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* [PATCH] Load triton2 scripts.
@ 2008-08-25 10:31 Kalle Jokiniemi
  2008-09-11  0:08 ` Tony Lindgren
  2008-09-11  8:50 ` Kevin Hilman
  0 siblings, 2 replies; 12+ messages in thread
From: Kalle Jokiniemi @ 2008-08-25 10:31 UTC (permalink / raw)
  To: linux-omap; +Cc: tony, ext Peter 'p2' De Schrijver, Kalle Jokiniemi

From: ext Peter 'p2' De Schrijver <peter.de-schrijver@nokia.com>

This patch loads the triton2 (twl4030) with scripts that will cut off VDD1
and VDD2 voltages when SYS_OFF_MODE signal is set.

Signed-off-by: Peter 'p2' De Schrijver <peter.de-schrijver@nokia.com>
Signed-off-by: Kalle Jokiniemi <ext-kalle.jokiniemi@nokia.com>
---
 drivers/i2c/chips/Makefile        |    2 +-
 drivers/i2c/chips/twl4030-power.c |  337 +++++++++++++++++++++++++++++++++++++
 2 files changed, 338 insertions(+), 1 deletions(-)
 create mode 100644 drivers/i2c/chips/twl4030-power.c

diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile
index 9e245b1..ad5f5db 100644
--- a/drivers/i2c/chips/Makefile
+++ b/drivers/i2c/chips/Makefile
@@ -24,7 +24,7 @@ obj-$(CONFIG_GPIOEXPANDER_OMAP)	+= gpio_expander_omap.o
 obj-$(CONFIG_MENELAUS)		+= menelaus.o
 obj-$(CONFIG_SENSORS_TSL2550)	+= tsl2550.o
 obj-$(CONFIG_SENSORS_TSL2563)	+= tsl2563.o
-obj-$(CONFIG_TWL4030_CORE)	+= twl4030-core.o twl4030-pwrirq.o
+obj-$(CONFIG_TWL4030_CORE)	+= twl4030-core.o twl4030-pwrirq.o twl4030-power.o
 obj-$(CONFIG_TWL4030_GPIO)	+= twl4030-gpio.o
 obj-$(CONFIG_TWL4030_USB)	+= twl4030-usb.o
 obj-$(CONFIG_TWL4030_POWEROFF)	+= twl4030-poweroff.o
diff --git a/drivers/i2c/chips/twl4030-power.c b/drivers/i2c/chips/twl4030-power.c
new file mode 100644
index 0000000..195c3c4
--- /dev/null
+++ b/drivers/i2c/chips/twl4030-power.c
@@ -0,0 +1,337 @@
+/*
+ * linux/drivers/i2c/chips/twl4030-power.c
+ *
+ * Handle TWL4030 Power initialization
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ * Copyright (C) 2006 Texas Instruments, Inc
+ *
+ * Written by 	Kalle Jokiniemi
+ *		Peter De Schrijver <peter.de-schrijver@nokia.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of this
+ * archive for more details.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/module.h>
+#include <linux/pm.h>
+#include <linux/i2c/twl4030.h>
+
+#define PWR_P1_SW_EVENTS	0x10
+#define PWR_DEVOFF	(1<<0)
+
+#define PHY_TO_OFF_PM_MASTER(p)		(p - 0x36)
+#define PHY_TO_OFF_PM_RECIEVER(p)	(p - 0x5b)
+
+/* resource - hfclk */
+#define R_HFCLKOUT_DEV_GRP 	PHY_TO_OFF_PM_RECIEVER(0xe6)
+
+/* PM events */
+#define R_P1_SW_EVENTS		PHY_TO_OFF_PM_MASTER(0x46)
+#define R_P2_SW_EVENTS		PHY_TO_OFF_PM_MASTER(0x47)
+#define R_P3_SW_EVENTS		PHY_TO_OFF_PM_MASTER(0x48)
+#define R_CFG_P1_TRANSITION	PHY_TO_OFF_PM_MASTER(0x36)
+#define R_CFG_P2_TRANSITION	PHY_TO_OFF_PM_MASTER(0x37)
