1b2441318SGreg Kroah-Hartman // SPDX-License-Identifier: GPL-2.0 21da177e4SLinus Torvalds /* 31da177e4SLinus Torvalds * linux/arch/arm/mach-sa1100/neponset.c 41da177e4SLinus Torvalds */ 59590e898SRussell King #include <linux/err.h> 6f85fac0eSRussell King #include <linux/gpio/driver.h> 7f85fac0eSRussell King #include <linux/gpio/gpio-reg.h> 81da177e4SLinus Torvalds #include <linux/init.h> 91da177e4SLinus Torvalds #include <linux/ioport.h> 10ced8d21cSRussell King #include <linux/irq.h> 1192e617d9SRussell King #include <linux/kernel.h> 12ae14c2e2SRussell King #include <linux/module.h> 136920b5a7SRussell King #include <linux/platform_data/sa11x0-serial.h> 14d052d1beSRussell King #include <linux/platform_device.h> 1551f93390SRussell King #include <linux/pm.h> 1692e617d9SRussell King #include <linux/serial_core.h> 17ae14c2e2SRussell King #include <linux/slab.h> 18b70661c7SArnd Bergmann #include <linux/smc91x.h> 191da177e4SLinus Torvalds 201da177e4SLinus Torvalds #include <asm/mach-types.h> 211da177e4SLinus Torvalds #include <asm/mach/map.h> 221da177e4SLinus Torvalds #include <asm/hardware/sa1111.h> 231da177e4SLinus Torvalds #include <asm/sizes.h> 241da177e4SLinus Torvalds 2592e617d9SRussell King #include <mach/hardware.h> 2692e617d9SRussell King #include <mach/assabet.h> 2792e617d9SRussell King #include <mach/neponset.h> 28f314f33bSRob Herring #include <mach/irqs.h> 2992e617d9SRussell King 30ced8d21cSRussell King #define NEP_IRQ_SMC91X 0 31ced8d21cSRussell King #define NEP_IRQ_USAR 1 32ced8d21cSRussell King #define NEP_IRQ_SA1111 2 33ced8d21cSRussell King #define NEP_IRQ_NR 3 34ced8d21cSRussell King 35f942b0fdSRussell King #define WHOAMI 0x00 36f942b0fdSRussell King #define LEDS 0x10 37f942b0fdSRussell King #define SWPK 0x20 38f942b0fdSRussell King #define IRR 0x24 39f942b0fdSRussell King #define KP_Y_IN 0x80 40f942b0fdSRussell King #define KP_X_OUT 0x90 41f942b0fdSRussell King #define NCR_0 0xa0 42f942b0fdSRussell King #define MDM_CTL_0 0xb0 43f942b0fdSRussell King #define MDM_CTL_1 0xb4 44f942b0fdSRussell King #define AUD_CTL 0xc0 45f942b0fdSRussell King 46f942b0fdSRussell King #define IRR_ETHERNET (1 << 0) 47f942b0fdSRussell King #define IRR_USAR (1 << 1) 48f942b0fdSRussell King #define IRR_SA1111 (1 << 2) 49f942b0fdSRussell King 50f85fac0eSRussell King #define NCR_NGPIO 7 51f85fac0eSRussell King 52f942b0fdSRussell King #define MDM_CTL0_RTS1 (1 << 0) 53f942b0fdSRussell King #define MDM_CTL0_DTR1 (1 << 1) 54f942b0fdSRussell King #define MDM_CTL0_RTS2 (1 << 2) 55f942b0fdSRussell King #define MDM_CTL0_DTR2 (1 << 3) 56f85fac0eSRussell King #define MDM_CTL0_NGPIO 4 57f942b0fdSRussell King 58f942b0fdSRussell King #define MDM_CTL1_CTS1 (1 << 0) 59f942b0fdSRussell King #define MDM_CTL1_DSR1 (1 << 1) 60f942b0fdSRussell King #define MDM_CTL1_DCD1 (1 << 2) 61f942b0fdSRussell King #define MDM_CTL1_CTS2 (1 << 3) 62f942b0fdSRussell King #define MDM_CTL1_DSR2 (1 << 4) 63f942b0fdSRussell King #define MDM_CTL1_DCD2 (1 << 5) 64f85fac0eSRussell King #define MDM_CTL1_NGPIO 6 65f942b0fdSRussell King 66f942b0fdSRussell King #define AUD_SEL_1341 (1 << 0) 67f942b0fdSRussell King #define AUD_MUTE_1341 (1 << 1) 68f85fac0eSRussell King #define AUD_NGPIO 2 69f942b0fdSRussell King 70bab50a35SRussell King extern void sa1110_mb_disable(void); 71bab50a35SRussell King 72f85fac0eSRussell King #define to_neponset_gpio_chip(x) container_of(x, struct neponset_gpio_chip, gc) 73f85fac0eSRussell King 74f85fac0eSRussell King static const char *neponset_ncr_names[] = { 75f85fac0eSRussell King "gp01_off", "tp_power", "ms_power", "enet_osc", 76f85fac0eSRussell King "spi_kb_wk_up", "a0vpp", "a1vpp" 77f85fac0eSRussell King }; 78f85fac0eSRussell King 79f85fac0eSRussell King static const char *neponset_mdmctl0_names[] = { 80f85fac0eSRussell King "rts3", "dtr3", "rts1", "dtr1", 81f85fac0eSRussell King }; 82f85fac0eSRussell King 83f85fac0eSRussell King static const char *neponset_mdmctl1_names[] = { 84f85fac0eSRussell King "cts3", "dsr3", "dcd3", "cts1", "dsr1", "dcd1" 85f85fac0eSRussell King }; 86f85fac0eSRussell King 87f85fac0eSRussell King static const char *neponset_aud_names[] = { 88f85fac0eSRussell King "sel_1341", "mute_1341", 89f85fac0eSRussell King }; 90f85fac0eSRussell King 91ae14c2e2SRussell King struct neponset_drvdata { 92f942b0fdSRussell King void __iomem *base; 939590e898SRussell King struct platform_device *sa1111; 949590e898SRussell King struct platform_device *smc91x; 95ced8d21cSRussell King unsigned irq_base; 96f85fac0eSRussell King struct gpio_chip *gpio[4]; 97ae14c2e2SRussell King }; 98ae14c2e2SRussell King 99f85fac0eSRussell King static struct neponset_drvdata *nep; 100f942b0fdSRussell King 1016ad1b614SRussell King void neponset_ncr_frob(unsigned int mask, unsigned int val) 1026ad1b614SRussell King { 103f85fac0eSRussell King struct neponset_drvdata *n = nep; 104f85fac0eSRussell King unsigned long m = mask, v = val; 105f942b0fdSRussell King 106f85fac0eSRussell King if (nep) 107f85fac0eSRussell King n->gpio[0]->set_multiple(n->gpio[0], &m, &v); 108f85fac0eSRussell King else 109f85fac0eSRussell King WARN(1, "nep unset\n"); 1106ad1b614SRussell King } 111ef0c1484SRussell King EXPORT_SYMBOL(neponset_ncr_frob); 1126ad1b614SRussell King 1131da177e4SLinus Torvalds static void neponset_set_mctrl(struct uart_port *port, u_int mctrl) 1141da177e4SLinus Torvalds { 115f85fac0eSRussell King struct neponset_drvdata *n = nep; 116f85fac0eSRussell King unsigned long mask, val = 0; 1171da177e4SLinus Torvalds 118f85fac0eSRussell King if (!n) 119f942b0fdSRussell King return; 120f942b0fdSRussell King 1211da177e4SLinus Torvalds if (port->mapbase == _Ser1UTCR0) { 122f85fac0eSRussell King mask = MDM_CTL0_RTS2 | MDM_CTL0_DTR2; 1231da177e4SLinus Torvalds 124f85fac0eSRussell King if (!