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Diffstat (limited to 'arch/mips/alchemy/common/irq.c')
-rw-r--r--arch/mips/alchemy/common/irq.c875
1 files changed, 613 insertions, 262 deletions
diff --git a/arch/mips/alchemy/common/irq.c b/arch/mips/alchemy/common/irq.c
index 8b60ba0675e2..94fbcd19eb9c 100644
--- a/arch/mips/alchemy/common/irq.c
+++ b/arch/mips/alchemy/common/irq.c
@@ -25,19 +25,15 @@
25 * 675 Mass Ave, Cambridge, MA 02139, USA. 25 * 675 Mass Ave, Cambridge, MA 02139, USA.
26 */ 26 */
27 27
28#include <linux/bitops.h> 28#include <linux/export.h>
29#include <linux/init.h> 29#include <linux/init.h>
30#include <linux/interrupt.h> 30#include <linux/interrupt.h>
31#include <linux/irq.h>
32#include <linux/slab.h> 31#include <linux/slab.h>
33#include <linux/syscore_ops.h> 32#include <linux/syscore_ops.h>
34 33
35#include <asm/irq_cpu.h> 34#include <asm/irq_cpu.h>
36#include <asm/mipsregs.h>
37#include <asm/mach-au1x00/au1000.h> 35#include <asm/mach-au1x00/au1000.h>
38#ifdef CONFIG_MIPS_PB1000 36#include <asm/mach-au1x00/gpio-au1300.h>
39#include <asm/mach-pb1x00/pb1000.h>
40#endif
41 37
42/* Interrupt Controller register offsets */ 38/* Interrupt Controller register offsets */
43#define IC_CFG0RD 0x40 39#define IC_CFG0RD 0x40
@@ -69,7 +65,17 @@
69#define IC_FALLINGCLR 0x7C 65#define IC_FALLINGCLR 0x7C
70#define IC_TESTBIT 0x80 66#define IC_TESTBIT 0x80
71 67
72static int au1x_ic_settype(struct irq_data *d, unsigned int flow_type); 68/* per-processor fixed function irqs */
69struct alchemy_irqmap {
70 int irq; /* linux IRQ number */
71 int type; /* IRQ_TYPE_ */
72 int prio; /* irq priority, 0 highest, 3 lowest */
73 int internal; /* GPIC: internal source (no ext. pin)? */
74};
75
76static int au1x_ic_settype(struct irq_data *d, unsigned int type);
77static int au1300_gpic_settype(struct irq_data *d, unsigned int type);
78
73 79
74/* NOTE on interrupt priorities: The original writers of this code said: 80/* NOTE on interrupt priorities: The original writers of this code said:
75 * 81 *
@@ -77,176 +83,207 @@ static int au1x_ic_settype(struct irq_data *d, unsigned int flow_type);
77 * the USB devices-side packet complete interrupt (USB_DEV_REQ_INT) 83 * the USB devices-side packet complete interrupt (USB_DEV_REQ_INT)
78 * needs the highest priority. 84 * needs the highest priority.
79 */ 85 */
80 86struct alchemy_irqmap au1000_irqmap[] __initdata = {
81/* per-processor fixed function irqs */ 87 { AU1000_UART0_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
82struct au1xxx_irqmap { 88 { AU1000_UART1_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
83 int im_irq; 89 { AU1000_UART2_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
84 int im_type; 90 { AU1000_UART3_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
85 int im_request; /* set 1 to get higher priority */ 91 { AU1000_SSI0_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
92 { AU1000_SSI1_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
93 { AU1000_DMA_INT_BASE, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
94 { AU1000_DMA_INT_BASE+1, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
95 { AU1000_DMA_INT_BASE+2, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
96 { AU1000_DMA_INT_BASE+3, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
97 { AU1000_DMA_INT_BASE+4, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
98 { AU1000_DMA_INT_BASE+5, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
99 { AU1000_DMA_INT_BASE+6, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
100 { AU1000_DMA_INT_BASE+7, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
101 { AU1000_TOY_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
102 { AU1000_TOY_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
103 { AU1000_TOY_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
104 { AU1000_TOY_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
105 { AU1000_RTC_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
106 { AU1000_RTC_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
107 { AU1000_RTC_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
108 { AU1000_RTC_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 0, 0 },
109 { AU1000_IRDA_TX_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
110 { AU1000_IRDA_RX_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
111 { AU1000_USB_DEV_REQ_INT, IRQ_TYPE_LEVEL_HIGH, 0, 0 },
112 { AU1000_USB_DEV_SUS_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
113 { AU1000_USB_HOST_INT, IRQ_TYPE_LEVEL_LOW, 1, 0 },
114 { AU1000_ACSYNC_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
115 { AU1000_MAC0_DMA_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
116 { AU1000_MAC1_DMA_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
117 { AU1000_AC97C_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
118 { -1, },
86}; 119};
87 120
88struct au1xxx_irqmap au1000_irqmap[] __initdata = { 121struct alchemy_irqmap au1500_irqmap[] __initdata = {
89 { AU1000_UART0_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 122 { AU1500_UART0_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
90 { AU1000_UART1_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 123 { AU1500_PCI_INTA, IRQ_TYPE_LEVEL_LOW, 1, 0 },
91 { AU1000_UART2_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 124 { AU1500_PCI_INTB, IRQ_TYPE_LEVEL_LOW, 1, 0 },
92 { AU1000_UART3_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 125 { AU1500_UART3_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
93 { AU1000_SSI0_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 126 { AU1500_PCI_INTC, IRQ_TYPE_LEVEL_LOW, 1, 0 },
94 { AU1000_SSI1_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 127 { AU1500_PCI_INTD, IRQ_TYPE_LEVEL_LOW, 1, 0 },
95 { AU1000_DMA_INT_BASE, IRQ_TYPE_LEVEL_HIGH, 0 }, 128 { AU1500_DMA_INT_BASE, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
96 { AU1000_DMA_INT_BASE+1, IRQ_TYPE_LEVEL_HIGH, 0 }, 129 { AU1500_DMA_INT_BASE+1, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
97 { AU1000_DMA_INT_BASE+2, IRQ_TYPE_LEVEL_HIGH, 0 }, 130 { AU1500_DMA_INT_BASE+2, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
98 { AU1000_DMA_INT_BASE+3, IRQ_TYPE_LEVEL_HIGH, 0 }, 131 { AU1500_DMA_INT_BASE+3, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
