--- /dev/null
+/*
+ * Copyright (C) 2013 Lothar Waßmann <LW@KARO-electronics.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+/* timing parameters for Samsung K9F1G08U0D */
+#define tCS_NAND 20
+#define tCH_NAND 5
+#define tCEA_NAND 25
+#define tREA_NAND 20
+#define tWP_NAND 15
+#define tRP_NAND 15
+#define tWC_NAND 30
+#define tRC_NAND 30
+#define tALS_NAND 15
+#define tADL_NAND 100
+#define tRHW_NAND 100
+
+/* Values for GPMC_CONFIG1 - signal control parameters */
+#define WRAPBURST (1 << 31)
+#define READMULTIPLE (1 << 30)
+#define READTYPE (1 << 29)
+#define WRITEMULTIPLE (1 << 28)
+#define WRITETYPE (1 << 27)
+#define CLKACTIVATIONTIME(x) (((x) & 3) << 25)
+#define ATTACHEDDEVICEPAGELENGTH(x) (((x) & 3) << 23)
+#define WAITREADMONITORING (1 << 22)
+#define WAITWRITEMONITORING (1 << 21)
+#define WAITMONITORINGTIME(x) (((x) & 3) << 18)
+#define WAITPINSELECT(x) (((x) & 3) << 16)
+#define DEVICESIZE(x) (((x) & 3) << 12)
+#define DEVICESIZE_8BIT DEVICESIZE(0)
+#define DEVICESIZE_16BIT DEVICESIZE(1)
+#define DEVICETYPE(x) (((x) & 3) << 10)
+#define DEVICETYPE_NOR DEVICETYPE(0)
+#define DEVICETYPE_NAND DEVICETYPE(2)
+#define MUXADDDATA(n) ((n) << 8)
+#define TIMEPARAGRANULARITY (1 << 4)
+#define GPMCFCLKDIVIDER(x) (((x) & 3) << 0)
+
+/* Values for GPMC_CONFIG2 - CS timing */
+#define CSWROFFTIME(x) (((x) & 0x1f) << 16)
+#define CSRDOFFTIME(x) (((x) & 0x1f) << 8)
+#define CSEXTRADELAY (1 << 7)
+#define CSONTIME(x) (((x) & 0xf) << 0)
+
+/* Values for GPMC_CONFIG3 - nADV timing */
+#define ADVWROFFTIME(x) (((x) & 0x1f) << 16)
+#define ADVRDOFFTIME(x) (((x) & 0x1f) << 8)
+#define ADVEXTRADELAY (1 << 7)
+#define ADVONTIME(x) (((x) & 0xf) << 0)
+
+/* Values for GPMC_CONFIG4 - nWE and nOE timing */
+#define WEOFFTIME(x) (((x) & 0x1f) << 24)
+#define WEEXTRADELAY (1 << 23)
+#define WEONTIME(x) (((x) & 0xf) << 16)
+#define OEOFFTIME(x) (((x) & 0x1f) << 8)
+#define OEEXTRADELAY (1 << 7)
+#define OEONTIME(x) (((x) & 0xf) << 0)
+
+/* Values for GPMC_CONFIG5 - RdAccessTime and CycleTime timing */
+#define PAGEBURSTACCESSTIME(x) (((x) & 0xf) << 24)
+#define RDACCESSTIME(x) (((x) & 0x1f) << 16)
+#define WRCYCLETIME(x) (((x) & 0x1f) << 8)
+#define RDCYCLETIME(x) (((x) & 0x1f) << 0)
+
+/* Values for GPMC_CONFIG6 - misc timings */
+#define WRACCESSTIME(x) (((x) & 0x1f) << 24)
+#define WRDATAONADMUXBUS(x) (((x) & 0xf) << 16)
+#define CYCLE2CYCLEDELAY(x) (((x) & 0xf) << 8)
+#define CYCLE2CYCLESAMECSEN (1 << 7)
+#define CYCLE2CYCLEDIFFCSEN (1 << 6)
