diff options
author | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-11 21:28:59 -0500 |
---|---|---|
committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-11 21:28:59 -0500 |
commit | cd39301a68f9604854f3543117b01dc73cbe193f (patch) | |
tree | 0be77134407d73aece97050151d80ed4b07b23bc /arch | |
parent | 13d7d84e078f49f08b657a3fba0d7a0b7b44ba65 (diff) | |
parent | 3fc0eb47aa96b1d9230ff85b722c45c3b9e83d14 (diff) |
Merge branch 'for-linus' of git://www.atmel.no/~hskinnemoen/linux/kernel/avr32
* 'for-linus' of git://www.atmel.no/~hskinnemoen/linux/kernel/avr32:
[AVR32] Add missing #include <linux/param.h> to delay.c
[AVR32] Pass dev parameter to dma_cache_sync()
[AVR32] Implement intc_get_pending()
[AVR32] Don't include <asm/delay.h>
[AVR32] Put the chip in "stop" mode when halting the system
[AVR32] Set flow handler for external interrupts
[AVR32] Remove unused file
[AVR32] Remove mii_phy_addr and eth_addr from eth_platform_data
[AVR32] Move ethernet tag parsing to board-specific code
[AVR32] Add macb1 platform_device
[AVR32] Portmux API update
Diffstat (limited to 'arch')
-rw-r--r-- | arch/avr32/boards/atstk1000/atstk1002.c | 76 | ||||
-rw-r--r-- | arch/avr32/kernel/avr32_ksyms.c | 2 | ||||
-rw-r--r-- | arch/avr32/kernel/process.c | 7 | ||||
-rw-r--r-- | arch/avr32/kernel/setup.c | 24 | ||||
-rw-r--r-- | arch/avr32/lib/delay.c | 2 | ||||
-rw-r--r-- | arch/avr32/mach-at32ap/at32ap7000.c | 182 | ||||
-rw-r--r-- | arch/avr32/mach-at32ap/extint.c | 22 | ||||
-rw-r--r-- | arch/avr32/mach-at32ap/intc.c | 4 | ||||
-rw-r--r-- | arch/avr32/mach-at32ap/pio.c | 85 | ||||
-rw-r--r-- | arch/avr32/mach-at32ap/sm.c | 289 |
10 files changed, 287 insertions, 406 deletions
diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c index cced73c58115..32b361f31c2c 100644 --- a/arch/avr32/boards/atstk1000/atstk1002.c +++ b/arch/avr32/boards/atstk1000/atstk1002.c | |||
@@ -7,20 +7,83 @@ | |||
7 | * it under the terms of the GNU General Public License version 2 as | 7 | * it under the terms of the GNU General Public License version 2 as |
8 | * published by the Free Software Foundation. | 8 | * published by the Free Software Foundation. |
9 | */ | 9 | */ |
10 | #include <linux/clk.h> | ||
11 | #include <linux/etherdevice.h> | ||
10 | #include <linux/init.h> | 12 | #include <linux/init.h> |
13 | #include <linux/kernel.h> | ||
14 | #include <linux/platform_device.h> | ||
15 | #include <linux/string.h> | ||
16 | #include <linux/types.h> | ||
11 | 17 | ||
18 | #include <asm/io.h> | ||
19 | #include <asm/setup.h> | ||
12 | #include <asm/arch/board.h> | 20 | #include <asm/arch/board.h> |
13 | #include <asm/arch/init.h> | 21 | #include <asm/arch/init.h> |
14 | 22 | ||
15 | struct eth_platform_data __initdata eth0_data = { | 23 | struct eth_addr { |
16 | .valid = 1, | 24 | u8 addr[6]; |
17 | .mii_phy_addr = 0x10, | ||
18 | .is_rmii = 0, | ||
19 | .hw_addr = { 0x6a, 0x87, 0x71, 0x14, 0xcd, 0xcb }, | ||
20 | }; | 25 | }; |
21 | 26 | ||
27 | static struct eth_addr __initdata hw_addr[2]; | ||
28 | |||
29 | static struct eth_platform_data __initdata eth_data[2]; | ||
22 | extern struct lcdc_platform_data atstk1000_fb0_data; | 30 | extern struct lcdc_platform_data atstk1000_fb0_data; |
23 | 31 | ||
32 | /* | ||
33 | * The next two functions should go away as the boot loader is | ||
34 | * supposed to initialize the macb address registers with a valid | ||
35 | * ethernet address. But we need to keep it around for a while until | ||
36 | * we can be reasonably sure the boot loader does this. | ||
37 | * | ||
38 | * The phy_id is ignored as the driver will probe for it. | ||
39 | */ | ||
40 | static int __init parse_tag_ethernet(struct tag *tag) | ||
41 | { | ||
42 | int i; | ||
43 | |||
44 | i = tag->u.ethernet.mac_index; | ||
45 | if (i < ARRAY_SIZE(hw_addr)) | ||
46 | memcpy(hw_addr[i].addr, tag->u.ethernet.hw_address, | ||
47 | sizeof(hw_addr[i].addr)); | ||
48 | |||
49 | return 0; | ||
50 | } | ||
51 | __tagtable(ATAG_ETHERNET, parse_tag_ethernet); | ||
52 | |||
53 | static void __init set_hw_addr(struct platform_device *pdev) | ||
54 | { | ||
55 | struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | ||
56 | const u8 *addr; | ||
57 | void __iomem *regs; | ||
58 | struct clk *pclk; | ||
59 | |||
60 | if (!res) | ||
61 | return; | ||
62 | if (pdev->id >= ARRAY_SIZE(hw_addr)) | ||
63 | return; | ||
64 | |||
65 | addr = hw_addr[pdev->id].addr; | ||
66 | if (!is_valid_ether_addr(addr)) | ||
67 | return; | ||
68 | |||
69 | /* | ||
70 | * Since this is board-specific code, we'll cheat and use the | ||
71 | * physical address directly as we happen to know that it's | ||
72 | * the same as the virtual address. | ||
73 | */ | ||
74 | regs = (void __iomem __force *)res->start; | ||
75 | pclk = clk_get(&pdev->dev, "pclk"); | ||
76 | if (!pclk) | ||
77 | return; | ||
78 | |||
79 | clk_enable(pclk); | ||
80 | __raw_writel((addr[3] << 24) | (addr[2] << 16) | ||
