ARM: OMAP2+: PRM: split PRM functions into OMAP2, OMAP3-specific files

Move OMAP3xxx-specific PRM functions & macros into prm3xxx.[ch] and
OMAP2xxx-specific macros into prm2xxx.h.  (prm2xxx.c will be created
by a subsequent patch when it's needed.)  Move basic PRM register
access functions into static inline functions in prm2xxx_3xxx.h, leaving
only OMAP2/3 hardreset functions in prm2xxx_3xxx.c.

Also clarify the initcall function naming to reinforce that this code
is specifically for the PRM IP block.

This is in preparation for the upcoming powerdomain series and the
upcoming move of this code to drivers/.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Reviewed-by: Russ Dill <Russ.Dill@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>

1 files changed, 158 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/prm3xxx.h b/arch/arm/mach-omap2/prm3xxx.h
new file mode 100644
index 000000000000..6821e8321610
--- /dev/null
+++ b/arch/arm/mach-omap2/prm3xxx.h
@@ -0,0 +1,158 @@
+/*
+ * OMAP3xxx Power/Reset Management (PRM) register definitions
+ *
+ * Copyright (C) 2007-2009, 2011-2012 Texas Instruments, Inc.
+ * Copyright (C) 2008-2010 Nokia Corporation
+ * 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.
+ *
+ * The PRM hardware modules on the OMAP2/3 are quite similar to each
+ * other.  The PRM on OMAP4 has a new register layout, and is handled
+ * in a separate file.
+ */
+#ifndef __ARCH_ARM_MACH_OMAP2_PRM3XXX_H
+#define __ARCH_ARM_MACH_OMAP2_PRM3XXX_H
+
+#include "prcm-common.h"
+#include "prm.h"
+#include "prm2xxx_3xxx.h"
+
+#define OMAP34XX_PRM_REGADDR(module, reg)                               \
+                OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE + (module) + (reg))
+
+
+/*
+ * OMAP3-specific global PRM registers
+ * Use __raw_{read,write}l() with these registers.
+ *
+ * With a few exceptions, these are the register names beginning with
+ * PRM_* on 34xx.  (The exceptions are the IRQSTATUS and IRQENABLE
+ * bits.)
+ */
+
+#define OMAP3_PRM_REVISION_OFFSET       0x0004
+#define OMAP3430_PRM_REVISION           OMAP34XX_PRM_REGADDR(OCP_MOD, 0x0004)
+#define OMAP3_PRM_SYSCONFIG_OFFSET      0x0014
+#define OMAP3430_PRM_SYSCONFIG          OMAP34XX_PRM_REGADDR(OCP_MOD, 0x0014)
+
+#define OMAP3_PRM_IRQSTATUS_MPU_OFFSET  0x0018
+#define OMAP3430_PRM_IRQSTATUS_MPU      OMAP34XX_PRM_REGADDR(OCP_MOD, 0x0018)
+#define OMAP3_PRM_IRQENABLE_MPU_OFFSET  0x001c
+#define OMAP3430_PRM_IRQENABLE_MPU      OMAP34XX_PRM_REGADDR(OCP_MOD, 0x001c)
+
+
+#define OMAP3_PRM_VC_SMPS_SA_OFFSET     0x0020
+#define OMAP3430_PRM_VC_SMPS_SA         OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0020)
+#define OMAP3_PRM_VC_SMPS_VOL_RA_OFFSET 0x0024
+#define OMAP3430_PRM_VC_SMPS_VOL_RA     OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0024)
+#define OMAP3_PRM_VC_SMPS_CMD_RA_OFFSET 0x0028
+#define OMAP3430_PRM_VC_SMPS_CMD_RA     OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0028)
+#define OMAP3_PRM_VC_CMD_VAL_0_OFFSET   0x002c
+#define OMAP3430_PRM_VC_CMD_VAL_0       OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x002c)
+#define OMAP3_PRM_VC_CMD_VAL_1_OFFSET   0x0030
+#define OMAP3430_PRM_VC_CMD_VAL_1       OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0030)
+#define OMAP3_PRM_VC_CH_CONF_OFFSET     0x0034
+#define OMAP3430_PRM_VC_CH_CONF         OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0034)
+#define OMAP3_PRM_VC_I2C_CFG_OFFSET     0x0038
+#define OMAP3430_PRM_VC_I2C_CFG         OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0038)
+#define OMAP3_PRM_VC_BYPASS_VAL_OFFSET  0x003c
+#define OMAP3430_PRM_VC_BYPASS_VAL      OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x003c)
+#define OMAP3_PRM_RSTCTRL_OFFSET        0x0050
+#define OMAP3430_PRM_RSTCTRL            OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0050)
+#define OMAP3_PRM_RSTTIME_OFFSET        0x0054
+#define OMAP3430_PRM_RSTTIME            OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0054)
+#define OMAP3_PRM_RSTST_OFFSET  0x0058
+#define OMAP3430_PRM_RSTST              OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0058)
+#define OMAP3_PRM_VOLTCTRL_OFFSET       0x0060
+#define OMAP3430_PRM_VOLTCTRL           OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0060)
+#define OMAP3_PRM_SRAM_PCHARGE_OFFSET   0x0064
+#define OMAP3430_PRM_SRAM_PCHARGE       OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0064)
+#define OMAP3_PRM_CLKSRC_CTRL_OFFSET    0x0070
