Srinidhi Kasagar | aa44ef4 | 2009-11-28 08:17:18 +0100 | [diff] [blame] | 1 | /* |
Linus Walleij | c15def1 | 2011-12-15 13:38:40 +0100 | [diff] [blame] | 2 | * Copyright (C) 2008-2009 ST-Ericsson SA |
Srinidhi Kasagar | aa44ef4 | 2009-11-28 08:17:18 +0100 | [diff] [blame] | 3 | * |
| 4 | * Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2, as |
| 8 | * published by the Free Software Foundation. |
| 9 | * |
| 10 | */ |
| 11 | #include <linux/types.h> |
| 12 | #include <linux/init.h> |
| 13 | #include <linux/device.h> |
| 14 | #include <linux/amba/bus.h> |
Rabin Vincent | aa90eb9 | 2011-02-08 09:24:37 +0530 | [diff] [blame] | 15 | #include <linux/interrupt.h> |
Srinidhi Kasagar | aa44ef4 | 2009-11-28 08:17:18 +0100 | [diff] [blame] | 16 | #include <linux/irq.h> |
| 17 | #include <linux/platform_device.h> |
Rabin Vincent | cc2c133 | 2010-03-01 05:03:31 +0100 | [diff] [blame] | 18 | #include <linux/io.h> |
Lee Jones | 3a8e39c | 2012-07-06 12:46:23 +0200 | [diff] [blame] | 19 | #include <linux/mfd/abx500/ab8500.h> |
Srinidhi Kasagar | aa44ef4 | 2009-11-28 08:17:18 +0100 | [diff] [blame] | 20 | |
Srinidhi Kasagar | aa44ef4 | 2009-11-28 08:17:18 +0100 | [diff] [blame] | 21 | #include <asm/mach/map.h> |
Rabin Vincent | aa90eb9 | 2011-02-08 09:24:37 +0530 | [diff] [blame] | 22 | #include <asm/pmu.h> |
Linus Walleij | 0f33286 | 2011-08-22 08:33:30 +0100 | [diff] [blame] | 23 | #include <plat/gpio-nomadik.h> |
Srinidhi Kasagar | aa44ef4 | 2009-11-28 08:17:18 +0100 | [diff] [blame] | 24 | #include <mach/hardware.h> |
Rabin Vincent | cc2c133 | 2010-03-01 05:03:31 +0100 | [diff] [blame] | 25 | #include <mach/setup.h> |
Rabin Vincent | 5b1f7dd | 2010-05-03 08:25:52 +0100 | [diff] [blame] | 26 | #include <mach/devices.h> |
Mian Yousaf Kaukab | 6f3f3c3f | 2011-01-21 18:21:50 +0100 | [diff] [blame] | 27 | #include <mach/usb.h> |
Lee Jones | eda413c | 2012-02-06 11:22:24 -0800 | [diff] [blame] | 28 | #include <mach/db8500-regs.h> |
Rabin Vincent | 94bdc0e | 2010-03-03 04:54:37 +0100 | [diff] [blame] | 29 | |
Rabin Vincent | fbf1eadf | 2010-09-29 19:46:32 +0530 | [diff] [blame] | 30 | #include "devices-db8500.h" |
Mian Yousaf Kaukab | 6f3f3c3f | 2011-01-21 18:21:50 +0100 | [diff] [blame] | 31 | #include "ste-dma40-db8500.h" |
Rabin Vincent | fbf1eadf | 2010-09-29 19:46:32 +0530 | [diff] [blame] | 32 | |
Srinidhi Kasagar | aa44ef4 | 2009-11-28 08:17:18 +0100 | [diff] [blame] | 33 | /* minimum static i/o mapping required to boot U8500 platforms */ |
Rabin Vincent | abf12d7 | 2010-12-08 11:07:59 +0530 | [diff] [blame] | 34 | static struct map_desc u8500_uart_io_desc[] __initdata = { |
Rabin Vincent | 92389ca | 2010-12-08 11:07:57 +0530 | [diff] [blame] | 35 | __IO_DEV_DESC(U8500_UART0_BASE, SZ_4K), |
| 36 | __IO_DEV_DESC(U8500_UART2_BASE, SZ_4K), |
Rabin Vincent | abf12d7 | 2010-12-08 11:07:59 +0530 | [diff] [blame] | 37 | }; |
Linus Walleij | bc71c09 | 2012-01-23 11:54:44 +0100 | [diff] [blame] | 38 | /* U8500 and U9540 common io_desc */ |