81 | | (addr[1] << 8) | addr[0], regs + 0x98); | ||
82 | __raw_writel((addr[5] << 8) | addr[4], regs + 0x9c); | ||
83 | clk_disable(pclk); | ||
84 | clk_put(pclk); | ||
85 | } | ||
86 | |||
24 | void __init setup_board(void) | 87 | void __init setup_board(void) |
25 | { | 88 | { |
26 | at32_map_usart(1, 0); /* /dev/ttyS0 */ | 89 | at32_map_usart(1, 0); /* /dev/ttyS0 */ |
@@ -38,7 +101,8 @@ static int __init atstk1002_init(void) | |||
38 | at32_add_device_usart(1); | 101 | at32_add_device_usart(1); |
39 | at32_add_device_usart(2); | 102 | at32_add_device_usart(2); |
40 | 103 | ||
41 | at32_add_device_eth(0, ð0_data); | 104 | set_hw_addr(at32_add_device_eth(0, ð_data[0])); |
105 | |||
42 | at32_add_device_spi(0); | 106 | at32_add_device_spi(0); |
43 | at32_add_device_lcdc(0, &atstk1000_fb0_data); | 107 | at32_add_device_lcdc(0, &atstk1000_fb0_data); |
44 | 108 | ||
diff --git a/arch/avr32/kernel/avr32_ksyms.c b/arch/avr32/kernel/avr32_ksyms.c index 372e3f8b2417..7c4c76114bba 100644 --- a/arch/avr32/kernel/avr32_ksyms.c +++ b/arch/avr32/kernel/avr32_ksyms.c | |||
@@ -7,12 +7,12 @@ | |||
7 | * it under the terms of the GNU General Public License version 2 as | 7 | * it under the terms of the GNU General Public License version 2 as |
8 | * published by the Free Software Foundation. | 8 | * published by the Free Software Foundation. |
9 | */ | 9 | */ |
10 | #include <linux/delay.h> | ||
10 | #include <linux/io.h> | 11 | #include <linux/io.h> |
11 | #include <linux/module.h> | 12 | #include <linux/module.h> |
12 | 13 | ||
13 | #include <asm/checksum.h> | 14 | #include <asm/checksum.h> |
14 | #include <asm/uaccess.h> | 15 | #include <asm/uaccess.h> |
15 | #include <asm/delay.h> | ||
16 | 16 | ||
17 | /* | 17 | /* |
18 | * GCC functions | 18 | * GCC functions |
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c index 317dc50945f2..0b4325946a41 100644 --- a/arch/avr32/kernel/process.c +++ b/arch/avr32/kernel/process.c | |||
@@ -38,6 +38,13 @@ void cpu_idle(void) | |||
38 | 38 | ||
39 | void machine_halt(void) | 39 | void machine_halt(void) |
40 | { | 40 | { |
41 | /* | ||
42 | * Enter Stop mode. The 32 kHz oscillator will keep running so | ||
43 | * the RTC will keep the time properly and the system will | ||
44 | * boot quickly. | ||
45 | */ | ||
46 | asm volatile("sleep 3\n\t" | ||
47 | "sub pc, -2"); | ||
41 | } | 48 | } |
42 | 49 | ||
43 | void machine_power_off(void) | 50 | void machine_power_off(void) |
diff --git a/arch/avr32/kernel/setup.c b/arch/avr32/kernel/setup.c index ea2d1ffee478..a34211601008 100644 --- a/arch/avr32/kernel/setup.c +++ b/arch/avr32/kernel/setup.c | |||
@@ -229,30 +229,6 @@ static int __init parse_tag_rsvd_mem(struct tag *tag) | |||
229 | } | 229 | } |
230 | __tagtable(ATAG_RSVD_MEM, parse_tag_rsvd_mem); | 230 | __tagtable(ATAG_RSVD_MEM, parse_tag_rsvd_mem); |
231 | 231 | ||
232 | static int __init parse_tag_ethernet(struct tag *tag) | ||
233 | { | ||
234 | #if 0 | ||
235 | const struct platform_device *pdev; | ||
236 | |||
237 | /* | ||
238 | * We really need a bus type that supports "classes"...this | ||
239 | * will do for now (until we must handle other kinds of | ||
240 | * ethernet controllers) | ||
241 | */ | ||
242 | pdev = platform_get_device("macb", tag->u.ethernet.mac_index); | ||
243 | if (pdev && pdev->dev.platform_data) { | ||
244 | struct eth_platform_data *data = pdev->dev.platform_data; | ||
245 | |||
246 | data->valid = 1; | ||
247 | data->mii_phy_addr = tag->u.ethernet.mii_phy_addr; | ||
248 | memcpy(data->hw_addr, tag->u.ethernet.hw_address, | ||
249 | sizeof(data->hw_addr)); | ||
250 | } | ||
251 | #endif | ||
252 | return 0; | ||
253 | } | ||
254 | __tagtable(ATAG_ETHERNET, parse_tag_ethernet); | ||
255 | |||
256 | /* | 232 | /* |
257 | * Scan the tag table for this tag, and call its parse function. The | 233 | * Scan the tag table for this tag, and call its parse function. The |
258 | * tag table is built by the linker from all the __tagtable | 234 | * tag table is built by the linker from all the __tagtable |
diff --git a/arch/avr32/lib/delay.c b/arch/avr32/lib/delay.c index 462c8307b680..b3bc0b56e2c6 100644 --- a/arch/avr32/lib/delay.c +++ b/arch/avr32/lib/delay.c | |||
@@ -12,9 +12,9 @@ | |||
12 | 12 | ||
13 | #include <linux/delay.h> | 13 | #include <linux/delay.h> |
14 | #include <linux/module.h> | 14 | #include <linux/module.h> |
15 | #include <linux/param.h> | ||
15 | #include <linux/types.h> | 16 | #include <linux/types.h> |
16 | 17 | ||
17 | #include <asm/delay.h> | ||
18 | #include <asm/processor.h> | 18 | #include <asm/processor.h> |
19 | #include <asm/sysreg.h> | 19 | #include <asm/sysreg.h> |
20 | 20 | ||
diff --git a/arch/avr32/mach-at32ap/at32ap7000.c b/arch/avr32/mach-at32ap/at32ap7000.c index 7ff6ad8bab5f..48f4ef38c70e 100644 --- a/arch/avr32/mach-at32ap/at32ap7000.c +++ b/arch/avr32/mach-at32ap/at32ap7000.c | |||
