Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/drivers/pcmcia/sa1111_generic.c |
| 3 | * |
| 4 | * We implement the generic parts of a SA1111 PCMCIA driver. This |
| 5 | * basically means we handle everything except controlling the |
| 6 | * power. Power is machine specific... |
| 7 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | #include <linux/module.h> |
| 9 | #include <linux/kernel.h> |
| 10 | #include <linux/ioport.h> |
| 11 | #include <linux/device.h> |
| 12 | #include <linux/interrupt.h> |
| 13 | #include <linux/init.h> |
Russell King | 9973022 | 2009-03-25 10:21:35 +0000 | [diff] [blame] | 14 | #include <linux/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | |
| 16 | #include <pcmcia/ss.h> |
| 17 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 18 | #include <mach/hardware.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | #include <asm/hardware/sa1111.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | #include <asm/irq.h> |
| 21 | |
| 22 | #include "sa1111_generic.h" |
| 23 | |
Eric Miao | 08fa159 | 2009-12-26 12:32:38 +0800 | [diff] [blame^] | 24 | #define IDX_IRQ_S0_READY_NINT (0) |
| 25 | #define IDX_IRQ_S0_CD_VALID (1) |
| 26 | #define IDX_IRQ_S0_BVD1_STSCHG (2) |
| 27 | #define IDX_IRQ_S1_READY_NINT (3) |
| 28 | #define IDX_IRQ_S1_CD_VALID (4) |
| 29 | #define IDX_IRQ_S1_BVD1_STSCHG (5) |
| 30 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | static struct pcmcia_irqs irqs[] = { |
Eric Miao | 08fa159 | 2009-12-26 12:32:38 +0800 | [diff] [blame^] | 32 | { 0, NO_IRQ, "SA1111 PCMCIA card detect" }, |
| 33 | { 0, NO_IRQ, "SA1111 PCMCIA BVD1" }, |
| 34 | { 1, NO_IRQ, "SA1111 CF card detect" }, |
| 35 | { 1, NO_IRQ, "SA1111 CF BVD1" }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | }; |
| 37 | |
Russell King - ARM Linux | dabd146 | 2009-03-29 22:35:11 +0100 | [diff] [blame] | 38 | static int sa1111_pcmcia_hw_init(struct soc_pcmcia_socket *skt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs)); |
| 41 | } |
| 42 | |
Russell King - ARM Linux | dabd146 | 2009-03-29 22:35:11 +0100 | [diff] [blame] | 43 | static void sa1111_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | { |
| 45 | soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs)); |
| 46 | } |
| 47 | |
| 48 | void sa1111_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state) |
| 49 | { |
Russell King - ARM Linux | 701a5dc | 2009-03-29 19:42:44 +0100 | [diff] [blame] | 50 | struct sa1111_pcmcia_socket *s = to_skt(skt); |
| 51 | unsigned long status = sa1111_readl(s->dev->mapbase + SA1111_PCSR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | |
| 53 | switch (skt->nr) { |
| 54 | case 0: |
| 55 | state->detect = status & PCSR_S0_DETECT ? 0 : 1; |
| 56 | state->ready = status & PCSR_S0_READY ? 1 : 0; |
| 57 | state->bvd1 = status & PCSR_S0_BVD1 ? 1 : 0; |
| 58 | state->bvd2 = status & PCSR_S0_BVD2 ? 1 : 0; |
| 59 | state->wrprot = status & PCSR_S0_WP ? 1 : 0; |
| 60 | state->vs_3v = status & PCSR_S0_VS1 ? 0 : 1; |
| 61 | state->vs_Xv = status & PCSR_S0_VS2 ? 0 : 1; |
| 62 | break; |
| 63 | |
| 64 | case 1: |
| 65 | state->detect = status & PCSR_S1_DETECT ? 0 : 1; |
| 66 | state->ready = status & PCSR_S1_READY ? 1 : 0; |
| 67 | state->bvd1 = status & PCSR_S1_BVD1 ? 1 : 0; |
| 68 | state->bvd2 = status & PCSR_S1_BVD2 ? 1 : 0; |
| 69 | state->wrprot = status & PCSR_S1_WP ? 1 : 0; |
| 70 | state->vs_3v = status & PCSR_S1_VS1 ? 0 : 1; |
| 71 | state->vs_Xv = status & PCSR_S1_VS2 ? 0 : 1; |
| 72 | break; |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | int sa1111_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state) |
| 77 | { |
