iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

sh: intc_sh5 depends on cayman board for IRQ priority table.

Browse Source 
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2008-04-25 16:08:37 +09:00
parent 105eabfd51
commit a1dc4b59fa
1 changed files with 37 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

71
arch/sh/kernel/cpu/irq/intc-sh5.c
View File

@ -184,9 +184,8 @@ int intc_irq_describe(char* p, int irq)
void __init plat_irq_setup(void)
{
unsigned long long __dummy0, __dummy1=~0x00000000100000f0;
unsigned long long __dummy0, __dummy1=~0x00000000100000f0;
unsigned long reg;
unsigned long data;
int i;
intc_virt = onchip_remap(INTC_BASE, 1024, "INTC");
@ -196,11 +195,8 @@ void __init plat_irq_setup(void)
/* Set default: per-line enable/disable, priority driven ack/eoi */
for (i = 0; i < NR_INTC_IRQS; i++) {
if (platform_int_priority[i] != NO_PRIORITY) {
irq_desc[i].chip = &intc_irq_type;
}
}
for (i = 0; i < NR_INTC_IRQS; i++)
irq_desc[i].chip = &intc_irq_type;
/* Disable all interrupts and set all priorities to 0 to avoid trouble */
@ -211,35 +207,42 @@ void __init plat_irq_setup(void)
ctrl_outl( NO_PRIORITY, reg);
/* Set IRLM */
/* If all the priorities are set to 'no priority', then
* assume we are using encoded mode.
*/
irlm = platform_int_priority[IRQ_IRL0] + platform_int_priority[IRQ_IRL1] + \
platform_int_priority[IRQ_IRL2] + platform_int_priority[IRQ_IRL3];
#ifdef CONFIG_SH_CAYMAN
{
unsigned long data;
if (irlm == NO_PRIORITY) {
/* IRLM = 0 */
reg = INTC_ICR_CLEAR;
i = IRQ_INTA;
printk("Trying to use encoded IRL0-3. IRLs unsupported.\n");
} else {
/* IRLM = 1 */
reg = INTC_ICR_SET;
i = IRQ_IRL0;
}
ctrl_outl(INTC_ICR_IRLM, reg);
/* Set interrupt priorities according to platform description */
for (data = 0, reg = INTC_INTPRI_0; i < NR_INTC_IRQS; i++) {
data |= platform_int_priority[i] << ((i % INTC_INTPRI_PPREG) * 4);
if ((i % INTC_INTPRI_PPREG) == (INTC_INTPRI_PPREG - 1)) {
/* Upon the 7th, set Priority Register */
ctrl_outl(data, reg);
data = 0;
reg += 8;
/* Set IRLM */
/* If all the priorities are set to 'no priority', then
* assume we are using encoded mode.
*/
irlm = platform_int_priority[IRQ_IRL0] +
platform_int_priority[IRQ_IRL1] +
platform_int_priority[IRQ_IRL2] +
platform_int_priority[IRQ_IRL3];
if (irlm == NO_PRIORITY) {
/* IRLM = 0 */
reg = INTC_ICR_CLEAR;
i = IRQ_INTA;
printk("Trying to use encoded IRL0-3. IRLs unsupported.\n");
} else {
/* IRLM = 1 */
reg = INTC_ICR_SET;
i = IRQ_IRL0;
}
}
ctrl_outl(INTC_ICR_IRLM, reg);
/* Set interrupt priorities according to platform description */
for (data = 0, reg = INTC_INTPRI_0; i < NR_INTC_IRQS; i++) {
data |= platform_int_priority[i] <<
((i % INTC_INTPRI_PPREG) * 4);
if ((i % INTC_INTPRI_PPREG) == (INTC_INTPRI_PPREG - 1)) {
/* Upon the 7th, set Priority Register */
ctrl_outl(data, reg);
data = 0;
reg += 8;
}
}
#endif
/*
* And now let interrupts come in.