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-rw-r--r--include/asm-blackfin/mach-bf537/mem_init.h330
1 files changed, 330 insertions, 0 deletions
diff --git a/include/asm-blackfin/mach-bf537/mem_init.h b/include/asm-blackfin/mach-bf537/mem_init.h
new file mode 100644
index 0000000..9ad979d
--- /dev/null
+++ b/include/asm-blackfin/mach-bf537/mem_init.h
@@ -0,0 +1,330 @@
+/*
+ * File: include/asm-blackfin/mach-bf537/mem_init.h
+ * Based on:
+ * Author:
+ *
+ * Created:
+ * Description:
+ *
+ * Rev:
+ *
+ * Modified:
+ * Copyright 2004-2006 Analog Devices Inc.
+ *
+ * Bugs: Enter bugs at http://blackfin.uclinux.org/
+ *
+ * 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, 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; see the file COPYING.
+ * If not, write to the Free Software Foundation,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#if (CONFIG_MEM_MT48LC16M16A2TG_75 || CONFIG_MEM_MT48LC64M4A2FB_7E || CONFIG_MEM_MT48LC16M8A2TG_75 || CONFIG_MEM_GENERIC_BOARD || CONFIG_MEM_MT48LC32M8A2_75)
+#if (CONFIG_SCLK_HZ > 119402985)
+#define SDRAM_tRP TRP_2
+#define SDRAM_tRP_num 2
+#define SDRAM_tRAS TRAS_7
+#define SDRAM_tRAS_num 7
+#define SDRAM_tRCD TRCD_2
+#define SDRAM_tWR TWR_2
+#endif
+#if (CONFIG_SCLK_HZ > 104477612) && (CONFIG_SCLK_HZ <= 119402985)
+#define SDRAM_tRP TRP_2
+#define SDRAM_tRP_num 2
+#define SDRAM_tRAS TRAS_6
+#define SDRAM_tRAS_num 6
+#define SDRAM_tRCD TRCD_2
+#define SDRAM_tWR TWR_2
+#endif
+#if (CONFIG_SCLK_HZ > 89552239) && (CONFIG_SCLK_HZ <= 104477612)
+#define SDRAM_tRP TRP_2
+#define SDRAM_tRP_num 2
+#define SDRAM_tRAS TRAS_5
+#define SDRAM_tRAS_num 5
+#define SDRAM_tRCD TRCD_2
+#define SDRAM_tWR TWR_2
+#endif
+#if (CONFIG_SCLK_HZ > 74626866) && (CONFIG_SCLK_HZ <= 89552239)
+#define SDRAM_tRP TRP_2
+#define SDRAM_tRP_num 2
+#define SDRAM_tRAS TRAS_4
+#define SDRAM_tRAS_num 4
+#define SDRAM_tRCD TRCD_2
+#define SDRAM_tWR TWR_2
+#endif
+#if (CONFIG_SCLK_HZ > 66666667) && (CONFIG_SCLK_HZ <= 74626866)
+#define SDRAM_tRP TRP_2
+#define SDRAM_tRP_num 2
+#define SDRAM_tRAS TRAS_3
+#define SDRAM_tRAS_num 3
+#define SDRAM_tRCD TRCD_2
+#define SDRAM_tWR TWR_2
+#endif
+#if (CONFIG_SCLK_HZ > 59701493) && (CONFIG_SCLK_HZ <= 66666667)
+#define SDRAM_tRP TRP_1
+#define SDRAM_tRP_num 1
+#define SDRAM_tRAS TRAS_4
+#define SDRAM_tRAS_num 3
+#define SDRAM_tRCD TRCD_1
+#define SDRAM_tWR TWR_2
+#endif
+#if (CONFIG_SCLK_HZ > 44776119) && (CONFIG_SCLK_HZ <= 59701493)