@@ -11,6 +11,7 @@ | |||
11 | 11 | ||
12 | #include <asm/io.h> | 12 | #include <asm/io.h> |
13 | 13 | ||
14 | #include <asm/arch/at32ap7000.h> | ||
14 | #include <asm/arch/board.h> | 15 | #include <asm/arch/board.h> |
15 | #include <asm/arch/portmux.h> | 16 | #include <asm/arch/portmux.h> |
16 | #include <asm/arch/sm.h> | 17 | #include <asm/arch/sm.h> |
@@ -57,6 +58,9 @@ static struct platform_device _name##_id##_device = { \ | |||
57 | .num_resources = ARRAY_SIZE(_name##_id##_resource), \ | 58 | .num_resources = ARRAY_SIZE(_name##_id##_resource), \ |
58 | } | 59 | } |
59 | 60 | ||
61 | #define select_peripheral(pin, periph, flags) \ | ||
62 | at32_select_periph(GPIO_PIN_##pin, GPIO_##periph, flags) | ||
63 | |||
60 | #define DEV_CLK(_name, devname, bus, _index) \ | 64 | #define DEV_CLK(_name, devname, bus, _index) \ |
61 | static struct clk devname##_##_name = { \ | 65 | static struct clk devname##_##_name = { \ |
62 | .name = #_name, \ | 66 | .name = #_name, \ |
@@ -67,18 +71,6 @@ static struct clk devname##_##_name = { \ | |||
67 | .index = _index, \ | 71 | .index = _index, \ |
68 | } | 72 | } |
69 | 73 | ||
70 | enum { | ||
71 | PIOA, | ||
72 | PIOB, | ||
73 | PIOC, | ||
74 | PIOD, | ||
75 | }; | ||
76 | |||
77 | enum { | ||
78 | FUNC_A, | ||
79 | FUNC_B, | ||
80 | }; | ||
81 | |||
82 | unsigned long at32ap7000_osc_rates[3] = { | 74 | unsigned long at32ap7000_osc_rates[3] = { |
83 | [0] = 32768, | 75 | [0] = 32768, |
84 | /* FIXME: these are ATSTK1002-specific */ | 76 | /* FIXME: these are ATSTK1002-specific */ |
@@ -569,26 +561,26 @@ DEV_CLK(usart, atmel_usart3, pba, 6); | |||
569 | 561 | ||
570 | static inline void configure_usart0_pins(void) | 562 | static inline void configure_usart0_pins(void) |
571 | { | 563 | { |
572 | portmux_set_func(PIOA, 8, FUNC_B); /* RXD */ | 564 | select_peripheral(PA(8), PERIPH_B, 0); /* RXD */ |
573 | portmux_set_func(PIOA, 9, FUNC_B); /* TXD */ | 565 | select_peripheral(PA(9), PERIPH_B, 0); /* TXD */ |
574 | } | 566 | } |
575 | 567 | ||
576 | static inline void configure_usart1_pins(void) | 568 | static inline void configure_usart1_pins(void) |
577 | { | 569 | { |
578 | portmux_set_func(PIOA, 17, FUNC_A); /* RXD */ | 570 | select_peripheral(PA(17), PERIPH_A, 0); /* RXD */ |
579 | portmux_set_func(PIOA, 18, FUNC_A); /* TXD */ | 571 | select_peripheral(PA(18), PERIPH_A, 0); /* TXD */ |
580 | } | 572 | } |
581 | 573 | ||
582 | static inline void configure_usart2_pins(void) | 574 | static inline void configure_usart2_pins(void) |
583 | { | 575 | { |
584 | portmux_set_func(PIOB, 26, FUNC_B); /* RXD */ | 576 | select_peripheral(PB(26), PERIPH_B, 0); /* RXD */ |
585 | portmux_set_func(PIOB, 27, FUNC_B); /* TXD */ | 577 | select_peripheral(PB(27), PERIPH_B, 0); /* TXD */ |
586 | } | 578 | } |
587 | 579 | ||
588 | static inline void configure_usart3_pins(void) | 580 | static inline void configure_usart3_pins(void) |
589 | { | 581 | { |
590 | portmux_set_func(PIOB, 18, FUNC_B); /* RXD */ | 582 | select_peripheral(PB(18), PERIPH_B, 0); /* RXD */ |
591 | portmux_set_func(PIOB, 17, FUNC_B); /* TXD */ | 583 | select_peripheral(PB(17), PERIPH_B, 0); /* TXD */ |
592 | } | 584 | } |
593 | 585 | ||
594 | static struct platform_device *at32_usarts[4]; | 586 | static struct platform_device *at32_usarts[4]; |
@@ -654,6 +646,15 @@ DEFINE_DEV_DATA(macb, 0); | |||
654 | DEV_CLK(hclk, macb0, hsb, 8); | 646 | DEV_CLK(hclk, macb0, hsb, 8); |
655 | DEV_CLK(pclk, macb0, pbb, 6); | 647 | DEV_CLK(pclk, macb0, pbb, 6); |
656 | 648 | ||
649 | static struct eth_platform_data macb1_data; | ||
650 | static struct resource macb1_resource[] = { | ||
651 | PBMEM(0xfff01c00), | ||
652 | IRQ(26), | ||
653 | }; | ||
654 | DEFINE_DEV_DATA(macb, 1); | ||
655 | DEV_CLK(hclk, macb1, hsb, 9); | ||
656 | DEV_CLK(pclk, macb1, pbb, 7); | ||
657 | |||
657 | struct platform_device *__init | 658 | struct platform_device *__init |
658 | at32_add_device_eth(unsigned int id, struct eth_platform_data *data) | 659 | at32_add_device_eth(unsigned int id, struct eth_platform_data *data) |
659 | { | 660 | { |
@@ -663,27 +664,54 @@ at32_add_device_eth(unsigned int id, struct eth_platform_data *data) | |||
663 | case 0: | 664 | case 0: |
664 | pdev = &macb0_device; | 665 | pdev = &macb0_device; |
665 | 666 | ||
666 | portmux_set_func(PIOC, 3, FUNC_A); /* TXD0 */ | 667 | select_peripheral(PC(3), PERIPH_A, 0); /* TXD0 */ |
667 | portmux_set_func(PIOC, 4, FUNC_A); /* TXD1 */ | 668 | select_peripheral(PC(4), PERIPH_A, 0); /* TXD1 */ |
668 | portmux_set_func(PIOC, 7, FUNC_A); /* TXEN */ | 669 | select_peripheral(PC(7), PERIPH_A, 0); /* TXEN */ |
669 | portmux_set_func(PIOC, 8, FUNC_A); /* TXCK */ | 670 | select_peripheral(PC(8), PERIPH_A, 0); /* TXCK */ |
670 | portmux_set_func(PIOC, 9, FUNC_A); /* RXD0 */ | 671 | select_peripheral(PC(9), PERIPH_A, 0); /* RXD0 */ |
671 | portmux_set_func(PIOC, 10, FUNC_A); /* RXD1 */ | 672 | select_peripheral(PC(10), PERIPH_A, 0); /* RXD1 */ |
