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authorTony Lindgren2010-12-21 16:53:00 -0800
committerTony Lindgren2010-12-21 16:53:00 -0800
commitbb3613aa34a81a5e2f1227ccdb801fde04a7da10 (patch)
treebb79c15d5da41113bd7b83d9e74fbfc4a1bf8569 /arch/arm
parent6971071cdda79cad5f53ba390e466d696e7e9006 (diff)
parentbb1c9034b3ce7f29d3d178a87b42b767611d6574 (diff)
Merge branch 'pm-next' of ssh://master.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into omap-for-linus
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-at91/Makefile2
-rw-r--r--arch/arm/mach-at91/board-pcontrol-g20.c98
-rw-r--r--arch/arm/mach-at91/board-stamp9g20.c82
-rw-r--r--arch/arm/mach-at91/clock.c2
-rw-r--r--arch/arm/mach-at91/include/mach/stamp9g20.h7
-rw-r--r--arch/arm/mach-omap2/control.c22
-rw-r--r--arch/arm/mach-omap2/control.h9
-rw-r--r--arch/arm/mach-omap2/cpuidle34xx.c36
-rw-r--r--arch/arm/mach-omap2/pm.c2
-rw-r--r--arch/arm/mach-omap2/pm.h15
-rw-r--r--arch/arm/mach-omap2/pm24xx.c16
-rw-r--r--arch/arm/mach-omap2/pm34xx.c66
-rw-r--r--arch/arm/mach-omap2/pm44xx.c16
-rw-r--r--arch/arm/mach-omap2/sdrc.h1
-rw-r--r--arch/arm/mach-omap2/sleep34xx.S832
-rw-r--r--arch/arm/mach-s3c2412/Kconfig7
-rw-r--r--arch/arm/mach-s3c2412/Makefile3
-rw-r--r--arch/arm/mach-s3c2416/Kconfig1
-rw-r--r--arch/arm/mach-s5pv210/mach-aquila.c6
-rw-r--r--arch/arm/mach-s5pv210/mach-goni.c6
-rw-r--r--arch/arm/mach-shmobile/include/mach/entry-macro.S30
-rw-r--r--arch/arm/mach-shmobile/include/mach/vmalloc.h2
-rw-r--r--arch/arm/plat-omap/include/plat/sram.h11
-rw-r--r--arch/arm/plat-omap/sram.c7
-rw-r--r--arch/arm/plat-s3c24xx/Kconfig2
25 files changed, 702 insertions, 579 deletions
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index 62d686f0b426..d13add71f72a 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -65,7 +65,7 @@ obj-$(CONFIG_MACH_AT91SAM9G20EK) += board-sam9g20ek.o
obj-$(CONFIG_MACH_CPU9G20) += board-cpu9krea.o
obj-$(CONFIG_MACH_STAMP9G20) += board-stamp9g20.o
obj-$(CONFIG_MACH_PORTUXG20) += board-stamp9g20.o
-obj-$(CONFIG_MACH_PCONTROL_G20) += board-pcontrol-g20.o
+obj-$(CONFIG_MACH_PCONTROL_G20) += board-pcontrol-g20.o board-stamp9g20.o
# AT91SAM9260/AT91SAM9G20 board-specific support
obj-$(CONFIG_MACH_SNAPPER_9260) += board-snapper9260.o
diff --git a/arch/arm/mach-at91/board-pcontrol-g20.c b/arch/arm/mach-at91/board-pcontrol-g20.c
index bba5a560e02b..feb65787c30b 100644
--- a/arch/arm/mach-at91/board-pcontrol-g20.c
+++ b/arch/arm/mach-at91/board-pcontrol-g20.c
@@ -31,6 +31,7 @@
#include <mach/board.h>
#include <mach/at91sam9_smc.h>
+#include <mach/stamp9g20.h>
#include "sam9_smc.h"
#include "generic.h"
@@ -38,11 +39,7 @@
static void __init pcontrol_g20_map_io(void)
{
- /* Initialize processor: 18.432 MHz crystal */
- at91sam9260_initialize(18432000);
-
- /* DGBU on ttyS0. (Rx, Tx) only TTL -> JTAG connector X7 17,19 ) */
- at91_register_uart(0, 0, 0);
+ stamp9g20_map_io();
/* USART0 on ttyS1. (Rx, Tx, CTS, RTS) piggyback A2 */
at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS
@@ -54,9 +51,6 @@ static void __init pcontrol_g20_map_io(void)
/* USART2 on ttyS3. (Rx, Tx) 9bit-Bus Multidrop-mode X4 */
at91_register_uart(AT91SAM9260_ID_US4, 3, 0);
-
- /* set serial console to ttyS0 (ie, DBGU) */
- at91_set_serial_console(0);
}
@@ -66,38 +60,6 @@ static void __init init_irq(void)
}
-/*
- * NAND flash 512MiB 1,8V 8-bit, sector size 128 KiB
- */
-static struct atmel_nand_data __initdata nand_data = {
- .ale = 21,
- .cle = 22,
- .rdy_pin = AT91_PIN_PC13,
- .enable_pin = AT91_PIN_PC14,
-};
-
-/*
- * Bus timings; unit = 7.57ns
- */
-static struct sam9_smc_config __initdata nand_smc_config = {
- .ncs_read_setup = 0,
- .nrd_setup = 2,
- .ncs_write_setup = 0,
- .nwe_setup = 2,
-
- .ncs_read_pulse = 4,
- .nrd_pulse = 4,
- .ncs_write_pulse = 4,
- .nwe_pulse = 4,
-
- .read_cycle = 7,
- .write_cycle = 7,
-
- .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
- | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
- .tdf_cycles = 3,
-};
-
static struct sam9_smc_config __initdata pcontrol_smc_config[2] = { {
.ncs_read_setup = 16,
.nrd_setup = 18,
@@ -138,14 +100,6 @@ static struct sam9_smc_config __initdata pcontrol_smc_config[2] = { {
.tdf_cycles = 1,
} };
-static void __init add_device_nand(void)
-{
- /* configure chip-select 3 (NAND) */
- sam9_smc_configure(3, &nand_smc_config);
- at91_add_device_nand(&nand_data);
-}
-
-
static void __init add_device_pcontrol(void)
{
/* configure chip-select 4 (IO compatible to 8051 X4 ) */
@@ -156,23 +110,6 @@ static void __init add_device_pcontrol(void)
/*
- * MCI (SD/MMC)
- * det_pin, wp_pin and vcc_pin are not connected
- */
-#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
-static struct mci_platform_data __initdata mmc_data = {
- .slot[0] = {
- .bus_width = 4,
- },
-};
-#else
-static struct at91_mmc_data __initdata mmc_data = {
- .wire4 = 1,
-};
-#endif
-
-
-/*
* USB Host port
*/
static struct at91_usbh_data __initdata usbh_data = {
@@ -265,42 +202,13 @@ static struct spi_board_info pcontrol_g20_spi_devices[] = {
};
-/*
- * Dallas 1-Wire DS2431
- */
-static struct w1_gpio_platform_data w1_gpio_pdata = {
- .pin = AT91_PIN_PA29,
- .is_open_drain = 1,
-};
-
-static struct platform_device w1_device = {
- .name = "w1-gpio",
- .id = -1,
- .dev.platform_data = &w1_gpio_pdata,
-};
-
-static void add_wire1(void)
-{
- at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
- at91_set_multi_drive(w1_gpio_pdata.pin, 1);
- platform_device_register(&w1_device);
-}
-
-
static void __init pcontrol_g20_board_init(void)
{
- at91_add_device_serial();
- add_device_nand();
-#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
- at91_add_device_mci(0, &mmc_data);
-#else
- at91_add_device_mmc(0, &mmc_data);
-#endif
+ stamp9g20_board_init();
at91_add_device_usbh(&usbh_data);
at91_add_device_eth(&macb_data);
at91_add_device_i2c(pcontrol_g20_i2c_devices,
ARRAY_SIZE(pcontrol_g20_i2c_devices));
- add_wire1();
add_device_pcontrol();
at91_add_device_spi(pcontrol_g20_spi_devices,
ARRAY_SIZE(pcontrol_g20_spi_devices));
diff --git a/arch/arm/mach-at91/board-stamp9g20.c b/arch/arm/mach-at91/board-stamp9g20.c
index 5206eef4a67e..f8902b118960 100644
--- a/arch/arm/mach-at91/board-stamp9g20.c
+++ b/arch/arm/mach-at91/board-stamp9g20.c
@@ -32,7 +32,7 @@
#include "generic.h"
-static void __init portuxg20_map_io(void)
+void __init stamp9g20_map_io(void)
{
/* Initialize processor: 18.432 MHz crystal */
at91sam9260_initialize(18432000);
@@ -40,6 +40,24 @@ static void __init portuxg20_map_io(void)
/* DGBU on ttyS0. (Rx & Tx only) */
at91_register_uart(0, 0, 0);
+ /* set serial console to ttyS0 (ie, DBGU) */
+ at91_set_serial_console(0);
+}
+
+static void __init stamp9g20evb_map_io(void)
+{
+ stamp9g20_map_io();
+
+ /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
+ at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
+ | ATMEL_UART_DTR | ATMEL_UART_DSR
+ | ATMEL_UART_DCD | ATMEL_UART_RI);
+}
+
+static void __init portuxg20_map_io(void)
+{
+ stamp9g20_map_io();
+
/* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
| ATMEL_UART_DTR | ATMEL_UART_DSR
@@ -56,26 +74,6 @@ static void __init portuxg20_map_io(void)
/* USART5 on ttyS6. (Rx, Tx only) */
