mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-20 11:13:58 +08:00
[PATCH] Add MPC5200 Interrupt Controller support.
This adds support for the MPC52xx Interrupt controller for ARCH=powerpc. It includes the main code in arch/powerpc/sysdev/ as well as a header file in include/asm-powerpc. Signed-off-by: Nicolas DET <nd@bplan-gmbh.de> Acked-by: Sylvain Munaut <tnt@246tNt.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Nicolas DET
Paul Mackerras
parent
2fcd34291b
commit
0f6c95dcab
@ -12,6 +12,7 @@ obj-$(CONFIG_MMIO_NVRAM) += mmio_nvram.o
|
||||
obj-$(CONFIG_FSL_SOC) += fsl_soc.o
|
||||
obj-$(CONFIG_TSI108_BRIDGE) += tsi108_pci.o tsi108_dev.o
|
||||
obj-$(CONFIG_QUICC_ENGINE) += qe_lib/
|
||||
obj-$(CONFIG_PPC_MPC52xx) += mpc52xx_pic.o
|
||||
|
||||
ifeq ($(CONFIG_PPC_MERGE),y)
|
||||
obj-$(CONFIG_PPC_I8259) += i8259.o
|
||||
|
||||
538
arch/powerpc/sysdev/mpc52xx_pic.c
Normal file
538
arch/powerpc/sysdev/mpc52xx_pic.c
Normal file
@ -0,0 +1,538 @@
|
||||
/*
|
||||
*
|
||||
* Programmable Interrupt Controller functions for the Freescale MPC52xx.
|
||||
*
|
||||
* Copyright (C) 2006 bplan GmbH
|
||||
*
|
||||
* Based on the code from the 2.4 kernel by
|
||||
* Dale Farnsworth <dfarnsworth@mvista.com> and Kent Borg.
|
||||
*
|
||||
* Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com>
|
||||
* Copyright (C) 2003 Montavista Software, Inc
|
||||
*
|
||||
* This file is licensed under the terms of the GNU General Public License
|
||||
* version 2. This program is licensed "as is" without any warranty of any
|
||||
* kind, whether express or implied.
|
||||
*
|
||||
*/
|
||||
|
||||
#undef DEBUG
|
||||
|
||||
#include <linux/stddef.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/sched.h>
|
||||
#include <linux/signal.h>
|
||||
#include <linux/stddef.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/irq.h>
|
||||
#include <linux/hardirq.h>
|
||||
|
||||
#include <asm/io.h>
|
||||
#include <asm/processor.h>
|
||||
#include <asm/system.h>
|
||||
#include <asm/irq.h>
|
||||
#include <asm/prom.h>
|
||||
#include <asm/mpc52xx.h>
|
||||
|
||||
/*
|
||||
*
|
||||
*/
|
||||
|
||||
static struct mpc52xx_intr __iomem *intr;
|
||||
static struct mpc52xx_sdma __iomem *sdma;
|
||||
static struct irq_host *mpc52xx_irqhost = NULL;
|
||||
|
||||
static unsigned char mpc52xx_map_senses[4] = {
|
||||
IRQ_TYPE_LEVEL_HIGH,
|
||||
IRQ_TYPE_EDGE_RISING,
|
||||
IRQ_TYPE_EDGE_FALLING,
|
||||
IRQ_TYPE_LEVEL_LOW,
|
||||
};
|
||||
|
||||
/*
|
||||
*
|
||||
*/
|
||||
|
||||
static inline void io_be_setbit(u32 __iomem * addr, int bitno)
|
||||
{
|
||||
out_be32(addr, in_be32(addr) | (1 << bitno));
|
||||
}
|
||||
|
||||
static inline void io_be_clrbit(u32 __iomem * addr, int bitno)
|
||||
{
|
||||
out_be32(addr, in_be32(addr) & ~(1 << bitno));
|
||||
}
|
||||
|
||||
/*
|
||||
* IRQ[0-3] interrupt irq_chip
|
||||
*/
|
||||
|
||||
static void mpc52xx_extirq_mask(unsigned int virq)
|
||||
{
|
||||
int irq;
|
||||
int l2irq;
|
||||
|
||||
irq = irq_map[virq].hwirq;
|
||||
l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
|
||||
|
||||
pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq);
|
||||
|
||||
io_be_clrbit(&intr->ctrl, 11 - l2irq);
|
||||
}
|
||||
|
||||
static void mpc52xx_extirq_unmask(unsigned int virq)
|
||||
{
|
||||
int irq;
|
||||
int l2irq;
|
||||
|
||||
irq = irq_map[virq].hwirq;
|
||||
l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
|
||||
|
||||
pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq);
|
||||
|
||||
io_be_setbit(&intr->ctrl, 11 - l2irq);
|
||||
}
|
||||
|
||||
static void mpc52xx_extirq_ack(unsigned int virq)
|
||||
{
|
||||
int irq;
|
||||
int l2irq;
|
||||
|
||||
irq = irq_map[virq].hwirq;
|
||||
l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
|
||||
|
||||
pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq);
|
||||
|
||||
io_be_setbit(&intr->ctrl, 27 - l2irq);
|
||||
}
|
||||
|
||||
static struct irq_chip mpc52xx_extirq_irqchip = {
|
||||
.typename = " MPC52xx IRQ[0-3] ",
|
||||
.mask = mpc52xx_extirq_mask,
|
||||
.unmask = mpc52xx_extirq_unmask,
|
||||
.ack = mpc52xx_extirq_ack,
|
||||
};
|
||||
|
||||
/*
|
||||
* Main interrupt irq_chip
|
||||
*/
|
||||
|
||||
static void mpc52xx_main_mask(unsigned int virq)
|
||||
{
|
||||
int irq;
|
||||
int l2irq;
|
||||
|
||||
irq = irq_map[virq].hwirq;
|
||||
l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
|
||||
|
||||
pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq);
|
||||
|
||||
io_be_setbit(&intr->main_mask, 15 - l2irq);
|
||||
}
|
||||
|
||||
static void mpc52xx_main_unmask(unsigned int virq)
|
||||
{
|
||||
int irq;
|
||||
int l2irq;
|
||||
|
||||
irq = irq_map[virq].hwirq;
|
||||
l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
|
||||
|
||||
pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq);
|
||||
|
||||
io_be_clrbit(&intr->main_mask, 15 - l2irq);
|
||||
}
|
||||
|
||||
static struct irq_chip mpc52xx_main_irqchip = {
|
||||
.typename = "MPC52xx Main",
|
||||
.mask = mpc52xx_main_mask,
|
||||
.mask_ack = mpc52xx_main_mask,
|
||||
.unmask = mpc52xx_main_unmask,
|
||||
};
|
||||
|
||||
/*
|
||||
* Peripherals interrupt irq_chip
|
||||
*/
|
||||
|
||||
static void mpc52xx_periph_mask(unsigned int virq)
|
||||
{
|
||||
int irq;
|
||||
int l2irq;
|
||||
|
||||
irq = irq_map[virq].hwirq;
|
||||
l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
|
||||
|
||||
pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq);
|
||||
|
||||
io_be_setbit(&intr->per_mask, 31 - l2irq);
|
||||
}
|
||||
|
||||
static void mpc52xx_periph_unmask(unsigned int virq)
|
||||
{
|
||||
int irq;
|
||||
int l2irq;
|
||||
|
||||
irq = irq_map[virq].hwirq;
|
||||
l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
|
||||
|
||||
pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq);
|
||||
|
||||
io_be_clrbit(&intr->per_mask, 31 - l2irq);
|
||||
}
|
||||
|
||||
static struct irq_chip mpc52xx_periph_irqchip = {
|
||||
.typename = "MPC52xx Peripherals",
|
||||
.mask = mpc52xx_periph_mask,
|
||||
.mask_ack = mpc52xx_periph_mask,
|
||||
.unmask = mpc52xx_periph_unmask,
|
||||
};
|
||||
|
||||
/*
|
||||
* SDMA interrupt irq_chip
|
||||
*/
|
||||
|
||||
static void mpc52xx_sdma_mask(unsigned int virq)
|
||||
{
|
||||
int irq;
|
||||
int l2irq;
|
||||
|
||||
irq = irq_map[virq].hwirq;
|
||||
l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
|
||||
|
||||
pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq);
|
||||
|
||||
io_be_setbit(&sdma->IntMask, l2irq);
|
||||
}
|
||||
|
||||
static void mpc52xx_sdma_unmask(unsigned int virq)
|
||||
{
|
||||
int irq;
|
||||
int l2irq;
|
||||
|
||||
irq = irq_map[virq].hwirq;
|
||||
l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
|
||||
|
||||
pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq);
|
||||
|
||||
io_be_clrbit(&sdma->IntMask, l2irq);
|
||||
}
|
||||
|
||||
static void mpc52xx_sdma_ack(unsigned int virq)
|
