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Saeed Bishara651c74c2008-06-22 22:45:06 +02001/*
2 * arch/arm/mach-kirkwood/common.c
3 *
4 * Core functions for Marvell Kirkwood SoCs
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
11#include <linux/kernel.h>
12#include <linux/init.h>
13#include <linux/platform_device.h>
14#include <linux/serial_8250.h>
Saeed Bishara651c74c2008-06-22 22:45:06 +020015#include <linux/ata_platform.h>
Nicolas Pitrefb7b2d32009-06-01 15:36:36 -040016#include <linux/mtd/nand.h>
Andrew Lunnee962722011-05-15 13:32:48 +020017#include <linux/dma-mapping.h>
Andrew Lunn2f129bf2011-12-15 08:15:07 +010018#include <linux/clk-provider.h>
19#include <linux/spinlock.h>
Lennert Buytenhekdcf1cec2008-09-25 16:23:48 +020020#include <net/dsa.h>
Saeed Bishara651c74c2008-06-22 22:45:06 +020021#include <asm/page.h>
22#include <asm/timex.h>
Eric Cooper9c153642011-02-02 17:16:11 -050023#include <asm/kexec.h>
Saeed Bishara651c74c2008-06-22 22:45:06 +020024#include <asm/mach/map.h>
25#include <asm/mach/time.h>
Russell Kinga09e64f2008-08-05 16:14:15 +010026#include <mach/kirkwood.h>
Nicolas Pitrefdd8b072009-04-22 20:08:17 +010027#include <mach/bridge-regs.h>
apatard@mandriva.com49106c72010-05-31 13:49:12 +020028#include <plat/audio.h>
Lennert Buytenhek6f088f12008-08-09 13:44:58 +020029#include <plat/cache-feroceon-l2.h>
Nicolas Pitre8235ee02009-02-14 03:15:55 -050030#include <plat/mvsdio.h>
Lennert Buytenhek6f088f12008-08-09 13:44:58 +020031#include <plat/orion_nand.h>
Andrew Lunn72053352012-02-08 15:52:47 +010032#include <plat/ehci-orion.h>
Andrew Lunn28a2b452011-05-15 13:32:41 +020033#include <plat/common.h>
Lennert Buytenhek6f088f12008-08-09 13:44:58 +020034#include <plat/time.h>
Andrew Lunn45173d52011-12-07 21:48:06 +010035#include <plat/addr-map.h>
Andrew Lunn2f129bf2011-12-15 08:15:07 +010036#include <plat/mv_xor.h>
Saeed Bishara651c74c2008-06-22 22:45:06 +020037#include "common.h"
38
39/*****************************************************************************
40 * I/O Address Mapping
41 ****************************************************************************/
42static struct map_desc kirkwood_io_desc[] __initdata = {
43 {
44 .virtual = KIRKWOOD_PCIE_IO_VIRT_BASE,
45 .pfn = __phys_to_pfn(KIRKWOOD_PCIE_IO_PHYS_BASE),
46 .length = KIRKWOOD_PCIE_IO_SIZE,
47 .type = MT_DEVICE,
48 }, {
Saeed Bisharaffd58bd2010-06-08 14:21:34 +030049 .virtual = KIRKWOOD_PCIE1_IO_VIRT_BASE,
50 .pfn = __phys_to_pfn(KIRKWOOD_PCIE1_IO_PHYS_BASE),
51 .length = KIRKWOOD_PCIE1_IO_SIZE,
52 .type = MT_DEVICE,
53 }, {
Saeed Bishara651c74c2008-06-22 22:45:06 +020054 .virtual = KIRKWOOD_REGS_VIRT_BASE,
55 .pfn = __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE),
56 .length = KIRKWOOD_REGS_SIZE,
57 .type = MT_DEVICE,
58 },
59};
60
61void __init kirkwood_map_io(void)
62{
63 iotable_init(kirkwood_io_desc, ARRAY_SIZE(kirkwood_io_desc));
64}
65
Saeed Bishara651c74c2008-06-22 22:45:06 +020066/*****************************************************************************
Andrew Lunn2f129bf2011-12-15 08:15:07 +010067 * CLK tree
68 ****************************************************************************/
Andrew Lunn98d99862012-04-11 21:07:45 +020069
70static void disable_sata0(void)
71{
72 /* Disable PLL and IVREF */
73 writel(readl(SATA0_PHY_MODE_2) & ~0xf, SATA0_PHY_MODE_2);
74 /* Disable PHY */
75 writel(readl(SATA0_IF_CTRL) | 0x200, SATA0_IF_CTRL);
76}
77
78static void disable_sata1(void)
79{
80 /* Disable PLL and IVREF */
81 writel(readl(SATA1_PHY_MODE_2) & ~0xf, SATA1_PHY_MODE_2);
82 /* Disable PHY */