at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
-
- /* set serial console to ttyS0 (ie, DBGU) */
- at91_set_serial_console(0);
-}
-
-static void __init stamp9g20_map_io(void)
-{
- /* Initialize processor: 18.432 MHz crystal */
- at91sam9260_initialize(18432000);
-
- /* DGBU on ttyS0. (Rx & Tx only) */
- at91_register_uart(0, 0, 0);
-
- /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
- at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
- | ATMEL_UART_DTR | ATMEL_UART_DSR
- | ATMEL_UART_DCD | ATMEL_UART_RI);
-
- /* set serial console to ttyS0 (ie, DBGU) */
- at91_set_serial_console(0);
}
static void __init init_irq(void)
@@ -156,7 +154,7 @@ static struct at91_udc_data __initdata portuxg20_udc_data = {
.pullup_pin = 0, /* pull-up driven by UDC */
};
-static struct at91_udc_data __initdata stamp9g20_udc_data = {
+static struct at91_udc_data __initdata stamp9g20evb_udc_data = {
.vbus_pin = AT91_PIN_PA22,
.pullup_pin = 0, /* pull-up driven by UDC */
};
@@ -190,7 +188,7 @@ static struct gpio_led portuxg20_leds[] = {
}
};
-static struct gpio_led stamp9g20_leds[] = {
+static struct gpio_led stamp9g20evb_leds[] = {
{
.name = "D8",
.gpio = AT91_PIN_PB18,
@@ -250,7 +248,7 @@ void add_w1(void)
}
-static void __init generic_board_init(void)
+void __init stamp9g20_board_init(void)
{
/* Serial */
at91_add_device_serial();
@@ -262,34 +260,40 @@ static void __init generic_board_init(void)
#else
at91_add_device_mmc(0, &mmc_data);
#endif
- /* USB Host */
- at91_add_device_usbh(&usbh_data);
- /* Ethernet */
- at91_add_device_eth(&macb_data);
- /* I2C */
- at91_add_device_i2c(NULL, 0);
/* W1 */
add_w1();
}
static void __init portuxg20_board_init(void)
{
- generic_board_init();
- /* SPI */
- at91_add_device_spi(portuxg20_spi_devices, ARRAY_SIZE(portuxg20_spi_devices));
+ stamp9g20_board_init();
+ /* USB Host */
+ at91_add_device_usbh(&usbh_data);
/* USB Device */
at91_add_device_udc(&portuxg20_udc_data);
+ /* Ethernet */
+ at91_add_device_eth(&macb_data);
+ /* I2C */
+ at91_add_device_i2c(NULL, 0);
+ /* SPI */
+ at91_add_device_spi(portuxg20_spi_devices, ARRAY_SIZE(portuxg20_spi_devices));
/* LEDs */
at91_gpio_leds(portuxg20_leds, ARRAY_SIZE(portuxg20_leds));
}
-static void __init stamp9g20_board_init(void)
+static void __init stamp9g20evb_board_init(void)
{
- generic_board_init();
+ stamp9g20_board_init();
+ /* USB Host */
+ at91_add_device_usbh(&usbh_data);
/* USB Device */
- at91_add_device_udc(&stamp9g20_udc_data);
+ at91_add_device_udc(&stamp9g20evb_udc_data);
+ /* Ethernet */
+ at91_add_device_eth(&macb_data);
+ /* I2C */
+ at91_add_device_i2c(NULL, 0);
/* LEDs */
- at91_gpio_leds(stamp9g20_leds, ARRAY_SIZE(stamp9g20_leds));
+ at91_gpio_leds(stamp9g20evb_leds, ARRAY_SIZE(stamp9g20evb_leds));
}
MACHINE_START(PORTUXG20, "taskit PortuxG20")
@@ -305,7 +309,7 @@ MACHINE_START(STAMP9G20, "taskit Stamp9G20")
/* Maintainer: taskit GmbH */
.boot_params = AT91_SDRAM_BASE + 0x100,
.timer = &at91sam926x_timer,
- .map_io = stamp9g20_map_io,
+ .map_io = stamp9g20evb_map_io,
.init_irq = init_irq,
- .init_machine = stamp9g20_board_init,
+ .init_machine = stamp9g20evb_board_init,
MACHINE_END
diff --git a/arch/arm/mach-at91/clock.c b/arch/arm/mach-at91/clock.c
index 7525cee3983f..9113da6845f1 100644
--- a/arch/arm/mach-at91/clock.c
+++ b/arch/arm/mach-at91/clock.c
@@ -658,7 +658,7 @@ static void __init at91_upll_usbfs_clock_init(unsigned long main_clock)
/* Now set uhpck values */
uhpck.parent = &utmi_clk;
uhpck.pmc_mask = AT91SAM926x_PMC_UHP;
- uhpck.rate_hz = utmi_clk.parent->rate_hz;
+ uhpck.rate_hz = utmi_clk.rate_hz;
uhpck.rate_hz /= 1 + ((at91_sys_read(AT91_PMC_USB) & AT91_PMC_OHCIUSBDIV) >> 8);
}
diff --git a/arch/arm/mach-at91/include/mach/stamp9g20.h b/arch/arm/mach-at91/include/mach/stamp9g20.h
new file mode 100644
index 000000000000..6120f9c46d59
--- /dev/null
+++ b/arch/arm/mach-at91/include/mach/stamp9g20.h
@@ -0,0 +1,7 @@
+#ifndef __MACH_STAMP9G20_H
+#define __MACH_STAMP9G20_H
+
+void stamp9g20_map_io(void);
+void stamp9g20_board_init(void);
+
+#endif
diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index 1fa3294b6048..0269bb055b69 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -239,9 +239,19 @@ void omap3_save_scratchpad_contents(void)
struct omap3_scratchpad_prcm_block prcm_block_contents;
struct omap3_scratchpad_sdrc_block sdrc_block_contents;
- /* Populate the Scratchpad contents */
+ /*
+ * Populate the Scratchpad contents
+ *
+ * The "get_*restore_pointer" functions are used to provide a
+ * physical restore address where the ROM code jumps while waking
+ * up from MPU OFF/OSWR state.
+ * The restore pointer is stored into the scratchpad.
+ */
scratchpad_contents.boot_config_ptr = 0x0;
- if (omap_rev() != OMAP3430_REV_ES3_0 &&
+ if (cpu_is_omap3630())
+ scratchpad_contents.public_restore_ptr =
+ virt_to_phys(get_omap3630_restore_pointer());
+ else if (omap_rev() != OMAP3430_REV_ES3_0 &&
omap_rev() != OMAP3430_REV_ES3_1)
scratchpad_contents.public_restore_ptr =
virt_to_phys(get_restore_pointer());
@@ -474,4 +484,12 @@ void omap3_control_restore_context(void)
omap_ctrl_writel(control_context.csi, OMAP343X_CONTROL_CSI);
return;
}
+
+void omap3630_ctrl_disable_rta(void)
+{
+ if (!cpu_is_omap3630())
+ return;
+ omap_ctrl_writel(OMAP36XX_RTA_DISABLE, OMAP36XX_CONTROL_MEM_RTA_CTRL);
+}
+
#endif /* CONFIG_ARCH_OMAP3 && CONFIG_PM */
diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h
index b6c6b7c450b3..6e5f7e512ff7 100644
--- a/arch/arm/mach-omap2/control.h
+++ b/arch/arm/mach-omap2/control.h
@@ -204,6 +204,10 @@
#define OMAP343X_CONTROL_WKUP_DEBOBS3 (OMAP343X_CONTROL_GENERAL_WKUP + 0x014)
#define OMAP343X_CONTROL_WKUP_DEBOBS4 (OMAP343X_CONTROL_GENERAL_WKUP + 0x018)
+/* 36xx-only RTA - Retention till Accesss control registers and bits */
+#define OMAP36XX_CONTROL_MEM_RTA_CTRL 0x40C
+#define OMAP36XX_RTA_DISABLE 0x0
+
/* 34xx D2D idle-related pins, handled by PM core */
#define OMAP3_PADCONF_SAD2D_MSTANDBY 0x250
#define OMAP3_PADCONF_SAD2D_IDLEACK 0x254
@@ -270,6 +274,8 @@
#define OMAP343X_SCRATCHPAD_ROM (OMAP343X_CTRL_BASE + 0x860)
#define OMAP343X_SCRATCHPAD (OMAP343X_CTRL_BASE + 0x910)
#define OMAP343X_SCRATCHPAD_ROM_OFFSET 0x19C
+#define OMAP343X_SCRATCHPAD_REGADDR(reg) OMAP2_L4_IO_ADDRESS(\
+ OMAP343X_SCRATCHPAD + reg)
/* AM35XX_CONTROL_IPSS_CLK_CTRL bits */
#define AM35XX_USBOTG_VBUSP_CLK_SHIFT 0
@@ -347,10 +353,11 @@ extern void omap3_save_scratchpad_contents(void);
extern void omap3_clear_scratchpad_contents(void);
extern u32 *get_restore_pointer(void);
extern u32 *get_es3_restore_pointer(void);
+extern u32 *get_omap3630_restore_pointer(void);
extern u32 omap3_arm_context[128];
extern void omap3_control_save_context(void);
extern void omap3_control_restore_context(void);
-
+extern void omap3630_ctrl_disable_rta(void);
#else
#define omap_ctrl_base_get() 0
#define omap_ctrl_readb(x) 0
diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c
index 0d50b45d041c..0fb619c52588 100644
--- a/arch/arm/mach-omap2/cpuidle34xx.c
+++ b/arch/arm/mach-omap2/cpuidle34xx.c
@@ -293,25 +293,26 @@ select_state:
DEFINE_PER_CPU(struct cpuidle_device, omap3_idle_dev);
/**
- * omap3_cpuidle_update_states - Update the cpuidle states.