(mctrl & TIOCM_RTS)) 125f85fac0eSRussell King val |= MDM_CTL0_RTS2; 126f85fac0eSRussell King 127f85fac0eSRussell King if (!(mctrl & TIOCM_DTR)) 128f85fac0eSRussell King val |= MDM_CTL0_DTR2; 1291da177e4SLinus Torvalds } else if (port->mapbase == _Ser3UTCR0) { 130f85fac0eSRussell King mask = MDM_CTL0_RTS1 | MDM_CTL0_DTR1; 1311da177e4SLinus Torvalds 132f85fac0eSRussell King if (!(mctrl & TIOCM_RTS)) 133f85fac0eSRussell King val |= MDM_CTL0_RTS1; 134f85fac0eSRussell King 135f85fac0eSRussell King if (!(mctrl & TIOCM_DTR)) 136f85fac0eSRussell King val |= MDM_CTL0_DTR1; 1371da177e4SLinus Torvalds } 1381da177e4SLinus Torvalds 139f85fac0eSRussell King n->gpio[1]->set_multiple(n->gpio[1], &mask, &val); 1401da177e4SLinus Torvalds } 1411da177e4SLinus Torvalds 1421da177e4SLinus Torvalds static u_int neponset_get_mctrl(struct uart_port *port) 1431da177e4SLinus Torvalds { 144f85fac0eSRussell King void __iomem *base = nep->base; 1451da177e4SLinus Torvalds u_int ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR; 146f942b0fdSRussell King u_int mdm_ctl1; 1471da177e4SLinus Torvalds 148f942b0fdSRussell King if (!base) 149f942b0fdSRussell King return ret; 150f942b0fdSRussell King 151f942b0fdSRussell King mdm_ctl1 = readb_relaxed(base + MDM_CTL_1); 1521da177e4SLinus Torvalds if (port->mapbase == _Ser1UTCR0) { 1531da177e4SLinus Torvalds if (mdm_ctl1 & MDM_CTL1_DCD2) 1541da177e4SLinus Torvalds ret &= ~TIOCM_CD; 1551da177e4SLinus Torvalds if (mdm_ctl1 & MDM_CTL1_CTS2) 1561da177e4SLinus Torvalds ret &= ~TIOCM_CTS; 1571da177e4SLinus Torvalds if (mdm_ctl1 & MDM_CTL1_DSR2) 1581da177e4SLinus Torvalds ret &= ~TIOCM_DSR; 1591da177e4SLinus Torvalds } else if (port->mapbase == _Ser3UTCR0) { 1601da177e4SLinus Torvalds if (mdm_ctl1 & MDM_CTL1_DCD1) 1611da177e4SLinus Torvalds ret &= ~TIOCM_CD; 1621da177e4SLinus Torvalds if (mdm_ctl1 & MDM_CTL1_CTS1) 1631da177e4SLinus Torvalds ret &= ~TIOCM_CTS; 1641da177e4SLinus Torvalds if (mdm_ctl1 & MDM_CTL1_DSR1) 1651da177e4SLinus Torvalds ret &= ~TIOCM_DSR; 1661da177e4SLinus Torvalds } 1671da177e4SLinus Torvalds 1681da177e4SLinus Torvalds return ret; 1691da177e4SLinus Torvalds } 1701da177e4SLinus Torvalds 171351a102dSGreg Kroah-Hartman static struct sa1100_port_fns neponset_port_fns = { 1721da177e4SLinus Torvalds .set_mctrl = neponset_set_mctrl, 1731da177e4SLinus Torvalds .get_mctrl = neponset_get_mctrl, 1741da177e4SLinus Torvalds }; 1751da177e4SLinus Torvalds 17671045520SRussell King /* 17792e617d9SRussell King * Install handler for Neponset IRQ. Note that we have to loop here 17892e617d9SRussell King * since the ETHERNET and USAR IRQs are level based, and we need to 17992e617d9SRussell King * ensure that the IRQ signal is deasserted before returning. This 18092e617d9SRussell King * is rather unfortunate. 