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Heiko Schocher03efcb02013-08-05 16:00:38 +02001/*
2 * (C) Heiko Schocher, DENX Software Engineering, hs@denx.de.
3 * Based on:
4 * U-Boot:board/davinci/da8xxevm/da850evm.c
5 *
6 * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
7 *
8 * Based on da830evm.c. Original Copyrights follow:
9 *
10 * Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com>
11 * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
12 *
13 * SPDX-License-Identifier: GPL-2.0+
14 */
15
16#include <common.h>
17#include <i2c.h>
18#include <net.h>
19#include <netdev.h>
20#include <spi.h>
21#include <spi_flash.h>
22#include <asm/arch/hardware.h>
Khoronzhuk, Ivan3e01ed02014-06-07 04:22:52 +030023#include <asm/ti-common/davinci_nand.h>
Heiko Schocher03efcb02013-08-05 16:00:38 +020024#include <asm/arch/emac_defs.h>
25#include <asm/arch/pinmux_defs.h>
26#include <asm/io.h>
27#include <asm/arch/davinci_misc.h>
Masahiro Yamada1221ce42016-09-21 11:28:55 +090028#include <linux/errno.h>
Heiko Schocher03efcb02013-08-05 16:00:38 +020029#include <asm/gpio.h>
30#include <hwconfig.h>
31#include <bootstage.h>
Simon Glassc62db352017-05-31 19:47:48 -060032#include <asm/mach-types.h>
Heiko Schocher03efcb02013-08-05 16:00:38 +020033
34DECLARE_GLOBAL_DATA_PTR;
35
36#ifdef CONFIG_DRIVER_TI_EMAC
37#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII
38#define HAS_RMII 1
39#else
40#define HAS_RMII 0
41#endif
42#endif /* CONFIG_DRIVER_TI_EMAC */
43
44void dsp_lpsc_on(unsigned domain, unsigned int id)
45{
46 dv_reg_p mdstat, mdctl, ptstat, ptcmd;
47 struct davinci_psc_regs *psc_regs;
48
49 psc_regs = davinci_psc0_regs;
50 mdstat = &psc_regs->psc0.mdstat[id];
51 mdctl = &psc_regs->psc0.mdctl[id];
52 ptstat = &psc_regs->ptstat;
53 ptcmd = &psc_regs->ptcmd;
54
55 while (*ptstat & (0x1 << domain))
56 ;
57
58 if ((*mdstat & 0x1f) == 0x03)
59 return; /* Already on and enabled */
60
61 *mdctl |= 0x03;
62
63 *ptcmd = 0x1 << domain;
64
65 while (*ptstat & (0x1 << domain))
66 ;
67 while ((*mdstat & 0x1f) != 0x03)
68 ; /* Probably an overkill... */
69}
70
71static void dspwake(void)
72{
73 unsigned *resetvect = (unsigned *)DAVINCI_L3CBARAM_BASE;
74 u32 val;
75
76 /* if the device is ARM only, return */
77 if ((readl(CHIP_REV_ID_REG) & 0x3f) == 0x10)
78 return;
79
80 if (hwconfig_subarg_cmp_f("dsp", "wake", "no", NULL))
81 return;
82
83 *resetvect++ = 0x1E000; /* DSP Idle */
84 /* clear out the next 10 words as NOP */
85 memset(resetvect, 0, sizeof(unsigned) * 10);
86
87 /* setup the DSP reset vector */
88 writel(DAVINCI_L3CBARAM_BASE, HOST1CFG);
89
90 dsp_lpsc_on(1, DAVINCI_LPSC_GEM);
91 val = readl(PSC0_MDCTL + (15 * 4));
92 val |= 0x100;
93 writel(val, (PSC0_MDCTL + (15 * 4)));
94}
95
96int misc_init_r(void)
97{
98 dspwake();
99 return 0;
100}
101
102static const struct pinmux_config gpio_pins[] = {
103 /* GP7[14] selects bootmode*/
104 { pinmux(16), 8, 3 }, /* GP7[14] */
105};
106
107const struct pinmux_resource pinmuxes[] = {
108#ifdef CONFIG_DRIVER_TI_EMAC
109 PINMUX_ITEM(emac_pins_mdio),
110#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII
111 PINMUX_ITEM(emac_pins_rmii),
112#else
113 PINMUX_ITEM(emac_pins_mii),
114#endif
115#endif
