diff options
| -rw-r--r-- | arch/arm/mach-omap2/Makefile | 3 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/common.c | 135 | ||||
| -rw-r--r-- | arch/arm/plat-omap/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/plat-omap/common.c | 275 | ||||
| -rw-r--r-- | arch/arm/plat-omap/counter_32k.c | 183 | ||||
| -rw-r--r-- | arch/arm/plat-omap/devices.c | 1 | ||||
| -rw-r--r-- | arch/arm/plat-omap/sram.c | 3 |
7 files changed, 321 insertions, 281 deletions
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index d8b1de6f3f62..7352412e4917 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile | |||
| @@ -3,7 +3,8 @@ | |||
| 3 | # | 3 | # |
| 4 | 4 | ||
| 5 | # Common support | 5 | # Common support |
| 6 | obj-y := id.o io.o control.o mux.o devices.o serial.o gpmc.o timer-gp.o pm.o | 6 | obj-y := id.o io.o control.o mux.o devices.o serial.o gpmc.o timer-gp.o pm.o \ |
| 7 | common.o | ||
| 7 | 8 | ||
| 8 | omap-2-3-common = irq.o sdrc.o prm2xxx_3xxx.o | 9 | omap-2-3-common = irq.o sdrc.o prm2xxx_3xxx.o |
| 9 | hwmod-common = omap_hwmod.o \ | 10 | hwmod-common = omap_hwmod.o \ |
diff --git a/arch/arm/mach-omap2/common.c b/arch/arm/mach-omap2/common.c new file mode 100644 index 000000000000..cddc89ab7479 --- /dev/null +++ b/arch/arm/mach-omap2/common.c | |||
| @@ -0,0 +1,135 @@ | |||
| 1 | /* | ||
| 2 | * linux/arch/arm/mach-omap2/common.c | ||
| 3 | * | ||
| 4 | * Code common to all OMAP2+ machines. | ||
| 5 | * | ||
| 6 | * Copyright (C) 2009 Texas Instruments | ||
| 7 | * Copyright (C) 2010 Nokia Corporation | ||
| 8 | * Tony Lindgren <tony@atomide.com> | ||
| 9 | * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com> | ||
| 10 | * | ||
| 11 | * This program is free software; you can redistribute it and/or modify | ||
| 12 | * it under the terms of the GNU General Public License version 2 as | ||
| 13 | * published by the Free Software Foundation. | ||
| 14 | */ | ||
| 15 | #include <linux/kernel.h> | ||
| 16 | #include <linux/init.h> | ||
| 17 | #include <linux/clk.h> | ||
| 18 | #include <linux/io.h> | ||
| 19 | |||
| 20 | #include <plat/common.h> | ||
| 21 | #include <plat/board.h> | ||
| 22 | #include <plat/control.h> | ||
| 23 | #include <plat/mux.h> | ||
| 24 | |||
| 25 | #include <plat/clock.h> | ||
| 26 | |||
| 27 | #include "sdrc.h" | ||
| 28 | |||
| 29 | /* Global address base setup code */ | ||
| 30 | |||
| 31 | #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) | ||
| 32 | |||
| 33 | static void __init __omap2_set_globals(struct omap_globals *omap2_globals) | ||
| 34 | { | ||
| 35 | omap2_set_globals_tap(omap2_globals); | ||
| 36 | omap2_set_globals_sdrc(omap2_globals); | ||
| 37 | omap2_set_globals_control(omap2_globals); | ||
| 38 | omap2_set_globals_prcm(omap2_globals); | ||
| 39 | } | ||
| 40 | |||
| 41 | #endif | ||
| 42 | |||
| 43 | #if defined(CONFIG_ARCH_OMAP2420) | ||
| 44 | |||
| 45 | static struct omap_globals omap242x_globals = { | ||
| 46 | .class = OMAP242X_CLASS, | ||
| 47 | .tap = OMAP2_L4_IO_ADDRESS(0x48014000), | ||
| 48 | .sdrc = OMAP2420_SDRC_BASE, | ||
| 49 | .sms = OMAP2420_SMS_BASE, | ||
| 50 | .ctrl = OMAP242X_CTRL_BASE, | ||
| 51 | .prm = OMAP2420_PRM_BASE, | ||
| 52 | .cm = OMAP2420_CM_BASE, | ||
| 53 | .uart1_phys = OMAP2_UART1_BASE, | ||
| 54 | .uart2_phys = OMAP2_UART2_BASE, | ||
| 55 | .uart3_phys = OMAP2_UART3_BASE, | ||
| 56 | }; | ||
| 57 | |||
