Merge branch 'topic/cs46xx-drop-fw' into for-next
[linux-2.6-block.git] / arch / avr32 / boards / atstk1000 / atstk1002.c
CommitLineData
5f97f7f9 1/*
e150d6e7 2 * ATSTK1002/ATSTK1006 daughterboard-specific init code
5f97f7f9 3 *
e150d6e7 4 * Copyright (C) 2005-2007 Atmel Corporation
5f97f7f9
HS
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
c164b901
HS
10#include <linux/clk.h>
11#include <linux/etherdevice.h>
5f97f7f9 12#include <linux/init.h>
a6f92f3d 13#include <linux/kernel.h>
c164b901 14#include <linux/platform_device.h>
a6f92f3d
HS
15#include <linux/string.h>
16#include <linux/types.h>
3d60ee1b 17#include <linux/spi/spi.h>
1c2f1737 18#include <linux/spi/at73c213.h>
c42aa775 19#include <linux/atmel-mci.h>
5f97f7f9 20
d0a2b7af
HS
21#include <video/atmel_lcdc.h>
22
c164b901 23#include <asm/io.h>
a6f92f3d 24#include <asm/setup.h>
3c26e170 25
3663b736
HS
26#include <mach/at32ap700x.h>
27#include <mach/board.h>
28#include <mach/init.h>
29#include <mach/portmux.h>
5f97f7f9 30
d0a2b7af 31#include "atstk1000.h"
a3d912c8 32
60ed7951
A
33/* Oscillator frequencies. These are board specific */
34unsigned long at32_board_osc_rates[3] = {
35 [0] = 32768, /* 32.768 kHz on RTC osc */
36 [1] = 20000000, /* 20 MHz on osc0 */
37 [2] = 12000000, /* 12 MHz on osc1 */
38};
a3d912c8 39
e150d6e7
HS
40/*
41 * The ATSTK1006 daughterboard is very similar to the ATSTK1002. Both
42 * have the AT32AP7000 chip on board; the difference is that the
43 * STK1006 has 128 MB SDRAM (the STK1002 uses the 8 MB SDRAM chip on
44 * the STK1000 motherboard) and 256 MB NAND flash (the STK1002 has
45 * none.)
46 *
47 * The RAM difference is handled by the boot loader, so the only
48 * difference we end up handling here is the NAND flash.
49 */
50#ifdef CONFIG_BOARD_ATSTK1006
51#include <linux/mtd/partitions.h>
3663b736 52#include <mach/smc.h>
e150d6e7
HS
53
54static struct smc_timing nand_timing __initdata = {
55 .ncs_read_setup = 0,
56 .nrd_setup = 10,
57 .ncs_write_setup = 0,
58 .nwe_setup = 10,
59
60 .ncs_read_pulse = 30,
61 .nrd_pulse = 15,
62 .ncs_write_pulse = 30,
63 .nwe_pulse = 15,
64
65 .read_cycle = 30,
66 .write_cycle = 30,
67
68 .ncs_read_recover = 0,
69 .nrd_recover = 15,
70 .ncs_write_recover = 0,
71 /* WE# high -> RE# low min 60 ns */
72 .nwe_recover = 50,
73};
74
75static struct smc_config nand_config __initdata = {
76 .bus_width = 1,
77 .nrd_controlled = 1,
78 .nwe_controlled = 1,
79 .nwait_mode = 0,
80 .byte_write = 0,
81 .tdf_cycles = 2,
82 .tdf_mode = 0,
83};
84
85static struct mtd_partition nand_partitions[] = {
86 {
87 .name = "main",
88 .offset = 0x00000000,
89 .size = MTDPART_SIZ_FULL,
90 },
91};
92
33f197a6 93static struct atmel_nand_data atstk1006_nand_data __initdata = {
e150d6e7
HS
94 .cle = 21,
95 .ale = 22,
96 .rdy_pin = GPIO_PIN_PB(30),
97 .enable_pin = GPIO_PIN_PB(29),
bf4289cb 98 .ecc_mode = NAND_ECC_SOFT,
1754aab9 99 .parts = nand_partitions,
6c55845e 100 .num_parts = ARRAY_SIZE(nand_partitions),
e150d6e7
HS
101};
102#endif
103
c164b901
HS
104struct eth_addr {
105 u8 addr[6];
106};
107
108static struct eth_addr __initdata hw_addr[2];
84e0cdb0 109static struct macb_platform_data __initdata eth_data[2] = {
587ca761
HS
110 {
111 /*
112 * The MDIO pullups on STK1000 are a bit too weak for
113 * the autodetection to work properly, so we have to
114 * mask out everything but the correct address.
