diff options
| author | Paul Walmsley <paul@pwsan.com> | 2012-10-17 00:46:45 +0000 | 
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2012-10-17 10:18:37 -0700 | 
| commit | 3e6ece13d966a20a38ee7adfac452a47455ccd7a (patch) | |
| tree | 8ff651fcc0ee921e899caa969700f0024568021f | |
| parent | 1d81aea146c1236c8d6b90574eb3b7d59e02cdbf (diff) | |
| download | olio-linux-3.10-3e6ece13d966a20a38ee7adfac452a47455ccd7a.tar.xz olio-linux-3.10-3e6ece13d966a20a38ee7adfac452a47455ccd7a.zip | |
ARM: OMAP: move plat-omap/include/plat/sdrc.h into mach-omap2/sdrc.h
Remove arch/arm/plat-omap/include/plat/sdrc.h by folding its contents
into arch/arm/mach-omap2/sdrc.h.  The objective is to assist Tony in
cleaning out arch/arm/plat-omap/, as his upstreams request.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
[tony@atomide.com: updated to remove rotate macros]
Signed-off-by: Tony Lindgren <tony@atomide.com>
| -rw-r--r-- | arch/arm/mach-omap2/board-omap3logic.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/clkt2xxx_dpllcore.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/clkt34xx_dpll3m2.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/control.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/gpmc.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/io.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/pm34xx.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/sdram-hynix-h8mbx00u0mer-0em.h | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/sdram-micron-mt46h32m32lf-6.h | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/sdram-nokia.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/sdram-numonyx-m65kxxxxam.h | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/sdram-qimonda-hyb18m512160af-6.h | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/sdrc.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/sdrc.h | 146 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/sdrc2xxx.c | 1 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/sdrc.h | 157 | 
17 files changed, 149 insertions, 180 deletions
| diff --git a/arch/arm/mach-omap2/board-omap3logic.c b/arch/arm/mach-omap2/board-omap3logic.c index 7bd8253b5d1..cbcea420e33 100644 --- a/arch/arm/mach-omap2/board-omap3logic.c +++ b/arch/arm/mach-omap2/board-omap3logic.c @@ -36,7 +36,6 @@  #include "gpmc-smsc911x.h"  #include <plat/gpmc.h> -#include <plat/sdrc.h>  #include <plat/usb.h>  #include "common.h" diff --git a/arch/arm/mach-omap2/clkt2xxx_dpllcore.c b/arch/arm/mach-omap2/clkt2xxx_dpllcore.c index 4ae43922208..35076592189 100644 --- a/arch/arm/mach-omap2/clkt2xxx_dpllcore.c +++ b/arch/arm/mach-omap2/clkt2xxx_dpllcore.c @@ -27,13 +27,13 @@  #include <plat/clock.h>  #include <plat/sram.h> -#include <plat/sdrc.h>  #include "clock.h"  #include "clock2xxx.h"  #include "opp2xxx.h"  #include "cm2xxx_3xxx.h"  #include "cm-regbits-24xx.h" +#include "sdrc.h"  /* #define DOWN_VARIABLE_DPLL 1 */		/* Experimental */ diff --git a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c index 3524f0e7b6d..0cf63e7c610 100644 --- a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c +++ b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c @@ -35,7 +35,6 @@  #include <plat/clock.h>  #include <plat/sram.h> -#include <plat/sdrc.h>  #include "soc.h"  #include "clock.h" @@ -43,6 +42,7 @@  #include "opp2xxx.h"  #include "cm2xxx_3xxx.h"  #include "cm-regbits-24xx.h" +#include "sdrc.h"  const struct prcm_config *curr_prcm_set;  const struct prcm_config *rate_table; diff --git