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/arch/arm/mach-realview/realview_pb11mp.c

https://bitbucket.org/Lloir/lge-kernel-jb
C | 390 lines | 314 code | 37 blank | 39 comment | 1 complexity | 88d90950367ed904d550f59e02e5a2f0 MD5 | raw file
  1. /*
  2. * linux/arch/arm/mach-realview/realview_pb11mp.c
  3. *
  4. * Copyright (C) 2008 ARM Limited
  5. * Copyright (C) 2000 Deep Blue Solutions Ltd
  6. *
  7. * This program is free software; you can redistribute it and/or modify
  8. * it under the terms of the GNU General Public License as published by
  9. * the Free Software Foundation; either version 2 of the License, or
  10. * (at your option) any later version.
  11. *
  12. * This program is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15. * GNU General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU General Public License
  18. * along with this program; if not, write to the Free Software
  19. * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  20. */
  21. #include <linux/init.h>
  22. #include <linux/platform_device.h>
  23. #include <linux/sysdev.h>
  24. #include <linux/amba/bus.h>
  25. #include <linux/amba/pl061.h>
  26. #include <linux/amba/mmci.h>
  27. #include <linux/amba/pl022.h>
  28. #include <linux/io.h>
  29. #include <mach/hardware.h>
  30. #include <asm/irq.h>
  31. #include <asm/leds.h>
  32. #include <asm/mach-types.h>
  33. #include <asm/pmu.h>
  34. #include <asm/pgtable.h>
  35. #include <asm/hardware/gic.h>
  36. #include <asm/hardware/cache-l2x0.h>
  37. #include <asm/localtimer.h>
  38. #include <asm/mach/arch.h>
  39. #include <asm/mach/flash.h>
  40. #include <asm/mach/map.h>
  41. #include <asm/mach/time.h>
  42. #include <mach/board-pb11mp.h>
  43. #include <mach/irqs.h>
  44. #include "core.h"
  45. static struct map_desc realview_pb11mp_io_desc[] __initdata = {
  46. {
  47. .virtual = IO_ADDRESS(REALVIEW_SYS_BASE),
  48. .pfn = __phys_to_pfn(REALVIEW_SYS_BASE),
  49. .length = SZ_4K,
  50. .type = MT_DEVICE,
  51. }, {
  52. .virtual = IO_ADDRESS(REALVIEW_PB11MP_GIC_CPU_BASE),
  53. .pfn = __phys_to_pfn(REALVIEW_PB11MP_GIC_CPU_BASE),
  54. .length = SZ_4K,
  55. .type = MT_DEVICE,
  56. }, {
  57. .virtual = IO_ADDRESS(REALVIEW_PB11MP_GIC_DIST_BASE),
  58. .pfn = __phys_to_pfn(REALVIEW_PB11MP_GIC_DIST_BASE),
  59. .length = SZ_4K,
  60. .type = MT_DEVICE,
  61. }, {
  62. .virtual = IO_ADDRESS(REALVIEW_TC11MP_GIC_CPU_BASE),
  63. .pfn = __phys_to_pfn(REALVIEW_TC11MP_GIC_CPU_BASE),
  64. .length = SZ_4K,
  65. .type = MT_DEVICE,
  66. }, {
  67. .virtual = IO_ADDRESS(REALVIEW_TC11MP_GIC_DIST_BASE),
  68. .pfn = __phys_to_pfn(REALVIEW_TC11MP_GIC_DIST_BASE),
  69. .length = SZ_4K,
  70. .type = MT_DEVICE,
  71. }, {
  72. .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE),
  73. .pfn = __phys_to_pfn(REALVIEW_SCTL_BASE),
  74. .length = SZ_4K,
  75. .type = MT_DEVICE,
  76. }, {
  77. .virtual = IO_ADDRESS(REALVIEW_PB11MP_TIMER0_1_BASE),
  78. .pfn = __phys_to_pfn(REALVIEW_PB11MP_TIMER0_1_BASE),
  79. .length = SZ_4K,
  80. .type = MT_DEVICE,
  81. }, {
  82. .virtual = IO_ADDRESS(REALVIEW_PB11MP_TIMER2_3_BASE),
  83. .pfn = __phys_to_pfn(REALVIEW_PB11MP_TIMER2_3_BASE),
  84. .length = SZ_4K,
  85. .type = MT_DEVICE,
  86. }, {
  87. .virtual = IO_ADDRESS(REALVIEW_TC11MP_L220_BASE),
  88. .pfn = __phys_to_pfn(REALVIEW_TC11MP_L220_BASE),