||||
{
|
||||
int irq;
|
||||
int l2irq;
|
||||
|
||||
irq = irq_map[virq].hwirq;
|
||||
l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
|
||||
|
||||
pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq);
|
||||
|
||||
out_be32(&sdma->IntPend, 1 << l2irq);
|
||||
}
|
||||
|
||||
static struct irq_chip mpc52xx_sdma_irqchip = {
|
||||
.typename = "MPC52xx SDMA",
|
||||
.mask = mpc52xx_sdma_mask,
|
||||
.unmask = mpc52xx_sdma_unmask,
|
||||
.ack = mpc52xx_sdma_ack,
|
||||
};
|
||||
|
||||
/*
|
||||
* irq_host
|
||||
*/
|
||||
|
||||
static int mpc52xx_irqhost_match(struct irq_host *h, struct device_node *node)
|
||||
{
|
||||
pr_debug("%s: node=%p\n", __func__, node);
|
||||
return mpc52xx_irqhost->host_data == node;
|
||||
}
|
||||
|
||||
static int mpc52xx_irqhost_xlate(struct irq_host *h, struct device_node *ct,
|
||||
u32 * intspec, unsigned int intsize,
|
||||
irq_hw_number_t * out_hwirq,
|
||||
unsigned int *out_flags)
|
||||
{
|
||||
int intrvect_l1;
|
||||
int intrvect_l2;
|
||||
int intrvect_type;
|
||||
int intrvect_linux;
|
||||
|
||||
if (intsize != 3)
|
||||
return -1;
|
||||
|
||||
intrvect_l1 = (int)intspec[0];
|
||||
intrvect_l2 = (int)intspec[1];
|
||||
intrvect_type = (int)intspec[2];
|
||||
|
||||
intrvect_linux =
|
||||
(intrvect_l1 << MPC52xx_IRQ_L1_OFFSET) & MPC52xx_IRQ_L1_MASK;
|
||||
intrvect_linux |=
|
||||
(intrvect_l2 << MPC52xx_IRQ_L2_OFFSET) & MPC52xx_IRQ_L2_MASK;
|
||||
|
||||
pr_debug("return %x, l1=%d, l2=%d\n", intrvect_linux, intrvect_l1,
|
||||
intrvect_l2);
|
||||
|
||||
*out_hwirq = intrvect_linux;
|
||||
*out_flags = mpc52xx_map_senses[intrvect_type];
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* this function retrieves the correct IRQ type out
|
||||
* of the MPC regs
|
||||
* Only externals IRQs needs this
|
||||
*/
|
||||
static int mpc52xx_irqx_gettype(int irq)
|
||||
{
|
||||
int type;
|
||||
u32 ctrl_reg;
|
||||
|
||||
ctrl_reg = in_be32(&intr->ctrl);
|
||||
type = (ctrl_reg >> (22 - irq * 2)) & 0x3;
|
||||
|
||||
return mpc52xx_map_senses[type];
|
||||
}
|
||||
|
||||
static int mpc52xx_irqhost_map(struct irq_host *h, unsigned int virq,
|
||||
irq_hw_number_t irq)
|
||||
{
|
||||
int l1irq;
|
||||
int l2irq;
|
||||
struct irq_chip *good_irqchip;
|
||||
void *good_handle;
|
||||
int type;
|
||||
|
||||
l1irq = (irq & MPC52xx_IRQ_L1_MASK) >> MPC52xx_IRQ_L1_OFFSET;
|
||||
l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET;
|
||||
|
||||
/*
|
||||
* Most of ours IRQs will be level low
|
||||
* Only external IRQs on some platform may be others
|
||||
*/
|
||||
type = IRQ_TYPE_LEVEL_LOW;
|
||||
|
||||
switch (l1irq) {
|
||||
case MPC52xx_IRQ_L1_CRIT:
|
||||
pr_debug("%s: Critical. l2=%x\n", __func__, l2irq);
|
||||
|
||||
BUG_ON(l2irq != 0);
|
||||
|
||||
type = mpc52xx_irqx_gettype(l2irq);
|
||||
good_irqchip = &mpc52xx_extirq_irqchip;
|
||||
break;
|
||||
|
||||
case MPC52xx_IRQ_L1_MAIN:
|
||||
pr_debug("%s: Main IRQ[1-3] l2=%x\n", __func__, l2irq);
|
||||
|
||||
if ((l2irq >= 1) && (l2irq <= 3)) {
|
||||
type = mpc52xx_irqx_gettype(l2irq);
|
||||
good_irqchip = &mpc52xx_extirq_irqchip;
|
||||
} else {
|
||||
good_irqchip = &mpc52xx_main_irqchip;
|
||||
}
|
||||
break;
|
||||
|
||||
case MPC52xx_IRQ_L1_PERP:
|
||||
pr_debug("%s: Peripherals. l2=%x\n", __func__, l2irq);
|
||||
good_irqchip = &mpc52xx_periph_irqchip;
|
||||
break;
|
||||
|
||||
case MPC52xx_IRQ_L1_SDMA:
|
||||
pr_debug("%s: SDMA. l2=%x\n", __func__, l2irq);