a/arch/arm/mach-omap2/clkt34xx_dpll3m2.c b/arch/arm/mach-omap2/clkt34xx_dpll3m2.c index 7c6da2f731d..aff6ca4fd3a 100644 --- a/arch/arm/mach-omap2/clkt34xx_dpll3m2.c +++ b/arch/arm/mach-omap2/clkt34xx_dpll3m2.c @@ -23,7 +23,6 @@  #include <plat/clock.h>  #include <plat/sram.h> -#include <plat/sdrc.h>  #include "clock.h"  #include "clock3xxx.h" diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c index d1ff8399a22..bf2be5c5468 100644 --- a/arch/arm/mach-omap2/control.c +++ b/arch/arm/mach-omap2/control.c @@ -1,7 +1,7 @@  /*   * OMAP2/3 System Control Module register access   * - * Copyright (C) 2007 Texas Instruments, Inc. + * Copyright (C) 2007, 2012 Texas Instruments, Inc.   * Copyright (C) 2007 Nokia Corporation   *   * Written by Paul Walmsley @@ -15,8 +15,6 @@  #include <linux/kernel.h>  #include <linux/io.h> -#include <plat/sdrc.h> -  #include "soc.h"  #include "iomap.h"  #include "common.h" diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c index 5ac5cf30406..e7f2b80721c 100644 --- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c @@ -31,7 +31,6 @@  #include <plat/cpu.h>  #include <plat/gpmc.h> -#include <plat/sdrc.h>  #include <plat/omap_device.h>  #include "soc.h" diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index 4234d28dc17..ab82dbe92e0 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -26,7 +26,6 @@  #include <asm/mach/map.h>  #include <plat/sram.h> -#include <plat/sdrc.h>  #include <plat/serial.h>  #include <plat/omap-pm.h>  #include <plat/omap_hwmod.h> @@ -43,6 +42,7 @@  #include "clock2xxx.h"  #include "clock3xxx.h"  #include "clock44xx.h" +#include "sdrc.h"  /*   * The machine specific code may provide the extra mapping besides the diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index ba670db1fd3..ee0bffc614b 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -38,7 +38,6 @@  #include <plat/sram.h>  #include "clockdomain.h"  #include "powerdomain.h" -#include <plat/sdrc.h>  #include <plat/prcm.h>  #include <plat/gpmc.h>  #include <plat/dma.h> diff --git a/arch/arm/mach-omap2/sdram-hynix-h8mbx00u0mer-0em.h b/arch/arm/mach-omap2/sdram-hynix-h8mbx00u0mer-0em.h index 8bfaf342a02..1ee58c281a3 100644 --- a/arch/arm/mach-omap2/sdram-hynix-h8mbx00u0mer-0em.h +++ b/arch/arm/mach-omap2/sdram-hynix-h8mbx00u0mer-0em.h @@ -11,7 +11,7 @@  #ifndef __ARCH_ARM_MACH_OMAP2_SDRAM_HYNIX_H8MBX00U0MER0EM  #define __ARCH_ARM_MACH_OMAP2_SDRAM_HYNIX_H8MBX00U0MER0EM -#include <plat/sdrc.h> +#include "sdrc.h"  /* Hynix H8MBX00U0MER-0EM */  static struct omap_sdrc_params h8mbx00u0mer0em_sdrc_params[] = { diff --git a/arch/arm/mach-omap2/sdram-micron-mt46h32m32lf-6.h b/arch/arm/mach-omap2/sdram-micron-mt46h32m32lf-6.h index a391b4939f7..85cccc004c0 100644 --- a/arch/arm/mach-omap2/sdram-micron-mt46h32m32lf-6.h +++ b/arch/arm/mach-omap2/sdram-micron-mt46h32m32lf-6.h @@ -14,7 +14,7 @@  #ifndef ARCH_ARM_MACH_OMAP2_SDRAM_MICRON_MT46H32M32LF  #define ARCH_ARM_MACH_OMAP2_SDRAM_MICRON_MT46H32M32LF -#include <plat/sdrc.h> +#include "sdrc.h"  /* Micron MT46H32M32LF-6 */  /* XXX Using ARE = 0x1 (no autorefresh burst) -- can this be changed? */ diff --git a/arch/arm/mach-omap2/sdram-nokia.c b/arch/arm/mach-omap2/sdram-nokia.c index 845c4fd2b12..5e5702cd410 100644 --- a/arch/arm/mach-omap2/sdram-nokia.c +++ b/arch/arm/mach-omap2/sdram-nokia.c @@ -19,9 +19,9 @@  #include "common.h"  #include <plat/clock.h> -#include <plat/sdrc.h>  #include "sdram-nokia.h" +#include "sdrc.h"  /* In picoseconds, except for tREF (ns), tXP, tCKE, tWTR (clks) */  struct sdram_timings { diff --git a/arch/arm/mach-omap2/sdram-numonyx-m65kxxxxam.h b/arch/arm/mach-omap2/sdram-numonyx-m65kxxxxam.h index cd435291702..003f7bf4e2e 100644 --- a/arch/arm/mach-omap2/sdram-numonyx-m65kxxxxam.h +++ b/arch/arm/mach-omap2/sdram-numonyx-m65kxxxxam.h @@ -11,7 +11,7 @@  #ifndef __ARCH_ARM_MACH_OMAP2_SDRAM_NUMONYX_M65KXXXXAM  #define __ARCH_ARM_MACH_OMAP2_SDRAM_NUMONYX_M65KXXXXAM -#include <plat/sdrc.h> +#include "sdrc.h"  /* Numonyx  M65KXXXXAM */  static struct omap_sdrc_params m65kxxxxam_sdrc_params[] = { diff --git a/arch/arm/mach-omap2/sdram-qimonda-hyb18m512160af-6.h b/arch/arm/mach-omap2/sdram-qimonda-hyb18m512160af-6.h index 0e518a72831..8dc3de5ebb5 100644 --- a/arch/arm/mach-omap2/sdram-qimonda-hyb18m512160af-6.h +++ b/arch/arm/mach-omap2/sdram-qimonda-hyb18m512160af-6.h @@ -14,7 +14,7 @@  #ifndef ARCH_ARM_MACH_OMAP2_SDRAM_QIMONDA_HYB18M512160AF6  #define ARCH_ARM_MACH_OMAP2_SDRAM_QIMONDA_HYB18M512160AF6 -#include <plat/sdrc.h> +#include "sdrc.h"  /* Qimonda HYB18M512160AF-6 */  static struct omap_sdrc_params hyb18m512160af6_sdrc_params[] = { diff --git a/arch/arm/mach-omap2/sdrc.c b/arch/arm/mach-omap2/sdrc.c index 4282e6e967d..761a781a99c 100644 --- a/arch/arm/mach-omap2/sdrc.c +++ b/arch/arm/mach-omap2/sdrc.c @@ -27,7 +27,6 @@  #include <plat/clock.h>  #include <plat/sram.h> -#include <plat/sdrc.h>  #include "sdrc.h"  static struct omap_sdrc_params *sdrc_init_params_cs0, *sdrc_init_params_cs1; diff --git a/arch/arm/mach-omap2/sdrc.h b/arch/arm/mach-omap2/sdrc.h index b3f83799e6c..69c4b329452 100644 --- a/arch/arm/mach-omap2/sdrc.h +++ b/arch/arm/mach-omap2/sdrc.h @@ -2,12 +2,14 @@  #define __ARCH_ARM_MACH_OMAP2_SDRC_H  /* - * OMAP2 SDRC register definitions + * OMAP2/3 SDRC/SMS macros and prototypes   * - * Copyright (C) 2007 Texas Instruments, Inc. - * Copyright (C) 2007 Nokia Corporation + * Copyright (C) 2007-2008, 2012 Texas Instruments, Inc. + * Copyright (C) 2007-2008 Nokia Corporation   * - * Written by Paul Walmsley + * Paul Walmsley + * Tony Lindgren + * Richard Woodruff   *   * 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 @@ -15,8 +17,6 @@   */  #undef DEBUG -#include <plat/sdrc.h> -  #ifndef __ASSEMBLER__  #include <linux/io.h> @@ -50,6 +50,58 @@ static inline u32 sms_read_reg(u16 reg)  {  	return __raw_readl(OMAP_SMS_REGADDR(reg));  } + + +/** + * struct omap_sdrc_params - SDRC parameters for a given SDRC clock rate + * @rate: SDRC clock rate (in Hz) + * @actim_ctrla: Value to program to SDRC_ACTIM_CTRLA for this rate + * @actim_ctrlb: Value to program to SDRC_ACTIM_CTRLB for this rate + * @rfr_ctrl: Value to program to SDRC_RFR_CTRL for this rate + * @mr: Value to program to SDRC_MR for this rate + * + * This structure holds a pre-computed set of register values for the + * SDRC for a given SDRC clock rate and SDRAM chip.  These are + * intended to be pre-computed and specified in an array in the board-*.c + * files.  The structure is keyed off the 'rate' field. + */ +struct omap_sdrc_params { +	unsigned long rate; +	u32 actim_ctrla; +	u32 actim_ctrlb; +	u32 rfr_ctrl; +	u32 mr; +}; + +#ifdef CONFIG_SOC_HAS_OMAP2_SDRC +void omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0, +			    struct omap_sdrc_params *sdrc_cs1); +#else +static inline void __init omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0, +					  struct omap_sdrc_params *sdrc_cs1) {}; +#endif + +int omap2_sdrc_get_params(unsigned long r, +			  struct omap_sdrc_params **sdrc_cs0, +			  struct omap_sdrc_params **sdrc_cs1); +void