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3b5df50e HS |
1 | /* |
2 | * (C) Copyright 2007-2008 | |
3 | * Stelian Pop <stelian@popies.net> | |
4 | * Lead Tech Design <www.leadtechdesign.com> | |
5 | * | |
6 | * Achim Ehrlich <aehrlich@taskit.de> | |
7 | * taskit GmbH <www.taskit.de> | |
8 | * | |
9 | * (C) Copyright 2012- | |
10 | * Markus Hubig <mhubig@imko.de> | |
11 | * IMKO GmbH <www.imko.de> | |
12 | * (C) Copyright 2014 | |
13 | * Heiko Schocher <hs@denx.de> | |
14 | * DENX Software Engineering GmbH | |
15 | * | |
16 | * SPDX-License-Identifier: GPL-2.0+ | |
17 | */ | |
18 | ||
19 | #include <common.h> | |
13ee7890 | 20 | #include <dm.h> |
3b5df50e HS |
21 | #include <asm/io.h> |
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> | |
13ee7890 | 26 | #include <asm/arch/atmel_serial.h> |
3b5df50e HS |
27 | #include <asm/arch/at91_spi.h> |
28 | #include <spi.h> | |
e8b81eef | 29 | #include <asm/arch/clk.h> |
3b5df50e | 30 | #include <asm/arch/gpio.h> |
13ee7890 | 31 | #include <asm/gpio.h> |
3b5df50e | 32 | #include <watchdog.h> |
3b5df50e | 33 | # include <net.h> |
13ee7890 | 34 | #ifndef CONFIG_DM_ETH |
3b5df50e HS |
35 | # include <netdev.h> |
36 | #endif | |
37 | ||
38 | DECLARE_GLOBAL_DATA_PTR; | |
39 | ||
13ee7890 HS |
40 | static void smartweb_request_gpio(void) |
41 | { | |
42 | gpio_request(CONFIG_SYS_NAND_ENABLE_PIN, "nand ena"); | |
43 | gpio_request(CONFIG_SYS_NAND_READY_PIN, "nand rdy"); | |
44 | gpio_request(AT91_PIN_PA26, "ena PHY"); | |
45 | } | |
46 | ||
3b5df50e HS |
47 | static void smartweb_nand_hw_init(void) |
48 | { | |
49 | struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC; | |
50 | struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX; | |
51 | unsigned long csa; | |
52 | ||
53 | /* Assign CS3 to NAND/SmartMedia Interface */ | |
54 | csa = readl(&matrix->ebicsa); | |
55 | csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA; | |
56 | writel(csa, &matrix->ebicsa); | |
57 | ||
58 | /* Configure SMC CS3 for NAND/SmartMedia */ | |
59 | writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) | | |
60 | AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0), | |
61 | &smc->cs[3].setup); | |
62 | writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) | | |
63 | AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3), | |
64 | &smc->cs[3].pulse); | |
65 | writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5), | |
66 | &smc->cs[3].cycle); | |
67 | writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE | | |
68 | AT91_SMC_MODE_TDF_CYCLE(2), | |
69 | &smc->cs[3].mode); | |
70 | ||
71 | /* Configure RDY/BSY */ | |
72 | at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1); | |
73 | ||
74 | /* Enable NandFlash */ | |
75 | at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1); | |
76 | } | |
77 | ||
3b5df50e HS |
78 | static void smartweb_macb_hw_init(void) |
79 | { | |
80 | struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA; | |
81 | ||
82 | /* Enable the PHY Chip via PA26 on the Stamp 2 Adaptor */ | |
83 | at91_set_gpio_output(AT91_PIN_PA26, 0); | |
84 | ||
85 | /* | |
86 | * Disable pull-up on: | |
