ARM: dove: convert legacy dove to PMU support
[deliverable/linux.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>
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12#include <linux/dma-mapping.h>
13#include <linux/init.h>
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14#include <linux/of.h>
15#include <linux/of_platform.h>
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16#include <linux/platform_data/dma-mv_xor.h>
17#include <linux/platform_data/usb-ehci-orion.h>
18#include <linux/platform_device.h>
c5d431e8 19#include <linux/soc/dove/pmu.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
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31/* These can go away once Dove uses the mvebu-mbus DT binding */
32#define DOVE_MBUS_PCIE0_MEM_TARGET 0x4
33#define DOVE_MBUS_PCIE0_MEM_ATTR 0xe8
34#define DOVE_MBUS_PCIE0_IO_TARGET 0x4
35#define DOVE_MBUS_PCIE0_IO_ATTR 0xe0
36#define DOVE_MBUS_PCIE1_MEM_TARGET 0x8
37#define DOVE_MBUS_PCIE1_MEM_ATTR 0xe8
38#define DOVE_MBUS_PCIE1_IO_TARGET 0x8
39#define DOVE_MBUS_PCIE1_IO_ATTR 0xe0
40#define DOVE_MBUS_CESA_TARGET 0x3
41#define DOVE_MBUS_CESA_ATTR 0x1
42#define DOVE_MBUS_BOOTROM_TARGET 0x1
43#define DOVE_MBUS_BOOTROM_ATTR 0xfd
44#define DOVE_MBUS_SCRATCHPAD_TARGET 0xd
45#define DOVE_MBUS_SCRATCHPAD_ATTR 0x0
46
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47/*****************************************************************************
48 * I/O Address Mapping
49 ****************************************************************************/
50static struct map_desc dove_io_desc[] __initdata = {
51 {
c3c5a281 52 .virtual = (unsigned long) DOVE_SB_REGS_VIRT_BASE,
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53 .pfn = __phys_to_pfn(DOVE_SB_REGS_PHYS_BASE),
54 .length = DOVE_SB_REGS_SIZE,
55 .type = MT_DEVICE,
56 }, {
c3c5a281 57 .virtual = (unsigned long) DOVE_NB_REGS_VIRT_BASE,
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58 .pfn = __phys_to_pfn(DOVE_NB_REGS_PHYS_BASE),
59 .length = DOVE_NB_REGS_SIZE,
60 .type = MT_DEVICE,
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61 },
62};
63
64void __init dove_map_io(void)
65{
66 iotable_init(dove_io_desc, ARRAY_SIZE(dove_io_desc));
67}
68
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69/*****************************************************************************
70 * CLK tree
71 ****************************************************************************/
5817d10b 72static int dove_tclk;
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73
74static DEFINE_SPINLOCK(gating_lock);
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75static struct clk *tclk;
76
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77static struct clk __init *dove_register_gate(const char *name,
78 const char *parent, u8 bit_idx)
2f129bf4 79{
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80 return clk_register_gate(NULL, name, parent, 0,
81 (void __iomem *)CLOCK_GATING_CONTROL,
82 bit_idx, 0, &gating_lock);
83}
84
5817d10b 85static void __init dove_clk_init(void)
2f129bf4 86{
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87 struct clk *usb0, *usb1, *sata, *pex0, *pex1, *sdio0, *sdio1;
88 struct clk *nand, *camera, *i2s0, *i2s1, *crypto, *ac97, *pdma;
89 struct clk *xor0, *xor1, *ge, *gephy;
4574b886 90
2f129bf4 91 tclk = clk_register_fixed_rate(NULL, "tclk", NULL, CLK_IS_ROOT,
5817d10b 92 dove_tclk);
4574b886 93
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94 usb0 = dove_register_gate("usb0", "tclk", CLOCK_GATING_BIT_USB0);
95 usb1 = dove_register_gate("usb1", "tclk", CLOCK_GATING_BIT_USB1);
96 sata = dove_register_gate("sata", "tclk", CLOCK_GATING_BIT_SATA);
97 pex0 = dove_register_gate("pex0", "tclk", CLOCK_GATING_BIT_PCIE0);
98 pex1 = dove_register_gate("pex1", "tclk", CLOCK_GATING_BIT_PCIE1);
