2 * (C) Copyright 2007-2008
3 * Stelian Pop <stelian@popies.net>
4 * Lead Tech Design <www.leadtechdesign.com>
6 * Achim Ehrlich <aehrlich@taskit.de>
7 * taskit GmbH <www.taskit.de>
10 * Markus Hubig <mhubig@imko.de>
11 * IMKO GmbH <www.imko.de>
13 * Heiko Schocher <hs@denx.de>
14 * DENX Software Engineering GmbH
16 * SPDX-License-Identifier: GPL-2.0+
22 #include <asm/arch/at91sam9_sdramc.h>
23 #include <asm/arch/at91sam9260_matrix.h>
24 #include <asm/arch/at91sam9_smc.h>
25 #include <asm/arch/at91_common.h>
26 #include <asm/arch/atmel_serial.h>
27 #include <asm/arch/at91_spi.h>
29 #include <asm/arch/clk.h>
30 #include <asm/arch/gpio.h>
39 DECLARE_GLOBAL_DATA_PTR;
41 static void smartweb_request_gpio(void)
43 gpio_request(CONFIG_SYS_NAND_ENABLE_PIN, "nand ena");
44 gpio_request(CONFIG_SYS_NAND_READY_PIN, "nand rdy");
45 gpio_request(AT91_PIN_PA26, "ena PHY");
48 static void smartweb_nand_hw_init(void)
50 struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
51 struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
54 /* Assign CS3 to NAND/SmartMedia Interface */
55 csa = readl(&matrix->ebicsa);
56 csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA;
57 writel(csa, &matrix->ebicsa);
59 /* Configure SMC CS3 for NAND/SmartMedia */
60 writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
61 AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
63 writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) |
64 AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3),
66 writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5),
68 writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
69 AT91_SMC_MODE_TDF_CYCLE(2),
72 /* Configure RDY/BSY */
73 at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
75 /* Enable NandFlash */
76 at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
79 static void smartweb_macb_hw_init(void)
81 struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA;
83 /* Enable the PHY Chip via PA26 on the Stamp 2 Adaptor */
84 at91_set_gpio_output(AT91_PIN_PA26, 0);
88 * RXDV (PA17) => PHY normal mode (not Test mode)
89 * ERX0 (PA14) => PHY ADDR0
90 * ERX1 (PA15) => PHY ADDR1
91 * ERX2 (PA25) => PHY ADDR2
92 * ERX3 (PA26) => PHY ADDR3
93 * ECRS (PA28) => PHY ADDR4 => PHYADDR = 0x0
95 * PHY has internal pull-down
97 writel(pin_to_mask(AT91_PIN_PA14) |
98 pin_to_mask(AT91_PIN_PA15) |
99 pin_to_mask(AT91_PIN_PA17) |
100 pin_to_mask(AT91_PIN_PA25) |
101 pin_to_mask(AT91_PIN_PA26) |
102 pin_to_mask(AT91_PIN_PA28) |
103 pin_to_mask(AT91_PIN_PA29),
108 /* Re-enable pull-up */
109 writel(pin_to_mask(AT91_PIN_PA14) |
110 pin_to_mask(AT91_PIN_PA15) |
111 pin_to_mask(AT91_PIN_PA17) |
112 pin_to_mask(AT91_PIN_PA25) |
113 pin_to_mask(AT91_PIN_PA26) |
114 pin_to_mask(AT91_PIN_PA28) |
115 pin_to_mask(AT91_PIN_PA29),
118 /* Initialize EMAC=MACB hardware */
122 #ifdef CONFIG_USB_GADGET_AT91
123 #include <linux/usb/at91_udc.h>
125 void at91_udp_hw_init(void)
128 at91_pllb_clk_enable(get_pllb_init());
130 /* Enable UDPCK clock, MCK is enabled in at91_clock_init() */
