1cb165c52SRabin Vincent /* 2c15def1cSLinus Walleij * Copyright (C) 2008-2009 ST-Ericsson SA 3cb165c52SRabin Vincent * 4cb165c52SRabin Vincent * Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com> 5cb165c52SRabin Vincent * 6cb165c52SRabin Vincent * This program is free software; you can redistribute it and/or modify 7cb165c52SRabin Vincent * it under the terms of the GNU General Public License version 2, as 8cb165c52SRabin Vincent * published by the Free Software Foundation. 9cb165c52SRabin Vincent * 10cb165c52SRabin Vincent */ 11cb165c52SRabin Vincent #include <linux/types.h> 12cb165c52SRabin Vincent #include <linux/init.h> 13cb165c52SRabin Vincent #include <linux/device.h> 14cb165c52SRabin Vincent #include <linux/amba/bus.h> 15aa90eb9dSRabin Vincent #include <linux/interrupt.h> 16cb165c52SRabin Vincent #include <linux/irq.h> 17cb165c52SRabin Vincent #include <linux/platform_device.h> 18cb165c52SRabin Vincent #include <linux/io.h> 19cb165c52SRabin Vincent 20cb165c52SRabin Vincent #include <asm/mach/map.h> 21aa90eb9dSRabin Vincent #include <asm/pmu.h> 220f332861SLinus Walleij #include <plat/gpio-nomadik.h> 23cb165c52SRabin Vincent #include <mach/hardware.h> 24cb165c52SRabin Vincent #include <mach/setup.h> 25cb165c52SRabin Vincent #include <mach/devices.h> 266f3f3c3fSMian Yousaf Kaukab #include <mach/usb.h> 27eda413c2SLee Jones #include <mach/db8500-regs.h> 28cb165c52SRabin Vincent 29fbf1eadfSRabin Vincent #include "devices-db8500.h" 306f3f3c3fSMian Yousaf Kaukab #include "ste-dma40-db8500.h" 31fbf1eadfSRabin Vincent 32cb165c52SRabin Vincent /* minimum static i/o mapping required to boot U8500 platforms */ 33abf12d71SRabin Vincent static struct map_desc u8500_uart_io_desc[] __initdata = { 3492389ca8SRabin Vincent __IO_DEV_DESC(U8500_UART0_BASE, SZ_4K), 3592389ca8SRabin Vincent __IO_DEV_DESC(U8500_UART2_BASE, SZ_4K), 36abf12d71SRabin Vincent }; 37abf12d71SRabin Vincent 38abf12d71SRabin Vincent static struct map_desc u8500_io_desc[] __initdata = { 39215e83d9SLinus Walleij /* SCU base also covers GIC CPU BASE and TWD with its 4K page */ 40215e83d9SLinus Walleij __IO_DEV_DESC(U8500_SCU_BASE, SZ_4K), 4192389ca8SRabin Vincent __IO_DEV_DESC(U8500_GIC_DIST_BASE, SZ_4K), 4292389ca8SRabin Vincent __IO_DEV_DESC(U8500_L2CC_BASE, SZ_4K), 4392389ca8SRabin Vincent __IO_DEV_DESC(U8500_MTU0_BASE, SZ_4K), 4492389ca8SRabin Vincent __IO_DEV_DESC(U8500_BACKUPRAM0_BASE, SZ_8K), 4592389ca8SRabin Vincent 4692389ca8SRabin Vincent __IO_DEV_DESC(U8500_CLKRST1_BASE, SZ_4K), 4792389ca8SRabin Vincent __IO_DEV_DESC(U8500_CLKRST2_BASE, SZ_4K), 4892389ca8SRabin Vincent __IO_DEV_DESC(U8500_CLKRST3_BASE, SZ_4K), 4992389ca8SRabin Vincent __IO_DEV_DESC(U8500_CLKRST5_BASE, SZ_4K), 5092389ca8SRabin Vincent __IO_DEV_DESC(U8500_CLKRST6_BASE, SZ_4K), 5192389ca8SRabin Vincent 52cb165c52SRabin Vincent __IO_DEV_DESC(U8500_PRCMU_BASE, SZ_4K), 53cb165c52SRabin Vincent __IO_DEV_DESC(U8500_GPIO0_BASE, SZ_4K), 54cb165c52SRabin Vincent __IO_DEV_DESC(U8500_GPIO1_BASE, SZ_4K), 55cb165c52SRabin Vincent __IO_DEV_DESC(U8500_GPIO2_BASE, SZ_4K), 56cb165c52SRabin Vincent __IO_DEV_DESC(U8500_GPIO3_BASE, SZ_4K), 57fcbd458eSMattias Wallin __IO_DEV_DESC(U8500_PRCMU_TCDM_BASE, SZ_4K), 58cb165c52SRabin Vincent }; 59cb165c52SRabin Vincent 60cb165c52SRabin Vincent void __init u8500_map_io(void) 61cb165c52SRabin Vincent { 62abf12d71SRabin Vincent /* 63abf12d71SRabin Vincent * Map the UARTs early so that the DEBUG_LL stuff continues to work. 64abf12d71SRabin Vincent */ 65abf12d71SRabin Vincent iotable_init(u8500_uart_io_desc, ARRAY_SIZE(u8500_uart_io_desc)); 66abf12d71SRabin Vincent 67abf12d71SRabin Vincent ux500_map_io(); 68abf12d71SRabin Vincent 69cb165c52SRabin Vincent iotable_init(u8500_io_desc, ARRAY_SIZE(u8500_io_desc)); 70cb165c52SRabin Vincent 7111871890SLinus Walleij _PRCMU_BASE = __io_address(U8500_PRCMU_BASE); 72cb165c52SRabin Vincent } 73cb165c52SRabin Vincent 74aa90eb9dSRabin Vincent static struct resource db8500_pmu_resources[] = { 75aa90eb9dSRabin Vincent [0] = { 76aa90eb9dSRabin Vincent .start = IRQ_DB8500_PMU, 77aa90eb9dSRabin Vincent .end = IRQ_DB8500_PMU, 78aa90eb9dSRabin Vincent .flags = IORESOURCE_IRQ, 79aa90eb9dSRabin Vincent }, 80aa90eb9dSRabin Vincent }; 81aa90eb9dSRabin Vincent 82aa90eb9dSRabin Vincent /* 83aa90eb9dSRabin Vincent * The PMU IRQ lines of two cores are wired together into a single interrupt. 84aa90eb9dSRabin Vincent * Bounce the interrupt to the other core if it's not ours. 85aa90eb9dSRabin Vincent */ 86aa90eb9dSRabin Vincent static irqreturn_t db8500_pmu_handler(int irq, void *dev, irq_handler_t handler) 87aa90eb9dSRabin Vincent { 88aa90eb9dSRabin Vincent irqreturn_t ret = handler(irq, dev); 89aa90eb9dSRabin Vincent int other = !smp_processor_id(); 90aa90eb9dSRabin Vincent 91aa90eb9dSRabin Vincent if (ret == IRQ_NONE && cpu_online(other)) 92aa90eb9dSRabin Vincent irq_set_affinity(irq, cpumask_of(other)); 93aa90eb9dSRabin Vincent 94aa90eb9dSRabin Vincent /* 95aa90eb9dSRabin Vincent * We should be able to get away with the amount of IRQ_NONEs we give, 96aa90eb9dSRabin Vincent * while still having the spurious IRQ detection code kick in if the 97aa90eb9dSRabin Vincent * interrupt really starts hitting spuriously. 