|
||||
good_irqchip = &mpc52xx_sdma_irqchip;
|
||||
break;
|
||||
|
||||
default:
|
||||
pr_debug("%s: Error, unknown L1 IRQ (0x%x)\n", __func__, l1irq);
|
||||
printk(KERN_ERR "Unknow IRQ!\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
switch (type) {
|
||||
case IRQ_TYPE_EDGE_FALLING:
|
||||
case IRQ_TYPE_EDGE_RISING:
|
||||
good_handle = handle_edge_irq;
|
||||
break;
|
||||
default:
|
||||
good_handle = handle_level_irq;
|
||||
}
|
||||
|
||||
set_irq_chip_and_handler(virq, good_irqchip, good_handle);
|
||||
|
||||
pr_debug("%s: virq=%x, hw=%x. type=%x\n", __func__, virq,
|
||||
(int)irq, type);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct irq_host_ops mpc52xx_irqhost_ops = {
|
||||
.match = mpc52xx_irqhost_match,
|
||||
.xlate = mpc52xx_irqhost_xlate,
|
||||
.map = mpc52xx_irqhost_map,
|
||||
};
|
||||
|
||||
/*
|
||||
* init (public)
|
||||
*/
|
||||
|
||||
void __init mpc52xx_init_irq(void)
|
||||
{
|
||||
struct device_node *picnode = NULL;
|
||||
int picnode_regsize;
|
||||
u32 picnode_regoffset;
|
||||
|
||||
struct device_node *sdmanode = NULL;
|
||||
int sdmanode_regsize;
|
||||
u32 sdmanode_regoffset;
|
||||
|
||||
u64 size64;
|
||||
int flags;
|
||||
|
||||
u32 intr_ctrl;
|
||||
|
||||
picnode = of_find_compatible_node(NULL, "interrupt-controller",
|
||||
"mpc5200-pic");
|
||||
if (picnode == NULL) {
|
||||
printk(KERN_ERR "MPC52xx PIC: "
|
||||
"Unable to find the interrupt controller "
|
||||
"in the OpenFirmware device tree\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
sdmanode = of_find_compatible_node(NULL, "dma-controller",
|
||||
"mpc5200-bestcomm");
|
||||
if (sdmanode == NULL) {
|
||||
printk(KERN_ERR "MPC52xx PIC"
|
||||
"Unable to find the Bestcomm DMA controller device "
|
||||
"in the OpenFirmware device tree\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* Retrieve PIC ressources */
|
||||
picnode_regoffset = (u32) of_get_address(picnode, 0, &size64, &flags);
|
||||
if (picnode_regoffset == 0) {
|
||||
printk(KERN_ERR "MPC52xx PIC"
|
||||
"Unable to get the interrupt controller address\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
picnode_regoffset =
|
||||
of_translate_address(picnode, (u32 *) picnode_regoffset);
|
||||
picnode_regsize = (int)size64;
|
||||
|
||||
/* Retrieve SDMA ressources */
|
||||
sdmanode_regoffset = (u32) of_get_address(sdmanode, 0, &size64, &flags);
|
||||
if (sdmanode_regoffset == 0) {
|
||||
printk(KERN_ERR "MPC52xx PIC: "
|
||||
"Unable to get the Bestcomm DMA controller address\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
sdmanode_regoffset =
|
||||
of_translate_address(sdmanode, (u32 *) sdmanode_regoffset);
|
||||
sdmanode_regsize = (int)size64;
|
||||
|
||||
/* Remap the necessary zones */
|
||||
intr = ioremap(picnode_regoffset, picnode_regsize);
|
||||
if (intr == NULL) {
|
||||
printk(KERN_ERR "MPC52xx PIC: "
|
||||
"Unable to ioremap interrupt controller registers!\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
sdma = ioremap(sdmanode_regoffset, sdmanode_regsize);
|
||||
if (sdma == NULL) {
|
||||
iounmap(intr);
|
||||
printk(KERN_ERR "MPC52xx PIC: "
|
||||
"Unable to ioremap Bestcomm DMA registers!\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
printk(KERN_INFO "MPC52xx PIC: MPC52xx PIC Remapped at 0x%8.8x\n",
|
||||
picnode_regoffset);
|
||||
printk(KERN_INFO "MPC52xx PIC: MPC52xx SDMA Remapped at 0x%8.8x\n",
|
||||
sdmanode_regoffset);
|
||||
|
||||