99 { AU1000_DMA_INT_BASE+4, IRQ_TYPE_LEVEL_HIGH, 0 }, 132 { AU1500_DMA_INT_BASE+4, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
100 { AU1000_DMA_INT_BASE+5, IRQ_TYPE_LEVEL_HIGH, 0 }, 133 { AU1500_DMA_INT_BASE+5, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
101 { AU1000_DMA_INT_BASE+6, IRQ_TYPE_LEVEL_HIGH, 0 }, 134 { AU1500_DMA_INT_BASE+6, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
102 { AU1000_DMA_INT_BASE+7, IRQ_TYPE_LEVEL_HIGH, 0 }, 135 { AU1500_DMA_INT_BASE+7, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
103 { AU1000_TOY_INT, IRQ_TYPE_EDGE_RISING, 0 }, 136 { AU1500_TOY_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
104 { AU1000_TOY_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 0 }, 137 { AU1500_TOY_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
105 { AU1000_TOY_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 0 }, 138 { AU1500_TOY_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
106 { AU1000_TOY_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 0 }, 139 { AU1500_TOY_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
107 { AU1000_RTC_INT, IRQ_TYPE_EDGE_RISING, 0 }, 140 { AU1500_RTC_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
108 { AU1000_RTC_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 0 }, 141 { AU1500_RTC_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
109 { AU1000_RTC_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 0 }, 142 { AU1500_RTC_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
110 { AU1000_RTC_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 1 }, 143 { AU1500_RTC_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 0, 0 },
111 { AU1000_IRDA_TX_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 144 { AU1500_USB_DEV_REQ_INT, IRQ_TYPE_LEVEL_HIGH, 0, 0 },
112 { AU1000_IRDA_RX_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 145 { AU1500_USB_DEV_SUS_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
113 { AU1000_USB_DEV_REQ_INT, IRQ_TYPE_LEVEL_HIGH, 1 }, 146 { AU1500_USB_HOST_INT, IRQ_TYPE_LEVEL_LOW, 1, 0 },
114 { AU1000_USB_DEV_SUS_INT, IRQ_TYPE_EDGE_RISING, 0 }, 147 { AU1500_ACSYNC_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
115 { AU1000_USB_HOST_INT, IRQ_TYPE_LEVEL_LOW, 0 }, 148 { AU1500_MAC0_DMA_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
116 { AU1000_ACSYNC_INT, IRQ_TYPE_EDGE_RISING, 0 }, 149 { AU1500_MAC1_DMA_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
117 { AU1000_MAC0_DMA_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 150 { AU1500_AC97C_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
118 { AU1000_MAC1_DMA_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
119 { AU1000_AC97C_INT, IRQ_TYPE_EDGE_RISING, 0 },
120 { -1, }, 151 { -1, },
121}; 152};
122 153
123struct au1xxx_irqmap au1500_irqmap[] __initdata = { 154struct alchemy_irqmap au1100_irqmap[] __initdata = {
124 { AU1500_UART0_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 155 { AU1100_UART0_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
125 { AU1500_PCI_INTA, IRQ_TYPE_LEVEL_LOW, 0 }, 156 { AU1100_UART1_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
126 { AU1500_PCI_INTB, IRQ_TYPE_LEVEL_LOW, 0 }, 157 { AU1100_SD_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
127 { AU1500_UART3_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 158 { AU1100_UART3_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
128 { AU1500_PCI_INTC, IRQ_TYPE_LEVEL_LOW, 0 }, 159 { AU1100_SSI0_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
129 { AU1500_PCI_INTD, IRQ_TYPE_LEVEL_LOW, 0 }, 160 { AU1100_SSI1_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
130 { AU1500_DMA_INT_BASE, IRQ_TYPE_LEVEL_HIGH, 0 }, 161 { AU1100_DMA_INT_BASE, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
131 { AU1500_DMA_INT_BASE+1, IRQ_TYPE_LEVEL_HIGH, 0 }, 162 { AU1100_DMA_INT_BASE+1, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
132 { AU1500_DMA_INT_BASE+2, IRQ_TYPE_LEVEL_HIGH, 0 }, 163 { AU1100_DMA_INT_BASE+2, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
133 { AU1500_DMA_INT_BASE+3, IRQ_TYPE_LEVEL_HIGH, 0 }, 164 { AU1100_DMA_INT_BASE+3, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
134 { AU1500_DMA_INT_BASE+4, IRQ_TYPE_LEVEL_HIGH, 0 }, 165 { AU1100_DMA_INT_BASE+4, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
135 { AU1500_DMA_INT_BASE+5, IRQ_TYPE_LEVEL_HIGH, 0 }, 166 { AU1100_DMA_INT_BASE+5, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
136 { AU1500_DMA_INT_BASE+6, IRQ_TYPE_LEVEL_HIGH, 0 }, 167 { AU1100_DMA_INT_BASE+6, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
137 { AU1500_DMA_INT_BASE+7, IRQ_TYPE_LEVEL_HIGH, 0 }, 168 { AU1100_DMA_INT_BASE+7, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
138 { AU1500_TOY_INT, IRQ_TYPE_EDGE_RISING, 0 }, 169 { AU1100_TOY_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
139 { AU1500_TOY_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 0 }, 170 { AU1100_TOY_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
140 { AU1500_TOY_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 0 }, 171 { AU1100_TOY_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
141 { AU1500_TOY_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 0 }, 172 { AU1100_TOY_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
142 { AU1500_RTC_INT, IRQ_TYPE_EDGE_RISING, 0 }, 173 { AU1100_RTC_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
143 { AU1500_RTC_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 0 }, 174 { AU1100_RTC_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
144 { AU1500_RTC_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 0 }, 175 { AU1100_RTC_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
145 { AU1500_RTC_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 1 }, 176 { AU1100_RTC_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 0, 0 },
146 { AU1500_USB_DEV_REQ_INT, IRQ_TYPE_LEVEL_HIGH, 1 }, 177 { AU1100_IRDA_TX_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
147 { AU1500_USB_DEV_SUS_INT, IRQ_TYPE_EDGE_RISING, 0 }, 178 { AU1100_IRDA_RX_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
148 { AU1500_USB_HOST_INT, IRQ_TYPE_LEVEL_LOW, 0 }, 179 { AU1100_USB_DEV_REQ_INT, IRQ_TYPE_LEVEL_HIGH, 0, 0 },
149 { AU1500_ACSYNC_INT, IRQ_TYPE_EDGE_RISING, 0 }, 180 { AU1100_USB_DEV_SUS_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