| 39 | static struct map_desc u8500_common_io_desc[] __initdata = { |
Linus Walleij | 215e83d | 2011-12-14 18:15:42 +0100 | [diff] [blame] | 40 | /* SCU base also covers GIC CPU BASE and TWD with its 4K page */ |
| 41 | __IO_DEV_DESC(U8500_SCU_BASE, SZ_4K), |
Rabin Vincent | 92389ca | 2010-12-08 11:07:57 +0530 | [diff] [blame] | 42 | __IO_DEV_DESC(U8500_GIC_DIST_BASE, SZ_4K), |
| 43 | __IO_DEV_DESC(U8500_L2CC_BASE, SZ_4K), |
Rabin Vincent | 92389ca | 2010-12-08 11:07:57 +0530 | [diff] [blame] | 44 | __IO_DEV_DESC(U8500_MTU0_BASE, SZ_4K), |
Rabin Vincent | 92389ca | 2010-12-08 11:07:57 +0530 | [diff] [blame] | 45 | __IO_DEV_DESC(U8500_BACKUPRAM0_BASE, SZ_8K), |
| 46 | |
| 47 | __IO_DEV_DESC(U8500_CLKRST1_BASE, SZ_4K), |
| 48 | __IO_DEV_DESC(U8500_CLKRST2_BASE, SZ_4K), |
| 49 | __IO_DEV_DESC(U8500_CLKRST3_BASE, SZ_4K), |
| 50 | __IO_DEV_DESC(U8500_CLKRST5_BASE, SZ_4K), |
| 51 | __IO_DEV_DESC(U8500_CLKRST6_BASE, SZ_4K), |
| 52 | |
Rabin Vincent | c9c0957 | 2010-05-03 07:34:53 +0100 | [diff] [blame] | 53 | __IO_DEV_DESC(U8500_GPIO0_BASE, SZ_4K), |
Rabin Vincent | 94bdc0e | 2010-03-03 04:54:37 +0100 | [diff] [blame] | 54 | __IO_DEV_DESC(U8500_GPIO1_BASE, SZ_4K), |
| 55 | __IO_DEV_DESC(U8500_GPIO2_BASE, SZ_4K), |
| 56 | __IO_DEV_DESC(U8500_GPIO3_BASE, SZ_4K), |
Michel Jaouen | ee9581d | 2012-02-01 10:30:53 +0100 | [diff] [blame] | 57 | }; |
| 58 | |
| 59 | /* U8500 IO map specific description */ |
| 60 | static struct map_desc u8500_io_desc[] __initdata = { |
| 61 | __IO_DEV_DESC(U8500_PRCMU_BASE, SZ_4K), |
Mattias Wallin | fcbd458 | 2010-12-02 16:20:42 +0100 | [diff] [blame] | 62 | __IO_DEV_DESC(U8500_PRCMU_TCDM_BASE, SZ_4K), |
Michel Jaouen | ee9581d | 2012-02-01 10:30:53 +0100 | [diff] [blame] | 63 | |
| 64 | }; |
| 65 | |
| 66 | /* U9540 IO map specific description */ |
| 67 | static struct map_desc u9540_io_desc[] __initdata = { |
| 68 | __IO_DEV_DESC(U8500_PRCMU_BASE, SZ_4K + SZ_8K), |
| 69 | __IO_DEV_DESC(U8500_PRCMU_TCDM_BASE, SZ_4K + SZ_8K), |
Rabin Vincent | 75a36ee | 2010-03-01 05:05:56 +0100 | [diff] [blame] | 70 | }; |
| 71 | |
Srinidhi Kasagar | aa44ef4 | 2009-11-28 08:17:18 +0100 | [diff] [blame] | 72 | void __init u8500_map_io(void) |
| 73 | { |
Rabin Vincent | abf12d7 | 2010-12-08 11:07:59 +0530 | [diff] [blame] | 74 | /* |
| 75 | * Map the UARTs early so that the DEBUG_LL stuff continues to work. |
| 76 | */ |
| 77 | iotable_init(u8500_uart_io_desc, ARRAY_SIZE(u8500_uart_io_desc)); |
| 78 | |
| 79 | ux500_map_io(); |
| 80 | |
Linus Walleij | bc71c09 | 2012-01-23 11:54:44 +0100 | [diff] [blame] | 81 | iotable_init(u8500_common_io_desc, ARRAY_SIZE(u8500_common_io_desc)); |
Rabin Vincent | 75a36ee | 2010-03-01 05:05:56 +0100 | [diff] [blame] | 82 | |
Linus Walleij | e1bbb55 | 2012-08-09 17:10:36 +0200 | [diff] [blame^] | 83 | if (cpu_is_ux540_family()) |
Michel Jaouen | ee9581d | 2012-02-01 10:30:53 +0100 | [diff] [blame] | 84 | iotable_init(u9540_io_desc, ARRAY_SIZE(u9540_io_desc)); |
| 85 | else |