18192e617d9SRussell King */ 182bd0b9ac4SThomas Gleixner static void neponset_irq_handler(struct irq_desc *desc) 18392e617d9SRussell King { 184ced8d21cSRussell King struct neponset_drvdata *d = irq_desc_get_handler_data(desc); 18592e617d9SRussell King unsigned int irr; 18692e617d9SRussell King 18792e617d9SRussell King while (1) { 18892e617d9SRussell King /* 18992e617d9SRussell King * Acknowledge the parent IRQ. 19092e617d9SRussell King */ 19192e617d9SRussell King desc->irq_data.chip->irq_ack(&desc->irq_data); 19292e617d9SRussell King 19392e617d9SRussell King /* 19492e617d9SRussell King * Read the interrupt reason register. Let's have all 19592e617d9SRussell King * active IRQ bits high. Note: there is a typo in the 19692e617d9SRussell King * Neponset user's guide for the SA1111 IRR level. 19792e617d9SRussell King */ 198f942b0fdSRussell King irr = readb_relaxed(d->base + IRR); 199f942b0fdSRussell King irr ^= IRR_ETHERNET | IRR_USAR; 20092e617d9SRussell King 20192e617d9SRussell King if ((irr & (IRR_ETHERNET | IRR_USAR | IRR_SA1111)) == 0) 20292e617d9SRussell King break; 20392e617d9SRussell King 20492e617d9SRussell King /* 20592e617d9SRussell King * Since there is no individual mask, we have to 20692e617d9SRussell King * mask the parent IRQ. This is safe, since we'll 20792e617d9SRussell King * recheck the register for any pending IRQs. 20892e617d9SRussell King */ 20992e617d9SRussell King if (irr & (IRR_ETHERNET | IRR_USAR)) { 21092e617d9SRussell King desc->irq_data.chip->irq_mask(&desc->irq_data); 21192e617d9SRussell King 21292e617d9SRussell King /* 21392e617d9SRussell King * Ack the interrupt now to prevent re-entering 21492e617d9SRussell King * this neponset handler. Again, this is safe 21592e617d9SRussell King * since we'll check the IRR register prior to 21692e617d9SRussell King * leaving. 21792e617d9SRussell King */ 21892e617d9SRussell King desc->irq_data.chip->irq_ack(&desc->irq_data); 21992e617d9SRussell King 220ced8d21cSRussell King if (irr & IRR_ETHERNET) 221ced8d21cSRussell King generic_handle_irq(d->irq_base + NEP_IRQ_SMC91X); 22292e617d9SRussell King 223ced8d21cSRussell King if (irr & IRR_USAR) 224ced8d21cSRussell King generic_handle_irq(d->irq_base + NEP_IRQ_USAR); 22592e617d9SRussell King 22692e617d9SRussell King desc->irq_data.chip->irq_unmask(&desc->irq_data); 22792e617d9SRussell King } 22892e617d9SRussell King 229ced8d21cSRussell King if (irr & IRR_SA1111) 230ced8d21cSRussell King generic_handle_irq(d->irq_base + NEP_IRQ_SA1111); 23192e617d9SRussell King } 23292e617d9SRussell King } 23392e617d9SRussell King 234ced8d21cSRussell King /* Yes, we really do not have any kind of masking or unmasking */ 23571045520SRussell King static void nochip_noop(struct irq_data *irq) 23671045520SRussell King { 23771045520SRussell King } 23871045520SRussell King 23971045520SRussell King static struct irq_chip nochip = { 24071045520SRussell King .name = "neponset", 24171045520SRussell King .irq_ack = nochip_noop, 24271045520SRussell King .irq_mask = nochip_noop, 24371045520SRussell King .irq_unmask = nochip_noop, 