| 58 | void __init omap2_set_globals_242x(void) | ||
| 59 | { | ||
| 60 | __omap2_set_globals(&omap242x_globals); | ||
| 61 | } | ||
| 62 | #endif | ||
| 63 | |||
| 64 | #if defined(CONFIG_ARCH_OMAP2430) | ||
| 65 | |||
| 66 | static struct omap_globals omap243x_globals = { | ||
| 67 | .class = OMAP243X_CLASS, | ||
| 68 | .tap = OMAP2_L4_IO_ADDRESS(0x4900a000), | ||
| 69 | .sdrc = OMAP243X_SDRC_BASE, | ||
| 70 | .sms = OMAP243X_SMS_BASE, | ||
| 71 | .ctrl = OMAP243X_CTRL_BASE, | ||
| 72 | .prm = OMAP2430_PRM_BASE, | ||
| 73 | .cm = OMAP2430_CM_BASE, | ||
| 74 | .uart1_phys = OMAP2_UART1_BASE, | ||
| 75 | .uart2_phys = OMAP2_UART2_BASE, | ||
| 76 | .uart3_phys = OMAP2_UART3_BASE, | ||
| 77 | }; | ||
| 78 | |||
| 79 | void __init omap2_set_globals_243x(void) | ||
| 80 | { | ||
| 81 | __omap2_set_globals(&omap243x_globals); | ||
| 82 | } | ||
| 83 | #endif | ||
| 84 | |||
| 85 | #if defined(CONFIG_ARCH_OMAP3) | ||
| 86 | |||
| 87 | static struct omap_globals omap3_globals = { | ||
| 88 | .class = OMAP343X_CLASS, | ||
| 89 | .tap = OMAP2_L4_IO_ADDRESS(0x4830A000), | ||
| 90 | .sdrc = OMAP343X_SDRC_BASE, | ||
| 91 | .sms = OMAP343X_SMS_BASE, | ||
| 92 | .ctrl = OMAP343X_CTRL_BASE, | ||
| 93 | .prm = OMAP3430_PRM_BASE, | ||
| 94 | .cm = OMAP3430_CM_BASE, | ||
| 95 | .uart1_phys = OMAP3_UART1_BASE, | ||
| 96 | .uart2_phys = OMAP3_UART2_BASE, | ||
| 97 | .uart3_phys = OMAP3_UART3_BASE, | ||
| 98 | .uart4_phys = OMAP3_UART4_BASE, /* Only on 3630 */ | ||
| 99 | }; | ||
| 100 | |||
| 101 | void __init omap2_set_globals_3xxx(void) | ||
| 102 | { | ||
| 103 | __omap2_set_globals(&omap3_globals); | ||
| 104 | } | ||
| 105 | |||
| 106 | void __init omap3_map_io(void) | ||
| 107 | { | ||
| 108 | omap2_set_globals_3xxx(); | ||
| 109 | omap34xx_map_common_io(); | ||
| 110 | } | ||
| 111 | #endif | ||
| 112 | |||
| 113 | #if defined(CONFIG_ARCH_OMAP4) | ||
| 114 | static struct omap_globals omap4_globals = { | ||
| 115 | .class = OMAP443X_CLASS, | ||
| 116 | .tap = OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE), | ||
| 117 | .ctrl = OMAP443X_SCM_BASE, | ||
| 118 | .ctrl_pad = OMAP443X_CTRL_BASE, | ||
| 119 | .prm = OMAP4430_PRM_BASE, | ||
| 120 | .cm = OMAP4430_CM_BASE, | ||
| 121 | .cm2 = OMAP4430_CM2_BASE, | ||
| 122 | .uart1_phys = OMAP4_UART1_BASE, | ||
| 123 | .uart2_phys = OMAP4_UART2_BASE, | ||
| 124 | .uart3_phys = OMAP4_UART3_BASE, | ||
| 125 | .uart4_phys = OMAP4_UART4_BASE, | ||
| 126 | }; | ||
| 127 | |||
| 128 | void __init omap2_set_globals_443x(void) | ||
| 129 | { | ||
| 130 | omap2_set_globals_tap(&omap4_globals); | ||
| 131 | omap2_set_globals_control(&omap4_globals); | ||
| 132 | omap2_set_globals_prcm(&omap4_globals); | ||
| 133 | } | ||
| 134 | #endif | ||
| 135 | |||
diff --git a/arch/arm/plat-omap/Makefile b/arch/arm/plat-omap/Makefile index 2a151917ef52..a4a12859fdd5 100644 --- a/arch/arm/plat-omap/Makefile +++ b/arch/arm/plat-omap/Makefile | |||
| @@ -4,7 +4,7 @@ | |||
| 4 | 4 | ||
| 5 | # Common support | 5 | # Common support |
| 6 | obj-y := common.o sram.o clock.o devices.o dma.o mux.o gpio.o \ | 6 | obj-y := common.o sram.o clock.o devices.o dma.o mux.o gpio.o \ |
| 7 | usb.o fb.o io.o | 7 | usb.o fb.o io.o counter_32k.o |
| 8 | obj-m := | 8 | obj-m := |
| 9 | obj-n := | 9 | obj-n := |
| 10 | obj- := | 10 | obj- := |
diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c index cbaf14bbe197..221a675ebbae 100644 --- a/arch/arm/plat-omap/common.c +++ b/arch/arm/plat-omap/common.c | |||