| 86 | iotable_init(u8500_io_desc, ARRAY_SIZE(u8500_io_desc)); |
Rabin Vincent | 75a36ee | 2010-03-01 05:05:56 +0100 | [diff] [blame] | 87 | |
Linus Walleij | 1187189 | 2011-03-29 16:53:29 +0200 | [diff] [blame] | 88 | _PRCMU_BASE = __io_address(U8500_PRCMU_BASE); |
Srinidhi Kasagar | aa44ef4 | 2009-11-28 08:17:18 +0100 | [diff] [blame] | 89 | } |
| 90 | |
Rabin Vincent | aa90eb9 | 2011-02-08 09:24:37 +0530 | [diff] [blame] | 91 | static struct resource db8500_pmu_resources[] = { |
| 92 | [0] = { |
| 93 | .start = IRQ_DB8500_PMU, |
| 94 | .end = IRQ_DB8500_PMU, |
| 95 | .flags = IORESOURCE_IRQ, |
| 96 | }, |
| 97 | }; |
| 98 | |
| 99 | /* |
| 100 | * The PMU IRQ lines of two cores are wired together into a single interrupt. |
| 101 | * Bounce the interrupt to the other core if it's not ours. |
| 102 | */ |
| 103 | static irqreturn_t db8500_pmu_handler(int irq, void *dev, irq_handler_t handler) |
| 104 | { |
| 105 | irqreturn_t ret = handler(irq, dev); |
| 106 | int other = !smp_processor_id(); |
| 107 | |
| 108 | if (ret == IRQ_NONE && cpu_online(other)) |
| 109 | irq_set_affinity(irq, cpumask_of(other)); |
| 110 | |
| 111 | /* |
| 112 | * We should be able to get away with the amount of IRQ_NONEs we give, |
| 113 | * while still having the spurious IRQ detection code kick in if the |
| 114 | * interrupt really starts hitting spuriously. |
| 115 | */ |
| 116 | return ret; |
| 117 | } |
| 118 | |
Lee Jones | 3a8e39c | 2012-07-06 12:46:23 +0200 | [diff] [blame] | 119 | struct arm_pmu_platdata db8500_pmu_platdata = { |
Rabin Vincent | aa90eb9 | 2011-02-08 09:24:37 +0530 | [diff] [blame] | 120 | .handle_irq = db8500_pmu_handler, |
| 121 | }; |
| 122 | |
| 123 | static struct platform_device db8500_pmu_device = { |
| 124 | .name = "arm-pmu", |
| 125 | .id = ARM_PMU_DEVICE_CPU, |
| 126 | .num_resources = ARRAY_SIZE(db8500_pmu_resources), |
| 127 | .resource = db8500_pmu_resources, |
| 128 | .dev.platform_data = &db8500_pmu_platdata, |
| 129 | }; |
| 130 | |
Mattias Nilsson | 3df57bc | 2011-05-16 00:15:05 +0200 | [diff] [blame] | 131 | static struct platform_device db8500_prcmu_device = { |
| 132 | .name = "db8500-prcmu", |
| 133 | }; |
| 134 | |
Rabin Vincent | aa90eb9 | 2011-02-08 09:24:37 +0530 | [diff] [blame] | 135 | static struct platform_device *platform_devs[] __initdata = { |
| 136 | &u8500_dma40_device, |
| 137 | &db8500_pmu_device, |
Mattias Nilsson | 3df57bc | 2011-05-16 00:15:05 +0200 | [diff] [blame] | 138 | &db8500_prcmu_device, |
Rabin Vincent | aa90eb9 | 2011-02-08 09:24:37 +0530 | [diff] [blame] | 139 | }; |
| 140 | |
Lee Jones | 08d0502 | 2012-04-19 21:36:42 +0100 | [diff] [blame] | 141 | static struct platform_device *of_platform_devs[] __initdata = { |
| 142 | &u8500_dma40_device, |
Lee Jones | 08d0502 | 2012-04-19 21:36:42 +0100 | [diff] [blame] | 143 | }; |
| 144 | |
Rabin Vincent | 01afdd1 | 2010-12-08 11:07:55 +0530 | [diff] [blame] | 145 | static resource_size_t __initdata db8500_gpio_base[] = { |