+#define SDRAM_tRP TRP_1
+#define SDRAM_tRP_num 1
+#define SDRAM_tRAS TRAS_3
+#define SDRAM_tRAS_num 3
+#define SDRAM_tRCD TRCD_1
+#define SDRAM_tWR TWR_2
+#endif
+#if (CONFIG_SCLK_HZ > 29850746) && (CONFIG_SCLK_HZ <= 44776119)
+#define SDRAM_tRP TRP_1
+#define SDRAM_tRP_num 1
+#define SDRAM_tRAS TRAS_2
+#define SDRAM_tRAS_num 2
+#define SDRAM_tRCD TRCD_1
+#define SDRAM_tWR TWR_2
+#endif
+#if (CONFIG_SCLK_HZ <= 29850746)
+#define SDRAM_tRP TRP_1
+#define SDRAM_tRP_num 1
+#define SDRAM_tRAS TRAS_1
+#define SDRAM_tRAS_num 1
+#define SDRAM_tRCD TRCD_1
+#define SDRAM_tWR TWR_2
+#endif
+#endif
+
+#if (CONFIG_MEM_MT48LC16M16A2TG_75)
+ /*SDRAM INFORMATION: */
+#define SDRAM_Tref 64 /* Refresh period in milliseconds */
+#define SDRAM_NRA 8192 /* Number of row addresses in SDRAM */
+#define SDRAM_CL CL_3
+#endif
+
+#if (CONFIG_MEM_MT48LC16M8A2TG_75)
+ /*SDRAM INFORMATION: */
+#define SDRAM_Tref 64 /* Refresh period in milliseconds */
+#define SDRAM_NRA 4096 /* Number of row addresses in SDRAM */
+#define SDRAM_CL CL_3
+#endif
+
+#if (CONFIG_MEM_MT48LC32M8A2_75)
+ /*SDRAM INFORMATION: */
+#define SDRAM_Tref 64 /* Refresh period in milliseconds */
+#define SDRAM_NRA 8192 /* Number of row addresses in SDRAM */
+#define SDRAM_CL CL_3
+#endif
+
+#if (CONFIG_MEM_MT48LC64M4A2FB_7E)
+ /*SDRAM INFORMATION: */
+#define SDRAM_Tref 64 /* Refresh period in milliseconds */
+#define SDRAM_NRA 8192 /* Number of row addresses in SDRAM */
+#define SDRAM_CL CL_3
+#endif
+
+#if (CONFIG_MEM_GENERIC_BOARD)
+ /*SDRAM INFORMATION: Modify this for your board */
+#define SDRAM_Tref 64 /* Refresh period in milliseconds */
+#define SDRAM_NRA 8192 /* Number of row addresses in SDRAM */
+#define SDRAM_CL CL_3
+#endif
+
+#if (CONFIG_MEM_SIZE == 128)
+#define SDRAM_SIZE EBSZ_128
+#endif
+#if (CONFIG_MEM_SIZE == 64)
+#define SDRAM_SIZE EBSZ_64
+#endif
+#if (CONFIG_MEM_SIZE == 32)
+#define SDRAM_SIZE EBSZ_32
+#endif
+#if (CONFIG_MEM_SIZE == 16)
+#define SDRAM_SIZE EBSZ_16
+#endif
+#if (CONFIG_MEM_ADD_WIDTH == 11)
+#define SDRAM_WIDTH EBCAW_11
+#endif
+#if (CONFIG_MEM_ADD_WIDTH == 10)
+#define SDRAM_WIDTH EBCAW_10
+#endif
+#if (CONFIG_MEM_ADD_WIDTH == 9)
+#define SDRAM_WIDTH EBCAW_9
+#endif
+#if (CONFIG_MEM_ADD_WIDTH == 8)
+#define SDRAM_WIDTH EBCAW_8
+#endif
+
+#define mem_SDBCTL (SDRAM_WIDTH | SDRAM_SIZE | EBE)
+
+/* Equation from section 17 (p17-46) of BF533 HRM */
