[PATCH] ARM: OMAP: move plat-omap/include/plat/sdrc.h into mach-omap2/sdrc.h
Paul Walmsley
paul at pwsan.com
Tue Oct 16 20:46:45 EDT 2012
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 at pwsan.com>
Cc: Tony Lindgren <tony at atomide.com>
---
This has a dependency on Tomi's "OMAP: VRFB: convert to platform device"
series.
arch/arm/mach-omap2/board-omap3logic.c | 1 -
arch/arm/mach-omap2/clkt2xxx_dpllcore.c | 2 +-
arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c | 2 +-
arch/arm/mach-omap2/clkt34xx_dpll3m2.c | 1 -
arch/arm/mach-omap2/control.c | 4 +-
arch/arm/mach-omap2/gpmc.c | 1 -
arch/arm/mach-omap2/io.c | 2 +-
arch/arm/mach-omap2/pm34xx.c | 1 -
arch/arm/mach-omap2/sdram-hynix-h8mbx00u0mer-0em.h | 2 +-
arch/arm/mach-omap2/sdram-micron-mt46h32m32lf-6.h | 2 +-
arch/arm/mach-omap2/sdram-nokia.c | 2 +-
arch/arm/mach-omap2/sdram-numonyx-m65kxxxxam.h | 2 +-
.../mach-omap2/sdram-qimonda-hyb18m512160af-6.h | 2 +-
arch/arm/mach-omap2/sdrc.c | 1 -
arch/arm/mach-omap2/sdrc.h | 153 +++++++++++++++++-
arch/arm/mach-omap2/sdrc2xxx.c | 1 -
arch/arm/plat-omap/include/plat/sdrc.h | 164 --------------------
17 files changed, 156 insertions(+), 187 deletions(-)
delete mode 100644 arch/arm/plat-omap/include/plat/sdrc.h
diff --git a/arch/arm/mach-omap2/board-omap3logic.c b/arch/arm/mach-omap2/board-omap3logic.c
index 7bd8253..cbcea42 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 4ae4392..3507659 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 3524f0e..0cf63e7 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 7c6da2f..aff6ca4 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 d1ff839..bf2be5c 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 5ac5cf3..e7f2b80 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 4234d28..ab82dbe 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 ba670db..ee0bffc 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 8bfaf34..1ee58c2 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 a391b49..85cccc0 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 845c4fd..5e5702c 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 cd43529..003f7bf 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 0e518a7..8dc3de5 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 e3d345f..503d41f9 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 b3f8379..cdca44f 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 +50,62 @@ 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);
+
+void omap2_sms_write_rot_control(u32 val, unsigned ctx);
+void omap2_sms_write_rot_size(u32 val, unsigned ctx);
+void omap2_sms_write_rot_physical_ba(u32 val, unsigned ctx);
+
+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 +113,7 @@ 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 +131,88 @@ 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
+#define SMS_ROT_CONTROL(context) (0x180 + 0x10 * context)
+#define SMS_ROT_SIZE(context) (0x184 + 0x10 * context)
+#define SMS_ROT_PHYSICAL_BA(context) (0x188 + 0x10 * context)
+/* 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 73e55e4..f7074ff 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 36d6a76..0000000
--- a/arch/arm/plat-omap/include/plat/sdrc.h
+++ /dev/null
@@ -1,164 +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
-#define SMS_ROT_CONTROL(context) (0x180 + 0x10 * context)
-#define SMS_ROT_SIZE(context) (0x184 + 0x10 * context)
-#define SMS_ROT_PHYSICAL_BA(context) (0x188 + 0x10 * context)
-/* 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);
-
-void omap2_sms_write_rot_control(u32 val, unsigned ctx);
-void omap2_sms_write_rot_size(u32 val, unsigned ctx);
-void omap2_sms_write_rot_physical_ba(u32 val, unsigned ctx);
-
-#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
--
1.7.10.4
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