| @@ -11,38 +11,15 @@ | |||
| 11 | * it under the terms of the GNU General Public License version 2 as | 11 | * it under the terms of the GNU General Public License version 2 as |
| 12 | * published by the Free Software Foundation. | 12 | * published by the Free Software Foundation. |
| 13 | */ | 13 | */ |
| 14 | #include <linux/module.h> | ||
| 15 | #include <linux/kernel.h> | 14 | #include <linux/kernel.h> |
| 16 | #include <linux/init.h> | 15 | #include <linux/init.h> |
| 17 | #include <linux/delay.h> | ||
| 18 | #include <linux/console.h> | ||
| 19 | #include <linux/serial.h> | ||
| 20 | #include <linux/tty.h> | ||
| 21 | #include <linux/serial_8250.h> | ||
| 22 | #include <linux/serial_reg.h> | ||
| 23 | #include <linux/clk.h> | ||
| 24 | #include <linux/io.h> | 16 | #include <linux/io.h> |
| 25 | #include <linux/omapfb.h> | 17 | #include <linux/omapfb.h> |
| 26 | 18 | ||
| 27 | #include <mach/hardware.h> | ||
| 28 | #include <asm/system.h> | ||
| 29 | #include <asm/pgtable.h> | ||
| 30 | #include <asm/mach/map.h> | ||
| 31 | #include <asm/setup.h> | ||
| 32 | |||
| 33 | #include <plat/common.h> | 19 | #include <plat/common.h> |
| 34 | #include <plat/board.h> | 20 | #include <plat/board.h> |
| 35 | #include <plat/control.h> | ||
| 36 | #include <plat/mux.h> | ||
| 37 | #include <plat/fpga.h> | ||
| 38 | #include <plat/serial.h> | ||
| 39 | #include <plat/vram.h> | 21 | #include <plat/vram.h> |
| 40 | 22 | ||
| 41 | #include <plat/clock.h> | ||
| 42 | |||
| 43 | #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) | ||
| 44 | # include "../mach-omap2/sdrc.h" | ||
| 45 | #endif | ||
| 46 | 23 | ||
| 47 | #define NO_LENGTH_CHECK 0xffffffff | 24 | #define NO_LENGTH_CHECK 0xffffffff |
| 48 | 25 | ||
| @@ -88,255 +65,3 @@ void __init omap_reserve(void) | |||
| 88 | omapfb_reserve_sdram_memblock(); | 65 | omapfb_reserve_sdram_memblock(); |
| 89 | omap_vram_reserve_sdram_memblock(); | 66 | omap_vram_reserve_sdram_memblock(); |
| 90 | } | 67 | } |
| 91 | |||
| 92 | /* | ||
| 93 | * 32KHz clocksource ... always available, on pretty most chips except | ||
| 94 | * OMAP 730 and 1510. Other timers could be used as clocksources, with | ||
| 95 | * higher resolution in free-running counter modes (e.g. 12 MHz xtal), | ||
| 96 | * but systems won't necessarily want to spend resources that way. | ||
| 97 | */ | ||
| 98 | |||
| 99 | #define OMAP16XX_TIMER_32K_SYNCHRONIZED 0xfffbc410 | ||
| 100 | |||
| 101 | #if !(defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP15XX)) | ||
| 102 | |||
| 103 | #include <linux/clocksource.h> | ||
| 104 | |||
| 105 | /* | ||
| 106 | * offset_32k holds the init time counter value. It is then subtracted | ||
| 107 | * from every counter read to achieve a counter that counts time from the | ||
| 108 | * kernel boot (needed for sched_clock()). | ||
| 109 | */ | ||
| 110 | static u32 offset_32k __read_mostly; | ||
| 111 | |||
| 112 | #ifdef CONFIG_ARCH_OMAP16XX | ||
| 113 | static cycle_t omap16xx_32k_read(struct clocksource *cs) | ||
| 114 | { | ||
| 115 | return omap_readl(OMAP16XX_TIMER_32K_SYNCHRONIZED) - offset_32k; | ||
| 116 | } | ||
| 117 | #else | ||
| 118 | #define omap16xx_32k_read NULL | ||
| 119 | #endif | ||
| 120 | |||
| 121 | #ifdef CONFIG_ARCH_OMAP2420 | ||
| 122 | static cycle_t omap2420_32k_read(struct clocksource *cs) | ||