672 | portmux_set_func(PIOC, 13, FUNC_A); /* RXER */ | 673 | select_peripheral(PC(13), PERIPH_A, 0); /* RXER */ |
673 | portmux_set_func(PIOC, 15, FUNC_A); /* RXDV */ | 674 | select_peripheral(PC(15), PERIPH_A, 0); /* RXDV */ |
674 | portmux_set_func(PIOC, 16, FUNC_A); /* MDC */ | 675 | select_peripheral(PC(16), PERIPH_A, 0); /* MDC */ |
675 | portmux_set_func(PIOC, 17, FUNC_A); /* MDIO */ | 676 | select_peripheral(PC(17), PERIPH_A, 0); /* MDIO */ |
677 | |||
678 | if (!data->is_rmii) { | ||
679 | select_peripheral(PC(0), PERIPH_A, 0); /* COL */ | ||
680 | select_peripheral(PC(1), PERIPH_A, 0); /* CRS */ | ||
681 | select_peripheral(PC(2), PERIPH_A, 0); /* TXER */ | ||
682 | select_peripheral(PC(5), PERIPH_A, 0); /* TXD2 */ | ||
683 | select_peripheral(PC(6), PERIPH_A, 0); /* TXD3 */ | ||
684 | select_peripheral(PC(11), PERIPH_A, 0); /* RXD2 */ | ||
685 | select_peripheral(PC(12), PERIPH_A, 0); /* RXD3 */ | ||
686 | select_peripheral(PC(14), PERIPH_A, 0); /* RXCK */ | ||
687 | select_peripheral(PC(18), PERIPH_A, 0); /* SPD */ | ||
688 | } | ||
689 | break; | ||
690 | |||
691 | case 1: | ||
692 | pdev = &macb1_device; | ||
693 | |||
694 | select_peripheral(PD(13), PERIPH_B, 0); /* TXD0 */ | ||
695 | select_peripheral(PD(14), PERIPH_B, 0); /* TXD1 */ | ||
696 | select_peripheral(PD(11), PERIPH_B, 0); /* TXEN */ | ||
697 | select_peripheral(PD(12), PERIPH_B, 0); /* TXCK */ | ||
698 | select_peripheral(PD(10), PERIPH_B, 0); /* RXD0 */ | ||
699 | select_peripheral(PD(6), PERIPH_B, 0); /* RXD1 */ | ||
700 | select_peripheral(PD(5), PERIPH_B, 0); /* RXER */ | ||
701 | select_peripheral(PD(4), PERIPH_B, 0); /* RXDV */ | ||
702 | select_peripheral(PD(3), PERIPH_B, 0); /* MDC */ | ||
703 | select_peripheral(PD(2), PERIPH_B, 0); /* MDIO */ | ||
676 | 704 | ||
677 | if (!data->is_rmii) { | 705 | if (!data->is_rmii) { |
678 | portmux_set_func(PIOC, 0, FUNC_A); /* COL */ | 706 | select_peripheral(PC(19), PERIPH_B, 0); /* COL */ |
679 | portmux_set_func(PIOC, 1, FUNC_A); /* CRS */ | 707 | select_peripheral(PC(23), PERIPH_B, 0); /* CRS */ |
680 | portmux_set_func(PIOC, 2, FUNC_A); /* TXER */ | 708 | select_peripheral(PC(26), PERIPH_B, 0); /* TXER */ |
681 | portmux_set_func(PIOC, 5, FUNC_A); /* TXD2 */ | 709 | select_peripheral(PC(27), PERIPH_B, 0); /* TXD2 */ |
682 | portmux_set_func(PIOC, 6, FUNC_A); /* TXD3 */ | 710 | select_peripheral(PC(28), PERIPH_B, 0); /* TXD3 */ |
683 | portmux_set_func(PIOC, 11, FUNC_A); /* RXD2 */ | 711 | select_peripheral(PC(29), PERIPH_B, 0); /* RXD2 */ |
684 | portmux_set_func(PIOC, 12, FUNC_A); /* RXD3 */ | 712 | select_peripheral(PC(30), PERIPH_B, 0); /* RXD3 */ |
685 | portmux_set_func(PIOC, 14, FUNC_A); /* RXCK */ | 713 | select_peripheral(PC(24), PERIPH_B, 0); /* RXCK */ |
686 | portmux_set_func(PIOC, 18, FUNC_A); /* SPD */ | 714 | select_peripheral(PD(15), PERIPH_B, 0); /* SPD */ |
687 | } | 715 | } |
688 | break; | 716 | break; |
689 | 717 | ||
@@ -714,12 +742,12 @@ struct platform_device *__init at32_add_device_spi(unsigned int id) | |||
714 | switch (id) { | 742 | switch (id) { |
715 | case 0: | 743 | case 0: |
716 | pdev = &spi0_device; | 744 | pdev = &spi0_device; |
717 | portmux_set_func(PIOA, 0, FUNC_A); /* MISO */ | 745 | select_peripheral(PA(0), PERIPH_A, 0); /* MISO */ |
718 | portmux_set_func(PIOA, 1, FUNC_A); /* MOSI */ | 746 | select_peripheral(PA(1), PERIPH_A, 0); /* MOSI */ |
719 | portmux_set_func(PIOA, 2, FUNC_A); /* SCK */ | 747 | select_peripheral(PA(2), PERIPH_A, 0); /* SCK */ |
720 | portmux_set_func(PIOA, 3, FUNC_A); /* NPCS0 */ | 748 | select_peripheral(PA(3), PERIPH_A, 0); /* NPCS0 */ |
721 | portmux_set_func(PIOA, 4, FUNC_A); /* NPCS1 */ | 749 | select_peripheral(PA(4), PERIPH_A, 0); /* NPCS1 */ |
722 | portmux_set_func(PIOA, 5, FUNC_A); /* NPCS2 */ | 750 | select_peripheral(PA(5), PERIPH_A, 0); /* NPCS2 */ |
723 | break; | 751 | break; |
724 | 752 | ||
725 | default: | 753 | default: |
@@ -762,37 +790,37 @@ at32_add_device_lcdc(unsigned int id, struct lcdc_platform_data *data) | |||
762 | switch (id) { | 790 | switch (id) { |
763 | case 0: | 791 | case 0: |
764 | pdev = &lcdc0_device; | 792 | pdev = &lcdc0_device; |
765 | portmux_set_func(PIOC, 19, FUNC_A); /* CC */ | 793 | select_peripheral(PC(19), PERIPH_A, 0); /* CC */ |
766 | portmux_set_func(PIOC, 20, FUNC_A); /* HSYNC */ | 794 | select_peripheral(PC(20), PERIPH_A, 0); /* HSYNC */ |
767 | portmux_set_func(PIOC, 21, FUNC_A); /* PCLK */ | 795 | select_peripheral(PC(21), PERIPH_A, 0); /* PCLK */ |
768 | portmux_set_func(PIOC, 22, FUNC_A); /* VSYNC */ | 796 | select_peripheral(PC(22), PERIPH_A, 0); /* VSYNC */ |
769 | portmux_set_func(PIOC, 23, FUNC_A); /* DVAL */ | 797 | select_peripheral(PC(23), PERIPH_A, 0); /* DVAL */ |
770 | portmux_set_func(PIOC, 24, FUNC_A); /* MODE */ | 798 | select_peripheral(PC(24), PERIPH_A, 0); /* MODE */ |