+ * omap3_cpuidle_update_states() - Update the cpuidle states
+ * @mpu_deepest_state: Enable states upto and including this for mpu domain
+ * @core_deepest_state: Enable states upto and including this for core domain
*
- * Currently, this function toggles the validity of idle states based upon
- * the flag 'enable_off_mode'. When the flag is set all states are valid.
- * Else, states leading to OFF state set to be invalid.
+ * This goes through the list of states available and enables and disables the
+ * validity of C states based on deepest state that can be achieved for the
+ * variable domain
*/
-void omap3_cpuidle_update_states(void)
+void omap3_cpuidle_update_states(u32 mpu_deepest_state, u32 core_deepest_state)
{
int i;
for (i = OMAP3_STATE_C1; i < OMAP3_MAX_STATES; i++) {
struct omap3_processor_cx *cx = &omap3_power_states[i];
- if (enable_off_mode) {
+ if ((cx->mpu_state >= mpu_deepest_state) &&
+ (cx->core_state >= core_deepest_state)) {
cx->valid = 1;
} else {
- if ((cx->mpu_state == PWRDM_POWER_OFF) ||
- (cx->core_state == PWRDM_POWER_OFF))
- cx->valid = 0;
+ cx->valid = 0;
}
}
}
@@ -452,6 +453,18 @@ 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;
+
+ /*
+ * Erratum i583: implementation for ES rev < Es1.2 on 3630. We cannot
+ * enable OFF mode in a stable form for previous revisions.
+ * we disable C7 state as a result.
+ */
+ 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",
+ __func__);
+ }
}
struct cpuidle_driver omap3_idle_driver = {
@@ -504,7 +517,10 @@ int __init omap3_idle_init(void)
return -EINVAL;
dev->state_count = count;
- omap3_cpuidle_update_states();
+ if (enable_off_mode)
+ omap3_cpuidle_update_states(PWRDM_POWER_OFF, PWRDM_POWER_OFF);
+ else
+ omap3_cpuidle_update_states(PWRDM_POWER_RET, PWRDM_POWER_RET);
if (cpuidle_register_device(dev)) {
printk(KERN_ERR "%s: CPUidle register device failed\n",
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index 59ca03b0e691..6ec2ee12272a 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -143,5 +143,5 @@ static int __init omap2_common_pm_init(void)
return 0;
}
-device_initcall(omap2_common_pm_init);
+postcore_initcall(omap2_common_pm_init);
diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
index 0d75bfd1fdbe..c04f7b50e26f 100644
--- a/arch/arm/mach-omap2/pm.h
+++ b/arch/arm/mach-omap2/pm.h
@@ -58,7 +58,7 @@ extern u32 sleep_while_idle;
#endif
#if defined(CONFIG_CPU_IDLE)
-extern void omap3_cpuidle_update_states(void);
+extern void omap3_cpuidle_update_states(u32, u32);
#endif
#if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS)
@@ -80,9 +80,20 @@ extern void save_secure_ram_context(u32 *addr);
extern void omap3_save_scratchpad_contents(void);
extern unsigned int omap24xx_idle_loop_suspend_sz;
-extern unsigned int omap34xx_suspend_sz;
extern unsigned int save_secure_ram_context_sz;
extern unsigned int omap24xx_cpu_suspend_sz;
extern unsigned int omap34xx_cpu_suspend_sz;
+#define PM_RTA_ERRATUM_i608 (1 << 0)
+#define PM_SDRC_WAKEUP_ERRATUM_i583 (1 << 1)
+
+#if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
+extern u16 pm34xx_errata;
+#define IS_PM34XX_ERRATUM(id) (pm34xx_errata & (id))
+extern void enable_omap3630_toggle_l2_on_restore(void);
+#else
+#define IS_PM34XX_ERRATUM(id) 0
+static inline void enable_omap3630_toggle_l2_on_restore(void) { }
+#endif /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */
+
#endif
diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c
index aaeea49b9bdd..aea7ced9a2ff 100644
--- a/arch/arm/mach-omap2/pm24xx.c
+++ b/arch/arm/mach-omap2/pm24xx.c
@@ -301,14 +301,8 @@ out:
static int omap2_pm_begin(suspend_state_t state)
{
- suspend_state = state;
- return 0;
-}
-
-static int omap2_pm_prepare(void)
-{
- /* We cannot sleep in idle until we have resumed */
disable_hlt();
+ suspend_state = state;
return 0;
}
@@ -349,21 +343,15 @@ static int omap2_pm_enter(suspend_state_t state)
return ret;
}
-static void omap2_pm_finish(void)
-{
- enable_hlt();
-}
-
static void omap2_pm_end(void)
{
suspend_state = PM_SUSPEND_ON;
+ enable_hlt();
}
static struct platform_suspend_ops omap_pm_ops = {
.begin = omap2_pm_begin,
- .prepare = omap2_pm_prepare,
.enter = omap2_pm_enter,
- .finish = omap2_pm_finish,
.end = omap2_pm_end,
.valid = suspend_valid_only_mem,
};
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 648b8c50d024..c45b4fa1deeb 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -68,6 +68,9 @@ static inline bool is_suspending(void)
#define OMAP343X_TABLE_VALUE_OFFSET 0xc0
#define OMAP343X_CONTROL_REG_VALUE_OFFSET 0xc8
+/* pm34xx errata defined in pm.h */
+u16 pm34xx_errata;
+
struct power_state {
struct powerdomain *pwrdm;
u32 next_state;
@@ -143,7 +146,7 @@ static void omap3_core_save_context(void)
/*
* Force write last pad into memory, as this can fail in some
- * cases according to erratas 1.157, 1.185
+ * cases according to errata 1.157, 1.185
*/
omap_ctrl_writel(omap_ctrl_readl(OMAP343X_PADCONF_ETK_D14),
OMAP343X_CONTROL_MEM_WKUP + 0x2a0);
@@ -430,7 +433,7 @@ void omap_sram_idle(void)
/*
* On EMU/HS devices ROM code restores a SRDC value
* from scratchpad which has automatic self refresh on timeout
- * of AUTO_CNT = 1 enabled. This takes care of errata 1.142.
+ * of AUTO_CNT = 1 enabled. This takes care of erratum ID i443.
* Hence store/restore the SDRC_POWER register here.
*/
if (omap_rev() >= OMAP3430_REV_ES3_0 &&
@@ -529,12 +532,6 @@ out:
}
#ifdef CONFIG_SUSPEND
-static int omap3_pm_prepare(void)
-{
- disable_hlt();
- return 0;
-}
-
static int omap3_pm_suspend(void)
{
struct power_state *pwrst;
@@ -597,14 +594,10 @@ static int omap3_pm_enter(suspend_state_t unused)
return ret;
}
-static void omap3_pm_finish(void)
-{
- enable_hlt();
-}
-
/* Hooks to enable / disable UART interrupts during suspend */
static int omap3_pm_begin(suspend_state_t state)
{
+ disable_hlt();
suspend_state = state;
omap_uart_enable_irqs(0);
return 0;
@@ -614,15 +607,14 @@ static void omap3_pm_end(void)
{
suspend_state = PM_SUSPEND_ON;
omap_uart_enable_irqs(1);
+ enable_hlt();
return;
}
static struct platform_suspend_ops omap_pm_ops = {
.begin = omap3_pm_begin,
.end = omap3_pm_end,
- .prepare = omap3_pm_prepare,
.enter = omap3_pm_enter,
- .finish = omap3_pm_finish,
.valid = suspend_valid_only_mem,
};
#endif /* CONFIG_SUSPEND */
@@ -925,12 +917,29 @@ void omap3_pm_off_mode_enable(int enable)
state = PWRDM_POWER_RET;
#ifdef CONFIG_CPU_IDLE
- omap3_cpuidle_update_states();
+ /*
+ * Erratum i583: implementation for ES rev < Es1.2 on 3630. We cannot
+ * enable OFF mode in a stable form for previous revisions, restrict
+ * instead to RET
+ */
+ if (IS_PM34XX_ERRATUM(PM_SDRC_WAKEUP_ERRATUM_i583))
+ omap3_cpuidle_update_states(state, PWRDM_POWER_RET);
+ else
+ omap3_cpuidle_update_states(state, state);
#endif
list_for_each_entry(pwrst, &pwrst_list, node) {
- pwrst->next_state = state;
- omap_set_pwrdm_state(pwrst->pwrdm, state);
+ if (IS_PM34XX_ERRATUM(PM_SDRC_WAKEUP_ERRATUM_i583) &&
+ 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",
+ __func__);
+ } else {
+ pwrst->next_state = state;
+ }
+ omap_set_pwrdm_state(pwrst->pwrdm, pwrst->next_state);
}
}
@@ -1002,6 +1011,17 @@ void omap_push_sram_idle(void)
save_secure_ram_context_sz);
}
+static void __init pm_errata_configure(void)
+{
+ if (cpu_is_omap3630()) {
+ pm34xx_errata |= PM_RTA_ERRATUM_i608;
+ /* Enable the l2 cache toggling in sleep logic */
+ enable_omap3630_toggle_l2_on_restore();
+ if (omap_rev() < OMAP3630_REV_ES1_2)
+ pm34xx_errata |= PM_SDRC_WAKEUP_ERRATUM_i583;
+ }
+}
+
static int __init omap3_pm_init(void)
{
struct power_state *pwrst, *tmp;
@@ -1011,6 +1031,8 @@ static int __init omap3_pm_init(void)
if (!cpu_is_omap34xx())
return -ENODEV;
+ pm_errata_configure();
+
printk(KERN_ERR "Power Management for TI OMAP3.\n");
/* XXX prcm_setup_regs needs to be before enabling hw
@@ -1058,6 +1080,14 @@ static int __init omap3_pm_init(void)
pm_idle = omap3_pm_idle;
omap3_idle_init();
+ /*
+ * RTA is disabled during initialization as per erratum i608
+ * it is safer to disable RTA by the bootloader, but we would like
+ * to be doubly sure here and prevent any mishaps.