omap2_sms_save_context(void); +void omap2_sms_restore_context(void); + +struct memory_timings { +	u32 m_type;		/* ddr = 1, sdr = 0 */ +	u32 dll_mode;		/* use lock mode = 1, unlock mode = 0 */ +	u32 slow_dll_ctrl;	/* unlock mode, dll value for slow speed */ +	u32 fast_dll_ctrl;	/* unlock mode, dll value for fast speed */ +	u32 base_cs;		/* base chip select to use for calculations */ +}; + +extern void omap2xxx_sdrc_init_params(u32 force_lock_to_unlock_mode); +struct omap_sdrc_params *rx51_get_sdram_timings(void); + +u32 omap2xxx_sdrc_dll_is_unlocked(void); +u32 omap2xxx_sdrc_reprogram(u32 level, u32 force); + +  #else  #define OMAP242X_SDRC_REGADDR(reg)					\  			OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE + (reg)) @@ -57,6 +109,7 @@ static inline u32 sms_read_reg(u16 reg)  			OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE + (reg))  #define OMAP34XX_SDRC_REGADDR(reg)					\  			OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE + (reg)) +  #endif	/* __ASSEMBLER__ */  /* Minimum frequency that the SDRC DLL can lock at */ @@ -74,4 +127,85 @@ static inline u32 sms_read_reg(u16 reg)   */  #define SDRC_MPURATE_LOOPS		96 +/* SDRC register offsets - read/write with sdrc_{read,write}_reg() */ + +#define SDRC_SYSCONFIG		0x010 +#define SDRC_CS_CFG		0x040 +#define SDRC_SHARING		0x044 +#define SDRC_ERR_TYPE		0x04C +#define SDRC_DLLA_CTRL		0x060 +#define SDRC_DLLA_STATUS	0x064 +#define SDRC_DLLB_CTRL		0x068 +#define SDRC_DLLB_STATUS	0x06C +#define SDRC_POWER		0x070 +#define SDRC_MCFG_0		0x080 +#define SDRC_MR_0		0x084 +#define SDRC_EMR2_0		0x08c +#define SDRC_ACTIM_CTRL_A_0	0x09c +#define SDRC_ACTIM_CTRL_B_0	0x0a0 +#define SDRC_RFR_CTRL_0		0x0a4 +#define SDRC_MANUAL_0		0x0a8 +#define SDRC_MCFG_1		0x0B0 +#define SDRC_MR_1		0x0B4 +#define SDRC_EMR2_1		0x0BC +#define SDRC_ACTIM_CTRL_A_1	0x0C4 +#define SDRC_ACTIM_CTRL_B_1	0x0C8 +#define SDRC_RFR_CTRL_1		0x0D4 +#define SDRC_MANUAL_1		0x0D8 + +#define SDRC_POWER_AUTOCOUNT_SHIFT	8 +#define SDRC_POWER_AUTOCOUNT_MASK	(0xffff << SDRC_POWER_AUTOCOUNT_SHIFT) +#define SDRC_POWER_CLKCTRL_SHIFT	4 +#define SDRC_POWER_CLKCTRL_MASK		(0x3 << SDRC_POWER_CLKCTRL_SHIFT) +#define SDRC_SELF_REFRESH_ON_AUTOCOUNT	(0x2 << SDRC_POWER_CLKCTRL_SHIFT) + +/* + * These values represent the number of memory clock cycles between + * autorefresh initiation.  They assume 1 refresh per 64 ms (JEDEC), 8192 + * rows per device, and include a subtraction of a 50 cycle window in the + * event that the autorefresh command is delayed due to other SDRC activity. + * The '| 1' sets the ARE field to send one autorefresh when the autorefresh + * counter reaches 0. + * + * These represent optimal values for common parts, it won't work for all. + * As long as you scale down, most parameters are still work, they just + * become sub-optimal. The RFR value goes in the opposite direction. If you + * don't adjust it down as your clock period increases the refresh interval + * will not be met. Setting all parameters for complete worst case may work, + * but may cut memory performance by 2x. Due to errata the DLLs need to be + * unlocked and their value needs run time calibration.	