diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/boot/dts/mpc8610_hpcd.dts | 26 | ||||
| -rw-r--r-- | arch/powerpc/platforms/86xx/mpc8610_hpcd.c | 48 |
2 files changed, 70 insertions, 4 deletions
diff --git a/arch/powerpc/boot/dts/mpc8610_hpcd.dts b/arch/powerpc/boot/dts/mpc8610_hpcd.dts index f468d21..9535ce6 100644 --- a/arch/powerpc/boot/dts/mpc8610_hpcd.dts +++ b/arch/powerpc/boot/dts/mpc8610_hpcd.dts @@ -35,6 +35,8 @@ i-cache-line-size = <32>; d-cache-size = <32768>; // L1 i-cache-size = <32768>; // L1 + sleep = <&pmc 0x00008000 0 // core + &pmc 0x00004000 0>; // timebase timebase-frequency = <0>; // From uboot bus-frequency = <0>; // From uboot clock-frequency = <0>; // From uboot @@ -60,6 +62,7 @@ 5 0 0xe8480000 0x00008000 6 0 0xe84c0000 0x00008000 3 0 0xe8000000 0x00000020>; + sleep = <&pmc 0x08000000 0>; flash@0,0 { compatible = "cfi-flash"; @@ -105,6 +108,8 @@ compatible = "fsl,fpga-pixis"; reg = <3 0 0x20>; ranges = <0 3 0 0x20>; + interrupt-parent = <&mpic>; + interrupts = <8 8>; sdcsr_pio: gpio-controller@a { #gpio-cells = <2>; @@ -163,6 +168,7 @@ reg = <0x3100 0x100>; interrupts = <43 2>; interrupt-parent = <&mpic>; + sleep = <&pmc 0x00000004 0>; dfsrr; }; @@ -174,6 +180,7 @@ clock-frequency = <0>; interrupts = <42 2>; interrupt-parent = <&mpic>; + sleep = <&pmc 0x00000002 0>; }; serial1: serial@4600 { @@ -184,6 +191,7 @@ clock-frequency = <0>; interrupts = <42 2>; interrupt-parent = <&mpic>; + sleep = <&pmc 0x00000008 0>; }; spi@7000 { @@ -196,6 +204,7 @@ interrupt-parent = <&mpic>; mode = "cpu"; gpios = <&sdcsr_pio 7 0>; + sleep = <&pmc 0x00000800 0>; mmc-slot@0 { compatible = "fsl,mpc8610hpcd-mmc-slot", @@ -213,6 +222,7 @@ reg = <0x2c000 100>; interrupts = <72 2>; interrupt-parent = <&mpic>; + sleep = <&pmc 0x04000000 0>; }; mpic: interrupt-controller@40000 { @@ -241,9 +251,18 @@ }; global-utilities@e0000 { + #address-cells = <1>; + #size-cells = <1>; compatible = "fsl,mpc8610-guts"; reg = <0xe0000 0x1000>; + ranges = <0 0xe0000 0x1000>; fsl,has-rstcr; + + pmc: power@70 { + compatible = "fsl,mpc8610-pmc", + "fsl,mpc8641d-pmc"; + reg = <0x70 0x20>; + }; }; wdt@e4000 { @@ -262,6 +281,7 @@ fsl,playback-dma = <&dma00>; fsl,capture-dma = <&dma01>; fsl,fifo-depth = <8>; + sleep = <&pmc 0 0x08000000>; }; ssi@16100 { @@ -271,6 +291,7 @@ interrupt-parent = <&mpic>; interrupts = <63 2>; fsl,fifo-depth = <8>; + sleep = <&pmc 0 0x04000000>; }; dma@21300 { @@ -280,6 +301,7 @@ cell-index = <0>; reg = <0x21300 0x4>; /* DMA general status register */ ranges = <0x0 0x21100 0x200>; + sleep = <&pmc 0x00000400 0>; dma00: dma-channel@0 { compatible = "fsl,mpc8610-dma-channel", @@ -322,6 +344,7 @@ cell-index = <1>; reg = <0xc300 0x4>; /* DMA general status register */ ranges = <0x0 0xc100 0x200>; + sleep = <&pmc 0x00000200 0>; dma-channel@0 { compatible = "fsl,mpc8610-dma-channel", @@ -369,6 +392,7 @@ bus-range = <0 0>; ranges = <0x02000000 0x0 0x80000000 0x80000000 0x0 0x10000000 0x01000000 0x0 0x00000000 