24471045520SRussell King }; 24571045520SRussell King 246f85fac0eSRussell King static int neponset_init_gpio(struct gpio_chip **gcp, 247f85fac0eSRussell King struct device *dev, const char *label, void __iomem *reg, 248f85fac0eSRussell King unsigned num, bool in, const char *const * names) 249f85fac0eSRussell King { 250f85fac0eSRussell King struct gpio_chip *gc; 251f85fac0eSRussell King 252f85fac0eSRussell King gc = gpio_reg_init(dev, reg, -1, num, label, in ? 0xffffffff : 0, 253f85fac0eSRussell King readl_relaxed(reg), names, NULL, NULL); 254f85fac0eSRussell King if (IS_ERR(gc)) 255f85fac0eSRussell King return PTR_ERR(gc); 256f85fac0eSRussell King 257f85fac0eSRussell King *gcp = gc; 258f85fac0eSRussell King 259f85fac0eSRussell King return 0; 260f85fac0eSRussell King } 261f85fac0eSRussell King 26292e617d9SRussell King static struct sa1111_platform_data sa1111_info = { 26307be45f5SRussell King .disable_devs = SA1111_DEVID_PS2_MSE, 26492e617d9SRussell King }; 26592e617d9SRussell King 266351a102dSGreg Kroah-Hartman static int neponset_probe(struct platform_device *dev) 2671da177e4SLinus Torvalds { 268ae14c2e2SRussell King struct neponset_drvdata *d; 269f942b0fdSRussell King struct resource *nep_res, *sa1111_res, *smc91x_res; 270ced8d21cSRussell King struct resource sa1111_resources[] = { 271ced8d21cSRussell King DEFINE_RES_MEM(0x40000000, SZ_8K), 272ced8d21cSRussell King { .flags = IORESOURCE_IRQ }, 273ced8d21cSRussell King }; 2749590e898SRussell King struct platform_device_info sa1111_devinfo = { 2759590e898SRussell King .parent = &dev->dev, 2769590e898SRussell King .name = "sa1111", 2779590e898SRussell King .id = 0, 2789590e898SRussell King .res = sa1111_resources, 2799590e898SRussell King .num_res = ARRAY_SIZE(sa1111_resources), 2809590e898SRussell King .data = &sa1111_info, 2819590e898SRussell King .size_data = sizeof(sa1111_info), 2829590e898SRussell King .dma_mask = 0xffffffffUL, 2839590e898SRussell King }; 284ced8d21cSRussell King struct resource smc91x_resources[] = { 285ced8d21cSRussell King DEFINE_RES_MEM_NAMED(SA1100_CS3_PHYS, 286ced8d21cSRussell King 0x02000000, "smc91x-regs"), 287ced8d21cSRussell King DEFINE_RES_MEM_NAMED(SA1100_CS3_PHYS + 0x02000000, 288ced8d21cSRussell King 0x02000000, "smc91x-attrib"), 289ced8d21cSRussell King { .flags = IORESOURCE_IRQ }, 290ced8d21cSRussell King }; 291b70661c7SArnd Bergmann struct smc91x_platdata smc91x_platdata = { 292b70661c7SArnd Bergmann .flags = SMC91X_USE_8BIT | SMC91X_IO_SHIFT_2 | SMC91X_NOWAIT, 293b70661c7SArnd Bergmann }; 2949590e898SRussell King struct platform_device_info smc91x_devinfo = { 2959590e898SRussell King .parent = &dev->dev, 2969590e898SRussell King .name = "smc91x", 2979590e898SRussell King .id = 0, 2989590e898SRussell King .res = smc91x_resources, 2999590e898SRussell King .num_res = ARRAY_SIZE(smc91x_resources), 30004b91701SArnd Bergmann .data = &smc91x_platdata, 