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Bryan Brattlofdaa39a62022-11-03 19:13:55 -05001// SPDX-License-Identifier: GPL-2.0
2/*
3 * AM62A7: SoC specific initialization
4 *
5 * Copyright (C) 2022 Texas Instruments Incorporated - https://www.ti.com/
6 */
7
8#include <spl.h>
9#include <asm/io.h>
10#include <asm/arch/hardware.h>
Andrew Davisf1799852023-04-06 11:38:16 -050011#include "sysfw-loader.h"
Bryan Brattlofdaa39a62022-11-03 19:13:55 -050012#include "common.h"
13#include <dm.h>
14#include <dm/uclass-internal.h>
15#include <dm/pinctrl.h>
16
Vignesh Raghavendraad998d22023-07-02 14:46:54 +053017struct fwl_data cbass_main_fwls[] = {
18 { "FSS_DAT_REG3", 7, 8 },
19};
20
Bryan Brattlofdaa39a62022-11-03 19:13:55 -050021/*
22 * This uninitialized global variable would normal end up in the .bss section,
23 * but the .bss is cleared between writing and reading this variable, so move
24 * it to the .data section.
25 */
26u32 bootindex __section(".data");
27static struct rom_extended_boot_data bootdata __section(".data");
28
29static void store_boot_info_from_rom(void)
30{
31 bootindex = *(u32 *)(CONFIG_SYS_K3_BOOT_PARAM_TABLE_INDEX);
Bryan Brattlofcdea1212022-12-23 19:15:23 -060032
33 if (IS_ENABLED(CONFIG_CPU_V7R)) {
Andrew Davis15ca72a2024-04-26 10:44:23 -050034 memcpy(&bootdata, (uintptr_t *)ROM_EXTENDED_BOOT_DATA_INFO,
Bryan Brattlofcdea1212022-12-23 19:15:23 -060035 sizeof(struct rom_extended_boot_data));
36 }
Bryan Brattlofdaa39a62022-11-03 19:13:55 -050037}
38
39static void ctrl_mmr_unlock(void)
40{
41 /* Unlock all WKUP_CTRL_MMR0 module registers */
42 mmr_unlock(WKUP_CTRL_MMR0_BASE, 0);
43 mmr_unlock(WKUP_CTRL_MMR0_BASE, 1);
44 mmr_unlock(WKUP_CTRL_MMR0_BASE, 2);
45 mmr_unlock(WKUP_CTRL_MMR0_BASE, 3);
46 mmr_unlock(WKUP_CTRL_MMR0_BASE, 4);
47 mmr_unlock(WKUP_CTRL_MMR0_BASE, 5);
48 mmr_unlock(WKUP_CTRL_MMR0_BASE, 6);
49 mmr_unlock(WKUP_CTRL_MMR0_BASE, 7);
50
51 /* Unlock all CTRL_MMR0 module registers */
52 mmr_unlock(CTRL_MMR0_BASE, 0);
53 mmr_unlock(CTRL_MMR0_BASE, 1);
54 mmr_unlock(CTRL_MMR0_BASE, 2);
55 mmr_unlock(CTRL_MMR0_BASE, 4);
56 mmr_unlock(CTRL_MMR0_BASE, 5);
57 mmr_unlock(CTRL_MMR0_BASE, 6);
58
59 /* Unlock all MCU_CTRL_MMR0 module registers */
60 mmr_unlock(MCU_CTRL_MMR0_BASE, 0);
61 mmr_unlock(MCU_CTRL_MMR0_BASE, 1);
62 mmr_unlock(MCU_CTRL_MMR0_BASE, 2);
63 mmr_unlock(MCU_CTRL_MMR0_BASE, 3);
64 mmr_unlock(MCU_CTRL_MMR0_BASE, 4);
65 mmr_unlock(MCU_CTRL_MMR0_BASE, 6);
66
67 /* Unlock PADCFG_CTRL_MMR padconf registers */
68 mmr_unlock(PADCFG_MMR0_BASE, 1);
69 mmr_unlock(PADCFG_MMR1_BASE, 1);
70}
71
72void board_init_f(ulong dummy)
73{
74 struct udevice *dev;
75 int ret;
76
77#if defined(CONFIG_CPU_V7R)
78 setup_k3_mpu_regions();
79#endif
80
81 /*
82 * Cannot delay this further as there is a chance that
83 * K3_BOOT_PARAM_TABLE_INDEX can be over written by SPL MALLOC section.