0xe1000000 0x0 0x00100000>; + sleep = <&pmc 0x80000000 0>; clock-frequency = <33333333>; interrupt-parent = <&mpic>; interrupts = <24 2>; @@ -398,6 +422,7 @@ bus-range = <1 3>; ranges = <0x02000000 0x0 0xa0000000 0xa0000000 0x0 0x10000000 0x01000000 0x0 0x00000000 0xe3000000 0x0 0x00100000>; + sleep = <&pmc 0x40000000 0>; clock-frequency = <33333333>; interrupt-parent = <&mpic>; interrupts = <26 2>; @@ -474,6 +499,7 @@ 0x0000 0 0 4 &mpic 7 1>; interrupt-parent = <&mpic>; interrupts = <25 2>; + sleep = <&pmc 0x20000000 0>; clock-frequency = <33333333>; }; }; diff --git a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c b/arch/powerpc/platforms/86xx/mpc8610_hpcd.c index 627908a..5abe137 100644 --- a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c +++ b/arch/powerpc/platforms/86xx/mpc8610_hpcd.c @@ -19,6 +19,7 @@ #include <linux/stddef.h> #include <linux/kernel.h> #include <linux/pci.h> +#include <linux/interrupt.h> #include <linux/kdev_t.h> #include <linux/delay.h> #include <linux/seq_file.h> @@ -41,10 +42,46 @@ #include "mpc86xx.h" +static struct device_node *pixis_node; static unsigned char *pixis_bdcfg0, *pixis_arch; +#ifdef CONFIG_SUSPEND +static irqreturn_t mpc8610_sw9_irq(int irq, void *data) +{ + pr_debug("%s: PIXIS' event (sw9/wakeup) IRQ handled\n", __func__); + return IRQ_HANDLED; +} + +static void __init mpc8610_suspend_init(void) +{ + int irq; + int ret; + + if (!pixis_node) + return; + + irq = irq_of_parse_and_map(pixis_node, 0); + if (!irq) { + pr_err("%s: can't map pixis event IRQ.\n", __func__); + return; + } + + ret = request_irq(irq, mpc8610_sw9_irq, 0, "sw9/wakeup", NULL); + if (ret) { + pr_err("%s: can't request pixis event IRQ: %d\n", + __func__, ret); + irq_dispose_mapping(irq); + } + + enable_irq_wake(irq); +} +#else +static inline void mpc8610_suspend_init(void) { } +#endif /* CONFIG_SUSPEND */ + static struct of_device_id __initdata mpc8610_ids[] = { { .compatible = "fsl,mpc8610-immr", }, + { .compatible = "fsl,mpc8610-guts", }, { .compatible = "simple-bus", }, { .compatible = "gianfar", }, {} @@ -55,6 +92,9 @@ static int __init mpc8610_declare_of_platform_devices(void) /* Firstly, register PIXIS GPIOs. */ simple_gpiochip_init("fsl,fpga-pixis-gpio-bank"); + /* Enable wakeup on PIXIS' event IRQ. */ + mpc8610_suspend_init(); + /* Without this call, the SSI device driver won't get probed. */ of_platform_bus_probe(NULL, mpc8610_ids, NULL); @@ -250,10 +290,10 @@ static void __init mpc86xx_hpcd_setup_arch(void) diu_ops.set_sysfs_monitor_port = mpc8610hpcd_set_sysfs_monitor_port; #endif - np = of_find_compatible_node(NULL, NULL, "fsl,fpga-pixis"); - if (np) { - of_address_to_resource(np, 0, &r); - of_node_put(np); + pixis_node = of_find_compatible_node(NULL, NULL, "fsl,fpga-pixis"); + if (pixis_node) { + of_address_to_resource(pixis_node, 0, &r); + of_node_put(pixis_node); pixis = ioremap(r.start, 32); if (!pixis) { printk(KERN_ERR "Err: can't map FPGA cfg register!\n"); |