771 | portmux_set_func(PIOC, 25, FUNC_A); /* PWR */ | 799 | select_peripheral(PC(25), PERIPH_A, 0); /* PWR */ |
772 | portmux_set_func(PIOC, 26, FUNC_A); /* DATA0 */ | 800 | select_peripheral(PC(26), PERIPH_A, 0); /* DATA0 */ |
773 | portmux_set_func(PIOC, 27, FUNC_A); /* DATA1 */ | 801 | select_peripheral(PC(27), PERIPH_A, 0); /* DATA1 */ |
774 | portmux_set_func(PIOC, 28, FUNC_A); /* DATA2 */ | 802 | select_peripheral(PC(28), PERIPH_A, 0); /* DATA2 */ |
775 | portmux_set_func(PIOC, 29, FUNC_A); /* DATA3 */ | 803 | select_peripheral(PC(29), PERIPH_A, 0); /* DATA3 */ |
776 | portmux_set_func(PIOC, 30, FUNC_A); /* DATA4 */ | 804 | select_peripheral(PC(30), PERIPH_A, 0); /* DATA4 */ |
777 | portmux_set_func(PIOC, 31, FUNC_A); /* DATA5 */ | 805 | select_peripheral(PC(31), PERIPH_A, 0); /* DATA5 */ |
778 | portmux_set_func(PIOD, 0, FUNC_A); /* DATA6 */ | 806 | select_peripheral(PD(0), PERIPH_A, 0); /* DATA6 */ |
779 | portmux_set_func(PIOD, 1, FUNC_A); /* DATA7 */ | 807 | select_peripheral(PD(1), PERIPH_A, 0); /* DATA7 */ |
780 | portmux_set_func(PIOD, 2, FUNC_A); /* DATA8 */ | 808 | select_peripheral(PD(2), PERIPH_A, 0); /* DATA8 */ |
781 | portmux_set_func(PIOD, 3, FUNC_A); /* DATA9 */ | 809 | select_peripheral(PD(3), PERIPH_A, 0); /* DATA9 */ |
782 | portmux_set_func(PIOD, 4, FUNC_A); /* DATA10 */ | 810 | select_peripheral(PD(4), PERIPH_A, 0); /* DATA10 */ |
783 | portmux_set_func(PIOD, 5, FUNC_A); /* DATA11 */ | 811 | select_peripheral(PD(5), PERIPH_A, 0); /* DATA11 */ |
784 | portmux_set_func(PIOD, 6, FUNC_A); /* DATA12 */ | 812 | select_peripheral(PD(6), PERIPH_A, 0); /* DATA12 */ |
785 | portmux_set_func(PIOD, 7, FUNC_A); /* DATA13 */ | 813 | select_peripheral(PD(7), PERIPH_A, 0); /* DATA13 */ |
786 | portmux_set_func(PIOD, 8, FUNC_A); /* DATA14 */ | 814 | select_peripheral(PD(8), PERIPH_A, 0); /* DATA14 */ |
787 | portmux_set_func(PIOD, 9, FUNC_A); /* DATA15 */ | 815 | select_peripheral(PD(9), PERIPH_A, 0); /* DATA15 */ |
788 | portmux_set_func(PIOD, 10, FUNC_A); /* DATA16 */ | 816 | select_peripheral(PD(10), PERIPH_A, 0); /* DATA16 */ |
789 | portmux_set_func(PIOD, 11, FUNC_A); /* DATA17 */ | 817 | select_peripheral(PD(11), PERIPH_A, 0); /* DATA17 */ |
790 | portmux_set_func(PIOD, 12, FUNC_A); /* DATA18 */ | 818 | select_peripheral(PD(12), PERIPH_A, 0); /* DATA18 */ |
791 | portmux_set_func(PIOD, 13, FUNC_A); /* DATA19 */ | 819 | select_peripheral(PD(13), PERIPH_A, 0); /* DATA19 */ |
792 | portmux_set_func(PIOD, 14, FUNC_A); /* DATA20 */ | 820 | select_peripheral(PD(14), PERIPH_A, 0); /* DATA20 */ |
793 | portmux_set_func(PIOD, 15, FUNC_A); /* DATA21 */ | 821 | select_peripheral(PD(15), PERIPH_A, 0); /* DATA21 */ |
794 | portmux_set_func(PIOD, 16, FUNC_A); /* DATA22 */ | 822 | select_peripheral(PD(16), PERIPH_A, 0); /* DATA22 */ |
795 | portmux_set_func(PIOD, 17, FUNC_A); /* DATA23 */ | 823 | select_peripheral(PD(17), PERIPH_A, 0); /* DATA23 */ |
796 | 824 | ||
797 | clk_set_parent(&lcdc0_pixclk, &pll0); | 825 | clk_set_parent(&lcdc0_pixclk, &pll0); |
798 | clk_set_rate(&lcdc0_pixclk, clk_get_rate(&pll0)); | 826 | clk_set_rate(&lcdc0_pixclk, clk_get_rate(&pll0)); |
@@ -838,6 +866,8 @@ struct clk *at32_clock_list[] = { | |||
838 | &atmel_usart3_usart, | 866 | &atmel_usart3_usart, |
839 | &macb0_hclk, | 867 | &macb0_hclk, |
840 | &macb0_pclk, | 868 | &macb0_pclk, |
869 | &macb1_hclk, | ||
870 | &macb1_pclk, | ||
841 | &spi0_mck, | 871 | &spi0_mck, |
842 | &lcdc0_hclk, | 872 | &lcdc0_hclk, |
843 | &lcdc0_pixclk, | 873 | &lcdc0_pixclk, |
diff --git a/arch/avr32/mach-at32ap/extint.c b/arch/avr32/mach-at32ap/extint.c index 4dff1f988900..b59272e81b9a 100644 --- a/arch/avr32/mach-at32ap/extint.c +++ b/arch/avr32/mach-at32ap/extint.c | |||
@@ -49,12 +49,25 @@ static void eim_unmask_irq(unsigned int irq) | |||
49 | static int eim_set_irq_type(unsigned int irq, unsigned int flow_type) | 49 | static int eim_set_irq_type(unsigned int irq, unsigned int flow_type) |
50 | { | 50 | { |
51 | struct at32_sm *sm = get_irq_chip_data(irq); | 51 | struct at32_sm *sm = get_irq_chip_data(irq); |
52 | struct irq_desc *desc; | ||
52 | unsigned int i = irq - sm->eim_first_irq; | 53 | unsigned int i = irq - sm->eim_first_irq; |
53 | u32 mode, edge, level; | 54 | u32 mode, edge, level; |
54 | unsigned long flags; | 55 | unsigned long flags; |
55 | int ret = 0; | 56 | int ret = 0; |
56 | 57 | ||
57 | flow_type &= IRQ_TYPE_SENSE_MASK; | 58 | if (flow_type == IRQ_TYPE_NONE) |
59 | flow_type = IRQ_TYPE_LEVEL_LOW; | ||
60 | |||
61 | desc = &irq_desc[irq]; | ||
62 | desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL); | ||
63 | desc->status |= flow_type & IRQ_TYPE_SENSE_MASK; | ||
64 | |||
65 | if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)) { | ||
66 | desc->status |= IRQ_LEVEL; | ||
67 | set_irq_handler(irq, handle_level_irq); | ||
68 | } else { | ||
69 | set_irq_handler(irq, handle_edge_irq); | ||
70 | } | ||
58 | 71 | ||