84 */
85 store_boot_info_from_rom();
86
87 ctrl_mmr_unlock();
88
89 /* Init DM early */
90 spl_early_init();
91
92 /*
93 * Process pinctrl for the serial0 and serial3, aka WKUP_UART0 and
94 * MAIN_UART1 modules and continue regardless of the result of pinctrl.
95 * Do this without probing the device, but instead by searching the
96 * device that would request the given sequence number if probed. The
97 * UARTs will be used by the DM firmware and TIFS firmware images
98 * respectively and the firmware depend on SPL to initialize the pin
99 * settings.
100 */
101 ret = uclass_find_device_by_seq(UCLASS_SERIAL, 0, &dev);
102 if (!ret)
103 pinctrl_select_state(dev, "default");
104
105 ret = uclass_find_device_by_seq(UCLASS_SERIAL, 3, &dev);
106 if (!ret)
107 pinctrl_select_state(dev, "default");
108
109#ifdef CONFIG_K3_EARLY_CONS
110 /*
111 * Allow establishing an early console as required for example when
112 * doing a UART-based boot. Note that this console may not "survive"
113 * through a SYSFW PM-init step and will need a re-init in some way
114 * due to changing module clock frequencies.
115 */
116 early_console_init();
117#endif
118
119#if defined(CONFIG_K3_LOAD_SYSFW)
120 /*
121 * Configure and start up system controller firmware. Provide
122 * the U-Boot console init function to the SYSFW post-PM configuration
123 * callback hook, effectively switching on (or over) the console
124 * output.
125 */
126 ret = is_rom_loaded_sysfw(&bootdata);
127 if (!ret)
128 panic("ROM has not loaded TIFS firmware\n");
129
130 k3_sysfw_loader(true, NULL, NULL);
Andrew Davis36a01bdf2024-02-01 18:24:46 -0600131
132 /* Disable ROM configured firewalls right after loading sysfw */
133 remove_fwl_configs(cbass_main_fwls, ARRAY_SIZE(cbass_main_fwls));
Bryan Brattlofdaa39a62022-11-03 19:13:55 -0500134#endif
135
Bryan Brattlofcdea1212022-12-23 19:15:23 -0600136#if defined(CONFIG_CPU_V7R)
137 /*
138 * Relocate boot information to OCRAM (after TIFS has opend this
139 * region for us) so the next bootloader stages can keep access to
140 * primary vs backup bootmodes.
141 */
142 writel(bootindex, K3_BOOT_PARAM_TABLE_INDEX_OCRAM);
143#endif
144
Bryan Brattlofdaa39a62022-11-03 19:13:55 -0500145 /*
146 * Force probe of clk_k3 driver here to ensure basic default clock
147 * configuration is always done.
148 */
149 if (IS_ENABLED(CONFIG_SPL_CLK_K3)) {
150 ret = uclass_get_device_by_driver(UCLASS_CLK,
151 DM_DRIVER_GET(ti_clk),
152 &dev);
153 if (ret)
154 printf("Failed to initialize clk-k3!\n");
155 }
156
157 preloader_console_init();
158
159 /* Output System Firmware version info */
160 k3_sysfw_print_ver();
161
162#if defined(CONFIG_K3_AM62A_DDRSS)
163 ret = uclass_get_device(UCLASS_RAM, 0, &dev);
164 if (ret)
165 panic("DRAM init failed: %d\n", ret);
166#endif
167
Aradhya Bhatia94024e92023-04-14 12:57:25 +0530168 setup_qos();
169
