Merge branch 'timer/cleanup' into late/mvebu2
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / arm / mach-dove / common.c
CommitLineData
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1/*
2 * arch/arm/mach-dove/common.c
3 *
4 * Core functions for Marvell Dove 88AP510 System On Chip
5 *
6 * This file is licensed under the terms of the GNU General Public
7 * License version 2. This program is licensed "as is" without any
8 * warranty of any kind, whether express or implied.
9 */
10
2f129bf4 11#include <linux/clk-provider.h>
5b03df9a 12#include <linux/clk/mvebu.h>
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13#include <linux/dma-mapping.h>
14#include <linux/init.h>
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15#include <linux/of.h>
16#include <linux/of_platform.h>
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17#include <linux/platform_data/dma-mv_xor.h>
18#include <linux/platform_data/usb-ehci-orion.h>
19#include <linux/platform_device.h>
573a652f 20#include <asm/hardware/cache-tauros2.h>
b3af7a1f 21#include <asm/mach/arch.h>
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22#include <asm/mach/map.h>
23#include <asm/mach/time.h>
edabd38e 24#include <mach/bridge-regs.h>
b3af7a1f 25#include <mach/pm.h>
28a2b450 26#include <plat/common.h>
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27#include <plat/irq.h>
28#include <plat/time.h>
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29#include "common.h"
30
31/*****************************************************************************
32 * I/O Address Mapping
33 ****************************************************************************/
34static struct map_desc dove_io_desc[] __initdata = {
35 {
c3c5a281 36 .virtual = (unsigned long) DOVE_SB_REGS_VIRT_BASE,
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37 .pfn = __phys_to_pfn(DOVE_SB_REGS_PHYS_BASE),
38 .length = DOVE_SB_REGS_SIZE,
39 .type = MT_DEVICE,
40 }, {
c3c5a281 41 .virtual = (unsigned long) DOVE_NB_REGS_VIRT_BASE,
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42 .pfn = __phys_to_pfn(DOVE_NB_REGS_PHYS_BASE),
43 .length = DOVE_NB_REGS_SIZE,
44 .type = MT_DEVICE,
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45 },
46};
47
48void __init dove_map_io(void)
49{
50 iotable_init(dove_io_desc, ARRAY_SIZE(dove_io_desc));
51}
52
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53/*****************************************************************************
54 * CLK tree
55 ****************************************************************************/
5817d10b 56static int dove_tclk;
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57
58static DEFINE_SPINLOCK(gating_lock);
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59static struct clk *tclk;
60
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61static struct clk __init *dove_register_gate(const char *name,
62 const char *parent, u8 bit_idx)
2f129bf4 63{
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64 return clk_register_gate(NULL, name, parent, 0,
65 (void __iomem *)CLOCK_GATING_CONTROL,
66 bit_idx, 0, &gating_lock);
67}
68
5817d10b 69static void __init dove_clk_init(void)
2f129bf4 70{
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71 struct clk *usb0, *usb1, *sata, *pex0, *pex1, *sdio0, *sdio1;
72 struct clk *nand, *camera, *i2s0, *i2s1, *crypto, *ac97, *pdma;
73 struct clk *xor0, *xor1, *ge, *gephy;
4574b886 74
2f129bf4 75 tclk = clk_register_fixed_rate(NULL, "tclk", NULL, CLK_IS_ROOT,
5817d10b 76 dove_tclk);
4574b886 77
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78 usb0 = dove_register_gate("usb0", "tclk", CLOCK_GATING_BIT_USB0);
79 usb1 = dove_register_gate("usb1", "tclk", CLOCK_GATING_BIT_USB1);
80 sata = dove_register_gate("sata", "tclk", CLOCK_GATING_BIT_SATA);
81 pex0 = dove_register_gate("pex0", "tclk", CLOCK_GATING_BIT_PCIE0);
82 pex1 = dove_register_gate("pex1", "tclk", CLOCK_GATING_BIT_PCIE1);
83 sdio0 = dove_register_gate("sdio0", "tclk", CLOCK_GATING_BIT_SDIO0);
84 sdio1 = dove_register_gate("sdio1", "tclk", CLOCK_GATING_BIT_SDIO1);
85 nand = dove_register_gate("nand", "tclk", CLOCK_GATING_BIT_NAND);
86 camera = dove_register_gate("camera", "tclk", CLOCK_GATING_BIT_CAMERA);
87 i2s0 = dove_register_gate("i2s0", "tclk", CLOCK_GATING_BIT_I2S0);
88 i2s1 = dove_register_gate("i2s1", "tclk", CLOCK_GATING_BIT_I2S1);
89 crypto = dove_register_gate("crypto", "tclk", CLOCK_GATING_BIT_CRYPTO);
90 ac97 = dove_register_gate("ac97", "tclk", CLOCK_GATING_BIT_AC97);
91 pdma = dove_register_gate("pdma", "tclk", CLOCK_GATING_BIT_PDMA);
92 xor0 = dove_register_gate("xor0", "tclk", CLOCK_GATING_BIT_XOR0);
93 xor1 = dove_register_gate("xor1", "tclk", CLOCK_GATING_BIT_XOR1);
94 gephy = dove_register_gate("gephy", "tclk", CLOCK_GATING_BIT_GIGA_PHY);
95 ge = dove_register_gate("ge", "gephy", CLOCK_GATING_BIT_GBE);
96
97 orion_clkdev_add(NULL, "orion_spi.0", tclk);
98 orion_clkdev_add(NULL, "orion_spi.1", tclk);
99 orion_clkdev_add(NULL, "orion_wdt", tclk);
100 orion_clkdev_add(NULL, "mv64xxx_i2c.0", tclk);
101
102 orion_clkdev_add(NULL, "orion-ehci.0", usb0);
103 orion_clkdev_add(NULL, "orion-ehci.1", usb1);
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104 orion_clkdev_add(NULL, "mv643xx_eth_port.0", ge);
105 orion_clkdev_add(NULL, "sata_mv.0", sata);