A dynamic call is + * need for that as no single right value exists acorss production samples. + * + * Only the FULL speed values are given. Current code is such that rate + * changes must be made at DPLLoutx2. The actual value adjustment for low + * frequency operation will be handled by omap_set_performance() + * + * By having the boot loader boot up in the fastest L4 speed available likely + * will result in something which you can switch between. + */ +#define SDRC_RFR_CTRL_165MHz	(0x00044c00 | 1) +#define SDRC_RFR_CTRL_133MHz	(0x0003de00 | 1) +#define SDRC_RFR_CTRL_100MHz	(0x0002da01 | 1) +#define SDRC_RFR_CTRL_110MHz	(0x0002da01 | 1) /* Need to calc */ +#define SDRC_RFR_CTRL_BYPASS	(0x00005000 | 1) /* Need to calc */ + + +/* + * SMS register access + */ + +#define OMAP242X_SMS_REGADDR(reg)					\ +		(void __iomem *)OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE + reg) +#define OMAP243X_SMS_REGADDR(reg)					\ +		(void __iomem *)OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE + reg) +#define OMAP343X_SMS_REGADDR(reg)					\ +		(void __iomem *)OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE + reg) + +/* SMS register offsets - read/write with sms_{read,write}_reg() */ + +#define SMS_SYSCONFIG			0x010 +/* REVISIT: fill in other SMS registers here */ + + +  #endif diff --git a/arch/arm/mach-omap2/sdrc2xxx.c b/arch/arm/mach-omap2/sdrc2xxx.c index 73e55e48532..f7074ff1d08 100644 --- a/arch/arm/mach-omap2/sdrc2xxx.c +++ b/arch/arm/mach-omap2/sdrc2xxx.c @@ -26,7 +26,6 @@  #include <plat/clock.h>  #include <plat/sram.h> -#include <plat/sdrc.h>  #include "soc.h"  #include "iomap.h" diff --git a/arch/arm/plat-omap/include/plat/sdrc.h b/arch/arm/plat-omap/include/plat/sdrc.h deleted file mode 100644 index c68bab29cfc..00000000000 --- a/arch/arm/plat-omap/include/plat/sdrc.h +++ /dev/null @@ -1,157 +0,0 @@ -#ifndef ____ASM_ARCH_SDRC_H -#define ____ASM_ARCH_SDRC_H - -/* - * OMAP2/3 SDRC/SMS register definitions - * - * Copyright (C) 2007-2008 Texas Instruments, Inc. - * Copyright (C) 2007-2008 Nokia Corporation - * - * Tony Lindgren - * Paul Walmsley - * Richard Woodruff - * - * 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. - */ - - -/* SDRC register offsets - read/write with sdrc_{read,write}_reg() */ - -#define SDRC_SYSCONFIG		0x010 -#define SDRC_CS_CFG		0x040 -#define SDRC_SHARING		0x044 -#define SDRC_ERR_TYPE		0x04C -#define SDRC_DLLA_CTRL		0x060 -#define SDRC_DLLA_STATUS	0x064 -#define SDRC_DLLB_CTRL		0x068 -#define SDRC_DLLB_STATUS	0x06C -#define SDRC_POWER		0x070 -#define SDRC_MCFG_0		0x080 -#define SDRC_MR_0		0x084 -#define SDRC_EMR2_0		0x08c -#define SDRC_ACTIM_CTRL_A_0	0x09c -#define SDRC_ACTIM_CTRL_B_0	0x0a0 -#define SDRC_RFR_CTRL_0		0x0a4 -#define SDRC_MANUAL_0		0x0a8 -#define SDRC_MCFG_1		0x0B0 -#define SDRC_MR_1		0x0B4 -#define SDRC_EMR2_1		0x0BC -#define SDRC_ACTIM_CTRL_A_1	0x0C4 -#define SDRC_ACTIM_CTRL_B_1	0x0C8 -#define SDRC_RFR_CTRL_1		0x0D4 -#define SDRC_MANUAL_1		0x0D8 - -#define SDRC_POWER_AUTOCOUNT_SHIFT	8 -#define SDRC_POWER_AUTOCOUNT_MASK	(0xffff << SDRC_POWER_AUTOCOUNT_SHIFT) -#define SDRC_POWER_CLKCTRL_SHIFT	4 -#define SDRC_POWER_CLKCTRL_MASK		(0x3 << SDRC_POWER_CLKCTRL_SHIFT) -#define SDRC_SELF_REFRESH_ON_AUTOCOUNT	(0x2 << SDRC_POWER_CLKCTRL_SHIFT) - -/* - * These values represent the number of memory clock cycles between - * autorefresh initiation.  They assume 1 refresh per 64 ms (JEDEC), 8192 - * rows per device, and include a subtraction of a 50 cycle window in the - * event that the autorefresh command is delayed due to other SDRC activity. - * The '| 1' sets the ARE field to send one autorefresh when the autorefresh - * counter reaches 0. - * - * These represent optimal values for common parts, it won't work for all. - * As long as you scale down, most parameters are still work, they just - * become sub-optimal. The RFR value goes in the opposite direction. If you - * don't adjust it down as your clock period increases the refresh interval - * will not be met. Setting all parameters for complete worst case may work, - * but may cut memory performance by 2x. Due to errata the DLLs need to be - * unlocked and their value needs run time calibration.	