87 | * RXDV (PA17) => PHY normal mode (not Test mode) | |
88 | * ERX0 (PA14) => PHY ADDR0 | |
89 | * ERX1 (PA15) => PHY ADDR1 | |
90 | * ERX2 (PA25) => PHY ADDR2 | |
91 | * ERX3 (PA26) => PHY ADDR3 | |
92 | * ECRS (PA28) => PHY ADDR4 => PHYADDR = 0x0 | |
93 | * | |
94 | * PHY has internal pull-down | |
95 | */ | |
96 | writel(pin_to_mask(AT91_PIN_PA14) | | |
97 | pin_to_mask(AT91_PIN_PA15) | | |
98 | pin_to_mask(AT91_PIN_PA17) | | |
99 | pin_to_mask(AT91_PIN_PA25) | | |
100 | pin_to_mask(AT91_PIN_PA26) | | |
aca5d083 HS |
101 | pin_to_mask(AT91_PIN_PA28) | |
102 | pin_to_mask(AT91_PIN_PA29), | |
3b5df50e HS |
103 | &pioa->pudr); |
104 | ||
105 | at91_phy_reset(); | |
106 | ||
107 | /* Re-enable pull-up */ | |
108 | writel(pin_to_mask(AT91_PIN_PA14) | | |
109 | pin_to_mask(AT91_PIN_PA15) | | |
110 | pin_to_mask(AT91_PIN_PA17) | | |
111 | pin_to_mask(AT91_PIN_PA25) | | |
112 | pin_to_mask(AT91_PIN_PA26) | | |
aca5d083 HS |
113 | pin_to_mask(AT91_PIN_PA28) | |
114 | pin_to_mask(AT91_PIN_PA29), | |
3b5df50e HS |
115 | &pioa->puer); |
116 | ||
117 | /* Initialize EMAC=MACB hardware */ | |
118 | at91_macb_hw_init(); | |
119 | } | |
3b5df50e | 120 | |
e8b81eef HS |
121 | #ifdef CONFIG_USB_GADGET_AT91 |
122 | #include <linux/usb/at91_udc.h> | |
123 | ||
124 | void at91_udp_hw_init(void) | |
125 | { | |
e8b81eef | 126 | /* Enable PLLB */ |
30f65c85 | 127 | at91_pllb_clk_enable(get_pllb_init()); |
e8b81eef HS |
128 | |
129 | /* Enable UDPCK clock, MCK is enabled in at91_clock_init() */ | |
130 | at91_periph_clk_enable(ATMEL_ID_UDP); | |
131 | ||
70341e2e | 132 | at91_system_clk_enable(AT91SAM926x_PMC_UDP); |
e8b81eef HS |
133 | } |
134 | ||
135 | struct at91_udc_data board_udc_data = { | |
136 | .baseaddr = ATMEL_BASE_UDP0, | |
137 | }; | |
138 | #endif | |
139 | ||
3b5df50e HS |
140 | int board_early_init_f(void) |
141 | { | |
142 | /* enable this here, as we have SPL without serial support */ | |
143 | at91_seriald_hw_init(); | |
13ee7890 | 144 | smartweb_request_gpio(); |
3b5df50e HS |
145 | return 0; |
146 | } | |
147 | ||
148 | int board_init(void) | |
149 | { | |
13ee7890 | 150 | smartweb_request_gpio(); |
3b5df50e HS |
151 | /* power LED red */ |
152 | at91_set_gpio_output(AT91_PIN_PC6, 0); | |
153 | at91_set_gpio_output(AT91_PIN_PC7, 1); | |
154 | /* alarm LED off */ | |
155 | at91_set_gpio_output(AT91_PIN_PC8, 0); | |
156 | at91_set_gpio_output(AT91_PIN_PC9, 0); | |
157 | /* prog LED red */ | |
158 | at91_set_gpio_output(AT91_PIN_PC10, 0); | |
159 | at91_set_gpio_output(AT91_PIN_PC11, 1); | |
160 | ||
e8b81eef HS |
161 | #ifdef CONFIG_USB_GADGET_AT91 |
162 | at91_udp_hw_init(); | |
163 | at91_udc_probe(&board_udc_data); | |
164 | #endif | |
165 | ||
aca5d083 HS |
166 | /* Adress of boot parameters */ |
167 | gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; | |
168 | ||
169 | smartweb_nand_hw_init(); | |
aca5d083 | 170 | smartweb_macb_hw_init(); |
3b5df50e HS |
171 | return 0; |
172 | } | |
173 | ||
174 | int dram_init(void) | |
175 | { | |
176 | gd->ram_size = get_ram_size( | |
177 | (void *)CONFIG_SYS_SDRAM_BASE, | |
178 | CONFIG_SYS_SDRAM_SIZE); | |
179 | return 0; | |
180 | } | |
181 | ||
13ee7890 | 182 | #ifndef CONFIG_DM_ETH |
