Merge tag 'omap-devel-hwmod-data-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/pm

Data changes related to omap hwmod

By Paul Walmsley (4) and others
via Paul Walmsley (1) and Tony Lindgren (1)
* tag 'omap-devel-hwmod-data-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: WDTIMER integration: fix !PM boot crash, disarm timer after hwmod reset
  ARM: OMAP2/3: hwmod data: Add 32k-sync timer data to hwmod database
  ARM: OMAP4: hwmod_data: Name the common irq for McBSP ports
  ARM: OMAP4: hwmod data: I2C: add flag for context restore
  ARM: OMAP3: hwmod_data: Rename the common irq for McBSP ports
  ARM: OMAP2xxx: hwmod data: add HDQ/1-wire hwmod
  ARM: OMAP3: hwmod data: add HDQ/1-wire hwmod
  ARM: OMAP2+: hwmod data: add HDQ/1-wire hwmod shared data
  ARM: OMAP2+: HDQ1W: add custom reset function
  ARM: OMAP2420: hwmod data: Add MMC hwmod data for 2420

14 files changed, 522 insertions, 31 deletions

diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index d8604a3e490e..385c083d24b2 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -4,7 +4,7 @@
 
 # Common support
 obj-y := id.o io.o control.o mux.o devices.o serial.o gpmc.o timer.o pm.o \
-	 common.o gpio.o dma.o wd_timer.o display.o i2c.o
+	 common.o gpio.o dma.o wd_timer.o display.o i2c.o hdq1w.o
 
 omap-2-3-common				= irq.o sdrc.o
 hwmod-common				= omap_hwmod.o \
@@ -189,6 +189,9 @@ ifneq ($(CONFIG_TIDSPBRIDGE),)
 obj-y					+= dsp.o
 endif
 
+# OMAP2420 MSDI controller integration support ("MMC")
+obj-$(CONFIG_SOC_OMAP2420)		+= msdi.o
+
 # Specific board support
 obj-$(CONFIG_MACH_OMAP_GENERIC)		+= board-generic.o
 obj-$(CONFIG_MACH_OMAP_H4)		+= board-h4.o
diff --git a/arch/arm/mach-omap2/hdq1w.c b/arch/arm/mach-omap2/hdq1w.c
new file mode 100644
index 000000000000..297ebe03f09c
--- /dev/null
+++ b/arch/arm/mach-omap2/hdq1w.c
@@ -0,0 +1,72 @@
+/*
+ * IP block integration code for the HDQ1W/1-wire IP block
+ *
+ * Copyright (C) 2012 Texas Instruments, Inc.
+ * Paul Walmsley
+ *
+ * Based on the I2C reset code in arch/arm/mach-omap2/i2c.c by
+ *     Avinash.H.M <avinashhm@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 program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#include <plat/omap_hwmod.h>
+#include <plat/hdq1w.h>
+
+#include "common.h"
+
+/* Maximum microseconds to wait for OMAP module to softreset */
+#define MAX_MODULE_SOFTRESET_WAIT	10000
+
+/**
+ * omap_hdq1w_reset - reset the OMAP HDQ1W module
+ * @oh: struct omap_hwmod *
+ *
+ * OCP soft reset the HDQ1W IP block.  Section 20.6.1.4 "HDQ1W/1-Wire
+ * Software Reset" of the OMAP34xx Technical Reference Manual Revision
+ * ZR (SWPU223R) does not include the rather important fact that, for
+ * the reset to succeed, the HDQ1W module's internal clock gate must be
+ * programmed to allow the clock to propagate to the rest of the
+ * module.  In this sense, it's rather similar to the I2C custom reset
+ * function.  Returns 0.
+ */
+int omap_hdq1w_reset(struct omap_hwmod *oh)
+{
+	u32 v;
+	int c = 0;
+
+	/* Write to the SOFTRESET bit */
+	omap_hwmod_softreset(oh);
+
+	/* Enable the module's internal clocks */
+	v = omap_hwmod_read(oh, HDQ_CTRL_STATUS_OFFSET);
+	v |= 1 << HDQ_CTRL_STATUS_CLOCKENABLE_SHIFT;
+	omap_hwmod_write(v, oh, HDQ_CTRL_STATUS_OFFSET);
+
+	/* Poll on RESETDONE bit */
+	omap_test_timeout((omap_hwmod_read(oh,
+					   oh->class->sysc->syss_offs)
+			   & SYSS_RESETDONE_MASK),
+			  MAX_MODULE_SOFTRESET_WAIT, c);
+
+	if (c == MAX_MODULE_SOFTRESET_WAIT)
+		pr_warning("%s: %s: softreset failed (waited %d usec)\n",
+			   __func__, oh->name, MAX_MODULE_SOFTRESET_WAIT);
+	else
+		pr_debug("%s: %s: softreset in %d usec\n", __func__,
+			 oh->name, c);
+
+	return 0;
+}
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 065bd768987c..fafcc35b970c 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -363,24 +363,6 @@ static void __init omap_hwmod_init_postsetup(void)
 #endif
 	omap_hwmod_for_each(_set_hwmod_postsetup_state, &postsetup_state);
 
