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-rw-r--r--arch/arm/mach-omap2/board-omap3beagle.c50
-rw-r--r--arch/arm/mach-omap2/common.c14
-rw-r--r--arch/arm/mach-omap2/cpuidle34xx.c11
-rw-r--r--arch/arm/mach-omap2/include/mach/omap4-common.h4
-rw-r--r--arch/arm/mach-omap2/mailbox.c10
-rw-r--r--arch/arm/mach-omap2/omap-headsmp.S2
-rw-r--r--arch/arm/mach-omap2/omap44xx-smc.S8
-rw-r--r--arch/arm/mach-omap2/omap_twl.c60
-rw-r--r--arch/arm/mach-omap2/opp3xxx_data.c3
-rw-r--r--arch/arm/mach-omap2/opp4xxx_data.c3
-rw-r--r--arch/arm/mach-omap2/pm.c4
-rw-r--r--arch/arm/mach-omap2/pm.h1
-rw-r--r--arch/arm/mach-omap2/pm24xx.c8
-rw-r--r--arch/arm/mach-omap2/pm34xx.c24
-rw-r--r--arch/arm/mach-omap2/sleep34xx.S282
-rw-r--r--arch/arm/mach-omap2/smartreflex.c62
-rw-r--r--arch/arm/mach-omap2/sram34xx.S36
17 files changed, 339 insertions, 243 deletions
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index b6752ac..20c5dbe 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -23,6 +23,7 @@
#include <linux/gpio.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
+#include <linux/opp.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
@@ -45,10 +46,12 @@
#include <plat/gpmc.h>
#include <plat/nand.h>
#include <plat/usb.h>
+#include <plat/omap_device.h>
#include "mux.h"
#include "hsmmc.h"
#include "timer-gp.h"
+#include "pm.h"
#define NAND_BLOCK_SIZE SZ_128K
@@ -603,6 +606,52 @@ static struct omap_musb_board_data musb_board_data = {
.power = 100,
};
+static void __init beagle_opp_init(void)
+{
+ int r = 0;
+
+ /* Initialize the omap3 opp table */
+ if (omap3_opp_init()) {
+ pr_err("%s: opp default init failed\n", __func__);
+ return;
+ }
+
+ /* Custom OPP enabled for XM */
+ if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
+ struct omap_hwmod *mh = omap_hwmod_lookup("mpu");
+ struct omap_hwmod *dh = omap_hwmod_lookup("iva");
+ struct device *dev;
+
+ if (!mh || !dh) {
+ pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
+ __func__, mh, dh);
+ return;
+ }
+ /* Enable MPU 1GHz and lower opps */
+ dev = &mh->od->pdev.dev;
+ r = opp_enable(dev, 800000000);
+ /* TODO: MPU 1GHz needs SR and ABB */
+
+ /* Enable IVA 800MHz and lower opps */
+ dev = &dh->od->pdev.dev;
+ r |= opp_enable(dev, 660000000);
+ /* TODO: DSP 800MHz needs SR and ABB */
+ if (r) {
+ pr_err("%s: failed to enable higher opp %d\n",
+ __func__, r);
+ /*
+ * Cleanup - disable the higher freqs - we dont care
+ * about the results
+ */
+ dev = &mh->od->pdev.dev;
+ opp_disable(dev, 800000000);
+ dev = &dh->od->pdev.dev;
+ opp_disable(dev, 660000000);
+ }
+ }
+ return;
+}
+
static void __init omap3_beagle_init(void)
{
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
@@ -627,6 +676,7 @@ static void __init omap3_beagle_init(void)
omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
beagle_display_init();
+ beagle_opp_init();
}
MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
diff --git a/arch/arm/mach-omap2/common.c b/arch/arm/mach-omap2/common.c
index 48de451..3f20cbb 100644
--- a/arch/arm/mach-omap2/common.c
+++ b/arch/arm/mach-omap2/common.c
@@ -50,9 +50,6 @@ static struct omap_globals omap242x_globals = {
.ctrl = OMAP242X_CTRL_BASE,
.prm = OMAP2420_PRM_BASE,
.cm = OMAP2420_CM_BASE,
- .uart1_phys = OMAP2_UART1_BASE,
- .uart2_phys = OMAP2_UART2_BASE,
- .uart3_phys = OMAP2_UART3_BASE,
};
void __init omap2_set_globals_242x(void)
@@ -71,9 +68,6 @@ static struct omap_globals omap243x_globals = {
.ctrl = OMAP243X_CTRL_BASE,
.prm = OMAP2430_PRM_BASE,
.cm = OMAP2430_CM_BASE,
- .uart1_phys = OMAP2_UART1_BASE,
- .uart2_phys = OMAP2_UART2_BASE,
- .uart3_phys = OMAP2_UART3_BASE,
};
void __init omap2_set_globals_243x(void)
@@ -92,10 +86,6 @@ static struct omap_globals omap3_globals = {
.ctrl = OMAP343X_CTRL_BASE,
.prm = OMAP3430_PRM_BASE,
.cm = OMAP3430_CM_BASE,
- .uart1_phys = OMAP3_UART1_BASE,
- .uart2_phys = OMAP3_UART2_BASE,
- .uart3_phys = OMAP3_UART3_BASE,
- .uart4_phys = OMAP3_UART4_BASE, /* Only on 3630 */
};
void __init omap2_set_globals_3xxx(void)
@@ -140,10 +130,6 @@ static struct omap_globals omap4_globals = {
.prm = OMAP4430_PRM_BASE,
.cm = OMAP4430_CM_BASE,
.cm2 = OMAP4430_CM2_BASE,
- .uart1_phys = OMAP4_UART1_BASE,
- .uart2_phys = OMAP4_UART2_BASE,
- .uart3_phys = OMAP4_UART3_BASE,
- .uart4_phys = OMAP4_UART4_BASE,
};
void __init omap2_set_globals_443x(void)
diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c
index 7cc8071..a44c523 100644
--- a/arch/arm/mach-omap2/cpuidle34xx.c
+++ b/arch/arm/mach-omap2/cpuidle34xx.c
@@ -58,6 +58,7 @@ struct omap3_processor_cx {
u32 core_state;
u32 threshold;
u32 flags;
+ const char *desc;
};
struct omap3_processor_cx omap3_power_states[OMAP3_MAX_STATES];
@@ -365,6 +366,7 @@ void omap_init_power_states(void)
omap3_power_states[OMAP3_STATE_C1].mpu_state = PWRDM_POWER_ON;
omap3_power_states[OMAP3_STATE_C1].core_state = PWRDM_POWER_ON;
omap3_power_states[OMAP3_STATE_C1].flags = CPUIDLE_FLAG_TIME_VALID;
+ omap3_power_states[OMAP3_STATE_C1].desc = "MPU ON + CORE ON";
/* C2 . MPU WFI + Core inactive */
omap3_power_states[OMAP3_STATE_C2].valid =
@@ -380,6 +382,7 @@ void omap_init_power_states(void)
omap3_power_states[OMAP3_STATE_C2].core_state = PWRDM_POWER_ON;
omap3_power_states[OMAP3_STATE_C2].flags = CPUIDLE_FLAG_TIME_VALID |
CPUIDLE_FLAG_CHECK_BM;
+ omap3_power_states[OMAP3_STATE_C2].desc = "MPU ON + CORE ON";