| 123 | { | ||
| 124 | return omap_readl(OMAP2420_32KSYNCT_BASE + 0x10) - offset_32k; | ||
| 125 | } | ||
| 126 | #else | ||
| 127 | #define omap2420_32k_read NULL | ||
| 128 | #endif | ||
| 129 | |||
| 130 | #ifdef CONFIG_ARCH_OMAP2430 | ||
| 131 | static cycle_t omap2430_32k_read(struct clocksource *cs) | ||
| 132 | { | ||
| 133 | return omap_readl(OMAP2430_32KSYNCT_BASE + 0x10) - offset_32k; | ||
| 134 | } | ||
| 135 | #else | ||
| 136 | #define omap2430_32k_read NULL | ||
| 137 | #endif | ||
| 138 | |||
| 139 | #ifdef CONFIG_ARCH_OMAP3 | ||
| 140 | static cycle_t omap34xx_32k_read(struct clocksource *cs) | ||
| 141 | { | ||
| 142 | return omap_readl(OMAP3430_32KSYNCT_BASE + 0x10) - offset_32k; | ||
| 143 | } | ||
| 144 | #else | ||
| 145 | #define omap34xx_32k_read NULL | ||
| 146 | #endif | ||
| 147 | |||
| 148 | #ifdef CONFIG_ARCH_OMAP4 | ||
| 149 | static cycle_t omap44xx_32k_read(struct clocksource *cs) | ||
| 150 | { | ||
| 151 | return omap_readl(OMAP4430_32KSYNCT_BASE + 0x10) - offset_32k; | ||
| 152 | } | ||
| 153 | #else | ||
| 154 | #define omap44xx_32k_read NULL | ||
| 155 | #endif | ||
| 156 | |||
| 157 | /* | ||
| 158 | * Kernel assumes that sched_clock can be called early but may not have | ||
| 159 | * things ready yet. | ||
| 160 | */ | ||
| 161 | static cycle_t omap_32k_read_dummy(struct clocksource *cs) | ||
| 162 | { | ||
| 163 | return 0; | ||
| 164 | } | ||
| 165 | |||
| 166 | static struct clocksource clocksource_32k = { | ||
| 167 | .name = "32k_counter", | ||
| 168 | .rating = 250, | ||
| 169 | .read = omap_32k_read_dummy, | ||
| 170 | .mask = CLOCKSOURCE_MASK(32), | ||
| 171 | .shift = 10, | ||
| 172 | .flags = CLOCK_SOURCE_IS_CONTINUOUS, | ||
| 173 | }; | ||
| 174 | |||
| 175 | /* | ||
| 176 | * Returns current time from boot in nsecs. It's OK for this to wrap | ||
| 177 | * around for now, as it's just a relative time stamp. | ||
| 178 | */ | ||
| 179 | unsigned long long sched_clock(void) | ||
| 180 | { | ||
| 181 | return clocksource_cyc2ns(clocksource_32k.read(&clocksource_32k), | ||
| 182 | clocksource_32k.mult, clocksource_32k.shift); | ||
| 183 | } | ||
| 184 | |||
| 185 | /** | ||
| 186 | * read_persistent_clock - Return time from a persistent clock. | ||
| 187 | * | ||
| 188 | * Reads the time from a source which isn't disabled during PM, the | ||
| 189 | * 32k sync timer. Convert the cycles elapsed since last read into | ||
| 190 | * nsecs and adds to a monotonically increasing timespec. | ||
| 191 | */ | ||
| 192 | static struct timespec persistent_ts; | ||
| 193 | static cycles_t cycles, last_cycles; | ||
| 194 | void read_persistent_clock(struct timespec *ts) | ||
| 195 | { | ||
| 196 | unsigned long long nsecs; | ||
| 197 | cycles_t delta; | ||
| 198 | struct timespec *tsp = &persistent_ts; | ||
| 199 | |||
| 200 | last_cycles = cycles; | ||
| 201 | cycles = clocksource_32k.read(&clocksource_32k); | ||
| 202 | delta = cycles - last_cycles; | ||
| 203 | |||
| 204 | nsecs = clocksource_cyc2ns(delta, | ||
| 205 | clocksource_32k.mult, clocksource_32k.shift); | ||
| 206 | |||
| 207 | timespec_add_ns(tsp, nsecs); | ||
| 208 | *ts = *tsp; | ||
| 209 | } | ||
| 210 | |||
| 211 | static int __init omap_init_clocksource_32k(void) | ||
| 212 | { | ||
| 213 | static char err[] __initdata = KERN_ERR | ||
| 214 | "%s: can't register clocksource!\n"; | ||
| 215 | |||
| 216 | if (cpu_is_omap16xx() || cpu_class_is_omap2()) { | ||