150 { AU1500_MAC0_DMA_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 181 { AU1100_USB_HOST_INT, IRQ_TYPE_LEVEL_LOW, 1, 0 },
151 { AU1500_MAC1_DMA_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 182 { AU1100_ACSYNC_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
152 { AU1500_AC97C_INT, IRQ_TYPE_EDGE_RISING, 0 }, 183 { AU1100_MAC0_DMA_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
184 { AU1100_LCD_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
185 { AU1100_AC97C_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
153 { -1, }, 186 { -1, },
154}; 187};
155 188
156struct au1xxx_irqmap au1100_irqmap[] __initdata = { 189struct alchemy_irqmap au1550_irqmap[] __initdata = {
157 { AU1100_UART0_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 190 { AU1550_UART0_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
158 { AU1100_UART1_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 191 { AU1550_PCI_INTA, IRQ_TYPE_LEVEL_LOW, 1, 0 },
159 { AU1100_SD_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 192 { AU1550_PCI_INTB, IRQ_TYPE_LEVEL_LOW, 1, 0 },
160 { AU1100_UART3_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 193 { AU1550_DDMA_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
161 { AU1100_SSI0_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 194 { AU1550_CRYPTO_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
162 { AU1100_SSI1_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 195 { AU1550_PCI_INTC, IRQ_TYPE_LEVEL_LOW, 1, 0 },
163 { AU1100_DMA_INT_BASE, IRQ_TYPE_LEVEL_HIGH, 0 }, 196 { AU1550_PCI_INTD, IRQ_TYPE_LEVEL_LOW, 1, 0 },
164 { AU1100_DMA_INT_BASE+1, IRQ_TYPE_LEVEL_HIGH, 0 }, 197 { AU1550_PCI_RST_INT, IRQ_TYPE_LEVEL_LOW, 1, 0 },
165 { AU1100_DMA_INT_BASE+2, IRQ_TYPE_LEVEL_HIGH, 0 }, 198 { AU1550_UART1_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
166 { AU1100_DMA_INT_BASE+3, IRQ_TYPE_LEVEL_HIGH, 0 }, 199 { AU1550_UART3_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
167 { AU1100_DMA_INT_BASE+4, IRQ_TYPE_LEVEL_HIGH, 0 }, 200 { AU1550_PSC0_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
168 { AU1100_DMA_INT_BASE+5, IRQ_TYPE_LEVEL_HIGH, 0 }, 201 { AU1550_PSC1_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
169 { AU1100_DMA_INT_BASE+6, IRQ_TYPE_LEVEL_HIGH, 0 }, 202 { AU1550_PSC2_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
170 { AU1100_DMA_INT_BASE+7, IRQ_TYPE_LEVEL_HIGH, 0 }, 203 { AU1550_PSC3_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
171 { AU1100_TOY_INT, IRQ_TYPE_EDGE_RISING, 0 }, 204 { AU1550_TOY_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
172 { AU1100_TOY_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 0 }, 205 { AU1550_TOY_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
173 { AU1100_TOY_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 0 }, 206 { AU1550_TOY_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
174 { AU1100_TOY_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 0 }, 207 { AU1550_TOY_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
175 { AU1100_RTC_INT, IRQ_TYPE_EDGE_RISING, 0 }, 208 { AU1550_RTC_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
176 { AU1100_RTC_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 0 }, 209 { AU1550_RTC_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
177 { AU1100_RTC_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 0 }, 210 { AU1550_RTC_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
178 { AU1100_RTC_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 1 }, 211 { AU1550_RTC_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 0, 0 },
179 { AU1100_IRDA_TX_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 212 { AU1550_NAND_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
180 { AU1100_IRDA_RX_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 213 { AU1550_USB_DEV_REQ_INT, IRQ_TYPE_LEVEL_HIGH, 0, 0 },
181 { AU1100_USB_DEV_REQ_INT, IRQ_TYPE_LEVEL_HIGH, 1 }, 214 { AU1550_USB_DEV_SUS_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
182 { AU1100_USB_DEV_SUS_INT, IRQ_TYPE_EDGE_RISING, 0 }, 215 { AU1550_USB_HOST_INT, IRQ_TYPE_LEVEL_LOW, 1, 0 },
183 { AU1100_USB_HOST_INT, IRQ_TYPE_LEVEL_LOW, 0 }, 216 { AU1550_MAC0_DMA_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
184 { AU1100_ACSYNC_INT, IRQ_TYPE_EDGE_RISING, 0 }, 217 { AU1550_MAC1_DMA_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
185 { AU1100_MAC0_DMA_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
186 { AU1100_LCD_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
187 { AU1100_AC97C_INT, IRQ_TYPE_EDGE_RISING, 0 },
188 { -1, }, 218 { -1, },
189}; 219};
190 220
191struct au1xxx_irqmap au1550_irqmap[] __initdata = { 221struct alchemy_irqmap au1200_irqmap[] __initdata = {
192 { AU1550_UART0_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 222 { AU1200_UART0_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
193 { AU1550_PCI_INTA, IRQ_TYPE_LEVEL_LOW, 0 }, 223 { AU1200_SWT_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
194 { AU1550_PCI_INTB, IRQ_TYPE_LEVEL_LOW, 0 }, 224 { AU1200_SD_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
195 { AU1550_DDMA_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 225 { AU1200_DDMA_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
196 { AU1550_CRYPTO_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 226 { AU1200_MAE_BE_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
197 { AU1550_PCI_INTC, IRQ_TYPE_LEVEL_LOW, 0 }, 227 { AU1200_UART1_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
198 { AU1550_PCI_INTD, IRQ_TYPE_LEVEL_LOW, 0 }, 228 { AU1200_MAE_FE_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
199 { AU1550_PCI_RST_INT, IRQ_TYPE_LEVEL_LOW, 0 }, 229 { AU1200_PSC0_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
200 { AU1550_UART1_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 230 { AU1200_PSC1_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
201 { AU1550_UART3_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 231 { AU1200_AES_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
202 { AU1550_PSC0_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 232 { AU1200_CAMERA_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
203 { AU1550_PSC1_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 233 { AU1200_TOY_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