-	/*
-	 * Set the default postsetup state for unusual modules (like
-	 * MPU WDT).
-	 *
-	 * The postsetup_state is not actually used until
-	 * omap_hwmod_late_init(), so boards that desire full watchdog
-	 * coverage of kernel initialization can reprogram the
-	 * postsetup_state between the calls to
-	 * omap2_init_common_infra() and omap_sdrc_init().
-	 *
-	 * XXX ideally we could detect whether the MPU WDT was currently
-	 * enabled here and make this conditional
-	 */
-	postsetup_state = _HWMOD_STATE_DISABLED;
-	omap_hwmod_for_each_by_class("wd_timer",
-				     _set_hwmod_postsetup_state,
-				     &postsetup_state);
-
 	omap_pm_if_early_init();
 }
 
diff --git a/arch/arm/mach-omap2/msdi.c b/arch/arm/mach-omap2/msdi.c
new file mode 100644
index 000000000000..ef2a6924731a
--- /dev/null
+++ b/arch/arm/mach-omap2/msdi.c
@@ -0,0 +1,88 @@
+/*
+ * MSDI IP block reset
+ *
+ * Copyright (C) 2012 Texas Instruments, Inc.
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ * XXX What about pad muxing?
+ */
+
+#include <linux/kernel.h>
+
+#include <plat/omap_hwmod.h>
+#include <plat/mmc.h>
+
+#include "common.h"
+
+/*
+ * MSDI_CON_OFFSET: offset in bytes of the MSDI IP block's CON register
+ *     from the IP block's base address
+ */
+#define MSDI_CON_OFFSET				0x0c
+
+/* Register bitfields in the CON register */
+#define MSDI_CON_POW_MASK			BIT(11)
+#define MSDI_CON_CLKD_MASK			(0x3f << 0)
+#define MSDI_CON_CLKD_SHIFT			0
+
+/* Maximum microseconds to wait for OMAP module to softreset */
+#define MAX_MODULE_SOFTRESET_WAIT	10000
+
+/* MSDI_TARGET_RESET_CLKD: clock divisor to use throughout the reset */
+#define MSDI_TARGET_RESET_CLKD		0x3ff
+
+/**
+ * omap_msdi_reset - reset the MSDI IP block
+ * @oh: struct omap_hwmod *
+ *
+ * The MSDI IP block on OMAP2420 has to have both the POW and CLKD
+ * fields set inside its CON register for a reset to complete
+ * successfully.  This is not documented in the TRM.  For CLKD, we use
+ * the value that results in the lowest possible clock rate, to attempt
+ * to avoid disturbing any cards.
+ */
+int omap_msdi_reset(struct omap_hwmod *oh)
+{
+	u16 v = 0;
+	int c = 0;
+
+	/* Write to the SOFTRESET bit */
+	omap_hwmod_softreset(oh);
+
+	/* Enable the MSDI core and internal clock */
+	v |= MSDI_CON_POW_MASK;
+	v |= MSDI_TARGET_RESET_CLKD << MSDI_CON_CLKD_SHIFT;
+	omap_hwmod_write(v, oh, MSDI_CON_OFFSET);
+
+	/* Poll on RESETDONE bit */
+	omap_test_timeout((omap_hwmod_read(oh, oh->class->sysc->syss_offs)
+			   & SYSS_RESETDONE_MASK),
+			  MAX_MODULE_SOFTRESET_WAIT, c);
+
+	if (c == MAX_MODULE_SOFTRESET_WAIT)
+		pr_warning("%s: %s: softreset failed (waited %d usec)\n",
+			   __func__, oh->name, MAX_MODULE_SOFTRESET_WAIT);
+	else
+		pr_debug("%s: %s: softreset in %d usec\n", __func__,
+			 oh->name, c);
+
+	/* Disable the MSDI internal clock */
+	v &= ~MSDI_CON_CLKD_MASK;
+	omap_hwmod_write(v, oh, MSDI_CON_OFFSET);
+
+	return 0;
+}
diff --git a/arch/arm/mach-omap2/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
index 2c087ffc6a92..a7640d1b215e 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
@@ -23,6 +23,7 @@
 #include <plat/dmtimer.h>
 #include <plat/l3_2xxx.h>
 #include <plat/l4_2xxx.h>
+#include <plat/mmc.h>
 
 #include "omap_hwmod_common_data.h"
 
@@ -239,6 +240,67 @@ static struct omap_hwmod omap2420_mcbsp2_hwmod = {
 	},
 };
 