83 writel(readl(SATA1_IF_CTRL) | 0x200, SATA1_IF_CTRL);
84}
85
86static void disable_pcie0(void)
87{
88 writel(readl(PCIE_LINK_CTRL) | 0x10, PCIE_LINK_CTRL);
89 while (1)
90 if (readl(PCIE_STATUS) & 0x1)
91 break;
92 writel(readl(PCIE_LINK_CTRL) & ~0x10, PCIE_LINK_CTRL);
93}
94
95static void disable_pcie1(void)
96{
97 u32 dev, rev;
98
99 kirkwood_pcie_id(&dev, &rev);
100
101 if (dev == MV88F6282_DEV_ID) {
102 writel(readl(PCIE1_LINK_CTRL) | 0x10, PCIE1_LINK_CTRL);
103 while (1)
104 if (readl(PCIE1_STATUS) & 0x1)
105 break;
106 writel(readl(PCIE1_LINK_CTRL) & ~0x10, PCIE1_LINK_CTRL);
107 }
108}
109
110/* An extended version of the gated clk. This calls fn() before
111 * disabling the clock. We use this to turn off PHYs etc. */
112struct clk_gate_fn {
113 struct clk_gate gate;
114 void (*fn)(void);
115};
116
117#define to_clk_gate_fn(_gate) container_of(_gate, struct clk_gate_fn, gate)
118#define to_clk_gate(_hw) container_of(_hw, struct clk_gate, hw)
119
120static void clk_gate_fn_disable(struct clk_hw *hw)
121{
122 struct clk_gate *gate = to_clk_gate(hw);
123 struct clk_gate_fn *gate_fn = to_clk_gate_fn(gate);
124
125 if (gate_fn->fn)
126 gate_fn->fn();
127
128 clk_gate_ops.disable(hw);
129}
130
131static struct clk_ops clk_gate_fn_ops;
132
133static struct clk __init *clk_register_gate_fn(struct device *dev,
134 const char *name,
135 const char *parent_name, unsigned long flags,
136 void __iomem *reg, u8 bit_idx,
137 u8 clk_gate_flags, spinlock_t *lock,
138 void (*fn)(void))
139{
140 struct clk_gate_fn *gate_fn;
141 struct clk *clk;
142 struct clk_init_data init;
143
144 gate_fn = kzalloc(sizeof(struct clk_gate_fn), GFP_KERNEL);
145 if (!gate_fn) {
146 pr_err("%s: could not allocate gated clk\n", __func__);
147 return ERR_PTR(-ENOMEM);
148 }
149
150 init.name = name;
151 init.ops = &clk_gate_fn_ops;
152 init.flags = flags;
153 init.parent_names = (parent_name ? &parent_name : NULL);
154 init.num_parents = (parent_name ? 1 : 0);
155
156 /* struct clk_gate assignments */
157 gate_fn->gate.reg = reg;
158 gate_fn->gate.bit_idx = bit_idx;
159 gate_fn->gate.flags = clk_gate_flags;
160 gate_fn->gate.lock = lock;
161 gate_fn->gate.hw.init = &init;
Marc Kleine-Budde5fb2ce12012-06-22 08:54:01 +0200162 gate_fn->fn = fn;
Andrew Lunn98d99862012-04-11 21:07:45 +0200163
164 /* ops is the gate ops, but with our disable function */
165 if (clk_gate_fn_ops.disable != clk_gate_fn_disable) {
166 clk_gate_fn_ops = clk_gate_ops;
167 clk_gate_fn_ops.disable = clk_gate_fn_disable;
168 }
169
170 clk = clk_register(dev, &gate_fn->gate.hw);
171
172 if (IS_ERR(clk))
173 kfree(gate_fn);
174
175 return clk;
176}
177
Andrew Lunn2f129bf2011-12-15 08:15:07 +0100178static DEFINE_SPINLOCK(gating_lock);
179static struct clk *tclk;
180
181static struct clk __init *kirkwood_register_gate(const char *name, u8 bit_idx)
182{
Andrew Lunn98d99862012-04-11 21:07:45 +0200183 return clk_register_gate(NULL, name, "tclk", 0,
Andrew Lunn2f129bf2011-12-15 08:15:07 +0100184 (void __iomem *)CLOCK_GATING_CTRL,
185 bit_idx, 0, &gating_lock);
186}
187
Andrew Lunn98d99862012-04-11 21:07:45 +0200188static struct clk __init *kirkwood_register_gate_fn(const char *name,
189 u8 bit_idx,
190 void (*fn)(void))
191{
192 return clk_register_gate_fn(NULL, name, "tclk", 0,
193 (void __iomem *)CLOCK_GATING_CTRL,
194 bit_idx, 0, &gating_lock, fn);
195}
196
Andrew Lunn128789a2012-06-13 14:52:45 +0200197static struct clk *ge0, *ge1;
198
Andrew Lunn2f129bf2011-12-15 08:15:07 +0100199void __init kirkwood_clk_init(void)
200{
Andrew Lunn128789a2012-06-13 14:52:45 +0200201 struct clk *runit, *sata0, *sata1, *usb0, *sdio;
