OMAP2/3: PRCM: split OMAP2/3-specific PRCM code into OMAP2/3-specific files

In preparation for adding OMAP4-specific PRCM accessor/mutator
functions, split the existing OMAP2/3 PRCM code into OMAP2/3-specific
files.  Most of what was in mach-omap2/{cm,prm}.{c,h} has now been
moved into mach-omap2/{cm,prm}2xxx_3xxx.{c,h}, since it was
OMAP2xxx/3xxx-specific.

This process also requires the #includes in each of these files to be
changed to reference the new file name.  As part of doing so, add some
comments into plat-omap/sram.c and plat-omap/mcbsp.c, which use
"sideways includes", to indicate that these users of the PRM/CM includes
should not be doing so.

Thanks to Felipe Contreras <felipe.contreras@gmail.com> for comments on this
patch.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Jarkko Nikula <jhnikula@gmail.com>
Cc: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Cc: Omar Ramirez Luna <omar.ramirez@ti.com>
Acked-by: Omar Ramirez Luna <omar.ramirez@ti.com>
Cc: Felipe Contreras <felipe.contreras@gmail.com>
Acked-by: Felipe Contreras <felipe.contreras@gmail.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Reviewed-by: Kevin Hilman <khilman@deeprootsystems.com>
Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
Tested-by: Rajendra Nayak <rnayak@ti.com>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>