204 { AU1550_PSC2_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 234 { AU1200_TOY_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
205 { AU1550_PSC3_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 235 { AU1200_TOY_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
206 { AU1550_TOY_INT, IRQ_TYPE_EDGE_RISING, 0 }, 236 { AU1200_TOY_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
207 { AU1550_TOY_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 0 }, 237 { AU1200_RTC_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
208 { AU1550_TOY_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 0 }, 238 { AU1200_RTC_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
209 { AU1550_TOY_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 0 }, 239 { AU1200_RTC_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
210 { AU1550_RTC_INT, IRQ_TYPE_EDGE_RISING, 0 }, 240 { AU1200_RTC_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 0, 0 },
211 { AU1550_RTC_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 0 }, 241 { AU1200_NAND_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
212 { AU1550_RTC_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 0 }, 242 { AU1200_USB_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
213 { AU1550_RTC_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 1 }, 243 { AU1200_LCD_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
214 { AU1550_NAND_INT, IRQ_TYPE_EDGE_RISING, 0 }, 244 { AU1200_MAE_BOTH_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0 },
215 { AU1550_USB_DEV_REQ_INT, IRQ_TYPE_LEVEL_HIGH, 1 },
216 { AU1550_USB_DEV_SUS_INT, IRQ_TYPE_EDGE_RISING, 0 },
217 { AU1550_USB_HOST_INT, IRQ_TYPE_LEVEL_LOW, 0 },
218 { AU1550_MAC0_DMA_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
219 { AU1550_MAC1_DMA_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
220 { -1, }, 245 { -1, },
221}; 246};
222 247
223struct au1xxx_irqmap au1200_irqmap[] __initdata = { 248static struct alchemy_irqmap au1300_irqmap[] __initdata = {
224 { AU1200_UART0_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 249 /* multifunction: gpio pin or device */
225 { AU1200_SWT_INT, IRQ_TYPE_EDGE_RISING, 0 }, 250 { AU1300_UART1_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0, },
226 { AU1200_SD_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 251 { AU1300_UART2_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0, },
227 { AU1200_DDMA_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 252 { AU1300_UART3_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0, },
228 { AU1200_MAE_BE_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 253 { AU1300_SD1_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0, },
229 { AU1200_UART1_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 254 { AU1300_SD2_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0, },
230 { AU1200_MAE_FE_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 255 { AU1300_PSC0_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0, },
231 { AU1200_PSC0_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 256 { AU1300_PSC1_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0, },
232 { AU1200_PSC1_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 257 { AU1300_PSC2_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0, },
233 { AU1200_AES_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 258 { AU1300_PSC3_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0, },
234 { AU1200_CAMERA_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 259 { AU1300_NAND_INT, IRQ_TYPE_LEVEL_HIGH, 1, 0, },
235 { AU1200_TOY_INT, IRQ_TYPE_EDGE_RISING, 0 }, 260 /* au1300 internal */
236 { AU1200_TOY_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 0 }, 261 { AU1300_DDMA_INT, IRQ_TYPE_LEVEL_HIGH, 1, 1, },
237 { AU1200_TOY_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 0 }, 262 { AU1300_MMU_INT, IRQ_TYPE_LEVEL_HIGH, 1, 1, },
238 { AU1200_TOY_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 0 }, 263 { AU1300_MPU_INT, IRQ_TYPE_LEVEL_HIGH, 1, 1, },
239 { AU1200_RTC_INT, IRQ_TYPE_EDGE_RISING, 0 }, 264 { AU1300_GPU_INT, IRQ_TYPE_LEVEL_HIGH, 1, 1, },
240 { AU1200_RTC_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 0 }, 265 { AU1300_UDMA_INT, IRQ_TYPE_LEVEL_HIGH, 1, 1, },
241 { AU1200_RTC_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 0 }, 266 { AU1300_TOY_INT, IRQ_TYPE_EDGE_RISING, 1, 1, },
242 { AU1200_RTC_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 1 }, 267 { AU1300_TOY_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 1, 1, },
243 { AU1200_NAND_INT, IRQ_TYPE_EDGE_RISING, 0 }, 268 { AU1300_TOY_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 1, 1, },
244 { AU1200_USB_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 269 { AU1300_TOY_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 1, 1, },
245 { AU1200_LCD_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 270 { AU1300_RTC_INT, IRQ_TYPE_EDGE_RISING, 1, 1, },
246 { AU1200_MAE_BOTH_INT, IRQ_TYPE_LEVEL_HIGH, 0 }, 271 { AU1300_RTC_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 1, 1, },
247 { -1, }, 272 { AU1300_RTC_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 1, 1, },
273 { AU1300_RTC_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 0, 1, },
274 { AU1300_UART0_INT, IRQ_TYPE_LEVEL_HIGH, 1, 1, },
275 { AU1300_SD0_INT, IRQ_TYPE_LEVEL_HIGH, 1, 1, },
276 { AU1300_USB_INT, IRQ_TYPE_LEVEL_HIGH, 1, 1, },
277 { AU1300_LCD_INT, IRQ_TYPE_LEVEL_HIGH, 1, 1, },
278 { AU1300_BSA_INT, IRQ_TYPE_LEVEL_HIGH, 1, 1, },
279 { AU1300_MPE_INT, IRQ_TYPE_EDGE_RISING, 1, 1, },
280 { AU1300_ITE_INT, IRQ_TYPE_LEVEL_HIGH, 1, 1, },
281 { AU1300_AES_INT, IRQ_TYPE_LEVEL_HIGH, 1, 1, },
282 { AU1300_CIM_INT, IRQ_TYPE_LEVEL_HIGH, 1, 1, },
283 { -1, }, /* terminator */
248}; 284};
249 285
286/******************************************************************************/
250 287
251static void au1x_ic0_unmask(struct irq_data *d) 288static void au1x_ic0_unmask(struct irq_data *d)
252{ 289{
@@ -265,14 +302,6 @@ static void au1x_ic1_unmask(struct irq_data *d)
265 302
266 __raw_writel(1 << bit, base + IC_MASKSET); 303 __raw_writel(1 << bit, base + IC_MASKSET);
267 __raw_writel(1 << bit, base + IC_WAKESET); 304 __raw_writel(1 << bit, base + IC_WAKESET);
268
269/* very hacky. does the pb1000 cpld auto-disable this int?