131 at91_periph_clk_enable(ATMEL_ID_UDP);
133 at91_system_clk_enable(AT91SAM926x_PMC_UDP);
136 struct at91_udc_data board_udc_data = {
137 .baseaddr = ATMEL_BASE_UDP0,
141 int board_early_init_f(void)
143 /* enable this here, as we have SPL without serial support */
144 at91_seriald_hw_init();
145 smartweb_request_gpio();
151 smartweb_request_gpio();
153 at91_set_gpio_output(AT91_PIN_PC6, 0);
154 at91_set_gpio_output(AT91_PIN_PC7, 1);
156 at91_set_gpio_output(AT91_PIN_PC8, 0);
157 at91_set_gpio_output(AT91_PIN_PC9, 0);
159 at91_set_gpio_output(AT91_PIN_PC10, 0);
160 at91_set_gpio_output(AT91_PIN_PC11, 1);
162 #ifdef CONFIG_USB_GADGET_AT91
164 at91_udc_probe(&board_udc_data);
167 /* Adress of boot parameters */
168 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
170 smartweb_nand_hw_init();
171 smartweb_macb_hw_init();
177 gd->ram_size = get_ram_size(
178 (void *)CONFIG_SYS_SDRAM_BASE,
179 CONFIG_SYS_SDRAM_SIZE);
183 #ifndef CONFIG_DM_ETH
185 int board_eth_init(bd_t *bis)
187 return macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC0, 0x00);
189 #endif /* CONFIG_MACB */
192 #if defined(CONFIG_SPL_BUILD)
195 #include <spi_flash.h>
197 void matrix_init(void)
199 struct at91_matrix *mat = (struct at91_matrix *)ATMEL_BASE_MATRIX;
201 writel((readl(&mat->scfg[3]) & (~AT91_MATRIX_SLOT_CYCLE))
202 | AT91_MATRIX_SLOT_CYCLE_(0x40),
206 void at91_spl_board_init(void)
208 smartweb_request_gpio();
209 /* power LED orange */
210 at91_set_gpio_output(AT91_PIN_PC6, 1);
211 at91_set_gpio_output(AT91_PIN_PC7, 1);
212 /* alarm LED orange */
213 at91_set_gpio_output(AT91_PIN_PC8, 1);
214 at91_set_gpio_output(AT91_PIN_PC9, 1);
216 at91_set_gpio_output(AT91_PIN_PC10, 0);
217 at91_set_gpio_output(AT91_PIN_PC11, 1);
219 smartweb_nand_hw_init();
220 at91_set_gpio_input(AT91_PIN_PA28, 1);
221 at91_set_gpio_input(AT91_PIN_PA29, 1);
223 /* check if both button are pressed */
224 if (at91_get_gpio_value(AT91_PIN_PA28) == 0 &&
225 at91_get_gpio_value(AT91_PIN_PA29) == 0) {
226 smartweb_nand_hw_init();
228 spl_nand_erase_one(0, 0);
232 #define SDRAM_BASE_CONF (AT91_SDRAMC_NC_9 | AT91_SDRAMC_NR_13 \
233 | AT91_SDRAMC_CAS_2 \
234 | AT91_SDRAMC_NB_4 | AT91_SDRAMC_DBW_32 \
235 | AT91_SDRAMC_TWR_VAL(2) | AT91_SDRAMC_TRC_VAL(7) \
236 | AT91_SDRAMC_TRP_VAL(2) | AT91_SDRAMC_TRCD_VAL(2) \
237 | AT91_SDRAMC_TRAS_VAL(5) | AT91_SDRAMC_TXSR_VAL(8))
241 struct at91_matrix *ma = (struct at91_matrix *)ATMEL_BASE_MATRIX;
242 struct at91_port *port = (struct at91_port *)ATMEL_BASE_PIOC;
243 struct sdramc_reg setting;
245 setting.cr = SDRAM_BASE_CONF;
246 setting.mdr = AT91_SDRAMC_MD_SDRAM;
247 setting.tr = (CONFIG_SYS_MASTER_CLOCK * 7) / 1000000;
250 * I write here directly in this register, because this
251 * approach is smaller than calling at91_set_a_periph() in a
252 * for loop. This saved me 96 bytes.
254 writel(0xffff0000, &port->pdr);
256 writel(readl(&ma->ebicsa) | AT91_MATRIX_CS1A_SDRAMC, &ma->ebicsa);
257 sdramc_initialize(ATMEL_BASE_CS1, &setting);
261 int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
263 g_dnl_set_serialnumber("1");