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-rw-r--r--arch/arm/mach-omap2/Makefile3
-rw-r--r--arch/arm/mach-omap2/omap_hwmod.c100
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_common_data.c44
-rw-r--r--arch/arm/plat-omap/include/plat/omap_hwmod.h73
4 files changed, 191 insertions, 29 deletions
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index dfc49a0c692..3ebd0b6525d 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -5,7 +5,8 @@
# Common support
obj-y := id.o io.o control.o mux.o devices.o serial.o gpmc.o timer-gp.o
-omap-2-3-common = irq.o sdrc.o omap_hwmod.o
+omap-2-3-common = irq.o sdrc.o omap_hwmod.o \
+ omap_hwmod_common_data.o
omap-3-4-common = dpll3xxx.o
prcm-common = prcm.o powerdomain.o
clock-common = clock.o clock_common_data.o \
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 70912d1c71e..fb11ec176d5 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -137,12 +137,24 @@ static void _write_sysconfig(u32 v, struct omap_hwmod *oh)
static int _set_master_standbymode(struct omap_hwmod *oh, u8 standbymode,
u32 *v)
{
+ u32 mstandby_mask;
+ u8 mstandby_shift;
+
if (!oh->sysconfig ||
!(oh->sysconfig->sysc_flags & SYSC_HAS_MIDLEMODE))
return -EINVAL;
- *v &= ~SYSC_MIDLEMODE_MASK;
- *v |= __ffs(standbymode) << SYSC_MIDLEMODE_SHIFT;
+ if (!oh->sysconfig->sysc_fields) {
+ WARN(!oh->sysconfig->sysc_fields, "offset struct for "
+ "sysconfig not provided!\n");
+ return -EINVAL;
+ }
+
+ mstandby_shift = oh->sysconfig->sysc_fields->midle_shift;
+ mstandby_mask = (0x3 << mstandby_shift);
+
+ *v &= ~mstandby_mask;
+ *v |= __ffs(standbymode) << mstandby_shift;
return 0;
}
@@ -159,12 +171,24 @@ static int _set_master_standbymode(struct omap_hwmod *oh, u8 standbymode,
*/
static int _set_slave_idlemode(struct omap_hwmod *oh, u8 idlemode, u32 *v)
{
+ u32 sidle_mask;
+ u8 sidle_shift;
+
if (!oh->sysconfig ||
!(oh->sysconfig->sysc_flags & SYSC_HAS_SIDLEMODE))
return -EINVAL;
- *v &= ~SYSC_SIDLEMODE_MASK;
- *v |= __ffs(idlemode) << SYSC_SIDLEMODE_SHIFT;
+ if (!oh->sysconfig->sysc_fields) {
+ WARN(!oh->sysconfig->sysc_fields, "offset struct for "
+ "sysconfig not provided!\n");
+ return -EINVAL;
+ }
+
+ sidle_shift = oh->sysconfig->sysc_fields->sidle_shift;
+ sidle_mask = (0x3 << sidle_shift);
+
+ *v &= ~sidle_mask;
+ *v |= __ffs(idlemode) << sidle_shift;
return 0;
}
@@ -182,12 +206,24 @@ static int _set_slave_idlemode(struct omap_hwmod *oh, u8 idlemode, u32 *v)
*/
static int _set_clockactivity(struct omap_hwmod *oh, u8 clockact, u32 *v)
{
+ u32 clkact_mask;
+ u8 clkact_shift;
+
if (!oh->sysconfig ||
!(oh->sysconfig->sysc_flags & SYSC_HAS_CLOCKACTIVITY))
return -EINVAL;
- *v &= ~SYSC_CLOCKACTIVITY_MASK;
- *v |= clockact << SYSC_CLOCKACTIVITY_SHIFT;
+ if (!oh->sysconfig->sysc_fields) {
+ WARN(!oh->sysconfig->sysc_fields, "offset struct for "
+ "sysconfig not provided!\n");
+ return -EINVAL;
+ }
+
+ clkact_shift = oh->sysconfig->sysc_fields->clkact_shift;
+ clkact_mask = (0x3 << clkact_shift);
+