+ */
+ if (IS_PM34XX_ERRATUM(PM_RTA_ERRATUM_i608))
+ omap3630_ctrl_disable_rta();
+
clkdm_add_wkdep(neon_clkdm, mpu_clkdm);
if (omap_type() != OMAP2_DEVICE_TYPE_GP) {
omap3_secure_ram_storage =
diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c
index 54544b4fc76b..6aff9961e35d 100644
--- a/arch/arm/mach-omap2/pm44xx.c
+++ b/arch/arm/mach-omap2/pm44xx.c
@@ -31,12 +31,6 @@ struct power_state {
static LIST_HEAD(pwrst_list);
#ifdef CONFIG_SUSPEND
-static int omap4_pm_prepare(void)
-{
- disable_hlt();
- return 0;
-}
-
static int omap4_pm_suspend(void)
{
do_wfi();
@@ -59,28 +53,22 @@ static int omap4_pm_enter(suspend_state_t suspend_state)
return ret;
}
-static void omap4_pm_finish(void)
-{
- enable_hlt();
- return;
-}
-
static int omap4_pm_begin(suspend_state_t state)
{
+ disable_hlt();
return 0;
}
static void omap4_pm_end(void)
{
+ enable_hlt();
return;
}
static struct platform_suspend_ops omap_pm_ops = {
.begin = omap4_pm_begin,
.end = omap4_pm_end,
- .prepare = omap4_pm_prepare,
.enter = omap4_pm_enter,
- .finish = omap4_pm_finish,
.valid = suspend_valid_only_mem,
};
#endif /* CONFIG_SUSPEND */
diff --git a/arch/arm/mach-omap2/sdrc.h b/arch/arm/mach-omap2/sdrc.h
index 68f57bb67fc5..b3f83799e6cf 100644
--- a/arch/arm/mach-omap2/sdrc.h
+++ b/arch/arm/mach-omap2/sdrc.h
@@ -74,5 +74,4 @@ static inline u32 sms_read_reg(u16 reg)
*/
#define SDRC_MPURATE_LOOPS 96
-
#endif
diff --git a/arch/arm/mach-omap2/sleep34xx.S b/arch/arm/mach-omap2/sleep34xx.S
index 2fb205a7f285..e3b5cd76c54c 100644
--- a/arch/arm/mach-omap2/sleep34xx.S
+++ b/arch/arm/mach-omap2/sleep34xx.S
@@ -1,6 +1,4 @@
/*
- * linux/arch/arm/mach-omap2/sleep.S
- *
* (C) Copyright 2007
* Texas Instruments
* Karthik Dasu <karthik-dp@ti.com>
@@ -26,6 +24,7 @@
*/
#include <linux/linkage.h>
#include <asm/assembler.h>
+#include <plat/sram.h>
#include <mach/io.h>
#include "cm.h"
@@ -33,21 +32,27 @@
#include "sdrc.h"
#include "control.h"
-#define SDRC_SCRATCHPAD_SEM_V 0xfa00291c
-
-#define PM_PREPWSTST_CORE_V OMAP34XX_PRM_REGADDR(CORE_MOD, \
- OMAP3430_PM_PREPWSTST)
-#define PM_PREPWSTST_CORE_P 0x48306AE8
-#define PM_PREPWSTST_MPU_V OMAP34XX_PRM_REGADDR(MPU_MOD, \
- OMAP3430_PM_PREPWSTST)
+/*
+ * Registers access definitions
+ */
+#define SDRC_SCRATCHPAD_SEM_OFFS 0xc
+#define SDRC_SCRATCHPAD_SEM_V OMAP343X_SCRATCHPAD_REGADDR\
+ (SDRC_SCRATCHPAD_SEM_OFFS)
+#define PM_PREPWSTST_CORE_P OMAP3430_PRM_BASE + CORE_MOD +\
+ OMAP3430_PM_PREPWSTST
#define PM_PWSTCTRL_MPU_P OMAP3430_PRM_BASE + MPU_MOD + OMAP2_PM_PWSTCTRL
#define CM_IDLEST1_CORE_V OMAP34XX_CM_REGADDR(CORE_MOD, CM_IDLEST1)
-#define SRAM_BASE_P 0x40200000
-#define CONTROL_STAT 0x480022F0
-#define SCRATCHPAD_MEM_OFFS 0x310 /* Move this as correct place is
- * available */
-#define SCRATCHPAD_BASE_P (OMAP343X_CTRL_BASE + OMAP343X_CONTROL_MEM_WKUP\
- + SCRATCHPAD_MEM_OFFS)
+#define CM_IDLEST_CKGEN_V OMAP34XX_CM_REGADDR(PLL_MOD, CM_IDLEST)
+#define SRAM_BASE_P OMAP3_SRAM_PA
+#define CONTROL_STAT OMAP343X_CTRL_BASE + OMAP343X_CONTROL_STATUS
+#define CONTROL_MEM_RTA_CTRL (OMAP343X_CTRL_BASE +\
+ OMAP36XX_CONTROL_MEM_RTA_CTRL)
+
+/* Move this as correct place is available */
+#define SCRATCHPAD_MEM_OFFS 0x310
+#define SCRATCHPAD_BASE_P (OMAP343X_CTRL_BASE +\
+ OMAP343X_CONTROL_MEM_WKUP +\
+ SCRATCHPAD_MEM_OFFS)
#define SDRC_POWER_V OMAP34XX_SDRC_REGADDR(SDRC_POWER)
#define SDRC_SYSCONFIG_P (OMAP343X_SDRC_BASE + SDRC_SYSCONFIG)
#define SDRC_MR_0_P (OMAP343X_SDRC_BASE + SDRC_MR_0)
@@ -59,48 +64,38 @@
#define SDRC_DLLA_STATUS_V OMAP34XX_SDRC_REGADDR(SDRC_DLLA_STATUS)
#define SDRC_DLLA_CTRL_V OMAP34XX_SDRC_REGADDR(SDRC_DLLA_CTRL)
- .text
-/* Function to acquire the semaphore in scratchpad */
-ENTRY(lock_scratchpad_sem)
- stmfd sp!, {lr} @ save registers on stack
-wait_sem:
- mov r0,#1
- ldr r1, sdrc_scratchpad_sem
-wait_loop:
- ldr r2, [r1] @ load the lock value
- cmp r2, r0 @ is the lock free ?
- beq wait_loop @ not free...
- swp r2, r0, [r1] @ semaphore free so lock it and proceed
- cmp r2, r0 @ did we succeed ?
- beq wait_sem @ no - try again
- ldmfd sp!, {pc} @ restore regs and return
-sdrc_scratchpad_sem:
- .word SDRC_SCRATCHPAD_SEM_V
-ENTRY(lock_scratchpad_sem_sz)
- .word . - lock_scratchpad_sem
-
- .text
-/* Function to release the scratchpad semaphore */
-ENTRY(unlock_scratchpad_sem)
- stmfd sp!, {lr} @ save registers on stack
- ldr r3, sdrc_scratchpad_sem
- mov r2,#0
- str r2,[r3]
- ldmfd sp!, {pc} @ restore regs and return
-ENTRY(unlock_scratchpad_sem_sz)
- .word . - unlock_scratchpad_sem
+
+/*
+ * API functions
+ */
+
+/*
+ * The "get_*restore_pointer" functions are used to provide a
+ * physical restore address where the ROM code jumps while waking
+ * up from MPU OFF/OSWR state.
+ * The restore pointer is stored into the scratchpad.
