projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| eaeed5d3 SG |
1 | /* |
| 2 | * June 2006 steve.glendinning@smsc.com | |
| 3 | * | |
| 4 | * Polaris-specific resource declaration | |
| 5 | * | |
| 6 | */ | |
| 7 | ||
| 8 | #include <linux/init.h> | |
| 9 | #include <linux/interrupt.h> | |
| 10 | #include <linux/irq.h> | |
| 11 | #include <linux/platform_device.h> | |
| 12 | #include <linux/smsc911x.h> | |
| 13 | #include <linux/io.h> | |
| 14 | #include <asm/irq.h> | |
| 15 | #include <asm/machvec.h> | |
| 16 | #include <asm/heartbeat.h> | |
| 17 | #include <cpu/gpio.h> | |
| 18 | #include <mach-se/mach/se.h> | |
| 19 | ||
| 20 | #define BCR2 (0xFFFFFF62) | |
| 21 | #define WCR2 (0xFFFFFF66) | |
| 22 | #define AREA5_WAIT_CTRL (0x1C00) | |
| 23 | #define WAIT_STATES_10 (0x7) | |
| 24 | ||
| 25 | static struct resource smsc911x_resources[] = { | |
| 26 | [0] = { | |
| 27 | .name = "smsc911x-memory", | |
| 28 | .start = PA_EXT5, | |
| 29 | .end = PA_EXT5 + 0x1fff, | |
| 30 | .flags = IORESOURCE_MEM, | |
| 31 | }, | |
| 32 | [1] = { | |
| 33 | .name = "smsc911x-irq", | |
| 34 | .start = IRQ0_IRQ, | |
| 35 | .end = IRQ0_IRQ, | |
| 36 | .flags = IORESOURCE_IRQ, | |
| 37 | }, | |
| 38 | }; | |
| 39 | ||
| 40 | static struct smsc911x_platform_config smsc911x_config = { | |
| 41 | .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, | |
| 42 | .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN, | |
| 43 | .flags = SMSC911X_USE_32BIT, | |
| 44 | .phy_interface = PHY_INTERFACE_MODE_MII, | |
| 45 | }; | |
| 46 | ||
| 47 | static struct platform_device smsc911x_device = { | |
| 48 | .name = "smsc911x", | |
| 49 | .id = 0, | |
| 50 | .num_resources = ARRAY_SIZE(smsc911x_resources), | |
| 51 | .resource = smsc911x_resources, | |
| 52 | .dev = { | |
| 53 | .platform_data = &smsc911x_config, | |
| 54 | }, | |
| 55 | }; | |
| 56 | ||
| 57 | static unsigned char heartbeat_bit_pos[] = { 0, 1, 2, 3 }; | |
| 58 | ||
| 59 | static struct heartbeat_data heartbeat_data = { | |
| 60 | .bit_pos = heartbeat_bit_pos, | |
| 61 | .nr_bits = ARRAY_SIZE(heartbeat_bit_pos), | |
| 62 | .regsize = 8, | |
| 63 | }; | |
| 64 | ||
| 65 | static struct resource heartbeat_resources[] = { | |
| 66 | [0] = { | |
| 67 | .start = PORT_PCDR, | |
| 68 | .end = PORT_PCDR, | |
| 69 | .flags = IORESOURCE_MEM, | |
| 70 | }, | |
| 71 | }; | |
| 72 | ||
| 73 | static struct platform_device heartbeat_device = { | |
| 74 | .name = "heartbeat", | |
| 75 | .id = -1, | |
| 76 | .dev = { | |
| 77 | .platform_data = &heartbeat_data, | |
| 78 | }, | |
| 79 | .num_resources = ARRAY_SIZE(heartbeat_resources), | |
| 80 | .resource = heartbeat_resources, | |
| 81 | }; | |
| 82 | ||
| 83 | static struct platform_device *polaris_devices[] __initdata = { | |
| 84 | &smsc911x_device, | |
| 85 | &heartbeat_device, | |
| 86 | }; | |
| 87 | ||
| 88 | static int __init polaris_initialise(void) | |
| 89 | { | |
| 90 | u16 wcr, bcr_mask; | |
| 91 | ||
| 92 | printk(KERN_INFO "Configuring Polaris external bus\n"); | |
| 93 | ||
| 94 | /* Configure area 5 with 2 wait states */ | |
| 95 | wcr = ctrl_inw(WCR2); | |
| 96 | wcr &= (~AREA5_WAIT_CTRL); | |
| 97 | wcr |= (WAIT_STATES_10 << 10); | |
| 98 | ctrl_outw(wcr, WCR2); | |
| 99 | ||
| 100 | /* Configure area 5 for 32-bit access */ | |
| 101 | bcr_mask = ctrl_inw(BCR2); | |
| 102 | bcr_mask |= 1 << 10; | |
| 103 | ctrl_outw(bcr_mask, BCR2); | |
| 104 | ||
| 105 | return platform_add_devices(polaris_devices, | |
| 106 | ARRAY_SIZE(polaris_devices)); | |
| 107 | } | |
| 108 | arch_initcall(polaris_initialise); | |
| 109 | ||
| 110 | static struct ipr_data ipr_irq_table[] = { | |
| 111 | /* External IRQs */ | |
| 112 | { IRQ0_IRQ, 0, 0, 1, }, /* IRQ0 */ | |
| 113 | { IRQ1_IRQ, 0, 4, 1, }, /* IRQ1 */ | |
| 114 | }; | |
| 115 | ||
| 116 | static unsigned long ipr_offsets[] = { | |
| 117 | INTC_IPRC | |
| 118 | }; | |
| 119 | ||
| 120 | static struct ipr_desc ipr_irq_desc = { | |
| 121 | .ipr_offsets = ipr_offsets, | |
| 122 | .nr_offsets = ARRAY_SIZE(ipr_offsets), | |
| 123 | ||
| 124 | .ipr_data = ipr_irq_table, | |
| 125 | .nr_irqs = ARRAY_SIZE(ipr_irq_table), | |
| 126 | .chip = { | |
| 127 | .name = "sh7709-ext", | |
| 128 | }, | |
| 129 | }; | |
| 130 | ||
| 131 | static void __init init_polaris_irq(void) | |
| 132 | { | |
| 133 | /* Disable all interrupts */ | |
| 134 | ctrl_outw(0, BCR_ILCRA); | |
| 135 | ctrl_outw(0, BCR_ILCRB); | |
| 136 | ctrl_outw(0, BCR_ILCRC); | |
| 137 | ctrl_outw(0, BCR_ILCRD); | |
| 138 | ctrl_outw(0, BCR_ILCRE); | |
| 139 | ctrl_outw(0, BCR_ILCRF); | |
| 140 | ctrl_outw(0, BCR_ILCRG); | |
| 141 | ||
| 142 | register_ipr_controller(&ipr_irq_desc); | |
| 143 | } | |
| 144 | ||
| 145 | static struct sh_machine_vector mv_polaris __initmv = { | |
| 146 | .mv_name = "Polaris", | |
| 147 | .mv_nr_irqs = 61, | |
| 148 | .mv_init_irq = init_polaris_irq, | |
| 149 | }; |