set up the I/O ports */
+ gpio->GPACON = 0x007FFFFF;
+ gpio->GPBCON = 0x00044555;
+ gpio->GPBUP = 0x000007FF;
+ gpio->GPCCON = 0xAAAAAAAA;
+ gpio->GPCUP = 0x0000FFFF;
+ gpio->GPDCON = 0xAAAAAAAA;
+ gpio->GPDUP = 0x0000FFFF;
+ gpio->GPECON = 0xAAAAAAAA;
+ gpio->GPEUP = 0x0000FFFF;
+ gpio->GPFCON = 0x000055AA;
+ gpio->GPFUP = 0x000000FF;
+ gpio->GPGCON = 0xFF95FFBA;
+ gpio->GPGUP = 0x0000FFFF;
+ gpio->GPHCON = 0x002AFAAA;
+ gpio->GPHUP = 0x000007FF;
+
+ /* arch number of SMDK2410-Board */
+ gd->bd->bi_arch_number = MACH_TYPE_SMDK2410;
+
+ /* adress of boot parameters */
+ gd->bd->bi_boot_params = 0x30000100;
+
+ icache_enable();
+ dcache_enable();
+
+ return 0;
+}
+
+int dram_init (void)
+{
+ gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+ gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
+
+ return 0;
+}