+ */
.text
/* Function call to get the restore pointer for resume from OFF */
ENTRY(get_restore_pointer)
- stmfd sp!, {lr} @ save registers on stack
+ stmfd sp!, {lr} @ save registers on stack
adr r0, restore
- ldmfd sp!, {pc} @ restore regs and return
+ ldmfd sp!, {pc} @ restore regs and return
ENTRY(get_restore_pointer_sz)
- .word . - get_restore_pointer
+ .word . - get_restore_pointer
.text
-/* Function call to get the restore pointer for for ES3 to resume from OFF */
+/* Function call to get the restore pointer for 3630 resume from OFF */
+ENTRY(get_omap3630_restore_pointer)
+ stmfd sp!, {lr} @ save registers on stack
+ adr r0, restore_3630
+ ldmfd sp!, {pc} @ restore regs and return
+ENTRY(get_omap3630_restore_pointer_sz)
+ .word . - get_omap3630_restore_pointer
+
+ .text
+/* Function call to get the restore pointer for ES3 to resume from OFF */
ENTRY(get_es3_restore_pointer)
stmfd sp!, {lr} @ save registers on stack
adr r0, restore_es3
@@ -108,54 +103,23 @@ ENTRY(get_es3_restore_pointer)
ENTRY(get_es3_restore_pointer_sz)
.word . - get_es3_restore_pointer
-ENTRY(es3_sdrc_fix)
- ldr r4, sdrc_syscfg @ get config addr
- ldr r5, [r4] @ get value
- tst r5, #0x100 @ is part access blocked
- it eq
- biceq r5, r5, #0x100 @ clear bit if set
- str r5, [r4] @ write back change
- ldr r4, sdrc_mr_0 @ get config addr
- ldr r5, [r4] @ get value
- str r5, [r4] @ write back change
- ldr r4, sdrc_emr2_0 @ get config addr
- ldr r5, [r4] @ get value
- str r5, [r4] @ write back change
- ldr r4, sdrc_manual_0 @ get config addr
- mov r5, #0x2 @ autorefresh command
- str r5, [r4] @ kick off refreshes
- ldr r4, sdrc_mr_1 @ get config addr
- ldr r5, [r4] @ get value
- str r5, [r4] @ write back change
- ldr r4, sdrc_emr2_1 @ get config addr
- ldr r5, [r4] @ get value
- str r5, [r4] @ write back change
- ldr r4, sdrc_manual_1 @ get config addr
- mov r5, #0x2 @ autorefresh command
- str r5, [r4] @ kick off refreshes
- bx lr
-sdrc_syscfg:
- .word SDRC_SYSCONFIG_P
-sdrc_mr_0:
- .word SDRC_MR_0_P
-sdrc_emr2_0:
- .word SDRC_EMR2_0_P
-sdrc_manual_0:
- .word SDRC_MANUAL_0_P
-sdrc_mr_1:
- .word SDRC_MR_1_P
-sdrc_emr2_1:
- .word SDRC_EMR2_1_P
-sdrc_manual_1:
- .word SDRC_MANUAL_1_P
-ENTRY(es3_sdrc_fix_sz)
- .word . - es3_sdrc_fix
+ .text
+/*
+ * L2 cache needs to be toggled for stable OFF mode functionality on 3630.
+ * This function sets up a flag that will allow for this toggling to take
+ * place on 3630. Hopefully some version in the future may not need this.
+ */
+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
+ ldmfd sp!, {pc} @ restore regs and return
+ .text
/* Function to call rom code to save secure ram context */
ENTRY(save_secure_ram_context)
stmfd sp!, {r1-r12, lr} @ save registers on stack
-save_secure_ram_debug:
- /* b save_secure_ram_debug */ @ enable to debug save code
adr r3, api_params @ r3 points to parameters
str r0, [r3,#0x4] @ r0 has sdram address
ldr r12, high_mask
@@ -185,35 +149,162 @@ ENTRY(save_secure_ram_context_sz)
.word . - save_secure_ram_context
/*
+ * ======================
+ * == Idle entry point ==
+ * ======================
+ */
+
+/*
* Forces OMAP into idle state
*
- * omap34xx_suspend() - This bit of code just executes the WFI
- * for normal idles.
+ * omap34xx_cpu_suspend() - This bit of code saves the CPU context if needed
+ * and executes the WFI instruction. Calling WFI effectively changes the
+ * power domains states to the desired target power states.
+ *
*
- * Note: This code get's copied to internal SRAM at boot. When the OMAP
- * wakes up it continues execution at the point it went to sleep.
+ * Notes:
+ * - this code gets copied to internal SRAM at boot and after wake-up
+ * from OFF mode. The execution pointer in SRAM is _omap_sram_idle.
+ * - when the OMAP wakes up it continues at different execution points
+ * depending on the low power mode (non-OFF vs OFF modes),
+ * cf. 'Resume path for xxx mode' comments.
*/
ENTRY(omap34xx_cpu_suspend)
- stmfd sp!, {r0-r12, lr} @ save registers on stack
-loop:
- /*b loop*/ @Enable to debug by stepping through code
- /* r0 contains restore pointer in sdram */
- /* r1 contains information about saving context */
- ldr r4, sdrc_power @ read the SDRC_POWER register
- ldr r5, [r4] @ read the contents of SDRC_POWER
- orr r5, r5, #0x40 @ enable self refresh on idle req
- str r5, [r4] @ write back to SDRC_POWER register
+ stmfd sp!, {r0-r12, lr} @ save registers on stack
+ /*
+ * r0 contains 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
+ */
+
+ /* Directly jump to WFI is the context save is not required */
cmp r1, #0x0
- /* If context save is required, do that and execute wfi */
- bne save_context_wfi
+ beq omap3_do_wfi
+
+ /* Otherwise fall through to the save context code */
+save_context_wfi:
+ mov r8, r0 @ Store SDRAM address in r8
+ mrc p15, 0, r5, c1, c0, 1 @ Read Auxiliary Control Register
+ mov r4, #0x1 @ Number of parameters for restore call
+ stmia r8!, {r4-r5} @ Push parameters for restore call
+ mrc p15, 1, r5, c9, c0, 2 @ Read L2 AUX ctrl register
+ stmia r8!, {r4-r5} @ Push parameters for restore call
+
+ /* Check what that target sleep state is from r1 */
+ cmp r1, #0x2 @ Only L2 lost, no need to save context
+ beq clean_caches
+
+l1_logic_lost:
+ /* Store sp and spsr to SDRAM */
+ mov r4, sp
+ mrs r5, spsr
+ mov r6, 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
+ 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, 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
+ */
+ ldr r1, kernel_flush
+ mov lr, pc
+ bx r1
+
+omap3_do_wfi:
+ ldr r4, sdrc_power @ read the SDRC_POWER register
+ ldr r5, [r4] @ read the contents of SDRC_POWER
+ orr r5, r5, #0x40 @ enable self refresh on idle req
+ 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
+/*
+ * ===================================
+ * == WFI instruction => Enter idle ==
+ * ===================================
+ */
wfi @ wait for interrupt
+/*
+ * ===================================
+ * == Resume path for non-OFF modes ==
+ * ===================================
+ */
nop
nop
nop
@@ -226,9 +317,30 @@ loop:
nop
bl wait_sdrc_ok
- ldmfd sp!, {r0-r12, pc} @ restore regs and return
+/*
+ * ===================================
+ * == Exit point from non-OFF modes ==
+ * ===================================
+ */
+ ldmfd sp!, {r0-r12, pc} @ restore regs and return
+
+
+/*
+ * ==============================
+ * == Resume path for OFF mode ==
+ * ==============================
+ */
+
+/*
+ * The restore_* functions are called by the ROM code
+ * when back from WFI in OFF mode.
+ * Cf. the get_*restore_pointer functions.
+ *
+ * restore_es3: applies to 34xx >= ES3.0
+ * restore_3630: applies to 36xx
+ * restore: common code for 3xxx
+ */
restore_es3:
- /*b restore_es3*/ @ Enable to debug restore code
ldr r5, pm_prepwstst_core_p
ldr r4, [r5]
and r4, r4, #0x3
@@ -245,82 +357,117 @@ copy_to_sram:
bne copy_to_sram
ldr r1, sram_base
blx r1
+ b restore
+
+restore_3630:
+ ldr r1, pm_prepwstst_core_p
+ ldr r2, [r1]
+ and r2, r2, #0x3
+ cmp r2, #0x0 @ Check if previous power state of CORE is OFF
+ bne restore
+ /* Disable RTA before giving control */
+ ldr r1, control_mem_rta
+ mov r2, #OMAP36XX_RTA_DISABLE
+ str r2, [r1]
+
+ /* Fall through to common code for the remaining logic */
+
restore:
- /* b restore*/ @ Enable to debug restore code
- /* Check what was the reason for mpu reset and store the reason in r9*/
- /* 1 - Only L1 and logic lost */
- /* 2 - Only L2 lost - In this case, we wont be here */
- /* 3 - Both L1 and L2 lost */
- ldr r1, pm_pwstctrl_mpu
+ /*
+ * Check what was the reason for mpu reset and store the reason in r9:
+ * 0 - No context lost
+ * 1 - Only L1 and logic lost
+ * 2 - Only L2 lost - In this case, we wont be here
+ * 3 - Both L1 and L2 lost
+ */
+ ldr r1, pm_pwstctrl_mpu
ldr r2, [r1]
- and r2, r2, #0x3
- cmp r2, #0x0 @ Check if target power state was OFF or RET
- moveq r9, #0x3 @ MPU OFF => L1 and L2 lost
+ and r2, r2, #0x3
+ cmp r2, #0x0 @ Check if target power state was OFF or RET
+ moveq r9, #0x3 @ MPU OFF => L1 and L2 lost
movne r9, #0x1 @ Only L1 and L2 lost => avoid L2 invalidation
bne logic_l1_restore
+
+ ldr r0, l2dis_3630
+ cmp r0, #0x1 @ should we disable L2 on 3630?