+#define R_CFG_P3_TRANSITION	PHY_TO_OFF_PM_MASTER(0x38)
+
+#define LVL_WAKEUP	0x08
+
+#define ENABLE_WARMRESET (1<<4)
+
+/* sequence script */
+
+#define END_OF_SCRIPT		0x3f
+
+#define R_SEQ_ADD_A2S		PHY_TO_OFF_PM_MASTER(0x55)
+#define R_SEQ_ADD_SA12		PHY_TO_OFF_PM_MASTER(0x56)
+#define	R_SEQ_ADD_S2A3		PHY_TO_OFF_PM_MASTER(0x57)
+#define	R_SEQ_ADD_WARM		PHY_TO_OFF_PM_MASTER(0x58)
+#define R_MEMORY_ADDRESS	PHY_TO_OFF_PM_MASTER(0x59)
+#define R_MEMORY_DATA		PHY_TO_OFF_PM_MASTER(0x5a)
+
+/* Power bus message definitions */
+
+#define DEV_GRP_NULL		0x0
+#define DEV_GRP_P1		0x1
+#define DEV_GRP_P2		0x2
+#define DEV_GRP_P3		0x4
+
+#define RES_GRP_RES		0x0
+#define RES_GRP_PP		0x1
+#define RES_GRP_RC		0x2
+#define RES_GRP_PP_RC		0x3
+#define RES_GRP_PR		0x4
+#define RES_GRP_PP_PR		0x5
+#define RES_GRP_RC_PR		0x6
+#define RES_GRP_ALL		0x7
+
+#define RES_TYPE2_R0		0x0
+
+#define RES_TYPE_ALL		0x7
+
+#define RES_STATE_WRST		0xF
+#define RES_STATE_ACTIVE	0xE
+#define RES_STATE_SLEEP		0x8
+#define RES_STATE_OFF		0x0
+
+/*
+*	Power Bus Message Format
+*
+*	Broadcast Message (16 Bits)
+*	DEV_GRP[15:13] MT[12]  RES_GRP[11:9]  RES_TYPE2[8:7] RES_TYPE[6:4]
+*	RES_STATE[3:0]
+*
+*	Singular Message (16 Bits)
+*	DEV_GRP[15:13] MT[12]  RES_ID[11:4]  RES_STATE[3:0]
+*
+*/
+
+#define MSG_BROADCAST(devgrp, grp, type, type2, state) \
+	(devgrp << 13 | 1 << 12 | grp << 9 | type2 << 7 | type << 4 | state)
+
+#define MSG_SINGULAR(devgrp, id, state) \
+	(devgrp << 13 | 0 << 12 | id << 4 | state)
+
+#define R_PROTECT_KEY		0x0E
+#define KEY_1			0xC0
+#define KEY_2			0x0C
+
+struct triton_ins {
+	u16 pmb_message;
+	u8 delay;
+};
+
+
+#define CONFIG_DISABLE_HFCLK	1
+
+#if defined(CONFIG_MACH_OMAP_3430SDP) || defined(CONFIG_MACH_OMAP_3430LABRADOR)
+
+struct triton_ins sleep_on_seq[] __initdata = {
+	{MSG_SINGULAR(DEV_GRP_P1, 0xf, RES_STATE_OFF), 4},
+	{MSG_SINGULAR(DEV_GRP_P1, 0x10, RES_STATE_OFF), 2},
+#ifdef CONFIG_DISABLE_HFCLK
+	{MSG_SINGULAR(DEV_GRP_P1, 0x7, RES_STATE_OFF), 3},
+	{MSG_SINGULAR(DEV_GRP_P1, 0x19, RES_STATE_OFF), 3},
+#endif /* #ifdef CONFIG_DISABLE_HFCLK */
+};
+
+struct triton_ins sleep_off_seq[] __initdata = {
+#ifndef CONFIG_DISABLE_HFCLK
+	{MSG_SINGULAR(DEV_GRP_P1, 0xf, RES_STATE_ACTIVE), 4},
+	{MSG_SINGULAR(DEV_GRP_P1, 0x10, RES_STATE_ACTIVE), 2},
+#else
+	{MSG_SINGULAR(DEV_GRP_P1, 0x7, RES_STATE_ACTIVE), 0x30},
+	{MSG_SINGULAR(DEV_GRP_P1, 0xf, RES_STATE_ACTIVE), 0x30},
+	{MSG_SINGULAR(DEV_GRP_P1, 0x10, RES_STATE_ACTIVE), 0x37},
+	{MSG_SINGULAR(DEV_GRP_P1, 0x19, RES_STATE_ACTIVE), 3},
+#endif /* #ifndef CONFIG_DISABLE_HFCLK */
+};
+
+struct triton_ins t2_wrst_seq[] __initdata = {
+	{MSG_SINGULAR(DEV_GRP_NULL, 0x1b, RES_STATE_OFF), 2},
+	{MSG_SINGULAR(DEV_GRP_P1, 0xf, RES_STATE_WRST), 15},