99 sdio0 = dove_register_gate("sdio0", "tclk", CLOCK_GATING_BIT_SDIO0);
100 sdio1 = dove_register_gate("sdio1", "tclk", CLOCK_GATING_BIT_SDIO1);
101 nand = dove_register_gate("nand", "tclk", CLOCK_GATING_BIT_NAND);
102 camera = dove_register_gate("camera", "tclk", CLOCK_GATING_BIT_CAMERA);
103 i2s0 = dove_register_gate("i2s0", "tclk", CLOCK_GATING_BIT_I2S0);
104 i2s1 = dove_register_gate("i2s1", "tclk", CLOCK_GATING_BIT_I2S1);
105 crypto = dove_register_gate("crypto", "tclk", CLOCK_GATING_BIT_CRYPTO);
106 ac97 = dove_register_gate("ac97", "tclk", CLOCK_GATING_BIT_AC97);
107 pdma = dove_register_gate("pdma", "tclk", CLOCK_GATING_BIT_PDMA);
108 xor0 = dove_register_gate("xor0", "tclk", CLOCK_GATING_BIT_XOR0);
109 xor1 = dove_register_gate("xor1", "tclk", CLOCK_GATING_BIT_XOR1);
110 gephy = dove_register_gate("gephy", "tclk", CLOCK_GATING_BIT_GIGA_PHY);
111 ge = dove_register_gate("ge", "gephy", CLOCK_GATING_BIT_GBE);
112
113 orion_clkdev_add(NULL, "orion_spi.0", tclk);
114 orion_clkdev_add(NULL, "orion_spi.1", tclk);
115 orion_clkdev_add(NULL, "orion_wdt", tclk);
116 orion_clkdev_add(NULL, "mv64xxx_i2c.0", tclk);
117
118 orion_clkdev_add(NULL, "orion-ehci.0", usb0);
119 orion_clkdev_add(NULL, "orion-ehci.1", usb1);
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120 orion_clkdev_add(NULL, "mv643xx_eth_port.0", ge);
121 orion_clkdev_add(NULL, "sata_mv.0", sata);
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122 orion_clkdev_add("0", "pcie", pex0);
123 orion_clkdev_add("1", "pcie", pex1);
124 orion_clkdev_add(NULL, "sdhci-dove.0", sdio0);
125 orion_clkdev_add(NULL, "sdhci-dove.1", sdio1);
126 orion_clkdev_add(NULL, "orion_nand", nand);
127 orion_clkdev_add(NULL, "cafe1000-ccic.0", camera);
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128 orion_clkdev_add(NULL, "mvebu-audio.0", i2s0);
129 orion_clkdev_add(NULL, "mvebu-audio.1", i2s1);
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130 orion_clkdev_add(NULL, "mv_crypto", crypto);
131 orion_clkdev_add(NULL, "dove-ac97", ac97);
132 orion_clkdev_add(NULL, "dove-pdma", pdma);
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133 orion_clkdev_add(NULL, MV_XOR_NAME ".0", xor0);
134 orion_clkdev_add(NULL, MV_XOR_NAME ".1", xor1);
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135}
136
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137/*****************************************************************************
138 * EHCI0
139 ****************************************************************************/
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140void __init dove_ehci0_init(void)
141{
72053353 142 orion_ehci_init(DOVE_USB0_PHYS_BASE, IRQ_DOVE_USB0, EHCI_PHY_NA);
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143}
144
145/*****************************************************************************
146 * EHCI1
147 ****************************************************************************/
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148void __init dove_ehci1_init(void)
149{
db33f4de 150 orion_ehci_1_init(DOVE_USB1_PHYS_BASE, IRQ_DOVE_USB1);
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151}
152
153/*****************************************************************************
154 * GE00
155 ****************************************************************************/
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156void __init dove_ge00_init(struct mv643xx_eth_platform_data *eth_data)
157{
30e0f580 158 orion_ge00_init(eth_data, DOVE_GE00_PHYS_BASE,
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159 IRQ_DOVE_GE00_SUM, IRQ_DOVE_GE00_ERR,
160 1600);
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161}
162
163/*****************************************************************************
