Changeset 91bf378 in mainline
- Timestamp:
- 2013-09-10T12:51:11Z (11 years ago)
- Branches:
- lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
- Children:
- 3c9646b
- Parents:
- 5bf69ac6
- Location:
- kernel/genarch/include/genarch/drivers
- Files:
-
- 2 edited
Legend:
- Unmodified
- Added
- Removed
-
kernel/genarch/include/genarch/drivers/am335x/irc.h
r5bf69ac6 r91bf378 38 38 #define KERN_AM335x_IRQC_H_ 39 39 40 #define AM335x_IRC_BASE_ADDRESS 0x4820000041 #define AM335x_IRC_SIZE 409640 #define AM335x_IRC_BASE_ADDRESS 0x48200000 41 #define AM335x_IRC_SIZE 4096 42 42 43 #define AM335x_IRC_IRQ_COUNT 128 43 #define AM335x_IRC_IRQ_COUNT 128 44 #define AM335x_IRC_IRQ_GROUPS_COUNT 4 44 45 45 #include <typedefs.h> 46 #define OMAP_IRC_IRQ_COUNT AM335x_IRC_IRQ_COUNT 47 #define OMAP_IRC_IRQ_GROUPS_COUNT AM335x_IRC_IRQ_GROUPS_COUNT 46 48 47 typedef struct { 48 const ioport32_t revision; 49 #define AM335x_IRC_REV_MASK 0xFF 50 51 const uint8_t padd0[12]; 52 53 /* This register controls the various parameters 54 * of the OCP interface. 55 */ 56 ioport32_t sysconfig; 57 #define AM335x_IRC_SYSCONFIG_AUTOIDLE_FLAG (1 << 0) 58 #define AM335x_IRC_SYSCONFIG_SOFTRESET_FLAG (1 << 1) 59 60 /* This register provides status information about the module */ 61 const ioport32_t sysstatus; 62 #define AM335x_IRC_SYSSTATUS_RESET_DONE_FLAG (1 << 0) 63 64 const uint8_t padd1[40]; 65 66 /* This register supplies the currently active IRQ interrupt number */ 67 ioport32_t sir_irq; 68 #define AM335x_IRC_SIR_IRQ_ACTIVEIRQ_MASK 0x7F 69 #define AM335x_IRC_SIR_IRQ_SPURIOUSIRQFLAG_MASK 0xFFFFFFF8 70 71 /* This register supplies the currently active FIQ interrupt number */ 72 const ioport32_t sir_fiq; 73 #define AM335x_IRC_FIQ_IRQ_ACTIVEFIQ_MASK 0x7F 74 #define AM335x_IRC_FIQ_IRQ_SPURIOUSFIQFLAG_MASK 0xFFFFFFF8 75 76 /* This register contains the new interrupt agreement bits */ 77 ioport32_t control; 78 #define AM335x_IRC_CONTROL_NEWIRQAGR_FLAG (1 << 0) 79 #define AM335x_IRC_CONTROL_NEWFIQAGR_FLAG (1 << 1) 80 81 /* This register controls protection of the other registers. 82 * This register can only be accessed in priviledged mode, regardless 83 * of the current value of the protection bit. 84 */ 85 ioport32_t protection; 86 #define AM335x_IRC_PROTECTION_FLAG (1 << 0) 87 88 /* This register controls the clock auto-idle for the functional 89 * clock and the input synchronizers. 90 */ 91 ioport32_t idle; 92 #define AM335x_IRC_IDLE_FUNCIDLE_FLAG (1 << 0) 93 #define AM335x_IRC_IDLE_TURBO_FLAG (1 << 1) 94 95 const uint8_t padd2[12]; 96 97 /* This register supplies the currently active IRQ priority level */ 98 const ioport32_t irq_priority; 99 #define AM335x_IRC_IRQ_PRIORITY_IRQPRIORITY_MASK 0x7F 100 #define AM335x_IRC_IRQ_PRIORITY_SPURIOUSIRQFLAG_MASK 0xFFFFFFF8 101 102 /* This register supplies the currently active FIQ priority level */ 103 const ioport32_t fiq_priority; 104 #define AM335x_IRC_FIQ_PRIORITY_FIQPRIORITY_MASK 0x7F 105 #define AM335x_IRC_FIQ_PRIORITY_SPURIOUSIRQFLAG_MASK 0xFFFFFFF8 106 107 /* This register sets the priority threshold */ 108 ioport32_t threshold; 109 #define AM335x_IRC_THRESHOLD_PRIORITYTHRESHOLD_MASK 0xFF 110 #define AM335x_IRC_THRESHOLD_PRIORITYTHRESHOLD_ENABLED 0x00 111 #define AM335x_IRC_THRESHOLD_PRIORITYTHRESHOLD_DISABLED 0xFF 112 113 const uint8_t padd[20]; 114 115 struct { 116 /* Raw interrupt input status before masking */ 117 const ioport32_t itr; 118 119 /* Interrupt mask */ 120 ioport32_t mir; 121 122 /* This register is used to clear the interrupt mask bits, 123 * Write 1 clears the mask bit to 0. 