30104b91701SArnd Bergmann .size_data = sizeof(smc91x_platdata), 3029590e898SRussell King }; 303b6bdfcf5SRussell King int ret, irq; 304b6bdfcf5SRussell King 305f85fac0eSRussell King if (nep) 306f942b0fdSRussell King return -EBUSY; 307f942b0fdSRussell King 308b6bdfcf5SRussell King irq = ret = platform_get_irq(dev, 0); 309b6bdfcf5SRussell King if (ret < 0) 310b6bdfcf5SRussell King goto err_alloc; 311ae14c2e2SRussell King 312f942b0fdSRussell King nep_res = platform_get_resource(dev, IORESOURCE_MEM, 0); 313d2e539a5SRussell King smc91x_res = platform_get_resource(dev, IORESOURCE_MEM, 1); 314d2e539a5SRussell King sa1111_res = platform_get_resource(dev, IORESOURCE_MEM, 2); 315f942b0fdSRussell King if (!nep_res || !smc91x_res || !sa1111_res) { 316d2e539a5SRussell King ret = -ENXIO; 317d2e539a5SRussell King goto err_alloc; 318d2e539a5SRussell King } 319d2e539a5SRussell King 320ae14c2e2SRussell King d = kzalloc(sizeof(*d), GFP_KERNEL); 321ae14c2e2SRussell King if (!d) { 322ae14c2e2SRussell King ret = -ENOMEM; 323ae14c2e2SRussell King goto err_alloc; 324ae14c2e2SRussell King } 325ae14c2e2SRussell King 326f942b0fdSRussell King d->base = ioremap(nep_res->start, SZ_4K); 327f942b0fdSRussell King if (!d->base) { 328f942b0fdSRussell King ret = -ENOMEM; 329f942b0fdSRussell King goto err_ioremap; 330f942b0fdSRussell King } 331f942b0fdSRussell King 332f942b0fdSRussell King if (readb_relaxed(d->base + WHOAMI) != 0x11) { 333f942b0fdSRussell King dev_warn(&dev->dev, "Neponset board detected, but wrong ID: %02x\n", 334f942b0fdSRussell King readb_relaxed(d->base + WHOAMI)); 335f942b0fdSRussell King ret = -ENODEV; 336f942b0fdSRussell King goto err_id; 337f942b0fdSRussell King } 338f942b0fdSRussell King 339ced8d21cSRussell King ret = irq_alloc_descs(-1, IRQ_BOARD_START, NEP_IRQ_NR, -1); 340ced8d21cSRussell King if (ret <= 0) { 341ced8d21cSRussell King dev_err(&dev->dev, "unable to allocate %u irqs: %d\n", 342ced8d21cSRussell King NEP_IRQ_NR, ret); 343ced8d21cSRussell King if (ret == 0) 344ced8d21cSRussell King ret = -ENOMEM; 345ced8d21cSRussell King goto err_irq_alloc; 346ced8d21cSRussell King } 3471da177e4SLinus Torvalds 348ced8d21cSRussell King d->irq_base = ret; 349ced8d21cSRussell King 350ced8d21cSRussell King irq_set_chip_and_handler(d->irq_base + NEP_IRQ_SMC91X, &nochip, 351ced8d21cSRussell King handle_simple_irq); 352e8d36d5dSRob Herring irq_clear_status_flags(d->irq_base + NEP_IRQ_SMC91X, IRQ_NOREQUEST | IRQ_NOPROBE); 353ced8d21cSRussell King irq_set_chip_and_handler(d->irq_base + NEP_IRQ_USAR, &nochip, 354ced8d21cSRussell King handle_simple_irq); 355e8d36d5dSRob Herring irq_clear_status_flags(d->irq_base + NEP_IRQ_USAR, IRQ_NOREQUEST | IRQ_NOPROBE); 356ced8d21cSRussell King irq_set_chip(d->irq_base + NEP_IRQ_SA1111, &nochip); 357ced8d21cSRussell King 358b6bdfcf5SRussell King irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING); 359056c0acfSRussell