2 * ATSTK1002/ATSTK1006 daughterboard-specific init code
4 * Copyright (C) 2005-2007 Atmel Corporation
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.
10 #include <linux/clk.h>
11 #include <linux/etherdevice.h>
12 #include <linux/init.h>
13 #include <linux/kernel.h>
14 #include <linux/platform_device.h>
15 #include <linux/string.h>
16 #include <linux/types.h>
17 #include <linux/spi/spi.h>
18 #include <linux/spi/at73c213.h>
20 #include <video/atmel_lcdc.h>
23 #include <asm/setup.h>
24 #include <asm/arch/at32ap700x.h>
25 #include <asm/arch/board.h>
26 #include <asm/arch/init.h>
27 #include <asm/arch/portmux.h>
29 #include "atstk1000.h"
31 /* Oscillator frequencies. These are board specific */
32 unsigned long at32_board_osc_rates
[3] = {
33 [0] = 32768, /* 32.768 kHz on RTC osc */
34 [1] = 20000000, /* 20 MHz on osc0 */
35 [2] = 12000000, /* 12 MHz on osc1 */
39 * The ATSTK1006 daughterboard is very similar to the ATSTK1002. Both
40 * have the AT32AP7000 chip on board; the difference is that the
41 * STK1006 has 128 MB SDRAM (the STK1002 uses the 8 MB SDRAM chip on
42 * the STK1000 motherboard) and 256 MB NAND flash (the STK1002 has
45 * The RAM difference is handled by the boot loader, so the only
46 * difference we end up handling here is the NAND flash.
48 #ifdef CONFIG_BOARD_ATSTK1006
49 #include <linux/mtd/partitions.h>
50 #include <asm/arch/smc.h>
52 static struct smc_timing nand_timing __initdata
= {
60 .ncs_write_pulse
= 30,
66 .ncs_read_recover
= 0,
68 .ncs_write_recover
= 0,
69 /* WE# high -> RE# low min 60 ns */
73 static struct smc_config nand_config __initdata
= {
83 static struct mtd_partition nand_partitions
[] = {
87 .size
= MTDPART_SIZ_FULL
,
91 static struct mtd_partition
*nand_part_info(int size
, int *num_partitions
)
93 *num_partitions
= ARRAY_SIZE(nand_partitions
);
94 return nand_partitions
;
97 struct atmel_nand_data atstk1006_nand_data __initdata
= {
100 .rdy_pin
= GPIO_PIN_PB(30),
101 .enable_pin
= GPIO_PIN_PB(29),
102 .partition_info
= nand_part_info
,
110 static struct eth_addr __initdata hw_addr
[2];
111 static struct eth_platform_data __initdata eth_data
[2] = {
114 * The MDIO pullups on STK1000 are a bit too weak for
115 * the autodetection to work properly, so we have to
116 * mask out everything but the correct address.
118 .phy_mask
= ~(1U << 16),
121 .phy_mask
= ~(1U << 17),
125 #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
126 static struct at73c213_board_info at73c213_data
= {
128 .shortname
= "AVR32 STK1000 external DAC",
132 #ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
133 static struct spi_board_info spi0_board_info
[] __initdata
= {
134 #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
137 .modalias
= "at73c213",
138 .max_speed_hz
= 200000,
141 .platform_data
= &at73c213_data
,
146 .modalias
= "ltv350qv",
147 .max_speed_hz
= 16000000,
154 #ifdef CONFIG_BOARD_ATSTK100X_SPI1
155 static struct spi_board_info spi1_board_info
[] __initdata
= { {
156 /* patch in custom entries here */
161 * The next two functions should go away as the boot loader is
162 * supposed to initialize the macb address registers with a valid
163 * ethernet address. But we need to keep it around for a while until
164 * we can be reasonably sure the boot loader does this.
166 * The phy_id is ignored as the driver will probe for it.
168 static int __init
parse_tag_ethernet(struct tag
*tag
)
172 i
= tag
->u
.ethernet
.mac_index
;
173 if (i
< ARRAY_SIZE(hw_addr
))
174 memcpy(hw_addr
[i
].addr
, tag
->u
.ethernet
.hw_address
,
175 sizeof(hw_addr
[i
].addr
));
179 __tagtable(ATAG_ETHERNET
, parse_tag_ethernet
);
181 static void __init
set_hw_addr(struct platform_device
*pdev
)
183 struct resource
*res
= platform_get_resource(pdev
, IORESOURCE_MEM
, 0);
190 if (pdev
->id
>= ARRAY_SIZE(hw_addr
))
193 addr
= hw_addr
[pdev
->id
].addr
;
194 if (!is_valid_ether_addr(addr
))
198 * Since this is board-specific code, we'll cheat and use the
199 * physical address directly as we happen to know that it's
200 * the same as the virtual address.