98aa90eb9dSRabin Vincent */ 99aa90eb9dSRabin Vincent return ret; 100aa90eb9dSRabin Vincent } 101aa90eb9dSRabin Vincent 102aa90eb9dSRabin Vincent static struct arm_pmu_platdata db8500_pmu_platdata = { 103aa90eb9dSRabin Vincent .handle_irq = db8500_pmu_handler, 104aa90eb9dSRabin Vincent }; 105aa90eb9dSRabin Vincent 106aa90eb9dSRabin Vincent static struct platform_device db8500_pmu_device = { 107aa90eb9dSRabin Vincent .name = "arm-pmu", 108aa90eb9dSRabin Vincent .id = ARM_PMU_DEVICE_CPU, 109aa90eb9dSRabin Vincent .num_resources = ARRAY_SIZE(db8500_pmu_resources), 110aa90eb9dSRabin Vincent .resource = db8500_pmu_resources, 111aa90eb9dSRabin Vincent .dev.platform_data = &db8500_pmu_platdata, 112aa90eb9dSRabin Vincent }; 113aa90eb9dSRabin Vincent 1143df57bcfSMattias Nilsson static struct platform_device db8500_prcmu_device = { 1153df57bcfSMattias Nilsson .name = "db8500-prcmu", 1163df57bcfSMattias Nilsson }; 1173df57bcfSMattias Nilsson 118aa90eb9dSRabin Vincent static struct platform_device *platform_devs[] __initdata = { 119aa90eb9dSRabin Vincent &u8500_dma40_device, 120aa90eb9dSRabin Vincent &db8500_pmu_device, 1213df57bcfSMattias Nilsson &db8500_prcmu_device, 122aa90eb9dSRabin Vincent }; 123aa90eb9dSRabin Vincent 12401afdd13SRabin Vincent static resource_size_t __initdata db8500_gpio_base[] = { 12501afdd13SRabin Vincent U8500_GPIOBANK0_BASE, 12601afdd13SRabin Vincent U8500_GPIOBANK1_BASE, 12701afdd13SRabin Vincent U8500_GPIOBANK2_BASE, 12801afdd13SRabin Vincent U8500_GPIOBANK3_BASE, 12901afdd13SRabin Vincent U8500_GPIOBANK4_BASE, 13001afdd13SRabin Vincent U8500_GPIOBANK5_BASE, 13101afdd13SRabin Vincent U8500_GPIOBANK6_BASE, 13201afdd13SRabin Vincent U8500_GPIOBANK7_BASE, 13301afdd13SRabin Vincent U8500_GPIOBANK8_BASE, 13401afdd13SRabin Vincent }; 13501afdd13SRabin Vincent 13618403424SLee Jones static void __init db8500_add_gpios(struct device *parent) 13701afdd13SRabin Vincent { 13801afdd13SRabin Vincent struct nmk_gpio_platform_data pdata = { 139c15def1cSLinus Walleij .supports_sleepmode = true, 14001afdd13SRabin Vincent }; 14101afdd13SRabin Vincent 14218403424SLee Jones dbx500_add_gpios(parent, ARRAY_AND_SIZE(db8500_gpio_base), 14301afdd13SRabin Vincent IRQ_DB8500_GPIO0, &pdata); 14401afdd13SRabin Vincent } 14501afdd13SRabin Vincent 1466f3f3c3fSMian Yousaf Kaukab static int usb_db8500_rx_dma_cfg[] = { 1476f3f3c3fSMian Yousaf Kaukab DB8500_DMA_DEV38_USB_OTG_IEP_1_9, 1486f3f3c3fSMian Yousaf Kaukab DB8500_DMA_DEV37_USB_OTG_IEP_2_10, 1496f3f3c3fSMian Yousaf Kaukab DB8500_DMA_DEV36_USB_OTG_IEP_3_11, 1506f3f3c3fSMian Yousaf Kaukab DB8500_DMA_DEV19_USB_OTG_IEP_4_12, 1516f3f3c3fSMian Yousaf Kaukab DB8500_DMA_DEV18_USB_OTG_IEP_5_13, 1526f3f3c3fSMian Yousaf Kaukab DB8500_DMA_DEV17_USB_OTG_IEP_6_14, 1536f3f3c3fSMian Yousaf Kaukab DB8500_DMA_DEV16_USB_OTG_IEP_7_15, 