+	{MSG_SINGULAR(DEV_GRP_P1, 0x10, RES_STATE_WRST), 15},
+	{MSG_SINGULAR(DEV_GRP_P1, 0x7, RES_STATE_WRST), 0x60},
+	{MSG_SINGULAR(DEV_GRP_P1, 0x19, RES_STATE_ACTIVE), 2},
+	{MSG_SINGULAR(DEV_GRP_NULL, 0x1b, RES_STATE_ACTIVE), 2},
+};
+#else
+struct triton_ins sleep_on_seq[] __initdata = {
+	{MSG_BROADCAST(DEV_GRP_NULL, RES_GRP_RC, RES_TYPE_ALL, RES_TYPE2_R0,
+			RES_STATE_SLEEP), 4},
+	{MSG_BROADCAST(DEV_GRP_NULL, RES_GRP_ALL, RES_TYPE_ALL, RES_TYPE_R7,
+			RES_STATE_SLEEP), 4},
+};
+
+struct triton_ins sleep_off_seq[] __initdata = {
+	{MSG_SINGULAR(DEV_GRP_NULL, 0x17, RES_STATE_ACTIVE), 0x30},
+	{MSG_BROADCAST(DEV_GRP_NULL, RES_GRP_PP_PR, RES_TYPE_ALL, RES_TYPE2_R0,
+			RES_STATE_ACTIVE), 0x37},
+	{MSG_BROADCAST(DEV_GRP_NULL, RES_GRP_ALL, RES_TYPE_ALL, RES_TYPE2_R0,
+			RES_STATE_ACTIVE), 0x2},
+};
+#endif
+
+static int __init twl4030_write_script_byte(u8 address, u8 byte)
+{
+	int err;
+
+	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address,
+					R_MEMORY_ADDRESS);
+	err |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, byte,
+					R_MEMORY_DATA);
+
+	return err;
+}
+
+static int __init twl4030_write_script_ins(u8 address, u16 pmb_message,
+						u8 delay, u8 next)
+{
+	int err = 0;
+
+	address *= 4;
+	err |= twl4030_write_script_byte(address++, pmb_message >> 8);
+	err |= twl4030_write_script_byte(address++, pmb_message & 0xff);
+	err |= twl4030_write_script_byte(address++, delay);
+	err |= twl4030_write_script_byte(address++, next);
+
+	return err;
+}
+
+static int __init twl4030_write_script(u8 address, struct triton_ins *script,
+					int len)
+{
+	int err = 0;
+
+	for (; len; len--, address++, script++) {
+		if (len == 1)
+			err |= twl4030_write_script_ins(address,
+							script->pmb_message,
+							script->delay,
+							END_OF_SCRIPT);
+		else
+			err |= twl4030_write_script_ins(address,
+							script->pmb_message,
+							script->delay,
+							address + 1);
+	}
+
+	return err;
+}
+
+static int __init config_sleep_wake_sequence(void)
+{
+	int err = 0;
+	u8 data;
+
+	/*
+	 * CLKREQ is pulled high on the 2430SDP, therefore, we need to take
+	 * it out of the HFCLKOUT DEV_GRP for P1 else HFCLKOUT can't be stopped.
+	 */
+
+	err |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
+				  0x20, R_HFCLKOUT_DEV_GRP);
+
+	/* Set ACTIVE to SLEEP SEQ address in T2 memory*/
+	err |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0x2B,
+				  R_SEQ_ADD_A2S);
+
+	/* Set SLEEP to ACTIVE SEQ address for P1 and P2 */
+	err |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0x2F,
+				  R_SEQ_ADD_SA12);
+
+	/* Set SLEEP to ACTIVE SEQ address for P3 */
+	err |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0x2F,
+				  R_SEQ_ADD_S2A3);
+
+	/* Install Active->Sleep (A2S) sequence */
+	err |= twl4030_write_script(0x2B, sleep_on_seq,
