Blackfin arch: Functional power management support
Enable: PM_SUSPEND_MEM -> Blackfin Hibernate to SDRAM This feature requires a special bootloader (u-boot) supporting return from hibernate. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Michael Hennerich
Bryan Wu
parent
4f13f548ce
commit
1efc80b53e
9 changed files with 1036 additions and 122 deletions
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@ -880,7 +880,7 @@ config ARCH_SUSPEND_POSSIBLE
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depends on !SMP
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choice
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prompt "Default Power Saving Mode"
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prompt "Standby Power Saving Mode"
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depends on PM
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default PM_BFIN_SLEEP_DEEPER
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config PM_BFIN_SLEEP_DEEPER
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@ -899,6 +899,8 @@ config PM_BFIN_SLEEP_DEEPER
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normal during Sleep Deeper, due to the reduced SCLK frequency.
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When in the sleep mode, system DMA access to L1 memory is not supported.
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If unsure, select "Sleep Deeper".
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config PM_BFIN_SLEEP
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bool "Sleep"
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help
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@ -906,15 +908,17 @@ config PM_BFIN_SLEEP
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dissipation by disabling the clock to the processor core (CCLK).
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The PLL and system clock (SCLK), however, continue to operate in
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this mode. Typically an external event or RTC activity will wake
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up the processor. When in the sleep mode,
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system DMA access to L1 memory is not supported.
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up the processor. When in the sleep mode, system DMA access to L1
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memory is not supported.
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If unsure, select "Sleep Deeper".
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endchoice
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config PM_WAKEUP_BY_GPIO
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bool "Cause Wakeup Event by GPIO"
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bool "Allow Wakeup from Standby by GPIO"
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config PM_WAKEUP_GPIO_NUMBER
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int "Wakeup GPIO number"
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int "GPIO number"
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range 0 47
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depends on PM_WAKEUP_BY_GPIO
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default 2 if BFIN537_STAMP
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@ -935,6 +939,58 @@ config PM_WAKEUP_GPIO_POLAR_EDGE_B
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bool "Both EDGE"
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endchoice
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comment "Possible Suspend Mem / Hibernate Wake-Up Sources"
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depends on PM
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config PM_BFIN_WAKE_RTC
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bool "Allow Wake-Up from RESET and on-chip RTC"
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depends on PM
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default n
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help
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Enable RTC Wake-Up (Voltage Regulator Power-Up)
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config PM_BFIN_WAKE_PH6
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bool "Allow Wake-Up from on-chip PHY or PH6 GP"
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depends on PM && (BF52x || BF534 || BF536 || BF537)
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default n
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help
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Enable PHY and PH6 GP Wake-Up (Voltage Regulator Power-Up)
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config PM_BFIN_WAKE_CAN
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bool "Allow Wake-Up from on-chip CAN0/1"
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depends on PM && (BF54x || BF534 || BF536 || BF537)
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default n
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help
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Enable CAN0/1 Wake-Up (Voltage Regulator Power-Up)
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config PM_BFIN_WAKE_GP
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bool "Allow Wake-Up from GPIOs"
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depends on PM && BF54x
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default n
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help
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Enable General-Purpose Wake-Up (Voltage Regulator Power-Up)
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config PM_BFIN_WAKE_USB
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bool "Allow Wake-Up from on-chip USB"
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depends on PM && (BF54x || BF52x)
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default n
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help
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Enable USB Wake-Up (Voltage Regulator Power-Up)
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config PM_BFIN_WAKE_KEYPAD
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bool "Allow Wake-Up from on-chip Keypad"
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depends on PM && BF54x
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default n
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help
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Enable Keypad Wake-Up (Voltage Regulator Power-Up)
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config PM_BFIN_WAKE_ROTARY
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bool "Allow Wake-Up from on-chip Rotary"
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depends on PM && BF54x
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default n
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help
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Enable Rotary Wake-Up (Voltage Regulator Power-Up)