+#define BUSTURNAROUND(x) (((x) & 0xf) << 0)
+
+/* Values for GPMC_CONFIG7 - CS address mapping configuration */
+#define MASKADDRESS(x) (((x) & 0xf) << 8)
+#define CSVALID (1 << 6)
+#define BASEADDRESS(x) (((x) & 0x3f) << 0)
+
+#define GPMC_CLK 100
+#define NS_TO_CK(ns) DIV_ROUND_UP((ns) * GPMC_CLK, 1000)
+
+#define _CSWOFF NS_TO_CK(tCS_NAND + tCH_NAND)
+#define _CSROFF NS_TO_CK(tCEA_NAND + tRP_NAND - tREA_NAND)
+
+#define _ADWOFF NS_TO_CK(0) /* ? */
+#define _ADROFF NS_TO_CK(0) /* ? */
+#define _ADON NS_TO_CK(0) /* ? */
+
+#define _WEOFF NS_TO_CK(tCS_NAND)
+#define _WEON NS_TO_CK(tCS_NAND - tWP_NAND)
+
+#define _OEOFF NS_TO_CK(tCS_NAND + tCH_NAND)
+#define _OEON NS_TO_CK(tCEA_NAND - tREA_NAND)
+
+#define _RDACC NS_TO_CK(tCEA_NAND)
+#define _WRCYC NS_TO_CK(tWC_NAND)
+#define _RDCYC NS_TO_CK(tRC_NAND)
+
+#define _WRACC NS_TO_CK(tALS_NAND)
+#define _WBURST NS_TO_CK(0)
+#define _CSHIGH NS_TO_CK(tADL_NAND)
+#define _BTURN NS_TO_CK(tRHW_NAND)
+
+#define TX48_NAND_GPMC_CONFIG1 (GPMCFCLKDIVIDER(0) | \
+ (0 << 4) /* TIMEPARAGRANULARITY */ | \
+ MUXADDDATA(0) | \
+ DEVICETYPE_NAND | \
+ DEVICESIZE_8BIT | \
+ WAITPINSELECT(0) | \
+ WAITMONITORINGTIME(0) | \
+ (0 << 21) /* WAITWRITEMONITORING */ | \
+ (0 << 22) /* WAITREADMONITORING */ | \
+ ATTACHEDDEVICEPAGELENGTH(0) | \
+ CLKACTIVATIONTIME(0) | \
+ (0 << 27) /* WRITETYPE */ | \
+ (0 << 28) /* WRITEMULTIPLE */ | \
+ (0 << 29) /* READTYPE */ | \
+ (0 << 30) /* READMULTIPLE */ | \
+ (0 << 31) /* WRAPBURST */)
+/* CONFIG2: Chip Select */
+#define TX48_NAND_GPMC_CONFIG2 (CSWROFFTIME(_CSWOFF) | \
+ CSRDOFFTIME(_CSROFF) | \
+ CSONTIME(0) | \
+ (0 << 7) /* CSEXTRADELAY */)
+/* CONFIG3: ADV/ALE */
+#define TX48_NAND_GPMC_CONFIG3 (ADVWROFFTIME(_ADWOFF) | \
+ ADVRDOFFTIME(_ADROFF) | \
+ (0 << 7) /* ADVEXTRADELAY */ | \
+ ADVONTIME(_ADON))
+/* CONFIG4: WE/OE */
+#define TX48_NAND_GPMC_CONFIG4 (WEOFFTIME(_WEOFF) | \
+ (0 << 23) /* WEEXTRADELAY */ | \
+ WEONTIME(_WEON) | \
+ OEOFFTIME(_OEOFF) | \
+ (0 << 7) /* OEEXTRADELAY */ | \
+ OEONTIME(_OEON))
+/* CONFIG5: Cycle Timing */
+#define TX48_NAND_GPMC_CONFIG5 (PAGEBURSTACCESSTIME(0) | \
+ RDACCESSTIME(_RDACC) | \
+ WRCYCLETIME(_WRCYC) | \
+ RDCYCLETIME(_RDCYC))
+/* CONFIG6: Rest of the Pack */
+#define TX48_NAND_GPMC_CONFIG6 (WRACCESSTIME(_WRACC) | \
+ WRDATAONADMUXBUS(_WBURST) | \
+ CYCLE2CYCLEDELAY(_CSHIGH) | \
+ CYCLE2CYCLESAMECSEN | \
+ (0 << 6) /* CYCLE2CYCLEDIFFCSEN */ | \
+ BUSTURNAROUND(_BTURN))
projects / karo-tx-uboot.git / blobdiff