Andrew Lunne919c712012-03-09 09:56:41 +0100202 struct clk *crypto, *xor0, *xor1, *pex0, *pex1, *audio;
Andrew Lunn4574b882012-04-06 17:17:26 +0200203
Andrew Lunn2f129bf2011-12-15 08:15:07 +0100204 tclk = clk_register_fixed_rate(NULL, "tclk", NULL,
205 CLK_IS_ROOT, kirkwood_tclk);
206
Andrew Lunn4574b882012-04-06 17:17:26 +0200207 runit = kirkwood_register_gate("runit", CGC_BIT_RUNIT);
Andrew Lunn452503e2011-12-24 01:24:24 +0100208 ge0 = kirkwood_register_gate("ge0", CGC_BIT_GE0);
209 ge1 = kirkwood_register_gate("ge1", CGC_BIT_GE1);
Andrew Lunn98d99862012-04-11 21:07:45 +0200210 sata0 = kirkwood_register_gate_fn("sata0", CGC_BIT_SATA0,
211 disable_sata0);
212 sata1 = kirkwood_register_gate_fn("sata1", CGC_BIT_SATA1,
213 disable_sata1);
Andrew Lunn8c869ed2012-04-15 12:53:47 +0200214 usb0 = kirkwood_register_gate("usb0", CGC_BIT_USB0);
Andrew Lunnf4f75612012-02-19 11:39:27 +0100215 sdio = kirkwood_register_gate("sdio", CGC_BIT_SDIO);
Andrew Lunn1f80b122012-02-19 11:56:19 +0100216 crypto = kirkwood_register_gate("crypto", CGC_BIT_CRYPTO);
Andrew Lunnc5101822012-02-19 13:30:26 +0100217 xor0 = kirkwood_register_gate("xor0", CGC_BIT_XOR0);
218 xor1 = kirkwood_register_gate("xor1", CGC_BIT_XOR1);
Andrew Lunn98d99862012-04-11 21:07:45 +0200219 pex0 = kirkwood_register_gate_fn("pex0", CGC_BIT_PEX0,
220 disable_pcie0);
221 pex1 = kirkwood_register_gate_fn("pex1", CGC_BIT_PEX1,
222 disable_pcie1);
Andrew Lunne919c712012-03-09 09:56:41 +0100223 audio = kirkwood_register_gate("audio", CGC_BIT_AUDIO);
Andrew Lunn2f129bf2011-12-15 08:15:07 +0100224 kirkwood_register_gate("tdm", CGC_BIT_TDM);
225 kirkwood_register_gate("tsu", CGC_BIT_TSU);
Andrew Lunn4574b882012-04-06 17:17:26 +0200226
227 /* clkdev entries, mapping clks to devices */
228 orion_clkdev_add(NULL, "orion_spi.0", runit);
229 orion_clkdev_add(NULL, "orion_spi.1", runit);
Andrew Lunn452503e2011-12-24 01:24:24 +0100230 orion_clkdev_add(NULL, MV643XX_ETH_NAME ".0", ge0);
231 orion_clkdev_add(NULL, MV643XX_ETH_NAME ".1", ge1);
Andrew Lunn4f04be62012-03-04 16:57:31 +0100232 orion_clkdev_add(NULL, "orion_wdt", tclk);
Andrew Lunneee98992012-02-18 22:26:42 +0100233 orion_clkdev_add("0", "sata_mv.0", sata0);
234 orion_clkdev_add("1", "sata_mv.0", sata1);
Andrew Lunn8c869ed2012-04-15 12:53:47 +0200235 orion_clkdev_add(NULL, "orion-ehci.0", usb0);
Andrew Lunn9c2bd502012-02-19 11:01:22 +0100236 orion_clkdev_add(NULL, "orion_nand", runit);
Andrew Lunnf4f75612012-02-19 11:39:27 +0100237 orion_clkdev_add(NULL, "mvsdio", sdio);
Andrew Lunn1f80b122012-02-19 11:56:19 +0100238 orion_clkdev_add(NULL, "mv_crypto", crypto);
Andrew Lunnc5101822012-02-19 13:30:26 +0100239 orion_clkdev_add(NULL, MV_XOR_SHARED_NAME ".0", xor0);
240 orion_clkdev_add(NULL, MV_XOR_SHARED_NAME ".1", xor1);
Andrew Lunn27e53cf2012-03-08 21:45:59 +0100241 orion_clkdev_add("0", "pcie", pex0);
242 orion_clkdev_add("1", "pcie", pex1);
Andrew Lunne919c712012-03-09 09:56:41 +0100243 orion_clkdev_add(NULL, "kirkwood-i2s", audio);
Andrew Lunn2f129bf2011-12-15 08:15:07 +0100244}
245
246/*****************************************************************************
Saeed Bishara651c74c2008-06-22 22:45:06 +0200247 * EHCI0
248 ****************************************************************************/
Saeed Bishara651c74c2008-06-22 22:45:06 +0200249void __init kirkwood_ehci_init(void)
250{
Andrew Lunn72053352012-02-08 15:52:47 +0100251 orion_ehci_init(USB_PHYS_BASE, IRQ_KIRKWOOD_USB, EHCI_PHY_NA);
Saeed Bishara651c74c2008-06-22 22:45:06 +0200252}
253
254
255/*****************************************************************************