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endmenu
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menu "CPU Frequency scaling"
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@ -472,6 +472,32 @@ unsigned long get_dma_curr_addr(unsigned int channel)
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}
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EXPORT_SYMBOL(get_dma_curr_addr);
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#ifdef CONFIG_PM
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int blackfin_dma_suspend(void)
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{
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int i;
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for (i = 0; i < MAX_BLACKFIN_DMA_CHANNEL; i++) {
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if (dma_ch[i].chan_status == DMA_CHANNEL_ENABLED) {
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printk(KERN_ERR "DMA Channel %d failed to suspend\n", i);
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return -EBUSY;
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}
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dma_ch[i].saved_peripheral_map = dma_ch[i].regs->peripheral_map;
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}
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return 0;
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}
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void blackfin_dma_resume(void)
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{
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int i;
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for (i = 0; i < MAX_BLACKFIN_DMA_CHANNEL; i++)
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dma_ch[i].regs->peripheral_map = dma_ch[i].saved_peripheral_map;
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}
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#endif
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static void *__dma_memcpy(void *dest, const void *src, size_t size)
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{
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int direction; /* 1 - address decrease, 0 - address increase */
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@ -186,7 +186,10 @@ static struct str_ident {
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char name[RESOURCE_LABEL_SIZE];
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} str_ident[MAX_RESOURCES];
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#if defined(CONFIG_PM) && !defined(CONFIG_BF54x)
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#if defined(CONFIG_PM)
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#if defined(CONFIG_BF54x)
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static struct gpio_port_s gpio_bank_saved[gpio_bank(MAX_BLACKFIN_GPIOS)];
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#else
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static unsigned short wakeup_map[gpio_bank(MAX_BLACKFIN_GPIOS)];
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static unsigned char wakeup_flags_map[MAX_BLACKFIN_GPIOS];
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static struct gpio_port_s gpio_bank_saved[gpio_bank(MAX_BLACKFIN_GPIOS)];
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@ -206,7 +209,7 @@ static unsigned int sic_iwr_irqs[gpio_bank(MAX_BLACKFIN_GPIOS)] = {IRQ_PORTF_INT
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#ifdef BF561_FAMILY
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static unsigned int sic_iwr_irqs[gpio_bank(MAX_BLACKFIN_GPIOS)] = {IRQ_PROG0_INTB, IRQ_PROG1_INTB, IRQ_PROG2_INTB};
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#endif
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#endif
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#endif /* CONFIG_PM */
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#if defined(BF548_FAMILY)
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@ -667,7 +670,7 @@ static int bfin_gpio_wakeup_type(unsigned gpio, unsigned char type)
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return 0;
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}
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u32 bfin_pm_setup(void)
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u32 bfin_pm_standby_setup(void)
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{
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u16 bank, mask, i, gpio;
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@ -679,7 +682,7 @@ u32 bfin_pm_setup(void)
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gpio_bankb[bank]->maskb = 0;
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if (mask) {
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#ifdef BF537_FAMILY
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#if defined(BF527_FAMILY) || defined(BF537_FAMILY)
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gpio_bank_saved[bank].fer = *port_fer[bank];
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#endif
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gpio_bank_saved[bank].inen = gpio_bankb[bank]->inen;
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@ -715,7 +718,7 @@ u32 bfin_pm_setup(void)
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return 0;
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}
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void bfin_pm_restore(void)
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void bfin_pm_standby_restore(void)
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{
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u16 bank, mask, i;
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@ -724,7 +727,7 @@ void bfin_pm_restore(void)
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bank = gpio_bank(i);
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if (mask) {
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#ifdef BF537_FAMILY
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#if defined(BF527_FAMILY) || defined(BF537_FAMILY)
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*port_fer[bank] = gpio_bank_saved[bank].fer;
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#endif
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gpio_bankb[bank]->inen = gpio_bank_saved[bank].inen;
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@ -743,8 +746,111 @@ void bfin_pm_restore(void)
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AWA_DUMMY_READ(maskb);
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}
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void bfin_gpio_pm_hibernate_suspend(void)
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{
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int i, bank;
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for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) {
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bank = gpio_bank(i);
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#if defined(BF527_FAMILY) || defined(BF537_FAMILY)