+					ARRAY_SIZE(sleep_on_seq));
+
+	/* Install Sleep->Active (S2A) sequence */
+	err |= twl4030_write_script(0x2F, sleep_off_seq,
+					ARRAY_SIZE(sleep_off_seq));
+
+#if defined(CONFIG_MACH_OMAP_3430SDP) || defined(CONFIG_MACH_OMAP_3430LABRADOR)
+	/* Disabling AC charger effect on sleep-active transitions */
+	err |= twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &data,
+					R_CFG_P1_TRANSITION);
+	data &= 0x0;
+	err |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, data ,
+					R_CFG_P1_TRANSITION);
+#endif
+	/* P1/P2/P3 LVL_WAKEUP should be on LEVEL */
+	err |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, LVL_WAKEUP,
+					R_P1_SW_EVENTS);
+	err |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, LVL_WAKEUP,
+					R_P2_SW_EVENTS);
+	err |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, LVL_WAKEUP,
+				R_P3_SW_EVENTS);
+
+	if (err)
+		printk(KERN_ERR "TWL4030 sleep-wake sequence config error\n");
+
+	return err;
+}
+
+
+/* Programming the WARMRESET Sequence on TRITON */
+static int __init config_warmreset_sequence(void)
+{
+
+	int e = 0;
+	u8 rd_data;
+
+	if (!ARRAY_SIZE(t2_wrst_seq))
+		return 0;
+
+	/* Set WARM RESET SEQ address for P1 */
+	e |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0x38,
+				R_SEQ_ADD_WARM);
+
+	/* Install Warm Reset sequence */
+	e |= twl4030_write_script(0x38, t2_wrst_seq,
+					ARRAY_SIZE(t2_wrst_seq));
+
+	/* P1/P2/P3 enable WARMRESET */
+	e |= twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &rd_data,
+				R_P1_SW_EVENTS);
+	rd_data |= ENABLE_WARMRESET;
+	e |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, rd_data,
+				R_P1_SW_EVENTS);
+
+	e |= twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &rd_data,
+				R_P2_SW_EVENTS);
+	rd_data |= ENABLE_WARMRESET;
+	e |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, rd_data,
+				R_P2_SW_EVENTS);
+
+	e |= twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &rd_data,
+				R_P3_SW_EVENTS);
+	rd_data |= ENABLE_WARMRESET;
+	e |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, rd_data,
+				R_P3_SW_EVENTS);
+
+	if (e)
+		printk(KERN_ERR
+			"TWL4030 Power Companion Warmreset seq config error\n");
+	return e;
+}
+
+static int __init twl4030_power_init(void)
+{
+	int err = 0;
+
+	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, KEY_1,
+				R_PROTECT_KEY);
+	err |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, KEY_2,
+				R_PROTECT_KEY);
+
+	if (err)
+		return err;
+
+	err = config_sleep_wake_sequence();
+	if (err)
+		return err;
+
+	err = config_warmreset_sequence();
+	if (err)
+		return err;
+
+	err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0, R_PROTECT_KEY);
+
+	return err;
+
+}
+
+module_init(twl4030_power_init);
-- 
1.5.4.3