  89. .length = SZ_8K,
  90. .type = MT_DEVICE,
  91. },
  92. #ifdef CONFIG_DEBUG_LL
  93. {
  94. .virtual = IO_ADDRESS(REALVIEW_PB11MP_UART0_BASE),
  95. .pfn = __phys_to_pfn(REALVIEW_PB11MP_UART0_BASE),
  96. .length = SZ_4K,
  97. .type = MT_DEVICE,
  98. },
  99. #endif
  100. };
  101. static void __init realview_pb11mp_map_io(void)
  102. {
  103. iotable_init(realview_pb11mp_io_desc, ARRAY_SIZE(realview_pb11mp_io_desc));
  104. }
  105. static struct pl061_platform_data gpio0_plat_data = {
  106. .gpio_base = 0,
  107. .irq_base = -1,
  108. };
  109. static struct pl061_platform_data gpio1_plat_data = {
  110. .gpio_base = 8,
  111. .irq_base = -1,
  112. };
  113. static struct pl061_platform_data gpio2_plat_data = {
  114. .gpio_base = 16,
  115. .irq_base = -1,
  116. };
  117. static struct pl022_ssp_controller ssp0_plat_data = {
  118. .bus_id = 0,
  119. .enable_dma = 0,
  120. .num_chipselect = 1,
  121. };
  122. /*
  123. * RealView PB11MPCore AMBA devices
  124. */
  125. #define GPIO2_IRQ { IRQ_PB11MP_GPIO2, NO_IRQ }
  126. #define GPIO2_DMA { 0, 0 }
  127. #define GPIO3_IRQ { IRQ_PB11MP_GPIO3, NO_IRQ }
  128. #define GPIO3_DMA { 0, 0 }
  129. #define AACI_IRQ { IRQ_TC11MP_AACI, NO_IRQ }
  130. #define AACI_DMA { 0x80, 0x81 }
  131. #define MMCI0_IRQ { IRQ_TC11MP_MMCI0A, IRQ_TC11MP_MMCI0B }
  132. #define MMCI0_DMA { 0x84, 0 }
  133. #define KMI0_IRQ { IRQ_TC11MP_KMI0, NO_IRQ }
  134. #define KMI0_DMA { 0, 0 }
  135. #define KMI1_IRQ { IRQ_TC11MP_KMI1, NO_IRQ }
  136. #define KMI1_DMA { 0, 0 }
  137. #define PB11MP_SMC_IRQ { NO_IRQ, NO_IRQ }
  138. #define PB11MP_SMC_DMA { 0, 0 }
  139. #define MPMC_IRQ { NO_IRQ, NO_IRQ }
  140. #define MPMC_DMA { 0, 0 }
  141. #define PB11MP_CLCD_IRQ { IRQ_PB11MP_CLCD, NO_IRQ }
  142. #define PB11MP_CLCD_DMA { 0, 0 }
  143. #define DMAC_IRQ { IRQ_PB11MP_DMAC, NO_IRQ }
  144. #define DMAC_DMA { 0, 0 }
  145. #define SCTL_IRQ { NO_IRQ, NO_IRQ }
  146. #define SCTL_DMA { 0, 0 }
  147. #define PB11MP_WATCHDOG_IRQ { IRQ_PB11MP_WATCHDOG, NO_IRQ }
  148. #define PB11MP_WATCHDOG_DMA { 0, 0 }
  149. #define PB11MP_GPIO0_IRQ { IRQ_PB11MP_GPIO0, NO_IRQ }
  150. #define PB11MP_GPIO0_DMA { 0, 0 }
  151. #define GPIO1_IRQ { IRQ_PB11MP_GPIO1, NO_IRQ }
  152. #define GPIO1_DMA { 0, 0 }
  153. #define PB11MP_RTC_IRQ { IRQ_TC11MP_RTC, NO_IRQ }
  154. #define PB11MP_RTC_DMA { 0, 0 }
  155. #define SCI_IRQ { IRQ_PB11MP_SCI, NO_IRQ }
  156. #define SCI_DMA { 7, 6 }
  157. #define PB11MP_UART0_IRQ { IRQ_TC11MP_UART0, NO_IRQ }
  158. #define PB11MP_UART0_DMA { 15, 14 }
  159. #define PB11MP_UART1_IRQ { IRQ_TC11MP_UART1, NO_IRQ }
  160. #define PB11MP_UART1_DMA { 13, 12 }
  161. #define PB11MP_UART2_IRQ { IRQ_PB11MP_UART2, NO_IRQ }
  162. #define PB11MP_UART2_DMA { 11, 10 }
  163. #define PB11MP_UART3_IRQ { IRQ_PB11MP_UART3, NO_IRQ }
  164. #define PB11MP_UART3_DMA { 0x86, 0x87 }
  165. #define PB11MP_SSP_IRQ { IRQ_PB11MP_SSP, NO_IRQ }
  166. #define PB11MP_SSP_DMA { 9, 8 }
  167. /* FPGA Primecells */
  168. AMBA_DEVICE(aaci, "fpga:aaci", AACI, NULL);
  169. AMBA_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data);
  170. AMBA_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL);
  171. AMBA_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL);
  172. AMBA_DEVICE(uart3, "fpga:uart3", PB11MP_UART3, NULL);
  173. /* DevChip Primecells */