202 regs
= (void __iomem __force
*)res
->start
;
203 pclk
= clk_get(&pdev
->dev
, "pclk");
208 __raw_writel((addr
[3] << 24) | (addr
[2] << 16)
209 | (addr
[1] << 8) | addr
[0], regs
+ 0x98);
210 __raw_writel((addr
[5] << 8) | addr
[4], regs
+ 0x9c);
215 #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
216 static void __init
atstk1002_setup_extdac(void)
221 gclk
= clk_get(NULL
, "gclk0");
224 pll
= clk_get(NULL
, "pll0");
228 if (clk_set_parent(gclk
, pll
)) {
229 pr_debug("STK1000: failed to set pll0 as parent for DAC clock\n");
233 at32_select_periph(GPIO_PIN_PA(30), GPIO_PERIPH_A
, 0);
234 at73c213_data
.dac_clk
= gclk
;
244 static void __init
atstk1002_setup_extdac(void)
248 #endif /* CONFIG_BOARD_ATSTK1000_EXTDAC */
250 void __init
setup_board(void)
252 #ifdef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
253 at32_map_usart(0, 1); /* USART 0/B: /dev/ttyS1, IRDA */
255 at32_map_usart(1, 0); /* USART 1/A: /dev/ttyS0, DB9 */
257 /* USART 2/unused: expansion connector */
258 at32_map_usart(3, 2); /* USART 3/C: /dev/ttyS2, DB9 */
260 at32_setup_serial_console(0);
263 static int __init
atstk1002_init(void)
266 * ATSTK1000 uses 32-bit SDRAM interface. Reserve the
267 * SDRAM-specific pins so that nobody messes with them.
269 at32_reserve_pin(GPIO_PIN_PE(0)); /* DATA[16] */
270 at32_reserve_pin(GPIO_PIN_PE(1)); /* DATA[17] */
271 at32_reserve_pin(GPIO_PIN_PE(2)); /* DATA[18] */
272 at32_reserve_pin(GPIO_PIN_PE(3)); /* DATA[19] */
273 at32_reserve_pin(GPIO_PIN_PE(4)); /* DATA[20] */
274 at32_reserve_pin(GPIO_PIN_PE(5)); /* DATA[21] */
275 at32_reserve_pin(GPIO_PIN_PE(6)); /* DATA[22] */
276 at32_reserve_pin(GPIO_PIN_PE(7)); /* DATA[23] */
277 at32_reserve_pin(GPIO_PIN_PE(8)); /* DATA[24] */
278 at32_reserve_pin(GPIO_PIN_PE(9)); /* DATA[25] */
279 at32_reserve_pin(GPIO_PIN_PE(10)); /* DATA[26] */
280 at32_reserve_pin(GPIO_PIN_PE(11)); /* DATA[27] */
281 at32_reserve_pin(GPIO_PIN_PE(12)); /* DATA[28] */
282 at32_reserve_pin(GPIO_PIN_PE(13)); /* DATA[29] */
283 at32_reserve_pin(GPIO_PIN_PE(14)); /* DATA[30] */
284 at32_reserve_pin(GPIO_PIN_PE(15)); /* DATA[31] */
285 at32_reserve_pin(GPIO_PIN_PE(26)); /* SDCS */
287 at32_add_system_devices();
289 #ifdef CONFIG_BOARD_ATSTK1006
290 smc_set_timing(&nand_config
, &nand_timing
);
291 smc_set_configuration(3, &nand_config
);
292 at32_add_device_nand(0, &atstk1006_nand_data
);
295 #ifdef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
296 at32_add_device_usart(1);
298 at32_add_device_usart(0);
300 at32_add_device_usart(2);
302 #ifndef CONFIG_BOARD_ATSTK1002_SW6_CUSTOM
303 set_hw_addr(at32_add_device_eth(0, ð_data
[0]));
305 #ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
306 at32_add_device_spi(0, spi0_board_info
, ARRAY_SIZE(spi0_board_info
));
308 #ifdef CONFIG_BOARD_ATSTK100X_SPI1
309 at32_add_device_spi(1, spi1_board_info
, ARRAY_SIZE(spi1_board_info
));
311 #ifndef CONFIG_BOARD_ATSTK1002_SW2_CUSTOM
312 at32_add_device_mci(0, NULL
);
314 #ifdef CONFIG_BOARD_ATSTK1002_SW5_CUSTOM
315 set_hw_addr(at32_add_device_eth(1, ð_data
[1]));
317 at32_add_device_lcdc(0, &atstk1000_lcdc_data
,
318 fbmem_start
, fbmem_size
, 0);
320 at32_add_device_usba(0, NULL
);
321 #ifndef CONFIG_BOARD_ATSTK100X_SW3_CUSTOM
322 at32_add_device_ssc(0, ATMEL_SSC_TX
);
325 atstk1000_setup_j2_leds();
326 atstk1002_setup_extdac();
330 postcore_initcall(atstk1002_init
);