/* C3 . MPU CSWR + Core inactive */
omap3_power_states[OMAP3_STATE_C3].valid =
@@ -395,6 +398,7 @@ void omap_init_power_states(void)
omap3_power_states[OMAP3_STATE_C3].core_state = PWRDM_POWER_ON;
omap3_power_states[OMAP3_STATE_C3].flags = CPUIDLE_FLAG_TIME_VALID |
CPUIDLE_FLAG_CHECK_BM;
+ omap3_power_states[OMAP3_STATE_C3].desc = "MPU RET + CORE ON";
/* C4 . MPU OFF + Core inactive */
omap3_power_states[OMAP3_STATE_C4].valid =
@@ -410,6 +414,7 @@ void omap_init_power_states(void)
omap3_power_states[OMAP3_STATE_C4].core_state = PWRDM_POWER_ON;
omap3_power_states[OMAP3_STATE_C4].flags = CPUIDLE_FLAG_TIME_VALID |
CPUIDLE_FLAG_CHECK_BM;
+ omap3_power_states[OMAP3_STATE_C4].desc = "MPU OFF + CORE ON";
/* C5 . MPU CSWR + Core CSWR*/
omap3_power_states[OMAP3_STATE_C5].valid =
@@ -425,6 +430,7 @@ void omap_init_power_states(void)
omap3_power_states[OMAP3_STATE_C5].core_state = PWRDM_POWER_RET;
omap3_power_states[OMAP3_STATE_C5].flags = CPUIDLE_FLAG_TIME_VALID |
CPUIDLE_FLAG_CHECK_BM;
+ omap3_power_states[OMAP3_STATE_C5].desc = "MPU RET + CORE RET";
/* C6 . MPU OFF + Core CSWR */
omap3_power_states[OMAP3_STATE_C6].valid =
@@ -440,6 +446,7 @@ void omap_init_power_states(void)
omap3_power_states[OMAP3_STATE_C6].core_state = PWRDM_POWER_RET;
omap3_power_states[OMAP3_STATE_C6].flags = CPUIDLE_FLAG_TIME_VALID |
CPUIDLE_FLAG_CHECK_BM;
+ omap3_power_states[OMAP3_STATE_C6].desc = "MPU OFF + CORE RET";
/* C7 . MPU OFF + Core OFF */
omap3_power_states[OMAP3_STATE_C7].valid =
@@ -455,6 +462,7 @@ void omap_init_power_states(void)
omap3_power_states[OMAP3_STATE_C7].core_state = PWRDM_POWER_OFF;
omap3_power_states[OMAP3_STATE_C7].flags = CPUIDLE_FLAG_TIME_VALID |
CPUIDLE_FLAG_CHECK_BM;
+ omap3_power_states[OMAP3_STATE_C7].desc = "MPU OFF + CORE OFF";
/*
* Erratum i583: implementation for ES rev < Es1.2 on 3630. We cannot
@@ -464,7 +472,7 @@ void omap_init_power_states(void)
if (IS_PM34XX_ERRATUM(PM_SDRC_WAKEUP_ERRATUM_i583)) {
omap3_power_states[OMAP3_STATE_C7].valid = 0;
cpuidle_params_table[OMAP3_STATE_C7].valid = 0;
- WARN_ONCE(1, "%s: core off state C7 disabled due to i583\n",
+ pr_warn("%s: core off state C7 disabled due to i583\n",
__func__);
}
}
@@ -512,6 +520,7 @@ int __init omap3_idle_init(void)
if (cx->type == OMAP3_STATE_C1)
dev->safe_state = state;
sprintf(state->name, "C%d", count+1);
+ strncpy(state->desc, cx->desc, CPUIDLE_DESC_LEN);
count++;
}
diff --git a/arch/arm/mach-omap2/include/mach/omap4-common.h b/arch/arm/mach-omap2/include/mach/omap4-common.h
index 5b0270b..de441c0 100644
--- a/arch/arm/mach-omap2/include/mach/omap4-common.h
+++ b/arch/arm/mach-omap2/include/mach/omap4-common.h
@@ -17,8 +17,12 @@
* wfi used in low power code. Directly opcode is used instead
* of instruction to avoid mulit-omap build break
*/
+#ifdef CONFIG_THUMB2_KERNEL
+#define do_wfi() __asm__ __volatile__ ("wfi" : : : "memory")
+#else
#define do_wfi() \
__asm__ __volatile__ (".word 0xe320f003" : : : "memory")
+#endif
#ifdef CONFIG_CACHE_L2X0
extern void __iomem *l2cache_base;
diff --git a/arch/arm/mach-omap2/mailbox.c b/arch/arm/mach-omap2/mailbox.c
index 6e15e3d..86d564a 100644
--- a/arch/arm/mach-omap2/mailbox.c
+++ b/arch/arm/mach-omap2/mailbox.c
@@ -138,10 +138,12 @@ static void omap2_mbox_disable_irq(struct omap_mbox *mbox,
omap_mbox_type_t irq)
{
struct omap_mbox2_priv *p = mbox->priv;
- u32 l, bit = (irq == IRQ_TX) ? p->notfull_bit : p->newmsg_bit;
- l = mbox_read_reg(p->irqdisable);
- l &= ~bit;
- mbox_write_reg(l, p->irqdisable);
+ u32 bit = (irq == IRQ_TX) ? p->notfull_bit : p->newmsg_bit;
+
+ if (!cpu_is_omap44xx())
+ bit = mbox_read_reg(p->irqdisable) & ~bit;
+
+ mbox_write_reg(bit, p->irqdisable);
}
static void omap2_mbox_ack_irq(struct omap_mbox *mbox,
diff --git a/arch/arm/mach-omap2/omap-headsmp.S b/arch/arm/mach-omap2/omap-headsmp.S
index 6ae937a..4ee6aec 100644
--- a/arch/arm/mach-omap2/omap-headsmp.S
+++ b/arch/arm/mach-omap2/omap-headsmp.S
@@ -45,5 +45,5 @@ hold: ldr r12,=0x103
* should now contain the SVC stack for this core
*/
b secondary_startup
-END(omap_secondary_startup)
+ENDPROC(omap_secondary_startup)
diff --git a/arch/arm/mach-omap2/omap44xx-smc.S b/arch/arm/mach-omap2/omap44xx-smc.S
index 1980dc3..e69d37d 100644
--- a/arch/arm/mach-omap2/omap44xx-smc.S
+++ b/arch/arm/mach-omap2/omap44xx-smc.S
@@ -29,7 +29,7 @@ ENTRY(omap_smc1)
dsb
smc #0
ldmfd sp!, {r2-r12, pc}
-END(omap_smc1)
+ENDPROC(omap_smc1)
ENTRY(omap_modify_auxcoreboot0)
stmfd sp!, {r1-r12, lr}
@@ -37,7 +37,7 @@ ENTRY(omap_modify_auxcoreboot0)
dsb
smc #0
ldmfd sp!, {r1-r12, pc}
-END(omap_modify_auxcoreboot0)
+ENDPROC(omap_modify_auxcoreboot0)
ENTRY(omap_auxcoreboot_addr)
stmfd sp!, {r2-r12, lr}
@@ -45,7 +45,7 @@ ENTRY(omap_auxcoreboot_addr)
dsb
smc #0
ldmfd sp!, {r2-r12, pc}
-END(omap_auxcoreboot_addr)
+ENDPROC(omap_auxcoreboot_addr)
ENTRY(omap_read_auxcoreboot0)
stmfd sp!, {r2-r12, lr}
@@ -54,4 +54,4 @@ ENTRY(omap_read_auxcoreboot0)
smc #0
mov r0, r0, lsr #9
ldmfd sp!, {r2-r12, pc}
-END(omap_read_auxcoreboot0)
+ENDPROC(omap_read_auxcoreboot0)
diff --git a/arch/arm/mach-omap2/omap_twl.c b/arch/arm/mach-omap2/omap_twl.c
index ad8c18a..0a8e74e 100644
--- a/arch/arm/mach-omap2/omap_twl.c
+++ b/arch/arm/mach-omap2/omap_twl.c
@@ -59,8 +59,15 @@
static bool is_offset_valid;
static u8 smps_offset;
+/*
+ * Flag to ensure Smartreflex bit in TWL
+ * being cleared in board file is not overwritten.