  174. AMBA_DEVICE(smc, "dev:smc", PB11MP_SMC, NULL);
  175. AMBA_DEVICE(sctl, "dev:sctl", SCTL, NULL);
  176. AMBA_DEVICE(wdog, "dev:wdog", PB11MP_WATCHDOG, NULL);
  177. AMBA_DEVICE(gpio0, "dev:gpio0", PB11MP_GPIO0, &gpio0_plat_data);
  178. AMBA_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data);
  179. AMBA_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data);
  180. AMBA_DEVICE(rtc, "dev:rtc", PB11MP_RTC, NULL);
  181. AMBA_DEVICE(sci0, "dev:sci0", SCI, NULL);
  182. AMBA_DEVICE(uart0, "dev:uart0", PB11MP_UART0, NULL);
  183. AMBA_DEVICE(uart1, "dev:uart1", PB11MP_UART1, NULL);
  184. AMBA_DEVICE(uart2, "dev:uart2", PB11MP_UART2, NULL);
  185. AMBA_DEVICE(ssp0, "dev:ssp0", PB11MP_SSP, &ssp0_plat_data);
  186. /* Primecells on the NEC ISSP chip */
  187. AMBA_DEVICE(clcd, "issp:clcd", PB11MP_CLCD, &clcd_plat_data);
  188. AMBA_DEVICE(dmac, "issp:dmac", DMAC, NULL);
  189. static struct amba_device *amba_devs[] __initdata = {
  190. &dmac_device,
  191. &uart0_device,
  192. &uart1_device,
  193. &uart2_device,
  194. &uart3_device,
  195. &smc_device,
  196. &clcd_device,
  197. &sctl_device,
  198. &wdog_device,
  199. &gpio0_device,
  200. &gpio1_device,
  201. &gpio2_device,
  202. &rtc_device,
  203. &sci0_device,
  204. &ssp0_device,
  205. &aaci_device,
  206. &mmc0_device,
  207. &kmi0_device,
  208. &kmi1_device,
  209. };
  210. /*
  211. * RealView PB11MPCore platform devices
  212. */
  213. static struct resource realview_pb11mp_flash_resource[] = {
  214. [0] = {
  215. .start = REALVIEW_PB11MP_FLASH0_BASE,
  216. .end = REALVIEW_PB11MP_FLASH0_BASE + REALVIEW_PB11MP_FLASH0_SIZE - 1,
  217. .flags = IORESOURCE_MEM,
  218. },
  219. [1] = {
  220. .start = REALVIEW_PB11MP_FLASH1_BASE,
  221. .end = REALVIEW_PB11MP_FLASH1_BASE + REALVIEW_PB11MP_FLASH1_SIZE - 1,
  222. .flags = IORESOURCE_MEM,
  223. },
  224. };
  225. static struct resource realview_pb11mp_smsc911x_resources[] = {
  226. [0] = {
  227. .start = REALVIEW_PB11MP_ETH_BASE,
  228. .end = REALVIEW_PB11MP_ETH_BASE + SZ_64K - 1,
  229. .flags = IORESOURCE_MEM,
  230. },
  231. [1] = {
  232. .start = IRQ_TC11MP_ETH,
  233. .end = IRQ_TC11MP_ETH,
  234. .flags = IORESOURCE_IRQ,
  235. },
  236. };
  237. static struct resource realview_pb11mp_isp1761_resources[] = {
  238. [0] = {
  239. .start = REALVIEW_PB11MP_USB_BASE,
  240. .end = REALVIEW_PB11MP_USB_BASE + SZ_128K - 1,
  241. .flags = IORESOURCE_MEM,
  242. },
  243. [1] = {
  244. .start = IRQ_TC11MP_USB,
  245. .end = IRQ_TC11MP_USB,
  246. .flags = IORESOURCE_IRQ,
  247. },
  248. };
  249. static struct resource pmu_resources[] = {
  250. [0] = {
  251. .start = IRQ_TC11MP_PMU_CPU0,
  252. .end = IRQ_TC11MP_PMU_CPU0,
  253. .flags = IORESOURCE_IRQ,
  254. },
  255. [1] = {
  256. .start = IRQ_TC11MP_PMU_CPU1,
  257. .end = IRQ_TC11MP_PMU_CPU1,
  258. .flags = IORESOURCE_IRQ,
  259. },
  260. [2] = {
  261. .start = IRQ_TC11MP_PMU_CPU2,
  262. .end = IRQ_TC11MP_PMU_CPU2,
  263. .flags = IORESOURCE_IRQ,
  264. },
  265. [3] = {
  266. .start = IRQ_TC11MP_PMU_CPU3,
  267. .end = IRQ_TC11MP_PMU_CPU3,
  268. .flags = IORESOURCE_IRQ,
  269. },
  270. };
  271. static struct platform_device pmu_device = {
  272. .name = "arm-pmu",
  273. .id = ARM_PMU_DEVICE_CPU,
  274. .num_resources = ARRAY_SIZE(pmu_resources),
  275. .resource = pmu_resources,