| 146 | U8500_GPIOBANK0_BASE, |
| 147 | U8500_GPIOBANK1_BASE, |
| 148 | U8500_GPIOBANK2_BASE, |
| 149 | U8500_GPIOBANK3_BASE, |
| 150 | U8500_GPIOBANK4_BASE, |
| 151 | U8500_GPIOBANK5_BASE, |
| 152 | U8500_GPIOBANK6_BASE, |
| 153 | U8500_GPIOBANK7_BASE, |
| 154 | U8500_GPIOBANK8_BASE, |
| 155 | }; |
| 156 | |
Lee Jones | 1840342 | 2012-02-06 11:22:21 -0800 | [diff] [blame] | 157 | static void __init db8500_add_gpios(struct device *parent) |
Rabin Vincent | 01afdd1 | 2010-12-08 11:07:55 +0530 | [diff] [blame] | 158 | { |
| 159 | struct nmk_gpio_platform_data pdata = { |
Linus Walleij | c15def1 | 2011-12-15 13:38:40 +0100 | [diff] [blame] | 160 | .supports_sleepmode = true, |
Rabin Vincent | 01afdd1 | 2010-12-08 11:07:55 +0530 | [diff] [blame] | 161 | }; |
| 162 | |
Lee Jones | 1840342 | 2012-02-06 11:22:21 -0800 | [diff] [blame] | 163 | dbx500_add_gpios(parent, ARRAY_AND_SIZE(db8500_gpio_base), |
Rabin Vincent | 01afdd1 | 2010-12-08 11:07:55 +0530 | [diff] [blame] | 164 | IRQ_DB8500_GPIO0, &pdata); |
Linus Walleij | e98ea77 | 2012-04-26 23:57:25 +0200 | [diff] [blame] | 165 | dbx500_add_pinctrl(parent, "pinctrl-db8500"); |
Rabin Vincent | 01afdd1 | 2010-12-08 11:07:55 +0530 | [diff] [blame] | 166 | } |
| 167 | |
Mian Yousaf Kaukab | 6f3f3c3f | 2011-01-21 18:21:50 +0100 | [diff] [blame] | 168 | static int usb_db8500_rx_dma_cfg[] = { |
| 169 | DB8500_DMA_DEV38_USB_OTG_IEP_1_9, |
| 170 | DB8500_DMA_DEV37_USB_OTG_IEP_2_10, |
| 171 | DB8500_DMA_DEV36_USB_OTG_IEP_3_11, |
| 172 | DB8500_DMA_DEV19_USB_OTG_IEP_4_12, |
| 173 | DB8500_DMA_DEV18_USB_OTG_IEP_5_13, |
| 174 | DB8500_DMA_DEV17_USB_OTG_IEP_6_14, |
| 175 | DB8500_DMA_DEV16_USB_OTG_IEP_7_15, |
| 176 | DB8500_DMA_DEV39_USB_OTG_IEP_8 |
| 177 | }; |
| 178 | |
| 179 | static int usb_db8500_tx_dma_cfg[] = { |
| 180 | DB8500_DMA_DEV38_USB_OTG_OEP_1_9, |
| 181 | DB8500_DMA_DEV37_USB_OTG_OEP_2_10, |
| 182 | DB8500_DMA_DEV36_USB_OTG_OEP_3_11, |
| 183 | DB8500_DMA_DEV19_USB_OTG_OEP_4_12, |
| 184 | DB8500_DMA_DEV18_USB_OTG_OEP_5_13, |
| 185 | DB8500_DMA_DEV17_USB_OTG_OEP_6_14, |
| 186 | DB8500_DMA_DEV16_USB_OTG_OEP_7_15, |
| 187 | DB8500_DMA_DEV39_USB_OTG_OEP_8 |
| 188 | }; |
| 189 | |
Lee Jones | eda413c | 2012-02-06 11:22:24 -0800 | [diff] [blame] | 190 | static const char *db8500_read_soc_id(void) |
| 191 | { |
| 192 | void __iomem *uid = __io_address(U8500_BB_UID_BASE); |
| 193 | |
| 194 | return kasprintf(GFP_KERNEL, "%08x%08x%08x%08x%08x", |
| 195 | readl((u32 *)uid+1), |
| 196 | readl((u32 *)uid+1), readl((u32 *)uid+2), |
| 197 | readl((u32 *)uid+3), readl((u32 *)uid+4)); |
| 198 | } |
| 199 | |
| 200 | static struct device * __init db8500_soc_device_init(void) |
| 201 | { |
| 202 | const char *soc_id = db8500_read_soc_id(); |
| 203 | |
| 204 | return ux500_soc_device_init(soc_id); |
| 205 | } |
| 206 | |
Srinidhi Kasagar | aa44ef4 | 2009-11-28 08:17:18 +0100 | [diff] [blame] | 207 | /* |
| 208 | * This function is called from the board init |
| 209 | */ |