+ *v &= ~clkact_mask;
+ *v |= clockact << clkact_shift;
return 0;
}
@@ -202,11 +238,21 @@ static int _set_clockactivity(struct omap_hwmod *oh, u8 clockact, u32 *v)
*/
static int _set_softreset(struct omap_hwmod *oh, u32 *v)
{
+ u32 softrst_mask;
+
if (!oh->sysconfig ||
!(oh->sysconfig->sysc_flags & SYSC_HAS_SOFTRESET))
return -EINVAL;
- *v |= SYSC_SOFTRESET_MASK;
+ if (!oh->sysconfig->sysc_fields) {
+ WARN(!oh->sysconfig->sysc_fields, "offset struct for "
+ "sysconfig not provided!\n");
+ return -EINVAL;
+ }
+
+ softrst_mask = (0x1 << oh->sysconfig->sysc_fields->srst_shift);
+
+ *v |= softrst_mask;
return 0;
}
@@ -227,12 +273,24 @@ static int _set_softreset(struct omap_hwmod *oh, u32 *v)
static int _set_module_autoidle(struct omap_hwmod *oh, u8 autoidle,
u32 *v)
{
+ u32 autoidle_mask;
+ u8 autoidle_shift;
+
if (!oh->sysconfig ||
!(oh->sysconfig->sysc_flags & SYSC_HAS_AUTOIDLE))
return -EINVAL;
- *v &= ~SYSC_AUTOIDLE_MASK;
- *v |= autoidle << SYSC_AUTOIDLE_SHIFT;
+ if (!oh->sysconfig->sysc_fields) {
+ WARN(oh->sysconfig->sysc_fields, "offset struct for "
+ "sysconfig not provided!\n");
+ return -EINVAL;
+ }
+
+ autoidle_shift = oh->sysconfig->sysc_fields->autoidle_shift;
+ autoidle_mask = (0x3 << autoidle_shift);
+
+ *v &= ~autoidle_mask;
+ *v |= autoidle << autoidle_shift;
return 0;
}
@@ -246,14 +304,22 @@ static int _set_module_autoidle(struct omap_hwmod *oh, u8 autoidle,
*/
static int _enable_wakeup(struct omap_hwmod *oh)
{
- u32 v;
+ u32 v, wakeup_mask;
if (!oh->sysconfig ||
!(oh->sysconfig->sysc_flags & SYSC_HAS_ENAWAKEUP))
return -EINVAL;
+ if (!oh->sysconfig->sysc_fields) {
+ WARN(!oh->sysconfig->sysc_fields, "offset struct for "
+ "sysconfig not provided!\n");
+ return -EINVAL;
+ }
+
+ wakeup_mask = (0x1 << oh->sysconfig->sysc_fields->enwkup_shift);
+
v = oh->_sysc_cache;
- v |= SYSC_ENAWAKEUP_MASK;
+ v |= wakeup_mask;
_write_sysconfig(v, oh);
/* XXX test pwrdm_get_wken for this hwmod's subsystem */
@@ -272,14 +338,22 @@ static int _enable_wakeup(struct omap_hwmod *oh)
*/
static int _disable_wakeup(struct omap_hwmod *oh)
{
- u32 v;
+ u32 v, wakeup_mask;
if (!oh->sysconfig ||
!(oh->sysconfig->sysc_flags & SYSC_HAS_ENAWAKEUP))
return -EINVAL;
+ if (!oh->sysconfig->sysc_fields) {
+ WARN(!oh->sysconfig->sysc_fields, "offset struct for "
+ "sysconfig not provided!\n");
+ return -EINVAL;
+ }
+
+ wakeup_mask = (0x1 << oh->sysconfig->sysc_fields->enwkup_shift);
+
v = oh->_sysc_cache;
- v &= ~SYSC_ENAWAKEUP_MASK;
+ v &= ~wakeup_mask;
_write_sysconfig(v, oh);
/* XXX test pwrdm_get_wken for this hwmod's subsystem */
diff --git a/arch/arm/mach-omap2/omap_hwmod_common_data.c b/arch/arm/mach-omap2/omap_hwmod_common_data.c
new file mode 100644
index 00000000000..2567c6edc6a
--- /dev/null
+++ b/arch/arm/mach-omap2/omap_hwmod_common_data.c
@@ -0,0 +1,44 @@
+/*
+ * omap_hwmod common data structures
+ *
+ * Copyright (C) 2010 Texas Instruments, Inc.
+ * Thara Gopinath <thara@ti.com>
+ *
+ * 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.
