Commit 2eeec856 authored by Magnus Damm's avatar Magnus Damm Committed by Paul Mundt

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: default avatarMagnus Damm <damm@igel.co.jp>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 73505b44
......@@ -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
......
/*
* 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)
{
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
*/
struct intc_desc *d;
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);
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();
}
......@@ -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;
......
......@@ -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)
......
......@@ -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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