Lee Jones | 3a8e39c | 2012-07-06 12:46:23 +0200 | [diff] [blame] | 210 | struct device * __init u8500_init_devices(struct ab8500_platform_data *ab8500) |
Srinidhi Kasagar | aa44ef4 | 2009-11-28 08:17:18 +0100 | [diff] [blame] | 211 | { |
Lee Jones | eda413c | 2012-02-06 11:22:24 -0800 | [diff] [blame] | 212 | struct device *parent; |
Lee Jones | b024a0c | 2012-02-06 11:22:25 -0800 | [diff] [blame] | 213 | int i; |
Lee Jones | eda413c | 2012-02-06 11:22:24 -0800 | [diff] [blame] | 214 | |
| 215 | parent = db8500_soc_device_init(); |
| 216 | |
| 217 | db8500_add_rtc(parent); |
| 218 | db8500_add_gpios(parent); |
| 219 | db8500_add_usb(parent, usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg); |
Rabin Vincent | fbf1eadf | 2010-09-29 19:46:32 +0530 | [diff] [blame] | 220 | |
Lee Jones | b024a0c | 2012-02-06 11:22:25 -0800 | [diff] [blame] | 221 | platform_device_register_data(parent, |
| 222 | "cpufreq-u8500", -1, NULL, 0); |
| 223 | |
Lee Jones | f65c198 | 2012-05-29 10:03:09 +0800 | [diff] [blame] | 224 | for (i = 0; i < ARRAY_SIZE(platform_devs); i++) |
| 225 | platform_devs[i]->dev.parent = parent; |
| 226 | |
Lee Jones | 3a8e39c | 2012-07-06 12:46:23 +0200 | [diff] [blame] | 227 | db8500_prcmu_device.dev.platform_data = ab8500; |
| 228 | |
Lee Jones | f65c198 | 2012-05-29 10:03:09 +0800 | [diff] [blame] | 229 | platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs)); |
| 230 | |
| 231 | return parent; |
| 232 | } |
| 233 | |
| 234 | /* TODO: Once all pieces are DT:ed, remove completely. */ |
| 235 | struct device * __init u8500_of_init_devices(void) |
| 236 | { |
| 237 | struct device *parent; |
| 238 | int i; |
| 239 | |
| 240 | parent = db8500_soc_device_init(); |
| 241 | |
Lee Jones | f65c198 | 2012-05-29 10:03:09 +0800 | [diff] [blame] | 242 | db8500_add_usb(parent, usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg); |
| 243 | |
| 244 | platform_device_register_data(parent, |
| 245 | "cpufreq-u8500", -1, NULL, 0); |
| 246 | |
Lee Jones | 08d0502 | 2012-04-19 21:36:42 +0100 | [diff] [blame] | 247 | for (i = 0; i < ARRAY_SIZE(of_platform_devs); i++) |
| 248 | of_platform_devs[i]->dev.parent = parent; |
Lee Jones | b024a0c | 2012-02-06 11:22:25 -0800 | [diff] [blame] | 249 | |
Lee Jones | 08d0502 | 2012-04-19 21:36:42 +0100 | [diff] [blame] | 250 | /* |
| 251 | * Devices to be DT:ed: |
| 252 | * u8500_dma40_device = todo |
Lee Jones | da38487 | 2012-06-15 17:37:44 +0100 | [diff] [blame] | 253 | * db8500_pmu_device = done |
Lee Jones | dee42eb | 2012-05-28 16:47:15 +0800 | [diff] [blame] | 254 | * db8500_prcmu_device = done |
Lee Jones | 08d0502 | 2012-04-19 21:36:42 +0100 | [diff] [blame] | 255 | */ |
| 256 | platform_add_devices(of_platform_devs, ARRAY_SIZE(of_platform_devs)); |
Srinidhi Kasagar | aa44ef4 | 2009-11-28 08:17:18 +0100 | [diff] [blame] | 257 | |
Lee Jones | eda413c | 2012-02-06 11:22:24 -0800 | [diff] [blame] | 258 | return parent; |
Srinidhi Kasagar | aa44ef4 | 2009-11-28 08:17:18 +0100 | [diff] [blame] | 259 | } |