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cba69eee IC |
1 | /* |
2 | * (C) Copyright 2012 Henrik Nordstrom <henrik@henriknordstrom.net> | |
3 | * | |
4 | * (C) Copyright 2007-2011 | |
5 | * Allwinner Technology Co., Ltd. <www.allwinnertech.com> | |
6 | * Tom Cubie <tangliang@allwinnertech.com> | |
7 | * | |
8 | * Some init for sunxi platform. | |
9 | * | |
10 | * SPDX-License-Identifier: GPL-2.0+ | |
11 | */ | |
12 | ||
13 | #include <common.h> | |
a151403f | 14 | #include <mmc.h> |
6620377e | 15 | #include <i2c.h> |
cba69eee IC |
16 | #include <serial.h> |
17 | #ifdef CONFIG_SPL_BUILD | |
18 | #include <spl.h> | |
19 | #endif | |
20 | #include <asm/gpio.h> | |
21 | #include <asm/io.h> | |
22 | #include <asm/arch/clock.h> | |
23 | #include <asm/arch/gpio.h> | |
af654d14 | 24 | #include <asm/arch/spl.h> |
cba69eee IC |
25 | #include <asm/arch/sys_proto.h> |
26 | #include <asm/arch/timer.h> | |
92369844 | 27 | #include <asm/arch/tzpc.h> |
a151403f | 28 | #include <asm/arch/mmc.h> |
cba69eee | 29 | |
799aff38 IC |
30 | #include <linux/compiler.h> |
31 | ||
942cb0b6 SG |
32 | struct fel_stash { |
33 | uint32_t sp; | |
34 | uint32_t lr; | |
840fe95c SS |
35 | uint32_t cpsr; |
36 | uint32_t sctlr; | |
37 | uint32_t vbar; | |
38 | uint32_t cr; | |
942cb0b6 SG |
39 | }; |
40 | ||
41 | struct fel_stash fel_stash __attribute__((section(".data"))); | |
42 | ||
f630974c | 43 | static int gpio_init(void) |
cba69eee | 44 | { |
ff2b47f6 | 45 | #if CONFIG_CONS_INDEX == 1 && defined(CONFIG_UART0_PORT_F) |
ed41e62f | 46 | #if defined(CONFIG_MACH_SUN4I) || defined(CONFIG_MACH_SUN7I) |
ff2b47f6 CYT |
47 | /* disable GPB22,23 as uart0 tx,rx to avoid conflict */ |
48 | sunxi_gpio_set_cfgpin(SUNXI_GPB(22), SUNXI_GPIO_INPUT); | |
49 | sunxi_gpio_set_cfgpin(SUNXI_GPB(23), SUNXI_GPIO_INPUT); | |
50 | #endif | |
487b3277 | 51 | #if defined(CONFIG_MACH_SUN8I) |
6ad8c743 CYT |
52 | sunxi_gpio_set_cfgpin(SUNXI_GPF(2), SUN8I_GPF_UART0); |
53 | sunxi_gpio_set_cfgpin(SUNXI_GPF(4), SUN8I_GPF_UART0); | |
487b3277 | 54 | #else |
6ad8c743 CYT |
55 | sunxi_gpio_set_cfgpin(SUNXI_GPF(2), SUNXI_GPF_UART0); |
56 | sunxi_gpio_set_cfgpin(SUNXI_GPF(4), SUNXI_GPF_UART0); | |
487b3277 | 57 | #endif |
ff2b47f6 | 58 | sunxi_gpio_set_pull(SUNXI_GPF(4), 1); |
ed41e62f | 59 | #elif CONFIG_CONS_INDEX == 1 && (defined(CONFIG_MACH_SUN4I) || defined(CONFIG_MACH_SUN7I)) |
487b3277 PK |
60 | sunxi_gpio_set_cfgpin(SUNXI_GPB(22), SUN4I_GPB_UART0); |
61 | sunxi_gpio_set_cfgpin(SUNXI_GPB(23), SUN4I_GPB_UART0); | |
ea520947 | 62 | sunxi_gpio_set_pull(SUNXI_GPB(23), SUNXI_GPIO_PULL_UP); |
ed41e62f | 63 | #elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN5I) |
487b3277 PK |
64 | sunxi_gpio_set_cfgpin(SUNXI_GPB(19), SUN5I_GPB_UART0); |
65 | sunxi_gpio_set_cfgpin(SUNXI_GPB(20), SUN5I_GPB_UART0); | |
ea520947 | 66 | sunxi_gpio_set_pull(SUNXI_GPB(20), SUNXI_GPIO_PULL_UP); |
ed41e62f | 67 | #elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN6I) |
