diff options
author | Magnus Damm <damm@igel.co.jp> | 2007-08-12 15:29:16 +0900 |
---|---|---|
committer | Paul Mundt <lethal@linux-sh.org> | 2007-09-21 11:57:50 +0900 |
commit | 2eeec85638cebcb6fbcb2abfe182a32252f3456d (patch) | |
tree | 3b98f924a5f961d844555794a3564cbc2c3a8be5 | |
parent | 73505b445dbb8ad12df468404c4dd5cde9c40c65 (diff) | |
download | linux-2eeec85638cebcb6fbcb2abfe182a32252f3456d.tar.bz2 |
sh: intc - convert board specific r2d code
This patch converts the board specific interrupt code for r2d to make
use of intc. While at it we improve the Kconfig to avoid confusion.
- Two sets of interrupt tables exist - one for R2D-1 and one for R2D-PLUS.
- R2D-1 and R2D-PLUS use the same irq constants.
- R2D-1 has AX88796 support, R2D-PLUS does not hook up that IRQ.
- R2D-PLUS has KEY support, R2D-1 does not hook up that IRQ.
- The number and order of IRQ values are disconnected from register bits.
- Interrupt sources now start from IRQ 100.
- The machvec demux function converts from irlm IRQ 0-14 to IRQ 100++.
Tested on R2D-1 and R2D-PLUS boards.
Version 2 adds CONFIG_RTS7751R2D_1 and CONFIG_RTS7751R2D_PLUS together
with intc structured as __initdata.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
-rw-r--r-- | arch/sh/boards/renesas/rts7751r2d/Kconfig | 24 | ||||
-rw-r--r-- | arch/sh/boards/renesas/rts7751r2d/irq.c | 173 | ||||
-rw-r--r-- | arch/sh/boards/renesas/rts7751r2d/setup.c | 8 | ||||
-rw-r--r-- | arch/sh/drivers/pci/ops-rts7751r2d.c | 8 | ||||
-rw-r--r-- | include/asm-sh/rts7751r2d.h | 65 |
5 files changed, 181 insertions, 97 deletions
diff --git a/arch/sh/boards/renesas/rts7751r2d/Kconfig b/arch/sh/boards/renesas/rts7751r2d/Kconfig index 7780d1fb13ff..925a7aa861a7 100644 --- a/arch/sh/boards/renesas/rts7751r2d/Kconfig +++ b/arch/sh/boards/renesas/rts7751r2d/Kconfig @@ -2,10 +2,28 @@ if SH_RTS7751R2D menu "RTS7751R2D options" -config RTS7751R2D_REV11 - bool "RTS7751R2D Rev. 1.1 board support" +choice + prompt "R2D Board Revision" + default RTS7751R2D_PLUS + +config RTS7751R2D_PLUS + bool "R2D-PLUS" + help + Selecting this option will configure the kernel for R2D-PLUS. + + R2D-PLUS is the smaller of the two R2D board versions, equipped + with a single PCI slot. + +config RTS7751R2D_1 + bool "R2D-1" help - Selecting this option will support version rev. 1.1. + Selecting this option will configure the kernel for R2D-1. + + R2D-1 is the larger of the two R2D board versions, equipped + with two PCI slots. + +endchoice + endmenu endif diff --git a/arch/sh/boards/renesas/rts7751r2d/irq.c b/arch/sh/boards/renesas/rts7751r2d/irq.c index b97c25de3a41..e89932903caf 100644 --- a/arch/sh/boards/renesas/rts7751r2d/irq.c +++ b/arch/sh/boards/renesas/rts7751r2d/irq.c @@ -1,9 +1,10 @@ /* * linux/arch/sh/boards/renesas/rts7751r2d/irq.c * + * Copyright (C) 2007 Magnus Damm * Copyright (C) 2000 Kazumoto Kojima * - * Renesas Technology Sales RTS7751R2D Support. + * Renesas Technology Sales RTS7751R2D Support, R2D-PLUS and R2D-1. * * Modified for RTS7751R2D by * Atom Create Engineering Co., Ltd. 2002. @@ -16,67 +17,141 @@ #include <asm/voyagergx.h> #include <asm/rts7751r2d.h> -#if defined(CONFIG_RTS7751R2D_REV11) -static int mask_pos[] = {11, 9, 8, 12, 10, 6, 5, 4, 7, 14, 13, 0, 0, 0, 0}; -#else -static int mask_pos[] = {6, 11, 9, 8, 12, 10, 5, 4, 7, 14, 13, 0, 0, 0, 0}; -#endif +#define R2D_NR_IRL 13 -static void enable_rts7751r2d_irq(unsigned int irq) -{ - /* Set priority in IPR back to original value */ - ctrl_outw(ctrl_inw(IRLCNTR1) | (1 << mask_pos[irq]), IRLCNTR1); -} +enum { + UNUSED = 0, -static void disable_rts7751r2d_irq(unsigned int irq) -{ - /* Set the priority in IPR to 0 */ - ctrl_outw(ctrl_inw(IRLCNTR1) & (0xffff ^ (1 << mask_pos[irq])), - IRLCNTR1); -} + /* board specific interrupt sources (R2D-1 and R2D-PLUS) */ + EXT, /* EXT_INT0-3 */ + RTC_T, RTC_A, /* Real Time Clock */ + AX88796, /* Ethernet controller (R2D-1 board) */ + KEY, /* Key input (R2D-PLUS board) */ + SDCARD, /* SD Card */ + CF_CD, CF_IDE, /* CF Card Detect + CF IDE */ + SM501, /* SM501 aka Voyager */ + PCI_INTD_RTL8139, /* Ethernet controller */ + PCI_INTC_PCI1520, /* Cardbus/PCMCIA bridge */ + PCI_INTB_RTL8139, /* Ethernet controller with HUB (R2D-PLUS board) */ + PCI_INTB_SLOT, /* PCI Slot 3.3v (R2D-1 board) */ + PCI_INTA_SLOT, /* PCI Slot 3.3v */ + TP, /* Touch Panel */ +}; + +#ifdef CONFIG_RTS7751R2D_1 + +/* Vectors for R2D-1 */ +static struct intc_vect vectors_r2d_1[] __initdata = { + INTC_IRQ(EXT, IRQ_EXT), + INTC_IRQ(RTC_T, IRQ_RTC_T), INTC_IRQ(RTC_A, IRQ_RTC_A), + INTC_IRQ(AX88796, IRQ_AX88796), INTC_IRQ(SDCARD, IRQ_SDCARD), + INTC_IRQ(CF_CD, IRQ_CF_CD), INTC_IRQ(CF_IDE, IRQ_CF_IDE), /* ng */ + INTC_IRQ(SM501, IRQ_VOYAGER), + INTC_IRQ(PCI_INTD_RTL8139, IRQ_PCI_INTD), + INTC_IRQ(PCI_INTC_PCI1520, IRQ_PCI_INTC), + INTC_IRQ(PCI_INTB_SLOT, IRQ_PCI_INTB), + INTC_IRQ(PCI_INTA_SLOT, IRQ_PCI_INTA), + INTC_IRQ(TP, IRQ_TP), +}; + +/* IRLMSK mask register layout for R2D-1 */ +static struct intc_mask_reg mask_registers_r2d_1[] __initdata = { + { 0xa4000000, 0, 16, /* IRLMSK */ + { TP, PCI_INTA_SLOT, PCI_INTB_SLOT, + PCI_INTC_PCI1520, PCI_INTD_RTL8139, + SM501, CF_IDE, CF_CD, SDCARD, AX88796, + RTC_A, RTC_T, 0, 0, 0, EXT } }, +}; + +/* IRLn to IRQ table for R2D-1 */ +static unsigned char irl2irq_r2d_1[R2D_NR_IRL] __initdata = { + IRQ_PCI_INTD, IRQ_CF_IDE, IRQ_CF_CD, IRQ_PCI_INTC, + IRQ_VOYAGER, IRQ_AX88796, IRQ_RTC_A, IRQ_RTC_T, + IRQ_SDCARD, IRQ_PCI_INTA, IRQ_PCI_INTB, IRQ_EXT, + IRQ_TP, +}; + +static __initdata DECLARE_INTC_DESC(intc_desc_r2d_1, "r2d-1", + vectors_r2d_1, NULL, NULL, + mask_registers_r2d_1, NULL, NULL); + +#endif /* CONFIG_RTS7751R2D_1 */ + +#ifdef CONFIG_RTS7751R2D_PLUS + +/* Vectors for R2D-PLUS */ +static struct intc_vect vectors_r2d_plus[] __initdata = { + INTC_IRQ(EXT, IRQ_EXT), + INTC_IRQ(RTC_T, IRQ_RTC_T), INTC_IRQ(RTC_A, IRQ_RTC_A), + INTC_IRQ(KEY, IRQ_KEY), INTC_IRQ(SDCARD, IRQ_SDCARD), + INTC_IRQ(CF_CD, IRQ_CF_CD), INTC_IRQ(CF_IDE, IRQ_CF_IDE), + INTC_IRQ(SM501, IRQ_VOYAGER), + INTC_IRQ(PCI_INTD_RTL8139, IRQ_PCI_INTD), + INTC_IRQ(PCI_INTC_PCI1520, IRQ_PCI_INTC), + INTC_IRQ(PCI_INTB_RTL8139, IRQ_PCI_INTB), + INTC_IRQ(PCI_INTA_SLOT, IRQ_PCI_INTA), + INTC_IRQ(TP, IRQ_TP), +}; + +/* IRLMSK mask register layout for R2D-PLUS */ +static struct intc_mask_reg mask_registers_r2d_plus[] __initdata = { + { 0xa4000000, 0, 16, /* IRLMSK */ + { TP, PCI_INTA_SLOT, PCI_INTB_RTL8139, + PCI_INTC_PCI1520, PCI_INTD_RTL8139, + SM501, CF_IDE, CF_CD, SDCARD, KEY, + RTC_A, RTC_T, 0, 0, 0, EXT } }, +}; + +/* IRLn to IRQ table for R2D-PLUS */ +static unsigned char irl2irq_r2d_plus[R2D_NR_IRL] __initdata = { + IRQ_PCI_INTD, IRQ_CF_IDE, IRQ_CF_CD, IRQ_PCI_INTC, + IRQ_VOYAGER, IRQ_KEY, IRQ_RTC_A, IRQ_RTC_T, + IRQ_SDCARD, IRQ_PCI_INTA, IRQ_PCI_INTB, IRQ_EXT, + IRQ_TP, +}; + +static __initdata DECLARE_INTC_DESC(intc_desc_r2d_plus, "r2d-plus", + vectors_r2d_plus, NULL, NULL, + mask_registers_r2d_plus, NULL, NULL); + +#endif /* CONFIG_RTS7751R2D_PLUS */ + +static unsigned char irl2irq[R2D_NR_IRL]; int rts7751r2d_irq_demux(int irq) { - return irq; -} + if (irq >= R2D_NR_IRL || !irl2irq[irq]) + return irq; -static struct irq_chip rts7751r2d_irq_chip __read_mostly = { - .name = "rts7751r2d", - .mask = disable_rts7751r2d_irq, - .unmask = enable_rts7751r2d_irq, - .mask_ack = disable_rts7751r2d_irq, -}; + return irl2irq[irq]; +} /* * Initialize IRQ setting */ void __init init_rts7751r2d_IRQ(void) { - int i; - - /* IRL0=KEY Input - * IRL1=Ethernet - * IRL2=CF Card - * IRL3=CF Card Insert - * IRL4=PCMCIA - * IRL5=VOYAGER - * IRL6=RTC Alarm - * IRL7=RTC Timer - * IRL8=SD Card - * IRL9=PCI Slot #1 - * IRL10=PCI Slot #2 - * IRL11=Extention #0 - * IRL12=Extention #1 - * IRL13=Extention #2 - * IRL14=Extention #3 - */ - - for (i=0; i<15; i++) { - disable_irq_nosync(i); - set_irq_chip_and_handler_name(i, &rts7751r2d_irq_chip, - handle_level_irq, "level"); - enable_rts7751r2d_irq(i); + struct intc_desc *d; + + switch (ctrl_inw(PA_BVERREG)) { +#ifdef CONFIG_RTS7751R2D_PLUS + case 0x10: + printk(KERN_INFO "Using R2D-PLUS interrupt controller.