/* Disable all interrupt sources. */
|
||||
out_be32(&sdma->IntPend, 0xffffffff); /* 1 means clear pending */
|
||||
out_be32(&sdma->IntMask, 0xffffffff); /* 1 means disabled */
|
||||
out_be32(&intr->per_mask, 0x7ffffc00); /* 1 means disabled */
|
||||
out_be32(&intr->main_mask, 0x00010fff); /* 1 means disabled */
|
||||
intr_ctrl = in_be32(&intr->ctrl);
|
||||
intr_ctrl &= 0x00ff0000; /* Keeps IRQ[0-3] config */
|
||||
intr_ctrl |= 0x0f000000 | /* clear IRQ 0-3 */
|
||||
0x00001000 | /* MEE master external enable */
|
||||
0x00000000 | /* 0 means disable IRQ 0-3 */
|
||||
0x00000001; /* CEb route critical normally */
|
||||
out_be32(&intr->ctrl, intr_ctrl);
|
||||
|
||||
/* Zero a bunch of the priority settings. */
|
||||
out_be32(&intr->per_pri1, 0);
|
||||
out_be32(&intr->per_pri2, 0);
|
||||
out_be32(&intr->per_pri3, 0);
|
||||
out_be32(&intr->main_pri1, 0);
|
||||
out_be32(&intr->main_pri2, 0);
|
||||
|
||||
/*
|
||||
* As last step, add an irq host to translate the real
|
||||
* hw irq information provided by the ofw to linux virq
|
||||
*/
|
||||
|
||||
mpc52xx_irqhost =
|
||||
irq_alloc_host(IRQ_HOST_MAP_LINEAR, MPC52xx_IRQ_HIGHTESTHWIRQ,
|
||||
&mpc52xx_irqhost_ops, -1);
|
||||
|
||||
if (mpc52xx_irqhost) {
|
||||
mpc52xx_irqhost->host_data = picnode;
|
||||
printk(KERN_INFO "MPC52xx PIC is up and running!\n");
|
||||
} else {
|
||||
printk(KERN_ERR
|
||||
"MPC52xx PIC: Unable to allocate the IRQ host\n");
|
||||
}
|
||||
|
||||
end:
|
||||
of_node_put(picnode);
|
||||
of_node_put(sdmanode);
|
||||
}
|
||||
|
||||
/*
|
||||
* get_irq (public)
|
||||
*/
|
||||
unsigned int mpc52xx_get_irq(void)
|
||||
{
|
||||
u32 status;
|
||||
int irq = NO_IRQ_IGNORE;
|
||||
|
||||
status = in_be32(&intr->enc_status);
|
||||
if (status & 0x00000400) { /* critical */
|
||||
irq = (status >> 8) & 0x3;
|
||||
if (irq == 2) /* high priority peripheral */
|
||||
goto peripheral;
|
||||
irq |= (MPC52xx_IRQ_L1_CRIT << MPC52xx_IRQ_L1_OFFSET) &
|
||||
MPC52xx_IRQ_L1_MASK;
|
||||
} else if (status & 0x00200000) { /* main */
|
||||
irq = (status >> 16) & 0x1f;
|
||||
if (irq == 4) /* low priority peripheral */
|
||||
goto peripheral;
|
||||
irq |= (MPC52xx_IRQ_L1_MAIN << MPC52xx_IRQ_L1_OFFSET) &
|
||||
MPC52xx_IRQ_L1_MASK;
|
||||
} else if (status & 0x20000000) { /* peripheral */
|
||||
peripheral:
|
||||
irq = (status >> 24) & 0x1f;
|
||||
if (irq == 0) { /* bestcomm */
|
||||
status = in_be32(&sdma->IntPend);
|
||||
irq = ffs(status) - 1;
|
||||
irq |= (MPC52xx_IRQ_L1_SDMA << MPC52xx_IRQ_L1_OFFSET) &
|
||||
MPC52xx_IRQ_L1_MASK;
|
||||
} else
|
||||
irq |= (MPC52xx_IRQ_L1_PERP << MPC52xx_IRQ_L1_OFFSET) &
|
||||
MPC52xx_IRQ_L1_MASK;
|
||||
}
|
||||
|
||||
pr_debug("%s: irq=%x. virq=%d\n", __func__, irq,
|
||||
irq_linear_revmap(mpc52xx_irqhost, irq));
|
||||
|
||||
return irq_linear_revmap(mpc52xx_irqhost, irq);
|
||||
}
|
||||
|
||||
287
include/asm-powerpc/mpc52xx.h
Normal file
287
include/asm-powerpc/mpc52xx.h
Normal file
@ -0,0 +1,287 @@
|
||||
/*
|
||||
* Prototypes, etc. for the Freescale MPC52xx embedded cpu chips
|
||||
* May need to be cleaned as the port goes on ...
|
||||
*
|
||||
* Copyright (C) 2004-2005 Sylvain Munaut <tnt@246tNt.com>
|
||||
* Copyright (C) 2003 MontaVista, Software, Inc.
|
||||
*
|
||||
* This file is licensed under the terms of the GNU General Public License
|
||||
* version 2. This program is licensed "as is" without any warranty of any
|
||||
* kind, whether express or implied.