Russell King - ARM Linux | 701a5dc | 2009-03-29 19:42:44 +0100 | [diff] [blame] | 78 | struct sa1111_pcmcia_socket *s = to_skt(skt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | unsigned int pccr_skt_mask, pccr_set_mask, val; |
| 80 | unsigned long flags; |
| 81 | |
| 82 | switch (skt->nr) { |
| 83 | case 0: |
| 84 | pccr_skt_mask = PCCR_S0_RST|PCCR_S0_FLT|PCCR_S0_PWAITEN|PCCR_S0_PSE; |
| 85 | break; |
| 86 | |
| 87 | case 1: |
| 88 | pccr_skt_mask = PCCR_S1_RST|PCCR_S1_FLT|PCCR_S1_PWAITEN|PCCR_S1_PSE; |
| 89 | break; |
| 90 | |
| 91 | default: |
| 92 | return -1; |
| 93 | } |
| 94 | |
| 95 | pccr_set_mask = 0; |
| 96 | |
| 97 | if (state->Vcc != 0) |
| 98 | pccr_set_mask |= PCCR_S0_PWAITEN|PCCR_S1_PWAITEN; |
| 99 | if (state->Vcc == 50) |
| 100 | pccr_set_mask |= PCCR_S0_PSE|PCCR_S1_PSE; |
| 101 | if (state->flags & SS_RESET) |
| 102 | pccr_set_mask |= PCCR_S0_RST|PCCR_S1_RST; |
| 103 | if (state->flags & SS_OUTPUT_ENA) |
| 104 | pccr_set_mask |= PCCR_S0_FLT|PCCR_S1_FLT; |
| 105 | |
| 106 | local_irq_save(flags); |
Russell King - ARM Linux | 701a5dc | 2009-03-29 19:42:44 +0100 | [diff] [blame] | 107 | val = sa1111_readl(s->dev->mapbase + SA1111_PCCR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | val &= ~pccr_skt_mask; |
| 109 | val |= pccr_set_mask & pccr_skt_mask; |
Russell King - ARM Linux | 701a5dc | 2009-03-29 19:42:44 +0100 | [diff] [blame] | 110 | sa1111_writel(val, s->dev->mapbase + SA1111_PCCR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | local_irq_restore(flags); |
| 112 | |
| 113 | return 0; |
| 114 | } |
| 115 | |
| 116 | void sa1111_pcmcia_socket_init(struct soc_pcmcia_socket *skt) |
| 117 | { |
| 118 | soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs)); |
| 119 | } |
| 120 | |
Russell King - ARM Linux | dabd146 | 2009-03-29 22:35:11 +0100 | [diff] [blame] | 121 | static void sa1111_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | { |
| 123 | soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs)); |
| 124 | } |
| 125 | |
Russell King - ARM Linux | 701a5dc | 2009-03-29 19:42:44 +0100 | [diff] [blame] | 126 | int sa1111_pcmcia_add(struct sa1111_dev *dev, struct pcmcia_low_level *ops, |
| 127 | int (*add)(struct soc_pcmcia_socket *)) |
| 128 | { |
| 129 | struct sa1111_pcmcia_socket *s; |
| 130 | int i, ret = 0; |
| 131 | |
Russell King - ARM Linux | dabd146 | 2009-03-29 22:35:11 +0100 | [diff] [blame] | 132 | ops->hw_init = sa1111_pcmcia_hw_init; |
| 133 | ops->hw_shutdown = sa1111_pcmcia_hw_shutdown; |
| 134 | ops->socket_state = sa1111_pcmcia_socket_state; |
| 135 | ops->socket_suspend = sa1111_pcmcia_socket_suspend; |
| 136 | |
Russell King - ARM Linux | 701a5dc | 2009-03-29 19:42:44 +0100 | [diff] [blame] | 137 | for (i = 0; i < ops->nr; i++) { |
| 138 | s = kzalloc(sizeof(*s), GFP_KERNEL); |
| 139 | if (!s) |
| 140 | return -ENOMEM; |
| 141 | |
| 142 | s->soc.nr = ops->first + i; |
Russell King - ARM Linux | 701a5dc | 2009-03-29 19:42:44 +0100 | [diff] [blame] | 143 | s->soc.ops = ops; |
| 144 | s->soc.socket.owner = ops->owner; |
| 145 | s->soc.socket.dev.parent = &dev->dev; |
Eric Miao | 08fa159 | 2009-12-26 12:32:38 +0800 | [diff] [blame^] | 146 | s->soc.socket.pci_irq = s->soc.nr ? |
| 147 | dev->irq[IDX_IRQ_S0_READY_NINT] : |
| 148 | dev->irq[IDX_IRQ_S1_READY_NINT]; |
Russell King - ARM Linux | 701a5dc | 2009-03-29 19:42:44 +0100 | [diff] [blame] | 149 | s->dev = dev; |
| 150 | |
| 151 | ret = add(&s->soc); |
| 152 | if (ret == 0) { |
| 153 | s->next = dev_get_drvdata(&dev->dev); |
| 154 | dev_set_drvdata(&dev->dev, s); |
| 155 | } else |
| 156 | kfree(s); |
| 157 | } |
| 158 | |
| 159 | return ret; |
| 160 | } |
| 161 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | static int pcmcia_probe(struct sa1111_dev *dev) |
| 163 | { |
Russell King | f339ab3 | 2005-10-28 14:29:43 +0100 | [diff] [blame] | 164 | void __iomem *base; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | |
Russell King - ARM Linux | 701a5dc | 2009-03-29 19:42:44 +0100 | [diff] [blame] | 166 | dev_set_drvdata(&dev->dev, NULL); |
| 167 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | if (!request_mem_region(dev->res.start, 512, |
| 169 | SA1111_DRIVER_NAME(dev))) |
| 170 | return -EBUSY; |
| 171 | |
| 172 | base = dev->mapbase; |
| 173 | |
Eric Miao | 08fa159 | 2009-12-26 12:32:38 +0800 | [diff] [blame^] | 174 | /* Initialize PCMCIA IRQs */ |
| 175 | irqs[0].irq = dev->irq[IDX_IRQ_S0_CD_VALID]; |
| 176 | irqs[1].irq = dev->irq[IDX_IRQ_S0_BVD1_STSCHG]; |
| 177 | irqs[2].irq = dev->irq[IDX_IRQ_S1_CD_VALID]; |
| 178 | irqs[3].irq = dev->irq[IDX_IRQ_S1_BVD1_STSCHG]; |
| 179 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | /* |
| 181 | * Initialise the suspend state. |
| 182 | */ |
| 183 | sa1111_writel(PCSSR_S0_SLEEP | PCSSR_S1_SLEEP, base + SA1111_PCSSR); |
| 184 | sa1111_writel(PCCR_S0_FLT | PCCR_S1_FLT, base + SA1111_PCCR); |
| 185 | |
| 186 | #ifdef CONFIG_SA1100_BADGE4 |
| 187 | pcmcia_badge4_init(&dev->dev); |
| 188 | #endif |
| 189 | #ifdef CONFIG_SA1100_JORNADA720 |
| 190 | pcmcia_jornada720_init(&dev->dev); |
| 191 | #endif |
| 192 | #ifdef CONFIG_ARCH_LUBBOCK |
| 193 | pcmcia_lubbock_init(dev); |
| 194 | #endif |
| 195 | #ifdef CONFIG_ASSABET_NEPONSET |
| 196 | pcmcia_neponset_init(dev); |
| 197 | #endif |
| 198 | return 0; |
| 199 | } |
| 200 | |
| 201 | static int __devexit pcmcia_remove(struct sa1111_dev *dev) |
| 202 | { |
Russell King - ARM Linux | 701a5dc | 2009-03-29 19:42:44 +0100 | [diff] [blame] | 203 | struct sa1111_pcmcia_socket *next, *s = dev_get_drvdata(&dev->dev); |
Russell King - ARM Linux | be85458 | 2009-03-26 22:21:18 +0000 | [diff] [blame] | 204 | |
| 205 | dev_set_drvdata(&dev->dev, NULL); |
| 206 | |
Russell King - ARM Linux | 701a5dc | 2009-03-29 19:42:44 +0100 | [diff] [blame] | 207 | for (; next = s->next, s; s = next) { |
| 208 | soc_pcmcia_remove_one(&s->soc); |
| 209 | kfree(s); |
| 210 | } |
Russell King - ARM Linux | be85458 | 2009-03-26 22:21:18 +0000 | [diff] [blame] | 211 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | release_mem_region(dev->res.start, 512); |
| 213 | return 0; |
| 214 | } |
| 215 | |
Pavel Machek | 8bf2803 | 2005-04-16 15:25:26 -0700 | [diff] [blame] | 216 | static int pcmcia_suspend(struct sa1111_dev *dev, pm_message_t state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | { |
Rafael J. Wysocki | 827b464 | 2009-09-29 00:10:41 +0200 | [diff] [blame] | 218 | return pcmcia_socket_dev_suspend(&dev->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | } |
| 220 | |
| 221 | static int pcmcia_resume(struct sa1111_dev *dev) |
| 222 | { |
| 223 | return pcmcia_socket_dev_resume(&dev->dev); |
| 224 | } |
| 225 | |
| 226 | static struct sa1111_driver pcmcia_driver = { |
| 227 | .drv = { |
| 228 | .name = "sa1111-pcmcia", |
| 229 | }, |
| 230 | .devid = SA1111_DEVID_PCMCIA, |
| 231 | .probe = pcmcia_probe, |
| 232 | .remove = __devexit_p(pcmcia_remove), |
| 233 | .suspend = pcmcia_suspend, |
| 234 | .resume = pcmcia_resume, |
| 235 | }; |
| 236 | |
| 237 | static int __init sa1111_drv_pcmcia_init(void) |
| 238 | { |
| 239 | return sa1111_driver_register(&pcmcia_driver); |
| 240 | } |
| 241 | |
| 242 | static void __exit sa1111_drv_pcmcia_exit(void) |
| 243 | { |
| 244 | sa1111_driver_unregister(&pcmcia_driver); |
| 245 | } |
| 246 | |
Richard Purdie | f36598ae | 2005-09-03 19:39:25 +0100 | [diff] [blame] | 247 | fs_initcall(sa1111_drv_pcmcia_init); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | module_exit(sa1111_drv_pcmcia_exit); |
| 249 | |
| 250 | MODULE_DESCRIPTION("SA1111 PCMCIA card socket driver"); |
| 251 | MODULE_LICENSE("GPL"); |