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gpio_bank_saved[bank].fer = *port_fer[bank];
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#ifdef BF527_FAMILY
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gpio_bank_saved[bank].mux = *port_mux[bank];
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#else
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if (bank == 0)
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gpio_bank_saved[bank].mux = bfin_read_PORT_MUX();
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#endif
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#endif
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gpio_bank_saved[bank].data = gpio_bankb[bank]->data;
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gpio_bank_saved[bank].inen = gpio_bankb[bank]->inen;
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gpio_bank_saved[bank].polar = gpio_bankb[bank]->polar;
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gpio_bank_saved[bank].dir = gpio_bankb[bank]->dir;
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gpio_bank_saved[bank].edge = gpio_bankb[bank]->edge;
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gpio_bank_saved[bank].both = gpio_bankb[bank]->both;
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gpio_bank_saved[bank].maska = gpio_bankb[bank]->maska;
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}
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AWA_DUMMY_READ(maska);
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}
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void bfin_gpio_pm_hibernate_restore(void)
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{
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int i, bank;
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for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) {
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bank = gpio_bank(i);
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#if defined(BF527_FAMILY) || defined(BF537_FAMILY)
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#ifdef BF527_FAMILY
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*port_mux[bank] = gpio_bank_saved[bank].mux;
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#else
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if (bank == 0)
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bfin_write_PORT_MUX(gpio_bank_saved[bank].mux);
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#endif
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*port_fer[bank] = gpio_bank_saved[bank].fer;
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#endif
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gpio_bankb[bank]->inen = gpio_bank_saved[bank].inen;
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gpio_bankb[bank]->dir = gpio_bank_saved[bank].dir;
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gpio_bankb[bank]->polar = gpio_bank_saved[bank].polar;
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gpio_bankb[bank]->edge = gpio_bank_saved[bank].edge;
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gpio_bankb[bank]->both = gpio_bank_saved[bank].both;
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gpio_bankb[bank]->data_set = gpio_bank_saved[bank].data
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| gpio_bank_saved[bank].dir;
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gpio_bankb[bank]->maska = gpio_bank_saved[bank].maska;
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}
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AWA_DUMMY_READ(maska);
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}
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#endif
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#else /* BF548_FAMILY */
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#ifdef CONFIG_PM
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u32 bfin_pm_standby_setup(void)
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{
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return 0;
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}
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void bfin_pm_standby_restore(void)
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{
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}
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void bfin_gpio_pm_hibernate_suspend(void)
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{
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int i, bank;
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for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) {
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bank = gpio_bank(i);
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gpio_bank_saved[bank].fer = gpio_array[bank]->port_fer;
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gpio_bank_saved[bank].mux = gpio_array[bank]->port_mux;
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gpio_bank_saved[bank].data = gpio_array[bank]->port_data;
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gpio_bank_saved[bank].data = gpio_array[bank]->port_data;
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gpio_bank_saved[bank].inen = gpio_array[bank]->port_inen;
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gpio_bank_saved[bank].dir = gpio_array[bank]->port_dir_set;
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}
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}
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void bfin_gpio_pm_hibernate_restore(void)
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{
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int i, bank;
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for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) {
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bank = gpio_bank(i);
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gpio_array[bank]->port_mux = gpio_bank_saved[bank].mux;
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gpio_array[bank]->port_fer = gpio_bank_saved[bank].fer;
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gpio_array[bank]->port_inen = gpio_bank_saved[bank].inen;
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gpio_array[bank]->port_dir_set = gpio_bank_saved[bank].dir;
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gpio_array[bank]->port_set = gpio_bank_saved[bank].data
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| gpio_bank_saved[bank].dir;
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}
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}
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#endif
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unsigned short get_gpio_dir(unsigned gpio)
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{
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@ -7,7 +7,7 @@
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#include <linux/linkage.h>
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#include <asm/blackfin.h>