256 * GE00
257 ****************************************************************************/
Saeed Bishara651c74c2008-06-22 22:45:06 +0200258void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data)
259{
Andrew Lunndb33f4d2011-12-07 21:48:08 +0100260 orion_ge00_init(eth_data,
Andrew Lunn7e3819d2011-05-15 13:32:44 +0200261 GE00_PHYS_BASE, IRQ_KIRKWOOD_GE00_SUM,
Andrew Lunn452503e2011-12-24 01:24:24 +0100262 IRQ_KIRKWOOD_GE00_ERR);
Andrew Lunn128789a2012-06-13 14:52:45 +0200263 /* The interface forgets the MAC address assigned by u-boot if
264 the clock is turned off, so claim the clk now. */
265 clk_prepare_enable(ge0);
Saeed Bishara651c74c2008-06-22 22:45:06 +0200266}
267
268
269/*****************************************************************************
Ronen Shitritd15fb9e2008-10-19 23:10:14 +0200270 * GE01
271 ****************************************************************************/
Ronen Shitritd15fb9e2008-10-19 23:10:14 +0200272void __init kirkwood_ge01_init(struct mv643xx_eth_platform_data *eth_data)
273{
Andrew Lunndb33f4d2011-12-07 21:48:08 +0100274 orion_ge01_init(eth_data,
Andrew Lunn7e3819d2011-05-15 13:32:44 +0200275 GE01_PHYS_BASE, IRQ_KIRKWOOD_GE01_SUM,
Andrew Lunn452503e2011-12-24 01:24:24 +0100276 IRQ_KIRKWOOD_GE01_ERR);
Andrew Lunn128789a2012-06-13 14:52:45 +0200277 clk_prepare_enable(ge1);
Ronen Shitritd15fb9e2008-10-19 23:10:14 +0200278}
279
280
281/*****************************************************************************
Lennert Buytenhekdcf1cec2008-09-25 16:23:48 +0200282 * Ethernet switch
283 ****************************************************************************/
Lennert Buytenhekdcf1cec2008-09-25 16:23:48 +0200284void __init kirkwood_ge00_switch_init(struct dsa_platform_data *d, int irq)
285{
Andrew Lunn7e3819d2011-05-15 13:32:44 +0200286 orion_ge00_switch_init(d, irq);
Lennert Buytenhekdcf1cec2008-09-25 16:23:48 +0200287}
288
289
290/*****************************************************************************
Nicolas Pitrefb7b2d32009-06-01 15:36:36 -0400291 * NAND flash
292 ****************************************************************************/
293static struct resource kirkwood_nand_resource = {
294 .flags = IORESOURCE_MEM,
295 .start = KIRKWOOD_NAND_MEM_PHYS_BASE,
296 .end = KIRKWOOD_NAND_MEM_PHYS_BASE +
297 KIRKWOOD_NAND_MEM_SIZE - 1,
298};
299
300static struct orion_nand_data kirkwood_nand_data = {
301 .cle = 0,
302 .ale = 1,
303 .width = 8,
304};
305
306static struct platform_device kirkwood_nand_flash = {
307 .name = "orion_nand",
308 .id = -1,
309 .dev = {
310 .platform_data = &kirkwood_nand_data,
311 },
312 .resource = &kirkwood_nand_resource,
313 .num_resources = 1,
314};
315
316void __init kirkwood_nand_init(struct mtd_partition *parts, int nr_parts,
317 int chip_delay)
318{
319 kirkwood_nand_data.parts = parts;
320 kirkwood_nand_data.nr_parts = nr_parts;
321 kirkwood_nand_data.chip_delay = chip_delay;
322 platform_device_register(&kirkwood_nand_flash);
323}
324
Ben Dooks010937e2010-04-20 10:26:19 +0100325void __init kirkwood_nand_init_rnb(struct mtd_partition *parts, int nr_parts,
326 int (*dev_ready)(struct mtd_info *))
327{
Ben Dooks010937e2010-04-20 10:26:19 +0100328 kirkwood_nand_data.parts = parts;
329 kirkwood_nand_data.nr_parts = nr_parts;
330 kirkwood_nand_data.dev_ready = dev_ready;
331 platform_device_register(&kirkwood_nand_flash);
332}
Nicolas Pitrefb7b2d32009-06-01 15:36:36 -0400333
334/*****************************************************************************
Saeed Bishara651c74c2008-06-22 22:45:06 +0200335 * SoC RTC