270 * nowhere in the current kernel sources is it disabled. --mlau
271 */
272#if defined(CONFIG_MIPS_PB1000)
273 if (d->irq == AU1000_GPIO15_INT)
274 __raw_writel(0x4000, (void __iomem *)PB1000_MDR); /* enable int */
275#endif
276 wmb(); 305 wmb();
277} 306}
278 307
@@ -470,40 +499,219 @@ static int au1x_ic_settype(struct irq_data *d, unsigned int flow_type)
470 return ret; 499 return ret;
471} 500}
472 501
473asmlinkage void plat_irq_dispatch(void) 502/******************************************************************************/
503
504/*
505 * au1300_gpic_chgcfg - change PIN configuration.
506 * @gpio: pin to change (0-based GPIO number from datasheet).
507 * @clr: clear all bits set in 'clr'.
508 * @set: set these bits.
509 *
510 * modifies a pins' configuration register, bits set in @clr will
511 * be cleared in the register, bits in @set will be set.
512 */
513static inline void au1300_gpic_chgcfg(unsigned int gpio,
514 unsigned long clr,
515 unsigned long set)
516{
517 void __iomem *r = AU1300_GPIC_ADDR;
518 unsigned long l;
519
520 r += gpio * 4; /* offset into pin config array */
521 l = __raw_readl(r + AU1300_GPIC_PINCFG);
522 l &= ~clr;
523 l |= set;
524 __raw_writel(l, r + AU1300_GPIC_PINCFG);
525 wmb();
526}
527
528/*
529 * au1300_pinfunc_to_gpio - assign a pin as GPIO input (GPIO ctrl).
530 * @pin: pin (0-based GPIO number from datasheet).
531 *
532 * Assigns a GPIO pin to the GPIO controller, so its level can either
533 * be read or set through the generic GPIO functions.
534 * If you need a GPOUT, use au1300_gpio_set_value(pin, 0/1).
535 * REVISIT: is this function really necessary?
536 */
537void au1300_pinfunc_to_gpio(enum au1300_multifunc_pins gpio)
538{
539 au1300_gpio_direction_input(gpio + AU1300_GPIO_BASE);
540}
541EXPORT_SYMBOL_GPL(au1300_pinfunc_to_gpio);
542
543/*
544 * au1300_pinfunc_to_dev - assign a pin to the device function.
545 * @pin: pin (0-based GPIO number from datasheet).
546 *
547 * Assigns a GPIO pin to its associated device function; the pin will be
548 * driven by the device and not through GPIO functions.
549 */
550void au1300_pinfunc_to_dev(enum au1300_multifunc_pins gpio)
551{
552 void __iomem *r = AU1300_GPIC_ADDR;
553 unsigned long bit;
554
555 r += GPIC_GPIO_BANKOFF(gpio);
556 bit = GPIC_GPIO_TO_BIT(gpio);
557 __raw_writel(bit, r + AU1300_GPIC_DEVSEL);
558 wmb();
559}
560EXPORT_SYMBOL_GPL(au1300_pinfunc_to_dev);
561
562/*
563 * au1300_set_irq_priority - set internal priority of IRQ.
564 * @irq: irq to set priority (linux irq number).
565 * @p: priority (0 = highest, 3 = lowest).
566 */
567void au1300_set_irq_priority(unsigned int irq, int p)
474{ 568{
475 unsigned int pending = read_c0_status() & read_c0_cause(); 569 irq -= ALCHEMY_GPIC_INT_BASE;
476 unsigned long s, off; 570 au1300_gpic_chgcfg(irq, GPIC_CFG_IL_MASK, GPIC_CFG_IL_SET(p));
477 571}
478 if (pending & CAUSEF_IP7) { 572EXPORT_SYMBOL_GPL(au1300_set_irq_priority);
479 off = MIPS_CPU_IRQ_BASE + 7; 573
480 goto handle; 574/*
481 } else if (pending & CAUSEF_IP2) { 575 * au1300_set_dbdma_gpio - assign a gpio to one of the DBDMA triggers.
482 s = KSEG1ADDR(AU1000_IC0_PHYS_ADDR) + IC_REQ0INT; 576 * @dchan: dbdma trigger select (0, 1).
483 off = AU1000_INTC0_INT_BASE; 577 * @gpio: pin to assign as trigger.
484 } else if (pending & CAUSEF_IP3) { 578 *
485 s = KSEG1ADDR(AU1000_IC0_PHYS_ADDR) + IC_REQ1INT; 579 * DBDMA controller has 2 external trigger sources; this function
486 off = AU1000_INTC0_INT_BASE; 580 * assigns a GPIO to the selected trigger.
487 } else if (pending & CAUSEF_IP4) { 581 */
488 s = KSEG1ADDR(AU1000_IC1_PHYS_ADDR) + IC_REQ0INT; 582void au1300_set_dbdma_gpio(int dchan, unsigned int gpio)
489 off = AU1000_INTC1_INT_BASE; 583{
490 } else if (pending & CAUSEF_IP5) { 584 unsigned long r;
491 s = KSEG1ADDR(AU1000_IC1_PHYS_ADDR) + IC_REQ1INT; 585
492 off = AU1000_INTC1_INT_BASE; 586 if ((dchan >= 0) && (dchan <= 1)) {
493 } else 587 r = __raw_readl(AU1300_GPIC_ADDR + AU1300_GPIC_DMASEL);
494 goto spurious; 588 r &= ~(0xff << (8 * dchan));
495 589 r |= (gpio & 0x7f) << (8 * dchan);
496 s = __raw_readl((void __iomem *)s); 590 __raw_writel(r, AU1300_GPIC_ADDR + AU1300_GPIC_DMASEL);
497 if (unlikely(!s)) { 591 wmb();
498spurious:
499 spurious_interrupt();
500 return;
501 } 592 }
502 off += __ffs(s);
503handle:
504 do_IRQ(off);
505} 593}
506 594
595static inline void gpic_pin_set_idlewake(unsigned int gpio, int allow)
596{
597 au1300_gpic_chgcfg(gpio, GPIC_CFG_IDLEWAKE,
598 allow ? GPIC_CFG_IDLEWAKE : 0);
599}
600
601static void au1300_gpic_mask(struct irq_data *d)
602{