+ */
+static bool __initdata twl_sr_enable_autoinit;
+#define TWL4030_DCDC_GLOBAL_CFG 0x06
#define REG_SMPS_OFFSET 0xE0
+#define SMARTREFLEX_ENABLE BIT(3)
static unsigned long twl4030_vsel_to_uv(const u8 vsel)
{
@@ -269,6 +276,18 @@ int __init omap3_twl_init(void)
omap3_core_volt_info.vp_vddmax = OMAP3630_VP2_VLIMITTO_VDDMAX;
}
+ /*
+ * The smartreflex bit on twl4030 specifies if the setting of voltage
+ * is done over the I2C_SR path. Since this setting is independent of
+ * the actual usage of smartreflex AVS module, we enable TWL SR bit
+ * by default irrespective of whether smartreflex AVS module is enabled
+ * on the OMAP side or not. This is because without this bit enabled,
+ * the voltage scaling through vp forceupdate/bypass mechanism of
+ * voltage scaling will not function on TWL over I2C_SR.
+ */
+ if (!twl_sr_enable_autoinit)
+ omap3_twl_set_sr_bit(true);
+
voltdm = omap_voltage_domain_lookup("mpu");
omap_voltage_register_pmic(voltdm, &omap3_mpu_volt_info);
@@ -277,3 +296,44 @@ int __init omap3_twl_init(void)
return 0;
}
+
+/**
+ * omap3_twl_set_sr_bit() - Set/Clear SR bit on TWL
+ * @enable: enable SR mode in twl or not
+ *
+ * If 'enable' is true, enables Smartreflex bit on TWL 4030 to make sure
+ * voltage scaling through OMAP SR works. Else, the smartreflex bit
+ * on twl4030 is cleared as there are platforms which use OMAP3 and T2 but
+ * use Synchronized Scaling Hardware Strategy (ENABLE_VMODE=1) and Direct
+ * Strategy Software Scaling Mode (ENABLE_VMODE=0), for setting the voltages,
+ * in those scenarios this bit is to be cleared (enable = false).
+ *
+ * Returns 0 on sucess, error is returned if I2C read/write fails.
+ */
+int __init omap3_twl_set_sr_bit(bool enable)
+{
+ u8 temp;
+ int ret;
+ if (twl_sr_enable_autoinit)
+ pr_warning("%s: unexpected multiple calls\n", __func__);
+
+ ret = twl_i2c_read_u8(TWL4030_MODULE_PM_RECEIVER, &temp,
+ TWL4030_DCDC_GLOBAL_CFG);
+ if (ret)
+ goto err;
+
+ if (enable)
+ temp |= SMARTREFLEX_ENABLE;
+ else
+ temp &= ~SMARTREFLEX_ENABLE;
+
+ ret = twl_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, temp,
+ TWL4030_DCDC_GLOBAL_CFG);
+ if (!ret) {
+ twl_sr_enable_autoinit = true;
+ return 0;
+ }
+err:
+ pr_err("%s: Error access to TWL4030 (%d)\n", __func__, ret);
+ return ret;
+}
diff --git a/arch/arm/mach-omap2/opp3xxx_data.c b/arch/arm/mach-omap2/opp3xxx_data.c
index 3bba920..d2bd1bd 100644
--- a/arch/arm/mach-omap2/opp3xxx_data.c
+++ b/arch/arm/mach-omap2/opp3xxx_data.c
@@ -23,6 +23,7 @@
#include "control.h"
#include "omap_opp_data.h"
+#include "pm.h"
/* 34xx */
@@ -152,7 +153,7 @@ static struct omap_opp_def __initdata omap36xx_opp_def_list[] = {
/**
* omap3_opp_init() - initialize omap3 opp table
*/
-static int __init omap3_opp_init(void)
+int __init omap3_opp_init(void)
{
int r = -ENODEV;
diff --git a/arch/arm/mach-omap2/opp4xxx_data.c b/arch/arm/mach-omap2/opp4xxx_data.c
index fdee8d4..5030794 100644
--- a/arch/arm/mach-omap2/opp4xxx_data.c
+++ b/arch/arm/mach-omap2/opp4xxx_data.c
@@ -24,6 +24,7 @@
#include "control.h"
#include "omap_opp_data.h"
+#include "pm.h"
/*
* Structures containing OMAP4430 voltage supported and various
@@ -83,7 +84,7 @@ static struct omap_opp_def __initdata omap44xx_opp_def_list[] = {
/**
* omap4_opp_init() - initialize omap4 opp table
*/
-static int __init omap4_opp_init(void)
+int __init omap4_opp_init(void)
{
int r = -ENODEV;
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index 2c3a253..30af335 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -83,7 +83,9 @@ static int _init_omap_device(char *name, struct device **new_dev)
static void omap2_init_processor_devices(void)
{
_init_omap_device("mpu", &mpu_dev);
- _init_omap_device("iva", &iva_dev);
+ if (omap3_has_iva())
+ _init_omap_device("iva", &iva_dev);
+
if (cpu_is_omap44xx()) {
_init_omap_device("l3_main_1", &l3_dev);
_init_omap_device("dsp", &dsp_dev);
diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
index 1c1b0ab..f4a5f71 100644
--- a/arch/arm/mach-omap2/pm.h
+++ b/arch/arm/mach-omap2/pm.h
@@ -127,6 +127,7 @@ static inline void omap_enable_smartreflex_on_init(void) {}
#ifdef CONFIG_TWL4030_CORE
extern int omap3_twl_init(void);
extern int omap4_twl_init(void);
+extern int omap3_twl_set_sr_bit(bool enable);
#else
static inline int omap3_twl_init(void)
{
diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c
index 96907da..df3ded6 100644
--- a/arch/arm/mach-omap2/pm24xx.c
+++ b/arch/arm/mach-omap2/pm24xx.c
@@ -363,9 +363,6 @@ static const struct platform_suspend_ops __initdata omap_pm_ops;
/* XXX This function should be shareable between OMAP2xxx and OMAP3 */
static int __init clkdms_setup(struct clockdomain *clkdm, void *unused)
{
- clkdm_clear_all_wkdeps(clkdm);
- clkdm_clear_all_sleepdeps(clkdm);
-
if (clkdm->flags & CLKDM_CAN_ENABLE_AUTO)
clkdm_allow_idle(clkdm);
else if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP &&
@@ -414,10 +411,7 @@ static void __init prcm_setup_regs(void)
pwrdm_set_next_pwrst(pwrdm, PWRDM_POWER_OFF);
clkdm_sleep(gfx_clkdm);
- /*
- * Clear clockdomain wakeup dependencies and enable
- * hardware-supervised idle for all clkdms
- */
+ /* Enable hardware-supervised idle for all clkdms */
clkdm_for_each(clkdms_setup, NULL);
clkdm_add_wkdep(mpu_clkdm, wkup_clkdm);
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 3d6a00e..b5361a12 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -311,11 +311,6 @@ static irqreturn_t prcm_interrupt_handler (int irq, void *dev_id)
return IRQ_HANDLED;
}
-static void restore_control_register(u32 val)
-{
- __asm__ __volatile__ ("mcr p15, 0, %0, c1, c0, 0" : : "r" (val));
-}
-
/* Function to restore the table entry that was modified for enabling MMU */
static void restore_table_entry(void)
{
@@ -337,7 +332,7 @@ static void restore_table_entry(void)
control_reg_value = __raw_readl(scratchpad_address
+ OMAP343X_CONTROL_REG_VALUE_OFFSET);
/* This will enable caches and prediction */
- restore_control_register(control_reg_value);
+ set_cr(control_reg_value);
}
void omap_sram_idle(void)
@@ -693,20 +688,6 @@ static void __init prcm_setup_regs(void)
u32 omap3630_grpsel_uart4_mask = cpu_is_omap3630() ?
OMAP3630_GRPSEL_UART4_MASK : 0;
- /* XXX Reset all wkdeps. This should be done when initializing
- * powerdomains */
- omap2_prm_write_mod_reg(0, OMAP3430_IVA2_MOD, PM_WKDEP);
- omap2_prm_write_mod_reg(0, MPU_MOD, PM_WKDEP);
- omap2_prm_write_mod_reg(0, OMAP3430_DSS_MOD, PM_WKDEP);
- omap2_prm_write_mod_reg(0, OMAP3430_NEON_MOD, PM_WKDEP);
- omap2_prm_write_mod_reg(0, OMAP3430_CAM_MOD, PM_WKDEP);
- omap2_prm_write_mod_reg(0, OMAP3430_PER_MOD, PM_WKDEP);
- if (omap_rev() > OMAP3430_REV_ES1_0) {
- omap2_prm_write_mod_reg(0, OMAP3430ES2_SGX_MOD, PM_WKDEP);
- omap2_prm_write_mod_reg(0, OMAP3430ES2_USBHOST_MOD, PM_WKDEP);
- } else
- omap2_prm_write_mod_reg(0, GFX_MOD, PM_WKDEP);
-
/* XXX This should be handled by hwmod code or SCM init code */
omap_ctrl_writel(OMAP3430_AUTOIDLE_MASK, OMAP2_CONTROL_SYSCONFIG);
@@ -808,8 +789,7 @@ void omap3_pm_off_mode_enable(int enable)
pwrst->pwrdm == core_pwrdm &&
state == PWRDM_POWER_OFF) {
pwrst->next_state = PWRDM_POWER_RET;
- WARN_ONCE(1,
- "%s: Core OFF disabled due to errata i583\n",
+ pr_warn("%s: Core OFF disabled due to errata i583\n",
__func__);
} else {
pwrst->next_state = state;
diff --git a/arch/arm/mach-omap2/sleep34xx.S b/arch/arm/mach-omap2/sleep34xx.S
index 98d8232..e60ac1f 100644
--- a/arch/arm/mach-omap2/sleep34xx.S
+++ b/arch/arm/mach-omap2/sleep34xx.S
@@ -64,6 +64,11 @@
#define SDRC_DLLA_STATUS_V OMAP34XX_SDRC_REGADDR(SDRC_DLLA_STATUS)
#define SDRC_DLLA_CTRL_V OMAP34XX_SDRC_REGADDR(SDRC_DLLA_CTRL)
+/*
+ * This file needs be built unconditionally as ARM to interoperate correctly
+ * with non-Thumb-2-capable firmware.