1546f3f3c3fSMian Yousaf Kaukab DB8500_DMA_DEV39_USB_OTG_IEP_8 1556f3f3c3fSMian Yousaf Kaukab }; 1566f3f3c3fSMian Yousaf Kaukab 1576f3f3c3fSMian Yousaf Kaukab static int usb_db8500_tx_dma_cfg[] = { 1586f3f3c3fSMian Yousaf Kaukab DB8500_DMA_DEV38_USB_OTG_OEP_1_9, 1596f3f3c3fSMian Yousaf Kaukab DB8500_DMA_DEV37_USB_OTG_OEP_2_10, 1606f3f3c3fSMian Yousaf Kaukab DB8500_DMA_DEV36_USB_OTG_OEP_3_11, 1616f3f3c3fSMian Yousaf Kaukab DB8500_DMA_DEV19_USB_OTG_OEP_4_12, 1626f3f3c3fSMian Yousaf Kaukab DB8500_DMA_DEV18_USB_OTG_OEP_5_13, 1636f3f3c3fSMian Yousaf Kaukab DB8500_DMA_DEV17_USB_OTG_OEP_6_14, 1646f3f3c3fSMian Yousaf Kaukab DB8500_DMA_DEV16_USB_OTG_OEP_7_15, 1656f3f3c3fSMian Yousaf Kaukab DB8500_DMA_DEV39_USB_OTG_OEP_8 1666f3f3c3fSMian Yousaf Kaukab }; 1676f3f3c3fSMian Yousaf Kaukab 168eda413c2SLee Jones static const char *db8500_read_soc_id(void) 169eda413c2SLee Jones { 170eda413c2SLee Jones void __iomem *uid = __io_address(U8500_BB_UID_BASE); 171eda413c2SLee Jones 172eda413c2SLee Jones return kasprintf(GFP_KERNEL, "%08x%08x%08x%08x%08x", 173eda413c2SLee Jones readl((u32 *)uid+1), 174eda413c2SLee Jones readl((u32 *)uid+1), readl((u32 *)uid+2), 175eda413c2SLee Jones readl((u32 *)uid+3), readl((u32 *)uid+4)); 176eda413c2SLee Jones } 177eda413c2SLee Jones 178eda413c2SLee Jones static struct device * __init db8500_soc_device_init(void) 179eda413c2SLee Jones { 180eda413c2SLee Jones const char *soc_id = db8500_read_soc_id(); 181eda413c2SLee Jones 182eda413c2SLee Jones return ux500_soc_device_init(soc_id); 183eda413c2SLee Jones } 184eda413c2SLee Jones 185cb165c52SRabin Vincent /* 186cb165c52SRabin Vincent * This function is called from the board init 187cb165c52SRabin Vincent */ 18818403424SLee Jones struct device * __init u8500_init_devices(void) 189cb165c52SRabin Vincent { 190eda413c2SLee Jones struct device *parent; 191b024a0c8SLee Jones int i; 192eda413c2SLee Jones 193eda413c2SLee Jones parent = db8500_soc_device_init(); 194eda413c2SLee Jones 195eda413c2SLee Jones db8500_add_rtc(parent); 196eda413c2SLee Jones db8500_add_gpios(parent); 197eda413c2SLee Jones db8500_add_usb(parent, usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg); 198fbf1eadfSRabin Vincent 199b024a0c8SLee Jones platform_device_register_data(parent, 200b024a0c8SLee Jones "cpufreq-u8500", -1, NULL, 0); 201b024a0c8SLee Jones 202b024a0c8SLee Jones for (i = 0; i < ARRAY_SIZE(platform_devs); i++) 203b024a0c8SLee Jones platform_devs[i]->dev.parent = parent; 204b024a0c8SLee Jones 205cb165c52SRabin Vincent platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs)); 206cb165c52SRabin Vincent 207eda413c2SLee Jones return parent; 208cb165c52SRabin Vincent } 209