+ *
+ * This data/structures are to be used while defining OMAP on-chip module
+ * data and their integration with other OMAP modules and Linux.
+ */
+
+#include <plat/omap_hwmod.h>
+
+/**
+ * struct omap_hwmod_sysc_type1 - TYPE1 sysconfig scheme.
+ *
+ * To be used by hwmod structure to specify the sysconfig offsets
+ * if the device ip is compliant with the original PRCM protocol
+ * defined for OMAP2420.
+ */
+struct omap_hwmod_sysc_fields omap_hwmod_sysc_type1 = {
+ .midle_shift = SYSC_TYPE1_MIDLEMODE_SHIFT,
+ .clkact_shift = SYSC_TYPE1_CLOCKACTIVITY_SHIFT,
+ .sidle_shift = SYSC_TYPE1_SIDLEMODE_SHIFT,
+ .enwkup_shift = SYSC_TYPE1_ENAWAKEUP_SHIFT,
+ .srst_shift = SYSC_TYPE1_SOFTRESET_SHIFT,
+ .autoidle_shift = SYSC_TYPE1_AUTOIDLE_SHIFT,
+};
+
+/**
+ * struct omap_hwmod_sysc_type2 - TYPE2 sysconfig scheme.
+ *
+ * To be used by hwmod structure to specify the sysconfig offsets if the
+ * device ip is compliant with the new PRCM protocol defined for new
+ * OMAP4 IPs.
+ */
+struct omap_hwmod_sysc_fields omap_hwmod_sysc_type2 = {
+ .midle_shift = SYSC_TYPE2_MIDLEMODE_SHIFT,
+ .sidle_shift = SYSC_TYPE2_SIDLEMODE_SHIFT,
+ .srst_shift = SYSC_TYPE2_SOFTRESET_SHIFT,
+};
diff --git a/arch/arm/plat-omap/include/plat/omap_hwmod.h b/arch/arm/plat-omap/include/plat/omap_hwmod.h
index 921990e2a29..665420e89c2 100644
--- a/arch/arm/plat-omap/include/plat/omap_hwmod.h
+++ b/arch/arm/plat-omap/include/plat/omap_hwmod.h
@@ -33,25 +33,42 @@
#define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_HWMOD_H
#include <linux/kernel.h>
+#include <linux/list.h>
#include <linux/ioport.h>
-
#include <plat/cpu.h>
struct omap_device;
-/* OCP SYSCONFIG bit shifts/masks */
-#define SYSC_MIDLEMODE_SHIFT 12
-#define SYSC_MIDLEMODE_MASK (0x3 << SYSC_MIDLEMODE_SHIFT)
-#define SYSC_CLOCKACTIVITY_SHIFT 8
-#define SYSC_CLOCKACTIVITY_MASK (0x3 << SYSC_CLOCKACTIVITY_SHIFT)
-#define SYSC_SIDLEMODE_SHIFT 3
-#define SYSC_SIDLEMODE_MASK (0x3 << SYSC_SIDLEMODE_SHIFT)
-#define SYSC_ENAWAKEUP_SHIFT 2
-#define SYSC_ENAWAKEUP_MASK (1 << SYSC_ENAWAKEUP_SHIFT)
-#define SYSC_SOFTRESET_SHIFT 1
-#define SYSC_SOFTRESET_MASK (1 << SYSC_SOFTRESET_SHIFT)
-#define SYSC_AUTOIDLE_SHIFT 0
-#define SYSC_AUTOIDLE_MASK (1 << SYSC_AUTOIDLE_SHIFT)
+extern struct omap_hwmod_sysc_fields omap_hwmod_sysc_type1;
+extern struct omap_hwmod_sysc_fields omap_hwmod_sysc_type2;
+
+/*
+ * OCP SYSCONFIG bit shifts/masks TYPE1. These are for IPs compliant
+ * with the original PRCM protocol defined for OMAP2420
+ */
+#define SYSC_TYPE1_MIDLEMODE_SHIFT 12
+#define SYSC_TYPE1_MIDLEMODE_MASK (0x3 << SYSC_MIDLEMODE_SHIFT)
+#define SYSC_TYPE1_CLOCKACTIVITY_SHIFT 8
+#define SYSC_TYPE1_CLOCKACTIVITY_MASK (0x3 << SYSC_CLOCKACTIVITY_SHIFT)
+#define SYSC_TYPE1_SIDLEMODE_SHIFT 3
+#define SYSC_TYPE1_SIDLEMODE_MASK (0x3 << SYSC_SIDLEMODE_SHIFT)
+#define SYSC_TYPE1_ENAWAKEUP_SHIFT 2
+#define SYSC_TYPE1_ENAWAKEUP_MASK (1 << SYSC_ENAWAKEUP_SHIFT)
+#define SYSC_TYPE1_SOFTRESET_SHIFT 1
+#define SYSC_TYPE1_SOFTRESET_MASK (1 << SYSC_SOFTRESET_SHIFT)
+#define SYSC_TYPE1_AUTOIDLE_SHIFT 0
+#define SYSC_TYPE1_AUTOIDLE_MASK (1 << SYSC_AUTOIDLE_SHIFT)
+
+/*
+ * OCP SYSCONFIG bit shifts/masks TYPE2. These are for IPs compliant
+ * with the new PRCM protocol defined for new OMAP4 IPs.
