ARM: OMAP2: Add common register access for 24xx and 34xx

This patch adds common register access for 24xx and 34xx power
and clock management in order to share code between 24xx and 34xx.

Only change USB platform init code to use new register access, other
access will be changed in later patches.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

3 files changed, 267 insertions, 4 deletions

diff --git a/include/asm-arm/arch-omap/control.h b/include/asm-arm/arch-omap/control.h
new file mode 100644
index 000000000000..9944bb5d5330
--- /dev/null
+++ b/include/asm-arm/arch-omap/control.h
@@ -0,0 +1,191 @@
+#ifndef __ASM_ARCH_CONTROL_H
+#define __ASM_ARCH_CONTROL_H
+
+/*
+ * include/asm-arm/arch-omap/control.h
+ *
+ * OMAP2/3 System Control Module definitions
+ *
+ * Copyright (C) 2007 Texas Instruments, Inc.
+ * Copyright (C) 2007 Nokia Corporation
+ *
+ * Written by Paul Walmsley
+ *
+ * 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.
+ */
+
+#include <asm/arch/io.h>
+
+#define OMAP242X_CTRL_REGADDR(reg)                                      \
+        (void __iomem *)IO_ADDRESS(OMAP242X_CTRL_BASE + (reg))
+#define OMAP243X_CTRL_REGADDR(reg)                                      \
+        (void __iomem *)IO_ADDRESS(OMAP243X_CTRL_BASE + (reg))
+#define OMAP343X_CTRL_REGADDR(reg)                                      \
+        (void __iomem *)IO_ADDRESS(OMAP343X_CTRL_BASE + (reg))
+
+/*
+ * As elsewhere, the "OMAP2_" prefix indicates that the macro is valid for
+ * OMAP24XX and OMAP34XX.
+ */
+
+/* Control submodule offsets */
+
+#define OMAP2_CONTROL_INTERFACE         0x000
+#define OMAP2_CONTROL_PADCONFS          0x030
+#define OMAP2_CONTROL_GENERAL           0x270
+#define OMAP343X_CONTROL_MEM_WKUP       0x600
+#define OMAP343X_CONTROL_PADCONFS_WKUP  0xa00
+#define OMAP343X_CONTROL_GENERAL_WKUP   0xa60
+
+/* Control register offsets - read/write with omap_ctrl_{read,write}{bwl}() */
+
+#define OMAP2_CONTROL_SYSCONFIG         (OMAP2_CONTROL_INTERFACE + 0x10)
+
+/* CONTROL_GENERAL register offsets common to OMAP2 & 3 */
+#define OMAP2_CONTROL_DEVCONF0          (OMAP2_CONTROL_GENERAL + 0x0004)
+#define OMAP2_CONTROL_MSUSPENDMUX_0     (OMAP2_CONTROL_GENERAL + 0x0020)
+#define OMAP2_CONTROL_MSUSPENDMUX_1     (OMAP2_CONTROL_GENERAL + 0x0024)
+#define OMAP2_CONTROL_MSUSPENDMUX_2     (OMAP2_CONTROL_GENERAL + 0x0028)
+#define OMAP2_CONTROL_MSUSPENDMUX_3     (OMAP2_CONTROL_GENERAL + 0x002c)
+#define OMAP2_CONTROL_MSUSPENDMUX_4     (OMAP2_CONTROL_GENERAL + 0x0030)
+#define OMAP2_CONTROL_MSUSPENDMUX_5     (OMAP2_CONTROL_GENERAL + 0x0034)
+#define OMAP2_CONTROL_SEC_CTRL          (OMAP2_CONTROL_GENERAL + 0x0040)
+#define OMAP2_CONTROL_RPUB_KEY_H_0      (OMAP2_CONTROL_GENERAL + 0x0090)
+#define OMAP2_CONTROL_RPUB_KEY_H_1      (OMAP2_CONTROL_GENERAL + 0x0094)
+#define OMAP2_CONTROL_RPUB_KEY_H_2      (OMAP2_CONTROL_GENERAL + 0x0098)