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#include <asm/mach/irq.h>
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#include <asm/dpmc.h>
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.section .l1.text
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@ -56,26 +56,25 @@ ENTRY(_hibernate_mode)
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[--SP] = ( R7:0, P5:0 );
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[--SP] = RETS;
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R3 = R0;
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R0 = IWR_DISABLE_ALL;
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R1 = IWR_DISABLE_ALL;
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R2 = IWR_DISABLE_ALL;
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call _set_sic_iwr;
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call _set_dram_srfs;
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SSYNC;
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R0 = 0xFFFF (Z);
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call _set_rtc_istat;
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P0.H = hi(VR_CTL);
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P0.L = lo(VR_CTL);
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R1 = W[P0](z);
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BITSET (R1, 8);
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BITCLR (R1, 0);
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BITCLR (R1, 1);
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W[P0] = R1.L;
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SSYNC;
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W[P0] = R3.L;
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CLI R2;
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IDLE;
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/* Actually, adding anything may not be necessary...SDRAM contents
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* are lost
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*/
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.Lforever:
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jump .Lforever;
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ENTRY(_deep_sleep)
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[--SP] = ( R7:0, P5:0 );
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@ -233,51 +232,70 @@ ENTRY(_sleep_deeper)
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( R7:0, P5:0 ) = [SP++];
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RTS;
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ENTRY(_set_dram_srfs)
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/* set the dram to self refresh mode */
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#if defined(CONFIG_BF54x)
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SSYNC;
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#if defined(EBIU_RSTCTL) /* DDR */
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P0.H = hi(EBIU_RSTCTL);
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P0.L = lo(EBIU_RSTCTL);
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R2 = [P0];
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R3.H = hi(SRREQ);
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R3.L = lo(SRREQ);
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#else
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P0.H = hi(EBIU_SDGCTL);
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P0.L = lo(EBIU_SDGCTL);
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R2 = [P0];
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R3.H = hi(SRFS);
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R3.L = lo(SRFS);
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#endif
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R2 = R2|R3;
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BITSET(R2, 3); /* SRREQ enter self-refresh mode */
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[P0] = R2;
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ssync;
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#if defined(CONFIG_BF54x)
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.LSRR_MODE:
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SSYNC;
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1:
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R2 = [P0];
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CC = BITTST(R2, 4);
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if !CC JUMP .LSRR_MODE;
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if !CC JUMP 1b;
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#else /* SDRAM */
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P0.L = lo(EBIU_SDGCTL);
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P0.H = hi(EBIU_SDGCTL);
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R2 = [P0];
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BITSET(R2, 24); /* SRFS enter self-refresh mode */
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[P0] = R2;
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SSYNC;
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P0.L = lo(EBIU_SDSTAT);
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P0.H = hi(EBIU_SDSTAT);
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1:
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R2 = w[P0];
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SSYNC;
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cc = BITTST(R2, 1); /* SDSRA poll self-refresh status */
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if !cc jump 1b;
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P0.L = lo(EBIU_SDGCTL);
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P0.H = hi(EBIU_SDGCTL);
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R2 = [P0];
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BITCLR(R2, 0); /* SCTLE disable CLKOUT */
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[P0] = R2;
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#endif
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RTS;
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ENTRY(_unset_dram_srfs)
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/* set the dram out of self refresh mode */
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#if defined(CONFIG_BF54x)
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#if defined(EBIU_RSTCTL) /* DDR */
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P0.H = hi(EBIU_RSTCTL);
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P0.L = lo(EBIU_RSTCTL);
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R2 = [P0];
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R3.H = hi(SRREQ);
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R3.L = lo(SRREQ);
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#else
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P0.H = hi(EBIU_SDGCTL);
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P0.L = lo(EBIU_SDGCTL);