164 * SoC RTC
165 ****************************************************************************/
887c206a 166static void __init dove_rtc_init(void)
edabd38e 167{
f6eaccb3 168 orion_rtc_init(DOVE_RTC_PHYS_BASE, IRQ_DOVE_RTC);
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169}
170
171/*****************************************************************************
172 * SATA
173 ****************************************************************************/
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174void __init dove_sata_init(struct mv_sata_platform_data *sata_data)
175{
db33f4de 176 orion_sata_init(sata_data, DOVE_SATA_PHYS_BASE, IRQ_DOVE_SATA);
9e613f8a 177
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178}
179
180/*****************************************************************************
181 * UART0
182 ****************************************************************************/
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183void __init dove_uart0_init(void)
184{
28a2b450 185 orion_uart0_init(DOVE_UART0_VIRT_BASE, DOVE_UART0_PHYS_BASE,
74c33576 186 IRQ_DOVE_UART_0, tclk);
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187}
188
189/*****************************************************************************
190 * UART1
191 ****************************************************************************/
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192void __init dove_uart1_init(void)
193{
28a2b450 194 orion_uart1_init(DOVE_UART1_VIRT_BASE, DOVE_UART1_PHYS_BASE,
74c33576 195 IRQ_DOVE_UART_1, tclk);
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196}
197
198/*****************************************************************************
199 * UART2
200 ****************************************************************************/
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201void __init dove_uart2_init(void)
202{
28a2b450 203 orion_uart2_init(DOVE_UART2_VIRT_BASE, DOVE_UART2_PHYS_BASE,
74c33576 204 IRQ_DOVE_UART_2, tclk);
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205}
206
207/*****************************************************************************
208 * UART3
209 ****************************************************************************/
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210void __init dove_uart3_init(void)
211{
28a2b450 212 orion_uart3_init(DOVE_UART3_VIRT_BASE, DOVE_UART3_PHYS_BASE,
74c33576 213 IRQ_DOVE_UART_3, tclk);
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214}
215
216/*****************************************************************************
980f9f60 217 * SPI
edabd38e 218 ****************************************************************************/
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219void __init dove_spi0_init(void)
220{
4574b886 221 orion_spi_init(DOVE_SPI0_PHYS_BASE);
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222}
223
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224void __init dove_spi1_init(void)
225{
4574b886 226 orion_spi_1_init(DOVE_SPI1_PHYS_BASE);
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227}
228
229/*****************************************************************************
230 * I2C
231 ****************************************************************************/
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232void __init dove_i2c_init(void)
233{
aac7ffa3 234 orion_i2c_init(DOVE_I2C_PHYS_BASE, IRQ_DOVE_I2C, 10);
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235}
236
237/*****************************************************************************
238 * Time handling
239 ****************************************************************************/