King irq_set_chained_handler_and_data(irq, neponset_irq_handler, d); 3601da177e4SLinus Torvalds 361f85fac0eSRussell King /* Disable GPIO 0/1 drivers so the buttons work on the Assabet */ 362f85fac0eSRussell King writeb_relaxed(NCR_GP01_OFF, d->base + NCR_0); 363f85fac0eSRussell King 364f85fac0eSRussell King neponset_init_gpio(&d->gpio[0], &dev->dev, "neponset-ncr", 365f85fac0eSRussell King d->base + NCR_0, NCR_NGPIO, false, 366f85fac0eSRussell King neponset_ncr_names); 367f85fac0eSRussell King neponset_init_gpio(&d->gpio[1], &dev->dev, "neponset-mdm-ctl0", 368f85fac0eSRussell King d->base + MDM_CTL_0, MDM_CTL0_NGPIO, false, 369f85fac0eSRussell King neponset_mdmctl0_names); 370f85fac0eSRussell King neponset_init_gpio(&d->gpio[2], &dev->dev, "neponset-mdm-ctl1", 371f85fac0eSRussell King d->base + MDM_CTL_1, MDM_CTL1_NGPIO, true, 372f85fac0eSRussell King neponset_mdmctl1_names); 373f85fac0eSRussell King neponset_init_gpio(&d->gpio[3], &dev->dev, "neponset-aud-ctl", 374f85fac0eSRussell King d->base + AUD_CTL, AUD_NGPIO, false, 375f85fac0eSRussell King neponset_aud_names); 376f85fac0eSRussell King 3771da177e4SLinus Torvalds /* 378ced8d21cSRussell King * We would set IRQ_GPIO25 to be a wake-up IRQ, but unfortunately 379ced8d21cSRussell King * something on the Neponset activates this IRQ on sleep (eth?) 3801da177e4SLinus Torvalds */ 3811da177e4SLinus Torvalds #if 0 382b6bdfcf5SRussell King enable_irq_wake(irq); 3831da177e4SLinus Torvalds #endif 3841da177e4SLinus Torvalds 385ced8d21cSRussell King dev_info(&dev->dev, "Neponset daughter board, providing IRQ%u-%u\n", 386ced8d21cSRussell King d->irq_base, d->irq_base + NEP_IRQ_NR - 1); 387f85fac0eSRussell King nep = d; 3881da177e4SLinus Torvalds 389ced8d21cSRussell King sa1100_register_uart_fns(&neponset_port_fns); 390ced8d21cSRussell King 391bab50a35SRussell King /* Ensure that the memory bus request/grant signals are setup */ 392bab50a35SRussell King sa1110_mb_disable(); 393bab50a35SRussell King 394d2e539a5SRussell King sa1111_resources[0].parent = sa1111_res; 395ced8d21cSRussell King sa1111_resources[1].start = d->irq_base + NEP_IRQ_SA1111; 396ced8d21cSRussell King sa1111_resources[1].end = d->irq_base + NEP_IRQ_SA1111; 3979590e898SRussell King d->sa1111 = platform_device_register_full(&sa1111_devinfo); 398ced8d21cSRussell King 399d2e539a5SRussell King smc91x_resources[0].parent = smc91x_res; 400d2e539a5SRussell King smc91x_resources[1].parent = smc91x_res; 401ced8d21cSRussell King smc91x_resources[2].start = d->irq_base + NEP_IRQ_SMC91X; 402ced8d21cSRussell King smc91x_resources[2].end = d->irq_base + NEP_IRQ_SMC91X; 4039590e898SRussell King d->smc91x = platform_device_register_full(&smc91x_devinfo); 4049590e898SRussell King 405ae14c2e2SRussell King platform_set_drvdata(dev, d); 406ae14c2e2SRussell King 407ae14c2e2SRussell King return 0; 408ae14c2e2SRussell King 409ced8d21cSRussell King err_irq_alloc: 