1 files changed, 131 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/cm2xxx_3xxx.h b/arch/arm/mach-omap2/cm2xxx_3xxx.h
new file mode 100644
index 000000000000..5e572112be06
--- /dev/null
+++ b/arch/arm/mach-omap2/cm2xxx_3xxx.h
@@ -0,0 +1,131 @@
+/*
+ * OMAP2/3 Clock Management (CM) register definitions
+ *
+ * Copyright (C) 2007-2009 Texas Instruments, Inc.
+ * Copyright (C) 2007-2010 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 CM hardware modules on the OMAP2/3 are quite similar to each
+ * other.  The CM modules/instances on OMAP4 are quite different, so
+ * they are handled in a separate file.
+ */
+#ifndef __ARCH_ASM_MACH_OMAP2_CM2XXX_3XXX_H
+#define __ARCH_ASM_MACH_OMAP2_CM2XXX_3XXX_H
+
+#include "prcm-common.h"
+
+#define OMAP2420_CM_REGADDR(module, reg)                                \
+                        OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE + (module) + (reg))
+#define OMAP2430_CM_REGADDR(module, reg)                                \
+                        OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE + (module) + (reg))
+#define OMAP34XX_CM_REGADDR(module, reg)                                \
+                        OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE + (module) + (reg))
+
+
+/*
+ * OMAP3-specific global CM registers
+ * Use cm_{read,write}_reg() with these registers.
+ * These registers appear once per CM module.
+ */
+
+#define OMAP3430_CM_REVISION            OMAP34XX_CM_REGADDR(OCP_MOD, 0x0000)
+#define OMAP3430_CM_SYSCONFIG           OMAP34XX_CM_REGADDR(OCP_MOD, 0x0010)
+#define OMAP3430_CM_POLCTRL             OMAP34XX_CM_REGADDR(OCP_MOD, 0x009c)
+
+#define OMAP3_CM_CLKOUT_CTRL_OFFSET     0x0070
+#define OMAP3430_CM_CLKOUT_CTRL         OMAP_CM_REGADDR(OMAP3430_CCR_MOD, 0x0070)
+
+/*
+ * Module specific CM register offsets from CM_BASE + domain offset
+ * Use cm_{read,write}_mod_reg() with these registers.
+ * These register offsets generally appear in more than one PRCM submodule.
+ */
+
+/* Common between OMAP2 and OMAP3 */
+
+#define CM_FCLKEN                                       0x0000
+#define CM_FCLKEN1                                      CM_FCLKEN
+#define CM_CLKEN                                        CM_FCLKEN
+#define CM_ICLKEN                                       0x0010
+#define CM_ICLKEN1                                      CM_ICLKEN
+#define CM_ICLKEN2                                      0x0014
+#define CM_ICLKEN3                                      0x0018
+#define CM_IDLEST                                       0x0020
+#define CM_IDLEST1                                      CM_IDLEST
+#define CM_IDLEST2                                      0x0024
+#define CM_AUTOIDLE                                     0x0030
+#define CM_AUTOIDLE1                                    CM_AUTOIDLE
+#define CM_AUTOIDLE2                                    0x0034
+#define CM_AUTOIDLE3                                    0x0038
+#define CM_CLKSEL                                       0x0040
+#define CM_CLKSEL1                                      CM_CLKSEL
+#define CM_CLKSEL2                                      0x0044
+#define OMAP2_CM_CLKSTCTRL                              0x0048
+
+/* OMAP2-specific register offsets */
+
+#define OMAP24XX_CM_FCLKEN2                             0x0004
+#define OMAP24XX_CM_ICLKEN4                             0x001c
+#define OMAP24XX_CM_AUTOIDLE4                           0x003c
+
+#define OMAP2430_CM_IDLEST3                             0x0028
+
+/* OMAP3-specific register offsets */
+
+#define OMAP3430_CM_CLKEN_PLL                           0x0004
+#define OMAP3430ES2_CM_CLKEN2                           0x0004
+#define OMAP3430ES2_CM_FCLKEN3                          0x0008
+#define OMAP3430_CM_IDLEST_PLL                          CM_IDLEST2
+#define OMAP3430_CM_AUTOIDLE_PLL                        CM_AUTOIDLE2
+#define OMAP3430ES2_CM_AUTOIDLE2_PLL                    CM_AUTOIDLE2
+#define OMAP3430_CM_CLKSEL1                             CM_CLKSEL
+#define OMAP3430_CM_CLKSEL1_PLL                         CM_CLKSEL
+#define OMAP3430_CM_CLKSEL2_PLL                         CM_CLKSEL2
+#define OMAP3430_CM_SLEEPDEP                            CM_CLKSEL2
+#define OMAP3430_CM_CLKSEL3                             OMAP2_CM_CLKSTCTRL
+#define OMAP3430_CM_CLKSTST                             0x004c
+#define OMAP3430ES2_CM_CLKSEL4                          0x004c
+#define OMAP3430ES2_CM_CLKSEL5                          0x0050
+#define OMAP3430_CM_CLKSEL2_EMU                         0x0050
+#define OMAP3430_CM_CLKSEL3_EMU                         0x0054
+
+
+/* CM_IDLEST bit field values to indicate deasserted IdleReq */
+
+#define OMAP24XX_CM_IDLEST_VAL                          0
+#define OMAP34XX_CM_IDLEST_VAL                          1
+
+
+/* Clock management domain register get/set */
+
+#ifndef __ASSEMBLER__
+
+extern u32 cm_read_mod_reg(s16 module, u16 idx);
+extern void cm_write_mod_reg(u32 val, s16 module, u16 idx);
+extern u32 cm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx);
+
+extern int omap2_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id,
+                                      u8 idlest_shift);
+extern u32 cm_set_mod_reg_bits(u32 bits, s16 module, s16 idx);
+extern u32 cm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx);
+
+#endif
+
+/* CM register bits shared between 24XX and 3430 */
+
+/* CM_CLKSEL_GFX */
+#define OMAP_CLKSEL_GFX_SHIFT                           0
+#define OMAP_CLKSEL_GFX_MASK                            (0x7 << 0)
+
+/* CM_ICLKEN_GFX */
+#define OMAP_EN_GFX_SHIFT                               0
+#define OMAP_EN_GFX_MASK                                (1 << 0)
+
+/* CM_IDLEST_GFX */
+#define OMAP_ST_GFX_MASK                                (1 << 0)
+
+#endif