336 ****************************************************************************/
Jason Coopere871b872012-03-06 23:55:04 +0000337static void __init kirkwood_rtc_init(void)
Saeed Bishara651c74c2008-06-22 22:45:06 +0200338{
Andrew Lunn47480582011-05-15 13:32:43 +0200339 orion_rtc_init(RTC_PHYS_BASE, IRQ_KIRKWOOD_RTC);
Saeed Bishara651c74c2008-06-22 22:45:06 +0200340}
341
342
343/*****************************************************************************
344 * SATA
345 ****************************************************************************/
Saeed Bishara651c74c2008-06-22 22:45:06 +0200346void __init kirkwood_sata_init(struct mv_sata_platform_data *sata_data)
347{
Andrew Lunndb33f4d2011-12-07 21:48:08 +0100348 orion_sata_init(sata_data, SATA_PHYS_BASE, IRQ_KIRKWOOD_SATA);
Saeed Bishara651c74c2008-06-22 22:45:06 +0200349}
350
351
352/*****************************************************************************
Nicolas Pitre8235ee02009-02-14 03:15:55 -0500353 * SD/SDIO/MMC
354 ****************************************************************************/
355static struct resource mvsdio_resources[] = {
356 [0] = {
357 .start = SDIO_PHYS_BASE,
358 .end = SDIO_PHYS_BASE + SZ_1K - 1,
359 .flags = IORESOURCE_MEM,
360 },
361 [1] = {
362 .start = IRQ_KIRKWOOD_SDIO,
363 .end = IRQ_KIRKWOOD_SDIO,
364 .flags = IORESOURCE_IRQ,
365 },
366};
367
Andrew Lunn5c602552011-05-15 13:32:40 +0200368static u64 mvsdio_dmamask = DMA_BIT_MASK(32);
Nicolas Pitre8235ee02009-02-14 03:15:55 -0500369
370static struct platform_device kirkwood_sdio = {
371 .name = "mvsdio",
372 .id = -1,
373 .dev = {
374 .dma_mask = &mvsdio_dmamask,
Andrew Lunn5c602552011-05-15 13:32:40 +0200375 .coherent_dma_mask = DMA_BIT_MASK(32),
Nicolas Pitre8235ee02009-02-14 03:15:55 -0500376 },
377 .num_resources = ARRAY_SIZE(mvsdio_resources),
378 .resource = mvsdio_resources,
379};
380
381void __init kirkwood_sdio_init(struct mvsdio_platform_data *mvsdio_data)
382{
383 u32 dev, rev;
384
385 kirkwood_pcie_id(&dev, &rev);
Saeed Bishara1e4d2d32010-06-01 18:09:27 +0300386 if (rev == 0 && dev != MV88F6282_DEV_ID) /* catch all Kirkwood Z0's */
Nicolas Pitre8235ee02009-02-14 03:15:55 -0500387 mvsdio_data->clock = 100000000;
388 else
389 mvsdio_data->clock = 200000000;
Nicolas Pitre8235ee02009-02-14 03:15:55 -0500390 kirkwood_sdio.dev.platform_data = mvsdio_data;
391 platform_device_register(&kirkwood_sdio);
392}
393
394
395/*****************************************************************************
Lennert Buytenhek18365d12008-08-09 15:38:18 +0200396 * SPI
397 ****************************************************************************/
Lennert Buytenhek18365d12008-08-09 15:38:18 +0200398void __init kirkwood_spi_init()
399{
Andrew Lunn4574b882012-04-06 17:17:26 +0200400 orion_spi_init(SPI_PHYS_BASE);
Lennert Buytenhek18365d12008-08-09 15:38:18 +0200401}
402
403
404/*****************************************************************************
Martin Michlmayr6574e002009-03-23 19:13:21 +0100405 * I2C
406 ****************************************************************************/
Martin Michlmayr6574e002009-03-23 19:13:21 +0100407void __init kirkwood_i2c_init(void)
408{
Andrew Lunnaac7ffa2011-05-15 13:32:45 +0200409 orion_i2c_init(I2C_PHYS_BASE, IRQ_KIRKWOOD_TWSI, 8);
Martin Michlmayr6574e002009-03-23 19:13:21 +0100410}
411
412
413/*****************************************************************************
Saeed Bishara651c74c2008-06-22 22:45:06 +0200414 * UART0
415 ****************************************************************************/
Saeed Bishara651c74c2008-06-22 22:45:06 +0200416