59 | spin_lock_irqsave(&sm->lock, flags); | 72 | spin_lock_irqsave(&sm->lock, flags); |
60 | 73 | ||
@@ -148,10 +161,15 @@ static int __init eim_init(void) | |||
148 | pattern = sm_readl(sm, EIM_MODE); | 161 | pattern = sm_readl(sm, EIM_MODE); |
149 | nr_irqs = fls(pattern); | 162 | nr_irqs = fls(pattern); |
150 | 163 | ||
164 | /* Trigger on falling edge unless overridden by driver */ | ||
165 | sm_writel(sm, EIM_MODE, 0UL); | ||
166 | sm_writel(sm, EIM_EDGE, 0UL); | ||
167 | |||
151 | sm->eim_chip = &eim_chip; | 168 | sm->eim_chip = &eim_chip; |
152 | 169 | ||
153 | for (i = 0; i < nr_irqs; i++) { | 170 | for (i = 0; i < nr_irqs; i++) { |
154 | set_irq_chip(sm->eim_first_irq + i, &eim_chip); | 171 | set_irq_chip_and_handler(sm->eim_first_irq + i, &eim_chip, |
172 | handle_edge_irq); | ||
155 | set_irq_chip_data(sm->eim_first_irq + i, sm); | 173 | set_irq_chip_data(sm->eim_first_irq + i, sm); |
156 | } | 174 | } |
157 | 175 | ||
diff --git a/arch/avr32/mach-at32ap/intc.c b/arch/avr32/mach-at32ap/intc.c index eb87a18ad7b2..dd5c009cf224 100644 --- a/arch/avr32/mach-at32ap/intc.c +++ b/arch/avr32/mach-at32ap/intc.c | |||
@@ -136,3 +136,7 @@ fail: | |||
136 | panic("Interrupt controller initialization failed!\n"); | 136 | panic("Interrupt controller initialization failed!\n"); |
137 | } | 137 | } |
138 | 138 | ||
139 | unsigned long intc_get_pending(int group) | ||
140 | { | ||
141 | return intc_readl(&intc0, INTREQ0 + 4 * group); | ||
142 | } | ||
diff --git a/arch/avr32/mach-at32ap/pio.c b/arch/avr32/mach-at32ap/pio.c index d3aabfca8598..f1280ed8ed6d 100644 --- a/arch/avr32/mach-at32ap/pio.c +++ b/arch/avr32/mach-at32ap/pio.c | |||
@@ -25,27 +25,98 @@ struct pio_device { | |||
25 | void __iomem *regs; | 25 | void __iomem *regs; |
26 | const struct platform_device *pdev; | 26 | const struct platform_device *pdev; |
27 | struct clk *clk; | 27 | struct clk *clk; |
28 | u32 alloc_mask; | 28 | u32 pinmux_mask; |
29 | char name[32]; | 29 | char name[32]; |
30 | }; | 30 | }; |
31 | 31 | ||
32 | static struct pio_device pio_dev[MAX_NR_PIO_DEVICES]; | 32 | static struct pio_device pio_dev[MAX_NR_PIO_DEVICES]; |
33 | 33 | ||
34 | void portmux_set_func(unsigned int portmux_id, unsigned int pin_id, | 34 | static struct pio_device *gpio_to_pio(unsigned int gpio) |
35 | unsigned int function_id) | ||
36 | { | 35 | { |
37 | struct pio_device *pio; | 36 | struct pio_device *pio; |
38 | u32 mask = 1 << pin_id; | 37 | unsigned int index; |
39 | 38 | ||
40 | BUG_ON(portmux_id >= MAX_NR_PIO_DEVICES); | 39 | index = gpio >> 5; |
40 | if (index >= MAX_NR_PIO_DEVICES) | ||
41 | return NULL; | ||
42 | pio = &pio_dev[index]; | ||
43 | if (!pio->regs) | ||
44 | return NULL; | ||
41 | 45 | ||
42 | pio = &pio_dev[portmux_id]; | 46 | return pio; |
47 | } | ||
48 | |||
49 | /* Pin multiplexing API */ | ||
50 | |||
51 | void __init at32_select_periph(unsigned int pin, unsigned int periph, | ||
52 | unsigned long flags) | ||
53 | { | ||
54 | struct pio_device *pio; | ||
55 | unsigned int pin_index = pin & 0x1f; | ||
56 | u32 mask = 1 << pin_index; | ||
57 | |||
58 | pio = gpio_to_pio(pin); | ||
59 | if (unlikely(!pio)) { | ||
60 | printk("pio: invalid pin %u\n", pin); | ||
61 | goto fail; | ||
62 | } | ||
43 | 63 | ||
44 | if (function_id) | 64 | if (unlikely(test_and_set_bit(pin_index, &pio->pinmux_mask))) { |
65 | printk("%s: pin %u is busy\n", pio->name, pin_index); | ||
66 | goto fail; | ||
67 | } | ||
68 | |||
69 | pio_writel(pio, PUER, mask); | ||
70 | if (periph) | ||
45 | pio_writel(pio, BSR, mask); | 71 | pio_writel(pio, BSR, mask); |
46 | else | 72 | else |
47 | pio_writel(pio, ASR, mask); | 73 | pio_writel(pio, ASR, mask); |
74 | |||
48 | pio_writel(pio, PDR, mask); | 75 | pio_writel(pio, PDR, mask); |
76 | if (!(flags & AT32_GPIOF_PULLUP)) | ||
77 | pio_writel(pio, PUDR, mask); | ||
78 | |||
79 | return; | ||
80 | |||
81 | fail: | ||
82 | dump_stack(); | ||
83 | } | ||
84 | |||
85 | void __init at32_select_gpio(unsigned int pin, unsigned long flags) | ||
86 | { | ||
87 | struct pio_device *pio; | ||
88 | unsigned int pin_index = pin & 0x1f; | ||
89 | u32 mask = 1 << pin_index; | ||
90 | |||
91 | pio = gpio_to_pio(pin); | ||
92 | if (unlikely(!pio)) { | ||
93 | printk("pio: invalid pin %u\n", pin); | ||
94 | goto fail; | ||
95 | } | ||
96 | |||
97 | if (unlikely(test_and_set_bit(pin_index, &pio->pinmux_mask))) { | ||
98 | printk("%s: pin %u is busy\n", pio->name, pin_index); | ||
99 | goto fail; | ||
100 | } | ||
101 | |||
102 | pio_writel(pio, PUER, mask); | ||
103 | if (flags & AT32_GPIOF_HIGH) | ||
104 | pio_writel(pio, SODR, mask); | ||
105 | else | ||
106 | pio_writel(pio, CODR, mask); | ||
107 | if (flags & AT32_GPIOF_OUTPUT) | ||
108 | pio_writel(pio, OER, mask); | ||
109 | else | ||
110 | pio_writel(pio, ODR, mask); | ||
111 | |||
112 | pio_writel(pio, PER, mask); | ||
113 | if (!(flags & AT32_GPIOF_PULLUP)) | ||
114 | pio_writel(pio, PUDR, mask); | ||