+static struct omap_hwmod_class_sysconfig omap2420_msdi_sysc = {
+	.rev_offs	= 0x3c,
+	.sysc_offs	= 0x64,
+	.syss_offs	= 0x68,
+	.sysc_flags	= (SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class omap2420_msdi_hwmod_class = {
+	.name	= "msdi",
+	.sysc	= &omap2420_msdi_sysc,
+	.reset	= &omap_msdi_reset,
+};
+
+/* msdi1 */
+static struct omap_hwmod_irq_info omap2420_msdi1_irqs[] = {
+	{ .irq = 83 },
+	{ .irq = -1 }
+};
+
+static struct omap_hwmod_dma_info omap2420_msdi1_sdma_reqs[] = {
+	{ .name = "tx", .dma_req = 61 }, /* OMAP24XX_DMA_MMC1_TX */
+	{ .name = "rx", .dma_req = 62 }, /* OMAP24XX_DMA_MMC1_RX */
+	{ .dma_req = -1 }
+};
+
+static struct omap_hwmod omap2420_msdi1_hwmod = {
+	.name		= "msdi1",
+	.class		= &omap2420_msdi_hwmod_class,
+	.mpu_irqs	= omap2420_msdi1_irqs,
+	.sdma_reqs	= omap2420_msdi1_sdma_reqs,
+	.main_clk	= "mmc_fck",
+	.prcm		= {
+		.omap2 = {
+			.prcm_reg_id = 1,
+			.module_bit = OMAP2420_EN_MMC_SHIFT,
+			.module_offs = CORE_MOD,
+			.idlest_reg_id = 1,
+			.idlest_idle_bit = OMAP2420_ST_MMC_SHIFT,
+		},
+	},
+	.flags		= HWMOD_16BIT_REG,
+};
+
+/* HDQ1W/1-wire */
+static struct omap_hwmod omap2420_hdq1w_hwmod = {
+	.name		= "hdq1w",
+	.mpu_irqs	= omap2_hdq1w_mpu_irqs,
+	.main_clk	= "hdq_fck",
+	.prcm		= {
+		.omap2 = {
+			.module_offs = CORE_MOD,
+			.prcm_reg_id = 1,
+			.module_bit = OMAP24XX_EN_HDQ_SHIFT,
+			.idlest_reg_id = 1,
+			.idlest_idle_bit = OMAP24XX_ST_HDQ_SHIFT,
+		},
+	},
+	.class		= &omap2_hdq1w_class,
+};
+
 /*
  * interfaces
  */
@@ -428,6 +490,53 @@ static struct omap_hwmod_ocp_if omap2420_l4_core__mcbsp2 = {
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
+static struct omap_hwmod_addr_space omap2420_msdi1_addrs[] = {
+	{
+		.pa_start	= 0x4809c000,
+		.pa_end		= 0x4809c000 + SZ_128 - 1,
+		.flags		= ADDR_TYPE_RT,
+	},
+	{ }
+};
+
+/* l4_core -> msdi1 */
+static struct omap_hwmod_ocp_if omap2420_l4_core__msdi1 = {
+	.master		= &omap2xxx_l4_core_hwmod,
+	.slave		= &omap2420_msdi1_hwmod,
+	.clk		= "mmc_ick",
+	.addr		= omap2420_msdi1_addrs,
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* l4_core -> hdq1w interface */
+static struct omap_hwmod_ocp_if omap2420_l4_core__hdq1w = {
+	.master		= &omap2xxx_l4_core_hwmod,
+	.slave		= &omap2420_hdq1w_hwmod,
+	.clk		= "hdq_ick",
+	.addr		= omap2_hdq1w_addr_space,
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+	.flags		= OMAP_FIREWALL_L4 | OCPIF_SWSUP_IDLE,
+};
+
+
+/* l4_wkup -> 32ksync_counter */
+static struct omap_hwmod_addr_space omap2420_counter_32k_addrs[] = {
+	{
+		.pa_start	= 0x48004000,
+		.pa_end		= 0x4800401f,
+		.flags		= ADDR_TYPE_RT
+	},
+	{ }
+};
+
+static struct omap_hwmod_ocp_if omap2420_l4_wkup__counter_32k = {
+	.master		= &omap2xxx_l4_wkup_hwmod,
+	.slave		= &omap2xxx_counter_32k_hwmod,
+	.clk		= "sync_32k_ick",
+	.addr		= omap2420_counter_32k_addrs,
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
 static struct omap_hwmod_ocp_if *omap2420_hwmod_ocp_ifs[] __initdata = {
 	&omap2xxx_l3_main__l4_core,
 	&omap2xxx_mpu__l3_main,
@@ -468,6 +577,9 @@ static struct omap_hwmod_ocp_if *omap2420_hwmod_ocp_ifs[] __initdata = {
 	&omap2420_l4_core__mailbox,
 	&omap2420_l4_core__mcbsp1,
 	&omap2420_l4_core__mcbsp2,
+	&omap2420_l4_core__msdi1,
+	&omap2420_l4_core__hdq1w,
+	&omap2420_l4_wkup__counter_32k,
 	NULL,
 };
 
diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
index 71d9f8824f9d..4d7264981230 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
@@ -528,6 +528,23 @@ static struct omap_hwmod omap2430_mmc2_hwmod = {
 	.class		= &omap2430_mmc_class,
 };
 