487b3277 PK |
68 | sunxi_gpio_set_cfgpin(SUNXI_GPH(20), SUN6I_GPH_UART0); |
69 | sunxi_gpio_set_cfgpin(SUNXI_GPH(21), SUN6I_GPH_UART0); | |
77115397 | 70 | sunxi_gpio_set_pull(SUNXI_GPH(21), SUNXI_GPIO_PULL_UP); |
e506889c CYT |
71 | #elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN8I_A33) |
72 | sunxi_gpio_set_cfgpin(SUNXI_GPB(0), SUN8I_A33_GPB_UART0); | |
73 | sunxi_gpio_set_cfgpin(SUNXI_GPB(1), SUN8I_A33_GPB_UART0); | |
74 | sunxi_gpio_set_pull(SUNXI_GPB(1), SUNXI_GPIO_PULL_UP); | |
1c27b7dc JK |
75 | #elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN8I_H3) |
76 | sunxi_gpio_set_cfgpin(SUNXI_GPA(4), SUN8I_H3_GPA_UART0); | |
77 | sunxi_gpio_set_cfgpin(SUNXI_GPA(5), SUN8I_H3_GPA_UART0); | |
78 | sunxi_gpio_set_pull(SUNXI_GPA(5), SUNXI_GPIO_PULL_UP); | |
d5a3357f | 79 | #elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN8I_A83T) |
80 | sunxi_gpio_set_cfgpin(SUNXI_GPB(9), SUN8I_A83T_GPB_UART0); | |
81 | sunxi_gpio_set_cfgpin(SUNXI_GPB(10), SUN8I_A83T_GPB_UART0); | |
82 | sunxi_gpio_set_pull(SUNXI_GPB(10), SUNXI_GPIO_PULL_UP); | |
1871a8ca HG |
83 | #elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN9I) |
84 | sunxi_gpio_set_cfgpin(SUNXI_GPH(12), SUN9I_GPH_UART0); | |
85 | sunxi_gpio_set_cfgpin(SUNXI_GPH(13), SUN9I_GPH_UART0); | |
86 | sunxi_gpio_set_pull(SUNXI_GPH(13), SUNXI_GPIO_PULL_UP); | |
ed41e62f | 87 | #elif CONFIG_CONS_INDEX == 2 && defined(CONFIG_MACH_SUN5I) |
487b3277 PK |
88 | sunxi_gpio_set_cfgpin(SUNXI_GPG(3), SUN5I_GPG_UART1); |
89 | sunxi_gpio_set_cfgpin(SUNXI_GPG(4), SUN5I_GPG_UART1); | |
ea520947 | 90 | sunxi_gpio_set_pull(SUNXI_GPG(4), SUNXI_GPIO_PULL_UP); |
5cd83b11 LI |
91 | #elif CONFIG_CONS_INDEX == 3 && defined(CONFIG_MACH_SUN8I) |
92 | sunxi_gpio_set_cfgpin(SUNXI_GPB(0), SUN8I_GPB_UART2); | |
93 | sunxi_gpio_set_cfgpin(SUNXI_GPB(1), SUN8I_GPB_UART2); | |
94 | sunxi_gpio_set_pull(SUNXI_GPB(1), SUNXI_GPIO_PULL_UP); | |
ed41e62f | 95 | #elif CONFIG_CONS_INDEX == 5 && defined(CONFIG_MACH_SUN8I) |
487b3277 PK |
96 | sunxi_gpio_set_cfgpin(SUNXI_GPL(2), SUN8I_GPL_R_UART); |
97 | sunxi_gpio_set_cfgpin(SUNXI_GPL(3), SUN8I_GPL_R_UART); | |
c757a50b | 98 | sunxi_gpio_set_pull(SUNXI_GPL(3), SUNXI_GPIO_PULL_UP); |
f84269c5 HG |
99 | #else |
100 | #error Unsupported console port number. Please fix pin mux settings in board.c | |
101 | #endif | |
cba69eee IC |
102 | |
103 | return 0; | |
104 | } | |
105 | ||
36afd451 | 106 | int spl_board_load_image(void) |
942cb0b6 SG |
107 | { |
108 | debug("Returning to FEL sp=%x, lr=%x\n", fel_stash.sp, fel_stash.lr); | |
109 | return_to_fel(fel_stash.sp, fel_stash.lr); | |
36afd451 NK |
110 | |
111 | return 0; | |
942cb0b6 SG |
112 | } |
113 | ||
b56f6e2b | 114 | void s_init(void) |
f630974c | 115 | { |
5e6bacdb | 116 | #if defined CONFIG_MACH_SUN6I || defined CONFIG_MACH_SUN8I_A23 |
f630974c SG |
117 | /* Magic (undocmented) value taken from boot0, without this DRAM |
118 | * access gets messed up (seems cache related) */ | |