+ */
+ .arm
/*
* API functions
@@ -82,6 +87,8 @@ ENTRY(get_restore_pointer)
stmfd sp!, {lr} @ save registers on stack
adr r0, restore
ldmfd sp!, {pc} @ restore regs and return
+ENDPROC(get_restore_pointer)
+ .align
ENTRY(get_restore_pointer_sz)
.word . - get_restore_pointer
@@ -91,6 +98,8 @@ ENTRY(get_omap3630_restore_pointer)
stmfd sp!, {lr} @ save registers on stack
adr r0, restore_3630
ldmfd sp!, {pc} @ restore regs and return
+ENDPROC(get_omap3630_restore_pointer)
+ .align
ENTRY(get_omap3630_restore_pointer_sz)
.word . - get_omap3630_restore_pointer
@@ -100,6 +109,8 @@ ENTRY(get_es3_restore_pointer)
stmfd sp!, {lr} @ save registers on stack
adr r0, restore_es3
ldmfd sp!, {pc} @ restore regs and return
+ENDPROC(get_es3_restore_pointer)
+ .align
ENTRY(get_es3_restore_pointer_sz)
.word . - get_es3_restore_pointer
@@ -113,8 +124,10 @@ ENTRY(enable_omap3630_toggle_l2_on_restore)
stmfd sp!, {lr} @ save registers on stack
/* Setup so that we will disable and enable l2 */
mov r1, #0x1
- str r1, l2dis_3630
+ adrl r2, l2dis_3630 @ may be too distant for plain adr
+ str r1, [r2]
ldmfd sp!, {pc} @ restore regs and return
+ENDPROC(enable_omap3630_toggle_l2_on_restore)
.text
/* Function to call rom code to save secure ram context */
@@ -131,20 +144,22 @@ ENTRY(save_secure_ram_context)
mov r1, #0 @ set task id for ROM code in r1
mov r2, #4 @ set some flags in r2, r6
mov r6, #0xff
- mcr p15, 0, r0, c7, c10, 4 @ data write barrier
- mcr p15, 0, r0, c7, c10, 5 @ data memory barrier
- .word 0xE1600071 @ call SMI monitor (smi #1)
+ dsb @ data write barrier
+ dmb @ data memory barrier
+ smc #1 @ call SMI monitor (smi #1)
nop
nop
nop
nop
ldmfd sp!, {r1-r12, pc}
+ .align
sram_phy_addr_mask:
.word SRAM_BASE_P
high_mask:
.word 0xffff
api_params:
.word 0x4, 0x0, 0x0, 0x1, 0x1
+ENDPROC(save_secure_ram_context)
ENTRY(save_secure_ram_context_sz)
.word . - save_secure_ram_context
@@ -173,12 +188,12 @@ ENTRY(omap34xx_cpu_suspend)
stmfd sp!, {r0-r12, lr} @ save registers on stack
/*
- * r0 contains restore pointer in sdram
+ * r0 contains CPU context save/restore pointer in sdram
* r1 contains information about saving context:
* 0 - No context lost
* 1 - Only L1 and logic lost
- * 2 - Only L2 lost
- * 3 - Both L1 and L2 lost
+ * 2 - Only L2 lost (Even L1 is retained we clean it along with L2)
+ * 3 - Both L1 and L2 lost and logic lost
*/
/* Directly jump to WFI is the context save is not required */
@@ -199,89 +214,74 @@ save_context_wfi:
beq clean_caches
l1_logic_lost:
- /* Store sp and spsr to SDRAM */
- mov r4, sp
- mrs r5, spsr
- mov r6, lr
+ mov r4, sp @ Store sp
+ mrs r5, spsr @ Store spsr
+ mov r6, lr @ Store lr
stmia r8!, {r4-r6}
- /* Save all ARM registers */
- /* Coprocessor access control register */
- mrc p15, 0, r6, c1, c0, 2
- stmia r8!, {r6}
- /* TTBR0, TTBR1 and Translation table base control */
- mrc p15, 0, r4, c2, c0, 0
- mrc p15, 0, r5, c2, c0, 1
- mrc p15, 0, r6, c2, c0, 2
- stmia r8!, {r4-r6}
- /*
- * Domain access control register, data fault status register,
- * and instruction fault status register
- */
- mrc p15, 0, r4, c3, c0, 0
- mrc p15, 0, r5, c5, c0, 0
- mrc p15, 0, r6, c5, c0, 1
- stmia r8!, {r4-r6}
- /*
- * Data aux fault status register, instruction aux fault status,
- * data fault address register and instruction fault address register
- */
- mrc p15, 0, r4, c5, c1, 0
- mrc p15, 0, r5, c5, c1, 1
- mrc p15, 0, r6, c6, c0, 0
- mrc p15, 0, r7, c6, c0, 2
- stmia r8!, {r4-r7}
- /*
- * user r/w thread and process ID, user r/o thread and process ID,
- * priv only thread and process ID, cache size selection
- */
- mrc p15, 0, r4, c13, c0, 2
- mrc p15, 0, r5, c13, c0, 3
- mrc p15, 0, r6, c13, c0, 4
- mrc p15, 2, r7, c0, c0, 0
+
+ mrc p15, 0, r4, c1, c0, 2 @ Coprocessor access control register
+ mrc p15, 0, r5, c2, c0, 0 @ TTBR0
+ mrc p15, 0, r6, c2, c0, 1 @ TTBR1
+ mrc p15, 0, r7, c2, c0, 2 @ TTBCR
stmia r8!, {r4-r7}
- /* Data TLB lockdown, instruction TLB lockdown registers */
- mrc p15, 0, r5, c10, c0, 0
- mrc p15, 0, r6, c10, c0, 1
- stmia r8!, {r5-r6}
- /* Secure or non secure vector base address, FCSE PID, Context PID*/
- mrc p15, 0, r4, c12, c0, 0
- mrc p15, 0, r5, c13, c0, 0
- mrc p15, 0, r6, c13, c0, 1
- stmia r8!, {r4-r6}
- /* Primary remap, normal remap registers */
- mrc p15, 0, r4, c10, c2, 0
- mrc p15, 0, r5, c10, c2, 1
- stmia r8!,{r4-r5}
- /* Store current cpsr*/
- mrs r2, cpsr
- stmia r8!, {r2}
+ mrc p15, 0, r4, c3, c0, 0 @ Domain access Control Register
+ mrc p15, 0, r5, c10, c2, 0 @ PRRR
+ mrc p15, 0, r6, c10, c2, 1 @ NMRR
+ stmia r8!,{r4-r6}
- mrc p15, 0, r4, c1, c0, 0
- /* save control register */
+ mrc p15, 0, r4, c13, c0, 1 @ Context ID
+ mrc p15, 0, r5, c13, c0, 2 @ User r/w thread and process ID
+ mrc p15, 0, r6, c12, c0, 0 @ Secure or NS vector base address
+ mrs r7, cpsr @ Store current cpsr
+ stmia r8!, {r4-r7}
+
+ mrc p15, 0, r4, c1, c0, 0 @ save control register
stmia r8!, {r4}
clean_caches:
/*
- * Clean Data or unified cache to POU
- * How to invalidate only L1 cache???? - #FIX_ME#
- * mcr p15, 0, r11, c7, c11, 1
- */
- cmp r1, #0x1 @ Check whether L2 inval is required
- beq omap3_do_wfi
-
-clean_l2:
- /*
* jump out to kernel flush routine
* - reuse that code is better
* - it executes in a cached space so is faster than refetch per-block
* - should be faster and will change with kernel
* - 'might' have to copy address, load and jump to it
+ * Flush all data from the L1 data cache before disabling
+ * SCTLR.C bit.
*/
ldr r1, kernel_flush
mov lr, pc
bx r1
+ /*
+ * Clear the SCTLR.C bit to prevent further data cache
+ * allocation. Clearing SCTLR.C would make all the data accesses
+ * strongly ordered and would not hit the cache.
+ */
+ mrc p15, 0, r0, c1, c0, 0
+ bic r0, r0, #(1 << 2) @ Disable the C bit
+ mcr p15, 0, r0, c1, c0, 0
+ isb
+
+ /*
+ * Invalidate L1 data cache. Even though only invalidate is
+ * necessary exported flush API is used here. Doing clean
+ * on already clean cache would be almost NOP.
+ */
+ ldr r1, kernel_flush
+ blx r1
+ /*
+ * The kernel doesn't interwork: v7_flush_dcache_all in particluar will
+ * always return in Thumb state when CONFIG_THUMB2_KERNEL is enabled.
+ * This sequence switches back to ARM. Note that .align may insert a
+ * nop: bx pc needs to be word-aligned in order to work.