| 217 | struct clk *sync_32k_ick; | ||
| 218 | |||
| 219 | if (cpu_is_omap16xx()) | ||
| 220 | clocksource_32k.read = omap16xx_32k_read; | ||
| 221 | else if (cpu_is_omap2420()) | ||
| 222 | clocksource_32k.read = omap2420_32k_read; | ||
| 223 | else if (cpu_is_omap2430()) | ||
| 224 | clocksource_32k.read = omap2430_32k_read; | ||
| 225 | else if (cpu_is_omap34xx()) | ||
| 226 | clocksource_32k.read = omap34xx_32k_read; | ||
| 227 | else if (cpu_is_omap44xx()) | ||
| 228 | clocksource_32k.read = omap44xx_32k_read; | ||
| 229 | else | ||
| 230 | return -ENODEV; | ||
| 231 | |||
| 232 | sync_32k_ick = clk_get(NULL, "omap_32ksync_ick"); | ||
| 233 | if (sync_32k_ick) | ||
| 234 | clk_enable(sync_32k_ick); | ||
| 235 | |||
| 236 | clocksource_32k.mult = clocksource_hz2mult(32768, | ||
| 237 | clocksource_32k.shift); | ||
| 238 | |||
| 239 | offset_32k = clocksource_32k.read(&clocksource_32k); | ||
| 240 | |||
| 241 | if (clocksource_register(&clocksource_32k)) | ||
| 242 | printk(err, clocksource_32k.name); | ||
| 243 | } | ||
| 244 | return 0; | ||
| 245 | } | ||
| 246 | arch_initcall(omap_init_clocksource_32k); | ||
| 247 | |||
| 248 | #endif /* !(defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP15XX)) */ | ||
| 249 | |||
| 250 | /* Global address base setup code */ | ||
| 251 | |||
| 252 | #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) | ||
| 253 | |||
| 254 | static void __init __omap2_set_globals(struct omap_globals *omap2_globals) | ||
| 255 | { | ||
| 256 | omap2_set_globals_tap(omap2_globals); | ||
| 257 | omap2_set_globals_sdrc(omap2_globals); | ||
| 258 | omap2_set_globals_control(omap2_globals); | ||
| 259 | omap2_set_globals_prcm(omap2_globals); | ||
| 260 | } | ||
| 261 | |||
| 262 | #endif | ||
| 263 | |||
| 264 | #if defined(CONFIG_ARCH_OMAP2420) | ||
| 265 | |||
| 266 | static struct omap_globals omap242x_globals = { | ||
| 267 | .class = OMAP242X_CLASS, | ||
| 268 | .tap = OMAP2_L4_IO_ADDRESS(0x48014000), | ||
| 269 | .sdrc = OMAP2420_SDRC_BASE, | ||
| 270 | .sms = OMAP2420_SMS_BASE, | ||
| 271 | .ctrl = OMAP242X_CTRL_BASE, | ||
| 272 | .prm = OMAP2420_PRM_BASE, | ||
| 273 | .cm = OMAP2420_CM_BASE, | ||
| 274 | }; | ||
| 275 | |||
| 276 | void __init omap2_set_globals_242x(void) | ||
| 277 | { | ||
| 278 | __omap2_set_globals(&omap242x_globals); | ||
| 279 | } | ||
| 280 | #endif | ||
| 281 | |||
| 282 | #if defined(CONFIG_ARCH_OMAP2430) | ||
| 283 | |||
| 284 | static struct omap_globals omap243x_globals = { | ||
| 285 | .class = OMAP243X_CLASS, | ||
| 286 | .tap = OMAP2_L4_IO_ADDRESS(0x4900a000), | ||
| 287 | .sdrc = OMAP243X_SDRC_BASE, | ||
| 288 | .sms = OMAP243X_SMS_BASE, | ||
| 289 | .ctrl = OMAP243X_CTRL_BASE, | ||
| 290 | .prm = OMAP2430_PRM_BASE, | ||
| 291 | .cm = OMAP2430_CM_BASE, | ||
| 292 | }; | ||
| 293 | |||
| 294 | void __init omap2_set_globals_243x(void) | ||
| 295 | { | ||
| 296 | __omap2_set_globals(&omap243x_globals); | ||
| 297 | } | ||
| 298 | #endif | ||
| 299 | |||
| 300 | #if defined(CONFIG_ARCH_OMAP3) | ||
| 301 | |||
| 302 | static struct omap_globals omap3_globals = { | ||
| 303 | .class = OMAP343X_CLASS, | ||
| 304 | .tap = OMAP2_L4_IO_ADDRESS(0x4830A000), | ||
| 305 | .sdrc = OMAP343X_SDRC_BASE, | ||
| 306 | .sms = OMAP343X_SMS_BASE, | ||
| 307 | .ctrl = OMAP343X_CTRL_BASE, | ||
| 308 | .prm = OMAP3430_PRM_BASE, | ||
| 309 | .cm = OMAP3430_CM_BASE, | ||