116 PINMUX_ITEM(uart2_pins_txrx),
117 PINMUX_ITEM(uart2_pins_rtscts),
118 PINMUX_ITEM(uart0_pins_txrx),
119 PINMUX_ITEM(uart0_pins_rtscts),
120#ifdef CONFIG_NAND_DAVINCI
121 PINMUX_ITEM(emifa_pins_cs3),
122 PINMUX_ITEM(emifa_pins_nand),
123#endif
124 PINMUX_ITEM(gpio_pins),
125};
126
127const int pinmuxes_size = ARRAY_SIZE(pinmuxes);
128
129const struct lpsc_resource lpsc[] = {
130 { DAVINCI_LPSC_AEMIF }, /* NAND, NOR */
131 { DAVINCI_LPSC_EMAC }, /* image download */
132 { DAVINCI_LPSC_UART2 }, /* console */
133 { DAVINCI_LPSC_UART0 }, /* console */
134 { DAVINCI_LPSC_GPIO },
135};
136
137const int lpsc_size = ARRAY_SIZE(lpsc);
138
139#ifndef CONFIG_DA850_EVM_MAX_CPU_CLK
140#define CONFIG_DA850_EVM_MAX_CPU_CLK 300000000
141#endif
142
143#define REV_AM18X_EVM 0x100
144
145/*
146 * get_board_rev() - setup to pass kernel board revision information
147 * Returns:
148 * bit[0-3] Maximum cpu clock rate supported by onboard SoC
149 * 0000b - 300 MHz
150 * 0001b - 372 MHz
151 * 0010b - 408 MHz
152 * 0011b - 456 MHz
153 */
154u32 get_board_rev(void)
155{
156 char *s;
157 u32 maxcpuclk = CONFIG_DA850_EVM_MAX_CPU_CLK;
158 u32 rev = 0;
159
Simon Glass00caae62017-08-03 12:22:12 -0600160 s = env_get("maxcpuclk");
Heiko Schocher03efcb02013-08-05 16:00:38 +0200161 if (s)
162 maxcpuclk = simple_strtoul(s, NULL, 10);
163
164 if (maxcpuclk >= 456000000)
165 rev = 3;
166 else if (maxcpuclk >= 408000000)
167 rev = 2;
168 else if (maxcpuclk >= 372000000)
169 rev = 1;
170#ifdef CONFIG_DA850_AM18X_EVM
171 rev |= REV_AM18X_EVM;
172#endif
173 return rev;
174}
175
176int board_early_init_f(void)
177{
178 /*
179 * Power on required peripherals
180 * ARM does not have access by default to PSC0 and PSC1
181 * assuming here that the DSP bootloader has set the IOPU
182 * such that PSC access is available to ARM
183 */
184 if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc)))
185 return 1;
186
187 return 0;
188}
189
190int board_init(void)
191{
Heiko Schocher03efcb02013-08-05 16:00:38 +0200192 irq_init();
Heiko Schocher03efcb02013-08-05 16:00:38 +0200193
194 /* arch number of the board */
195 gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DA850_EVM;
196
197 /* address of boot parameters */
198 gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
199
200 /* setup the SUSPSRC for ARM to control emulation suspend */
201 writel(readl(&davinci_syscfg_regs->suspsrc) &
202 ~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C |
203 DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
204 DAVINCI_SYSCFG_SUSPSRC_UART0),
205 &davinci_syscfg_regs->suspsrc);
206
207 /* configure pinmux settings */
208 if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes)))
209 return 1;
210
211#ifdef CONFIG_DRIVER_TI_EMAC
212 davinci_emac_mii_mode_sel(HAS_RMII);
213#endif /* CONFIG_DRIVER_TI_EMAC */
214
215 /* enable the console UART */
216 writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST |
217 DAVINCI_UART_PWREMU_MGMT_UTRST),
218#if (CONFIG_SYS_NS16550_COM1 == DAVINCI_UART0_BASE)
219 &davinci_uart0_ctrl_regs->pwremu_mgmt);
220#else
221 &davinci_uart2_ctrl_regs->pwremu_mgmt);
222#endif
223 return 0;
224}
225
226#ifdef CONFIG_DRIVER_TI_EMAC
227/*
228 * Initializes on-board ethernet controllers.
