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"
33 * The ATSTK1006 daughterboard is very similar to the ATSTK1002. Both
34 * have the AT32AP7000 chip on board; the difference is that the
35 * STK1006 has 128 MB SDRAM (the STK1002 uses the 8 MB SDRAM chip on
36 * the STK1000 motherboard) and 256 MB NAND flash (the STK1002 has
39 * The RAM difference is handled by the boot loader, so the only
40 * difference we end up handling here is the NAND flash.
42 #ifdef CONFIG_BOARD_ATSTK1006
43 #include <linux/mtd/partitions.h>
44 #include <asm/arch/smc.h>
46 static struct smc_timing nand_timing __initdata = {
54 .ncs_write_pulse = 30,
60 .ncs_read_recover = 0,
62 .ncs_write_recover = 0,
63 /* WE# high -> RE# low min 60 ns */
67 static struct smc_config nand_config __initdata = {
77 static struct mtd_partition nand_partitions[] = {
81 .size = MTDPART_SIZ_FULL,
85 static struct mtd_partition *nand_part_info(int size, int *num_partitions)
87 *num_partitions = ARRAY_SIZE(nand_partitions);
88 return nand_partitions;
91 struct atmel_nand_data atstk1006_nand_data __initdata = {
94 .rdy_pin = GPIO_PIN_PB(30),
95 .enable_pin = GPIO_PIN_PB(29),
96 .partition_info = nand_part_info,
104 static struct eth_addr __initdata hw_addr[2];
105 static struct eth_platform_data __initdata eth_data[2] = {
108 * The MDIO pullups on STK1000 are a bit too weak for
109 * the autodetection to work properly, so we have to
110 * mask out everything but the correct address.
112 .phy_mask = ~(1U << 16),
115 .phy_mask = ~(1U << 17),
119 #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
120 static struct at73c213_board_info at73c213_data = {
122 .shortname = "AVR32 STK1000 external DAC",
126 #ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
127 static struct spi_board_info spi0_board_info[] __initdata = {
128 #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
131 .modalias = "at73c213",
132 .max_speed_hz = 200000,
135 .platform_data = &at73c213_data,
140 .modalias = "ltv350qv",
141 .max_speed_hz = 16000000,
148 #ifdef CONFIG_BOARD_ATSTK100X_SPI1
149 static struct spi_board_info spi1_board_info[] __initdata = { {
150 /* patch in custom entries here */
155 * The next two functions should go away as the boot loader is
156 * supposed to initialize the macb address registers with a valid
157 * ethernet address. But we need to keep it around for a while until
158 * we can be reasonably sure the boot loader does this.
160 * The phy_id is ignored as the driver will probe for it.
162 static int __init parse_tag_ethernet(struct tag *tag)
166 i = tag->u.ethernet.mac_index;
167 if (i < ARRAY_SIZE(hw_addr))
168 memcpy(hw_addr[i].addr, tag->u.ethernet.hw_address,
169 sizeof(hw_addr[i].addr));
173 __tagtable(ATAG_ETHERNET, parse_tag_ethernet);
175 static void __init set_hw_addr(struct platform_device *pdev)
177 struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
184 if (pdev->id >= ARRAY_SIZE(hw_addr))
187 addr = hw_addr[pdev->id].addr;
188 if (!is_valid_ether_addr(addr))
192 * Since this is board-specific code, we'll cheat and use the
193 * physical address directly as we happen to know that it's
194 * the same as the virtual address.