|
||||
*/
|
||||
|
||||
#ifndef __ASM_POWERPC_MPC52xx_H__
|
||||
#define __ASM_POWERPC_MPC52xx_H__
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
#include <asm/types.h>
|
||||
#include <asm/prom.h>
|
||||
#endif /* __ASSEMBLY__ */
|
||||
|
||||
|
||||
/* ======================================================================== */
|
||||
/* HW IRQ mapping */
|
||||
/* ======================================================================== */
|
||||
|
||||
#define MPC52xx_IRQ_L1_CRIT (0)
|
||||
#define MPC52xx_IRQ_L1_MAIN (1)
|
||||
#define MPC52xx_IRQ_L1_PERP (2)
|
||||
#define MPC52xx_IRQ_L1_SDMA (3)
|
||||
|
||||
#define MPC52xx_IRQ_L1_OFFSET (6)
|
||||
#define MPC52xx_IRQ_L1_MASK (0xc0)
|
||||
|
||||
#define MPC52xx_IRQ_L2_OFFSET (0)
|
||||
#define MPC52xx_IRQ_L2_MASK (0x3f)
|
||||
|
||||
#define MPC52xx_IRQ_HIGHTESTHWIRQ (0xd0)
|
||||
|
||||
|
||||
/* ======================================================================== */
|
||||
/* Structures mapping of some unit register set */
|
||||
/* ======================================================================== */
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
/* Interrupt controller Register set */
|
||||
struct mpc52xx_intr {
|
||||
u32 per_mask; /* INTR + 0x00 */
|
||||
u32 per_pri1; /* INTR + 0x04 */
|
||||
u32 per_pri2; /* INTR + 0x08 */
|
||||
u32 per_pri3; /* INTR + 0x0c */
|
||||
u32 ctrl; /* INTR + 0x10 */
|
||||
u32 main_mask; /* INTR + 0x14 */
|
||||
u32 main_pri1; /* INTR + 0x18 */
|
||||
u32 main_pri2; /* INTR + 0x1c */
|
||||
u32 reserved1; /* INTR + 0x20 */
|
||||
u32 enc_status; /* INTR + 0x24 */
|
||||
u32 crit_status; /* INTR + 0x28 */
|
||||
u32 main_status; /* INTR + 0x2c */
|
||||
u32 per_status; /* INTR + 0x30 */
|
||||
u32 reserved2; /* INTR + 0x34 */
|
||||
u32 per_error; /* INTR + 0x38 */
|
||||
};
|
||||
|
||||
/* Memory Mapping Control */
|
||||
struct mpc52xx_mmap_ctl {
|
||||
u32 mbar; /* MMAP_CTRL + 0x00 */
|
||||
|
||||
u32 cs0_start; /* MMAP_CTRL + 0x04 */
|
||||
u32 cs0_stop; /* MMAP_CTRL + 0x08 */
|
||||
u32 cs1_start; /* MMAP_CTRL + 0x0c */
|
||||
u32 cs1_stop; /* MMAP_CTRL + 0x10 */
|
||||
u32 cs2_start; /* MMAP_CTRL + 0x14 */
|
||||
u32 cs2_stop; /* MMAP_CTRL + 0x18 */
|
||||
u32 cs3_start; /* MMAP_CTRL + 0x1c */
|
||||
u32 cs3_stop; /* MMAP_CTRL + 0x20 */
|
||||
u32 cs4_start; /* MMAP_CTRL + 0x24 */
|
||||
u32 cs4_stop; /* MMAP_CTRL + 0x28 */
|
||||
u32 cs5_start; /* MMAP_CTRL + 0x2c */
|
||||
u32 cs5_stop; /* MMAP_CTRL + 0x30 */
|
||||
|
||||
u32 sdram0; /* MMAP_CTRL + 0x34 */
|
||||
u32 sdram1; /* MMAP_CTRL + 0X38 */
|
||||
|
||||
u32 reserved[4]; /* MMAP_CTRL + 0x3c .. 0x48 */
|
||||
|
||||
u32 boot_start; /* MMAP_CTRL + 0x4c */
|
||||
u32 boot_stop; /* MMAP_CTRL + 0x50 */
|
||||
|
||||
u32 ipbi_ws_ctrl; /* MMAP_CTRL + 0x54 */
|
||||
|
||||
u32 cs6_start; /* MMAP_CTRL + 0x58 */
|
||||
u32 cs6_stop; /* MMAP_CTRL + 0x5c */
|
||||
u32 cs7_start; /* MMAP_CTRL + 0x60 */
|
||||
u32 cs7_stop; /* MMAP_CTRL + 0x64 */
|
||||
};
|
||||
|
||||
/* SDRAM control */
|
||||
struct mpc52xx_sdram {
|
||||
u32 mode; /* SDRAM + 0x00 */
|
||||
u32 ctrl; /* SDRAM + 0x04 */
|
||||
u32 config1; /* SDRAM + 0x08 */
|
||||
u32 config2; /* SDRAM + 0x0c */
|
||||
};
|
||||
|
||||
/* SDMA */
|
||||
struct mpc52xx_sdma {
|
||||
u32 taskBar; /* SDMA + 0x00 */