+ */
+#define SYSC_TYPE2_SOFTRESET_SHIFT 0
+#define SYSC_TYPE2_SOFTRESET_MASK (1 << SYSC_TYPE2_SOFTRESET_SHIFT)
+#define SYSC_TYPE2_SIDLEMODE_SHIFT 2
+#define SYSC_TYPE2_SIDLEMODE_MASK (0x3 << SYSC_TYPE2_SIDLEMODE_SHIFT)
+#define SYSC_TYPE2_MIDLEMODE_SHIFT 4
+#define SYSC_TYPE2_MIDLEMODE_MASK (0x3 << SYSC_TYPE2_MIDLEMODE_SHIFT)
/* OCP SYSSTATUS bit shifts/masks */
#define SYSS_RESETDONE_SHIFT 0
@@ -62,7 +79,6 @@ struct omap_device;
#define HWMOD_IDLEMODE_NO (1 << 1)
#define HWMOD_IDLEMODE_SMART (1 << 2)
-
/**
* struct omap_hwmod_irq_info - MPU IRQs used by the hwmod
* @name: name of the IRQ channel (module local name)
@@ -236,6 +252,24 @@ struct omap_hwmod_ocp_if {
#define CLOCKACT_TEST_NONE 0x3
/**
+ * struct omap_hwmod_sysc_fields - hwmod OCP_SYSCONFIG register field offsets.
+ * @midle_shift: Offset of the midle bit
+ * @clkact_shift: Offset of the clockactivity bit
+ * @sidle_shift: Offset of the sidle bit
+ * @enwkup_shift: Offset of the enawakeup bit
+ * @srst_shift: Offset of the softreset bit
+ * @autoidle_shift: Offset of the autoidle bit.
+ */
+struct omap_hwmod_sysc_fields {
+ u8 midle_shift;
+ u8 clkact_shift;
+ u8 sidle_shift;
+ u8 enwkup_shift;
+ u8 srst_shift;
+ u8 autoidle_shift;
+};
+
+/**
* struct omap_hwmod_sysconfig - hwmod OCP_SYSCONFIG/OCP_SYSSTATUS data
* @rev_offs: IP block revision register offset (from module base addr)
* @sysc_offs: OCP_SYSCONFIG register offset (from module base addr)
@@ -252,6 +286,14 @@ struct omap_hwmod_ocp_if {
* been associated with the clocks marked in @clockact. This field is
* only used if HWMOD_SET_DEFAULT_CLOCKACT is set (see below)
*
+ *
+ * @sysc_fields: structure containing the offset positions of various bits in
+ * SYSCONFIG register. This can be populated using omap_hwmod_sysc_type1 or
+ * omap_hwmod_sysc_type2 defined in omap_hwmod_common_data.c depending on
+ * whether the device ip is compliant with the original PRCM protocol
+ * defined for OMAP2420 or the new PRCM protocol for new OMAP4 IPs.
+ * If the device follows a differnt scheme for the sysconfig register ,
+ * then this field has to be populated with the correct offset structure.
*/
struct omap_hwmod_sysconfig {
u16 rev_offs;
@@ -260,6 +302,7 @@ struct omap_hwmod_sysconfig {
u8 idlemodes;
u8 sysc_flags;
u8 clockact;
+ struct omap_hwmod_sysc_fields *sysc_fields;
};
/**
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-04 02:36:38 +0000