1// SPDX-License-Identifier: GPL-2.0
2/*
3 * arch/sh/boards/renesas/r7780rp/setup.c
4 *
5 * Renesas Solutions Highlander Support.
6 *
7 * Copyright (C) 2002 Atom Create Engineering Co., Ltd.
8 * Copyright (C) 2005 - 2008 Paul Mundt
9 *
10 * This contains support for the R7780RP-1, R7780MP, and R7785RP
11 * Highlander modules.
12 */
13#include <linux/init.h>
14#include <linux/io.h>
15#include <linux/platform_device.h>
16#include <linux/ata_platform.h>
17#include <linux/types.h>
18#include <linux/mtd/physmap.h>
19#include <linux/i2c.h>
20#include <linux/irq.h>
21#include <linux/interrupt.h>
22#include <linux/usb/r8a66597.h>
23#include <linux/usb/m66592.h>
24#include <linux/clkdev.h>
25#include <net/ax88796.h>
26#include <asm/machvec.h>
27#include <mach/highlander.h>
28#include <asm/clock.h>
29#include <asm/heartbeat.h>
30#include <asm/io.h>
31#include <asm/io_trapped.h>
32
33static struct r8a66597_platdata r8a66597_data = {
34	.xtal = R8A66597_PLATDATA_XTAL_12MHZ,
35	.vif = 1,
36};
37
38static struct resource r8a66597_usb_host_resources[] = {
39	[0] = {
40		.start	= 0xA4200000,
41		.end	= 0xA42000FF,
42		.flags	= IORESOURCE_MEM,
43	},
44	[1] = {
45		.start	= IRQ_EXT1,		/* irq number */
46		.end	= IRQ_EXT1,
47		.flags	= IORESOURCE_IRQ | IRQF_TRIGGER_LOW,
48	},
49};
50
51static struct platform_device r8a66597_usb_host_device = {
52	.name		= "r8a66597_hcd",
53	.id		= -1,
54	.dev = {
55		.dma_mask		= NULL,		/* don't use dma */
56		.coherent_dma_mask	= 0xffffffff,
57		.platform_data		= &r8a66597_data,
58	},
59	.num_resources	= ARRAY_SIZE(r8a66597_usb_host_resources),
60	.resource	= r8a66597_usb_host_resources,
61};
62
63static struct m66592_platdata usbf_platdata = {
64	.xtal = M66592_PLATDATA_XTAL_24MHZ,
65	.vif = 1,
66};
67
68static struct resource m66592_usb_peripheral_resources[] = {
69	[0] = {
70		.name	= "m66592_udc",
71		.start	= 0xb0000000,
72		.end	= 0xb00000FF,
73		.flags	= IORESOURCE_MEM,
74	},
75	[1] = {
76		.name	= "m66592_udc",
77		.start	= IRQ_EXT4,		/* irq number */
78		.end	= IRQ_EXT4,
79		.flags	= IORESOURCE_IRQ,
80	},
81};
82
83static struct platform_device m66592_usb_peripheral_device = {
84	.name		= "m66592_udc",
85	.id		= -1,
86	.dev = {
87		.dma_mask		= NULL,		/* don't use dma */
88		.coherent_dma_mask	= 0xffffffff,
89		.platform_data		= &usbf_platdata,
90	},
91	.num_resources	= ARRAY_SIZE(m66592_usb_peripheral_resources),
92	.resource	= m66592_usb_peripheral_resources,
93};
94
95static struct resource cf_ide_resources[] = {
96	[0] = {
97		.start	= PA_AREA5_IO + 0x1000,
98		.end	= PA_AREA5_IO + 0x1000 + 0x08 - 1,
99		.flags	= IORESOURCE_MEM,
100	},
101	[1] = {
102		.start	= PA_AREA5_IO + 0x80c,
103		.end	= PA_AREA5_IO + 0x80c + 0x16 - 1,
104		.flags	= IORESOURCE_MEM,
105	},
106	[2] = {
107		.start	= IRQ_CF,
108		.flags	= IORESOURCE_IRQ,
109	},
110};
111
112static struct pata_platform_info pata_info = {
113	.ioport_shift	= 1,
114};
115
116static struct platform_device cf_ide_device  = {
117	.name		= "pata_platform",
118	.id		= -1,
119	.num_resources	= ARRAY_SIZE(cf_ide_resources),
120	.resource	= cf_ide_resources,
121	.dev	= {
122		.platform_data	= &pata_info,
123	},
124};
125
126static struct resource heartbeat_resources[] = {
127	[0] = {
128		.start	= PA_OBLED,
129		.end	= PA_OBLED,
130		.flags	= IORESOURCE_MEM,
131	},
132};
133
134#ifndef CONFIG_SH_R7785RP
135static unsigned char heartbeat_bit_pos[] = { 2, 1, 0, 3, 6, 5, 4, 7 };
136
137static struct heartbeat_data heartbeat_data = {
138	.bit_pos	= heartbeat_bit_pos,