+/* HDQ1W/1-wire */
+static struct omap_hwmod omap2430_hdq1w_hwmod = {
+	.name		= "hdq1w",
+	.mpu_irqs	= omap2_hdq1w_mpu_irqs,
+	.main_clk	= "hdq_fck",
+	.prcm		= {
+		.omap2 = {
+			.module_offs = CORE_MOD,
+			.prcm_reg_id = 1,
+			.module_bit = OMAP24XX_EN_HDQ_SHIFT,
+			.idlest_reg_id = 1,
+			.idlest_idle_bit = OMAP24XX_ST_HDQ_SHIFT,
+		},
+	},
+	.class		= &omap2_hdq1w_class,
+};
+
 /*
  * interfaces
  */
@@ -838,6 +855,34 @@ static struct omap_hwmod_ocp_if omap2430_l4_core__mcbsp5 = {
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
+/* l4_core -> hdq1w */
+static struct omap_hwmod_ocp_if omap2430_l4_core__hdq1w = {
+	.master		= &omap2xxx_l4_core_hwmod,
+	.slave		= &omap2430_hdq1w_hwmod,
+	.clk		= "hdq_ick",
+	.addr		= omap2_hdq1w_addr_space,
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+	.flags		= OMAP_FIREWALL_L4 | OCPIF_SWSUP_IDLE,
+};
+
+/* l4_wkup -> 32ksync_counter */
+static struct omap_hwmod_addr_space omap2430_counter_32k_addrs[] = {
+	{
+		.pa_start	= 0x49020000,
+		.pa_end		= 0x4902001f,
+		.flags		= ADDR_TYPE_RT
+	},
+	{ }
+};
+
+static struct omap_hwmod_ocp_if omap2430_l4_wkup__counter_32k = {
+	.master		= &omap2xxx_l4_wkup_hwmod,
+	.slave		= &omap2xxx_counter_32k_hwmod,
+	.clk		= "sync_32k_ick",
+	.addr		= omap2430_counter_32k_addrs,
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
 static struct omap_hwmod_ocp_if *omap2430_hwmod_ocp_ifs[] __initdata = {
 	&omap2xxx_l3_main__l4_core,
 	&omap2xxx_mpu__l3_main,
@@ -886,6 +931,8 @@ static struct omap_hwmod_ocp_if *omap2430_hwmod_ocp_ifs[] __initdata = {
 	&omap2430_l4_core__mcbsp3,
 	&omap2430_l4_core__mcbsp4,
 	&omap2430_l4_core__mcbsp5,
+	&omap2430_l4_core__hdq1w,
+	&omap2430_l4_wkup__counter_32k,
 	NULL,
 };
 
diff --git a/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_interconnect_data.c b/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_interconnect_data.c
index 04637fabadd2..cbb4ef6544ad 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_interconnect_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_interconnect_data.c
@@ -171,3 +171,12 @@ struct omap_hwmod_addr_space omap2_mcbsp1_addrs[] = {
 	},
 	{ }
 };
+
+struct omap_hwmod_addr_space omap2_hdq1w_addr_space[] = {
+	{
+		.pa_start       = 0x480b2000,
+		.pa_end         = 0x480b2fff,
+		.flags          = ADDR_TYPE_RT,
+	},
+	{ }
+};
diff --git a/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c
index f08e442af397..102d76e9e9ea 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c
@@ -2,6 +2,7 @@
  * omap_hwmod_2xxx_3xxx_ipblock_data.c - common IP block data for OMAP2/3
  *
  * Copyright (C) 2011 Nokia Corporation
+ * Copyright (C) 2012 Texas Instruments, Inc.
  * Paul Walmsley
  *
  * This program is free software; you can redistribute it and/or modify
@@ -12,6 +13,7 @@
 #include <plat/serial.h>
 #include <plat/dma.h>
 #include <plat/common.h>
+#include <plat/hdq1w.h>
 
 #include <mach/irqs.h>
 
@@ -302,3 +304,23 @@ struct omap_hwmod_irq_info omap2_mcspi2_mpu_irqs[] = {
 	{ .irq = -1 }
 };
 