+#define mem_SDRRC (((CONFIG_SCLK_HZ / 1000) * SDRAM_Tref) / SDRAM_NRA) - (SDRAM_tRAS_num + SDRAM_tRP_num)
+
+/* Enable SCLK Out */
+#define mem_SDGCTL (SCTLE | SDRAM_CL | SDRAM_tRAS | SDRAM_tRP | SDRAM_tRCD | SDRAM_tWR | PSS)
+
+#if defined CONFIG_CLKIN_HALF
+#define CLKIN_HALF 1
+#else
+#define CLKIN_HALF 0
+#endif
+
+#if defined CONFIG_PLL_BYPASS
+#define PLL_BYPASS 1
+#else
+#define PLL_BYPASS 0
+#endif
+
+/***************************************Currently Not Being Used *********************************/
+#define flash_EBIU_AMBCTL_WAT ((CONFIG_FLASH_SPEED_BWAT * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1
+#define flash_EBIU_AMBCTL_RAT ((CONFIG_FLASH_SPEED_BRAT * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1
+#define flash_EBIU_AMBCTL_HT ((CONFIG_FLASH_SPEED_BHT * 4) / (4000000000 / CONFIG_SCLK_HZ))
+#define flash_EBIU_AMBCTL_ST ((CONFIG_FLASH_SPEED_BST * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1
+#define flash_EBIU_AMBCTL_TT ((CONFIG_FLASH_SPEED_BTT * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1
+
+#if (flash_EBIU_AMBCTL_TT > 3)
+#define flash_EBIU_AMBCTL0_TT B0TT_4
+#endif
+#if (flash_EBIU_AMBCTL_TT == 3)
+#define flash_EBIU_AMBCTL0_TT B0TT_3
+#endif
+#if (flash_EBIU_AMBCTL_TT == 2)
+#define flash_EBIU_AMBCTL0_TT B0TT_2
+#endif
+#if (flash_EBIU_AMBCTL_TT < 2)
+#define flash_EBIU_AMBCTL0_TT B0TT_1
+#endif
+
+#if (flash_EBIU_AMBCTL_ST > 3)
+#define flash_EBIU_AMBCTL0_ST B0ST_4
+#endif
+#if (flash_EBIU_AMBCTL_ST == 3)
+#define flash_EBIU_AMBCTL0_ST B0ST_3
+#endif
+#if (flash_EBIU_AMBCTL_ST == 2)
+#define flash_EBIU_AMBCTL0_ST B0ST_2
+#endif
+#if (flash_EBIU_AMBCTL_ST < 2)
+#define flash_EBIU_AMBCTL0_ST B0ST_1
+#endif
+
+#if (flash_EBIU_AMBCTL_HT > 2)
+#define flash_EBIU_AMBCTL0_HT B0HT_3
+#endif
+#if (flash_EBIU_AMBCTL_HT == 2)
+#define flash_EBIU_AMBCTL0_HT B0HT_2
+#endif
+#if (flash_EBIU_AMBCTL_HT == 1)
+#define flash_EBIU_AMBCTL0_HT B0HT_1
+#endif
+#if (flash_EBIU_AMBCTL_HT == 0 && CONFIG_FLASH_SPEED_BHT == 0)
+#define flash_EBIU_AMBCTL0_HT B0HT_0
+#endif
+#if (flash_EBIU_AMBCTL_HT == 0 && CONFIG_FLASH_SPEED_BHT != 0)
+#define flash_EBIU_AMBCTL0_HT B0HT_1
+#endif
+
+#if (flash_EBIU_AMBCTL_WAT > 14)
+#define flash_EBIU_AMBCTL0_WAT B0WAT_15
+#endif
+#if (flash_EBIU_AMBCTL_WAT == 14)
+#define flash_EBIU_AMBCTL0_WAT B0WAT_14
+#endif
+#if (flash_EBIU_AMBCTL_WAT == 13)
+#define flash_EBIU_AMBCTL0_WAT B0WAT_13
+#endif
+#if (flash_EBIU_AMBCTL_WAT == 12)