| 310 | }; | ||
| 311 | |||
| 312 | void __init omap2_set_globals_3xxx(void) | ||
| 313 | { | ||
| 314 | __omap2_set_globals(&omap3_globals); | ||
| 315 | } | ||
| 316 | |||
| 317 | void __init omap3_map_io(void) | ||
| 318 | { | ||
| 319 | omap2_set_globals_3xxx(); | ||
| 320 | omap34xx_map_common_io(); | ||
| 321 | } | ||
| 322 | #endif | ||
| 323 | |||
| 324 | #if defined(CONFIG_ARCH_OMAP4) | ||
| 325 | static struct omap_globals omap4_globals = { | ||
| 326 | .class = OMAP443X_CLASS, | ||
| 327 | .tap = OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE), | ||
| 328 | .ctrl = OMAP443X_SCM_BASE, | ||
| 329 | .ctrl_pad = OMAP443X_CTRL_BASE, | ||
| 330 | .prm = OMAP4430_PRM_BASE, | ||
| 331 | .cm = OMAP4430_CM_BASE, | ||
| 332 | .cm2 = OMAP4430_CM2_BASE, | ||
| 333 | }; | ||
| 334 | |||
| 335 | void __init omap2_set_globals_443x(void) | ||
| 336 | { | ||
| 337 | omap2_set_globals_tap(&omap4_globals); | ||
| 338 | omap2_set_globals_control(&omap4_globals); | ||
| 339 | omap2_set_globals_prcm(&omap4_globals); | ||
| 340 | } | ||
| 341 | #endif | ||
| 342 | |||
diff --git a/arch/arm/plat-omap/counter_32k.c b/arch/arm/plat-omap/counter_32k.c new file mode 100644 index 000000000000..155fe43a672b --- /dev/null +++ b/arch/arm/plat-omap/counter_32k.c | |||
| @@ -0,0 +1,183 @@ | |||
| 1 | /* | ||
| 2 | * OMAP 32ksynctimer/counter_32k-related code | ||
| 3 | * | ||
| 4 | * Copyright (C) 2009 Texas Instruments | ||
| 5 | * Copyright (C) 2010 Nokia Corporation | ||
| 6 | * Tony Lindgren <tony@atomide.com> | ||
| 7 | * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com> | ||
| 8 | * | ||
| 9 | * This program is free software; you can redistribute it and/or modify | ||
| 10 | * it under the terms of the GNU General Public License version 2 as | ||
| 11 | * published by the Free Software Foundation. | ||
| 12 | * | ||
| 13 | * NOTE: This timer is not the same timer as the old OMAP1 MPU timer. | ||
| 14 | */ | ||
| 15 | #include <linux/kernel.h> | ||
| 16 | #include <linux/init.h> | ||
| 17 | #include <linux/clk.h> | ||
| 18 | #include <linux/io.h> | ||
| 19 | |||
| 20 | #include <plat/common.h> | ||
| 21 | #include <plat/board.h> | ||
| 22 | |||
| 23 | #include <plat/clock.h> | ||
| 24 | |||
| 25 | |||
| 26 | /* | ||
| 27 | * 32KHz clocksource ... always available, on pretty most chips except | ||
| 28 | * OMAP 730 and 1510. Other timers could be used as clocksources, with | ||
| 29 | * higher resolution in free-running counter modes (e.g. 12 MHz xtal), | ||
| 30 | * but systems won't necessarily want to spend resources that way. | ||
| 31 | */ | ||
| 32 | |||
| 33 | #define OMAP16XX_TIMER_32K_SYNCHRONIZED 0xfffbc410 | ||
| 34 | |||
| 35 | #if !(defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP15XX)) | ||
| 36 | |||
| 37 | #include <linux/clocksource.h> | ||
| 38 | |||
| 39 | /* | ||
| 40 | * offset_32k holds the init time counter value. It is then subtracted | ||
| 41 | * from every counter read to achieve a counter that counts time from the | ||
| 42 | * kernel boot (needed for sched_clock()). | ||
| 43 | */ | ||
| 44 | static u32 offset_32k __read_mostly; | ||
| 45 | |||
| 46 | #ifdef CONFIG_ARCH_OMAP16XX | ||
| 47 | static cycle_t omap16xx_32k_read(struct clocksource *cs) | ||
| 48 | { | ||
| 49 | return omap_readl(OMAP16XX_TIMER_32K_SYNCHRONIZED) - offset_32k; | ||
| 50 | } | ||
| 51 | #else | ||