+ */
+ THUMB( .thumb )
+ THUMB( .align )
+ THUMB( bx pc )
+ THUMB( nop )
+ .arm
+
omap3_do_wfi:
ldr r4, sdrc_power @ read the SDRC_POWER register
ldr r5, [r4] @ read the contents of SDRC_POWER
@@ -289,9 +289,8 @@ omap3_do_wfi:
str r5, [r4] @ write back to SDRC_POWER register
/* Data memory barrier and Data sync barrier */
- mov r1, #0
- mcr p15, 0, r1, c7, c10, 4
- mcr p15, 0, r1, c7, c10, 5
+ dsb
+ dmb
/*
* ===================================
@@ -317,6 +316,12 @@ omap3_do_wfi:
nop
bl wait_sdrc_ok
+ mrc p15, 0, r0, c1, c0, 0
+ tst r0, #(1 << 2) @ Check C bit enabled?
+ orreq r0, r0, #(1 << 2) @ Enable the C bit if cleared
+ mcreq p15, 0, r0, c1, c0, 0
+ isb
+
/*
* ===================================
* == Exit point from non-OFF modes ==
@@ -406,9 +411,9 @@ skipl2dis:
mov r2, #4 @ set some flags in r2, r6
mov r6, #0xff
adr r3, l2_inv_api_params @ r3 points to dummy parameters
- mcr p15, 0, r0, c7, c10, 4 @ data write barrier
- mcr p15, 0, r0, c7, c10, 5 @ data memory barrier
- .word 0xE1600071 @ call SMI monitor (smi #1)
+ dsb @ data write barrier
+ dmb @ data memory barrier
+ smc #1 @ call SMI monitor (smi #1)
/* Write to Aux control register to set some bits */
mov r0, #42 @ set service ID for PPA
mov r12, r0 @ copy secure Service ID in r12
@@ -417,9 +422,9 @@ skipl2dis:
mov r6, #0xff
ldr r4, scratchpad_base
ldr r3, [r4, #0xBC] @ r3 points to parameters
- mcr p15, 0, r0, c7, c10, 4 @ data write barrier
- mcr p15, 0, r0, c7, c10, 5 @ data memory barrier
- .word 0xE1600071 @ call SMI monitor (smi #1)
+ dsb @ data write barrier
+ dmb @ data memory barrier
+ smc #1 @ call SMI monitor (smi #1)
#ifdef CONFIG_OMAP3_L2_AUX_SECURE_SAVE_RESTORE
/* Restore L2 aux control register */
@@ -432,29 +437,30 @@ skipl2dis:
ldr r4, scratchpad_base
ldr r3, [r4, #0xBC]
adds r3, r3, #8 @ r3 points to parameters
- mcr p15, 0, r0, c7, c10, 4 @ data write barrier
- mcr p15, 0, r0, c7, c10, 5 @ data memory barrier
- .word 0xE1600071 @ call SMI monitor (smi #1)
+ dsb @ data write barrier
+ dmb @ data memory barrier
+ smc #1 @ call SMI monitor (smi #1)
#endif
b logic_l1_restore
+ .align
l2_inv_api_params:
.word 0x1, 0x00
l2_inv_gp:
/* Execute smi to invalidate L2 cache */
mov r12, #0x1 @ set up to invalidate L2
- .word 0xE1600070 @ Call SMI monitor (smieq)
+ smc #0 @ Call SMI monitor (smieq)
/* Write to Aux control register to set some bits */
ldr r4, scratchpad_base
ldr r3, [r4,#0xBC]
ldr r0, [r3,#4]
mov r12, #0x3
- .word 0xE1600070 @ Call SMI monitor (smieq)
+ smc #0 @ Call SMI monitor (smieq)
ldr r4, scratchpad_base
ldr r3, [r4,#0xBC]
ldr r0, [r3,#12]
mov r12, #0x2
- .word 0xE1600070 @ Call SMI monitor (smieq)
+ smc #0 @ Call SMI monitor (smieq)
logic_l1_restore:
ldr r1, l2dis_3630
cmp r1, #0x1 @ Test if L2 re-enable needed on 3630
@@ -473,68 +479,29 @@ skipl2reen:
ldr r4, scratchpad_base
ldr r3, [r4,#0xBC]
adds r3, r3, #16
+
ldmia r3!, {r4-r6}
- mov sp, r4
- msr spsr_cxsf, r5
- mov lr, r6
-
- ldmia r3!, {r4-r9}
- /* Coprocessor access Control Register */
- mcr p15, 0, r4, c1, c0, 2
-
- /* TTBR0 */
- MCR p15, 0, r5, c2, c0, 0
- /* TTBR1 */
- MCR p15, 0, r6, c2, c0, 1
- /* Translation table base control register */
- MCR p15, 0, r7, c2, c0, 2
- /* Domain access Control Register */
- MCR p15, 0, r8, c3, c0, 0
- /* Data fault status Register */
- MCR p15, 0, r9, c5, c0, 0
-
- ldmia r3!,{r4-r8}
- /* Instruction fault status Register */
- MCR p15, 0, r4, c5, c0, 1
- /* Data Auxiliary Fault Status Register */
- MCR p15, 0, r5, c5, c1, 0
- /* Instruction Auxiliary Fault Status Register*/
- MCR p15, 0, r6, c5, c1, 1
- /* Data Fault Address Register */
- MCR p15, 0, r7, c6, c0, 0
- /* Instruction Fault Address Register*/
- MCR p15, 0, r8, c6, c0, 2
- ldmia r3!,{r4-r7}
+ mov sp, r4 @ Restore sp
+ msr spsr_cxsf, r5 @ Restore spsr
+ mov lr, r6 @ Restore lr
+
+ ldmia r3!, {r4-r7}
+ mcr p15, 0, r4, c1, c0, 2 @ Coprocessor access Control Register
+ mcr p15, 0, r5, c2, c0, 0 @ TTBR0
+ mcr p15, 0, r6, c2, c0, 1 @ TTBR1
+ mcr p15, 0, r7, c2, c0, 2 @ TTBCR
+
+ ldmia r3!,{r4-r6}
+ mcr p15, 0, r4, c3, c0, 0 @ Domain access Control Register
+ mcr p15, 0, r5, c10, c2, 0 @ PRRR
+ mcr p15, 0, r6, c10, c2, 1 @ NMRR
+
- /* User r/w thread and process ID */
- MCR p15, 0, r4, c13, c0, 2
- /* User ro thread and process ID */
- MCR p15, 0, r5, c13, c0, 3
- /* Privileged only thread and process ID */
- MCR p15, 0, r6, c13, c0, 4
- /* Cache size selection */
- MCR p15, 2, r7, c0, c0, 0
- ldmia r3!,{r4-r8}
- /* Data TLB lockdown registers */