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R2 = [P0];
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R3.H = hi(SRFS);
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R3.L = lo(SRFS);
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#endif
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R3 = ~R3;
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R2 = R2&R3;
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BITCLR(R2, 3); /* clear SRREQ bit */
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[P0] = R2;
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ssync;
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#elif defined(EBIU_SDGCTL) /* SDRAM */
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P0.L = lo(EBIU_SDGCTL); /* release CLKOUT from self-refresh */
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P0.H = hi(EBIU_SDGCTL);
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R2 = [P0];
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BITSET(R2, 0); /* SCTLE enable CLKOUT */
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[P0] = R2
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SSYNC;
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P0.L = lo(EBIU_SDGCTL); /* release SDRAM from self-refresh */
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P0.H = hi(EBIU_SDGCTL);
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R2 = [P0];
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BITCLR(R2, 24); /* clear SRFS bit */
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[P0] = R2
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#endif
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SSYNC;
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RTS;
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ENTRY(_set_sic_iwr)
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@ -307,6 +325,11 @@ ENTRY(_set_rtc_istat)
|
|||
P0.L = lo(RTC_ISTAT);
|
||||
w[P0] = R0.L;
|
||||
SSYNC;
|
||||
#elif (ANOMALY_05000371)
|
||||
nop;
|
||||
nop;
|
||||
nop;
|
||||
nop;
|
||||
#endif
|
||||
RTS;
|
||||
|
||||
|
|
@ -318,3 +341,508 @@ ENTRY(_test_pll_locked)
|
|||
CC = BITTST(R0,5);
|
||||
IF !CC JUMP 1b;
|
||||
RTS;
|
||||
|
||||
.section .text
|
||||
|
||||
|
||||
ENTRY(_do_hibernate)
|
||||
[--SP] = ( R7:0, P5:0 );
|
||||
[--SP] = RETS;
|
||||
/* Save System MMRs */
|
||||
R2 = R0;
|
||||
P0.H = hi(PLL_CTL);
|
||||
P0.L = lo(PLL_CTL);
|
||||
|
||||
#ifdef SIC_IMASK0
|
||||
PM_SYS_PUSH(SIC_IMASK0)
|
||||
#endif
|
||||
#ifdef SIC_IMASK1
|
||||
PM_SYS_PUSH(SIC_IMASK1)
|
||||
#endif
|
||||
#ifdef SIC_IMASK2
|
||||
PM_SYS_PUSH(SIC_IMASK2)
|
||||
#endif
|
||||
#ifdef SIC_IMASK
|
||||
PM_SYS_PUSH(SIC_IMASK)
|
||||
#endif
|
||||
#ifdef SICA_IMASK0
|
||||
PM_SYS_PUSH(SICA_IMASK0)
|
||||
#endif
|
||||
#ifdef SICA_IMASK1
|
||||
PM_SYS_PUSH(SICA_IMASK1)
|
||||
#endif
|
||||
#ifdef SIC_IAR2
|
||||
PM_SYS_PUSH(SIC_IAR0)
|
||||
PM_SYS_PUSH(SIC_IAR1)
|
||||
PM_SYS_PUSH(SIC_IAR2)
|
||||
#endif
|
||||
#ifdef SIC_IAR3
|
||||
PM_SYS_PUSH(SIC_IAR3)
|
||||
#endif
|
||||
#ifdef SIC_IAR4
|
||||
PM_SYS_PUSH(SIC_IAR4)
|
||||
PM_SYS_PUSH(SIC_IAR5)
|
||||
PM_SYS_PUSH(SIC_IAR6)
|
||||
#endif
|
||||
#ifdef SIC_IAR7
|
||||
PM_SYS_PUSH(SIC_IAR7)
|
||||
#endif
|
||||
#ifdef SIC_IAR8
|
||||
PM_SYS_PUSH(SIC_IAR8)
|
||||
PM_SYS_PUSH(SIC_IAR9)
|
||||
PM_SYS_PUSH(SIC_IAR10)
|
||||
PM_SYS_PUSH(SIC_IAR11)
|
||||
#endif
|
||||
|
||||
#ifdef SICA_IAR0
|
||||
PM_SYS_PUSH(SICA_IAR0)
|
||||
PM_SYS_PUSH(SICA_IAR1)
|
||||
PM_SYS_PUSH(SICA_IAR2)
|
||||
PM_SYS_PUSH(SICA_IAR3)
|
||||
PM_SYS_PUSH(SICA_IAR4)
|
||||
PM_SYS_PUSH(SICA_IAR5)
|
||||
PM_SYS_PUSH(SICA_IAR6)
|
||||
PM_SYS_PUSH(SICA_IAR7)
|
||||
#endif
|
||||
|
||||
#ifdef SIC_IWR
|
||||
PM_SYS_PUSH(SIC_IWR)
|
||||
#endif
|
||||
#ifdef SIC_IWR0
|
||||
PM_SYS_PUSH(SIC_IWR0)
|
||||
#endif
|
||||
#ifdef SIC_IWR1
|
||||
PM_SYS_PUSH(SIC_IWR1)
|
||||
#endif
|
||||
#ifdef SIC_IWR2
|
||||
PM_SYS_PUSH(SIC_IWR2)
|
||||
#endif
|
||||
#ifdef SICA_IWR0
|
||||
PM_SYS_PUSH(SICA_IWR0)
|
||||
#endif
|
||||
#ifdef SICA_IWR1
|
||||
PM_SYS_PUSH(SICA_IWR1)
|
||||
#endif
|
||||
|
||||
#ifdef PINT0_ASSIGN
|
||||
PM_SYS_PUSH(PINT0_ASSIGN)
|
||||
PM_SYS_PUSH(PINT1_ASSIGN)
|
||||
PM_SYS_PUSH(PINT2_ASSIGN)
|
||||
PM_SYS_PUSH(PINT3_ASSIGN)
|
||||
#endif
|
||||
|
||||
PM_SYS_PUSH(EBIU_AMBCTL0)
|
||||
PM_SYS_PUSH(EBIU_AMBCTL1)
|
||||
PM_SYS_PUSH16(EBIU_AMGCTL)
|
||||
|
||||
#ifdef EBIU_FCTL
|
||||
PM_SYS_PUSH(EBIU_MBSCTL)
|
||||
PM_SYS_PUSH(EBIU_MODE)
|
||||
PM_SYS_PUSH(EBIU_FCTL)
|
||||
#endif
|
||||
|
||||
PM_SYS_PUSH16(SYSCR)
|
||||
|
||||
/* Save Core MMRs */
|
||||
P0.H = hi(SRAM_BASE_ADDRESS);
|
||||
P0.L = lo(SRAM_BASE_ADDRESS);
|
||||
|
||||
PM_PUSH(DMEM_CONTROL)
|
||||
PM_PUSH(DCPLB_ADDR0)
|
||||
PM_PUSH(DCPLB_ADDR1)
|
||||
PM_PUSH(DCPLB_ADDR2)
|
||||
PM_PUSH(DCPLB_ADDR3)
|
||||
PM_PUSH(DCPLB_ADDR4)
|
||||
PM_PUSH(DCPLB_ADDR5)
|
||||
PM_PUSH(DCPLB_ADDR6)
|
||||
PM_PUSH(DCPLB_ADDR7)
|
||||
PM_PUSH(DCPLB_ADDR8)
|
||||
PM_PUSH(DCPLB_ADDR9)
|
||||
PM_PUSH(DCPLB_ADDR10)
|
||||
PM_PUSH(DCPLB_ADDR11)
|
||||
PM_PUSH(DCPLB_ADDR12)
|
||||
PM_PUSH(DCPLB_ADDR13)
|
||||
PM_PUSH(DCPLB_ADDR14)
|
||||
PM_PUSH(DCPLB_ADDR15)
|
||||
PM_PUSH(DCPLB_DATA0)
|
||||
PM_PUSH(DCPLB_DATA1)
|
||||
PM_PUSH(DCPLB_DATA2)
|
||||
PM_PUSH(DCPLB_DATA3)
|
||||
PM_PUSH(DCPLB_DATA4)
|
||||
PM_PUSH(DCPLB_DATA5)
|
||||
PM_PUSH(DCPLB_DATA6)
|
||||
PM_PUSH(DCPLB_DATA7)
|
||||
PM_PUSH(DCPLB_DATA8)
|
||||
PM_PUSH(DCPLB_DATA9)
|
||||
PM_PUSH(DCPLB_DATA10)
|
||||
PM_PUSH(DCPLB_DATA11)
|
||||
PM_PUSH(DCPLB_DATA12)
|
||||
PM_PUSH(DCPLB_DATA13)
|
||||
PM_PUSH(DCPLB_DATA14)
|
||||
PM_PUSH(DCPLB_DATA15)
|
||||
PM_PUSH(IMEM_CONTROL)
|
||||
PM_PUSH(ICPLB_ADDR0)
|
||||
PM_PUSH(ICPLB_ADDR1)
|
||||
PM_PUSH(ICPLB_ADDR2)
|
||||
PM_PUSH(ICPLB_ADDR3)
|
||||
PM_PUSH(ICPLB_ADDR4)
|
||||
PM_PUSH(ICPLB_ADDR5)
|
||||
PM_PUSH(ICPLB_ADDR6)
|
||||
PM_PUSH(ICPLB_ADDR7)
|
||||
PM_PUSH(ICPLB_ADDR8)
|
||||
PM_PUSH(ICPLB_ADDR9)
|
||||
PM_PUSH(ICPLB_ADDR10)
|
||||
PM_PUSH(ICPLB_ADDR11)
|
||||
PM_PUSH(ICPLB_ADDR12)
|
||||
PM_PUSH(ICPLB_ADDR13)
|
||||
PM_PUSH(ICPLB_ADDR14)
|
||||
PM_PUSH(ICPLB_ADDR15)
|
||||
PM_PUSH(ICPLB_DATA0)
|
||||
PM_PUSH(ICPLB_DATA1)
|
||||
PM_PUSH(ICPLB_DATA2)
|
||||
PM_PUSH(ICPLB_DATA3)
|
||||
PM_PUSH(ICPLB_DATA4)
|
||||
PM_PUSH(ICPLB_DATA5)
|
||||
PM_PUSH(ICPLB_DATA6)
|
||||
PM_PUSH(ICPLB_DATA7)
|
||||
PM_PUSH(ICPLB_DATA8)
|
||||
PM_PUSH(ICPLB_DATA9)
|
||||
PM_PUSH(ICPLB_DATA10)
|
||||
PM_PUSH(ICPLB_DATA11)
|
||||
PM_PUSH(ICPLB_DATA12)
|
||||
PM_PUSH(ICPLB_DATA13)
|
||||
PM_PUSH(ICPLB_DATA14)
|
||||
PM_PUSH(ICPLB_DATA15)
|
||||
PM_PUSH(EVT0)
|
||||
PM_PUSH(EVT1)
|
||||
PM_PUSH(EVT2)
|
||||
PM_PUSH(EVT3)
|
||||
PM_PUSH(EVT4)
|
||||
PM_PUSH(EVT5)
|
||||
PM_PUSH(EVT6)
|
||||
PM_PUSH(EVT7)
|
||||
PM_PUSH(EVT8)
|
||||
PM_PUSH(EVT9)
|
||||
PM_PUSH(EVT10)
|
||||
PM_PUSH(EVT11)
|
||||
PM_PUSH(EVT12)
|
||||
PM_PUSH(EVT13)
|
||||
PM_PUSH(EVT14)
|
||||
PM_PUSH(EVT15)
|
||||
PM_PUSH(IMASK)
|
||||
PM_PUSH(ILAT)
|
||||
PM_PUSH(IPRIO)
|
||||
PM_PUSH(TCNTL)
|
||||
PM_PUSH(TPERIOD)
|
||||
PM_PUSH(TSCALE)
|
||||
PM_PUSH(TCOUNT)
|
||||
PM_PUSH(TBUFCTL)
|
||||
|
||||
/* Save Core Registers */
|