+struct omap_hwmod_class_sysconfig omap2_hdq1w_sysc = {
+	.rev_offs	= 0x0,
+	.sysc_offs	= 0x14,
+	.syss_offs	= 0x18,
+	.sysc_flags	= (SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE |
+			   SYSS_HAS_RESET_STATUS),
+	.sysc_fields    = &omap_hwmod_sysc_type1,
+};
+
+struct omap_hwmod_class omap2_hdq1w_class = {
+	.name	= "hdq1w",
+	.sysc	= &omap2_hdq1w_sysc,
+	.reset	= &omap_hdq1w_reset,
+};
+
+struct omap_hwmod_irq_info omap2_hdq1w_mpu_irqs[] = {
+	{ .irq = 58, },
+	{ .irq = -1 }
+};
+
diff --git a/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c
index 45aaa07e3025..83eafd96ecaa 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c
@@ -89,7 +89,8 @@ static struct omap_hwmod_class_sysconfig omap2xxx_wd_timer_sysc = {
 struct omap_hwmod_class omap2xxx_wd_timer_hwmod_class = {
 	.name		= "wd_timer",
 	.sysc		= &omap2xxx_wd_timer_sysc,
-	.pre_shutdown	= &omap2_wd_timer_disable
+	.pre_shutdown	= &omap2_wd_timer_disable,
+	.reset		= &omap2_wd_timer_reset,
 };
 
 /*
@@ -732,3 +733,23 @@ struct omap_hwmod omap2xxx_mcspi2_hwmod = {
 	.class		= &omap2xxx_mcspi_class,
 	.dev_attr	= &omap_mcspi2_dev_attr,
 };
+
+
+static struct omap_hwmod_class omap2xxx_counter_hwmod_class = {
+	.name	= "counter",
+};
+
+struct omap_hwmod omap2xxx_counter_32k_hwmod = {
+	.name		= "counter_32k",
+	.main_clk	= "func_32k_ck",
+	.prcm		= {
+		.omap2	= {
+			.module_offs = WKUP_MOD,
+			.prcm_reg_id = 1,
+			.module_bit = OMAP24XX_ST_32KSYNC_SHIFT,
+			.idlest_reg_id = 1,
+			.idlest_idle_bit = OMAP24XX_ST_32KSYNC_SHIFT,
+		},
+	},
+	.class		= &omap2xxx_counter_hwmod_class,
+};
diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
index 0c65079c2b69..fd48797fa95a 100644
--- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
@@ -418,7 +418,8 @@ static struct omap_hwmod_class_sysconfig i2c_sysc = {
 static struct omap_hwmod_class omap3xxx_wd_timer_hwmod_class = {
 	.name		= "wd_timer",
 	.sysc		= &omap3xxx_wd_timer_sysc,
-	.pre_shutdown	= &omap2_wd_timer_disable
+	.pre_shutdown	= &omap2_wd_timer_disable,
+	.reset		= &omap2_wd_timer_reset,
 };
 
 static struct omap_hwmod omap3xxx_wd_timer2_hwmod = {
@@ -1075,7 +1076,7 @@ static struct omap_hwmod_class omap3xxx_mcbsp_hwmod_class = {
 
 /* mcbsp1 */
 static struct omap_hwmod_irq_info omap3xxx_mcbsp1_irqs[] = {
-	{ .name = "irq", .irq = 16 },
+	{ .name = "common", .irq = 16 },
 	{ .name = "tx", .irq = 59 },
 	{ .name = "rx", .irq = 60 },
 	{ .irq = -1 }
@@ -1100,7 +1101,7 @@ static struct omap_hwmod omap3xxx_mcbsp1_hwmod = {
 
 /* mcbsp2 */
 static struct omap_hwmod_irq_info omap3xxx_mcbsp2_irqs[] = {
-	{ .name = "irq", .irq = 17 },
+	{ .name = "common", .irq = 17 },
 	{ .name = "tx", .irq = 62 },
 	{ .name = "rx", .irq = 63 },
 	{ .irq = -1 }
@@ -1130,7 +1131,7 @@ static struct omap_hwmod omap3xxx_mcbsp2_hwmod = {
 
 /* mcbsp3 */
 static struct omap_hwmod_irq_info omap3xxx_mcbsp3_irqs[] = {
-	{ .name = "irq", .irq = 22 },
+	{ .name = "common", .irq = 22 },
 	{ .name = "tx", .irq = 89 },
 	{ .name = "rx", .irq = 90 },
 	{ .irq = -1 }
@@ -1160,7 +1161,7 @@ static struct omap_hwmod omap3xxx_mcbsp3_hwmod = {
 
 /* mcbsp4 */
 static struct omap_hwmod_irq_info omap3xxx_mcbsp4_irqs[] = {
-	{ .name = "irq", .irq = 23 },
+	{ .name = "common", .irq = 23 },
 	{ .name = "tx", .irq = 54 },
 	{ .name = "rx", .irq = 55 },
 	{ .irq = -1 }
@@ -1191,7 +1192,7 @@ static struct omap_hwmod omap3xxx_mcbsp4_hwmod = {
 