\n"); + d = &intc_desc_r2d_plus; + memcpy(irl2irq, irl2irq_r2d_plus, R2D_NR_IRL); + break; +#endif +#ifdef CONFIG_RTS7751R2D_1 + case 0x11: + printk(KERN_INFO "Using R2D-1 interrupt controller.\n"); + d = &intc_desc_r2d_1; + memcpy(irl2irq, irl2irq_r2d_1, R2D_NR_IRL); + break; +#endif + default: + return; } + register_intc_controller(d); setup_voyagergx_irq(); } diff --git a/arch/sh/boards/renesas/rts7751r2d/setup.c b/arch/sh/boards/renesas/rts7751r2d/setup.c index 4d1bbd30e52b..90703d5d1230 100644 --- a/arch/sh/boards/renesas/rts7751r2d/setup.c +++ b/arch/sh/boards/renesas/rts7751r2d/setup.c @@ -54,11 +54,7 @@ static struct resource cf_ide_resources[] = { .flags = IORESOURCE_MEM, }, [2] = { -#ifdef CONFIG_RTS7751R2D_REV11 - .start = 1, -#else - .start = 2, -#endif + .start = IRQ_CF_IDE, .flags = IORESOURCE_IRQ, }, }; @@ -147,7 +143,7 @@ static int __init rts7751r2d_devices_setup(void) { int ret; - if (ctrl_inw(PA_BVERREG) == 0x10) { /* only working on R2D-PLUS */ + if (ctrl_inw(PA_BVERREG) == 0x10) { /* R2D-PLUS */ ret = platform_device_register(&cf_ide_device); if (ret) return ret; diff --git a/arch/sh/drivers/pci/ops-rts7751r2d.c b/arch/sh/drivers/pci/ops-rts7751r2d.c index 4a518d948049..ec8430c8d2d1 100644 --- a/arch/sh/drivers/pci/ops-rts7751r2d.c +++ b/arch/sh/drivers/pci/ops-rts7751r2d.c @@ -19,10 +19,10 @@ #include "pci-sh4.h" static u8 rts7751r2d_irq_tab[] __initdata = { - IRQ_PCISLOT1, - IRQ_PCISLOT2, - IRQ_PCMCIA, - IRQ_PCIETH, + IRQ_PCI_INTA, + IRQ_PCI_INTB, + IRQ_PCI_INTC, + IRQ_PCI_INTD, }; int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) diff --git a/include/asm-sh/rts7751r2d.h b/include/asm-sh/rts7751r2d.h index 5d7800aa31b5..83b9c111f171 100644 --- a/include/asm-sh/rts7751r2d.h +++ b/include/asm-sh/rts7751r2d.h @@ -9,7 +9,7 @@ * Renesas Technology Sales RTS7751R2D support */ -/* Box specific addresses. */ +/* Board specific addresses. */ #define PA_BCR 0xa4000000 /* FPGA */ #define PA_IRLMON 0xa4000002 /* Interrupt Status control */ @@ -20,19 +20,19 @@ #define PA_RTCCE 0xa400000c /* RTC(9701) Enable control */ #define PA_PCICD 0xa400000e /* PCI Extention detect control */ #define PA_VOYAGERRTS 0xa4000020 /* VOYAGER Reset control */ -#if defined(CONFIG_RTS7751R2D_REV11) -#define PA_AXRST 0xa4000022 /* AX_LAN Reset control */ -#define PA_CFRST 0xa4000024 /* CF Reset control */ -#define PA_ADMRTS 0xa4000026 /* SD Reset control */ -#define PA_EXTRST 0xa4000028 /* Extention Reset control */ -#define PA_CFCDINTCLR 0xa400002a /* CF Insert Interrupt clear */ -#else -#define PA_CFRST 0xa4000022 /* CF Reset control */ -#define PA_ADMRTS 0xa4000024 /* SD Reset control */ -#define PA_EXTRST 0xa4000026 /* Extention Reset control */ -#define PA_CFCDINTCLR 0xa4000028 /* CF Insert Interrupt clear */ -#define PA_KEYCTLCLR 0xa400002a /* Key Interrupt clear */ -#endif + +#define PA_R2D1_AXRST 0xa4000022 /* AX_LAN Reset control */ +#define PA_R2D1_CFRST 0xa4000024 /* CF Reset control */ +#define PA_R2D1_ADMRTS 0xa4000026 /* SD Reset control */ +#define PA_R2D1_EXTRST 0xa4000028 /* Extention Reset control */ +#define PA_R2D1_CFCDINTCLR 0xa400002a /* CF Insert Interrupt clear */ + +#define PA_R2DPLUS_CFRST 0xa4000022 /* CF Reset control */ +#define PA_R2DPLUS_ADMRTS 0xa4000024 /* SD Reset control */ +#define PA_R2DPLUS_EXTRST 0xa4000026 /* Extention Reset control */ +#define PA_R2DPLUS_CFCDINTCLR 0xa4000028 /* CF Insert Interrupt clear */ +#define PA_R2DPLUS_KEYCTLCLR 0xa400002a /* Key Interrupt clear */ + #define PA_POWOFF 0xa4000030 /* Board Power OFF control */ #define PA_VERREG 0xa4000032 /* FPGA Version Register */ #define PA_INPORT 0xa4000034 /* KEY Input Port control */ @@ -46,27 +46,22 @@ #define IRLCNTR1 (PA_BCR + 0) /* Interrupt Control Register1 */ -#if defined(CONFIG_RTS7751R2D_REV11) -#define IRQ_PCIETH 0 /* PCI Ethernet IRQ */ -#define IRQ_CFCARD 1 /* CF Card IRQ */ -#define IRQ_CFINST 2 /* CF Card Insert IRQ */ -#define IRQ_PCMCIA 3 /* PCMCIA IRQ */ -#define IRQ_VOYAGER 4 /* VOYAGER IRQ */ -#define IRQ_ONETH 5 /* On board Ethernet IRQ */ -#else -#define IRQ_KEYIN 0 /* Key Input IRQ */ -#define IRQ_PCIETH 1 /* PCI Ethernet IRQ */ -#define IRQ_CFCARD 2 /* CF Card IRQ */ -#define IRQ_CFINST 3 /* CF Card Insert IRQ */ -#define IRQ_PCMCIA 4 /* PCMCIA IRQ */ -#define IRQ_VOYAGER 5 /* VOYAGER IRQ */ -#endif -#define IRQ_RTCALM 6 /* RTC Alarm IRQ */ -#define IRQ_RTCTIME 7 /* RTC Timer IRQ */ -#define IRQ_SDCARD 8 /* SD Card IRQ */ -#define IRQ_PCISLOT1 9 /* PCI Slot #1 IRQ */ -#define IRQ_PCISLOT2 10 /* PCI Slot #2 IRQ */ -#define IRQ_EXTENTION 11 /* EXTn IRQ */ +#define R2D_FPGA_IRQ_BASE 100 + +#define IRQ_VOYAGER (R2D_FPGA_IRQ_BASE + 0) +#define IRQ_EXT (R2D_FPGA_IRQ_BASE + 1) +#define IRQ_TP (R2D_FPGA_IRQ_BASE + 2) +#define IRQ_RTC_T (R2D_FPGA_IRQ_BASE + 3) +#define IRQ_RTC_A (R2D_FPGA_IRQ_BASE + 4) +#define IRQ_SDCARD (R2D_FPGA_IRQ_BASE + 5) +#define IRQ_CF_CD (R2D_FPGA_IRQ_BASE + 6) +#define IRQ_CF_IDE (R2D_FPGA_IRQ_BASE + 7) +#define IRQ_AX88796 (R2D_FPGA_IRQ_BASE + 8) +#define IRQ_KEY (R2D_FPGA_IRQ_BASE + 9) +#define IRQ_PCI_INTA (R2D_FPGA_IRQ_BASE + 10) +#define IRQ_PCI_INTB (R2D_FPGA_IRQ_BASE + 11) +#define IRQ_PCI_INTC (R2D_FPGA_IRQ_BASE + 12) +#define IRQ_PCI_INTD (R2D_FPGA_IRQ_BASE + 13) /* arch/sh/boards/renesas/rts7751r2d/irq.c */ void init_rts7751r2d_IRQ(void); 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