115 | |||
116 | return; | ||
117 | |||
118 | fail: | ||
119 | dump_stack(); | ||
49 | } | 120 | } |
50 | 121 | ||
51 | static int __init pio_probe(struct platform_device *pdev) | 122 | static int __init pio_probe(struct platform_device *pdev) |
diff --git a/arch/avr32/mach-at32ap/sm.c b/arch/avr32/mach-at32ap/sm.c deleted file mode 100644 index 03306eb0345e..000000000000 --- a/arch/avr32/mach-at32ap/sm.c +++ /dev/null | |||
@@ -1,289 +0,0 @@ | |||
1 | /* | ||
2 | * System Manager driver for AT32AP CPUs | ||
3 | * | ||
4 | * Copyright (C) 2006 Atmel Corporation | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License version 2 as | ||
8 | * published by the Free Software Foundation. | ||
9 | */ | ||
10 | |||
11 | #include <linux/errno.h> | ||
12 | #include <linux/init.h> | ||
13 | #include <linux/interrupt.h> | ||
14 | #include <linux/kernel.h> | ||
15 | #include <linux/platform_device.h> | ||
16 | #include <linux/random.h> | ||
17 | #include <linux/spinlock.h> | ||
18 | |||
19 | #include <asm/intc.h> | ||
20 | #include <asm/io.h> | ||
21 | #include <asm/irq.h> | ||
22 | |||
23 | #include <asm/arch/sm.h> | ||
24 | |||
25 | #include "sm.h" | ||
26 | |||
27 | #define SM_EIM_IRQ_RESOURCE 1 | ||
28 | #define SM_PM_IRQ_RESOURCE 2 | ||
29 | #define SM_RTC_IRQ_RESOURCE 3 | ||
30 | |||
31 | #define to_eim(irqc) container_of(irqc, struct at32_sm, irqc) | ||
32 | |||
33 | struct at32_sm system_manager; | ||
34 | |||
35 | int __init at32_sm_init(void) | ||
36 | { | ||
37 | struct resource *regs; | ||
38 | struct at32_sm *sm = &system_manager; | ||
39 | int ret = -ENXIO; | ||
40 | |||
41 | regs = platform_get_resource(&at32_sm_device, IORESOURCE_MEM, 0); | ||
42 | if (!regs) | ||
43 | goto fail; | ||
44 | |||
45 | spin_lock_init(&sm->lock); | ||
46 | sm->pdev = &at32_sm_device; | ||
47 | |||
48 | ret = -ENOMEM; | ||
49 | sm->regs = ioremap(regs->start, regs->end - regs->start + 1); | ||
50 | if (!sm->regs) | ||
51 | goto fail; | ||
52 | |||
53 | return 0; | ||
54 | |||
55 | fail: | ||
56 | printk(KERN_ERR "Failed to initialize System Manager: %d\n", ret); | ||
57 | return ret; | ||
58 | } | ||
59 | |||
60 | /* | ||
61 | * External Interrupt Module (EIM). | ||
62 | * | ||
63 | * EIM gets level- or edge-triggered interrupts of either polarity | ||
64 | * from the outside and converts it to active-high level-triggered | ||
65 | * interrupts that the internal interrupt controller can handle. EIM | ||
66 | * also provides masking/unmasking of interrupts, as well as | ||
67 | * acknowledging of edge-triggered interrupts. | ||
68 | */ | ||
69 | |||
70 | static irqreturn_t spurious_eim_interrupt(int irq, void *dev_id, | ||
71 | struct pt_regs *regs) | ||
72 | { | ||
73 | printk(KERN_WARNING "Spurious EIM interrupt %d\n", irq); | ||
74 | disable_irq(irq); | ||
75 | return IRQ_NONE; | ||
76 | } | ||
77 | |||
78 | static struct irqaction eim_spurious_action = { | ||
79 | .handler = spurious_eim_interrupt, | ||
80 | }; | ||
81 | |||
82 | static irqreturn_t eim_handle_irq(int irq, void *dev_id, struct pt_regs *regs) | ||
83 | { | ||
84 | struct irq_controller * irqc = dev_id; | ||
85 | struct at32_sm *sm = to_eim(irqc); | ||
86 | unsigned long pending; | ||
87 | |||
88 | /* | ||
89 | * No need to disable interrupts globally. The interrupt | ||
90 | * level relevant to this group must be masked all the time, | ||
91 | * so we know that this particular EIM instance will not be | ||
92 | * re-entered. | ||
93 | */ | ||
94 | spin_lock(&sm->lock); | ||
95 | |||
96 | pending = intc_get_pending(sm->irqc.irq_group); | ||
97 | if (unlikely(!pending)) { | ||
98 | printk(KERN_ERR "EIM (group %u): No interrupts pending!\n", | ||
99 | sm->irqc.irq_group); | ||
100 | goto unlock; | ||
101 | } | ||
102 | |||
103 | do { | ||
104 | struct irqaction *action; | ||
105 | unsigned int i; | ||
106 | |||
107 | i = fls(pending) - 1; | ||
108 | pending &= ~(1 << i); | ||
109 | action = sm->action[i]; | ||
110 | |||
111 | /* Acknowledge the interrupt */ | ||
112 | sm_writel(sm, EIM_ICR, 1 << i); | ||
113 | |||
114 | spin_unlock(&sm->lock); | ||
115 | |||
116 | if (action->flags & SA_INTERRUPT) | ||
117 | local_irq_disable(); | ||
118 | action->handler(sm->irqc.first_irq + i, action->dev_id, regs); | ||
119 | local_irq_enable(); | ||
120 | spin_lock(&sm->lock); | ||
121 | if (action->flags & SA_SAMPLE_RANDOM) | ||
122 | add_interrupt_randomness(sm->irqc.first_irq + i); | ||
123 | } while (pending); | ||
124 | |||
125 | unlock: | ||
126 | spin_unlock(&sm->lock); | ||
127 | return IRQ_HANDLED; | ||
128 | } | ||
129 | |||
130 | static void eim_mask(struct irq_controller *irqc, unsigned int irq) | ||
131 | { | ||
132 | struct at32_sm *sm = to_eim(irqc); | ||
133 | unsigned int i; | ||
134 | |||
135 | i = irq - sm->irqc.first_irq; | ||
136 | sm_writel(sm, EIM_IDR, 1 << i); | ||
137 | } | ||
138 | |||
139 | static void eim_unmask(struct irq_controller *irqc, unsigned int irq) | ||