196 regs = (void __iomem __force *)res->start;
197 pclk = clk_get(&pdev->dev, "pclk");
202 __raw_writel((addr[3] << 24) | (addr[2] << 16)
203 | (addr[1] << 8) | addr[0], regs + 0x98);
204 __raw_writel((addr[5] << 8) | addr[4], regs + 0x9c);
209 #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
210 static void __init atstk1002_setup_extdac(void)
215 gclk = clk_get(NULL, "gclk0");
218 pll = clk_get(NULL, "pll0");
222 if (clk_set_parent(gclk, pll)) {
223 pr_debug("STK1000: failed to set pll0 as parent for DAC clock\n");
227 at32_select_periph(GPIO_PIN_PA(30), GPIO_PERIPH_A, 0);
228 at73c213_data.dac_clk = gclk;
238 static void __init atstk1002_setup_extdac(void)
242 #endif /* CONFIG_BOARD_ATSTK1000_EXTDAC */
244 void __init setup_board(void)
246 #ifdef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
247 at32_map_usart(0, 1); /* USART 0/B: /dev/ttyS1, IRDA */
249 at32_map_usart(1, 0); /* USART 1/A: /dev/ttyS0, DB9 */
251 /* USART 2/unused: expansion connector */
252 at32_map_usart(3, 2); /* USART 3/C: /dev/ttyS2, DB9 */
254 at32_setup_serial_console(0);
257 static int __init atstk1002_init(void)
260 * ATSTK1000 uses 32-bit SDRAM interface. Reserve the
261 * SDRAM-specific pins so that nobody messes with them.
263 at32_reserve_pin(GPIO_PIN_PE(0)); /* DATA[16] */
264 at32_reserve_pin(GPIO_PIN_PE(1)); /* DATA[17] */
265 at32_reserve_pin(GPIO_PIN_PE(2)); /* DATA[18] */
266 at32_reserve_pin(GPIO_PIN_PE(3)); /* DATA[19] */
267 at32_reserve_pin(GPIO_PIN_PE(4)); /* DATA[20] */
268 at32_reserve_pin(GPIO_PIN_PE(5)); /* DATA[21] */
269 at32_reserve_pin(GPIO_PIN_PE(6)); /* DATA[22] */
270 at32_reserve_pin(GPIO_PIN_PE(7)); /* DATA[23] */
271 at32_reserve_pin(GPIO_PIN_PE(8)); /* DATA[24] */
272 at32_reserve_pin(GPIO_PIN_PE(9)); /* DATA[25] */
273 at32_reserve_pin(GPIO_PIN_PE(10)); /* DATA[26] */
274 at32_reserve_pin(GPIO_PIN_PE(11)); /* DATA[27] */
275 at32_reserve_pin(GPIO_PIN_PE(12)); /* DATA[28] */
276 at32_reserve_pin(GPIO_PIN_PE(13)); /* DATA[29] */
277 at32_reserve_pin(GPIO_PIN_PE(14)); /* DATA[30] */
278 at32_reserve_pin(GPIO_PIN_PE(15)); /* DATA[31] */
279 at32_reserve_pin(GPIO_PIN_PE(26)); /* SDCS */
281 at32_add_system_devices();
283 #ifdef CONFIG_BOARD_ATSTK1006
284 smc_set_timing(&nand_config, &nand_timing);
285 smc_set_configuration(3, &nand_config);
286 at32_add_device_nand(0, &atstk1006_nand_data);
289 #ifdef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
290 at32_add_device_usart(1);
292 at32_add_device_usart(0);
294 at32_add_device_usart(2);
296 #ifndef CONFIG_BOARD_ATSTK1002_SW6_CUSTOM
297 set_hw_addr(at32_add_device_eth(0, ð_data[0]));
299 #ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
300 at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
302 #ifdef CONFIG_BOARD_ATSTK100X_SPI1
303 at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
305 #ifdef CONFIG_BOARD_ATSTK1002_SW5_CUSTOM
306 set_hw_addr(at32_add_device_eth(1, ð_data[1]));
308 at32_add_device_lcdc(0, &atstk1000_lcdc_data,
309 fbmem_start, fbmem_size);
311 at32_add_device_usba(0, NULL);
312 #ifndef CONFIG_BOARD_ATSTK100X_SW3_CUSTOM
313 at32_add_device_ssc(0, ATMEL_SSC_TX);
316 atstk1000_setup_j2_leds();
317 atstk1002_setup_extdac();
321 postcore_initcall(atstk1002_init);