119 | setbits_le32(SUNXI_SRAMC_BASE + 0x44, 0x1800); | |
120 | #endif | |
92bcc6cb HG |
121 | #if defined CONFIG_MACH_SUN6I || \ |
122 | defined CONFIG_MACH_SUN7I || \ | |
123 | defined CONFIG_MACH_SUN8I | |
f630974c SG |
124 | /* Enable SMP mode for CPU0, by setting bit 6 of Auxiliary Ctl reg */ |
125 | asm volatile( | |
126 | "mrc p15, 0, r0, c1, c0, 1\n" | |
127 | "orr r0, r0, #1 << 6\n" | |
128 | "mcr p15, 0, r0, c1, c0, 1\n"); | |
129 | #endif | |
5823664f CYT |
130 | #if defined CONFIG_MACH_SUN6I || defined CONFIG_MACH_SUN8I_H3 |
131 | /* Enable non-secure access to some peripherals */ | |
92369844 CYT |
132 | tzpc_init(); |
133 | #endif | |
f630974c SG |
134 | |
135 | clock_init(); | |
136 | timer_init(); | |
137 | gpio_init(); | |
138 | i2c_init_board(); | |
b56f6e2b | 139 | } |
f630974c | 140 | |
b56f6e2b | 141 | #ifdef CONFIG_SPL_BUILD |
a151403f DK |
142 | DECLARE_GLOBAL_DATA_PTR; |
143 | ||
b56f6e2b HG |
144 | /* The sunxi internal brom will try to loader external bootloader |
145 | * from mmc0, nand flash, mmc2. | |
b56f6e2b HG |
146 | */ |
147 | u32 spl_boot_device(void) | |
148 | { | |
f7d6b3cc | 149 | __maybe_unused struct mmc *mmc0, *mmc1; |
840fe95c | 150 | /* |
a151403f DK |
151 | * When booting from the SD card or NAND memory, the "eGON.BT0" |
152 | * signature is expected to be found in memory at the address 0x0004 | |
153 | * (see the "mksunxiboot" tool, which generates this header). | |
840fe95c SS |
154 | * |
155 | * When booting in the FEL mode over USB, this signature is patched in | |
156 | * memory and replaced with something else by the 'fel' tool. This other | |
157 | * signature is selected in such a way, that it can't be present in a | |
158 | * valid bootable SD card image (because the BROM would refuse to | |
159 | * execute the SPL in this case). | |
160 | * | |
a151403f DK |
161 | * This checks for the signature and if it is not found returns to |
162 | * the FEL code in the BROM to wait and receive the main u-boot | |
163 | * binary over USB. If it is found, it determines where SPL was | |
164 | * read from. | |
840fe95c | 165 | */ |
af654d14 | 166 | if (!is_boot0_magic(SPL_ADDR + 4)) /* eGON.BT0 */ |
942cb0b6 | 167 | return BOOT_DEVICE_BOARD; |
a151403f DK |
168 | |
169 | /* The BROM will try to boot from mmc0 first, so try that first. */ | |
f7d6b3cc | 170 | #ifdef CONFIG_MMC |
a151403f DK |
171 | mmc_initialize(gd->bd); |
172 | mmc0 = find_mmc_device(0); | |
173 | if (sunxi_mmc_has_egon_boot_signature(mmc0)) | |
174 | return BOOT_DEVICE_MMC1; | |
f7d6b3cc | 175 | #endif |
a151403f DK |
176 | |
177 | /* Fallback to booting NAND if enabled. */ | |
178 | if (IS_ENABLED(CONFIG_SPL_NAND_SUPPORT)) | |
179 | return BOOT_DEVICE_NAND; | |
180 | ||
f7d6b3cc | 181 | #ifdef CONFIG_MMC |
a151403f DK |
182 | if (CONFIG_MMC_SUNXI_SLOT_EXTRA == 2) { |
183 | mmc1 = find_mmc_device(1); | |
a1e56cf6 | 184 | if (sunxi_mmc_has_egon_boot_signature(mmc1)) |
a151403f | 185 | return BOOT_DEVICE_MMC2; |