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106 orion_clkdev_add("0", "pcie", pex0);
107 orion_clkdev_add("1", "pcie", pex1);
108 orion_clkdev_add(NULL, "sdhci-dove.0", sdio0);
109 orion_clkdev_add(NULL, "sdhci-dove.1", sdio1);
110 orion_clkdev_add(NULL, "orion_nand", nand);
111 orion_clkdev_add(NULL, "cafe1000-ccic.0", camera);
112 orion_clkdev_add(NULL, "kirkwood-i2s.0", i2s0);
113 orion_clkdev_add(NULL, "kirkwood-i2s.1", i2s1);
114 orion_clkdev_add(NULL, "mv_crypto", crypto);
115 orion_clkdev_add(NULL, "dove-ac97", ac97);
116 orion_clkdev_add(NULL, "dove-pdma", pdma);
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117 orion_clkdev_add(NULL, MV_XOR_NAME ".0", xor0);
118 orion_clkdev_add(NULL, MV_XOR_NAME ".1", xor1);
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119}
120
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121/*****************************************************************************
122 * EHCI0
123 ****************************************************************************/
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124void __init dove_ehci0_init(void)
125{
72053353 126 orion_ehci_init(DOVE_USB0_PHYS_BASE, IRQ_DOVE_USB0, EHCI_PHY_NA);
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127}
128
129/*****************************************************************************
130 * EHCI1
131 ****************************************************************************/
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132void __init dove_ehci1_init(void)
133{
db33f4de 134 orion_ehci_1_init(DOVE_USB1_PHYS_BASE, IRQ_DOVE_USB1);
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135}
136
137/*****************************************************************************
138 * GE00
139 ****************************************************************************/
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140void __init dove_ge00_init(struct mv643xx_eth_platform_data *eth_data)
141{
30e0f580 142 orion_ge00_init(eth_data, DOVE_GE00_PHYS_BASE,
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143 IRQ_DOVE_GE00_SUM, IRQ_DOVE_GE00_ERR,
144 1600);
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145}
146
147/*****************************************************************************
148 * SoC RTC
149 ****************************************************************************/
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150void __init dove_rtc_init(void)
151{
f6eaccb3 152 orion_rtc_init(DOVE_RTC_PHYS_BASE, IRQ_DOVE_RTC);
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153}
154
155/*****************************************************************************
156 * SATA
157 ****************************************************************************/
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158void __init dove_sata_init(struct mv_sata_platform_data *sata_data)
159{
db33f4de 160 orion_sata_init(sata_data, DOVE_SATA_PHYS_BASE, IRQ_DOVE_SATA);
9e613f8a 161
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162}
163
164/*****************************************************************************
165 * UART0
166 ****************************************************************************/
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167void __init dove_uart0_init(void)
168{
28a2b450 169 orion_uart0_init(DOVE_UART0_VIRT_BASE, DOVE_UART0_PHYS_BASE,
74c33576 170 IRQ_DOVE_UART_0, tclk);
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171}
172
173/*****************************************************************************
174 * UART1
175 ****************************************************************************/
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176void __init dove_uart1_init(void)
177{
28a2b450 178 orion_uart1_init(DOVE_UART1_VIRT_BASE, DOVE_UART1_PHYS_BASE,
74c33576 179 IRQ_DOVE_UART_1, tclk);
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180}
181
182/*****************************************************************************
183 * UART2
184 ****************************************************************************/
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185void __init dove_uart2_init(void)
186{
28a2b450 187 orion_uart2_init(DOVE_UART2_VIRT_BASE, DOVE_UART2_PHYS_BASE,
74c33576 188 IRQ_DOVE_UART_2, tclk);
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189}
190
191/*****************************************************************************
192 * UART3
193 ****************************************************************************/
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194void __init dove_uart3_init(void)
195{
28a2b450 196 orion_uart3_init(DOVE_UART3_VIRT_BASE, DOVE_UART3_PHYS_BASE,
74c33576 197 IRQ_DOVE_UART_3, tclk);
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198}
199
200/*****************************************************************************
980f9f60 201 * SPI
edabd38e 202 ****************************************************************************/
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203void __init dove_spi0_init(void)
204{
4574b886 205 orion_spi_init(DOVE_SPI0_PHYS_BASE);
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206}
207