 /* mcbsp5 */
 static struct omap_hwmod_irq_info omap3xxx_mcbsp5_irqs[] = {
-	{ .name = "irq", .irq = 27 },
+	{ .name = "common", .irq = 27 },
 	{ .name = "tx", .irq = 81 },
 	{ .name = "rx", .irq = 82 },
 	{ .irq = -1 }
@@ -1980,6 +1981,56 @@ static struct omap_hwmod omap3xxx_usb_tll_hs_hwmod = {
 	},
 };
 
+static struct omap_hwmod omap3xxx_hdq1w_hwmod = {
+	.name		= "hdq1w",
+	.mpu_irqs	= omap2_hdq1w_mpu_irqs,
+	.main_clk	= "hdq_fck",
+	.prcm		= {
+		.omap2 = {
+			.module_offs = CORE_MOD,
+			.prcm_reg_id = 1,
+			.module_bit = OMAP3430_EN_HDQ_SHIFT,
+			.idlest_reg_id = 1,
+			.idlest_idle_bit = OMAP3430_ST_HDQ_SHIFT,
+		},
+	},
+	.class		= &omap2_hdq1w_class,
+};
+
+/*
+ * '32K sync counter' class
+ * 32-bit ordinary counter, clocked by the falling edge of the 32 khz clock
+ */
+static struct omap_hwmod_class_sysconfig omap3xxx_counter_sysc = {
+	.rev_offs	= 0x0000,
+	.sysc_offs	= 0x0004,
+	.sysc_flags	= SYSC_HAS_SIDLEMODE,
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class omap3xxx_counter_hwmod_class = {
+	.name	= "counter",
+	.sysc	= &omap3xxx_counter_sysc,
+};
+
+static struct omap_hwmod omap3xxx_counter_32k_hwmod = {
+	.name		= "counter_32k",
+	.class		= &omap3xxx_counter_hwmod_class,
+	.clkdm_name	= "wkup_clkdm",
+	.flags		= HWMOD_SWSUP_SIDLE,
+	.main_clk	= "wkup_32k_fck",
+	.prcm		= {
+		.omap2	= {
+			.module_offs = WKUP_MOD,
+			.prcm_reg_id = 1,
+			.module_bit = OMAP3430_ST_32KSYNC_SHIFT,
+			.idlest_reg_id = 1,
+			.idlest_idle_bit = OMAP3430_ST_32KSYNC_SHIFT,
+		},
+	},
+};
+
 /*
  * interfaces
  */
@@ -3059,6 +3110,34 @@ static struct omap_hwmod_ocp_if omap3xxx_l4_core__usb_tll_hs = {
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
+/* l4_core -> hdq1w interface */
+static struct omap_hwmod_ocp_if omap3xxx_l4_core__hdq1w = {
+	.master		= &omap3xxx_l4_core_hwmod,
+	.slave		= &omap3xxx_hdq1w_hwmod,
+	.clk		= "hdq_ick",
+	.addr		= omap2_hdq1w_addr_space,
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+	.flags		= OMAP_FIREWALL_L4 | OCPIF_SWSUP_IDLE,
+};
+
+/* l4_wkup -> 32ksync_counter */
+static struct omap_hwmod_addr_space omap3xxx_counter_32k_addrs[] = {
+	{
+		.pa_start	= 0x48320000,
+		.pa_end		= 0x4832001f,
+		.flags		= ADDR_TYPE_RT
+	},
+	{ }
+};
+
+static struct omap_hwmod_ocp_if omap3xxx_l4_wkup__counter_32k = {
+	.master		= &omap3xxx_l4_wkup_hwmod,
+	.slave		= &omap3xxx_counter_32k_hwmod,
+	.clk		= "omap_32ksync_ick",
+	.addr		= omap3xxx_counter_32k_addrs,
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
 static struct omap_hwmod_ocp_if *omap3xxx_hwmod_ocp_ifs[] __initdata = {
 	&omap3xxx_l3_main__l4_core,
 	&omap3xxx_l3_main__l4_per,
@@ -3103,6 +3182,7 @@ static struct omap_hwmod_ocp_if *omap3xxx_hwmod_ocp_ifs[] __initdata = {
 	&omap34xx_l4_core__mcspi2,
 	&omap34xx_l4_core__mcspi3,
 	&omap34xx_l4_core__mcspi4,
+	&omap3xxx_l4_wkup__counter_32k,
 	NULL,
 };
 
@@ -3151,6 +3231,7 @@ static struct omap_hwmod_ocp_if *omap34xx_hwmod_ocp_ifs[] __initdata = {
 	&omap34xx_l4_core__sr1,
 	&omap34xx_l4_core__sr2,
 	&omap3xxx_l4_core__mailbox,
+	&omap3xxx_l4_core__hdq1w,
 	NULL
 };
 