+#define OMAP2_CONTROL_RPUB_KEY_H_3      (OMAP2_CONTROL_GENERAL + 0x009c)
+
+/* 242x-only CONTROL_GENERAL register offsets */
+#define OMAP242X_CONTROL_DEVCONF        OMAP2_CONTROL_DEVCONF0 /* match TRM */
+#define OMAP242X_CONTROL_OCM_RAM_PERM   (OMAP2_CONTROL_GENERAL + 0x0068)
+
+/* 243x-only CONTROL_GENERAL register offsets */
+/* CONTROL_IVA2_BOOT{ADDR,MOD} are at the same place on 343x - noted below */
+#define OMAP243X_CONTROL_DEVCONF1       (OMAP2_CONTROL_GENERAL + 0x0078)
+#define OMAP243X_CONTROL_CSIRXFE        (OMAP2_CONTROL_GENERAL + 0x007c)
+#define OMAP243X_CONTROL_IVA2_BOOTADDR  (OMAP2_CONTROL_GENERAL + 0x0190)
+#define OMAP243X_CONTROL_IVA2_BOOTMOD   (OMAP2_CONTROL_GENERAL + 0x0194)
+#define OMAP243X_CONTROL_IVA2_GEMCFG    (OMAP2_CONTROL_GENERAL + 0x0198)
+
+/* 24xx-only CONTROL_GENERAL register offsets */
+#define OMAP24XX_CONTROL_DEBOBS         (OMAP2_CONTROL_GENERAL + 0x0000)
+#define OMAP24XX_CONTROL_EMU_SUPPORT    (OMAP2_CONTROL_GENERAL + 0x0008)
+#define OMAP24XX_CONTROL_SEC_TEST       (OMAP2_CONTROL_GENERAL + 0x0044)
+#define OMAP24XX_CONTROL_PSA_CTRL       (OMAP2_CONTROL_GENERAL + 0x0048)
+#define OMAP24XX_CONTROL_PSA_CMD        (OMAP2_CONTROL_GENERAL + 0x004c)
+#define OMAP24XX_CONTROL_PSA_VALUE      (OMAP2_CONTROL_GENERAL + 0x0050)
+#define OMAP24XX_CONTROL_SEC_EMU        (OMAP2_CONTROL_GENERAL + 0x0060)
+#define OMAP24XX_CONTROL_SEC_TAP        (OMAP2_CONTROL_GENERAL + 0x0064)
+#define OMAP24XX_CONTROL_OCM_PUB_RAM_ADD        (OMAP2_CONTROL_GENERAL + 0x006c)
+#define OMAP24XX_CONTROL_EXT_SEC_RAM_START_ADD  (OMAP2_CONTROL_GENERAL + 0x0070)
+#define OMAP24XX_CONTROL_EXT_SEC_RAM_STOP_ADD   (OMAP2_CONTROL_GENERAL + 0x0074
+#define OMAP24XX_CONTROL_SEC_STATUS             (OMAP2_CONTROL_GENERAL + 0x0080)
+#define OMAP24XX_CONTROL_SEC_ERR_STATUS         (OMAP2_CONTROL_GENERAL + 0x0084)
+#define OMAP24XX_CONTROL_STATUS                 (OMAP2_CONTROL_GENERAL + 0x0088)
+#define OMAP24XX_CONTROL_GENERAL_PURPOSE_STATUS (OMAP2_CONTROL_GENERAL + 0x008c)
+#define OMAP24XX_CONTROL_RAND_KEY_0     (OMAP2_CONTROL_GENERAL + 0x00a0)
+#define OMAP24XX_CONTROL_RAND_KEY_1     (OMAP2_CONTROL_GENERAL + 0x00a4)
+#define OMAP24XX_CONTROL_RAND_KEY_2     (OMAP2_CONTROL_GENERAL + 0x00a8)
+#define OMAP24XX_CONTROL_RAND_KEY_3     (OMAP2_CONTROL_GENERAL + 0x00ac)
+#define OMAP24XX_CONTROL_CUST_KEY_0     (OMAP2_CONTROL_GENERAL + 0x00b0)
+#define OMAP24XX_CONTROL_CUST_KEY_1     (OMAP2_CONTROL_GENERAL + 0x00b4)
+#define OMAP24XX_CONTROL_TEST_KEY_0     (OMAP2_CONTROL_GENERAL + 0x00c0)
+#define OMAP24XX_CONTROL_TEST_KEY_1     (OMAP2_CONTROL_GENERAL + 0x00c4)
+#define OMAP24XX_CONTROL_TEST_KEY_2     (OMAP2_CONTROL_GENERAL + 0x00c8)
+#define OMAP24XX_CONTROL_TEST_KEY_3     (OMAP2_CONTROL_GENERAL + 0x00cc)
+#define OMAP24XX_CONTROL_TEST_KEY_4     (OMAP2_CONTROL_GENERAL + 0x00d0)
