sh: remove support for sh7300 and solution engine 7300

[deliverable/linux.git] / arch / sh / kernel / cpu / irq / ipr.c

diff --git a/arch/sh/kernel/cpu/irq/ipr.c b/arch/sh/kernel/cpu/irq/ipr.c
index 210280b6fddfdb5484ef472a2307cf54d7363a23..5da325414880abb50f68231cb001a80888cf7517 100644 (file)
--- a/arch/sh/kernel/cpu/irq/ipr.c
+++ b/arch/sh/kernel/cpu/irq/ipr.c
@@ -8,7 +8,7 @@
  *
  * Supported system:
  *     On-chip supporting modules (TMU, RTC, etc.).
- *     On-chip supporting modules for SH7709/SH7709A/SH7729/SH7300.
+ *     On-chip supporting modules for SH7709/SH7709A/SH7729.
  *     Hitachi SolutionEngine external I/O:
  *             MS7709SE01, MS7709ASE01, and MS7750SE01
  *
@@ -22,58 +22,57 @@
 #include <linux/io.h>
 #include <linux/interrupt.h>
 
+static inline struct ipr_desc *get_ipr_desc(unsigned int irq)
+{
+       struct irq_chip *chip = get_irq_chip(irq);
+       return (void *)((char *)chip - offsetof(struct ipr_desc, chip));
+}
+
 static void disable_ipr_irq(unsigned int irq)
 {
        struct ipr_data *p = get_irq_chip_data(irq);
+       unsigned long addr = get_ipr_desc(irq)->ipr_offsets[p->ipr_idx];
        /* Set the priority in IPR to 0 */
-       ctrl_outw(ctrl_inw(p->addr) & (0xffff ^ (0xf << p->shift)), p->addr);
+       ctrl_outw(ctrl_inw(addr) & (0xffff ^ (0xf << p->shift)), addr);
 }
 
 static void enable_ipr_irq(unsigned int irq)
 {
        struct ipr_data *p = get_irq_chip_data(irq);
+       unsigned long addr = get_ipr_desc(irq)->ipr_offsets[p->ipr_idx];
        /* Set priority in IPR back to original value */
-       ctrl_outw(ctrl_inw(p->addr) | (p->priority << p->shift), p->addr);
+       ctrl_outw(ctrl_inw(addr) | (p->priority << p->shift), addr);
 }
 
-static struct irq_chip ipr_irq_chip = {
-       .name           = "IPR",
-       .mask           = disable_ipr_irq,
-       .unmask         = enable_ipr_irq,
-       .mask_ack       = disable_ipr_irq,
-};
-
-unsigned int map_ipridx_to_addr(int idx) __attribute__ ((weak));
-unsigned int map_ipridx_to_addr(int idx)
-{
-       return 0;
-}
+/*
+ * The shift value is now the number of bits to shift, not the number of
+ * bits/4. This is to make it easier to read the value directly from the
+ * datasheets. The IPR address is calculated using the ipr_offset table.
+ */
 
-void make_ipr_irq(struct ipr_data *table, unsigned int nr_irqs)
+void register_ipr_controller(struct ipr_desc *desc)
 {
        int i;
 
-       for (i = 0; i < nr_irqs; i++) {
-               unsigned int irq = table[i].irq;
+       desc->chip.mask = disable_ipr_irq;
+       desc->chip.unmask = enable_ipr_irq;
+       desc->chip.mask_ack = disable_ipr_irq;
 
-               if (!irq)
-                       irq = table[i].irq = i;
+       for (i = 0; i < desc->nr_irqs; i++) {
+               struct ipr_data *p = desc->ipr_data + i;
 
-               /* could the IPR index be mapped, if not we ignore this */
-               if (!table[i].addr) {
-                       table[i].addr = map_ipridx_to_addr(table[i].ipr_idx);
-                       if (!table[i].addr)
-                               continue;
-               }
+               BUG_ON(p->ipr_idx >= desc->nr_offsets);
+               BUG_ON(!desc->ipr_offsets[p->ipr_idx]);
 
-               disable_irq_nosync(irq);
-               set_irq_chip_and_handler_name(irq, &ipr_irq_chip,
+               disable_irq_nosync(p->irq);
+               set_irq_chip_and_handler_name(p->irq, &desc->chip,
                                      handle_level_irq, "level");
-               set_irq_chip_data(irq, &table[i]);
-               enable_ipr_irq(irq);
+               set_irq_chip_data(p->irq, p);
+               disable_ipr_irq(p->irq);
        }
 }
-EXPORT_SYMBOL(make_ipr_irq);
+
+EXPORT_SYMBOL(register_ipr_controller);
 
 #if !defined(CONFIG_CPU_HAS_PINT_IRQ)
 int ipr_irq_demux(int irq)