@@ -3170,6 +3251,7 @@ static struct omap_hwmod_ocp_if *omap36xx_hwmod_ocp_ifs[] __initdata = {
 	&omap3xxx_l4_core__usb_tll_hs,
 	&omap3xxx_l4_core__es3plus_mmc1,
 	&omap3xxx_l4_core__es3plus_mmc2,
+	&omap3xxx_l4_core__hdq1w,
 	NULL
 };
 
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index 49061295475c..950454a3fa31 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -1487,7 +1487,8 @@ static struct omap_hwmod_class omap44xx_i2c_hwmod_class = {
 };
 
 static struct omap_i2c_dev_attr i2c_dev_attr = {
-	.flags	= OMAP_I2C_FLAG_BUS_SHIFT_NONE,
+	.flags	= OMAP_I2C_FLAG_BUS_SHIFT_NONE |
+			OMAP_I2C_FLAG_RESET_REGS_POSTIDLE,
 };
 
 /* i2c1 */
@@ -1911,7 +1912,7 @@ static struct omap_hwmod_class omap44xx_mcbsp_hwmod_class = {
 
 /* mcbsp1 */
 static struct omap_hwmod_irq_info omap44xx_mcbsp1_irqs[] = {
-	{ .irq = 17 + OMAP44XX_IRQ_GIC_START },
+	{ .name = "common", .irq = 17 + OMAP44XX_IRQ_GIC_START },
 	{ .irq = -1 }
 };
 
@@ -1946,7 +1947,7 @@ static struct omap_hwmod omap44xx_mcbsp1_hwmod = {
 
 /* mcbsp2 */
 static struct omap_hwmod_irq_info omap44xx_mcbsp2_irqs[] = {
-	{ .irq = 22 + OMAP44XX_IRQ_GIC_START },
+	{ .name = "common", .irq = 22 + OMAP44XX_IRQ_GIC_START },
 	{ .irq = -1 }
 };
 
@@ -1981,7 +1982,7 @@ static struct omap_hwmod omap44xx_mcbsp2_hwmod = {
 
 /* mcbsp3 */
 static struct omap_hwmod_irq_info omap44xx_mcbsp3_irqs[] = {
-	{ .irq = 23 + OMAP44XX_IRQ_GIC_START },
+	{ .name = "common", .irq = 23 + OMAP44XX_IRQ_GIC_START },
 	{ .irq = -1 }
 };
 
@@ -2016,7 +2017,7 @@ static struct omap_hwmod omap44xx_mcbsp3_hwmod = {
 
 /* mcbsp4 */
 static struct omap_hwmod_irq_info omap44xx_mcbsp4_irqs[] = {
-	{ .irq = 16 + OMAP44XX_IRQ_GIC_START },
+	{ .name = "common", .irq = 16 + OMAP44XX_IRQ_GIC_START },
 	{ .irq = -1 }
 };
 
@@ -3534,6 +3535,7 @@ static struct omap_hwmod_class omap44xx_wd_timer_hwmod_class = {
 	.name		= "wd_timer",
 	.sysc		= &omap44xx_wd_timer_sysc,
 	.pre_shutdown	= &omap2_wd_timer_disable,
+	.reset		= &omap2_wd_timer_reset,
 };
 
 /* wd_timer2 */
diff --git a/arch/arm/mach-omap2/omap_hwmod_common_data.h b/arch/arm/mach-omap2/omap_hwmod_common_data.h
index 7aa9156d50ab..e7e8eeae95e5 100644
--- a/arch/arm/mach-omap2/omap_hwmod_common_data.h
+++ b/arch/arm/mach-omap2/omap_hwmod_common_data.h
@@ -38,6 +38,7 @@ extern struct omap_hwmod_addr_space omap2430_mcspi3_addr_space[];
 extern struct omap_hwmod_addr_space omap2_dma_system_addrs[];
 extern struct omap_hwmod_addr_space omap2_mailbox_addrs[];
 extern struct omap_hwmod_addr_space omap2_mcbsp1_addrs[];
+extern struct omap_hwmod_addr_space omap2_hdq1w_addr_space[];
 
 /* Common IP block data across OMAP2xxx */
 extern struct omap_hwmod_irq_info omap2xxx_timer12_mpu_irqs[];
@@ -74,6 +75,7 @@ extern struct omap_hwmod omap2xxx_gpio3_hwmod;
 extern struct omap_hwmod omap2xxx_gpio4_hwmod;
 extern struct omap_hwmod omap2xxx_mcspi1_hwmod;
 extern struct omap_hwmod omap2xxx_mcspi2_hwmod;
+extern struct omap_hwmod omap2xxx_counter_32k_hwmod;
 