3b5df50e HS |
183 | #ifdef CONFIG_MACB |
184 | int board_eth_init(bd_t *bis) | |
185 | { | |
186 | return macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC0, 0x00); | |
187 | } | |
188 | #endif /* CONFIG_MACB */ | |
13ee7890 | 189 | #endif |
3b5df50e HS |
190 | |
191 | #if defined(CONFIG_SPL_BUILD) | |
192 | #include <spl.h> | |
193 | #include <nand.h> | |
194 | #include <spi_flash.h> | |
195 | ||
196 | void matrix_init(void) | |
197 | { | |
198 | struct at91_matrix *mat = (struct at91_matrix *)ATMEL_BASE_MATRIX; | |
199 | ||
200 | writel((readl(&mat->scfg[3]) & (~AT91_MATRIX_SLOT_CYCLE)) | |
201 | | AT91_MATRIX_SLOT_CYCLE_(0x40), | |
202 | &mat->scfg[3]); | |
203 | } | |
204 | ||
13ee7890 | 205 | void at91_spl_board_init(void) |
3b5df50e | 206 | { |
13ee7890 | 207 | smartweb_request_gpio(); |
aca5d083 | 208 | /* power LED orange */ |
3b5df50e HS |
209 | at91_set_gpio_output(AT91_PIN_PC6, 1); |
210 | at91_set_gpio_output(AT91_PIN_PC7, 1); | |
211 | /* alarm LED orange */ | |
212 | at91_set_gpio_output(AT91_PIN_PC8, 1); | |
213 | at91_set_gpio_output(AT91_PIN_PC9, 1); | |
214 | /* prog LED red */ | |
215 | at91_set_gpio_output(AT91_PIN_PC10, 0); | |
216 | at91_set_gpio_output(AT91_PIN_PC11, 1); | |
217 | ||
218 | smartweb_nand_hw_init(); | |
219 | at91_set_gpio_input(AT91_PIN_PA28, 1); | |
220 | at91_set_gpio_input(AT91_PIN_PA29, 1); | |
221 | ||
222 | /* check if both button are pressed */ | |
223 | if (at91_get_gpio_value(AT91_PIN_PA28) == 0 && | |
aca5d083 HS |
224 | at91_get_gpio_value(AT91_PIN_PA29) == 0) { |
225 | smartweb_nand_hw_init(); | |
3b5df50e HS |
226 | nand_init(); |
227 | spl_nand_erase_one(0, 0); | |
228 | } | |
229 | } | |
230 | ||
231 | #define SDRAM_BASE_CONF (AT91_SDRAMC_NC_9 | AT91_SDRAMC_NR_13 \ | |
232 | | AT91_SDRAMC_CAS_2 \ | |
233 | | AT91_SDRAMC_NB_4 | AT91_SDRAMC_DBW_32 \ | |
234 | | AT91_SDRAMC_TWR_VAL(2) | AT91_SDRAMC_TRC_VAL(7) \ | |
235 | | AT91_SDRAMC_TRP_VAL(2) | AT91_SDRAMC_TRCD_VAL(2) \ | |
236 | | AT91_SDRAMC_TRAS_VAL(5) | AT91_SDRAMC_TXSR_VAL(8)) | |
237 | ||
238 | void mem_init(void) | |
239 | { | |
240 | struct at91_matrix *ma = (struct at91_matrix *)ATMEL_BASE_MATRIX; | |
241 | struct at91_port *port = (struct at91_port *)ATMEL_BASE_PIOC; | |
242 | struct sdramc_reg setting; | |
243 | ||
244 | setting.cr = SDRAM_BASE_CONF; | |
245 | setting.mdr = AT91_SDRAMC_MD_SDRAM; | |
246 | setting.tr = (CONFIG_SYS_MASTER_CLOCK * 7) / 1000000; | |
247 | ||
248 | /* | |
249 | * I write here directly in this register, because this | |
250 | * approach is smaller than calling at91_set_a_periph() in a | |
251 | * for loop. This saved me 96 bytes. | |
252 | */ | |
253 | writel(0xffff0000, &port->pdr); | |
254 | ||
255 | writel(readl(&ma->ebicsa) | AT91_MATRIX_CS1A_SDRAMC, &ma->ebicsa); | |
256 | sdramc_initialize(ATMEL_BASE_CS1, &setting); | |
257 | } | |
258 | #endif | |
13ee7890 HS |
259 | |
260 | static struct atmel_serial_platdata at91sam9260_serial_plat = { | |
261 | .base_addr = ATMEL_BASE_DBGU, | |
262 | }; | |
263 | ||
264 | U_BOOT_DEVICE(at91sam9260_serial) = { | |
265 | .name = "serial_atmel", | |
266 | .platdata = &at91sam9260_serial_plat, | |
267 | }; |