| 52 | #define omap16xx_32k_read NULL | ||
| 53 | #endif | ||
| 54 | |||
| 55 | #ifdef CONFIG_ARCH_OMAP2420 | ||
| 56 | static cycle_t omap2420_32k_read(struct clocksource *cs) | ||
| 57 | { | ||
| 58 | return omap_readl(OMAP2420_32KSYNCT_BASE + 0x10) - offset_32k; | ||
| 59 | } | ||
| 60 | #else | ||
| 61 | #define omap2420_32k_read NULL | ||
| 62 | #endif | ||
| 63 | |||
| 64 | #ifdef CONFIG_ARCH_OMAP2430 | ||
| 65 | static cycle_t omap2430_32k_read(struct clocksource *cs) | ||
| 66 | { | ||
| 67 | return omap_readl(OMAP2430_32KSYNCT_BASE + 0x10) - offset_32k; | ||
| 68 | } | ||
| 69 | #else | ||
| 70 | #define omap2430_32k_read NULL | ||
| 71 | #endif | ||
| 72 | |||
| 73 | #ifdef CONFIG_ARCH_OMAP3 | ||
| 74 | static cycle_t omap34xx_32k_read(struct clocksource *cs) | ||
| 75 | { | ||
| 76 | return omap_readl(OMAP3430_32KSYNCT_BASE + 0x10) - offset_32k; | ||
| 77 | } | ||
| 78 | #else | ||
| 79 | #define omap34xx_32k_read NULL | ||
| 80 | #endif | ||
| 81 | |||
| 82 | #ifdef CONFIG_ARCH_OMAP4 | ||
| 83 | static cycle_t omap44xx_32k_read(struct clocksource *cs) | ||
| 84 | { | ||
| 85 | return omap_readl(OMAP4430_32KSYNCT_BASE + 0x10) - offset_32k; | ||
| 86 | } | ||
| 87 | #else | ||
| 88 | #define omap44xx_32k_read NULL | ||
| 89 | #endif | ||
| 90 | |||
| 91 | /* | ||
| 92 | * Kernel assumes that sched_clock can be called early but may not have | ||
| 93 | * things ready yet. | ||
| 94 | */ | ||
| 95 | static cycle_t omap_32k_read_dummy(struct clocksource *cs) | ||
| 96 | { | ||
| 97 | return 0; | ||
| 98 | } | ||
| 99 | |||
| 100 | static struct clocksource clocksource_32k = { | ||
| 101 | .name = "32k_counter", | ||
| 102 | .rating = 250, | ||
| 103 | .read = omap_32k_read_dummy, | ||
| 104 | .mask = CLOCKSOURCE_MASK(32), | ||
| 105 | .shift = 10, | ||
| 106 | .flags = CLOCK_SOURCE_IS_CONTINUOUS, | ||
| 107 | }; | ||
| 108 | |||
| 109 | /* | ||
| 110 | * Returns current time from boot in nsecs. It's OK for this to wrap | ||
| 111 | * around for now, as it's just a relative time stamp. | ||
| 112 | */ | ||
| 113 | unsigned long long sched_clock(void) | ||
| 114 | { | ||
| 115 | return clocksource_cyc2ns(clocksource_32k.read(&clocksource_32k), | ||
| 116 | clocksource_32k.mult, clocksource_32k.shift); | ||
| 117 | } | ||
| 118 | |||
| 119 | /** | ||
| 120 | * read_persistent_clock - Return time from a persistent clock. | ||
| 121 | * | ||
| 122 | * Reads the time from a source which isn't disabled during PM, the | ||
| 123 | * 32k sync timer. Convert the cycles elapsed since last read into | ||
| 124 | * nsecs and adds to a monotonically increasing timespec. | ||
| 125 | */ | ||
| 126 | static struct timespec persistent_ts; | ||
| 127 | static cycles_t cycles, last_cycles; | ||
| 128 | void read_persistent_clock(struct timespec *ts) | ||
| 129 | { | ||
| 130 | unsigned long long nsecs; | ||
| 131 | cycles_t delta; | ||
| 132 | struct timespec *tsp = &persistent_ts; | ||
| 133 | |||
| 134 | last_cycles = cycles; | ||
| 135 | cycles = clocksource_32k.read(&clocksource_32k); | ||
| 136 | delta = cycles - last_cycles; | ||
| 137 | |||
| 138 | nsecs = clocksource_cyc2ns(delta, | ||
| 139 | clocksource_32k.mult, clocksource_32k.shift); | ||
| 140 | |||
| 141 | timespec_add_ns(tsp, nsecs); | ||
| 142 | *ts = *tsp; | ||
| 143 | } | ||
| 144 | |||
| 145 | static int __init omap_init_clocksource_32k(void) | ||
| 146 | { | ||