417void __init kirkwood_uart0_init(void)
418{
Andrew Lunn28a2b452011-05-15 13:32:41 +0200419 orion_uart0_init(UART0_VIRT_BASE, UART0_PHYS_BASE,
Andrew Lunn74c33572011-12-24 03:06:34 +0100420 IRQ_KIRKWOOD_UART_0, tclk);
Saeed Bishara651c74c2008-06-22 22:45:06 +0200421}
422
423
424/*****************************************************************************
425 * UART1
426 ****************************************************************************/
Saeed Bishara651c74c2008-06-22 22:45:06 +0200427void __init kirkwood_uart1_init(void)
428{
Andrew Lunn28a2b452011-05-15 13:32:41 +0200429 orion_uart1_init(UART1_VIRT_BASE, UART1_PHYS_BASE,
Andrew Lunn74c33572011-12-24 03:06:34 +0100430 IRQ_KIRKWOOD_UART_1, tclk);
Saeed Bishara651c74c2008-06-22 22:45:06 +0200431}
432
Saeed Bishara651c74c2008-06-22 22:45:06 +0200433/*****************************************************************************
Nicolas Pitreae5c8c82009-06-03 15:24:36 -0400434 * Cryptographic Engines and Security Accelerator (CESA)
435 ****************************************************************************/
Nicolas Pitreae5c8c82009-06-03 15:24:36 -0400436void __init kirkwood_crypto_init(void)
437{
Andrew Lunn44350062011-05-15 13:32:51 +0200438 orion_crypto_init(CRYPTO_PHYS_BASE, KIRKWOOD_SRAM_PHYS_BASE,
439 KIRKWOOD_SRAM_SIZE, IRQ_KIRKWOOD_CRYPTO);
Nicolas Pitreae5c8c82009-06-03 15:24:36 -0400440}
441
442
443/*****************************************************************************
Saeed Bishara09c0ed22008-06-23 04:26:07 -1100444 * XOR0
445 ****************************************************************************/
Jason Cooper2b45e052012-02-29 17:39:08 +0000446void __init kirkwood_xor0_init(void)
Saeed Bishara09c0ed22008-06-23 04:26:07 -1100447{
Andrew Lunndb33f4d2011-12-07 21:48:08 +0100448 orion_xor0_init(XOR0_PHYS_BASE, XOR0_HIGH_PHYS_BASE,
Andrew Lunnee962722011-05-15 13:32:48 +0200449 IRQ_KIRKWOOD_XOR_00, IRQ_KIRKWOOD_XOR_01);
Saeed Bishara09c0ed22008-06-23 04:26:07 -1100450}
451
452
453/*****************************************************************************
454 * XOR1
455 ****************************************************************************/
Jason Cooper2b45e052012-02-29 17:39:08 +0000456void __init kirkwood_xor1_init(void)
Saeed Bishara09c0ed22008-06-23 04:26:07 -1100457{
Andrew Lunnee962722011-05-15 13:32:48 +0200458 orion_xor1_init(XOR1_PHYS_BASE, XOR1_HIGH_PHYS_BASE,
459 IRQ_KIRKWOOD_XOR_10, IRQ_KIRKWOOD_XOR_11);
Saeed Bishara09c0ed22008-06-23 04:26:07 -1100460}
461
462
463/*****************************************************************************
Thomas Reitmayr054bd3f02009-06-01 13:38:34 +0200464 * Watchdog
465 ****************************************************************************/
Jason Cooper2b45e052012-02-29 17:39:08 +0000466void __init kirkwood_wdt_init(void)
Thomas Reitmayr054bd3f02009-06-01 13:38:34 +0200467{
Andrew Lunn4f04be62012-03-04 16:57:31 +0100468 orion_wdt_init();
Thomas Reitmayr054bd3f02009-06-01 13:38:34 +0200469}
470
471
472/*****************************************************************************
Saeed Bishara651c74c2008-06-22 22:45:06 +0200473 * Time handling
474 ****************************************************************************/
Lennert Buytenhek4ee1f6b2010-10-15 16:50:26 +0200475void __init kirkwood_init_early(void)
476{
477 orion_time_set_base(TIMER_VIRT_BASE);
478}
479
Ronen Shitrit79d4dd72008-09-15 00:56:38 +0200480int kirkwood_tclk;
481
Nicolas Pitre9b8ebfe2011-03-03 15:08:53 -0500482static int __init kirkwood_find_tclk(void)
Ronen Shitrit79d4dd72008-09-15 00:56:38 +0200483{