 /* Common interface data across OMAP2xxx */
 extern struct omap_hwmod_ocp_if omap2xxx_l3_main__l4_core;
@@ -141,6 +143,7 @@ extern struct omap_hwmod_irq_info omap2_dma_system_irqs[];
 extern struct omap_hwmod_irq_info omap2_mcspi1_mpu_irqs[];
 extern struct omap_hwmod_irq_info omap2_mcspi2_mpu_irqs[];
 extern struct omap_hwmod_addr_space omap2xxx_timer12_addrs[];
+extern struct omap_hwmod_irq_info omap2_hdq1w_mpu_irqs[];
 
 /* OMAP hwmod classes - forward declarations */
 extern struct omap_hwmod_class l3_hwmod_class;
@@ -152,6 +155,8 @@ extern struct omap_hwmod_class omap2_dss_hwmod_class;
 extern struct omap_hwmod_class omap2_dispc_hwmod_class;
 extern struct omap_hwmod_class omap2_rfbi_hwmod_class;
 extern struct omap_hwmod_class omap2_venc_hwmod_class;
+extern struct omap_hwmod_class_sysconfig omap2_hdq1w_sysc;
+extern struct omap_hwmod_class omap2_hdq1w_class;
 
 extern struct omap_hwmod_class omap2xxx_timer_hwmod_class;
 extern struct omap_hwmod_class omap2xxx_wd_timer_hwmod_class;
diff --git a/arch/arm/mach-omap2/wd_timer.c b/arch/arm/mach-omap2/wd_timer.c
index 4067669d96c4..b2f1c67043a2 100644
--- a/arch/arm/mach-omap2/wd_timer.c
+++ b/arch/arm/mach-omap2/wd_timer.c
@@ -14,6 +14,7 @@
 #include <plat/omap_hwmod.h>
 
 #include "wd_timer.h"
+#include "common.h"
 
 /*
  * In order to avoid any assumptions from bootloader regarding WDT
@@ -25,6 +26,8 @@
 #define OMAP_WDT_WPS		0x34
 #define OMAP_WDT_SPR		0x48
 
+/* Maximum microseconds to wait for OMAP module to softreset */
+#define MAX_MODULE_SOFTRESET_WAIT	10000
 
 int omap2_wd_timer_disable(struct omap_hwmod *oh)
 {
@@ -54,3 +57,45 @@ int omap2_wd_timer_disable(struct omap_hwmod *oh)
 	return 0;
 }
 
+/**
+ * omap2_wdtimer_reset - reset and disable the WDTIMER IP block
+ * @oh: struct omap_hwmod *
+ *
+ * After the WDTIMER IP blocks are reset on OMAP2/3, we must also take
+ * care to execute the special watchdog disable sequence.  This is
+ * because the watchdog is re-armed upon OCP softreset.  (On OMAP4,
+ * this behavior was apparently changed and the watchdog is no longer
+ * re-armed after an OCP soft-reset.)  Returns -ETIMEDOUT if the reset
+ * did not complete, or 0 upon success.
+ *
+ * XXX Most of this code should be moved to the omap_hwmod.c layer
+ * during a normal merge window.  omap_hwmod_softreset() should be
+ * renamed to omap_hwmod_set_ocp_softreset(), and omap_hwmod_softreset()
+ * should call the hwmod _ocp_softreset() code.
+ */
+int omap2_wd_timer_reset(struct omap_hwmod *oh)
+{
+	int c = 0;
+
+	/* Write to the SOFTRESET bit */
+	omap_hwmod_softreset(oh);
+
+	/* Poll on RESETDONE bit */
+	omap_test_timeout((omap_hwmod_read(oh,
+					   oh->class->sysc->syss_offs)
+			   & SYSS_RESETDONE_MASK),
+			  MAX_MODULE_SOFTRESET_WAIT, c);
+
+	if (oh->class->sysc->srst_udelay)
+		udelay(oh->class->sysc->srst_udelay);
+
+	if (c == MAX_MODULE_SOFTRESET_WAIT)
+		pr_warning("%s: %s: softreset failed (waited %d usec)\n",
+			   __func__, oh->name, MAX_MODULE_SOFTRESET_WAIT);
+	else
+		pr_debug("%s: %s: softreset in %d usec\n", __func__,
+			 oh->name, c);
+
+	return (c == MAX_MODULE_SOFTRESET_WAIT) ? -ETIMEDOUT :
+		omap2_wd_timer_disable(oh);
+}
diff --git a/arch/arm/mach-omap2/wd_timer.h b/arch/arm/mach-omap2/wd_timer.h
index e0054a2d5505..f6bbba73b535 100644
--- a/arch/arm/mach-omap2/wd_timer.h
+++ b/arch/arm/mach-omap2/wd_timer.h
@@ -13,5 +13,6 @@
 #include <plat/omap_hwmod.h>
 
 extern int omap2_wd_timer_disable(struct omap_hwmod *oh);
+extern int omap2_wd_timer_reset(struct omap_hwmod *oh);
 
 #endif