||||
[--sp] = SYSCFG;
|
||||
[--sp] = ( R7:0, P5:0 );
|
||||
[--sp] = fp;
|
||||
[--sp] = usp;
|
||||
|
||||
[--sp] = i0;
|
||||
[--sp] = i1;
|
||||
[--sp] = i2;
|
||||
[--sp] = i3;
|
||||
|
||||
[--sp] = m0;
|
||||
[--sp] = m1;
|
||||
[--sp] = m2;
|
||||
[--sp] = m3;
|
||||
|
||||
[--sp] = l0;
|
||||
[--sp] = l1;
|
||||
[--sp] = l2;
|
||||
[--sp] = l3;
|
||||
|
||||
[--sp] = b0;
|
||||
[--sp] = b1;
|
||||
[--sp] = b2;
|
||||
[--sp] = b3;
|
||||
[--sp] = a0.x;
|
||||
[--sp] = a0.w;
|
||||
[--sp] = a1.x;
|
||||
[--sp] = a1.w;
|
||||
|
||||
[--sp] = LC0;
|
||||
[--sp] = LC1;
|
||||
[--sp] = LT0;
|
||||
[--sp] = LT1;
|
||||
[--sp] = LB0;
|
||||
[--sp] = LB1;
|
||||
|
||||
[--sp] = ASTAT;
|
||||
[--sp] = CYCLES;
|
||||
[--sp] = CYCLES2;
|
||||
|
||||
[--sp] = RETS;
|
||||
r0 = RETI;
|
||||
[--sp] = r0;
|
||||
[--sp] = RETX;
|
||||
[--sp] = RETN;
|
||||
[--sp] = RETE;
|
||||
[--sp] = SEQSTAT;
|
||||
|
||||
/* Save Magic, return address and Stack Pointer */
|
||||
P0.H = 0;
|
||||
P0.L = 0;
|
||||
R0.H = 0xDEAD; /* Hibernate Magic */
|
||||
R0.L = 0xBEEF;
|
||||
[P0++] = R0; /* Store Hibernate Magic */
|
||||
R0.H = pm_resume_here;
|
||||
R0.L = pm_resume_here;
|
||||
[P0++] = R0; /* Save Return Address */
|
||||
[P0++] = SP; /* Save Stack Pointer */
|
||||
P0.H = _hibernate_mode;
|
||||
P0.L = _hibernate_mode;
|
||||
R0 = R2;
|
||||
call (P0); /* Goodbye */
|
||||
|
||||
pm_resume_here:
|
||||
|
||||
/* Restore Core Registers */
|
||||
SEQSTAT = [sp++];
|
||||
RETE = [sp++];
|
||||
RETN = [sp++];
|
||||
RETX = [sp++];
|
||||
r0 = [sp++];
|
||||
RETI = r0;
|
||||
RETS = [sp++];
|
||||
|
||||
CYCLES2 = [sp++];
|
||||
CYCLES = [sp++];
|
||||
ASTAT = [sp++];
|
||||
|
||||
LB1 = [sp++];
|
||||
LB0 = [sp++];
|
||||
LT1 = [sp++];
|
||||
LT0 = [sp++];
|
||||
LC1 = [sp++];
|
||||
LC0 = [sp++];
|
||||
|
||||
a1.w = [sp++];
|
||||
a1.x = [sp++];
|
||||
a0.w = [sp++];
|
||||
a0.x = [sp++];
|
||||
b3 = [sp++];
|
||||
b2 = [sp++];
|
||||
b1 = [sp++];
|
||||
b0 = [sp++];
|
||||
|
||||
l3 = [sp++];
|
||||
l2 = [sp++];
|
||||
l1 = [sp++];
|
||||
l0 = [sp++];
|
||||
|
||||
m3 = [sp++];
|
||||
m2 = [sp++];
|
||||
m1 = [sp++];
|
||||
m0 = [sp++];
|
||||
|
||||
i3 = [sp++];
|
||||
i2 = [sp++];
|
||||
i1 = [sp++];
|
||||
i0 = [sp++];
|
||||
|
||||
usp = [sp++];
|
||||
fp = [sp++];
|
||||
|
||||
( R7 : 0, P5 : 0) = [ SP ++ ];
|
||||
SYSCFG = [sp++];
|
||||
|
||||
/* Restore Core MMRs */
|
||||
|
||||
PM_POP(TBUFCTL)
|
||||
PM_POP(TCOUNT)
|
||||
PM_POP(TSCALE)
|
||||
PM_POP(TPERIOD)
|
||||
PM_POP(TCNTL)
|
||||
PM_POP(IPRIO)
|
||||
PM_POP(ILAT)
|
||||
PM_POP(IMASK)
|
||||
PM_POP(EVT15)
|
||||
PM_POP(EVT14)
|
||||
PM_POP(EVT13)
|
||||
PM_POP(EVT12)
|
||||
PM_POP(EVT11)
|
||||
PM_POP(EVT10)
|
||||
PM_POP(EVT9)
|
||||
PM_POP(EVT8)
|
||||
PM_POP(EVT7)
|
||||
PM_POP(EVT6)
|
||||
PM_POP(EVT5)
|
||||
PM_POP(EVT4)
|
||||
PM_POP(EVT3)
|
||||
PM_POP(EVT2)
|
||||
PM_POP(EVT1)
|
||||
PM_POP(EVT0)
|
||||
PM_POP(ICPLB_DATA15)
|
||||
PM_POP(ICPLB_DATA14)
|
||||
PM_POP(ICPLB_DATA13)
|
||||
PM_POP(ICPLB_DATA12)
|
||||
PM_POP(ICPLB_DATA11)
|
||||
PM_POP(ICPLB_DATA10)
|
||||
PM_POP(ICPLB_DATA9)
|
||||
PM_POP(ICPLB_DATA8)
|
||||
PM_POP(ICPLB_DATA7)
|
||||
PM_POP(ICPLB_DATA6)
|
||||
PM_POP(ICPLB_DATA5)
|
||||
PM_POP(ICPLB_DATA4)
|
||||
PM_POP(ICPLB_DATA3)
|
||||
PM_POP(ICPLB_DATA2)
|
||||
PM_POP(ICPLB_DATA1)
|
||||
PM_POP(ICPLB_DATA0)
|
||||
PM_POP(ICPLB_ADDR15)
|
||||
PM_POP(ICPLB_ADDR14)
|
||||
PM_POP(ICPLB_ADDR13)
|
||||
PM_POP(ICPLB_ADDR12)
|
||||
PM_POP(ICPLB_ADDR11)
|
||||
PM_POP(ICPLB_ADDR10)
|
||||
PM_POP(ICPLB_ADDR9)
|
||||
PM_POP(ICPLB_ADDR8)
|
||||
PM_POP(ICPLB_ADDR7)
|
||||
PM_POP(ICPLB_ADDR6)
|
||||
PM_POP(ICPLB_ADDR5)
|
||||
PM_POP(ICPLB_ADDR4)
|
||||
PM_POP(ICPLB_ADDR3)
|
||||
PM_POP(ICPLB_ADDR2)
|
||||
PM_POP(ICPLB_ADDR1)
|
||||
PM_POP(ICPLB_ADDR0)
|
||||
PM_POP(IMEM_CONTROL)
|
||||
PM_POP(DCPLB_DATA15)
|
||||
PM_POP(DCPLB_DATA14)
|
||||
PM_POP(DCPLB_DATA13)
|
||||
PM_POP(DCPLB_DATA12)
|
||||
PM_POP(DCPLB_DATA11)
|
||||
PM_POP(DCPLB_DATA10)
|
||||
PM_POP(DCPLB_DATA9)
|
||||
PM_POP(DCPLB_DATA8)
|
||||
PM_POP(DCPLB_DATA7)
|
||||
PM_POP(DCPLB_DATA6)
|
||||
PM_POP(DCPLB_DATA5)
|
||||
PM_POP(DCPLB_DATA4)
|
||||
PM_POP(DCPLB_DATA3)
|
||||
PM_POP(DCPLB_DATA2)
|
||||
PM_POP(DCPLB_DATA1)
|
||||
PM_POP(DCPLB_DATA0)
|
||||
PM_POP(DCPLB_ADDR15)
|
||||
PM_POP(DCPLB_ADDR14)
|
||||
PM_POP(DCPLB_ADDR13)
|
||||
PM_POP(DCPLB_ADDR12)
|
||||
PM_POP(DCPLB_ADDR11)
|
||||
PM_POP(DCPLB_ADDR10)
|
||||
PM_POP(DCPLB_ADDR9)
|
||||
PM_POP(DCPLB_ADDR8)
|
||||
PM_POP(DCPLB_ADDR7)
|
||||
PM_POP(DCPLB_ADDR6)
|
||||
PM_POP(DCPLB_ADDR5)
|
||||
PM_POP(DCPLB_ADDR4)
|
||||
PM_POP(DCPLB_ADDR3)
|
||||
PM_POP(DCPLB_ADDR2)
|
||||
PM_POP(DCPLB_ADDR1)
|
||||
PM_POP(DCPLB_ADDR0)
|
||||
PM_POP(DMEM_CONTROL)
|
||||
|
||||
/* Restore System MMRs */
|
||||
|
||||
P0.H = hi(PLL_CTL);
|
||||
P0.L = lo(PLL_CTL);
|
||||
PM_SYS_POP16(SYSCR)
|
||||
|
||||
#ifdef EBIU_FCTL
|
||||
PM_SYS_POP(EBIU_FCTL)
|
||||
PM_SYS_POP(EBIU_MODE)
|
||||
PM_SYS_POP(EBIU_MBSCTL)
|
||||
#endif
|
||||
PM_SYS_POP16(EBIU_AMGCTL)
|
||||
PM_SYS_POP(EBIU_AMBCTL1)
|
||||
PM_SYS_POP(EBIU_AMBCTL0)
|
||||
|
||||
#ifdef PINT0_ASSIGN
|
||||
PM_SYS_POP(PINT3_ASSIGN)
|
||||
PM_SYS_POP(PINT2_ASSIGN)
|
||||
PM_SYS_POP(PINT1_ASSIGN)
|
||||
PM_SYS_POP(PINT0_ASSIGN)
|
||||
#endif
|
||||
|
||||
#ifdef SICA_IWR1
|
||||
PM_SYS_POP(SICA_IWR1)
|
||||
#endif
|
||||
#ifdef SICA_IWR0
|
||||
PM_SYS_POP(SICA_IWR0)
|
||||
#endif
|
||||
#ifdef SIC_IWR2
|
||||
PM_SYS_POP(SIC_IWR2)
|
||||
#endif
|
||||
#ifdef SIC_IWR1
|
||||
PM_SYS_POP(SIC_IWR1)
|
||||
#endif
|
||||
#ifdef SIC_IWR0
|
||||
PM_SYS_POP(SIC_IWR0)
|
||||
#endif
|
||||
#ifdef SIC_IWR
|
||||
PM_SYS_POP(SIC_IWR)
|
||||
#endif
|
||||
|
||||
#ifdef SICA_IAR0
|
||||
PM_SYS_POP(SICA_IAR7)
|
||||
PM_SYS_POP(SICA_IAR6)
|
||||
PM_SYS_POP(SICA_IAR5)
|
||||
PM_SYS_POP(SICA_IAR4)
|
||||
PM_SYS_POP(SICA_IAR3)
|
||||
PM_SYS_POP(SICA_IAR2)
|
||||
PM_SYS_POP(SICA_IAR1)
|
||||
PM_SYS_POP(SICA_IAR0)
|
||||
#endif
|
||||
|
||||
#ifdef SIC_IAR8
|
||||
PM_SYS_POP(SIC_IAR11)
|
||||
PM_SYS_POP(SIC_IAR10)
|
||||
PM_SYS_POP(SIC_IAR9)
|
||||
PM_SYS_POP(SIC_IAR8)
|
||||
#endif
|
||||
#ifdef SIC_IAR7
|
||||
PM_SYS_POP(SIC_IAR7)
|
||||
#endif
|
||||
#ifdef SIC_IAR6
|
||||
PM_SYS_POP(SIC_IAR6)
|
||||
PM_SYS_POP(SIC_IAR5)
|
||||
PM_SYS_POP(SIC_IAR4)
|
||||
#endif
|
||||
#ifdef SIC_IAR3
|
||||
PM_SYS_POP(SIC_IAR3)
|
||||
#endif
|
||||
#ifdef SIC_IAR2
|
||||
PM_SYS_POP(SIC_IAR2)
|
||||
PM_SYS_POP(SIC_IAR1)
|
||||
PM_SYS_POP(SIC_IAR0)
|
||||
#endif
|
||||
#ifdef SICA_IMASK1
|
||||
PM_SYS_POP(SICA_IMASK1)
|
||||
#endif
|
||||
#ifdef SICA_IMASK0
|
||||
PM_SYS_POP(SICA_IMASK0)
|
||||
#endif
|
||||
#ifdef SIC_IMASK
|
||||
PM_SYS_POP(SIC_IMASK)
|
||||
#endif
|
||||
#ifdef SIC_IMASK2
|
||||
PM_SYS_POP(SIC_IMASK2)
|
||||
#endif
|
||||
#ifdef SIC_IMASK1
|
||||
PM_SYS_POP(SIC_IMASK1)
|
||||
#endif
|
||||
#ifdef SIC_IMASK0
|
||||
PM_SYS_POP(SIC_IMASK0)
|
||||
#endif
|
||||
|
||||
[--sp] = RETI; /* Clear Global Interrupt Disable */
|
||||
SP += 4;
|
||||
|
||||
RETS = [SP++];
|
||||
( R7:0, P5:0 ) = [SP++];
|
||||
RTS;
|
||||
|
|
|
|||
|
|
@ -38,8 +38,9 @@
|
|||
#include <linux/io.h>
|
||||
#include <linux/irq.h>