a151403f | 186 | } |
f7d6b3cc | 187 | #endif |
a151403f DK |
188 | |
189 | panic("Could not determine boot source\n"); | |
190 | return -1; /* Never reached */ | |
b56f6e2b HG |
191 | } |
192 | ||
193 | /* No confirmation data available in SPL yet. Hardcode bootmode */ | |
194 | u32 spl_boot_mode(void) | |
195 | { | |
196 | return MMCSD_MODE_RAW; | |
197 | } | |
198 | ||
199 | void board_init_f(ulong dummy) | |
200 | { | |
6d0bdfdd | 201 | spl_init(); |
f630974c SG |
202 | preloader_console_init(); |
203 | ||
204 | #ifdef CONFIG_SPL_I2C_SUPPORT | |
205 | /* Needed early by sunxi_board_init if PMU is enabled */ | |
206 | i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); | |
207 | #endif | |
208 | sunxi_board_init(); | |
f630974c SG |
209 | } |
210 | #endif | |
211 | ||
cba69eee IC |
212 | void reset_cpu(ulong addr) |
213 | { | |
44d8ae5b | 214 | #ifdef CONFIG_SUNXI_GEN_SUN4I |
c7e79dec HG |
215 | static const struct sunxi_wdog *wdog = |
216 | &((struct sunxi_timer_reg *)SUNXI_TIMER_BASE)->wdog; | |
217 | ||
218 | /* Set the watchdog for its shortest interval (.5s) and wait */ | |
219 | writel(WDT_MODE_RESET_EN | WDT_MODE_EN, &wdog->mode); | |
220 | writel(WDT_CTRL_KEY | WDT_CTRL_RESTART, &wdog->ctl); | |
ae5de5a1 HG |
221 | |
222 | while (1) { | |
223 | /* sun5i sometimes gets stuck without this */ | |
224 | writel(WDT_MODE_RESET_EN | WDT_MODE_EN, &wdog->mode); | |
225 | } | |
44d8ae5b HG |
226 | #endif |
227 | #ifdef CONFIG_SUNXI_GEN_SUN6I | |
78c396a1 CYT |
228 | static const struct sunxi_wdog *wdog = |
229 | ((struct sunxi_timer_reg *)SUNXI_TIMER_BASE)->wdog; | |
230 | ||
231 | /* Set the watchdog for its shortest interval (.5s) and wait */ | |
232 | writel(WDT_CFG_RESET, &wdog->cfg); | |
233 | writel(WDT_MODE_EN, &wdog->mode); | |
234 | writel(WDT_CTRL_KEY | WDT_CTRL_RESTART, &wdog->ctl); | |
fc175434 | 235 | while (1) { } |
78c396a1 | 236 | #endif |
cba69eee IC |
237 | } |
238 | ||
cba69eee IC |
239 | #ifndef CONFIG_SYS_DCACHE_OFF |
240 | void enable_caches(void) | |
241 | { | |
242 | /* Enable D-cache. I-cache is already enabled in start.S */ | |
243 | dcache_enable(); | |
244 | } | |
245 | #endif | |
5835823d IC |
246 | |
247 | #ifdef CONFIG_CMD_NET | |
248 | /* | |
249 | * Initializes on-chip ethernet controllers. | |
250 | * to override, implement board_eth_init() | |
251 | */ | |
252 | int cpu_eth_init(bd_t *bis) | |
253 | { | |
799aff38 | 254 | __maybe_unused int rc; |
5835823d | 255 | |
fc703001 | 256 | #ifdef CONFIG_MACPWR |
8aeed956 | 257 | gpio_request(CONFIG_MACPWR, "macpwr"); |
fc703001 HG |
258 | gpio_direction_output(CONFIG_MACPWR, 1); |
259 | mdelay(200); | |
260 | #endif | |
261 | ||
5835823d IC |
262 | #ifdef CONFIG_SUNXI_GMAC |
263 | rc = sunxi_gmac_initialize(bis); | |
264 | if (rc < 0) { | |
265 | printf("sunxi: failed to initialize gmac\n"); | |
266 | return rc; | |
267 | } | |
268 | #endif | |
269 | ||
270 | return 0; | |
271 | } | |
272 | #endif |