Ronen Shitritb2b3dc22008-09-15 10:40:35 +0300484 u32 dev, rev;
485
486 kirkwood_pcie_id(&dev, &rev);
Saeed Bishara1e4d2d32010-06-01 18:09:27 +0300487
Simon Guinot2fa0f932010-10-21 11:42:28 +0200488 if (dev == MV88F6281_DEV_ID || dev == MV88F6282_DEV_ID)
489 if (((readl(SAMPLE_AT_RESET) >> 21) & 1) == 0)
490 return 200000000;
Ronen Shitritb2b3dc22008-09-15 10:40:35 +0300491
Ronen Shitrit79d4dd72008-09-15 00:56:38 +0200492 return 166666667;
493}
494
Li Jie6de95c12009-11-05 07:29:54 -0800495static void __init kirkwood_timer_init(void)
Saeed Bishara651c74c2008-06-22 22:45:06 +0200496{
Ronen Shitrit79d4dd72008-09-15 00:56:38 +0200497 kirkwood_tclk = kirkwood_find_tclk();
Lennert Buytenhek4ee1f6b2010-10-15 16:50:26 +0200498
499 orion_time_init(BRIDGE_VIRT_BASE, BRIDGE_INT_TIMER1_CLR,
500 IRQ_KIRKWOOD_BRIDGE, kirkwood_tclk);
Saeed Bishara651c74c2008-06-22 22:45:06 +0200501}
502
503struct sys_timer kirkwood_timer = {
504 .init = kirkwood_timer_init,
505};
506
apatard@mandriva.com49106c72010-05-31 13:49:12 +0200507/*****************************************************************************
508 * Audio
509 ****************************************************************************/
510static struct resource kirkwood_i2s_resources[] = {
511 [0] = {
512 .start = AUDIO_PHYS_BASE,
513 .end = AUDIO_PHYS_BASE + SZ_16K - 1,
514 .flags = IORESOURCE_MEM,
515 },
516 [1] = {
517 .start = IRQ_KIRKWOOD_I2S,
518 .end = IRQ_KIRKWOOD_I2S,
519 .flags = IORESOURCE_IRQ,
520 },
521};
522
523static struct kirkwood_asoc_platform_data kirkwood_i2s_data = {
apatard@mandriva.com49106c72010-05-31 13:49:12 +0200524 .burst = 128,
525};
526
527static struct platform_device kirkwood_i2s_device = {
528 .name = "kirkwood-i2s",
529 .id = -1,
530 .num_resources = ARRAY_SIZE(kirkwood_i2s_resources),
531 .resource = kirkwood_i2s_resources,
532 .dev = {
533 .platform_data = &kirkwood_i2s_data,
534 },
535};
536
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000537static struct platform_device kirkwood_pcm_device = {
Arnaud Patard (Rtp)c88e7b92010-08-30 16:00:05 +0200538 .name = "kirkwood-pcm-audio",
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000539 .id = -1,
540};
541
apatard@mandriva.com49106c72010-05-31 13:49:12 +0200542void __init kirkwood_audio_init(void)
543{
apatard@mandriva.com49106c72010-05-31 13:49:12 +0200544 platform_device_register(&kirkwood_i2s_device);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000545 platform_device_register(&kirkwood_pcm_device);
apatard@mandriva.com49106c72010-05-31 13:49:12 +0200546}
Saeed Bishara651c74c2008-06-22 22:45:06 +0200547
548/*****************************************************************************
549 * General
550 ****************************************************************************/
Ronen Shitritb2b3dc22008-09-15 10:40:35 +0300551/*
552 * Identify device ID and revision.
553 */
Jason Cooper2b45e052012-02-29 17:39:08 +0000554char * __init kirkwood_id(void)
Saeed Bishara651c74c2008-06-22 22:45:06 +0200555{
Ronen Shitritb2b3dc22008-09-15 10:40:35 +0300556 u32 dev, rev;
Saeed Bishara651c74c2008-06-22 22:45:06 +0200557
Ronen Shitritb2b3dc22008-09-15 10:40:35 +0300558 kirkwood_pcie_id(&dev, &rev);
559
560 if (dev == MV88F6281_DEV_ID) {
561 if (rev == MV88F6281_REV_Z0)
562 return "MV88F6281-Z0";
563 else if (rev == MV88F6281_REV_A0)
564 return "MV88F6281-A0";
Siddarth Goreaec1bad2009-06-09 14:41:02 +0530565 else if (rev == MV88F6281_REV_A1)
566 return "MV88F6281-A1";
Ronen Shitritb2b3dc22008-09-15 10:40:35 +0300567 else
568 return "MV88F6281-Rev-Unsupported";