139	.nr_bits	= ARRAY_SIZE(heartbeat_bit_pos),
140};
141#endif
142
143static struct platform_device heartbeat_device = {
144	.name		= "heartbeat",
145	.id		= -1,
146
147	/* R7785RP has a slightly more sensible FPGA.. */
148#ifndef CONFIG_SH_R7785RP
149	.dev	= {
150		.platform_data	= &heartbeat_data,
151	},
152#endif
153	.num_resources	= ARRAY_SIZE(heartbeat_resources),
154	.resource	= heartbeat_resources,
155};
156
157static struct ax_plat_data ax88796_platdata = {
158	.flags          = AXFLG_HAS_93CX6,
159	.wordlength     = 2,
160	.dcr_val        = 0x1,
161	.rcr_val        = 0x40,
162};
163
164static struct resource ax88796_resources[] = {
165	{
166#ifdef CONFIG_SH_R7780RP
167		.start  = 0xa5800400,
168		.end    = 0xa5800400 + (0x20 * 0x2) - 1,
169#else
170		.start  = 0xa4100400,
171		.end    = 0xa4100400 + (0x20 * 0x2) - 1,
172#endif
173		.flags  = IORESOURCE_MEM,
174	},
175	{
176		.start  = IRQ_AX88796,
177		.end    = IRQ_AX88796,
178		.flags  = IORESOURCE_IRQ,
179	},
180};
181
182static struct platform_device ax88796_device = {
183	.name           = "ax88796",
184	.id             = 0,
185
186	.dev    = {
187		.platform_data = &ax88796_platdata,
188	},
189
190	.num_resources  = ARRAY_SIZE(ax88796_resources),
191	.resource       = ax88796_resources,
192};
193
194static struct mtd_partition nor_flash_partitions[] = {
195	{
196		.name		= "loader",
197		.offset		= 0x00000000,
198		.size		= 512 * 1024,
199	},
200	{
201		.name		= "bootenv",
202		.offset		= MTDPART_OFS_APPEND,
203		.size		= 512 * 1024,
204	},
205	{
206		.name		= "kernel",
207		.offset		= MTDPART_OFS_APPEND,
208		.size		= 4 * 1024 * 1024,
209	},
210	{
211		.name		= "data",
212		.offset		= MTDPART_OFS_APPEND,
213		.size		= MTDPART_SIZ_FULL,
214	},
215};
216
217static struct physmap_flash_data nor_flash_data = {
218	.width		= 4,
219	.parts		= nor_flash_partitions,
220	.nr_parts	= ARRAY_SIZE(nor_flash_partitions),
221};
222
223/* This config is flash board for mass production. */
224static struct resource nor_flash_resources[] = {
225	[0]	= {
226		.start	= PA_NORFLASH_ADDR,
227		.end	= PA_NORFLASH_ADDR + PA_NORFLASH_SIZE - 1,
228		.flags	= IORESOURCE_MEM,
229	}
230};
231
232static struct platform_device nor_flash_device = {
233	.name		= "physmap-flash",
234	.dev		= {
235		.platform_data	= &nor_flash_data,
236	},
237	.num_resources	= ARRAY_SIZE(nor_flash_resources),
238	.resource	= nor_flash_resources,
239};
240
241static struct resource smbus_resources[] = {
242	[0] = {
243		.start	= PA_SMCR,
244		.end	= PA_SMCR + 0x100 - 1,
245		.flags	= IORESOURCE_MEM,
246	},
247	[1] = {
248		.start	= IRQ_SMBUS,
249		.end	= IRQ_SMBUS,
250		.flags	= IORESOURCE_IRQ,
251	},
252};
253
254static struct platform_device smbus_device = {
255	.name		= "i2c-highlander",
256	.id		= 0,
257	.num_resources	= ARRAY_SIZE(smbus_resources),
258	.resource	= smbus_resources,
259};
260
261static struct i2c_board_info __initdata highlander_i2c_devices[] = {
262	{
263		I2C_BOARD_INFO("r2025sd", 0x32),
264	},
265};
266
267static struct platform_device *r7780rp_devices[] __initdata = {
268	&r8a66597_usb_host_device,
269	&m66592_usb_peripheral_device,
270	&heartbeat_device,
271	&smbus_device,
272	&nor_flash_device,
273#ifndef CONFIG_SH_R7780RP
274	&ax88796_device,
275#endif
276};
277
278/*
279 * The CF is connected using a 16-bit bus where 8-bit operations are
280 * unsupported. The linux ata driver is however using 8-bit operations, so
281 * insert a trapped io filter to convert 8-bit operations into 16-bit.