|
||||
u32 currentPointer; /* SDMA + 0x04 */
|
||||
u32 endPointer; /* SDMA + 0x08 */
|
||||
u32 variablePointer; /* SDMA + 0x0c */
|
||||
|
||||
u8 IntVect1; /* SDMA + 0x10 */
|
||||
u8 IntVect2; /* SDMA + 0x11 */
|
||||
u16 PtdCntrl; /* SDMA + 0x12 */
|
||||
|
||||
u32 IntPend; /* SDMA + 0x14 */
|
||||
u32 IntMask; /* SDMA + 0x18 */
|
||||
|
||||
u16 tcr[16]; /* SDMA + 0x1c .. 0x3a */
|
||||
|
||||
u8 ipr[32]; /* SDMA + 0x3c .. 0x5b */
|
||||
|
||||
u32 cReqSelect; /* SDMA + 0x5c */
|
||||
u32 task_size0; /* SDMA + 0x60 */
|
||||
u32 task_size1; /* SDMA + 0x64 */
|
||||
u32 MDEDebug; /* SDMA + 0x68 */
|
||||
u32 ADSDebug; /* SDMA + 0x6c */
|
||||
u32 Value1; /* SDMA + 0x70 */
|
||||
u32 Value2; /* SDMA + 0x74 */
|
||||
u32 Control; /* SDMA + 0x78 */
|
||||
u32 Status; /* SDMA + 0x7c */
|
||||
u32 PTDDebug; /* SDMA + 0x80 */
|
||||
};
|
||||
|
||||
/* GPT */
|
||||
struct mpc52xx_gpt {
|
||||
u32 mode; /* GPTx + 0x00 */
|
||||
u32 count; /* GPTx + 0x04 */
|
||||
u32 pwm; /* GPTx + 0x08 */
|
||||
u32 status; /* GPTx + 0X0c */
|
||||
};
|
||||
|
||||
/* GPIO */
|
||||
struct mpc52xx_gpio {
|
||||
u32 port_config; /* GPIO + 0x00 */
|
||||
u32 simple_gpioe; /* GPIO + 0x04 */
|
||||
u32 simple_ode; /* GPIO + 0x08 */
|
||||
u32 simple_ddr; /* GPIO + 0x0c */
|
||||
u32 simple_dvo; /* GPIO + 0x10 */
|
||||
u32 simple_ival; /* GPIO + 0x14 */
|
||||
u8 outo_gpioe; /* GPIO + 0x18 */
|
||||
u8 reserved1[3]; /* GPIO + 0x19 */
|
||||
u8 outo_dvo; /* GPIO + 0x1c */
|
||||
u8 reserved2[3]; /* GPIO + 0x1d */
|
||||
u8 sint_gpioe; /* GPIO + 0x20 */
|
||||
u8 reserved3[3]; /* GPIO + 0x21 */
|
||||
u8 sint_ode; /* GPIO + 0x24 */
|
||||
u8 reserved4[3]; /* GPIO + 0x25 */
|
||||
u8 sint_ddr; /* GPIO + 0x28 */
|
||||
u8 reserved5[3]; /* GPIO + 0x29 */
|
||||
u8 sint_dvo; /* GPIO + 0x2c */
|
||||
u8 reserved6[3]; /* GPIO + 0x2d */
|
||||
u8 sint_inten; /* GPIO + 0x30 */
|
||||
u8 reserved7[3]; /* GPIO + 0x31 */
|
||||
u16 sint_itype; /* GPIO + 0x34 */
|
||||
u16 reserved8; /* GPIO + 0x36 */
|
||||
u8 gpio_control; /* GPIO + 0x38 */
|
||||
u8 reserved9[3]; /* GPIO + 0x39 */
|
||||
u8 sint_istat; /* GPIO + 0x3c */
|
||||
u8 sint_ival; /* GPIO + 0x3d */
|
||||
u8 bus_errs; /* GPIO + 0x3e */
|
||||
u8 reserved10; /* GPIO + 0x3f */
|
||||
};
|
||||
|
||||
#define MPC52xx_GPIO_PSC_CONFIG_UART_WITHOUT_CD 4
|
||||
#define MPC52xx_GPIO_PSC_CONFIG_UART_WITH_CD 5
|
||||
#define MPC52xx_GPIO_PCI_DIS (1<<15)
|
||||
|
||||
/* GPIO with WakeUp*/
|
||||
struct mpc52xx_gpio_wkup {
|
||||
u8 wkup_gpioe; /* GPIO_WKUP + 0x00 */
|
||||
u8 reserved1[3]; /* GPIO_WKUP + 0x03 */
|
||||
u8 wkup_ode; /* GPIO_WKUP + 0x04 */
|
||||
u8 reserved2[3]; /* GPIO_WKUP + 0x05 */
|
||||
u8 wkup_ddr; /* GPIO_WKUP + 0x08 */
|
||||
u8 reserved3[3]; /* GPIO_WKUP + 0x09 */
|
||||
u8 wkup_dvo; /* GPIO_WKUP + 0x0C */
|
||||
u8 reserved4[3]; /* GPIO_WKUP + 0x0D */
|
||||
u8 wkup_inten; /* GPIO_WKUP + 0x10 */
|
||||
u8 reserved5[3]; /* GPIO_WKUP + 0x11 */
|
||||
u8 wkup_iinten; /* GPIO_WKUP + 0x14 */
|
||||
u8 reserved6[3]; /* GPIO_WKUP + 0x15 */
|
||||
u16 wkup_itype; /* GPIO_WKUP + 0x18 */
|
||||
u8 reserved7[2]; /* GPIO_WKUP + 0x1A */
|
||||
u8 wkup_maste; /* GPIO_WKUP + 0x1C */
|
||||
u8 reserved8[3]; /* GPIO_WKUP + 0x1D */
|
||||
u8 wkup_ival; /* GPIO_WKUP + 0x20 */
|
||||