| 147 | static char err[] __initdata = KERN_ERR | ||
| 148 | "%s: can't register clocksource!\n"; | ||
| 149 | |||
| 150 | if (cpu_is_omap16xx() || cpu_class_is_omap2()) { | ||
| 151 | struct clk *sync_32k_ick; | ||
| 152 | |||
| 153 | if (cpu_is_omap16xx()) | ||
| 154 | clocksource_32k.read = omap16xx_32k_read; | ||
| 155 | else if (cpu_is_omap2420()) | ||
| 156 | clocksource_32k.read = omap2420_32k_read; | ||
| 157 | else if (cpu_is_omap2430()) | ||
| 158 | clocksource_32k.read = omap2430_32k_read; | ||
| 159 | else if (cpu_is_omap34xx()) | ||
| 160 | clocksource_32k.read = omap34xx_32k_read; | ||
| 161 | else if (cpu_is_omap44xx()) | ||
| 162 | clocksource_32k.read = omap44xx_32k_read; | ||
| 163 | else | ||
| 164 | return -ENODEV; | ||
| 165 | |||
| 166 | sync_32k_ick = clk_get(NULL, "omap_32ksync_ick"); | ||
| 167 | if (sync_32k_ick) | ||
| 168 | clk_enable(sync_32k_ick); | ||
| 169 | |||
| 170 | clocksource_32k.mult = clocksource_hz2mult(32768, | ||
| 171 | clocksource_32k.shift); | ||
| 172 | |||
| 173 | offset_32k = clocksource_32k.read(&clocksource_32k); | ||
| 174 | |||
| 175 | if (clocksource_register(&clocksource_32k)) | ||
| 176 | printk(err, clocksource_32k.name); | ||
| 177 | } | ||
| 178 | return 0; | ||
| 179 | } | ||
| 180 | arch_initcall(omap_init_clocksource_32k); | ||
| 181 | |||
| 182 | #endif /* !(defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP15XX)) */ | ||
| 183 | |||
diff --git a/arch/arm/plat-omap/devices.c b/arch/arm/plat-omap/devices.c index 8e88e0e5d524..1e2383eae638 100644 --- a/arch/arm/plat-omap/devices.c +++ b/arch/arm/plat-omap/devices.c | |||
| @@ -21,7 +21,6 @@ | |||
| 21 | #include <asm/mach/map.h> | 21 | #include <asm/mach/map.h> |
| 22 | 22 | ||
| 23 | #include <plat/tc.h> | 23 | #include <plat/tc.h> |
| 24 | #include <plat/control.h> | ||
| 25 | #include <plat/board.h> | 24 | #include <plat/board.h> |
| 26 | #include <plat/mmc.h> | 25 | #include <plat/mmc.h> |
| 27 | #include <mach/gpio.h> | 26 | #include <mach/gpio.h> |
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c index dba5704b77db..c209163563b8 100644 --- a/arch/arm/plat-omap/sram.c +++ b/arch/arm/plat-omap/sram.c | |||
| @@ -31,10 +31,8 @@ | |||
| 31 | #include <plat/cpu.h> | 31 | #include <plat/cpu.h> |
| 32 | #include <plat/vram.h> | 32 | #include <plat/vram.h> |
| 33 | 33 | ||
| 34 | #include <plat/control.h> | ||
| 35 | #include "sram.h" | 34 | #include "sram.h" |
| 36 | #include "fb.h" | 35 | #include "fb.h" |
| 37 | |||
| 38 | #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) | 36 | #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) |
| 39 | # include "../mach-omap2/prm.h" | 37 | # include "../mach-omap2/prm.h" |
| 40 | # include "../mach-omap2/cm.h" | 38 | # include "../mach-omap2/cm.h" |
| @@ -71,7 +69,6 @@ | |||
| 71 | #define OMAP34XX_VA_WRITEPERM0 OMAP2_L3_IO_ADDRESS(0x68012858) | 69 | #define OMAP34XX_VA_WRITEPERM0 OMAP2_L3_IO_ADDRESS(0x68012858) |
| 72 | #define OMAP34XX_VA_ADDR_MATCH2 OMAP2_L3_IO_ADDRESS(0x68012880) | 70 | #define OMAP34XX_VA_ADDR_MATCH2 OMAP2_L3_IO_ADDRESS(0x68012880) |
| 73 | #define OMAP34XX_VA_SMS_RG_ATT0 OMAP2_L3_IO_ADDRESS(0x6C000048) | 71 | #define OMAP34XX_VA_SMS_RG_ATT0 OMAP2_L3_IO_ADDRESS(0x6C000048) |
| 74 | #define OMAP34XX_VA_CONTROL_STAT OMAP2_L4_IO_ADDRESS(0x480022F0) | ||
| 75 | 72 | ||
| 76 | #define GP_DEVICE 0x300 | 73 | #define GP_DEVICE 0x300 |
| 77 | 74 | ||