140 | { | ||
141 | struct at32_sm *sm = to_eim(irqc); | ||
142 | unsigned int i; | ||
143 | |||
144 | i = irq - sm->irqc.first_irq; | ||
145 | sm_writel(sm, EIM_IER, 1 << i); | ||
146 | } | ||
147 | |||
148 | static int eim_setup(struct irq_controller *irqc, unsigned int irq, | ||
149 | struct irqaction *action) | ||
150 | { | ||
151 | struct at32_sm *sm = to_eim(irqc); | ||
152 | sm->action[irq - sm->irqc.first_irq] = action; | ||
153 | /* Acknowledge earlier interrupts */ | ||
154 | sm_writel(sm, EIM_ICR, (1<<(irq - sm->irqc.first_irq))); | ||
155 | eim_unmask(irqc, irq); | ||
156 | return 0; | ||
157 | } | ||
158 | |||
159 | static void eim_free(struct irq_controller *irqc, unsigned int irq, | ||
160 | void *dev) | ||
161 | { | ||
162 | struct at32_sm *sm = to_eim(irqc); | ||
163 | eim_mask(irqc, irq); | ||
164 | sm->action[irq - sm->irqc.first_irq] = &eim_spurious_action; | ||
165 | } | ||
166 | |||
167 | static int eim_set_type(struct irq_controller *irqc, unsigned int irq, | ||
168 | unsigned int type) | ||
169 | { | ||
170 | struct at32_sm *sm = to_eim(irqc); | ||
171 | unsigned long flags; | ||
172 | u32 value, pattern; | ||
173 | |||
174 | spin_lock_irqsave(&sm->lock, flags); | ||
175 | |||
176 | pattern = 1 << (irq - sm->irqc.first_irq); | ||
177 | |||
178 | value = sm_readl(sm, EIM_MODE); | ||
179 | if (type & IRQ_TYPE_LEVEL) | ||
180 | value |= pattern; | ||
181 | else | ||
182 | value &= ~pattern; | ||
183 | sm_writel(sm, EIM_MODE, value); | ||
184 | value = sm_readl(sm, EIM_EDGE); | ||
185 | if (type & IRQ_EDGE_RISING) | ||
186 | value |= pattern; | ||
187 | else | ||
188 | value &= ~pattern; | ||
189 | sm_writel(sm, EIM_EDGE, value); | ||
190 | value = sm_readl(sm, EIM_LEVEL); | ||
191 | if (type & IRQ_LEVEL_HIGH) | ||
192 | value |= pattern; | ||
193 | else | ||
194 | value &= ~pattern; | ||
195 | sm_writel(sm, EIM_LEVEL, value); | ||
196 | |||
197 | spin_unlock_irqrestore(&sm->lock, flags); | ||
198 | |||
199 | return 0; | ||
200 | } | ||
201 | |||
202 | static unsigned int eim_get_type(struct irq_controller *irqc, | ||
203 | unsigned int irq) | ||
204 | { | ||
205 | struct at32_sm *sm = to_eim(irqc); | ||
206 | unsigned long flags; | ||
207 | unsigned int type = 0; | ||
208 | u32 mode, edge, level, pattern; | ||
209 | |||
210 | pattern = 1 << (irq - sm->irqc.first_irq); | ||
211 | |||
212 | spin_lock_irqsave(&sm->lock, flags); | ||
213 | mode = sm_readl(sm, EIM_MODE); | ||
214 | edge = sm_readl(sm, EIM_EDGE); | ||
215 | level = sm_readl(sm, EIM_LEVEL); | ||
216 | spin_unlock_irqrestore(&sm->lock, flags); | ||
217 | |||
218 | if (mode & pattern) | ||
219 | type |= IRQ_TYPE_LEVEL; | ||
220 | if (edge & pattern) | ||
221 | type |= IRQ_EDGE_RISING; | ||
222 | if (level & pattern) | ||
223 | type |= IRQ_LEVEL_HIGH; | ||
224 | |||
225 | return type; | ||
226 | } | ||
227 | |||
228 | static struct irq_controller_class eim_irq_class = { | ||
229 | .typename = "EIM", | ||
230 | .handle = eim_handle_irq, | ||
231 | .setup = eim_setup, | ||
232 | .free = eim_free, | ||
233 | .mask = eim_mask, | ||
234 | .unmask = eim_unmask, | ||
235 | .set_type = eim_set_type, | ||
236 | .get_type = eim_get_type, | ||
237 | }; | ||
238 | |||
239 | static int __init eim_init(void) | ||
240 | { | ||
241 | struct at32_sm *sm = &system_manager; | ||
242 | unsigned int i; | ||
243 | u32 pattern; | ||
244 | int ret; | ||
245 | |||
246 | /* | ||
247 | * The EIM is really the same module as SM, so register | ||
248 | * mapping, etc. has been taken care of already. | ||
249 | */ | ||
250 | |||
251 | /* | ||
252 | * Find out how many interrupt lines that are actually | ||
253 | * implemented in hardware. | ||
254 | */ | ||
255 | sm_writel(sm, EIM_IDR, ~0UL); | ||
256 | sm_writel(sm, EIM_MODE, ~0UL); | ||
257 | pattern = sm_readl(sm, EIM_MODE); | ||
258 | sm->irqc.nr_irqs = fls(pattern); | ||
259 | |||
260 | ret = -ENOMEM; | ||
261 | sm->action = kmalloc(sizeof(*sm->action) * sm->irqc.nr_irqs, | ||
262 | GFP_KERNEL); | ||
263 | if (!sm->action) | ||
264 | goto out; | ||
265 | |||
266 | for (i = 0; i < sm->irqc.nr_irqs; i++) | ||
267 | sm->action[i] = &eim_spurious_action; | ||
268 | |||
269 | spin_lock_init(&sm->lock); | ||
270 | sm->irqc.irq_group = sm->pdev->resource[SM_EIM_IRQ_RESOURCE].start; | ||
271 | sm->irqc.class = &eim_irq_class; | ||
272 | |||
273 | ret = intc_register_controller(&sm->irqc); | ||
274 | if (ret < 0) | ||
275 | goto out_free_actions; | ||
276 | |||
277 | printk("EIM: External Interrupt Module at 0x%p, IRQ group %u\n", | ||
278 | sm->regs, sm->irqc.irq_group); | ||
279 | printk("EIM: Handling %u external IRQs, starting with IRQ%u\n", | ||
280 | sm->irqc.nr_irqs, sm->irqc.first_irq); | ||
281 | |||
282 | return 0; | ||
283 | |||
284 | out_free_actions: | ||
285 | kfree(sm->action); | ||
286 | out: | ||
287 | return ret; | ||
288 | } | ||
289 | arch_initcall(eim_init); | ||