+#define OMAP24XX_CONTROL_TEST_KEY_5     (OMAP2_CONTROL_GENERAL + 0x00d4)
+#define OMAP24XX_CONTROL_TEST_KEY_6     (OMAP2_CONTROL_GENERAL + 0x00d8)
+#define OMAP24XX_CONTROL_TEST_KEY_7     (OMAP2_CONTROL_GENERAL + 0x00dc)
+#define OMAP24XX_CONTROL_TEST_KEY_8     (OMAP2_CONTROL_GENERAL + 0x00e0)
+#define OMAP24XX_CONTROL_TEST_KEY_9     (OMAP2_CONTROL_GENERAL + 0x00e4)
+
+/* 34xx-only CONTROL_GENERAL register offsets */
+#define OMAP343X_CONTROL_PADCONF_OFF    (OMAP2_CONTROL_GENERAL + 0x0000)
+#define OMAP343X_CONTROL_MEM_DFTRW0     (OMAP2_CONTROL_GENERAL + 0x0008)
+#define OMAP343X_CONTROL_MEM_DFTRW1     (OMAP2_CONTROL_GENERAL + 0x000c)
+#define OMAP343X_CONTROL_DEVCONF1       (OMAP2_CONTROL_GENERAL + 0x0068)
+#define OMAP343X_CONTROL_CSIRXFE                (OMAP2_CONTROL_GENERAL + 0x006c)
+#define OMAP343X_CONTROL_SEC_STATUS             (OMAP2_CONTROL_GENERAL + 0x0070)
+#define OMAP343X_CONTROL_SEC_ERR_STATUS         (OMAP2_CONTROL_GENERAL + 0x0074)
+#define OMAP343X_CONTROL_SEC_ERR_STATUS_DEBUG   (OMAP2_CONTROL_GENERAL + 0x0078)
+#define OMAP343X_CONTROL_STATUS                 (OMAP2_CONTROL_GENERAL + 0x0080)
+#define OMAP343X_CONTROL_GENERAL_PURPOSE_STATUS (OMAP2_CONTROL_GENERAL + 0x0084)
+#define OMAP343X_CONTROL_RPUB_KEY_H_4   (OMAP2_CONTROL_GENERAL + 0x00a0)
+#define OMAP343X_CONTROL_RAND_KEY_0     (OMAP2_CONTROL_GENERAL + 0x00a8)
+#define OMAP343X_CONTROL_RAND_KEY_1     (OMAP2_CONTROL_GENERAL + 0x00ac)
+#define OMAP343X_CONTROL_RAND_KEY_2     (OMAP2_CONTROL_GENERAL + 0x00b0)
+#define OMAP343X_CONTROL_RAND_KEY_3     (OMAP2_CONTROL_GENERAL + 0x00b4)
+#define OMAP343X_CONTROL_TEST_KEY_0     (OMAP2_CONTROL_GENERAL + 0x00c8)
+#define OMAP343X_CONTROL_TEST_KEY_1     (OMAP2_CONTROL_GENERAL + 0x00cc)
+#define OMAP343X_CONTROL_TEST_KEY_2     (OMAP2_CONTROL_GENERAL + 0x00d0)
+#define OMAP343X_CONTROL_TEST_KEY_3     (OMAP2_CONTROL_GENERAL + 0x00d4)
+#define OMAP343X_CONTROL_TEST_KEY_4     (OMAP2_CONTROL_GENERAL + 0x00d8)
+#define OMAP343X_CONTROL_TEST_KEY_5     (OMAP2_CONTROL_GENERAL + 0x00dc)
+#define OMAP343X_CONTROL_TEST_KEY_6     (OMAP2_CONTROL_GENERAL + 0x00e0)
+#define OMAP343X_CONTROL_TEST_KEY_7     (OMAP2_CONTROL_GENERAL + 0x00e4)
+#define OMAP343X_CONTROL_TEST_KEY_8     (OMAP2_CONTROL_GENERAL + 0x00e8)
+#define OMAP343X_CONTROL_TEST_KEY_9     (OMAP2_CONTROL_GENERAL + 0x00ec)
+#define OMAP343X_CONTROL_TEST_KEY_10    (OMAP2_CONTROL_GENERAL + 0x00f0)
+#define OMAP343X_CONTROL_TEST_KEY_11    (OMAP2_CONTROL_GENERAL + 0x00f4)
+#define OMAP343X_CONTROL_TEST_KEY_12    (OMAP2_CONTROL_GENERAL + 0x00f8)
+#define OMAP343X_CONTROL_TEST_KEY_13    (OMAP2_CONTROL_GENERAL + 0x00fc)
+#define OMAP343X_CONTROL_IVA2_BOOTADDR  (OMAP2_CONTROL_GENERAL + 0x0190)
+#define OMAP343X_CONTROL_IVA2_BOOTMOD   (OMAP2_CONTROL_GENERAL + 0x0194)
+
+/*
+ * REVISIT: This list of registers is not comprehensive - there are more
+ * that should be added.
