1 // SPDX-License-Identifier: GPL-2.0+
3 * (C) Copyright 2010-2015
4 * NVIDIA Corporation <www.nvidia.com>
14 #if IS_ENABLED(CONFIG_TEGRA_CLKRST)
15 #include <asm/arch/clock.h>
17 #if IS_ENABLED(CONFIG_TEGRA_PINCTRL)
18 #include <asm/arch/funcmux.h>
20 #if IS_ENABLED(CONFIG_TEGRA_MC)
21 #include <asm/arch/mc.h>
23 #include <asm/arch/tegra.h>
24 #include <asm/arch-tegra/ap.h>
25 #include <asm/arch-tegra/board.h>
26 #include <asm/arch-tegra/cboot.h>
27 #include <asm/arch-tegra/pmc.h>
28 #include <asm/arch-tegra/sys_proto.h>
29 #include <asm/arch-tegra/warmboot.h>
31 void save_boot_params_ret(void);
33 DECLARE_GLOBAL_DATA_PTR;
36 /* UARTs which we can enable */
45 static bool from_spl __attribute__ ((section(".data")));
47 #ifndef CONFIG_SPL_BUILD
48 void save_boot_params(unsigned long r0, unsigned long r1, unsigned long r2,
51 from_spl = r0 != UBOOT_NOT_LOADED_FROM_SPL;
54 * The logic for this is somewhat indirect. The purpose of the marker
55 * (UBOOT_NOT_LOADED_FROM_SPL) is in fact used to determine if U-Boot
56 * was loaded from a read-only instance of itself, which is something
57 * that can happen in secure boot setups. So basically the presence
58 * of the marker is an indication that U-Boot was loaded by one such
59 * special variant of U-Boot. Conversely, the absence of the marker
60 * indicates that this instance of U-Boot was loaded by something
61 * other than a special U-Boot. This could be SPL, but it could just
62 * as well be one of any number of other first stage bootloaders.
65 cboot_save_boot_params(r0, r1, r2, r3);
67 save_boot_params_ret();
71 bool spl_was_boot_source(void)
76 #if defined(CONFIG_TEGRA_SUPPORT_NON_SECURE)
77 #if !defined(CONFIG_TEGRA124)
78 #error tegra_cpu_is_non_secure has only been validated on Tegra124
80 bool tegra_cpu_is_non_secure(void)
83 * This register reads 0xffffffff in non-secure mode. This register
84 * only implements bits 31:20, so the lower bits will always read 0 in
85 * secure mode. Thus, the lower bits are an indicator for secure vs.
88 struct mc_ctlr *mc = (struct mc_ctlr *)NV_PA_MC_BASE;
89 uint32_t mc_s_cfg0 = readl(&mc->mc_security_cfg0);
90 return (mc_s_cfg0 & 1) == 1;
94 #if IS_ENABLED(CONFIG_TEGRA_MC)
95 /* Read the RAM size directly from the memory controller */
96 static phys_size_t query_sdram_size(void)
98 struct mc_ctlr *const mc = (struct mc_ctlr *)NV_PA_MC_BASE;
100 phys_size_t size_bytes;
102 emem_cfg = readl(&mc->mc_emem_cfg);
103 #if defined(CONFIG_TEGRA20)
104 debug("mc->mc_emem_cfg (MEM_SIZE_KB) = 0x%08x\n", emem_cfg);
105 size_bytes = get_ram_size((void *)PHYS_SDRAM_1, emem_cfg * 1024);
107 debug("mc->mc_emem_cfg (MEM_SIZE_MB) = 0x%08x\n", emem_cfg);
108 #ifndef CONFIG_PHYS_64BIT
110 * If >=4GB RAM is present, the byte RAM size won't fit into 32-bits
111 * and will wrap. Clip the reported size to the maximum that a 32-bit
112 * variable can represent (rounded to a page).