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240void __init dove_init_early(void)
241{
242 orion_time_set_base(TIMER_VIRT_BASE);
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243 mvebu_mbus_init("marvell,dove-mbus",
244 BRIDGE_WINS_BASE, BRIDGE_WINS_SZ,
245 DOVE_MC_WINS_BASE, DOVE_MC_WINS_SZ);
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246}
247
5817d10b 248static int __init dove_find_tclk(void)
edabd38e 249{
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250 return 166666667;
251}
252
6bb27d73 253void __init dove_timer_init(void)
edabd38e 254{
5817d10b 255 dove_tclk = dove_find_tclk();
4ee1f6b5 256 orion_time_init(BRIDGE_VIRT_BASE, BRIDGE_INT_TIMER1_CLR,
5817d10b 257 IRQ_DOVE_BRIDGE, dove_tclk);
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258}
259
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260/*****************************************************************************
261 * XOR 0
262 ****************************************************************************/
887c206a 263static void __init dove_xor0_init(void)
edabd38e 264{
db33f4de 265 orion_xor0_init(DOVE_XOR0_PHYS_BASE, DOVE_XOR0_HIGH_PHYS_BASE,
ee962723 266 IRQ_DOVE_XOR_00, IRQ_DOVE_XOR_01);
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267}
268
269/*****************************************************************************
270 * XOR 1
271 ****************************************************************************/
887c206a 272static void __init dove_xor1_init(void)
edabd38e 273{
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274 orion_xor1_init(DOVE_XOR1_PHYS_BASE, DOVE_XOR1_HIGH_PHYS_BASE,
275 IRQ_DOVE_XOR_10, IRQ_DOVE_XOR_11);
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276}
277
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278/*****************************************************************************
279 * SDIO
280 ****************************************************************************/
281static u64 sdio_dmamask = DMA_BIT_MASK(32);
282
283static struct resource dove_sdio0_resources[] = {
284 {
285 .start = DOVE_SDIO0_PHYS_BASE,
286 .end = DOVE_SDIO0_PHYS_BASE + 0xff,
287 .flags = IORESOURCE_MEM,
288 }, {
289 .start = IRQ_DOVE_SDIO0,
290 .end = IRQ_DOVE_SDIO0,
291 .flags = IORESOURCE_IRQ,
292 },
293};
294
295static struct platform_device dove_sdio0 = {
930e2fe7 296 .name = "sdhci-dove",
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297 .id = 0,
298 .dev = {
299 .dma_mask = &sdio_dmamask,
300 .coherent_dma_mask = DMA_BIT_MASK(32),
301 },
302 .resource = dove_sdio0_resources,
303 .num_resources = ARRAY_SIZE(dove_sdio0_resources),
304};
305
306void __init dove_sdio0_init(void)
307{
308 platform_device_register(&dove_sdio0);
309}
310
311static struct resource dove_sdio1_resources[] = {
312 {
313 .start = DOVE_SDIO1_PHYS_BASE,
314 .end = DOVE_SDIO1_PHYS_BASE + 0xff,
315 .flags = IORESOURCE_MEM,
316 }, {
317 .start = IRQ_DOVE_SDIO1,
318 .end = IRQ_DOVE_SDIO1,
319 .flags = IORESOURCE_IRQ,
320 },
321};
322
323static struct platform_device dove_sdio1 = {
930e2fe7 324 .name = "sdhci-dove",
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325 .id = 1,
326 .dev = {
327 .dma_mask = &sdio_dmamask,
328 .coherent_dma_mask = DMA_BIT_MASK(32),
329 },
330 .resource = dove_sdio1_resources,
331 .num_resources = ARRAY_SIZE(dove_sdio1_resources),
332};
333
334void __init dove_sdio1_init(void)
335{
336 platform_device_register(&dove_sdio1);
337}
338
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339void __init dove_setup_cpu_wins(void)
340{
341 /*
342 * The PCIe windows will no longer be statically allocated
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TP
343 * here once Dove is migrated to the pci-mvebu driver. The
344 * non-PCIe windows will no longer be created here once Dove
345 * fully moves to DT.