+ */
+
+/*
+ * Control module register bit defines - these should eventually go into
+ * their own regbits file.  Some of these will be complicated, depending
+ * on the device type (general-purpose, emulator, test, secure, bad, other)
+ * and the security mode (secure, non-secure, don't care)
+ */
+/* CONTROL_DEVCONF0 bits */
+#define OMAP24XX_USBSTANDBYCTRL         (1 << 15)
+#define OMAP2_MCBSP2_CLKS_MASK          (1 << 6)
+#define OMAP2_MCBSP1_CLKS_MASK          (1 << 2)
+
+/* CONTROL_DEVCONF1 bits */
+#define OMAP2_MCBSP5_CLKS_MASK          (1 << 4) /* > 242x */
+#define OMAP2_MCBSP4_CLKS_MASK          (1 << 2) /* > 242x */
+#define OMAP2_MCBSP3_CLKS_MASK          (1 << 0) /* > 242x */
+
+/* CONTROL_STATUS bits */
+#define OMAP2_DEVICETYPE_MASK           (0x7 << 8)
+#define OMAP2_SYSBOOT_5_MASK            (1 << 5)
+#define OMAP2_SYSBOOT_4_MASK            (1 << 4)
+#define OMAP2_SYSBOOT_3_MASK            (1 << 3)
+#define OMAP2_SYSBOOT_2_MASK            (1 << 2)
+#define OMAP2_SYSBOOT_1_MASK            (1 << 1)
+#define OMAP2_SYSBOOT_0_MASK            (1 << 0)
+
+#ifndef __ASSEMBLY__
+#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
+extern void omap_ctrl_base_set(u32 base);
+extern u32 omap_ctrl_base_get(void);
+extern u8 omap_ctrl_readb(u16 offset);
+extern u16 omap_ctrl_readw(u16 offset);
+extern u32 omap_ctrl_readl(u16 offset);
+extern void omap_ctrl_writeb(u8 val, u16 offset);
+extern void omap_ctrl_writew(u16 val, u16 offset);
+extern void omap_ctrl_writel(u32 val, u16 offset);
+#else
+#define omap_ctrl_base_set(x)           WARN_ON(1)
+#define omap_ctrl_base_get()            0
+#define omap_ctrl_readb(x)              0
+#define omap_ctrl_readw(x)              0
+#define omap_ctrl_readl(x)              0
+#define omap_ctrl_writeb(x, y)          WARN_ON(1)
+#define omap_ctrl_writew(x, y)          WARN_ON(1)
+#define omap_ctrl_writel(x, y)          WARN_ON(1)
+#endif
+#endif  /* __ASSEMBLY__ */
+
+#endif /* __ASM_ARCH_CONTROL_H */
+
diff --git a/include/asm-arm/arch-omap/sdrc.h b/include/asm-arm/arch-omap/sdrc.h
new file mode 100644
index 000000000000..673b3965befc
--- /dev/null
+++ b/include/asm-arm/arch-omap/sdrc.h
@@ -0,0 +1,75 @@
+#ifndef ____ASM_ARCH_SDRC_H
+#define ____ASM_ARCH_SDRC_H
+
+/*
+ * OMAP2/3 SDRC/SMS register definitions
+ *
+ * Copyright (C) 2007 Texas Instruments, Inc.
+ * Copyright (C) 2007 Nokia Corporation
+ *
+ * Written by Paul Walmsley
+ *
+ * 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.
+ */
+
+#include <asm/arch/io.h>
+
+/* SDRC register offsets - read/write with sdrc_{read,write}_reg() */
+
+#define SDRC_SYSCONFIG          0x010
+#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_MR_0               0x084
+#define SDRC_RFR_CTRL_0         0x0a4
+
+/*
+ * 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 *)IO_ADDRESS(OMAP2420_SMS_BASE + reg)
+#define OMAP243X_SMS_REGADDR(reg)       (void __iomem *)IO_ADDRESS(OMAP243X_SMS_BASE + reg)
+#define OMAP343X_SMS_REGADDR(reg)       (void __iomem *)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/include/asm-arm/arch-omap/usb.h b/include/asm-arm/arch-omap/usb.h
index 99ae9eabaf71..2147d18aaeae 100644
--- a/include/asm-arm/arch-omap/usb.h
+++ b/include/asm-arm/arch-omap/usb.h
@@ -132,14 +132,11 @@
 #       define  CONF_USB_PWRDN_DP_R     (1 << 1)
 
 /* OMAP2 */
-#define CONTROL_DEVCONF_REG             __REG32(L4_24XX_BASE + 0x0274)
 #       define  USB_UNIDIR                      0x0
 #       define  USB_UNIDIR_TLL                  0x1
 #       define  USB_BIDIR                       0x2
 #       define  USB_BIDIR_TLL                   0x3
-#       define  USBT0WRMODEI(x)         ((x) << 22)
-#       define  USBT1WRMODEI(x)         ((x) << 20)
-#       define  USBT2WRMODEI(x)         ((x) << 18)
+#       define  USBTXWRMODEI(port, x)   ((x) << (22 - (port * 2)))
 #       define  USBT2TLL5PI             (1 << 17)
 #       define  USB0PUENACTLOI          (1 << 16)
 #       define  USBSTANDBYCTRL          (1 << 15)