2 * (C) Copyright 2010-2015
3 * NVIDIA Corporation <www.nvidia.com>
5 * SPDX-License-Identifier: GPL-2.0+
13 #include <asm/arch/clock.h>
14 #include <asm/arch/funcmux.h>
15 #include <asm/arch/mc.h>
16 #include <asm/arch/tegra.h>
17 #include <asm/arch-tegra/ap.h>
18 #include <asm/arch-tegra/board.h>
19 #include <asm/arch-tegra/pmc.h>
20 #include <asm/arch-tegra/sys_proto.h>
21 #include <asm/arch-tegra/warmboot.h>
23 void save_boot_params_ret(void);
25 DECLARE_GLOBAL_DATA_PTR;
28 /* UARTs which we can enable */
37 static bool from_spl __attribute__ ((section(".data")));
39 #ifndef CONFIG_SPL_BUILD
40 void save_boot_params(u32 r0, u32 r1, u32 r2, u32 r3)
42 from_spl = r0 != UBOOT_NOT_LOADED_FROM_SPL;
43 save_boot_params_ret();
47 bool spl_was_boot_source(void)
52 #if defined(CONFIG_TEGRA_SUPPORT_NON_SECURE)
53 #if !defined(CONFIG_TEGRA124)
54 #error tegra_cpu_is_non_secure has only been validated on Tegra124
56 bool tegra_cpu_is_non_secure(void)
59 * This register reads 0xffffffff in non-secure mode. This register
60 * only implements bits 31:20, so the lower bits will always read 0 in
61 * secure mode. Thus, the lower bits are an indicator for secure vs.
64 struct mc_ctlr *mc = (struct mc_ctlr *)NV_PA_MC_BASE;
65 uint32_t mc_s_cfg0 = readl(&mc->mc_security_cfg0);
66 return (mc_s_cfg0 & 1) == 1;
70 /* Read the RAM size directly from the memory controller */
71 static phys_size_t query_sdram_size(void)
73 struct mc_ctlr *const mc = (struct mc_ctlr *)NV_PA_MC_BASE;
75 phys_size_t size_bytes;
77 emem_cfg = readl(&mc->mc_emem_cfg);
78 #if defined(CONFIG_TEGRA20)
79 debug("mc->mc_emem_cfg (MEM_SIZE_KB) = 0x%08x\n", emem_cfg);
80 size_bytes = get_ram_size((void *)PHYS_SDRAM_1, emem_cfg * 1024);
82 debug("mc->mc_emem_cfg (MEM_SIZE_MB) = 0x%08x\n", emem_cfg);
83 #ifndef CONFIG_PHYS_64BIT
85 * If >=4GB RAM is present, the byte RAM size won't fit into 32-bits
86 * and will wrap. Clip the reported size to the maximum that a 32-bit
87 * variable can represent (rounded to a page).
89 if (emem_cfg >= 4096) {
90 size_bytes = U32_MAX & ~(0x1000 - 1);
94 /* RAM size EMC is programmed to. */
95 size_bytes = (phys_size_t)emem_cfg * 1024 * 1024;
98 * If all RAM fits within 32-bits, it can be accessed without
99 * LPAE, so go test the RAM size. Otherwise, we can't access
100 * all the RAM, and get_ram_size() would get confused, so
101 * avoid using it. There's no reason we should need this
102 * validation step anyway.
104 if (emem_cfg <= (0 - PHYS_SDRAM_1) / (1024 * 1024))
105 size_bytes = get_ram_size((void *)PHYS_SDRAM_1,
111 #if defined(CONFIG_TEGRA30) || defined(CONFIG_TEGRA114)
112 /* External memory limited to 2047 MB due to IROM/HI-VEC */
113 if (size_bytes == SZ_2G)
122 /* We do not initialise DRAM here. We just query the size */
123 gd->ram_size = query_sdram_size();
127 static int uart_configs[] = {
128 #if defined(CONFIG_TEGRA20)
129 #if defined(CONFIG_TEGRA_UARTA_UAA_UAB)
130 FUNCMUX_UART1_UAA_UAB,
131 #elif defined(CONFIG_TEGRA_UARTA_GPU)
133 #elif defined(CONFIG_TEGRA_UARTA_SDIO1)
136 FUNCMUX_UART1_IRRX_IRTX,
142 #elif defined(CONFIG_TEGRA30)
143 FUNCMUX_UART1_ULPI, /* UARTA */
148 #elif defined(CONFIG_TEGRA114)
152 FUNCMUX_UART4_GMI, /* UARTD */
154 #elif defined(CONFIG_TEGRA124)
155 FUNCMUX_UART1_KBC, /* UARTA */
158 FUNCMUX_UART4_GPIO, /* UARTD */
161 FUNCMUX_UART1_UART1, /* UARTA */
164 FUNCMUX_UART4_UART4, /* UARTD */
170 * Set up the specified uarts
172 * @param uarts_ids Mask containing UARTs to init (UARTx)
174 static void setup_uarts(int uart_ids)
176 static enum periph_id id_for_uart[] = {
185 for (i = 0; i < UART_COUNT; i++) {
186 if (uart_ids & (1 << i)) {
187 enum periph_id id = id_for_uart[i];
189 funcmux_select(id, uart_configs[i]);
190 clock_ll_start_uart(id);
195 void board_init_uart_f(void)
197 int uart_ids = 0; /* bit mask of which UART ids to enable */
199 #ifdef CONFIG_TEGRA_ENABLE_UARTA
202 #ifdef CONFIG_TEGRA_ENABLE_UARTB
205 #ifdef CONFIG_TEGRA_ENABLE_UARTC
208 #ifdef CONFIG_TEGRA_ENABLE_UARTD
211 #ifdef CONFIG_TEGRA_ENABLE_UARTE
214 setup_uarts(uart_ids);
217 #if !CONFIG_IS_ENABLED(OF_CONTROL)
218 static struct ns16550_platdata ns16550_com1_pdata = {
219 .base = CONFIG_SYS_NS16550_COM1,
221 .clock = CONFIG_SYS_NS16550_CLK,
222 .fcr = UART_FCR_DEFVAL,
225 U_BOOT_DEVICE(ns16550_com1) = {
226 "ns16550_serial", &ns16550_com1_pdata
230 #if !defined(CONFIG_SYS_DCACHE_OFF) && !defined(CONFIG_ARM64)
231 void enable_caches(void)
233 /* Enable D-cache. I-cache is already enabled in start.S */