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+/**
+ * @file
+ * @brief Global defintions for the ARM S3C2410 based a9m2410 CPU card
+ */
+/* 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 __CONFIG_H
+#define __CONFIG_H
+
+/**
+ * The external clock reference is a 12.0MHz crystal
+ */
+#define S3C24XX_CLOCK_REFERENCE 12000000
+
+/**
+ * Define the main clock configuration to be used in register CLKDIVN
+ *
+ * We must limit the frequency of the connected SDRAMs with the clock ratio
+ * setup to 1:2:4. This will result into FCLK:HCLK:PCLK = 200Mhz:100MHz:50MHz
+ */
+#define BOARD_SPECIFIC_CLKDIVN 0x003
+
+/**
+ * Define the MPLL configuration to be used in register MPLLCON
+ *
+ * We want the MPLL to run at 202.80MHz
+ */
+#define BOARD_SPECIFIC_MPLL ((0xA1 << 12) + (3 << 4) + 1)
+
+/**
+ * Define the UPLL configuration to be used in register UPLLCON
+ *
+ * We want the UPLL to run at 48.0MHz
+ */
+#define BOARD_SPECIFIC_UPLL ((0x78 << 12) + (2 << 4) + 3)
+
+/*
+ * SDRAM configuration for Samsung K4M563233E
+ * - 2M x 32Bit x 4 Banks Mobile SDRAM
+ * - 90 pin FBGA
+ * - CL2@100MHz
+ */
+/*
+ * SDRAM uses 32bit width
+ */
+#define BOARD_SPECIFIC_BWSCON ((0x02 << 24) + (0x02 << 28))
+/*
+ * 32MiB SDRAM in bank6
+ * - MT = 11 (= sync dram type)
+ * - Trcd = 00 (= CL2)
+ * - SCAN = 01 (= 9 bit collumns)
+ */
+#define BOARD_SPECIFIC_BANKCON6 ((0x3 << 15) + (0x0 << 2) + 0x1)
+/*
+ * No memory in bank7
+ */
+#define BOARD_SPECIFIC_BANKCON7 ((0x3 << 15) + (0x0 << 2) + 0x1)
+/*
+ * SDRAM refresh settings
+ * - REFEN = 1 (= refresh enabled)
+ * - TREFMD = 0 (= auto refresh)
+ * - Trp = 00 (= 2 RAS precharge clocks)
+ * - Tsrc = 01 (= 5 clocks -> row cycle time @100MHz 2+5=7 -> 70ns)
+ * - Refrsh = 2^11 + 1 - 100 * 15.6 = 2049 - 1560 = 489
+ */
+#define BOARD_SPECIFIC_REFRESH ((0x1 << 23) + (0x0 << 22) + (0x0 << 20) + (0x1 << 18) + 489)
+/*
+ * SDRAM banksize
+ * - BURST_EN = 1 (= burst mode enabled)
+ * - SCKE_EN = 1 (= SDRAM SCKE enabled)
+ * - SCLK_EN = 1 (= clock active only during accesses)
+ * - BK67MAP = 000 (= 32MiB)
+ */
+#define BOARD_SPECIFIC_BANKSIZE ((1 << 7) + (1 << 5) + (0 << 4) + 0)
+/*
+ * SDRAM mode register bank6
+ * CL = 010 (= 2 clocks)
+ */
+#define BOARD_SPECIFIC_MRSRB6 (0x2 << 4)
+/*
+ * SDRAM mode register bank7
+ * CL = 010 (= 2 clocks)
+ */
+#define BOARD_SPECIFIC_MRSRB7 (0x2 << 4)
+
+/*
+ * Flash access timings
+ * Tacls = 0ns (but 20ns data setup time)
+ * Twrph0 = 25ns (write) 35ns (read)
+ * Twrph1 = 10ns (10ns data hold time)
+ * Read cycle time = 50ns
+ *
+ * Assumed HCLK is 100MHz
+ * Tacls = 1 (-> 20ns)
+ * Twrph0 = 3 (-> 40ns)
+ * Twrph1 = 1 (-> 20ns)
+ * Cycle time = 80ns
+ */
+#define A9M2410_TACLS 1
+#define A9M2410_TWRPH0 3
+#define A9M2410_TWRPH1 1
+
+/* needed in the generic NAND boot code only */
+#ifdef CONFIG_S3C24XX_NAND_BOOT
+# define BOARD_DEFAULT_NAND_TIMING CALC_NFCONF_TIMING(A9M2410_TACLS, A9M2410_TWRPH0, A9M2410_TWRPH1)
+#endif
+
+#endif /* __CONFIG_H */