+ bne skipl2dis
+ mrc p15, 0, r0, c1, c0, 1
+ bic r0, r0, #2 @ disable L2 cache
+ mcr p15, 0, r0, c1, c0, 1
+skipl2dis:
ldr r0, control_stat
ldr r1, [r0]
and r1, #0x700
cmp r1, #0x300
beq l2_inv_gp
- mov r0, #40 @ set service ID for PPA
- mov r12, r0 @ copy secure Service ID in r12
- mov r1, #0 @ set task id for ROM code in r1
- mov r2, #4 @ set some flags in r2, r6
+ mov r0, #40 @ set service ID for PPA
+ mov r12, r0 @ copy secure Service ID in r12
+ mov r1, #0 @ set task id for ROM code in r1
+ 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)
/* 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
- mov r1, #0 @ set task id for ROM code in r1
- mov r2, #4 @ set some flags in r2, r6
+ mov r0, #42 @ set service ID for PPA
+ mov r12, r0 @ copy secure Service ID in r12
+ mov r1, #0 @ set task id for ROM code in r1
+ mov r2, #4 @ set some flags in r2, r6
mov r6, #0xff
ldr r4, scratchpad_base
- ldr r3, [r4, #0xBC] @ r3 points to parameters
+ 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)
#ifdef CONFIG_OMAP3_L2_AUX_SECURE_SAVE_RESTORE
/* Restore L2 aux control register */
- @ set service ID for PPA
+ @ set service ID for PPA
mov r0, #CONFIG_OMAP3_L2_AUX_SECURE_SERVICE_SET_ID
- mov r12, r0 @ copy service ID in r12
- mov r1, #0 @ set task ID for ROM code in r1
- mov r2, #4 @ set some flags in r2, r6
+ mov r12, r0 @ copy service ID in r12
+ mov r1, #0 @ set task ID for ROM code in r1
+ mov r2, #4 @ set some flags in r2, r6
mov r6, #0xff
ldr r4, scratchpad_base
ldr r3, [r4, #0xBC]
- adds r3, r3, #8 @ r3 points to parameters
+ 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)
#endif
b logic_l1_restore
+
l2_inv_api_params:
- .word 0x1, 0x00
+ .word 0x1, 0x00
l2_inv_gp:
/* Execute smi to invalidate L2 cache */
- mov r12, #0x1 @ set up to invalide L2
-smi: .word 0xE1600070 @ Call SMI monitor (smieq)
+ mov r12, #0x1 @ set up to invalidate L2
+ .word 0xE1600070 @ 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)
+ .word 0xE1600070 @ 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)
+ .word 0xE1600070 @ Call SMI monitor (smieq)
logic_l1_restore:
+ ldr r1, l2dis_3630
+ cmp r1, #0x1 @ Test if L2 re-enable needed on 3630
+ bne skipl2reen
+ mrc p15, 0, r1, c1, c0, 1
+ orr r1, r1, #2 @ re-enable L2 cache
+ mcr p15, 0, r1, c1, c0, 1
+skipl2reen:
mov r1, #0
- /* Invalidate all instruction caches to PoU
- * and flush branch target cache */
+ /*
+ * Invalidate all instruction caches to PoU
+ * and flush branch target cache
+ */
mcr p15, 0, r1, c7, c5, 0
ldr r4, scratchpad_base
@@ -341,33 +488,33 @@ logic_l1_restore:
MCR p15, 0, r6, c2, c0, 1
/* Translation table base control register */
MCR p15, 0, r7, c2, c0, 2
- /*domain access Control Register */
+ /* Domain access Control Register */
MCR p15, 0, r8, c3, c0, 0
- /* data fault status Register */
+ /* Data fault status Register */
MCR p15, 0, r9, c5, c0, 0
- ldmia r3!,{r4-r8}
- /* instruction fault status Register */
+ ldmia r3!,{r4-r8}
+ /* Instruction fault status Register */
MCR p15, 0, r4, c5, c0, 1
- /*Data Auxiliary Fault Status Register */
+ /* Data Auxiliary Fault Status Register */
MCR p15, 0, r5, c5, c1, 0
- /*Instruction Auxiliary Fault Status Register*/
+ /* Instruction Auxiliary Fault Status Register*/
MCR p15, 0, r6, c5, c1, 1
- /*Data Fault Address Register */
+ /* Data Fault Address Register */
MCR p15, 0, r7, c6, c0, 0
- /*Instruction Fault Address Register*/
+ /* Instruction Fault Address Register*/
MCR p15, 0, r8, c6, c0, 2
- ldmia r3!,{r4-r7}
+ ldmia r3!,{r4-r7}
- /* user r/w thread and process ID */
+ /* User r/w thread and process ID */
MCR p15, 0, r4, c13, c0, 2
- /* user ro thread and process ID */
+ /* User ro thread and process ID */
MCR p15, 0, r5, c13, c0, 3
- /*Privileged only thread and process ID */
+ /* Privileged only thread and process ID */
MCR p15, 0, r6, c13, c0, 4
- /* cache size selection */
+ /* Cache size selection */
MCR p15, 2, r7, c0, c0, 0
- ldmia r3!,{r4-r8}
+ ldmia r3!,{r4-r8}
/* Data TLB lockdown registers */
MCR p15, 0, r4, c10, c0, 0
/* Instruction TLB lockdown registers */
@@ -379,26 +526,27 @@ logic_l1_restore:
/* Context PID */
MCR p15, 0, r8, c13, c0, 1
- ldmia r3!,{r4-r5}
- /* primary memory remap register */
+ ldmia r3!,{r4-r5}
+ /* Primary memory remap register */
MCR p15, 0, r4, c10, c2, 0
- /*normal memory remap register */
+ /* 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} @ load CPSR from SDRAM
+ msr cpsr, r4 @ store cpsr
/* Enabling MMU here */
- mrc p15, 0, r7, c2, c0, 2 /* Read TTBRControl */
- /* Extract N (0:2) bits and decide whether to use TTBR0 or TTBR1*/
+ mrc p15, 0, r7, c2, c0, 2 @ Read TTBRControl
+ /* Extract N (0:2) bits and decide whether to use TTBR0 or TTBR1 */
and r7, #0x7
cmp r7, #0x0
beq usettbr0
ttbr_error:
- /* More work needs to be done to support N[0:2] value other than 0
- * So looping here so that the error can be detected
- */
+ /*
+ * More work needs to be done to support N[0:2] value other than 0
+ * So looping here so that the error can be detected
+ */
b ttbr_error
usettbr0:
mrc p15, 0, r2, c2, c0, 0
@@ -406,21 +554,25 @@ usettbr0:
and r2, r5
mov r4, pc
ldr r5, table_index_mask
- and r4, r5 /* r4 = 31 to 20 bits of pc */
+ and r4, r5 @ r4 = 31 to 20 bits of pc
/* Extract the value to be written to table entry */
ldr r1, table_entry
- add r1, r1, r4 /* r1 has value to be written to table entry*/
+ /* r1 has the value to be written to table entry*/
+ add r1, r1, r4
/* Getting the address of table entry to modify */
lsr r4, #18
- add r2, r4 /* r2 has the location which needs to be modified */
+ /* r2 has the location which needs to be modified */
+ add r2, r4
/* Storing previous entry of location being modified */
ldr r5, scratchpad_base
ldr r4, [r2]
str r4, [r5, #0xC0]
/* Modify the table entry */
str r1, [r2]
- /* Storing address of entry being modified
- * - will be restored after enabling MMU */
+ /*
+ * Storing address of entry being modified
+ * - will be restored after enabling MMU
+ */
ldr r5, scratchpad_base
str r2, [r5, #0xC4]
@@ -429,8 +581,11 @@ usettbr0:
mcr p15, 0, r0, c7, c5, 6 @ Invalidate branch predictor array
mcr p15, 0, r0, c8, c5, 0 @ Invalidate instruction TLB
mcr p15, 0, r0, c8, c6, 0 @ Invalidate data TLB
- /* Restore control register but dont enable caches here*/
- /* Caches will be enabled after restoring MMU table entry */
+ /*
+ * Restore control register. This enables the MMU.
+ * The caches and prediction are not enabled here, they
+ * will be enabled after restoring the MMU table entry.