Bryan Brattlofd7404d72023-07-17 18:01:33 -0500170 debug("am62a_init: %s done\n", __func__);
Bryan Brattlofdaa39a62022-11-03 19:13:55 -0500171}
172
173static u32 __get_backup_bootmedia(u32 devstat)
174{
175 u32 bkup_bootmode = (devstat & MAIN_DEVSTAT_BACKUP_BOOTMODE_MASK) >>
176 MAIN_DEVSTAT_BACKUP_BOOTMODE_SHIFT;
177 u32 bkup_bootmode_cfg =
178 (devstat & MAIN_DEVSTAT_BACKUP_BOOTMODE_CFG_MASK) >>
179 MAIN_DEVSTAT_BACKUP_BOOTMODE_CFG_SHIFT;
180
181 switch (bkup_bootmode) {
182 case BACKUP_BOOT_DEVICE_UART:
183 return BOOT_DEVICE_UART;
184
185 case BACKUP_BOOT_DEVICE_USB:
186 return BOOT_DEVICE_USB;
187
188 case BACKUP_BOOT_DEVICE_ETHERNET:
189 return BOOT_DEVICE_ETHERNET;
190
191 case BACKUP_BOOT_DEVICE_MMC:
192 if (bkup_bootmode_cfg)
193 return BOOT_DEVICE_MMC2;
194 return BOOT_DEVICE_MMC1;
195
196 case BACKUP_BOOT_DEVICE_SPI:
197 return BOOT_DEVICE_SPI;
198
199 case BACKUP_BOOT_DEVICE_I2C:
200 return BOOT_DEVICE_I2C;
201
202 case BACKUP_BOOT_DEVICE_DFU:
203 if (bkup_bootmode_cfg & MAIN_DEVSTAT_BACKUP_USB_MODE_MASK)
204 return BOOT_DEVICE_USB;
205 return BOOT_DEVICE_DFU;
206 };
207
208 return BOOT_DEVICE_RAM;
209}
210
211static u32 __get_primary_bootmedia(u32 devstat)
212{
213 u32 bootmode = (devstat & MAIN_DEVSTAT_PRIMARY_BOOTMODE_MASK) >>
214 MAIN_DEVSTAT_PRIMARY_BOOTMODE_SHIFT;
215 u32 bootmode_cfg = (devstat & MAIN_DEVSTAT_PRIMARY_BOOTMODE_CFG_MASK) >>
216 MAIN_DEVSTAT_PRIMARY_BOOTMODE_CFG_SHIFT;
217
218 switch (bootmode) {
219 case BOOT_DEVICE_OSPI:
220 fallthrough;
221 case BOOT_DEVICE_QSPI:
222 fallthrough;
223 case BOOT_DEVICE_XSPI:
224 fallthrough;
225 case BOOT_DEVICE_SPI:
226 return BOOT_DEVICE_SPI;
227
228 case BOOT_DEVICE_ETHERNET_RGMII:
229 fallthrough;
230 case BOOT_DEVICE_ETHERNET_RMII:
231 return BOOT_DEVICE_ETHERNET;
232
233 case BOOT_DEVICE_EMMC:
234 return BOOT_DEVICE_MMC1;
235
236 case BOOT_DEVICE_SPI_NAND:
237 return BOOT_DEVICE_SPINAND;
238
239 case BOOT_DEVICE_MMC:
240 if ((bootmode_cfg & MAIN_DEVSTAT_PRIMARY_MMC_PORT_MASK) >>
241 MAIN_DEVSTAT_PRIMARY_MMC_PORT_SHIFT)
242 return BOOT_DEVICE_MMC2;
243 return BOOT_DEVICE_MMC1;
244
245 case BOOT_DEVICE_DFU:
246 if ((bootmode_cfg & MAIN_DEVSTAT_PRIMARY_USB_MODE_MASK) >>
247 MAIN_DEVSTAT_PRIMARY_USB_MODE_SHIFT)
248 return BOOT_DEVICE_USB;
249 return BOOT_DEVICE_DFU;
250
251 case BOOT_DEVICE_NOBOOT:
252 return BOOT_DEVICE_RAM;
253 }
254
255 return bootmode;
256}
257
258u32 spl_boot_device(void)
259{
260 u32 devstat = readl(CTRLMMR_MAIN_DEVSTAT);
261 u32 bootmedia;
262
263 if (bootindex == K3_PRIMARY_BOOTMODE)
264 bootmedia = __get_primary_bootmedia(devstat);
265 else
266 bootmedia = __get_backup_bootmedia(devstat);
267
Bryan Brattlofd7404d72023-07-17 18:01:33 -0500268 debug("am62a_init: %s: devstat = 0x%x bootmedia = 0x%x bootindex = %d\n",
Bryan Brattlofdaa39a62022-11-03 19:13:55 -0500269 __func__, devstat, bootmedia, bootindex);
270 return bootmedia;
271}