115 */
116 .phy_mask = ~(1U << 16),
117 },
118 {
119 .phy_mask = ~(1U << 17),
120 },
121};
5f97f7f9 122
64d81052 123#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
1c2f1737
HCE
124static struct at73c213_board_info at73c213_data = {
125 .ssc_id = 0,
126 .shortname = "AVR32 STK1000 external DAC",
127};
128#endif
1c2f1737 129
78693e47 130#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
41d8ca45 131static struct spi_board_info spi0_board_info[] __initdata = {
64d81052 132#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
1c2f1737
HCE
133 {
134 /* AT73C213 */
135 .modalias = "at73c213",
136 .max_speed_hz = 200000,
137 .chip_select = 0,
138 .mode = SPI_MODE_1,
139 .platform_data = &at73c213_data,
140 },
141#endif
3d60ee1b 142 {
41d8ca45 143 /* QVGA display */
3d60ee1b 144 .modalias = "ltv350qv",
3d60ee1b 145 .max_speed_hz = 16000000,
3d60ee1b 146 .chip_select = 1,
2fdfe8d9 147 .mode = SPI_MODE_3,
3d60ee1b
HS
148 },
149};
a8e93ed8
DB
150#endif
151
78693e47 152#ifdef CONFIG_BOARD_ATSTK100X_SPI1
a8e93ed8
DB
153static struct spi_board_info spi1_board_info[] __initdata = { {
154 /* patch in custom entries here */
155} };
156#endif
3d60ee1b 157
c164b901
HS
158/*
159 * The next two functions should go away as the boot loader is
160 * supposed to initialize the macb address registers with a valid
161 * ethernet address. But we need to keep it around for a while until
162 * we can be reasonably sure the boot loader does this.
163 *
164 * The phy_id is ignored as the driver will probe for it.
165 */
a6f92f3d
HS
166static int __init parse_tag_ethernet(struct tag *tag)
167{
168 int i;
169
170 i = tag->u.ethernet.mac_index;
c164b901
HS
171 if (i < ARRAY_SIZE(hw_addr))
172 memcpy(hw_addr[i].addr, tag->u.ethernet.hw_address,
173 sizeof(hw_addr[i].addr));
174
a6f92f3d
HS
175 return 0;
176}
177__tagtable(ATAG_ETHERNET, parse_tag_ethernet);
178
c164b901
HS
179static void __init set_hw_addr(struct platform_device *pdev)
180{
181 struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
182 const u8 *addr;
183 void __iomem *regs;
184 struct clk *pclk;
185
186 if (!res)
187 return;
188 if (pdev->id >= ARRAY_SIZE(hw_addr))
189 return;
190
191 addr = hw_addr[pdev->id].addr;
192 if (!is_valid_ether_addr(addr))
193 return;
194
195 /*
196 * Since this is board-specific code, we'll cheat and use the
197 * physical address directly as we happen to know that it's
198 * the same as the virtual address.
199 */
200 regs = (void __iomem __force *)res->start;
201 pclk = clk_get(&pdev->dev, "pclk");
36b471e0 202 if (IS_ERR(pclk))
c164b901
HS
203 return;
204
205 clk_enable(pclk);
206 __raw_writel((addr[3] << 24) | (addr[2] << 16)
207 | (addr[1] << 8) | addr[0], regs + 0x98);
208 __raw_writel((addr[5] << 8) | addr[4], regs + 0x9c);
209 clk_disable(pclk);
210 clk_put(pclk);
211}
212
64d81052
HS
213#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
214static void __init atstk1002_setup_extdac(void)
1c2f1737
HCE
215{
216 struct clk *gclk;
217 struct clk *pll;
218
219 gclk = clk_get(NULL, "gclk0");
220 if (IS_ERR(gclk))
221 goto err_gclk;
222 pll = clk_get(NULL, "pll0");
223 if (IS_ERR(pll))
224 goto err_pll;
225
226 if (clk_set_parent(gclk, pll)) {
227 pr_debug("STK1000: failed to set pll0 as parent for DAC clock\n");
228 goto err_set_clk;
229 }
230
caf18f19 231 at32_select_periph(GPIO_PIOA_BASE, (1 << 30), GPIO_PERIPH_A, 0);