+ */
ldmia r3!, {r4}
/* Store previous value of control register in scratchpad */
str r4, [r5, #0xC8]
@@ -438,212 +593,144 @@ usettbr0:
and r4, r2
mcr p15, 0, r4, c1, c0, 0
- ldmfd sp!, {r0-r12, pc} @ restore regs and return
-save_context_wfi:
- /*b save_context_wfi*/ @ enable to debug save code
- mov r8, r0 /* Store SDRAM address in r8 */
- mrc p15, 0, r5, c1, c0, 1 @ Read Auxiliary Control Register
- mov r4, #0x1 @ Number of parameters for restore call
- stmia r8!, {r4-r5} @ Push parameters for restore call
- mrc p15, 1, r5, c9, c0, 2 @ Read L2 AUX ctrl register
- stmia r8!, {r4-r5} @ Push parameters for restore call
- /* Check what that target sleep state is:stored in r1*/
- /* 1 - Only L1 and logic lost */
- /* 2 - Only L2 lost */
- /* 3 - Both L1 and L2 lost */
- cmp r1, #0x2 /* Only L2 lost */
- beq clean_l2
- cmp r1, #0x1 /* L2 retained */
- /* r9 stores whether to clean L2 or not*/
- moveq r9, #0x0 /* Dont Clean L2 */
- movne r9, #0x1 /* Clean L2 */
-l1_logic_lost:
- /* Store sp and spsr to SDRAM */
- mov r4, sp
- mrs r5, spsr
- mov r6, 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,
- datat 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
- 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}
+/*
+ * ==============================
+ * == Exit point from OFF mode ==
+ * ==============================
+ */
+ ldmfd sp!, {r0-r12, pc} @ restore regs and return
- /* Store current cpsr*/
- mrs r2, cpsr
- stmia r8!, {r2}
- 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 r9, #1 /* Check whether L2 inval is required or not*/
- bne skip_l2_inval
-clean_l2:
- /* read clidr */
- mrc p15, 1, r0, c0, c0, 1
- /* extract loc from clidr */
- ands r3, r0, #0x7000000
- /* left align loc bit field */
- mov r3, r3, lsr #23
- /* if loc is 0, then no need to clean */
- beq finished
- /* start clean at cache level 0 */
- mov r10, #0
-loop1:
- /* work out 3x current cache level */
- add r2, r10, r10, lsr #1
- /* extract cache type bits from clidr*/
- mov r1, r0, lsr r2
- /* mask of the bits for current cache only */
- and r1, r1, #7
- /* see what cache we have at this level */
- cmp r1, #2
- /* skip if no cache, or just i-cache */
- blt skip
- /* select current cache level in cssr */
- mcr p15, 2, r10, c0, c0, 0
- /* isb to sych the new cssr&csidr */
- isb
- /* read the new csidr */
- mrc p15, 1, r1, c0, c0, 0
- /* extract the length of the cache lines */
- and r2, r1, #7
- /* add 4 (line length offset) */
- add r2, r2, #4
- ldr r4, assoc_mask
- /* find maximum number on the way size */
- ands r4, r4, r1, lsr #3
- /* find bit position of way size increment */
- clz r5, r4
- ldr r7, numset_mask
- /* extract max number of the index size*/
- ands r7, r7, r1, lsr #13
-loop2:
- mov r9, r4
- /* create working copy of max way size*/
-loop3:
- /* factor way and cache number into r11 */
- orr r11, r10, r9, lsl r5
- /* factor index number into r11 */
- orr r11, r11, r7, lsl r2
- /*clean & invalidate by set/way */
- mcr p15, 0, r11, c7, c10, 2
- /* decrement the way*/
- subs r9, r9, #1
- bge loop3
- /*decrement the index */
- subs r7, r7, #1
- bge loop2
-skip:
- add r10, r10, #2
- /* increment cache number */
- cmp r3, r10
- bgt loop1
-finished:
- /*swith back to cache level 0 */
- mov r10, #0
- /* select current cache level in cssr */
- mcr p15, 2, r10, c0, c0, 0
- isb
-skip_l2_inval:
- /* Data memory barrier and Data sync barrier */
- mov r1, #0
- mcr p15, 0, r1, c7, c10, 4
- mcr p15, 0, r1, c7, c10, 5
+/*
+ * Internal functions
+ */
- wfi @ wait for interrupt
- nop
- nop
- nop
- nop
- nop
- nop
- nop
- nop
- nop
- nop
- bl wait_sdrc_ok
- /* restore regs and return */
- ldmfd sp!, {r0-r12, pc}
+/* This function implements the erratum ID i443 WA, applies to 34xx >= ES3.0 */
+ .text
+ENTRY(es3_sdrc_fix)
+ ldr r4, sdrc_syscfg @ get config addr
+ ldr r5, [r4] @ get value
+ tst r5, #0x100 @ is part access blocked
+ it eq
+ biceq r5, r5, #0x100 @ clear bit if set
+ str r5, [r4] @ write back change
+ ldr r4, sdrc_mr_0 @ get config addr
+ ldr r5, [r4] @ get value
+ str r5, [r4] @ write back change
+ ldr r4, sdrc_emr2_0 @ get config addr
+ ldr r5, [r4] @ get value
+ str r5, [r4] @ write back change
+ ldr r4, sdrc_manual_0 @ get config addr
+ mov r5, #0x2 @ autorefresh command
+ str r5, [r4] @ kick off refreshes
+ ldr r4, sdrc_mr_1 @ get config addr
+ ldr r5, [r4] @ get value
+ str r5, [r4] @ write back change
+ ldr r4, sdrc_emr2_1 @ get config addr
+ ldr r5, [r4] @ get value
+ str r5, [r4] @ write back change
+ ldr r4, sdrc_manual_1 @ get config addr
+ mov r5, #0x2 @ autorefresh command
+ str r5, [r4] @ kick off refreshes
+ bx lr
+
+sdrc_syscfg:
+ .word SDRC_SYSCONFIG_P
+sdrc_mr_0:
+ .word SDRC_MR_0_P
+sdrc_emr2_0:
+ .word SDRC_EMR2_0_P
+sdrc_manual_0:
+ .word SDRC_MANUAL_0_P
+sdrc_mr_1:
+ .word SDRC_MR_1_P
+sdrc_emr2_1:
+ .word SDRC_EMR2_1_P
+sdrc_manual_1:
+ .word SDRC_MANUAL_1_P
+ENTRY(es3_sdrc_fix_sz)
+ .word . - es3_sdrc_fix
+
+/*
+ * This function implements the erratum ID i581 WA:
+ * SDRC state restore before accessing the SDRAM
+ *
+ * Only used at return from non-OFF mode. For OFF
+ * mode the ROM code configures the SDRC and
+ * the DPLL before calling the restore code directly
+ * from DDR.
+ */
/* Make sure SDRC accesses are ok */
wait_sdrc_ok:
- ldr r4, cm_idlest1_core
- ldr r5, [r4]
- and r5, r5, #0x2
- cmp r5, #0
- bne wait_sdrc_ok
- ldr r4, sdrc_power
- ldr r5, [r4]
- bic r5, r5, #0x40
- str r5, [r4]
+
+/* DPLL3 must be locked before accessing the SDRC. Maybe the HW ensures this */
+ ldr r4, cm_idlest_ckgen
+wait_dpll3_lock:
+ ldr r5, [r4]
+ tst r5, #1
+ beq wait_dpll3_lock
+
+ ldr r4, cm_idlest1_core
+wait_sdrc_ready:
+ ldr r5, [r4]
+ tst r5, #0x2
+ bne wait_sdrc_ready
+ /* allow DLL powerdown upon hw idle req */
+ ldr r4, sdrc_power
+ ldr r5, [r4]
+ bic r5, r5, #0x40
+ str r5, [r4]
+
+is_dll_in_lock_mode:
+ /* Is dll in lock mode? */
+ ldr r4, sdrc_dlla_ctrl
+ ldr r5, [r4]
+ tst r5, #0x4
+ bxne lr @ Return if locked
+ /* wait till dll locks */
+wait_dll_lock_timed:
+ ldr r4, wait_dll_lock_counter
+ add r4, r4, #1
+ str r4, wait_dll_lock_counter
+ ldr r4, sdrc_dlla_status
+ /* Wait 20uS for lock */
+ mov r6, #8
wait_dll_lock:
- /* Is dll in lock mode? */
- ldr r4, sdrc_dlla_ctrl
- ldr r5, [r4]
- tst r5, #0x4
- bxne lr
- /* wait till dll locks */
- ldr r4, sdrc_dlla_status
- ldr r5, [r4]
- and r5, r5, #0x4
- cmp r5, #0x4
- bne wait_dll_lock
- bx lr
+ subs r6, r6, #0x1
+ beq kick_dll
+ ldr r5, [r4]
+ and r5, r5, #0x4
+ cmp r5, #0x4
+ bne wait_dll_lock
+ bx lr @ Return when locked
+
+ /* disable/reenable DLL if not locked */
+kick_dll:
+ ldr r4, sdrc_dlla_ctrl
+ ldr r5, [r4]
+ mov r6, r5
+ bic r6, #(1<<3) @ disable dll
+ str r6, [r4]
+ dsb
+ orr r6, r6, #(1<<3) @ enable dll
+ str r6, [r4]
+ dsb
+ ldr r4, kick_counter
+ add r4, r4, #1
+ str r4, kick_counter
+ b wait_dll_lock_timed
cm_idlest1_core:
.word CM_IDLEST1_CORE_V
+cm_idlest_ckgen:
+ .word CM_IDLEST_CKGEN_V
sdrc_dlla_status:
.word SDRC_DLLA_STATUS_V
sdrc_dlla_ctrl:
.word SDRC_DLLA_CTRL_V
-pm_prepwstst_core:
- .word PM_PREPWSTST_CORE_V
pm_prepwstst_core_p:
.word PM_PREPWSTST_CORE_P
-pm_prepwstst_mpu:
- .word PM_PREPWSTST_MPU_V
pm_pwstctrl_mpu:
.word PM_PWSTCTRL_MPU_P
scratchpad_base:
@@ -651,13 +738,7 @@ scratchpad_base:
sram_base:
.word SRAM_BASE_P + 0x8000
sdrc_power:
- .word SDRC_POWER_V
-clk_stabilize_delay:
- .word 0x000001FF
-assoc_mask:
- .word 0x3ff
-numset_mask:
- .word 0x7fff
+ .word SDRC_POWER_V
ttbrbit_mask:
.word 0xFFFFC000
table_index_mask:
@@ -668,5 +749,20 @@ cache_pred_disable_mask:
.word 0xFFFFE7FB
control_stat:
.word CONTROL_STAT
+control_mem_rta:
+ .word CONTROL_MEM_RTA_CTRL
+kernel_flush:
+ .word v7_flush_dcache_all
+l2dis_3630:
+ .word 0
+ /*
+ * When exporting to userspace while the counters are in SRAM,
+ * these 2 words need to be at the end to facilitate retrival!
+ */
+kick_counter:
+ .word 0
+wait_dll_lock_counter:
+ .word 0
+
ENTRY(omap34xx_cpu_suspend_sz)
.word . - omap34xx_cpu_suspend
diff --git a/arch/arm/mach-s3c2412/Kconfig b/arch/arm/mach-s3c2412/Kconfig
index fa2e5bffbb8e..6983cb4d4cae 100644
--- a/arch/arm/mach-s3c2412/Kconfig
+++ b/arch/arm/mach-s3c2412/Kconfig
@@ -28,9 +28,16 @@ config S3C2412_DMA
config S3C2412_PM
bool
+ select S3C2412_PM_SLEEP
help
Internal config node to apply S3C2412 power management
+config S3C2412_PM_SLEEP
+ bool
+ help
+ Internal config node to apply sleep for S3C2412 power management.
+ Can be selected by another SoCs with similar sleep procedure.