603 void __iomem *r = AU1300_GPIC_ADDR;
604 unsigned long bit, irq = d->irq;
605
606 irq -= ALCHEMY_GPIC_INT_BASE;
607 r += GPIC_GPIO_BANKOFF(irq);
608 bit = GPIC_GPIO_TO_BIT(irq);
609 __raw_writel(bit, r + AU1300_GPIC_IDIS);
610 wmb();
611
612 gpic_pin_set_idlewake(irq, 0);
613}
614
615static void au1300_gpic_unmask(struct irq_data *d)
616{
617 void __iomem *r = AU1300_GPIC_ADDR;
618 unsigned long bit, irq = d->irq;
619
620 irq -= ALCHEMY_GPIC_INT_BASE;
621
622 gpic_pin_set_idlewake(irq, 1);
623
624 r += GPIC_GPIO_BANKOFF(irq);
625 bit = GPIC_GPIO_TO_BIT(irq);
626 __raw_writel(bit, r + AU1300_GPIC_IEN);
627 wmb();
628}
629
630static void au1300_gpic_maskack(struct irq_data *d)
631{
632 void __iomem *r = AU1300_GPIC_ADDR;
633 unsigned long bit, irq = d->irq;
634
635 irq -= ALCHEMY_GPIC_INT_BASE;
636 r += GPIC_GPIO_BANKOFF(irq);
637 bit = GPIC_GPIO_TO_BIT(irq);
638 __raw_writel(bit, r + AU1300_GPIC_IPEND); /* ack */
639 __raw_writel(bit, r + AU1300_GPIC_IDIS); /* mask */
640 wmb();
641
642 gpic_pin_set_idlewake(irq, 0);
643}
644
645static void au1300_gpic_ack(struct irq_data *d)
646{
647 void __iomem *r = AU1300_GPIC_ADDR;
648 unsigned long bit, irq = d->irq;
649
650 irq -= ALCHEMY_GPIC_INT_BASE;
651 r += GPIC_GPIO_BANKOFF(irq);
652 bit = GPIC_GPIO_TO_BIT(irq);
653 __raw_writel(bit, r + AU1300_GPIC_IPEND); /* ack */
654 wmb();
655}
656
657static struct irq_chip au1300_gpic = {
658 .name = "GPIOINT",
659 .irq_ack = au1300_gpic_ack,
660 .irq_mask = au1300_gpic_mask,
661 .irq_mask_ack = au1300_gpic_maskack,
662 .irq_unmask = au1300_gpic_unmask,
663 .irq_set_type = au1300_gpic_settype,
664};
665
666static int au1300_gpic_settype(struct irq_data *d, unsigned int type)
667{
668 unsigned long s;
669 unsigned char *name = NULL;
670 irq_flow_handler_t hdl = NULL;
671
672 switch (type) {
673 case IRQ_TYPE_LEVEL_HIGH:
674 s = GPIC_CFG_IC_LEVEL_HIGH;
675 name = "high";
676 hdl = handle_level_irq;
677 break;
678 case IRQ_TYPE_LEVEL_LOW:
679 s = GPIC_CFG_IC_LEVEL_LOW;
680 name = "low";
681 hdl = handle_level_irq;
682 break;
683 case IRQ_TYPE_EDGE_RISING:
684 s = GPIC_CFG_IC_EDGE_RISE;
685 name = "posedge";
686 hdl = handle_edge_irq;
687 break;
688 case IRQ_TYPE_EDGE_FALLING:
689 s = GPIC_CFG_IC_EDGE_FALL;
690 name = "negedge";
691 hdl = handle_edge_irq;
692 break;
693 case IRQ_TYPE_EDGE_BOTH:
694 s = GPIC_CFG_IC_EDGE_BOTH;
695 name = "bothedge";
696 hdl = handle_edge_irq;
697 break;
698 case IRQ_TYPE_NONE:
699 s = GPIC_CFG_IC_OFF;
700 name = "disabled";
701 hdl = handle_level_irq;
702 break;
703 default:
704 return -EINVAL;
705 }
706
707 __irq_set_chip_handler_name_locked(d->irq, &au1300_gpic, hdl, name);
708
709 au1300_gpic_chgcfg(d->irq - ALCHEMY_GPIC_INT_BASE, GPIC_CFG_IC_MASK, s);
710
711 return 0;
712}
713
714/******************************************************************************/
507 715
508static inline void ic_init(void __iomem *base) 716static inline void ic_init(void __iomem *base)
509{ 717{
@@ -521,13 +729,159 @@ static inline void ic_init(void __iomem *base)
521 wmb(); 729 wmb();
522} 730}
523 731
524static void __init au1000_init_irq(struct au1xxx_irqmap *map) 732static unsigned long alchemy_gpic_pmdata[ALCHEMY_GPIC_INT_NUM + 6];
733
734static inline void alchemy_ic_suspend_one(void __iomem *base, unsigned long *d)
735{
736 d[0] = __raw_readl(base + IC_CFG0RD);
737 d[1] = __raw_readl(base + IC_CFG1RD);
738 d[2] = __raw_readl(base + IC_CFG2RD);
739 d[3] = __raw_readl(base + IC_SRCRD);
740 d[4] = __raw_readl(base + IC_ASSIGNRD);
741 d[5] = __raw_readl(base + IC_WAKERD);
742 d[6] = __raw_readl(base + IC_MASKRD);
743 ic_init(base); /* shut it up too while at it */
744}
745
746static inline void alchemy_ic_resume_one(void __iomem *base, unsigned long *d)
747{
748 ic_init(base);
749
750 __raw_writel(d[0], base + IC_CFG0SET);
751 __raw_writel(d[1], base + IC_CFG1SET);
752 __raw_writel(d[2], base + IC_CFG2SET);
753 __raw_writel(d[3], base + IC_SRCSET);
754 __raw_writel(d[4], base + IC_ASSIGNSET);
755 __raw_writel(d[5], base + IC_WAKESET);
756 wmb();
757
758 __raw_writel(d[6], base + IC_MASKSET);
759 wmb();
760}
761
762static int alchemy_ic_suspend(void)
763{
764 alchemy_ic_suspend_one((void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR),
765 alchemy_gpic_pmdata);
766 alchemy_ic_suspend_one((void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR),
767 &alchemy_gpic_pmdata[7]);
768 return 0;
769}
770
771static void alchemy_ic_resume(void)
772{
773 alchemy_ic_resume_one((void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR),
774 &alchemy_gpic_pmdata[7]);