- MCR p15, 0, r4, c10, c0, 0
- /* Instruction TLB lockdown registers */
- MCR p15, 0, r5, c10, c0, 1
- /* Secure or Nonsecure Vector Base Address */
- MCR p15, 0, r6, c12, c0, 0
- /* FCSE PID */
- MCR p15, 0, r7, c13, c0, 0
- /* Context PID */
- MCR p15, 0, r8, c13, c0, 1
-
- ldmia r3!,{r4-r5}
- /* Primary memory remap register */
- MCR p15, 0, r4, c10, c2, 0
- /* Normal memory remap register */
- MCR p15, 0, r5, c10, c2, 1
-
- /* Restore cpsr */
- ldmia r3!,{r4} @ load CPSR from SDRAM
- msr cpsr, r4 @ store cpsr
+ ldmia r3!,{r4-r7}
+ mcr p15, 0, r4, c13, c0, 1 @ Context ID
+ mcr p15, 0, r5, c13, c0, 2 @ User r/w thread and process ID
+ mrc p15, 0, r6, c12, c0, 0 @ Secure or NS vector base address
+ msr cpsr, r7 @ store cpsr
/* Enabling MMU here */
mrc p15, 0, r7, c2, c0, 2 @ Read TTBRControl
@@ -592,12 +559,17 @@ usettbr0:
ldr r2, cache_pred_disable_mask
and r4, r2
mcr p15, 0, r4, c1, c0, 0
+ dsb
+ isb
+ ldr r0, =restoremmu_on
+ bx r0
/*
* ==============================
* == Exit point from OFF mode ==
* ==============================
*/
+restoremmu_on:
ldmfd sp!, {r0-r12, pc} @ restore regs and return
@@ -607,6 +579,7 @@ usettbr0:
/* This function implements the erratum ID i443 WA, applies to 34xx >= ES3.0 */
.text
+ .align 3
ENTRY(es3_sdrc_fix)
ldr r4, sdrc_syscfg @ get config addr
ldr r5, [r4] @ get value
@@ -634,6 +607,7 @@ ENTRY(es3_sdrc_fix)
str r5, [r4] @ kick off refreshes
bx lr
+ .align
sdrc_syscfg:
.word SDRC_SYSCONFIG_P
sdrc_mr_0:
@@ -648,6 +622,7 @@ sdrc_emr2_1:
.word SDRC_EMR2_1_P
sdrc_manual_1:
.word SDRC_MANUAL_1_P
+ENDPROC(es3_sdrc_fix)
ENTRY(es3_sdrc_fix_sz)
.word . - es3_sdrc_fix
@@ -682,6 +657,12 @@ wait_sdrc_ready:
bic r5, r5, #0x40
str r5, [r4]
+/*
+ * PC-relative stores lead to undefined behaviour in Thumb-2: use a r7 as a
+ * base instead.
+ * Be careful not to clobber r7 when maintaing this code.
+ */
+
is_dll_in_lock_mode:
/* Is dll in lock mode? */
ldr r4, sdrc_dlla_ctrl
@@ -689,10 +670,11 @@ is_dll_in_lock_mode:
tst r5, #0x4
bxne lr @ Return if locked
/* wait till dll locks */
+ adr r7, kick_counter
wait_dll_lock_timed:
ldr r4, wait_dll_lock_counter
add r4, r4, #1
- str r4, wait_dll_lock_counter
+ str r4, [r7, #wait_dll_lock_counter - kick_counter]
ldr r4, sdrc_dlla_status
/* Wait 20uS for lock */
mov r6, #8
@@ -718,9 +700,10 @@ kick_dll:
dsb
ldr r4, kick_counter
add r4, r4, #1
- str r4, kick_counter
+ str r4, [r7] @ kick_counter
b wait_dll_lock_timed
+ .align
cm_idlest1_core:
.word CM_IDLEST1_CORE_V
cm_idlest_ckgen:
@@ -763,6 +746,7 @@ kick_counter:
.word 0
wait_dll_lock_counter:
.word 0
+ENDPROC(omap34xx_cpu_suspend)
ENTRY(omap34xx_cpu_suspend_sz)
.word . - omap34xx_cpu_suspend
diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c
index cf0bf5d..8f674c9 100644
--- a/arch/arm/mach-omap2/smartreflex.c
+++ b/arch/arm/mach-omap2/smartreflex.c
@@ -54,6 +54,7 @@ struct omap_sr {
struct list_head node;
struct omap_sr_nvalue_table *nvalue_table;
struct voltagedomain *voltdm;
+ struct dentry *dbg_dir;
};
/* sr_list contains all the instances of smartreflex module */
@@ -260,9 +261,11 @@ static int sr_late_init(struct omap_sr *sr_info)
if (sr_class->class_type == SR_CLASS2 &&
sr_class->notify_flags && sr_info->irq) {
- name = kzalloc(SMARTREFLEX_NAME_LEN + 1, GFP_KERNEL);
- strcpy(name, "sr_");
- strcat(name, sr_info->voltdm->name);
+ name = kasprintf(GFP_KERNEL, "sr_%s", sr_info->voltdm->name);
+ if (name == NULL) {
+ ret = -ENOMEM;
+ goto error;
+ }
ret = request_irq(sr_info->irq, sr_interrupt,
0, name, (void *)sr_info);
if (ret)
@@ -282,6 +285,7 @@ error:
dev_err(&sr_info->pdev->dev, "%s: ERROR in registering"
"interrupt handler. Smartreflex will"
"not function as desired\n", __func__);
+ kfree(name);
kfree(sr_info);
return ret;
}
@@ -820,7 +824,7 @@ static int __init omap_sr_probe(struct platform_device *pdev)
struct omap_sr *sr_info = kzalloc(sizeof(struct omap_sr), GFP_KERNEL);
struct omap_sr_data *pdata = pdev->dev.platform_data;
struct resource *mem, *irq;
- struct dentry *vdd_dbg_dir, *dbg_dir, *nvalue_dir;
+ struct dentry *vdd_dbg_dir, *nvalue_dir;
struct omap_volt_data *volt_data;
int i, ret = 0;
@@ -879,7 +883,7 @@ static int __init omap_sr_probe(struct platform_device *pdev)
ret = sr_late_init(sr_info);
if (ret) {
pr_warning("%s: Error in SR late init\n", __func__);
- return ret;
+ goto err_release_region;
}
}
@@ -890,30 +894,34 @@ static int __init omap_sr_probe(struct platform_device *pdev)
* not try to create rest of the debugfs entries.