64d81052 232 at73c213_data.dac_clk = gclk;
1c2f1737
HCE
233
234err_set_clk:
235 clk_put(pll);
236err_pll:
237 clk_put(gclk);
238err_gclk:
239 return;
240}
64d81052
HS
241#else
242static void __init atstk1002_setup_extdac(void)
243{
244
245}
246#endif /* CONFIG_BOARD_ATSTK1000_EXTDAC */
1c2f1737 247
c194588d
HS
248void __init setup_board(void)
249{
78693e47 250#ifdef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
bf4861cf 251 at32_map_usart(0, 1, 0); /* USART 0/B: /dev/ttyS1, IRDA */
a8e93ed8 252#else
bf4861cf 253 at32_map_usart(1, 0, 0); /* USART 1/A: /dev/ttyS0, DB9 */
a3d912c8
DB
254#endif
255 /* USART 2/unused: expansion connector */
bf4861cf 256 at32_map_usart(3, 2, 0); /* USART 3/C: /dev/ttyS2, DB9 */
c194588d
HS
257
258 at32_setup_serial_console(0);
259}
260
3c26e170
DB
261#ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
262
6b918657
HS
263static struct mci_platform_data __initdata mci0_data = {
264 .slot[0] = {
265 .bus_width = 4,
266
3c26e170
DB
267/* MMC card detect requires MACB0 *NOT* be used */
268#ifdef CONFIG_BOARD_ATSTK1002_SW6_CUSTOM
6b918657
HS
269 .detect_pin = GPIO_PIN_PC(14), /* gpio30/sdcd */
270 .wp_pin = GPIO_PIN_PC(15), /* gpio31/sdwp */
3c26e170 271#else
6b918657
HS
272 .detect_pin = -ENODEV,
273 .wp_pin = -ENODEV,
3c26e170 274#endif /* SW6 for sd{cd,wp} routing */
6b918657
HS
275 },
276};
3c26e170
DB
277
278#endif /* SW2 for MMC signal routing */
279
5f97f7f9
HS
280static int __init atstk1002_init(void)
281{
7f9f4678
HS
282 /*
283 * ATSTK1000 uses 32-bit SDRAM interface. Reserve the
284 * SDRAM-specific pins so that nobody messes with them.
285 */
adde42b5 286 at32_reserve_pin(GPIO_PIOE_BASE, ATMEL_EBI_PE_DATA_ALL);
7f9f4678 287
e150d6e7
HS
288#ifdef CONFIG_BOARD_ATSTK1006
289 smc_set_timing(&nand_config, &nand_timing);
290 smc_set_configuration(3, &nand_config);
291 at32_add_device_nand(0, &atstk1006_nand_data);
292#endif
293
78693e47 294#ifdef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
c194588d 295 at32_add_device_usart(1);
a8e93ed8
DB
296#else
297 at32_add_device_usart(0);
a3d912c8 298#endif
c194588d 299 at32_add_device_usart(2);
5f97f7f9 300
d4003ba0 301#ifndef CONFIG_BOARD_ATSTK1002_SW6_CUSTOM
c164b901 302 set_hw_addr(at32_add_device_eth(0, &eth_data[0]));
d4003ba0 303#endif
78693e47 304#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
41d8ca45 305 at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
a8e93ed8 306#endif
78693e47 307#ifdef CONFIG_BOARD_ATSTK100X_SPI1
a8e93ed8
DB
308 at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
309#endif
7fb61a7b 310#ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
6eb3ebe0 311 at32_add_device_mci(0, &mci0_data);
7d2be074 312#endif
a8e93ed8
DB
313#ifdef CONFIG_BOARD_ATSTK1002_SW5_CUSTOM
314 set_hw_addr(at32_add_device_eth(1, &eth_data[1]));
315#else
d0a2b7af 316 at32_add_device_lcdc(0, &atstk1000_lcdc_data,
70664124
JM
317 fbmem_start, fbmem_size,
318 ATMEL_LCDC_PRI_24BIT | ATMEL_LCDC_PRI_CONTROL);
a8e93ed8 319#endif
6fcf0615 320 at32_add_device_usba(0, NULL);
78693e47 321#ifndef CONFIG_BOARD_ATSTK100X_SW3_CUSTOM
95a42267
HCE
322 at32_add_device_ssc(0, ATMEL_SSC_TX);
323#endif
5f97f7f9 324
f4c41b26 325 atstk1000_setup_j2_leds();
64d81052 326 atstk1002_setup_extdac();
1c2f1737 327
5f97f7f9
HS
328 return 0;
329}
330postcore_initcall(atstk1002_init);