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208void __init dove_spi1_init(void)
209{
4574b886 210 orion_spi_1_init(DOVE_SPI1_PHYS_BASE);
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211}
212
213/*****************************************************************************
214 * I2C
215 ****************************************************************************/
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216void __init dove_i2c_init(void)
217{
aac7ffa3 218 orion_i2c_init(DOVE_I2C_PHYS_BASE, IRQ_DOVE_I2C, 10);
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219}
220
221/*****************************************************************************
222 * Time handling
223 ****************************************************************************/
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224void __init dove_init_early(void)
225{
226 orion_time_set_base(TIMER_VIRT_BASE);
227}
228
5817d10b 229static int __init dove_find_tclk(void)
edabd38e 230{
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231 return 166666667;
232}
233
6bb27d73 234void __init dove_timer_init(void)
edabd38e 235{
5817d10b 236 dove_tclk = dove_find_tclk();
4ee1f6b5 237 orion_time_init(BRIDGE_VIRT_BASE, BRIDGE_INT_TIMER1_CLR,
5817d10b 238 IRQ_DOVE_BRIDGE, dove_tclk);
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239}
240
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241/*****************************************************************************
242 * Cryptographic Engines and Security Accelerator (CESA)
243 ****************************************************************************/
244void __init dove_crypto_init(void)
245{
246 orion_crypto_init(DOVE_CRYPT_PHYS_BASE, DOVE_CESA_PHYS_BASE,
247 DOVE_CESA_SIZE, IRQ_DOVE_CRYPTO);
248}
249
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250/*****************************************************************************
251 * XOR 0
252 ****************************************************************************/
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253void __init dove_xor0_init(void)
254{
db33f4de 255 orion_xor0_init(DOVE_XOR0_PHYS_BASE, DOVE_XOR0_HIGH_PHYS_BASE,
ee962723 256 IRQ_DOVE_XOR_00, IRQ_DOVE_XOR_01);
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257}
258
259/*****************************************************************************
260 * XOR 1
261 ****************************************************************************/
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262void __init dove_xor1_init(void)
263{
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264 orion_xor1_init(DOVE_XOR1_PHYS_BASE, DOVE_XOR1_HIGH_PHYS_BASE,
265 IRQ_DOVE_XOR_10, IRQ_DOVE_XOR_11);
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266}
267
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268/*****************************************************************************
269 * SDIO
270 ****************************************************************************/
271static u64 sdio_dmamask = DMA_BIT_MASK(32);
272
273static struct resource dove_sdio0_resources[] = {
274 {
275 .start = DOVE_SDIO0_PHYS_BASE,
276 .end = DOVE_SDIO0_PHYS_BASE + 0xff,
277 .flags = IORESOURCE_MEM,
278 }, {
279 .start = IRQ_DOVE_SDIO0,
280 .end = IRQ_DOVE_SDIO0,
281 .flags = IORESOURCE_IRQ,
282 },
283};
284
285static struct platform_device dove_sdio0 = {
930e2fe7 286 .name = "sdhci-dove",
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287 .id = 0,
288 .dev = {
289 .dma_mask = &sdio_dmamask,
290 .coherent_dma_mask = DMA_BIT_MASK(32),
291 },
292 .resource = dove_sdio0_resources,
293 .num_resources = ARRAY_SIZE(dove_sdio0_resources),
294};
295
296void __init dove_sdio0_init(void)
297{
298 platform_device_register(&dove_sdio0);
299}
300
301static struct resource dove_sdio1_resources[] = {
302 {
303 .start = DOVE_SDIO1_PHYS_BASE,
304 .end = DOVE_SDIO1_PHYS_BASE + 0xff,
305 .flags = IORESOURCE_MEM,
306 }, {
307 .start = IRQ_DOVE_SDIO1,
308 .end = IRQ_DOVE_SDIO1,
309 .flags = IORESOURCE_IRQ,
310 },
311};
312
313static struct platform_device dove_sdio1 = {
930e2fe7 314 .name = "sdhci-dove",
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315 .id = 1,
316 .dev = {
317 .dma_mask = &sdio_dmamask,
318 .coherent_dma_mask = DMA_BIT_MASK(32),
319 },
320 .resource = dove_sdio1_resources,
321 .num_resources = ARRAY_SIZE(dove_sdio1_resources),
322};
323
324void __init dove_sdio1_init(void)
325{
326 platform_device_register(&dove_sdio1);
327}
328
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329void __init dove_init(void)
330{
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331 pr_info("Dove 88AP510 SoC, TCLK = %d MHz.\n",
332 (dove_tclk + 499999) / 1000000);
edabd38e 333
573a652f 334#ifdef CONFIG_CACHE_TAUROS2
5cc58157 335 tauros2_init(0);
573a652f 336#endif
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337 dove_setup_cpu_mbus();
338
2f129bf4 339 /* Setup root of clk tree */
5817d10b 340 dove_clk_init();
2f129bf4 341
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342 /* internal devices that every board has */
343 dove_rtc_init();
344 dove_xor0_init();
345 dove_xor1_init();
346}
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347
348void dove_restart(char mode, const char *cmd)
349{
350 /*
351 * Enable soft reset to assert RSTOUTn.