*/
vdd_dbg_dir = omap_voltage_get_dbgdir(sr_info->voltdm);
- if (!vdd_dbg_dir)
- return -EINVAL;
+ if (!vdd_dbg_dir) {
+ ret = -EINVAL;
+ goto err_release_region;
+ }
- dbg_dir = debugfs_create_dir("smartreflex", vdd_dbg_dir);
- if (IS_ERR(dbg_dir)) {
+ sr_info->dbg_dir = debugfs_create_dir("smartreflex", vdd_dbg_dir);
+ if (IS_ERR(sr_info->dbg_dir)) {
dev_err(&pdev->dev, "%s: Unable to create debugfs directory\n",
__func__);
- return PTR_ERR(dbg_dir);
+ ret = PTR_ERR(sr_info->dbg_dir);
+ goto err_release_region;
}
- (void) debugfs_create_file("autocomp", S_IRUGO | S_IWUSR, dbg_dir,
- (void *)sr_info, &pm_sr_fops);
- (void) debugfs_create_x32("errweight", S_IRUGO, dbg_dir,
+ (void) debugfs_create_file("autocomp", S_IRUGO | S_IWUSR,
+ sr_info->dbg_dir, (void *)sr_info, &pm_sr_fops);
+ (void) debugfs_create_x32("errweight", S_IRUGO, sr_info->dbg_dir,
&sr_info->err_weight);
- (void) debugfs_create_x32("errmaxlimit", S_IRUGO, dbg_dir,
+ (void) debugfs_create_x32("errmaxlimit", S_IRUGO, sr_info->dbg_dir,
&sr_info->err_maxlimit);
- (void) debugfs_create_x32("errminlimit", S_IRUGO, dbg_dir,
+ (void) debugfs_create_x32("errminlimit", S_IRUGO, sr_info->dbg_dir,
&sr_info->err_minlimit);
- nvalue_dir = debugfs_create_dir("nvalue", dbg_dir);
+ nvalue_dir = debugfs_create_dir("nvalue", sr_info->dbg_dir);
if (IS_ERR(nvalue_dir)) {
dev_err(&pdev->dev, "%s: Unable to create debugfs directory"
"for n-values\n", __func__);
- return PTR_ERR(nvalue_dir);
+ ret = PTR_ERR(nvalue_dir);
+ goto err_release_region;
}
omap_voltage_get_volttable(sr_info->voltdm, &volt_data);
@@ -922,23 +930,15 @@ static int __init omap_sr_probe(struct platform_device *pdev)
" corresponding vdd vdd_%s. Cannot create debugfs"
"entries for n-values\n",
__func__, sr_info->voltdm->name);
- return -ENODATA;
+ ret = -ENODATA;
+ goto err_release_region;
}
for (i = 0; i < sr_info->nvalue_count; i++) {
- char *name;
- char volt_name[32];
-
- name = kzalloc(NVALUE_NAME_LEN + 1, GFP_KERNEL);
- if (!name) {
- dev_err(&pdev->dev, "%s: Unable to allocate memory"
- " for n-value directory name\n", __func__);
- return -ENOMEM;
- }
+ char name[NVALUE_NAME_LEN + 1];
- strcpy(name, "volt_");
- sprintf(volt_name, "%d", volt_data[i].volt_nominal);
- strcat(name, volt_name);
+ snprintf(name, sizeof(name), "volt_%d",
+ volt_data[i].volt_nominal);
(void) debugfs_create_x32(name, S_IRUGO | S_IWUSR, nvalue_dir,
&(sr_info->nvalue_table[i].nvalue));
}
@@ -973,6 +973,8 @@ static int __devexit omap_sr_remove(struct platform_device *pdev)
if (sr_info->autocomp_active)
sr_stop_vddautocomp(sr_info);
+ if (sr_info->dbg_dir)
+ debugfs_remove_recursive(sr_info->dbg_dir);
list_del(&sr_info->node);
iounmap(sr_info->base);
diff --git a/arch/arm/mach-omap2/sram34xx.S b/arch/arm/mach-omap2/sram34xx.S
index 7f893a2..1078bfb 100644
--- a/arch/arm/mach-omap2/sram34xx.S
+++ b/arch/arm/mach-omap2/sram34xx.S
@@ -34,6 +34,12 @@
#include "sdrc.h"
#include "cm2xxx_3xxx.h"
+/*
+ * This file needs be built unconditionally as ARM to interoperate correctly
+ * with non-Thumb-2-capable firmware.
+ */
+ .arm
+
.text
/* r1 parameters */
@@ -116,24 +122,36 @@ ENTRY(omap3_sram_configure_core_dpll)
@ pull the extra args off the stack
@ and store them in SRAM
+
+/*
+ * PC-relative stores are deprecated in ARMv7 and lead to undefined behaviour
+ * in Thumb-2: use a r7 as a base instead.
+ * Be careful not to clobber r7 when maintaing this file.
+ */
+ THUMB( adr r7, omap3_sram_configure_core_dpll )
+ .macro strtext Rt:req, label:req
+ ARM( str \Rt, \label )
+ THUMB( str \Rt, [r7, \label - omap3_sram_configure_core_dpll] )
+ .endm
+
ldr r4, [sp, #52]
- str r4, omap_sdrc_rfr_ctrl_0_val
+ strtext r4, omap_sdrc_rfr_ctrl_0_val
ldr r4, [sp, #56]
- str r4, omap_sdrc_actim_ctrl_a_0_val
+ strtext r4, omap_sdrc_actim_ctrl_a_0_val
ldr r4, [sp, #60]
- str r4, omap_sdrc_actim_ctrl_b_0_val
+ strtext r4, omap_sdrc_actim_ctrl_b_0_val
ldr r4, [sp, #64]
- str r4, omap_sdrc_mr_0_val
+ strtext r4, omap_sdrc_mr_0_val
ldr r4, [sp, #68]
- str r4, omap_sdrc_rfr_ctrl_1_val
+ strtext r4, omap_sdrc_rfr_ctrl_1_val
cmp r4, #0 @ if SDRC_RFR_CTRL_1 is 0,
beq skip_cs1_params @ do not use cs1 params
ldr r4, [sp, #72]
- str r4, omap_sdrc_actim_ctrl_a_1_val
+ strtext r4, omap_sdrc_actim_ctrl_a_1_val
ldr r4, [sp, #76]
- str r4, omap_sdrc_actim_ctrl_b_1_val
+ strtext r4, omap_sdrc_actim_ctrl_b_1_val
ldr r4, [sp, #80]
- str r4, omap_sdrc_mr_1_val
+ strtext r4, omap_sdrc_mr_1_val
skip_cs1_params:
mrc p15, 0, r8, c1, c0, 0 @ read ctrl register
bic r10, r8, #0x800 @ clear Z-bit, disable branch prediction
@@ -271,6 +289,7 @@ skip_cs1_prog:
ldr r12, [r11] @ posted-write barrier for SDRC
bx lr
+ .align
omap3_sdrc_power:
.word OMAP34XX_SDRC_REGADDR(SDRC_POWER)
omap3_cm_clksel1_pll:
@@ -319,6 +338,7 @@ omap3_sdrc_dlla_ctrl:
.word OMAP34XX_SDRC_REGADDR(SDRC_DLLA_CTRL)
core_m2_mask_val:
.word 0x07FFFFFF
+ENDPROC(omap3_sram_configure_core_dpll)
ENTRY(omap3_sram_configure_core_dpll_sz)
.word . - omap3_sram_configure_core_dpll
generated by cgit v0.10.2 at 2024-11-13 11:14:01 (GMT)