u8 reserved9[3]; /* GPIO_WKUP + 0x21 */
|
||||
u8 wkup_istat; /* GPIO_WKUP + 0x24 */
|
||||
u8 reserved10[3]; /* GPIO_WKUP + 0x25 */
|
||||
};
|
||||
|
||||
/* XLB Bus control */
|
||||
struct mpc52xx_xlb {
|
||||
u8 reserved[0x40];
|
||||
u32 config; /* XLB + 0x40 */
|
||||
u32 version; /* XLB + 0x44 */
|
||||
u32 status; /* XLB + 0x48 */
|
||||
u32 int_enable; /* XLB + 0x4c */
|
||||
u32 addr_capture; /* XLB + 0x50 */
|
||||
u32 bus_sig_capture; /* XLB + 0x54 */
|
||||
u32 addr_timeout; /* XLB + 0x58 */
|
||||
u32 data_timeout; /* XLB + 0x5c */
|
||||
u32 bus_act_timeout; /* XLB + 0x60 */
|
||||
u32 master_pri_enable; /* XLB + 0x64 */
|
||||
u32 master_priority; /* XLB + 0x68 */
|
||||
u32 base_address; /* XLB + 0x6c */
|
||||
u32 snoop_window; /* XLB + 0x70 */
|
||||
};
|
||||
|
||||
#define MPC52xx_XLB_CFG_PLDIS (1 << 31)
|
||||
#define MPC52xx_XLB_CFG_SNOOP (1 << 15)
|
||||
|
||||
/* Clock Distribution control */
|
||||
struct mpc52xx_cdm {
|
||||
u32 jtag_id; /* CDM + 0x00 reg0 read only */
|
||||
u32 rstcfg; /* CDM + 0x04 reg1 read only */
|
||||
u32 breadcrumb; /* CDM + 0x08 reg2 */
|
||||
|
||||
u8 mem_clk_sel; /* CDM + 0x0c reg3 byte0 */
|
||||
u8 xlb_clk_sel; /* CDM + 0x0d reg3 byte1 read only */
|
||||
u8 ipb_clk_sel; /* CDM + 0x0e reg3 byte2 */
|
||||
u8 pci_clk_sel; /* CDM + 0x0f reg3 byte3 */
|
||||
|
||||
u8 ext_48mhz_en; /* CDM + 0x10 reg4 byte0 */
|
||||
u8 fd_enable; /* CDM + 0x11 reg4 byte1 */
|
||||
u16 fd_counters; /* CDM + 0x12 reg4 byte2,3 */
|
||||
|
||||
u32 clk_enables; /* CDM + 0x14 reg5 */
|
||||
|
||||
u8 osc_disable; /* CDM + 0x18 reg6 byte0 */
|
||||
u8 reserved0[3]; /* CDM + 0x19 reg6 byte1,2,3 */
|
||||
|
||||
u8 ccs_sleep_enable; /* CDM + 0x1c reg7 byte0 */
|
||||
u8 osc_sleep_enable; /* CDM + 0x1d reg7 byte1 */
|
||||
u8 reserved1; /* CDM + 0x1e reg7 byte2 */
|
||||
u8 ccs_qreq_test; /* CDM + 0x1f reg7 byte3 */
|
||||
|
||||
u8 soft_reset; /* CDM + 0x20 u8 byte0 */
|
||||
u8 no_ckstp; /* CDM + 0x21 u8 byte0 */
|
||||
u8 reserved2[2]; /* CDM + 0x22 u8 byte1,2,3 */
|
||||
|
||||
u8 pll_lock; /* CDM + 0x24 reg9 byte0 */
|
||||
u8 pll_looselock; /* CDM + 0x25 reg9 byte1 */
|
||||
u8 pll_sm_lockwin; /* CDM + 0x26 reg9 byte2 */
|
||||
u8 reserved3; /* CDM + 0x27 reg9 byte3 */
|
||||
|
||||
u16 reserved4; /* CDM + 0x28 reg10 byte0,1 */
|
||||
u16 mclken_div_psc1; /* CDM + 0x2a reg10 byte2,3 */
|
||||
|
||||
u16 reserved5; /* CDM + 0x2c reg11 byte0,1 */
|
||||
u16 mclken_div_psc2; /* CDM + 0x2e reg11 byte2,3 */
|
||||
|
||||
u16 reserved6; /* CDM + 0x30 reg12 byte0,1 */
|
||||
u16 mclken_div_psc3; /* CDM + 0x32 reg12 byte2,3 */
|
||||
|
||||
u16 reserved7; /* CDM + 0x34 reg13 byte0,1 */
|
||||
u16 mclken_div_psc6; /* CDM + 0x36 reg13 byte2,3 */
|
||||
};
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
|
||||
|
||||
/* ========================================================================= */
|
||||
/* Prototypes for MPC52xx sysdev */
|
||||
/* ========================================================================= */
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
extern void mpc52xx_init_irq(void);
|
||||
extern unsigned int mpc52xx_get_irq(void);
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
|
||||
#endif /* __ASM_POWERPC_MPC52xx_H__ */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user