410f942b0fdSRussell King err_id: 411f942b0fdSRussell King iounmap(d->base); 412f942b0fdSRussell King err_ioremap: 413ced8d21cSRussell King kfree(d); 414ae14c2e2SRussell King err_alloc: 415ae14c2e2SRussell King return ret; 416ae14c2e2SRussell King } 417ae14c2e2SRussell King 418351a102dSGreg Kroah-Hartman static int neponset_remove(struct platform_device *dev) 419ae14c2e2SRussell King { 420ae14c2e2SRussell King struct neponset_drvdata *d = platform_get_drvdata(dev); 421b6bdfcf5SRussell King int irq = platform_get_irq(dev, 0); 422ae14c2e2SRussell King 4239590e898SRussell King if (!IS_ERR(d->sa1111)) 4249590e898SRussell King platform_device_unregister(d->sa1111); 4259590e898SRussell King if (!IS_ERR(d->smc91x)) 4269590e898SRussell King platform_device_unregister(d->smc91x); 427b6bdfcf5SRussell King irq_set_chained_handler(irq, NULL); 428ced8d21cSRussell King irq_free_descs(d->irq_base, NEP_IRQ_NR); 429f85fac0eSRussell King nep = NULL; 430f942b0fdSRussell King iounmap(d->base); 431ae14c2e2SRussell King kfree(d); 432ae14c2e2SRussell King 4331da177e4SLinus Torvalds return 0; 4341da177e4SLinus Torvalds } 4351da177e4SLinus Torvalds 43651f93390SRussell King #ifdef CONFIG_PM_SLEEP 43751f93390SRussell King static int neponset_resume(struct device *dev) 4381da177e4SLinus Torvalds { 43951f93390SRussell King struct neponset_drvdata *d = dev_get_drvdata(dev); 440f85fac0eSRussell King int i, ret = 0; 441ae14c2e2SRussell King 442f85fac0eSRussell King for (i = 0; i < ARRAY_SIZE(d->gpio); i++) { 443f85fac0eSRussell King ret = gpio_reg_resume(d->gpio[i]); 444f85fac0eSRussell King if (ret) 445f85fac0eSRussell King break; 446f85fac0eSRussell King } 4471da177e4SLinus Torvalds 448f85fac0eSRussell King return ret; 4491da177e4SLinus Torvalds } 4501da177e4SLinus Torvalds 45151f93390SRussell King static const struct dev_pm_ops neponset_pm_ops = { 45251f93390SRussell King .resume_noirq = neponset_resume, 45351f93390SRussell King .restore_noirq = neponset_resume, 45451f93390SRussell King }; 45551f93390SRussell King #define PM_OPS &neponset_pm_ops 4561da177e4SLinus Torvalds #else 45751f93390SRussell King #define PM_OPS NULL 4581da177e4SLinus Torvalds #endif 4591da177e4SLinus Torvalds 4603ae5eaecSRussell King static struct platform_driver neponset_device_driver = { 4611da177e4SLinus Torvalds .probe = neponset_probe, 462351a102dSGreg Kroah-Hartman .remove = neponset_remove, 4633ae5eaecSRussell King .driver = { 4643ae5eaecSRussell King .name = "neponset", 46551f93390SRussell King .pm = PM_OPS, 4663ae5eaecSRussell King }, 4671da177e4SLinus Torvalds }; 4681da177e4SLinus Torvalds 4691da177e4SLinus Torvalds static int __init neponset_init(void) 4701da177e4SLinus Torvalds { 471bab50a35SRussell King return platform_driver_register(&neponset_device_driver); 4721da177e4SLinus Torvalds } 4731da177e4SLinus Torvalds 4741da177e4SLinus Torvalds subsys_initcall(neponset_init); 475