282 */
283static struct trapped_io cf_trapped_io = {
284	.resource		= cf_ide_resources,
285	.num_resources		= 2,
286	.minimum_bus_width	= 16,
287};
288
289static int __init r7780rp_devices_setup(void)
290{
291	int ret = 0;
292
293#ifndef CONFIG_SH_R7780RP
294	if (register_trapped_io(&cf_trapped_io) == 0)
295		ret |= platform_device_register(&cf_ide_device);
296#endif
297
298	ret |= platform_add_devices(r7780rp_devices,
299				    ARRAY_SIZE(r7780rp_devices));
300
301	ret |= i2c_register_board_info(0, highlander_i2c_devices,
302				       ARRAY_SIZE(highlander_i2c_devices));
303
304	return ret;
305}
306device_initcall(r7780rp_devices_setup);
307
308/*
309 * Platform specific clocks
310 */
311static int ivdr_clk_enable(struct clk *clk)
312{
313	__raw_writew(__raw_readw(PA_IVDRCTL) | (1 << IVDR_CK_ON), PA_IVDRCTL);
314	return 0;
315}
316
317static void ivdr_clk_disable(struct clk *clk)
318{
319	__raw_writew(__raw_readw(PA_IVDRCTL) & ~(1 << IVDR_CK_ON), PA_IVDRCTL);
320}
321
322static struct sh_clk_ops ivdr_clk_ops = {
323	.enable		= ivdr_clk_enable,
324	.disable	= ivdr_clk_disable,
325};
326
327static struct clk ivdr_clk = {
328	.ops		= &ivdr_clk_ops,
329};
330
331static struct clk *r7780rp_clocks[] = {
332	&ivdr_clk,
333};
334
335static struct clk_lookup lookups[] = {
336	/* main clocks */
337	CLKDEV_CON_ID("ivdr_clk", &ivdr_clk),
338};
339
340static void r7780rp_power_off(void)
341{
342	if (mach_is_r7780mp() || mach_is_r7785rp())
343		__raw_writew(0x0001, PA_POFF);
344}
345
346/*
347 * Initialize the board
348 */
349static void __init highlander_setup(char **cmdline_p)
350{
351	u16 ver = __raw_readw(PA_VERREG);
352	int i;
353
354	printk(KERN_INFO "Renesas Solutions Highlander %s support.\n",
355			 mach_is_r7780rp() ? "R7780RP-1" :
356			 mach_is_r7780mp() ? "R7780MP"	 :
357					     "R7785RP");
358
359	printk(KERN_INFO "Board version: %d (revision %d), "
360			 "FPGA version: %d (revision %d)\n",
361			 (ver >> 12) & 0xf, (ver >> 8) & 0xf,
362			 (ver >>  4) & 0xf, ver & 0xf);
363
364	highlander_plat_pinmux_setup();
365
366	/*
367	 * Enable the important clocks right away..
368	 */
369	for (i = 0; i < ARRAY_SIZE(r7780rp_clocks); i++) {
370		struct clk *clk = r7780rp_clocks[i];
371
372		clk_register(clk);
373		clk_enable(clk);
374	}
375
376	clkdev_add_table(lookups, ARRAY_SIZE(lookups));
377
378	__raw_writew(0x0000, PA_OBLED);	/* Clear LED. */
379
380	if (mach_is_r7780rp())
381		__raw_writew(0x0001, PA_SDPOW);	/* SD Power ON */
382
383	__raw_writew(__raw_readw(PA_IVDRCTL) | 0x01, PA_IVDRCTL);	/* Si13112 */
384
385	pm_power_off = r7780rp_power_off;
386}
387
388static unsigned char irl2irq[HL_NR_IRL];
389
390static int highlander_irq_demux(int irq)
391{
392	if (irq >= HL_NR_IRL + 16 || irq < 16 || !irl2irq[irq - 16])
393		return irq;
394
395	return irl2irq[irq - 16];
396}
397
398static void __init highlander_init_irq(void)
399{
400	unsigned char *ucp = highlander_plat_irq_setup();
401
402	if (ucp) {
403		plat_irq_setup_pins(IRQ_MODE_IRL3210);
404		memcpy(irl2irq, ucp, HL_NR_IRL);
405	}
406}
407
408/*
409 * The Machine Vector
410 */
411static struct sh_machine_vector mv_highlander __initmv = {
412	.mv_name		= "Highlander",
413	.mv_setup		= highlander_setup,
414	.mv_init_irq		= highlander_init_irq,
415	.mv_irq_demux		= highlander_irq_demux,
416};
417