114 if (emem_cfg >= 4096) {
115 size_bytes = U32_MAX & ~(0x1000 - 1);
119 /* RAM size EMC is programmed to. */
120 size_bytes = (phys_size_t)emem_cfg * 1024 * 1024;
123 * If all RAM fits within 32-bits, it can be accessed without
124 * LPAE, so go test the RAM size. Otherwise, we can't access
125 * all the RAM, and get_ram_size() would get confused, so
126 * avoid using it. There's no reason we should need this
127 * validation step anyway.
129 if (emem_cfg <= (0 - PHYS_SDRAM_1) / (1024 * 1024))
130 size_bytes = get_ram_size((void *)PHYS_SDRAM_1,
136 #if defined(CONFIG_TEGRA30) || defined(CONFIG_TEGRA114)
137 /* External memory limited to 2047 MB due to IROM/HI-VEC */
138 if (size_bytes == SZ_2G)
150 /* try to initialize DRAM from cboot DTB first */
151 err = cboot_dram_init();
155 #if IS_ENABLED(CONFIG_TEGRA_MC)
156 /* We do not initialise DRAM here. We just query the size */
157 gd->ram_size = query_sdram_size();
163 #if IS_ENABLED(CONFIG_TEGRA_PINCTRL)
164 static int uart_configs[] = {
165 #if defined(CONFIG_TEGRA20)
166 #if defined(CONFIG_TEGRA_UARTA_UAA_UAB)
167 FUNCMUX_UART1_UAA_UAB,
168 #elif defined(CONFIG_TEGRA_UARTA_GPU)
170 #elif defined(CONFIG_TEGRA_UARTA_SDIO1)
173 FUNCMUX_UART1_IRRX_IRTX,
179 #elif defined(CONFIG_TEGRA30)
180 FUNCMUX_UART1_ULPI, /* UARTA */
185 #elif defined(CONFIG_TEGRA114)
189 FUNCMUX_UART4_GMI, /* UARTD */
191 #elif defined(CONFIG_TEGRA124)
192 FUNCMUX_UART1_KBC, /* UARTA */
195 FUNCMUX_UART4_GPIO, /* UARTD */
198 FUNCMUX_UART1_UART1, /* UARTA */
201 FUNCMUX_UART4_UART4, /* UARTD */
207 * Set up the specified uarts
209 * @param uarts_ids Mask containing UARTs to init (UARTx)
211 static void setup_uarts(int uart_ids)
213 static enum periph_id id_for_uart[] = {
222 for (i = 0; i < UART_COUNT; i++) {
223 if (uart_ids & (1 << i)) {
224 enum periph_id id = id_for_uart[i];
226 funcmux_select(id, uart_configs[i]);
227 clock_ll_start_uart(id);
233 void board_init_uart_f(void)
235 #if IS_ENABLED(CONFIG_TEGRA_PINCTRL)
236 int uart_ids = 0; /* bit mask of which UART ids to enable */
238 #ifdef CONFIG_TEGRA_ENABLE_UARTA
241 #ifdef CONFIG_TEGRA_ENABLE_UARTB
244 #ifdef CONFIG_TEGRA_ENABLE_UARTC
247 #ifdef CONFIG_TEGRA_ENABLE_UARTD
250 #ifdef CONFIG_TEGRA_ENABLE_UARTE
253 setup_uarts(uart_ids);
257 #if !CONFIG_IS_ENABLED(OF_CONTROL)
258 static struct ns16550_platdata ns16550_com1_pdata = {
259 .base = CONFIG_SYS_NS16550_COM1,
261 .clock = CONFIG_SYS_NS16550_CLK,
262 .fcr = UART_FCR_DEFVAL,
265 U_BOOT_DEVICE(ns16550_com1) = {
266 "ns16550_serial", &ns16550_com1_pdata
270 #if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF) && !defined(CONFIG_ARM64)
271 void enable_caches(void)
273 /* Enable D-cache. I-cache is already enabled in start.S */