+
# Note, the S3C2412 IOtiming support is in plat-s3c24xx
config S3C2412_CPUFREQ
diff --git a/arch/arm/mach-s3c2412/Makefile b/arch/arm/mach-s3c2412/Makefile
index 530ec46cbaea..6c48a91ea39e 100644
--- a/arch/arm/mach-s3c2412/Makefile
+++ b/arch/arm/mach-s3c2412/Makefile
@@ -14,7 +14,8 @@ obj-$(CONFIG_CPU_S3C2412) += irq.o
obj-$(CONFIG_CPU_S3C2412) += clock.o
obj-$(CONFIG_CPU_S3C2412) += gpio.o
obj-$(CONFIG_S3C2412_DMA) += dma.o
-obj-$(CONFIG_S3C2412_PM) += pm.o sleep.o
+obj-$(CONFIG_S3C2412_PM) += pm.o
+obj-$(CONFIG_S3C2412_PM_SLEEP) += sleep.o
obj-$(CONFIG_S3C2412_CPUFREQ) += cpu-freq.o
# Machine support
diff --git a/arch/arm/mach-s3c2416/Kconfig b/arch/arm/mach-s3c2416/Kconfig
index 27b3e7c9d613..df8d14974c90 100644
--- a/arch/arm/mach-s3c2416/Kconfig
+++ b/arch/arm/mach-s3c2416/Kconfig
@@ -27,6 +27,7 @@ config S3C2416_DMA
config S3C2416_PM
bool
+ select S3C2412_PM_SLEEP
help
Internal config node to apply S3C2416 power management
diff --git a/arch/arm/mach-s5pv210/mach-aquila.c b/arch/arm/mach-s5pv210/mach-aquila.c
index 28677caf3613..461aa035afc0 100644
--- a/arch/arm/mach-s5pv210/mach-aquila.c
+++ b/arch/arm/mach-s5pv210/mach-aquila.c
@@ -378,6 +378,12 @@ static struct max8998_regulator_data aquila_regulators[] = {
static struct max8998_platform_data aquila_max8998_pdata = {
.num_regulators = ARRAY_SIZE(aquila_regulators),
.regulators = aquila_regulators,
+ .buck1_set1 = S5PV210_GPH0(3),
+ .buck1_set2 = S5PV210_GPH0(4),
+ .buck2_set3 = S5PV210_GPH0(5),
+ .buck1_max_voltage1 = 1200000,
+ .buck1_max_voltage2 = 1200000,
+ .buck2_max_voltage = 1200000,
};
#endif
diff --git a/arch/arm/mach-s5pv210/mach-goni.c b/arch/arm/mach-s5pv210/mach-goni.c
index b1dcf964a768..e22d5112fd44 100644
--- a/arch/arm/mach-s5pv210/mach-goni.c
+++ b/arch/arm/mach-s5pv210/mach-goni.c
@@ -518,6 +518,12 @@ static struct max8998_regulator_data goni_regulators[] = {
static struct max8998_platform_data goni_max8998_pdata = {
.num_regulators = ARRAY_SIZE(goni_regulators),
.regulators = goni_regulators,
+ .buck1_set1 = S5PV210_GPH0(3),
+ .buck1_set2 = S5PV210_GPH0(4),
+ .buck2_set3 = S5PV210_GPH0(5),
+ .buck1_max_voltage1 = 1200000,
+ .buck1_max_voltage2 = 1200000,
+ .buck2_max_voltage = 1200000,
};
#endif
diff --git a/arch/arm/mach-shmobile/include/mach/entry-macro.S b/arch/arm/mach-shmobile/include/mach/entry-macro.S
index a285d13c7416..f428c4db2b60 100644
--- a/arch/arm/mach-shmobile/include/mach/entry-macro.S
+++ b/arch/arm/mach-shmobile/include/mach/entry-macro.S
@@ -1,4 +1,5 @@
/*
+ * Copyright (C) 2010 Magnus Damm
* Copyright (C) 2008 Renesas Solutions Corp.
*
* This program is free software; you can redistribute it and/or modify
@@ -14,24 +15,45 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include <mach/hardware.h>
#include <mach/irqs.h>
+#define INTCA_BASE 0xe6980000
+#define INTFLGA_OFFS 0x00000018 /* accept pending interrupt */
+#define INTEVTA_OFFS 0x00000020 /* vector number of accepted interrupt */
+#define INTLVLA_OFFS 0x00000030 /* priority level of accepted interrupt */
+#define INTLVLB_OFFS 0x00000034 /* previous priority level */
+
.macro disable_fiq
.endm
.macro get_irqnr_preamble, base, tmp
- ldr \base, =INTFLGA
+ ldr \base, =INTCA_BASE
.endm
.macro arch_ret_to_user, tmp1, tmp2
.endm
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
- ldr \irqnr, [\base]
+ /* The single INTFLGA read access below results in the following:
+ *
+ * 1. INTLVLB is updated with old priority value from INTLVLA
+ * 2. Highest priority interrupt is accepted
+ * 3. INTLVLA is updated to contain priority of accepted interrupt
+ * 4. Accepted interrupt vector is stored in INTFLGA and INTEVTA
+ */
+ ldr \irqnr, [\base, #INTFLGA_OFFS]
+
+ /* Restore INTLVLA with the value saved in INTLVLB.
+ * This is required to support interrupt priorities properly.
+ */
+ ldrb \tmp, [\base, #INTLVLB_OFFS]
+ strb \tmp, [\base, #INTLVLA_OFFS]
+
+ /* Handle invalid vector number case */
cmp \irqnr, #0
beq 1000f
- /* intevt to irq number */
+
+ /* Convert vector to irq number, same as the evt2irq() macro */
lsr \irqnr, \irqnr, #0x5
subs \irqnr, \irqnr, #16
diff --git a/arch/arm/mach-shmobile/include/mach/vmalloc.h b/arch/arm/mach-shmobile/include/mach/vmalloc.h
index 4aecf6e3a859..2b8fd8b942fe 100644
--- a/arch/arm/mach-shmobile/include/mach/vmalloc.h
+++ b/arch/arm/mach-shmobile/include/mach/vmalloc.h
@@ -2,6 +2,6 @@
#define __ASM_MACH_VMALLOC_H
/* Vmalloc at ... - 0xe5ffffff */
-#define VMALLOC_END 0xe6000000
+#define VMALLOC_END 0xe6000000UL
#endif /* __ASM_MACH_VMALLOC_H */
diff --git a/arch/arm/plat-omap/include/plat/sram.h b/arch/arm/plat-omap/include/plat/sram.h
index 5905100b29a1..9967d5e855c7 100644
--- a/arch/arm/plat-omap/include/plat/sram.h
+++ b/arch/arm/plat-omap/include/plat/sram.h
@@ -11,6 +11,7 @@
#ifndef __ARCH_ARM_OMAP_SRAM_H
#define __ARCH_ARM_OMAP_SRAM_H
+#ifndef __ASSEMBLY__
extern void * omap_sram_push(void * start, unsigned long size);
extern void omap_sram_reprogram_clock(u32 dpllctl, u32 ckctl);
@@ -74,4 +75,14 @@ extern void omap_push_sram_idle(void);
static inline void omap_push_sram_idle(void) {}
#endif /* CONFIG_PM */
+#endif /* __ASSEMBLY__ */
+
+/*
+ * OMAP2+: define the SRAM PA addresses.
+ * Used by the SRAM management code and the idle sleep code.
+ */
+#define OMAP2_SRAM_PA 0x40200000
+#define OMAP3_SRAM_PA 0x40200000
+#define OMAP4_SRAM_PA 0x40300000
+
#endif
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index 819ea0cfb81a..1a686c89d8dd 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -41,15 +41,12 @@
#define OMAP1_SRAM_PA 0x20000000
#define OMAP1_SRAM_VA VMALLOC_END
-#define OMAP2_SRAM_PA 0x40200000
-#define OMAP2_SRAM_PUB_PA 0x4020f800
+#define OMAP2_SRAM_PUB_PA (OMAP2_SRAM_PA + 0xf800)
#define OMAP2_SRAM_VA 0xfe400000
#define OMAP2_SRAM_PUB_VA (OMAP2_SRAM_VA + 0x800)
-#define OMAP3_SRAM_PA 0x40200000
#define OMAP3_SRAM_VA 0xfe400000
-#define OMAP3_SRAM_PUB_PA 0x40208000
+#define OMAP3_SRAM_PUB_PA (OMAP3_SRAM_PA + 0x8000)
#define OMAP3_SRAM_PUB_VA (OMAP3_SRAM_VA + 0x8000)
-#define OMAP4_SRAM_PA 0x40300000
#define OMAP4_SRAM_VA 0xfe400000
#define OMAP4_SRAM_PUB_PA (OMAP4_SRAM_PA + 0x4000)
#define OMAP4_SRAM_PUB_VA (OMAP4_SRAM_VA + 0x4000)
diff --git a/arch/arm/plat-s3c24xx/Kconfig b/arch/arm/plat-s3c24xx/Kconfig
index 5a27b1b538f2..eb105e61c746 100644
--- a/arch/arm/plat-s3c24xx/Kconfig
+++ b/arch/arm/plat-s3c24xx/Kconfig
@@ -8,7 +8,7 @@ config PLAT_S3C24XX
default y
select NO_IOPORT
select ARCH_REQUIRE_GPIOLIB
- select S3C_DEVICE_NAND
+ select S3C_DEV_NAND
select S3C_GPIO_CFG_S3C24XX
help
Base platform code for any Samsung S3C24XX device