|
||||
|
||||
#include <asm/dpmc.h>
|
||||
#include <asm/gpio.h>
|
||||
#include <asm/dma.h>
|
||||
#include <asm/dpmc.h>
|
||||
|
||||
#ifdef CONFIG_PM_WAKEUP_GPIO_POLAR_H
|
||||
#define WAKEUP_TYPE PM_WAKE_HIGH
|
||||
|
|
@ -61,16 +62,17 @@
|
|||
#define WAKEUP_TYPE PM_WAKE_BOTH_EDGES
|
||||
#endif
|
||||
|
||||
|
||||
void bfin_pm_suspend_standby_enter(void)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
||||
#ifdef CONFIG_PM_WAKEUP_BY_GPIO
|
||||
gpio_pm_wakeup_request(CONFIG_PM_WAKEUP_GPIO_NUMBER, WAKEUP_TYPE);
|
||||
#endif
|
||||
|
||||
u32 flags;
|
||||
|
||||
local_irq_save(flags);
|
||||
bfin_pm_setup();
|
||||
bfin_pm_standby_setup();
|
||||
|
||||
#ifdef CONFIG_PM_BFIN_SLEEP_DEEPER
|
||||
sleep_deeper(bfin_sic_iwr[0], bfin_sic_iwr[1], bfin_sic_iwr[2]);
|
||||
|
|
@ -78,7 +80,7 @@ void bfin_pm_suspend_standby_enter(void)
|
|||
sleep_mode(bfin_sic_iwr[0], bfin_sic_iwr[1], bfin_sic_iwr[2]);
|
||||
#endif
|
||||
|
||||
bfin_pm_restore();
|
||||
bfin_pm_standby_restore();
|
||||
|
||||
#if defined(CONFIG_BF54x) || defined(CONFIG_BF52x) || defined(CONFIG_BF561)
|
||||
bfin_write_SIC_IWR0(IWR_ENABLE_ALL);
|
||||
|
|
@ -93,6 +95,195 @@ void bfin_pm_suspend_standby_enter(void)
|
|||
local_irq_restore(flags);
|
||||
}
|
||||
|
||||
int bf53x_suspend_l1_mem(unsigned char *memptr)
|
||||
{
|
||||
dma_memcpy(memptr, (const void *) L1_CODE_START, L1_CODE_LENGTH);
|
||||
dma_memcpy(memptr + L1_CODE_LENGTH, (const void *) L1_DATA_A_START,
|
||||
L1_DATA_A_LENGTH);
|
||||
dma_memcpy(memptr + L1_CODE_LENGTH + L1_DATA_A_LENGTH,
|
||||
(const void *) L1_DATA_B_START, L1_DATA_B_LENGTH);
|
||||
memcpy(memptr + L1_CODE_LENGTH + L1_DATA_A_LENGTH +
|
||||
L1_DATA_B_LENGTH, (const void *) L1_SCRATCH_START,
|
||||
L1_SCRATCH_LENGTH);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int bf53x_resume_l1_mem(unsigned char *memptr)
|
||||
{
|
||||
dma_memcpy((void *) L1_CODE_START, memptr, L1_CODE_LENGTH);
|
||||
dma_memcpy((void *) L1_DATA_A_START, memptr + L1_CODE_LENGTH,
|
||||
L1_DATA_A_LENGTH);
|
||||
dma_memcpy((void *) L1_DATA_B_START, memptr + L1_CODE_LENGTH +
|
||||
L1_DATA_A_LENGTH, L1_DATA_B_LENGTH);
|
||||
memcpy((void *) L1_SCRATCH_START, memptr + L1_CODE_LENGTH +
|
||||
L1_DATA_A_LENGTH + L1_DATA_B_LENGTH, L1_SCRATCH_LENGTH);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_BFIN_WB
|
||||
static void flushinv_all_dcache(void)
|
||||
{
|
||||
u32 way, bank, subbank, set;
|
||||
u32 status, addr;
|
||||
u32 dmem_ctl = bfin_read_DMEM_CONTROL();
|
||||
|
||||
for (bank = 0; bank < 2; ++bank) {
|
||||
if (!(dmem_ctl & (1 << (DMC1_P - bank))))
|
||||
continue;
|
||||
|
||||
for (way = 0; way < 2; ++way)
|
||||
for (subbank = 0; subbank < 4; ++subbank)
|
||||
for (set = 0; set < 64; ++set) {
|
||||
|
||||
bfin_write_DTEST_COMMAND(
|
||||
way << 26 |
|
||||
bank << 23 |
|
||||
subbank << 16 |
|
||||
set << 5
|
||||
);
|
||||
CSYNC();
|
||||
status = bfin_read_DTEST_DATA0();
|
||||
|
||||
/* only worry about valid/dirty entries */
|
||||
if ((status & 0x3) != 0x3)
|
||||
continue;
|
||||
|
||||
/* construct the address using the tag */
|
||||
addr = (status & 0xFFFFC800) | (subbank << 12) | (set << 5);
|
||||
|
||||
/* flush it */
|
||||
__asm__ __volatile__("FLUSHINV[%0];" : : "a"(addr));
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
static inline void dcache_disable(void)
|
||||
{
|
||||
#ifdef CONFIG_BFIN_DCACHE
|
||||
unsigned long ctrl;
|
||||
|
||||
#ifdef CONFIG_BFIN_WB
|
||||
flushinv_all_dcache();
|
||||
#endif
|
||||
SSYNC();
|
||||
ctrl = bfin_read_DMEM_CONTROL();
|
||||
ctrl &= ~ENDCPLB;
|
||||
bfin_write_DMEM_CONTROL(ctrl);
|
||||
SSYNC();
|
||||
#endif
|
||||
}
|
||||
|
||||
static inline void dcache_enable(void)
|
||||
{
|
||||
#ifdef CONFIG_BFIN_DCACHE
|
||||
unsigned long ctrl;
|
||||
SSYNC();
|
||||
ctrl = bfin_read_DMEM_CONTROL();
|
||||
ctrl |= ENDCPLB;
|
||||
bfin_write_DMEM_CONTROL(ctrl);
|
||||
SSYNC();
|
||||
#endif
|
||||
}
|
||||
|
||||
static inline void icache_disable(void)
|
||||
{
|
||||
#ifdef CONFIG_BFIN_ICACHE
|
||||
unsigned long ctrl;
|
||||
SSYNC();
|
||||
ctrl = bfin_read_IMEM_CONTROL();
|
||||
ctrl &= ~ENICPLB;
|
||||
bfin_write_IMEM_CONTROL(ctrl);
|
||||
SSYNC();
|
||||
#endif
|
||||
}
|
||||
|
||||
static inline void icache_enable(void)
|
||||
{
|
||||
#ifdef CONFIG_BFIN_ICACHE
|
||||
unsigned long ctrl;
|
||||
SSYNC();
|
||||
ctrl = bfin_read_IMEM_CONTROL();
|
||||
ctrl |= ENICPLB;
|
||||
bfin_write_IMEM_CONTROL(ctrl);
|
||||
SSYNC();
|
||||
#endif
|
||||
}
|
||||
|
||||
int bfin_pm_suspend_mem_enter(void)
|
||||
{
|
||||
unsigned long flags;
|
||||
int wakeup, ret;
|
||||
|
||||
unsigned char *memptr = kmalloc(L1_CODE_LENGTH + L1_DATA_A_LENGTH
|
||||
+ L1_DATA_B_LENGTH + L1_SCRATCH_LENGTH,
|
||||
GFP_KERNEL);
|
||||
|
||||
if (memptr == NULL) {
|
||||
panic("bf53x_suspend_l1_mem malloc failed");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
wakeup = bfin_read_VR_CTL() & ~FREQ;
|
||||
wakeup |= SCKELOW;
|
||||
|
||||
/* FIXME: merge this somehow with set_irq_wake */
|
||||
#ifdef CONFIG_PM_BFIN_WAKE_RTC
|
||||
wakeup |= WAKE;
|
||||
#endif
|
||||
#ifdef CONFIG_PM_BFIN_WAKE_PH6
|
||||
wakeup |= PHYWE;
|
||||
#endif
|
||||
#ifdef CONFIG_PM_BFIN_WAKE_CAN
|
||||
wakeup |= CANWE;
|
||||
#endif
|
||||
#ifdef CONFIG_PM_BFIN_WAKE_GP
|
||||
wakeup |= GPWE;
|
||||
#endif
|
||||
#ifdef CONFIG_PM_BFIN_WAKE_USB
|
||||
wakeup |= USBWE;
|
||||
#endif
|
||||
#ifdef CONFIG_PM_BFIN_WAKE_KEYPAD
|
||||
wakeup |= KPADWE;
|
||||
#endif
|
||||
#ifdef CONFIG_PM_BFIN_WAKE_ROTARY
|
||||
wakeup |= ROTWE;
|
||||
#endif
|
||||
|
||||
local_irq_save(flags);
|
||||
|
||||
ret = blackfin_dma_suspend();
|
||||
|
||||
if (ret) {
|
||||
local_irq_restore(flags);
|
||||
kfree(memptr);
|
||||
return ret;
|
||||
}
|
||||
|
||||
bfin_gpio_pm_hibernate_suspend();
|
||||
|
||||
dcache_disable();
|
||||
icache_disable();
|
||||
bf53x_suspend_l1_mem(memptr);
|
||||
|
||||
do_hibernate(wakeup); /* Goodbye */
|
||||
|
||||
bf53x_resume_l1_mem(memptr);
|
||||
|
||||
icache_enable();
|
||||
dcache_enable();
|
||||
|
||||
bfin_gpio_pm_hibernate_restore();
|
||||
blackfin_dma_resume();
|
||||
|
||||
local_irq_restore(flags);
|
||||
kfree(memptr);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* bfin_pm_valid - Tell the PM core that we only support the standby sleep
|
||||
* state
|
||||
|
|
@ -101,7 +292,24 @@ void bfin_pm_suspend_standby_enter(void)
|
|||
*/
|
||||
static int bfin_pm_valid(suspend_state_t state)
|
||||
{
|
||||
return (state == PM_SUSPEND_STANDBY);
|
||||
return (state == PM_SUSPEND_STANDBY
|
||||
#ifndef BF533_FAMILY
|
||||
/*
|
||||
* On BF533/2/1:
|
||||
* If we enter Hibernate the SCKE Pin is driven Low,
|
||||
* so that the SDRAM enters Self Refresh Mode.
|
||||
* However when the reset sequence that follows hibernate
|
||||
* state is executed, SCKE is driven High, taking the
|
||||
* SDRAM out of Self Refresh.
|
||||
*
|
||||
* If you reconfigure and access the SDRAM "very quickly",
|
||||
* you are likely to avoid errors, otherwise the SDRAM
|
||||
* start losing its contents.
|
||||
* An external HW workaround is possible using logic gates.