7d554902 346 */
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347 mvebu_mbus_add_window_remap_by_id(DOVE_MBUS_PCIE0_IO_TARGET,
348 DOVE_MBUS_PCIE0_IO_ATTR,
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349 DOVE_PCIE0_IO_PHYS_BASE,
350 DOVE_PCIE0_IO_SIZE,
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351 DOVE_PCIE0_IO_BUS_BASE);
352 mvebu_mbus_add_window_remap_by_id(DOVE_MBUS_PCIE1_IO_TARGET,
353 DOVE_MBUS_PCIE1_IO_ATTR,
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354 DOVE_PCIE1_IO_PHYS_BASE,
355 DOVE_PCIE1_IO_SIZE,
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356 DOVE_PCIE1_IO_BUS_BASE);
357 mvebu_mbus_add_window_by_id(DOVE_MBUS_PCIE0_MEM_TARGET,
358 DOVE_MBUS_PCIE0_MEM_ATTR,
359 DOVE_PCIE0_MEM_PHYS_BASE,
360 DOVE_PCIE0_MEM_SIZE);
361 mvebu_mbus_add_window_by_id(DOVE_MBUS_PCIE1_MEM_TARGET,
362 DOVE_MBUS_PCIE1_MEM_ATTR,
363 DOVE_PCIE1_MEM_PHYS_BASE,
364 DOVE_PCIE1_MEM_SIZE);
365 mvebu_mbus_add_window_by_id(DOVE_MBUS_CESA_TARGET,
366 DOVE_MBUS_CESA_ATTR,
367 DOVE_CESA_PHYS_BASE,
368 DOVE_CESA_SIZE);
369 mvebu_mbus_add_window_by_id(DOVE_MBUS_BOOTROM_TARGET,
370 DOVE_MBUS_BOOTROM_ATTR,
371 DOVE_BOOTROM_PHYS_BASE,
372 DOVE_BOOTROM_SIZE);
373 mvebu_mbus_add_window_by_id(DOVE_MBUS_SCRATCHPAD_TARGET,
374 DOVE_MBUS_SCRATCHPAD_ATTR,
375 DOVE_SCRATCHPAD_PHYS_BASE,
376 DOVE_SCRATCHPAD_SIZE);
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TP
377}
378
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379static struct resource orion_wdt_resource[] = {
380 DEFINE_RES_MEM(TIMER_PHYS_BASE, 0x04),
381 DEFINE_RES_MEM(RSTOUTn_MASK_PHYS, 0x04),
382};
383
384static struct platform_device orion_wdt_device = {
385 .name = "orion_wdt",
386 .id = -1,
387 .num_resources = ARRAY_SIZE(orion_wdt_resource),
388 .resource = orion_wdt_resource,
389};
390
391static void __init __maybe_unused orion_wdt_init(void)
392{
393 platform_device_register(&orion_wdt_device);
394}
395
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396static const struct dove_pmu_domain_initdata pmu_domains[] __initconst = {
397 {
398 .pwr_mask = PMU_PWR_VPU_PWR_DWN_MASK,
399 .rst_mask = PMU_SW_RST_VIDEO_MASK,
400 .iso_mask = PMU_ISO_VIDEO_MASK,
401 .name = "vpu-domain",
402 }, {
403 .pwr_mask = PMU_PWR_GPU_PWR_DWN_MASK,
404 .rst_mask = PMU_SW_RST_GPU_MASK,
405 .iso_mask = PMU_ISO_GPU_MASK,
406 .name = "gpu-domain",
407 }, {
408 /* sentinel */
409 },
410};
411
412static const struct dove_pmu_initdata pmu_data __initconst = {
413 .pmc_base = DOVE_PMU_VIRT_BASE,
414 .pmu_base = DOVE_PMU_VIRT_BASE + 0x8000,
415 .irq = IRQ_DOVE_PMU,
416 .irq_domain_start = IRQ_DOVE_PMU_START,
417 .domains = pmu_domains,
418};
419
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420void __init dove_init(void)
421{
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422 pr_info("Dove 88AP510 SoC, TCLK = %d MHz.\n",
423 (dove_tclk + 499999) / 1000000);
edabd38e 424
573a652f 425#ifdef CONFIG_CACHE_TAUROS2
5cc58157 426 tauros2_init(0);
573a652f 427#endif
7d554902 428 dove_setup_cpu_wins();
edabd38e 429
2f129bf4 430 /* Setup root of clk tree */
5817d10b 431 dove_clk_init();
2f129bf4 432
edabd38e 433 /* internal devices that every board has */
c5d431e8 434 dove_init_pmu_legacy(&pmu_data);
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435 dove_rtc_init();
436 dove_xor0_init();
437 dove_xor1_init();
438}
6ca6ff97 439
7b6d864b 440void dove_restart(enum reboot_mode mode, const char *cmd)
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RK
441{
442 /*
443 * Enable soft reset to assert RSTOUTn.
444 */
445 writel(SOFT_RESET_OUT_EN, RSTOUTn_MASK);
446
447 /*
448 * Assert soft reset.
449 */
450 writel(SOFT_RESET, SYSTEM_SOFT_RESET);
451
452 while (1)
453 ;
454}
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