A dynamic call is - * need for that as no single right value exists acorss production samples. - * - * Only the FULL speed values are given. Current code is such that rate - * changes must be made at DPLLoutx2. The actual value adjustment for low - * frequency operation will be handled by omap_set_performance() - * - * By having the boot loader boot up in the fastest L4 speed available likely - * will result in something which you can switch between. - */ -#define SDRC_RFR_CTRL_165MHz	(0x00044c00 | 1) -#define SDRC_RFR_CTRL_133MHz	(0x0003de00 | 1) -#define SDRC_RFR_CTRL_100MHz	(0x0002da01 | 1) -#define SDRC_RFR_CTRL_110MHz	(0x0002da01 | 1) /* Need to calc */ -#define SDRC_RFR_CTRL_BYPASS	(0x00005000 | 1) /* Need to calc */ - - -/* - * SMS register access - */ - -#define OMAP242X_SMS_REGADDR(reg)					\ -		(void __iomem *)OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE + reg) -#define OMAP243X_SMS_REGADDR(reg)					\ -		(void __iomem *)OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE + reg) -#define OMAP343X_SMS_REGADDR(reg)					\ -		(void __iomem *)OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE + reg) - -/* SMS register offsets - read/write with sms_{read,write}_reg() */ - -#define SMS_SYSCONFIG			0x010 -/* REVISIT: fill in other SMS registers here */ - - -#ifndef __ASSEMBLER__ - -/** - * struct omap_sdrc_params - SDRC parameters for a given SDRC clock rate - * @rate: SDRC clock rate (in Hz) - * @actim_ctrla: Value to program to SDRC_ACTIM_CTRLA for this rate - * @actim_ctrlb: Value to program to SDRC_ACTIM_CTRLB for this rate - * @rfr_ctrl: Value to program to SDRC_RFR_CTRL for this rate - * @mr: Value to program to SDRC_MR for this rate - * - * This structure holds a pre-computed set of register values for the - * SDRC for a given SDRC clock rate and SDRAM chip.  These are - * intended to be pre-computed and specified in an array in the board-*.c - * files.  The structure is keyed off the 'rate' field. - */ -struct omap_sdrc_params { -	unsigned long rate; -	u32 actim_ctrla; -	u32 actim_ctrlb; -	u32 rfr_ctrl; -	u32 mr; -}; - -#ifdef CONFIG_SOC_HAS_OMAP2_SDRC -void omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0, -			    struct omap_sdrc_params *sdrc_cs1); -#else -static inline void __init omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0, -					  struct omap_sdrc_params *sdrc_cs1) {}; -#endif - -int omap2_sdrc_get_params(unsigned long r, -			  struct omap_sdrc_params **sdrc_cs0, -			  struct omap_sdrc_params **sdrc_cs1); -void omap2_sms_save_context(void); -void omap2_sms_restore_context(void); - -#ifdef CONFIG_ARCH_OMAP2 - -struct memory_timings { -	u32 m_type;		/* ddr = 1, sdr = 0 */ -	u32 dll_mode;		/* use lock mode = 1, unlock mode = 0 */ -	u32 slow_dll_ctrl;	/* unlock mode, dll value for slow speed */ -	u32 fast_dll_ctrl;	/* unlock mode, dll value for fast speed */ -	u32 base_cs;		/* base chip select to use for calculations */ -}; - -extern void omap2xxx_sdrc_init_params(u32 force_lock_to_unlock_mode); -struct omap_sdrc_params *rx51_get_sdram_timings(void); - -u32 omap2xxx_sdrc_dll_is_unlocked(void); -u32 omap2xxx_sdrc_reprogram(u32 level, u32 force); - -#endif  /* CONFIG_ARCH_OMAP2 */ - -#endif  /* __ASSEMBLER__ */ - -#endif |