229 */
230int board_eth_init(bd_t *bis)
231{
232 if (!davinci_emac_initialize()) {
233 printf("Error: Ethernet init failed!\n");
234 return -1;
235 }
236
237 return 0;
238}
239#endif /* CONFIG_DRIVER_TI_EMAC */
240
241static int init_led(int gpio, char *name, int val)
242{
243 int ret;
244
245 ret = gpio_request(gpio, name);
246 if (ret)
247 return -1;
248 ret = gpio_direction_output(gpio, val);
249 if (ret)
250 return -1;
251
252 return gpio;
253}
254
255#define LED_ON 0
256#define LED_OFF 1
257
258#if !defined(CONFIG_SPL_BUILD)
259#ifdef CONFIG_SHOW_BOOT_PROGRESS
260void show_boot_progress(int status)
261{
262 static int red;
263 static int green;
264
265 if (red == 0)
Heiko Schocher660a2e62013-09-06 05:21:24 +0200266 red = init_led(CONFIG_IPAM390_GPIO_LED_RED, "red", LED_ON);
Heiko Schocher03efcb02013-08-05 16:00:38 +0200267 if (red != CONFIG_IPAM390_GPIO_LED_RED)
268 return;
269 if (green == 0)
270 green = init_led(CONFIG_IPAM390_GPIO_LED_GREEN, "green",
271 LED_OFF);
272 if (green != CONFIG_IPAM390_GPIO_LED_GREEN)
273 return;
274
275 switch (status) {
276 case BOOTSTAGE_ID_RUN_OS:
277 /*
278 * set normal state
Heiko Schocher660a2e62013-09-06 05:21:24 +0200279 * LED Red : on
Heiko Schocher03efcb02013-08-05 16:00:38 +0200280 * LED green: off
281 */
Heiko Schocher660a2e62013-09-06 05:21:24 +0200282 gpio_set_value(red, LED_ON);
Heiko Schocher03efcb02013-08-05 16:00:38 +0200283 gpio_set_value(green, LED_OFF);
284 break;
285 case BOOTSTAGE_ID_MAIN_LOOP:
286 /*
287 * U-Boot operation
288 * LED Red : on
289 * LED green: on
290 */
291 gpio_set_value(red, LED_ON);
292 gpio_set_value(green, LED_ON);
293 break;
294 }
295}
296#endif
297#endif
298
299#ifdef CONFIG_SPL_OS_BOOT
300int spl_start_uboot(void)
301{
302 int ret;
303 int bootmode = 0;
304
305 /*
306 * GP7[14] selects bootmode:
307 * 1: boot linux
308 * 0: boot u-boot
309 * if error accessing gpio boot U-Boot
310 *
311 * SPL bootmode
312 * 0: boot linux
313 * 1: boot u-boot
314 */
315 ret = gpio_request(CONFIG_IPAM390_GPIO_BOOTMODE , "bootmode");
316 if (ret)
317 bootmode = 1;
318 if (!bootmode) {
319 ret = gpio_direction_input(CONFIG_IPAM390_GPIO_BOOTMODE);
320 if (ret)
321 bootmode = 1;
322 }
323 if (!bootmode)
324 ret = gpio_get_value(CONFIG_IPAM390_GPIO_BOOTMODE);
325 if (!bootmode)
326 if (ret == 0)
327 bootmode = 1;
Heiko Schocher660a2e62013-09-06 05:21:24 +0200328 /*
329 * LED red : on
330 * LED green: off
331 */
332 init_led(CONFIG_IPAM390_GPIO_LED_RED, "red", LED_ON);
333 init_led(CONFIG_IPAM390_GPIO_LED_GREEN, "green", LED_OFF);
Heiko Schocher03efcb02013-08-05 16:00:38 +0200334 return bootmode;
335}
336#endif