|
||||
*/
|
||||
|| state == PM_SUSPEND_MEM
|
||||
#endif
|
||||
);
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -115,10 +323,9 @@ static int bfin_pm_enter(suspend_state_t state)
|
|||
case PM_SUSPEND_STANDBY:
|
||||
bfin_pm_suspend_standby_enter();
|
||||
break;
|
||||
|
||||
case PM_SUSPEND_MEM:
|
||||
return -ENOTSUPP;
|
||||
|
||||
bfin_pm_suspend_mem_enter();
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -144,8 +144,16 @@ struct dma_channel {
|
|||
void *data;
|
||||
unsigned int dma_enable_flag;
|
||||
unsigned int loopback_flag;
|
||||
#ifdef CONFIG_PM
|
||||
unsigned short saved_peripheral_map;
|
||||
#endif
|
||||
};
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
int blackfin_dma_suspend(void);
|
||||
void blackfin_dma_resume(void);
|
||||
#endif
|
||||
|
||||
/*******************************************************************************
|
||||
* DMA API's
|
||||
*******************************************************************************/
|
||||
|
|
|
|||
|
|
@ -7,63 +7,18 @@
|
|||
#ifndef _BLACKFIN_DPMC_H_
|
||||
#define _BLACKFIN_DPMC_H_
|
||||
|
||||
#define SLEEP_MODE 1
|
||||
#define DEEP_SLEEP_MODE 2
|
||||
#define ACTIVE_PLL_DISABLED 3
|
||||
#define FULLON_MODE 4
|
||||
#define ACTIVE_PLL_ENABLED 5
|
||||
#define HIBERNATE_MODE 6
|
||||
|
||||
#define IOCTL_FULL_ON_MODE _IO('s', 0xA0)
|
||||
#define IOCTL_ACTIVE_MODE _IO('s', 0xA1)
|
||||
#define IOCTL_SLEEP_MODE _IO('s', 0xA2)
|
||||
#define IOCTL_DEEP_SLEEP_MODE _IO('s', 0xA3)
|
||||
#define IOCTL_HIBERNATE_MODE _IO('s', 0xA4)
|
||||
#define IOCTL_CHANGE_FREQUENCY _IOW('s', 0xA5, unsigned long)
|
||||
#define IOCTL_CHANGE_VOLTAGE _IOW('s', 0xA6, unsigned long)
|
||||
#define IOCTL_SET_CCLK _IOW('s', 0xA7, unsigned long)
|
||||
#define IOCTL_SET_SCLK _IOW('s', 0xA8, unsigned long)
|
||||
#define IOCTL_GET_PLLSTATUS _IOW('s', 0xA9, unsigned long)
|
||||
#define IOCTL_GET_CORECLOCK _IOW('s', 0xAA, unsigned long)
|
||||
#define IOCTL_GET_SYSTEMCLOCK _IOW('s', 0xAB, unsigned long)
|
||||
#define IOCTL_GET_VCO _IOW('s', 0xAC, unsigned long)
|
||||
#define IOCTL_DISABLE_WDOG_TIMER _IO('s', 0xAD)
|
||||
#define IOCTL_UNMASK_WDOG_WAKEUP_EVENT _IO('s',0xAE)
|
||||
#define IOCTL_PROGRAM_WDOG_TIMER _IOW('s',0xAF,unsigned long)
|
||||
#define IOCTL_CLEAR_WDOG_WAKEUP_EVENT _IO('s',0xB0)
|
||||
#define IOCTL_SLEEP_DEEPER_MODE _IO('s',0xB1)
|
||||
|
||||
#define DPMC_MINOR 254
|
||||
|
||||
#define ON 0
|
||||
#define OFF 1
|
||||
|
||||
#ifdef __KERNEL__
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
unsigned long calc_volt(void);
|
||||
int calc_vlev(int vlt);
|
||||
unsigned long change_voltage(unsigned long volt);
|
||||
int calc_msel(int vco_hz);
|
||||
unsigned long change_frequency(unsigned long vco_mhz);
|
||||
int set_pll_div(unsigned short sel, unsigned char flag);
|
||||
int get_vco(void);
|
||||
unsigned long change_system_clock(unsigned long clock);
|
||||
unsigned long change_core_clock(unsigned long clock);
|
||||
unsigned long get_pll_status(void);
|
||||
void change_baud(int baud);
|
||||
void fullon_mode(void);
|
||||
void active_mode(void);
|
||||
void sleep_mode(u32 sic_iwr0, u32 sic_iwr1, u32 sic_iwr2);
|
||||
void deep_sleep(u32 sic_iwr0, u32 sic_iwr1, u32 sic_iwr2);
|
||||
void hibernate_mode(u32 sic_iwr0, u32 sic_iwr1, u32 sic_iwr2);
|
||||
void sleep_deeper(u32 sic_iwr0, u32 sic_iwr1, u32 sic_iwr2);
|
||||
void program_wdog_timer(unsigned long);
|
||||
void unmask_wdog_wakeup_evt(void);
|
||||
void clear_wdog_wakeup_evt(void);
|
||||
void disable_wdog_timer(void);
|
||||
void do_hibernate(int wakeup);
|
||||
void set_dram_srfs(void);
|
||||
void unset_dram_srfs(void);
|
||||
|
||||
extern unsigned long get_cclk(void);
|
||||
extern unsigned long get_sclk(void);
|
||||
#define VRPAIR(vlev, freq) (((vlev) << 16) | ((freq) >> 16))
|
||||
|
||||
struct bfin_dpmc_platform_data {
|
||||
const unsigned int *tuple_tab;
|
||||
|
|
@ -71,8 +26,33 @@ struct bfin_dpmc_platform_data {
|
|||
unsigned short vr_settling_time; /* in us */
|
||||
};
|
||||
|
||||
#define VRPAIR(vlev, freq) (((vlev) << 16) | ((freq) >> 16))
|
||||
#else
|
||||
|
||||
#define PM_PUSH(x) \
|
||||
R0 = [P0 + (x - SRAM_BASE_ADDRESS)];\
|
||||
[--SP] = R0;\
|
||||
|
||||
#define PM_POP(x) \
|
||||
R0 = [SP++];\
|
||||
[P0 + (x - SRAM_BASE_ADDRESS)] = R0;\
|
||||
|
||||
#define PM_SYS_PUSH(x) \
|
||||
R0 = [P0 + (x - PLL_CTL)];\
|
||||
[--SP] = R0;\
|
||||
|
||||
#define PM_SYS_POP(x) \
|
||||
R0 = [SP++];\
|
||||
[P0 + (x - PLL_CTL)] = R0;\
|
||||
|
||||
#define PM_SYS_PUSH16(x) \
|
||||
R0 = w[P0 + (x - PLL_CTL)];\
|
||||
[--SP] = R0;\
|
||||
|
||||
#define PM_SYS_POP16(x) \
|
||||
R0 = [SP++];\
|
||||
w[P0 + (x - PLL_CTL)] = R0;\
|
||||
|
||||
#endif
|
||||
#endif /* __KERNEL__ */
|
||||
|
||||
#endif /*_BLACKFIN_DPMC_H_*/
|
||||
|
|
|
|||
|
|
@ -376,8 +376,12 @@ struct gpio_port_t {
|
|||
#endif
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
unsigned int bfin_pm_setup(void);
|
||||
void bfin_pm_restore(void);
|
||||
|
||||
unsigned int bfin_pm_standby_setup(void);
|
||||
void bfin_pm_standby_restore(void);
|
||||
|
||||
void bfin_gpio_pm_hibernate_restore(void);
|
||||
void bfin_gpio_pm_hibernate_suspend(void);
|
||||
|
||||
#ifndef CONFIG_BF54x
|
||||
#define PM_WAKE_RISING 0x1
|
||||
|
|
@ -392,17 +396,8 @@ void gpio_pm_wakeup_free(unsigned gpio);
|
|||
|
||||
struct gpio_port_s {
|
||||
unsigned short data;
|
||||
unsigned short data_clear;
|
||||
unsigned short data_set;
|
||||
unsigned short toggle;
|
||||
unsigned short maska;
|
||||
unsigned short maska_clear;
|
||||
unsigned short maska_set;
|
||||
unsigned short maska_toggle;
|
||||
unsigned short maskb;
|
||||
unsigned short maskb_clear;
|
||||
unsigned short maskb_set;
|
||||
unsigned short maskb_toggle;
|
||||
unsigned short dir;
|
||||
unsigned short polar;
|
||||
unsigned short edge;
|
||||
|
|
@ -411,10 +406,10 @@ struct gpio_port_s {
|
|||
|
||||
unsigned short fer;
|
||||
unsigned short reserved;
|
||||
unsigned short mux;
|
||||
};
|
||||
#endif /*CONFIG_BF54x*/
|
||||
#endif /*CONFIG_PM*/
|
||||
|
||||
/***********************************************************
|
||||
*
|
||||
* FUNCTIONS: Blackfin GPIO Driver
|
||||
|
|
|
|||
|
|
@ -209,3 +209,11 @@ struct gpio_port_t {
|
|||
unsigned short dummy7;
|
||||
unsigned int port_mux;
|
||||
};
|
||||
|
||||
struct gpio_port_s {
|
||||
unsigned short fer;
|
||||
unsigned short data;
|
||||
unsigned short dir;
|
||||
unsigned short inen;
|
||||
unsigned int mux;
|
||||
};
|
||||
|
|
|
|||
Loading…
Reference in a new issue