775 alchemy_ic_resume_one((void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR),
776 alchemy_gpic_pmdata);
777}
778
779static int alchemy_gpic_suspend(void)
780{
781 void __iomem *base = (void __iomem *)KSEG1ADDR(AU1300_GPIC_PHYS_ADDR);
782 int i;
783
784 /* save 4 interrupt mask status registers */
785 alchemy_gpic_pmdata[0] = __raw_readl(base + AU1300_GPIC_IEN + 0x0);
786 alchemy_gpic_pmdata[1] = __raw_readl(base + AU1300_GPIC_IEN + 0x4);
787 alchemy_gpic_pmdata[2] = __raw_readl(base + AU1300_GPIC_IEN + 0x8);
788 alchemy_gpic_pmdata[3] = __raw_readl(base + AU1300_GPIC_IEN + 0xc);
789
790 /* save misc register(s) */
791 alchemy_gpic_pmdata[4] = __raw_readl(base + AU1300_GPIC_DMASEL);
792
793 /* molto silenzioso */
794 __raw_writel(~0UL, base + AU1300_GPIC_IDIS + 0x0);
795 __raw_writel(~0UL, base + AU1300_GPIC_IDIS + 0x4);
796 __raw_writel(~0UL, base + AU1300_GPIC_IDIS + 0x8);
797 __raw_writel(~0UL, base + AU1300_GPIC_IDIS + 0xc);
798 wmb();
799
800 /* save pin/int-type configuration */
801 base += AU1300_GPIC_PINCFG;
802 for (i = 0; i < ALCHEMY_GPIC_INT_NUM; i++)
803 alchemy_gpic_pmdata[i + 5] = __raw_readl(base + (i << 2));
804
805 wmb();
806
807 return 0;
808}
809
810static void alchemy_gpic_resume(void)
811{
812 void __iomem *base = (void __iomem *)KSEG1ADDR(AU1300_GPIC_PHYS_ADDR);
813 int i;
814
815 /* disable all first */
816 __raw_writel(~0UL, base + AU1300_GPIC_IDIS + 0x0);
817 __raw_writel(~0UL, base + AU1300_GPIC_IDIS + 0x4);
818 __raw_writel(~0UL, base + AU1300_GPIC_IDIS + 0x8);
819 __raw_writel(~0UL, base + AU1300_GPIC_IDIS + 0xc);
820 wmb();
821
822 /* restore pin/int-type configurations */
823 base += AU1300_GPIC_PINCFG;
824 for (i = 0; i < ALCHEMY_GPIC_INT_NUM; i++)
825 __raw_writel(alchemy_gpic_pmdata[i + 5], base + (i << 2));
826 wmb();
827
828 /* restore misc register(s) */
829 base = (void __iomem *)KSEG1ADDR(AU1300_GPIC_PHYS_ADDR);
830 __raw_writel(alchemy_gpic_pmdata[4], base + AU1300_GPIC_DMASEL);
831 wmb();
832
833 /* finally restore masks */
834 __raw_writel(alchemy_gpic_pmdata[0], base + AU1300_GPIC_IEN + 0x0);
835 __raw_writel(alchemy_gpic_pmdata[1], base + AU1300_GPIC_IEN + 0x4);
836 __raw_writel(alchemy_gpic_pmdata[2], base + AU1300_GPIC_IEN + 0x8);
837 __raw_writel(alchemy_gpic_pmdata[3], base + AU1300_GPIC_IEN + 0xc);
838 wmb();
839}
840
841static struct syscore_ops alchemy_ic_pmops = {
842 .suspend = alchemy_ic_suspend,
843 .resume = alchemy_ic_resume,
844};
845
846static struct syscore_ops alchemy_gpic_pmops = {
847 .suspend = alchemy_gpic_suspend,
848 .resume = alchemy_gpic_resume,
849};
850
851/******************************************************************************/
852
853/* create chained handlers for the 4 IC requests to the MIPS IRQ ctrl */
854#define DISP(name, base, addr) \
855static void au1000_##name##_dispatch(unsigned int irq, struct irq_desc *d) \
856{ \
857 unsigned long r = __raw_readl((void __iomem *)KSEG1ADDR(addr)); \
858 if (likely(r)) \
859 generic_handle_irq(base + __ffs(r)); \
860 else \
861 spurious_interrupt(); \
862}
863
864DISP(ic0r0, AU1000_INTC0_INT_BASE, AU1000_IC0_PHYS_ADDR + IC_REQ0INT)
865DISP(ic0r1, AU1000_INTC0_INT_BASE, AU1000_IC0_PHYS_ADDR + IC_REQ1INT)
866DISP(ic1r0, AU1000_INTC1_INT_BASE, AU1000_IC1_PHYS_ADDR + IC_REQ0INT)
867DISP(ic1r1, AU1000_INTC1_INT_BASE, AU1000_IC1_PHYS_ADDR + IC_REQ1INT)
868
869static void alchemy_gpic_dispatch(unsigned int irq, struct irq_desc *d)
870{
871 int i = __raw_readl(AU1300_GPIC_ADDR + AU1300_GPIC_PRIENC);
872 generic_handle_irq(ALCHEMY_GPIC_INT_BASE + i);
873}
874
875/******************************************************************************/
876
877static void __init au1000_init_irq(struct alchemy_irqmap *map)
525{ 878{
526 unsigned int bit, irq_nr; 879 unsigned int bit, irq_nr;
527 void __iomem *base; 880 void __iomem *base;
528 881
529 ic_init((void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR)); 882 ic_init((void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR));
530 ic_init((void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR)); 883 ic_init((void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR));
884 register_syscore_ops(&alchemy_ic_pmops);
531 mips_cpu_irq_init(); 885 mips_cpu_irq_init();
532 886
533 /* register all 64 possible IC0+IC1 irq sources as type "none". 887 /* register all 64 possible IC0+IC1 irq sources as type "none".
@@ -544,8 +898,8 @@ static void __init au1000_init_irq(struct au1xxx_irqmap *map)
544 /* 898 /*
545 * Initialize IC0, which is fixed per processor. 899 * Initialize IC0, which is fixed per processor.