124 */ 125 ioport32_t mir_clear; 126 127 /* This register is used to set the interrupt mask bits, 128 * Write 1 sets the mask bit to 1. 129 */ 130 ioport32_t mir_set; 131 132 /* This register is used to set the software interrupt bits, 133 * it is also used to read the current active software 134 * interrupts. 135 * Write 1 sets the software interrups bits to 1. 136 */ 137 ioport32_t isr_set; 138 139 /* This register is used to clear the software interrups bits. 140 * Write 1 clears the software interrupt bits to 0. 141 */ 142 ioport32_t isr_clear; 143 144 /* This register contains the IRQ status after masking. */ 145 const ioport32_t pending_irq; 146 147 /* This register contains the FIQ status after masking. */ 148 const ioport32_t pending_fiq; 149 } interrupts[4]; 150 151 /* These registers contain the priority for the interrups and 152 * the FIQ/IRQ steering. 153 */ 154 ioport32_t ilr[AM335x_IRC_IRQ_COUNT]; 155 /* 0 = Interrupt routed to IRQ, 1 = interrupt routed to FIQ */ 156 #define AM335x_IRC_ILR_FIQNIRQ_FLAG (1 << 0) 157 #define AM335x_IRC_ILR_PRIORITY_MASK 0x3F 158 #define AM335x_IRC_ILR_PRIORITY_SHIFT 2 159 160 } am335x_irc_regs_t; 161 162 static inline void am335x_irc_init(am335x_irc_regs_t *regs) 163 { 164 int i; 165 166 /* Initialization sequence */ 167 168 /* 1 - Program the SYSCONFIG register: if necessary, enable the 169 * autogating by setting the AUTOIDLE bit. 170 */ 171 regs->sysconfig &= ~AM335x_IRC_SYSCONFIG_AUTOIDLE_FLAG; 172 173 /* 2 - Program the IDLE register: if necessary, disable functional 174 * clock autogating or enable synchronizer autogating by setting 175 * the FUNCIDLE bit or the TURBO bit accordingly. 176 */ 177 regs->idle &= ~AM335x_IRC_IDLE_FUNCIDLE_FLAG; 178 regs->idle &= ~AM335x_IRC_IDLE_TURBO_FLAG; 179 180 /* 3 - Program ILRm register for each interrupt line: Assign a 181 * priority level and set the FIQNIRQ bit for an FIQ interrupt 182 * (by default, interrupts are mapped to IRQ and 183 * priority is 0 (highest). 184 */ 185 186 for (i = 0; i < AM335x_IRC_IRQ_COUNT; ++i) 187 regs->ilr[i] = 0; 188 189 /* 4 - Program the MIRn register: Enable interrupts (by default, 190 * all interrupt lines are masked). 191 */ 192 for (i = 0; i < 4; ++i) 193 regs->interrupts[i].mir_set = 0xFFFFFFFF; 194 } 195 196 /** Get the currently active IRQ interrupt number 197 * 198 * @param regs Pointer to the irc memory mapped registers 199 * 200 * @return The active IRQ interrupt number 201 */ 202 static inline unsigned am335x_irc_inum_get(am335x_irc_regs_t *regs) 203 { 204 return regs->sir_irq & AM335x_IRC_SIR_IRQ_ACTIVEIRQ_MASK; 205 } 206 207 /** Reset IRQ output and enable new IRQ generation 208 * 209 * @param regs Pointer to the irc memory mapped registers 210 */ 211 static inline void am335x_irc_irq_ack(am335x_irc_regs_t *regs) 212 { 213 regs->control = AM335x_IRC_CONTROL_NEWIRQAGR_FLAG; 214 } 215 216 /** Reset FIQ output and enable new FIQ generation 217 * 218 * @param regs Pointer to the irc memory mapped registers 219 */ 220 static inline void am335x_irc_fiq_ack(am335x_irc_regs_t *regs) 221 { 222 regs->control = AM335x_IRC_CONTROL_NEWFIQAGR_FLAG; 223 } 224 225 /** Clear an interrupt mask bit 226 * 227 * @param regs Pointer to the irc memory mapped registers 228 * @param inum The interrupt to be enabled 229 */ 230 static inline void am335x_irc_enable(am335x_irc_regs_t *regs, unsigned inum) 231 { 232 ASSERT(inum < AM335x_IRC_IRQ_COUNT); 233 const unsigned set = inum / 32; 234 const unsigned pos = inum % 32; 235 regs->interrupts[set].mir_clear = (1 << pos); 236 } 237 238 /** Set an interrupt mask bit 239 * 240 * @param regs Pointer to the irc memory mapped registers 241 * @param inum The interrupt to be disabled 242 */ 243 static inline void am335x_irc_disable(am335x_irc_regs_t *regs, unsigned inum) 244 { 245 ASSERT(inum < AM335x_IRC_IRQ_COUNT); 246 const unsigned set = inum / 32; 247 const unsigned pos = inum % 32; 248 regs->interrupts[set].mir_set = (1 << pos); 249 } 49 #include <genarch/drivers/omap/irc.h> 250 50 251 51 #endif -
kernel/genarch/include/genarch/drivers/amdm37x/irc.h
r5bf69ac6 r91bf378 38 38 39 39 /* AMDM37x TRM p. 1079 */ 40 #define AMDM37x_IRC_BASE_ADDRESS 0x4820000041 #define AMDM37x_IRC_SIZE 409640 #define AMDM37x_IRC_BASE_ADDRESS 0x48200000 41 #define AMDM37x_IRC_SIZE 4096 42 42 43 #define AMDM37x_IRC_IRQ_COUNT 96 43 #define AMDM37x_IRC_IRQ_COUNT 96 44 #define AMDM37x_IRC_IRQ_GROUPS_COUNT 3 44 45 45 #include <typedefs.h> 46 #define OMAP_IRC_IRQ_COUNT AMDM37x_IRC_IRQ_COUNT 47 #define OMAP_IRC_IRQ_GROUPS_COUNT AMDM37x_IRC_IRQ_GROUPS_COUNT 46 48 47 typedef struct { 48 const ioport32_t revision; /**< Revision */ 49 #define AMDM37x_IRC_REV_MASK (0xff) 50 51 uint8_t padd0_[12]; 52 53 ioport32_t sysconfig; /**< SYS config */ 54 #define AMDM37x_IRC_SYSCONFIG_AUTOIDLE_FLAG (1 << 0) 55 #define AMDM37x_IRC_SYSCONFIG_SOFTRESET_FLAG (1 << 1) 56 57 const ioport32_t sysstatus; /**< SYS status */ 58 #define AMDM37x_IRC_SYSSTATUS_RESET_DONE_FLAG (1 << 0) 59 60 uint8_t padd1_[40]; 61 62 const ioport32_t sir_irq; /**< Currently active irq number */ 63 #define AMDM37x_IRC_SIR_IRQ_ACTIVEIRQ_MASK (0x7f) 64 #define AMDM37x_IRC_SIR_IRQ_SPURIOUSIRQFLAG_MASK (0xfffffff8) 65 66 const ioport32_t sir_fiq; 67 #define AMDM37x_IRC_SIR_FIQ_ACTIVEIRQ_MASK (0x7f) 68 #define AMDM37x_IRC_SIR_FIQ_SPURIOUSIRQFLAG_MASK (0xfffffff8) 69 70 ioport32_t control; /**< New interrupt agreement. */ 71 #define AMDM37x_IRC_CONTROL_NEWIRQAGR_FLAG (1 << 0) 72 #define AMDM37x_IRC_CONTROL_NEWFIQAGR_FLAG (1 << 1) 73 74 ioport32_t protection; /**< Protect other registers. */ 75 #define AMDM37x_IRC_PROTECTION_PROETCTION_FLAG (1 << 0) 76 77 ioport32_t idle; /**< Idle and autogating */ 78 #define AMDM37x_IRC_IDLE_FUNCIDLE_FLAG (1 << 0) 79 #define AMDM37x_IRC_IDLE_TURBO_FLAG (1 << 1) 80 81 uint8_t padd2_[12]; 82 83 ioport32_t irq_priority; /**< Active IRQ priority */ 84 #define AMDM37x_IRC_IRQ_PRIORITY_IRQPRIORITY_MASK (0x7f) 85 #define AMDM37x_IRC_IRQ_PRIORITY_SPURIOUSIRQFLAG_MASK (0xfffffff8) 86 87 ioport32_t fiq_priority; /**< Active FIQ priority */ 88 #define AMDM37x_IRC_FIQ_PRIORITY_FIQPRIORITY_MASK (0x7f) 89 #define AMDM37x_IRC_FIQ_PRIORITY_SPURIOUSFIQFLAG_MASK (0xfffffff8) 90 91 ioport32_t threshold; /**< Priority threshold */ 92 #define AMDM37x_IRC_THRESHOLD_PRIORITYTHRESHOLD_MASK (0xff) 93 #define AMDM37x_IRC_THRESHOLD_PRIORITYTHRESHOLD_ENABLED (0x00) 94 #define AMDM37x_IRC_THRESHOLD_PRIORITYTHRESHOLD_DISABLED (0xff) 95 96 uint8_t padd3__[20]; 97 98 struct { 99 const ioport32_t