+#define flash_EBIU_AMBCTL0_WAT B0WAT_12
+#endif
+#if (flash_EBIU_AMBCTL_WAT == 11)
+#define flash_EBIU_AMBCTL0_WAT B0WAT_11
+#endif
+#if (flash_EBIU_AMBCTL_WAT == 10)
+#define flash_EBIU_AMBCTL0_WAT B0WAT_10
+#endif
+#if (flash_EBIU_AMBCTL_WAT == 9)
+#define flash_EBIU_AMBCTL0_WAT B0WAT_9
+#endif
+#if (flash_EBIU_AMBCTL_WAT == 8)
+#define flash_EBIU_AMBCTL0_WAT B0WAT_8
+#endif
+#if (flash_EBIU_AMBCTL_WAT == 7)
+#define flash_EBIU_AMBCTL0_WAT B0WAT_7
+#endif
+#if (flash_EBIU_AMBCTL_WAT == 6)
+#define flash_EBIU_AMBCTL0_WAT B0WAT_6
+#endif
+#if (flash_EBIU_AMBCTL_WAT == 5)
+#define flash_EBIU_AMBCTL0_WAT B0WAT_5
+#endif
+#if (flash_EBIU_AMBCTL_WAT == 4)
+#define flash_EBIU_AMBCTL0_WAT B0WAT_4
+#endif
+#if (flash_EBIU_AMBCTL_WAT == 3)
+#define flash_EBIU_AMBCTL0_WAT B0WAT_3
+#endif
+#if (flash_EBIU_AMBCTL_WAT == 2)
+#define flash_EBIU_AMBCTL0_WAT B0WAT_2
+#endif
+#if (flash_EBIU_AMBCTL_WAT == 1)
+#define flash_EBIU_AMBCTL0_WAT B0WAT_1
+#endif
+
+#if (flash_EBIU_AMBCTL_RAT > 14)
+#define flash_EBIU_AMBCTL0_RAT B0RAT_15
+#endif
+#if (flash_EBIU_AMBCTL_RAT == 14)
+#define flash_EBIU_AMBCTL0_RAT B0RAT_14
+#endif
+#if (flash_EBIU_AMBCTL_RAT == 13)
+#define flash_EBIU_AMBCTL0_RAT B0RAT_13
+#endif
+#if (flash_EBIU_AMBCTL_RAT == 12)
+#define flash_EBIU_AMBCTL0_RAT B0RAT_12
+#endif
+#if (flash_EBIU_AMBCTL_RAT == 11)
+#define flash_EBIU_AMBCTL0_RAT B0RAT_11
+#endif
+#if (flash_EBIU_AMBCTL_RAT == 10)
+#define flash_EBIU_AMBCTL0_RAT B0RAT_10
+#endif
+#if (flash_EBIU_AMBCTL_RAT == 9)
+#define flash_EBIU_AMBCTL0_RAT B0RAT_9
+#endif
+#if (flash_EBIU_AMBCTL_RAT == 8)
+#define flash_EBIU_AMBCTL0_RAT B0RAT_8
+#endif
+#if (flash_EBIU_AMBCTL_RAT == 7)
+#define flash_EBIU_AMBCTL0_RAT B0RAT_7
+#endif
+#if (flash_EBIU_AMBCTL_RAT == 6)
+#define flash_EBIU_AMBCTL0_RAT B0RAT_6
+#endif
+#if (flash_EBIU_AMBCTL_RAT == 5)
+#define flash_EBIU_AMBCTL0_RAT B0RAT_5
+#endif
+#if (flash_EBIU_AMBCTL_RAT == 4)
+#define flash_EBIU_AMBCTL0_RAT B0RAT_4
+#endif
+#if (flash_EBIU_AMBCTL_RAT == 3)
+#define flash_EBIU_AMBCTL0_RAT B0RAT_3
+#endif
+#if (flash_EBIU_AMBCTL_RAT == 2)
+#define flash_EBIU_AMBCTL0_RAT B0RAT_2
+#endif
+#if (flash_EBIU_AMBCTL_RAT == 1)
+#define flash_EBIU_AMBCTL0_RAT B0RAT_1
+#endif
+
+#define flash_EBIU_AMBCTL0 \
+ (flash_EBIU_AMBCTL0_WAT | flash_EBIU_AMBCTL0_RAT | flash_EBIU_AMBCTL0_HT | \
+ flash_EBIU_AMBCTL0_ST | flash_EBIU_AMBCTL0_TT | CONFIG_FLASH_SPEED_RDYEN)
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