569 } else if (dev == MV88F6192_DEV_ID) {
570 if (rev == MV88F6192_REV_Z0)
571 return "MV88F6192-Z0";
572 else if (rev == MV88F6192_REV_A0)
573 return "MV88F6192-A0";
Saeed Bishara1c2003a2010-06-01 18:09:26 +0300574 else if (rev == MV88F6192_REV_A1)
575 return "MV88F6192-A1";
Ronen Shitritb2b3dc22008-09-15 10:40:35 +0300576 else
577 return "MV88F6192-Rev-Unsupported";
578 } else if (dev == MV88F6180_DEV_ID) {
579 if (rev == MV88F6180_REV_A0)
580 return "MV88F6180-Rev-A0";
Saeed Bishara1c2003a2010-06-01 18:09:26 +0300581 else if (rev == MV88F6180_REV_A1)
582 return "MV88F6180-Rev-A1";
Ronen Shitritb2b3dc22008-09-15 10:40:35 +0300583 else
584 return "MV88F6180-Rev-Unsupported";
Saeed Bishara1e4d2d32010-06-01 18:09:27 +0300585 } else if (dev == MV88F6282_DEV_ID) {
586 if (rev == MV88F6282_REV_A0)
587 return "MV88F6282-Rev-A0";
Martin Michlmayra87d89e2011-11-03 12:57:43 +0000588 else if (rev == MV88F6282_REV_A1)
589 return "MV88F6282-Rev-A1";
Saeed Bishara1e4d2d32010-06-01 18:09:27 +0300590 else
591 return "MV88F6282-Rev-Unsupported";
Ronen Shitritb2b3dc22008-09-15 10:40:35 +0300592 } else {
593 return "Device-Unknown";
594 }
Saeed Bishara651c74c2008-06-22 22:45:06 +0200595}
596
Jason Cooper2b45e052012-02-29 17:39:08 +0000597void __init kirkwood_l2_init(void)
Saeed Bishara13387602008-06-23 01:05:08 -1100598{
Ronen Shitrit4360bb42008-09-23 15:28:10 +0300599#ifdef CONFIG_CACHE_FEROCEON_L2_WRITETHROUGH
600 writel(readl(L2_CONFIG_REG) | L2_WRITETHROUGH, L2_CONFIG_REG);
601 feroceon_l2_init(1);
602#else
603 writel(readl(L2_CONFIG_REG) & ~L2_WRITETHROUGH, L2_CONFIG_REG);
604 feroceon_l2_init(0);
605#endif
Saeed Bishara13387602008-06-23 01:05:08 -1100606}
607
Saeed Bishara651c74c2008-06-22 22:45:06 +0200608void __init kirkwood_init(void)
609{
610 printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n",
Ronen Shitrit79d4dd72008-09-15 00:56:38 +0200611 kirkwood_id(), kirkwood_tclk);
Saeed Bishara651c74c2008-06-22 22:45:06 +0200612
Lennert Buytenhek2bf30102009-11-12 20:31:14 +0100613 /*
614 * Disable propagation of mbus errors to the CPU local bus,
615 * as this causes mbus errors (which can occur for example
616 * for PCI aborts) to throw CPU aborts, which we're not set
617 * up to deal with.
618 */
619 writel(readl(CPU_CONFIG) & ~CPU_CONFIG_ERROR_PROP, CPU_CONFIG);
620
Saeed Bishara651c74c2008-06-22 22:45:06 +0200621 kirkwood_setup_cpu_mbus();
622
623#ifdef CONFIG_CACHE_FEROCEON_L2
Ronen Shitrit4360bb42008-09-23 15:28:10 +0300624 kirkwood_l2_init();
Saeed Bishara651c74c2008-06-22 22:45:06 +0200625#endif
Nicolas Pitre5b99d532009-02-26 22:55:59 -0500626
Andrew Lunn2f129bf2011-12-15 08:15:07 +0100627 /* Setup root of clk tree */
628 kirkwood_clk_init();
629
Nicolas Pitre5b99d532009-02-26 22:55:59 -0500630 /* internal devices that every board has */
631 kirkwood_rtc_init();
Thomas Reitmayr054bd3f02009-06-01 13:38:34 +0200632 kirkwood_wdt_init();
Nicolas Pitre5b99d532009-02-26 22:55:59 -0500633 kirkwood_xor0_init();
634 kirkwood_xor1_init();
Nicolas Pitreae5c8c82009-06-03 15:24:36 -0400635 kirkwood_crypto_init();
Eric Cooper9c153642011-02-02 17:16:11 -0500636
637#ifdef CONFIG_KEXEC
638 kexec_reinit = kirkwood_enable_pcie;
639#endif
Saeed Bishara651c74c2008-06-22 22:45:06 +0200640}
Rabeeh Khourye8b2b7b2009-03-22 17:30:32 +0200641
Russell Kingcb15dff2011-11-05 10:03:47 +0000642void kirkwood_restart(char mode, const char *cmd)
643{
644 /*
645 * Enable soft reset to assert RSTOUTn.
646 */
647 writel(SOFT_RESET_OUT_EN, RSTOUTn_MASK);
648
649 /*
650 * Assert soft reset.
651 */
652 writel(SOFT_RESET, SYSTEM_SOFT_RESET);
653
654 while (1)
655 ;
656}