546 */ 900 */
547 while (map->im_irq != -1) { 901 while (map->irq != -1) {
548 irq_nr = map->im_irq; 902 irq_nr = map->irq;
549 903
550 if (irq_nr >= AU1000_INTC1_INT_BASE) { 904 if (irq_nr >= AU1000_INTC1_INT_BASE) {
551 bit = irq_nr - AU1000_INTC1_INT_BASE; 905 bit = irq_nr - AU1000_INTC1_INT_BASE;
@@ -554,16 +908,61 @@ static void __init au1000_init_irq(struct au1xxx_irqmap *map)
554 bit = irq_nr - AU1000_INTC0_INT_BASE; 908 bit = irq_nr - AU1000_INTC0_INT_BASE;
555 base = (void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR); 909 base = (void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR);
556 } 910 }
557 if (map->im_request) 911 if (map->prio == 0)
558 __raw_writel(1 << bit, base + IC_ASSIGNSET); 912 __raw_writel(1 << bit, base + IC_ASSIGNSET);
559 913
560 au1x_ic_settype(irq_get_irq_data(irq_nr), map->im_type); 914 au1x_ic_settype(irq_get_irq_data(irq_nr), map->type);
561 ++map; 915 ++map;
562 } 916 }
563 917
564 set_c0_status(IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | IE_IRQ3); 918 irq_set_chained_handler(MIPS_CPU_IRQ_BASE + 2, au1000_ic0r0_dispatch);
919 irq_set_chained_handler(MIPS_CPU_IRQ_BASE + 3, au1000_ic0r1_dispatch);
920 irq_set_chained_handler(MIPS_CPU_IRQ_BASE + 4, au1000_ic1r0_dispatch);
921 irq_set_chained_handler(MIPS_CPU_IRQ_BASE + 5, au1000_ic1r1_dispatch);
922}
923
924static void __init alchemy_gpic_init_irq(const struct alchemy_irqmap *dints)
925{
926 int i;
927 void __iomem *bank_base;
928
929 register_syscore_ops(&alchemy_gpic_pmops);
930 mips_cpu_irq_init();
931
932 /* disable & ack all possible interrupt sources */
933 for (i = 0; i < 4; i++) {
934 bank_base = AU1300_GPIC_ADDR + (i * 4);
935 __raw_writel(~0UL, bank_base + AU1300_GPIC_IDIS);
936 wmb();
937 __raw_writel(~0UL, bank_base + AU1300_GPIC_IPEND);
938 wmb();
939 }
940
941 /* register an irq_chip for them, with 2nd highest priority */
942 for (i = ALCHEMY_GPIC_INT_BASE; i <= ALCHEMY_GPIC_INT_LAST; i++) {
943 au1300_set_irq_priority(i, 1);
944 au1300_gpic_settype(irq_get_irq_data(i), IRQ_TYPE_NONE);
945 }
946
947 /* setup known on-chip sources */
948 while ((i = dints->irq) != -1) {
949 au1300_gpic_settype(irq_get_irq_data(i), dints->type);
950 au1300_set_irq_priority(i, dints->prio);
951
952 if (dints->internal)
953 au1300_pinfunc_to_dev(i - ALCHEMY_GPIC_INT_BASE);
954
955 dints++;
956 }
957
958 irq_set_chained_handler(MIPS_CPU_IRQ_BASE + 2, alchemy_gpic_dispatch);
959 irq_set_chained_handler(MIPS_CPU_IRQ_BASE + 3, alchemy_gpic_dispatch);
960 irq_set_chained_handler(MIPS_CPU_IRQ_BASE + 4, alchemy_gpic_dispatch);
961 irq_set_chained_handler(MIPS_CPU_IRQ_BASE + 5, alchemy_gpic_dispatch);
565} 962}
566 963
964/******************************************************************************/
965
567void __init arch_init_irq(void) 966void __init arch_init_irq(void)
568{ 967{
569 switch (alchemy_get_cputype()) { 968 switch (alchemy_get_cputype()) {
@@ -582,65 +981,17 @@ void __init arch_init_irq(void)
582 case ALCHEMY_CPU_AU1200: 981 case ALCHEMY_CPU_AU1200:
583 au1000_init_irq(au1200_irqmap); 982 au1000_init_irq(au1200_irqmap);
584 break; 983 break;
984 case ALCHEMY_CPU_AU1300:
985 alchemy_gpic_init_irq(au1300_irqmap);
986 break;
987 default:
988 pr_err("unknown Alchemy IRQ core\n");
989 break;
585 } 990 }
586} 991}
587 992
588 993asmlinkage void plat_irq_dispatch(void)
589static unsigned long alchemy_ic_pmdata[7 * 2];
590
591static inline void alchemy_ic_suspend_one(void __iomem *base, unsigned long *d)
592{
593 d[0] = __raw_readl(base + IC_CFG0RD);
594 d[1] = __raw_readl(base + IC_CFG1RD);
595 d[2] = __raw_readl(base + IC_CFG2RD);
596 d[3] = __raw_readl(base + IC_SRCRD);
597 d[4] = __raw_readl(base + IC_ASSIGNRD);
598 d[5] = __raw_readl(base + IC_WAKERD);
599 d[6] = __raw_readl(base + IC_MASKRD);
600 ic_init(base); /* shut it up too while at it */
601}
602
603static inline void alchemy_ic_resume_one(void __iomem *base, unsigned long *d)
604{
605 ic_init(base);
606
607 __raw_writel(d[0], base + IC_CFG0SET);
608 __raw_writel(d[1], base + IC_CFG1SET);
609 __raw_writel(d[2], base + IC_CFG2SET);
610 __raw_writel(d[3], base + IC_SRCSET);
611 __raw_writel(d[4], base + IC_ASSIGNSET);
612 __raw_writel(d[5], base + IC_WAKESET);
613 wmb();
614
615 __raw_writel(d[6], base + IC_MASKSET);
616 wmb();
617}
618
619static int alchemy_ic_suspend(void)
620{
621 alchemy_ic_suspend_one((void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR),
622 alchemy_ic_pmdata);
623 alchemy_ic_suspend_one((void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR),
624 &alchemy_ic_pmdata[7]);
625 return 0;
626}
627
628static void alchemy_ic_resume(void)
629{
630 alchemy_ic_resume_one((void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR),
631 &alchemy_ic_pmdata[7]);
632 alchemy_ic_resume_one((void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR),
633 alchemy_ic_pmdata);
634}
635
636static struct syscore_ops alchemy_ic_syscore_ops = {
637 .suspend = alchemy_ic_suspend,
638 .resume = alchemy_ic_resume,
639};
640
641static int __init alchemy_ic_pm_init(void)
642{ 994{
643 register_syscore_ops(&alchemy_ic_syscore_ops); 995 unsigned long r = (read_c0_status() & read_c0_cause()) >> 8;
644 return 0; 996 do_IRQ(MIPS_CPU_IRQ_BASE + __ffs(r & 0xff));
645} 997}
646device_initcall(alchemy_ic_pm_init);
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-14 23:18:01 -0500