^ permalink raw reply related	[flat|nested] 12+ messages in thread
* RFC: OMAP3 SYS_OFF_MODE support
@ 2008-07-21 16:17 Peter 'p2' De Schrijver
  2008-07-21 16:17 ` [PATCH] Set correct off mode polarity Peter 'p2' De Schrijver
  0 siblings, 1 reply; 12+ messages in thread
From: Peter 'p2' De Schrijver @ 2008-07-21 16:17 UTC (permalink / raw)
  To: linux-omap


The following patch set introduces support for the OMAP3 SYS_OFF_MODE
signal. This will cause a properly programmed triton2 to shutdown the
VDD1 and VDD2 regulators when both core and MPU powerdomain are in off
state. The patches includes programming triton2 with the appropriate
scripts for the SDP3430 board.
By default the OMAP3 polarity of the SYS_OFF_MODE signal is inverted
compared to what triton2 expects. This means the polarity needs to be
changed before the triton2 scripts are activated, otherwise the system
will crash. At the moment this is done in omap2_clk_init as this
function is called before triton2 is initialized. Better suggestions are
welcome.
Thanks to Kalle Jokiniemi for doing the initial patch and test work.


^ permalink raw reply	[flat|nested] 12+ messages in thread
* [PATCH] Set correct off mode polarity
@ 2008-07-21 16:02 Peter 'p2' De Schrijver
  2008-07-21 16:02 ` [PATCH] Enable SYSOFFMODE use Peter 'p2' De Schrijver
  0 siblings, 1 reply; 12+ messages in thread
From: Peter 'p2' De Schrijver @ 2008-07-21 16:02 UTC (permalink / raw)
  To: linux-omap; +Cc: Peter 'p2' De Schrijver


Signed-off-by: Peter 'p2' De Schrijver <peter.de-schrijver@nokia.com>
---
 arch/arm/mach-omap2/clock34xx.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/arch/arm/mach-omap2/clock34xx.c b/arch/arm/mach-omap2/clock34xx.c
index 6bb25cf..b0bc1b9 100644
--- a/arch/arm/mach-omap2/clock34xx.c
+++ b/arch/arm/mach-omap2/clock34xx.c
@@ -46,6 +46,8 @@
 
 #define MAX_DPLL_WAIT_TRIES		1000000
 
+#define OFFMODE_POL 			(1<<3)
+
 struct vdd_prcm_config *curr_vdd1_prcm_set;
 struct vdd_prcm_config *curr_vdd2_prcm_set;
 static struct clk *dpll1_clk, *dpll2_clk, *dpll3_clk;
@@ -684,6 +686,9 @@ int __init omap2_clk_init(void)
 	}
 #endif
 
+	prm_clear_mod_reg_bits(OFFMODE_POL, OMAP3430_GR_MOD,
+				OMAP3_PRM_POLCTRL_OFFSET);
+
 	printk(KERN_INFO "Clocking rate (Crystal/DPLL/ARM core): "
 	       "%ld.%01ld/%ld/%ld MHz\n",
 	       (osc_sys_ck.rate / 1000000), (osc_sys_ck.rate / 100000) % 10,
@@ -797,7 +802,6 @@ static int omap3_select_table_rate(struct clk *clk, unsigned long rate)
 		return -EINVAL;
 	}
 
-
 	if (clk == &virt_vdd1_prcm_set) {
 		curr_mpu_speed = curr_vdd1_prcm_set->speed;
 		clk_set_rate(dpll1_clk, prcm_vdd->speed);
-- 
1.5.3.4


^ permalink raw reply related	[flat|nested] 12+ messages in thread

end of thread, other threads:[~2008-09-11  8:50 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2008-08-25 10:31 [PATCH] Load triton2 scripts Kalle Jokiniemi
2008-09-11  0:08 ` Tony Lindgren
2008-09-11  3:20   ` Steve Sakoman
2008-09-11  8:26     ` Koen Kooi
2008-09-11  8:50 ` Kevin Hilman
  -- strict thread matches above, loose matches on Subject: below --
2008-07-21 16:17 RFC: OMAP3 SYS_OFF_MODE support Peter 'p2' De Schrijver
2008-07-21 16:17 ` [PATCH] Set correct off mode polarity Peter 'p2' De Schrijver
2008-07-21 16:17   ` [PATCH] Enable SYSOFFMODE use Peter 'p2' De Schrijver
2008-07-21 16:17     ` [PATCH] Add SYSOFFMODE option Peter 'p2' De Schrijver
2008-07-21 16:17       ` [PATCH] Load triton2 scripts Peter 'p2' De Schrijver
2008-08-07 10:12         ` Kalle Jokiniemi
2008-08-18 13:31           ` Tony Lindgren
2008-08-19  7:02             ` Kalle Jokiniemi
2008-08-19  7:13               ` Tony Lindgren
2008-07-21 16:02 [PATCH] Set correct off mode polarity Peter 'p2' De Schrijver
2008-07-21 16:02 ` [PATCH] Enable SYSOFFMODE use Peter 'p2' De Schrijver
2008-07-21 16:02   ` [PATCH] Add SYSOFFMODE option Peter 'p2' De Schrijver
2008-07-21 16:02     ` [PATCH] Load triton2 scripts Peter 'p2' De Schrijver
2008-07-21 17:32       ` Felipe Balbi

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