+#define OMAP3430_PRM_CLKSRC_CTRL        OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0070)
+#define OMAP3_PRM_VOLTSETUP1_OFFSET     0x0090
+#define OMAP3430_PRM_VOLTSETUP1         OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0090)
+#define OMAP3_PRM_VOLTOFFSET_OFFSET     0x0094
+#define OMAP3430_PRM_VOLTOFFSET         OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0094)
+#define OMAP3_PRM_CLKSETUP_OFFSET       0x0098
+#define OMAP3430_PRM_CLKSETUP           OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0098)
+#define OMAP3_PRM_POLCTRL_OFFSET        0x009c
+#define OMAP3430_PRM_POLCTRL            OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x009c)
+#define OMAP3_PRM_VOLTSETUP2_OFFSET     0x00a0
+#define OMAP3430_PRM_VOLTSETUP2         OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00a0)
+#define OMAP3_PRM_VP1_CONFIG_OFFSET     0x00b0
+#define OMAP3430_PRM_VP1_CONFIG         OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00b0)
+#define OMAP3_PRM_VP1_VSTEPMIN_OFFSET   0x00b4
+#define OMAP3430_PRM_VP1_VSTEPMIN       OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00b4)
+#define OMAP3_PRM_VP1_VSTEPMAX_OFFSET   0x00b8
+#define OMAP3430_PRM_VP1_VSTEPMAX       OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00b8)
+#define OMAP3_PRM_VP1_VLIMITTO_OFFSET   0x00bc
+#define OMAP3430_PRM_VP1_VLIMITTO       OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00bc)
+#define OMAP3_PRM_VP1_VOLTAGE_OFFSET    0x00c0
+#define OMAP3430_PRM_VP1_VOLTAGE        OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00c0)
+#define OMAP3_PRM_VP1_STATUS_OFFSET     0x00c4
+#define OMAP3430_PRM_VP1_STATUS         OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00c4)
+#define OMAP3_PRM_VP2_CONFIG_OFFSET     0x00d0
+#define OMAP3430_PRM_VP2_CONFIG         OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00d0)
+#define OMAP3_PRM_VP2_VSTEPMIN_OFFSET   0x00d4
+#define OMAP3430_PRM_VP2_VSTEPMIN       OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00d4)
+#define OMAP3_PRM_VP2_VSTEPMAX_OFFSET   0x00d8
+#define OMAP3430_PRM_VP2_VSTEPMAX       OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00d8)
+#define OMAP3_PRM_VP2_VLIMITTO_OFFSET   0x00dc
+#define OMAP3430_PRM_VP2_VLIMITTO       OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00dc)
+#define OMAP3_PRM_VP2_VOLTAGE_OFFSET    0x00e0
+#define OMAP3430_PRM_VP2_VOLTAGE        OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00e0)
+#define OMAP3_PRM_VP2_STATUS_OFFSET     0x00e4
+#define OMAP3430_PRM_VP2_STATUS         OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00e4)
+
+#define OMAP3_PRM_CLKSEL_OFFSET 0x0040
+#define OMAP3430_PRM_CLKSEL             OMAP34XX_PRM_REGADDR(OMAP3430_CCR_MOD, 0x0040)
+#define OMAP3_PRM_CLKOUT_CTRL_OFFSET    0x0070
+#define OMAP3430_PRM_CLKOUT_CTRL        OMAP34XX_PRM_REGADDR(OMAP3430_CCR_MOD, 0x0070)
+
+/* OMAP3 specific register offsets */
+#define OMAP3430ES2_PM_WKEN3                            0x00f0
+#define OMAP3430ES2_PM_WKST3                            0x00b8
+
+#define OMAP3430_PM_MPUGRPSEL                           0x00a4
+#define OMAP3430_PM_MPUGRPSEL1                          OMAP3430_PM_MPUGRPSEL
+#define OMAP3430ES2_PM_MPUGRPSEL3                       0x00f8
+
+#define OMAP3430_PM_IVAGRPSEL                           0x00a8
+#define OMAP3430_PM_IVAGRPSEL1                          OMAP3430_PM_IVAGRPSEL
+#define OMAP3430ES2_PM_IVAGRPSEL3                       0x00f4
+
+#define OMAP3430_PM_PREPWSTST                           0x00e8
+
+#define OMAP3430_PRM_IRQSTATUS_IVA2                     0x00f8
+#define OMAP3430_PRM_IRQENABLE_IVA2                     0x00fc
+
+
+#ifndef __ASSEMBLER__
+
+/* OMAP3-specific VP functions */
+u32 omap3_prm_vp_check_txdone(u8 vp_id);
+void omap3_prm_vp_clear_txdone(u8 vp_id);
+
+/*
+ * OMAP3 access functions for voltage controller (VC) and
+ * voltage proccessor (VP) in the PRM.
+ */
+extern u32 omap3_prm_vcvp_read(u8 offset);
+extern void omap3_prm_vcvp_write(u32 val, u8 offset);
+extern u32 omap3_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
+
+extern void omap3xxx_prm_reconfigure_io_chain(void);
+
+/* PRM interrupt-related functions */
+extern void omap3xxx_prm_read_pending_irqs(unsigned long *events);
+extern void omap3xxx_prm_ocp_barrier(void);
+extern void omap3xxx_prm_save_and_clear_irqen(u32 *saved_mask);
+extern void omap3xxx_prm_restore_irqen(u32 *saved_mask);
+
+#endif /* __ASSEMBLER */
+
+
+#endif