  276. };
  277. static void __init gic_init_irq(void)
  278. {
  279. unsigned int pldctrl;
  280. /* new irq mode with no DCC */
  281. writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK));
  282. pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1);
  283. pldctrl |= 2 << 22;
  284. writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1);
  285. writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
  286. /* ARM11MPCore test chip GIC, primary */
  287. gic_init(0, 29, __io_address(REALVIEW_TC11MP_GIC_DIST_BASE),
  288. __io_address(REALVIEW_TC11MP_GIC_CPU_BASE));
  289. /* board GIC, secondary */
  290. gic_init(1, IRQ_PB11MP_GIC_START,
  291. __io_address(REALVIEW_PB11MP_GIC_DIST_BASE),
  292. __io_address(REALVIEW_PB11MP_GIC_CPU_BASE));
  293. gic_cascade_irq(1, IRQ_TC11MP_PB_IRQ1);
  294. }
  295. static void __init realview_pb11mp_timer_init(void)
  296. {
  297. timer0_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE);
  298. timer1_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE) + 0x20;
  299. timer2_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE);
  300. timer3_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE) + 0x20;
  301. #ifdef CONFIG_LOCAL_TIMERS
  302. twd_base = __io_address(REALVIEW_TC11MP_TWD_BASE);
  303. #endif
  304. realview_timer_init(IRQ_TC11MP_TIMER0_1);
  305. }
  306. static struct sys_timer realview_pb11mp_timer = {
  307. .init = realview_pb11mp_timer_init,
  308. };
  309. static void realview_pb11mp_reset(char mode)
  310. {
  311. void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
  312. void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
  313. /*
  314. * To reset, we hit the on-board reset register
  315. * in the system FPGA
  316. */
  317. __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl);
  318. __raw_writel(0x0000, reset_ctrl);
  319. __raw_writel(0x0004, reset_ctrl);
  320. }
  321. static void __init realview_pb11mp_init(void)
  322. {
  323. int i;
  324. #ifdef CONFIG_CACHE_L2X0
  325. /* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled
  326. * Bits: .... ...0 0111 1001 0000 .... .... .... */
  327. l2x0_init(__io_address(REALVIEW_TC11MP_L220_BASE), 0x00790000, 0xfe000fff);
  328. #endif
  329. realview_flash_register(realview_pb11mp_flash_resource,
  330. ARRAY_SIZE(realview_pb11mp_flash_resource));
  331. realview_eth_register(NULL, realview_pb11mp_smsc911x_resources);
  332. platform_device_register(&realview_i2c_device);
  333. platform_device_register(&realview_cf_device);
  334. realview_usb_register(realview_pb11mp_isp1761_resources);
  335. platform_device_register(&pmu_device);
  336. for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
  337. struct amba_device *d = amba_devs[i];
  338. amba_device_register(d, &iomem_resource);
  339. }
  340. #ifdef CONFIG_LEDS
  341. leds_event = realview_leds_event;
  342. #endif
  343. realview_reset = realview_pb11mp_reset;
  344. }
  345. MACHINE_START(REALVIEW_PB11MP, "ARM-RealView PB11MPCore")
  346. /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
  347. .boot_params = PHYS_OFFSET + 0x00000100,
  348. .fixup = realview_fixup,
  349. .map_io = realview_pb11mp_map_io,
  350. .init_irq = gic_init_irq,
  351. .timer = &realview_pb11mp_timer,
  352. .init_machine = realview_pb11mp_init,
  353. MACHINE_END