itr; /**< Interrupt input status before masking */ 100 ioport32_t mir; /**< Interrupt mask */ 101 ioport32_t mir_clear; /**< Clear mir mask bits */ 102 ioport32_t mir_set; /**< Set mir mask bits */ 103 ioport32_t isr_set; /**< Set software interrupt bits */ 104 ioport32_t isr_clear; /**< Clear software interrupt bits */ 105 const ioport32_t pending_irq; /**< IRQ status after masking */ 106 const ioport32_t pending_fiq; /**< FIQ status after masking */ 107 } interrupts[3]; 108 109 uint8_t padd4_[32]; 110 111 ioport32_t ilr[96]; /**< FIQ/IRQ steering */ 112 #define AMDM37x_IRC_ILR_FIQNIRQ (1 << 0) 113 #define AMDM37x_IRC_ILR_PRIORITY_MASK (0x3f) 114 #define AMDM37x_IRC_ILR_PRIORITY_SHIFT (2) 115 116 } amdm37x_irc_regs_t; 117 118 static inline void amdm37x_irc_dump(amdm37x_irc_regs_t *regs) 119 { 120 #define DUMP_REG(name) \ 121 printf("%s %p(%x).\n", #name, ®s->name, regs->name); 122 123 DUMP_REG(revision); 124 DUMP_REG(sysconfig); 125 DUMP_REG(sysstatus); 126 DUMP_REG(sir_irq); 127 DUMP_REG(sir_fiq); 128 DUMP_REG(control); 129 DUMP_REG(protection); 130 DUMP_REG(idle); 131 DUMP_REG(irq_priority); 132 DUMP_REG(fiq_priority); 133 DUMP_REG(threshold); 134 135 for (int i = 0; i < 3; ++i) { 136 DUMP_REG(interrupts[i].itr); 137 DUMP_REG(interrupts[i].mir); 138 DUMP_REG(interrupts[i].isr_set); 139 DUMP_REG(interrupts[i].pending_irq); 140 DUMP_REG(interrupts[i].pending_fiq); 141 } 142 for (int i = 0; i < AMDM37x_IRC_IRQ_COUNT; ++i) { 143 DUMP_REG(ilr[i]); 144 } 145 146 #undef DUMP_REG 147 } 148 149 static inline void amdm37x_irc_init(amdm37x_irc_regs_t *regs) 150 { 151 /* AMDM37x TRM sec 12.5.1 p. 2425 */ 152 /* Program system config register */ 153 //TODO enable this when you know the meaning 154 //regs->sysconfig |= AMDM37x_IRC_SYSCONFIG_AUTOIDLE_FLAG; 155 156 /* Program idle register */ 157 //TODO enable this when you know the meaning 158 //regs->sysconfig |= AMDM37x_IRC_IDLE_TURBO_FLAG; 159 160 /* Program ilr[m] assign priority, decide fiq */ 161 for (unsigned i = 0; i < AMDM37x_IRC_IRQ_COUNT; ++i) { 162 regs->ilr[i] = 0; /* highest prio(default) route to irq */ 163 } 164 165 /* Disable all interrupts */ 166 regs->interrupts[0].mir_set = 0xffffffff; 167 regs->interrupts[1].mir_set = 0xffffffff; 168 regs->interrupts[2].mir_set = 0xffffffff; 169 } 170 171 static inline unsigned amdm37x_irc_inum_get(amdm37x_irc_regs_t *regs) 172 { 173 return regs->sir_irq & AMDM37x_IRC_SIR_IRQ_ACTIVEIRQ_MASK; 174 } 175 176 static inline void amdm37x_irc_irq_ack(amdm37x_irc_regs_t *regs) 177 { 178 regs->control = AMDM37x_IRC_CONTROL_NEWIRQAGR_FLAG; 179 } 180 181 static inline void amdm37x_irc_fiq_ack(amdm37x_irc_regs_t *regs) 182 { 183 regs->control = AMDM37x_IRC_CONTROL_NEWFIQAGR_FLAG; 184 } 185 186 static inline void amdm37x_irc_enable(amdm37x_irc_regs_t *regs, unsigned inum) 187 { 188 ASSERT(inum < AMDM37x_IRC_IRQ_COUNT); 189 const unsigned set = inum / 32; 190 const unsigned pos = inum % 32; 191 regs->interrupts[set].mir_clear = (1 << pos); 192 } 193 194 static inline void amdm37x_irc_disable(amdm37x_irc_regs_t *regs, unsigned inum) 195 { 196 ASSERT(inum < AMDM37x_IRC_IRQ_COUNT); 197 const unsigned set = inum / 32; 198 const unsigned pos = inum % 32; 199 regs->interrupts[set].mir_set = (1 << pos); 200 } 49 #include <genarch/drivers/omap/irc.h> 201 50 202 51 #endif
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