352 */
353 writel(SOFT_RESET_OUT_EN, RSTOUTn_MASK);
354
355 /*
356 * Assert soft reset.
357 */
358 writel(SOFT_RESET, SYSTEM_SOFT_RESET);
359
360 while (1)
361 ;
362}
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363
364#if defined(CONFIG_MACH_DOVE_DT)
365/*
5b03df9a
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366 * There are still devices that doesn't even know about DT,
367 * get clock gates here and add a clock lookup.
81d2ef7c 368 */
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369static void __init dove_legacy_clk_init(void)
370{
371 struct device_node *np = of_find_compatible_node(NULL, NULL,
372 "marvell,dove-gating-clock");
373 struct of_phandle_args clkspec;
374
375 clkspec.np = np;
376 clkspec.args_count = 1;
377
378 clkspec.args[0] = CLOCK_GATING_BIT_USB0;
379 orion_clkdev_add(NULL, "orion-ehci.0",
380 of_clk_get_from_provider(&clkspec));
381
382 clkspec.args[0] = CLOCK_GATING_BIT_USB1;
383 orion_clkdev_add(NULL, "orion-ehci.1",
384 of_clk_get_from_provider(&clkspec));
385
386 clkspec.args[0] = CLOCK_GATING_BIT_GBE;
387 orion_clkdev_add(NULL, "mv643xx_eth_port.0",
388 of_clk_get_from_provider(&clkspec));
389
390 clkspec.args[0] = CLOCK_GATING_BIT_PCIE0;
391 orion_clkdev_add("0", "pcie",
392 of_clk_get_from_provider(&clkspec));
393
394 clkspec.args[0] = CLOCK_GATING_BIT_PCIE1;
395 orion_clkdev_add("1", "pcie",
396 of_clk_get_from_provider(&clkspec));
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397}
398
399static void __init dove_of_clk_init(void)
400{
401 mvebu_clocks_init();
402 dove_legacy_clk_init();
403}
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404
405static struct mv643xx_eth_platform_data dove_dt_ge00_data = {
406 .phy_addr = MV643XX_ETH_PHY_ADDR_DEFAULT,
407};
408
409static void __init dove_dt_init(void)
410{
411 pr_info("Dove 88AP510 SoC, TCLK = %d MHz.\n",
412 (dove_tclk + 499999) / 1000000);
413
414#ifdef CONFIG_CACHE_TAUROS2
fd57c65c 415 tauros2_init(0);
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416#endif
417 dove_setup_cpu_mbus();
418
419 /* Setup root of clk tree */
5b03df9a 420 dove_of_clk_init();
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421
422 /* Internal devices not ported to DT yet */
423 dove_rtc_init();
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424
425 dove_ge00_init(&dove_dt_ge00_data);
426 dove_ehci0_init();
427 dove_ehci1_init();
428 dove_pcie_init(1, 1);
81d2ef7c 429
5b03df9a 430 of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
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431}
432
433static const char * const dove_dt_board_compat[] = {
434 "marvell,dove",
435 NULL
436};
437
438DT_MACHINE_START(DOVE_DT, "Marvell Dove (Flattened Device Tree)")
439 .map_io = dove_map_io,
440 .init_early = dove_init_early,
441 .init_irq = orion_dt_init_irq,
6bb27d73 442 .init_time = dove_timer_init,
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443 .init_machine = dove_dt_init,
444 .restart = dove_restart,
445 .dt_compat = dove_dt_board_compat,
446MACHINE_END
447#endif