-/*
- * Forwad definitions for all pic's
- */
-
-static void tx4927_irq_cp0_enable(unsigned int irq);
-static void tx4927_irq_cp0_disable(unsigned int irq);
-
-static void tx4927_irq_pic_enable(unsigned int irq);
-static void tx4927_irq_pic_disable(unsigned int irq);
-
-/*
- * Kernel structs for all pic's
- */
-
-#define TX4927_CP0_NAME "TX4927-CP0"
-static struct irq_chip tx4927_irq_cp0_type = {
- .name = TX4927_CP0_NAME,
- .ack = tx4927_irq_cp0_disable,
- .mask = tx4927_irq_cp0_disable,
- .mask_ack = tx4927_irq_cp0_disable,
- .unmask = tx4927_irq_cp0_enable,
-};
-
-#define TX4927_PIC_NAME "TX4927-PIC"
-static struct irq_chip tx4927_irq_pic_type = {
- .name = TX4927_PIC_NAME,
- .ack = tx4927_irq_pic_disable,
- .mask = tx4927_irq_pic_disable,
- .mask_ack = tx4927_irq_pic_disable,
- .unmask = tx4927_irq_pic_enable,
-};
-
-#define TX4927_PIC_ACTION(s) { no_action, 0, CPU_MASK_NONE, s, NULL, NULL }
-static struct irqaction tx4927_irq_pic_action =
-TX4927_PIC_ACTION(TX4927_PIC_NAME);
-
-#define CCP0_STATUS 12
-#define CCP0_CAUSE 13
-
-/*
- * Functions for cp0
- */
-
-#define tx4927_irq_cp0_mask(irq) ( 1 << ( irq-TX4927_IRQ_CP0_BEG+8 ) )
-
-static void
-tx4927_irq_cp0_modify(unsigned cp0_reg, unsigned clr_bits, unsigned set_bits)
-{
- unsigned long val = 0;
-
- switch (cp0_reg) {
- case CCP0_STATUS:
- val = read_c0_status();
- break;
-
- case CCP0_CAUSE:
- val = read_c0_cause();
- break;
-
- }
-
- val &= (~clr_bits);
- val |= (set_bits);
-
- switch (cp0_reg) {
- case CCP0_STATUS:{
- write_c0_status(val);
- break;
- }
- case CCP0_CAUSE:{
- write_c0_cause(val);
- break;
- }
- }
-}
-
-static void __init tx4927_irq_cp0_init(void)
-{
- int i;
-
- TX4927_IRQ_DPRINTK(TX4927_IRQ_CP0_INIT, "beg=%d end=%d\n",
- TX4927_IRQ_CP0_BEG, TX4927_IRQ_CP0_END);
-
- for (i = TX4927_IRQ_CP0_BEG; i <= TX4927_IRQ_CP0_END; i++)
- set_irq_chip_and_handler(i, &tx4927_irq_cp0_type,
- handle_level_irq);
-}
-
-static void tx4927_irq_cp0_enable(unsigned int irq)
-{
- TX4927_IRQ_DPRINTK(TX4927_IRQ_CP0_ENABLE, "irq=%d \n", irq);
-
- tx4927_irq_cp0_modify(CCP0_STATUS, 0, tx4927_irq_cp0_mask(irq));
-}
-
-static void tx4927_irq_cp0_disable(unsigned int irq)
-{
- TX4927_IRQ_DPRINTK(TX4927_IRQ_CP0_DISABLE, "irq=%d \n", irq);
-
- tx4927_irq_cp0_modify(CCP0_STATUS, tx4927_irq_cp0_mask(irq), 0);
-}
-
-/*
- * Functions for pic
- */
-u32 tx4927_irq_pic_addr(int irq)
-{
- /* MVMCP -- need to formulize this */
- irq -= TX4927_IRQ_PIC_BEG;
- switch (irq) {
- case 17:
- case 16:
- case 1:
- case 0:
- return (0xff1ff610);
-
- case 19:
- case 18:
- case 3:
- case 2:
- return (0xff1ff614);
-
- case 21:
- case 20:
- case 5:
- case 4:
- return (0xff1ff618);
-
- case 23:
- case 22:
- case 7:
- case 6:
- return (0xff1ff61c);
-
- case 25:
- case 24:
- case 9:
- case 8:
- return (0xff1ff620);
-
- case 27:
- case 26:
- case 11:
- case 10:
- return (0xff1ff624);
-
- case 29:
- case 28:
- case 13:
- case 12:
- return (0xff1ff628);
-
- case 31:
- case 30:
- case 15:
- case 14:
- return (0xff1ff62c);
-
- }
- return (0);
-}
-
-u32 tx4927_irq_pic_mask(int irq)
-{
- /* MVMCP -- need to formulize this */
- irq -= TX4927_IRQ_PIC_BEG;
- switch (irq) {
- case 31:
- case 29:
- case 27:
- case 25:
- case 23:
- case 21:
- case 19:
- case 17:{
- return (0x07000000);
- }
- case 30:
- case 28:
- case 26:
- case 24:
- case 22:
- case 20:
- case 18:
- case 16:{
- return (0x00070000);
- }
- case 15:
- case 13:
- case 11:
- case 9:
- case 7:
- case 5:
- case 3:
- case 1:{
- return (0x00000700);
- }
- case 14:
- case 12:
- case 10:
- case 8:
- case 6:
- case 4:
- case 2:
- case 0:{
- return (0x00000007);
- }
- }
- return (0x00000000);
-}
-
-static void tx4927_irq_pic_modify(unsigned pic_reg, unsigned clr_bits,
- unsigned set_bits)
-{
- unsigned long val = 0;
-
- val = TX4927_RD(pic_reg);
- val &= (~clr_bits);
- val |= (set_bits);
- TX4927_WR(pic_reg, val);
-}
-
-static void __init tx4927_irq_pic_init(void)
-{
- int i;
-
- TX4927_IRQ_DPRINTK(TX4927_IRQ_PIC_INIT, "beg=%d end=%d\n",
- TX4927_IRQ_PIC_BEG, TX4927_IRQ_PIC_END);
-
- for (i = TX4927_IRQ_PIC_BEG; i <= TX4927_IRQ_PIC_END; i++)
- set_irq_chip_and_handler(i, &tx4927_irq_pic_type,
- handle_level_irq);
-
- setup_irq(TX4927_IRQ_NEST_PIC_ON_CP0, &tx4927_irq_pic_action);
-
- TX4927_WR(0xff1ff640, 0x6); /* irq level mask -- only accept hightest */
- TX4927_WR(0xff1ff600, TX4927_RD(0xff1ff600) | 0x1); /* irq enable */
-}
-
-static void tx4927_irq_pic_enable(unsigned int irq)
-{
- TX4927_IRQ_DPRINTK(TX4927_IRQ_PIC_ENABLE, "irq=%d\n", irq);
-
- tx4927_irq_pic_modify(tx4927_irq_pic_addr(irq), 0,
- tx4927_irq_pic_mask(irq));
-}
-
-static void tx4927_irq_pic_disable(unsigned int irq)
-{
- TX4927_IRQ_DPRINTK(TX4927_IRQ_PIC_DISABLE, "irq=%d\n", irq);
-
- tx4927_irq_pic_modify(tx4927_irq_pic_addr(irq),
- tx4927_irq_pic_mask(irq), 0);
-}
-
-/*
- * Main init functions
- */