]>
git.ipfire.org Git - people/ms/u-boot.git/blob - arch/arm/cpu/tegra-common/board.c
2 * (C) Copyright 2010,2011
3 * NVIDIA Corporation <www.nvidia.com>
5 * SPDX-License-Identifier: GPL-2.0+
10 #include <asm/arch/clock.h>
11 #include <asm/arch/funcmux.h>
12 #include <asm/arch/tegra.h>
13 #include <asm/arch-tegra/board.h>
14 #include <asm/arch-tegra/pmc.h>
15 #include <asm/arch-tegra/sys_proto.h>
16 #include <asm/arch-tegra/warmboot.h>
18 DECLARE_GLOBAL_DATA_PTR
;
21 /* UARTs which we can enable */
31 * Boot ROM initializes the odmdata in APBDEV_PMC_SCRATCH20_0,
32 * so we are using this value to identify memory size.
35 unsigned int query_sdram_size(void)
37 struct pmc_ctlr
*const pmc
= (struct pmc_ctlr
*)NV_PA_PMC_BASE
;
40 reg
= readl(&pmc
->pmc_scratch20
);
41 debug("pmc->pmc_scratch20 (ODMData) = 0x%08x\n", reg
);
43 #if defined(CONFIG_TEGRA20)
44 /* bits 30:28 in OdmData are used for RAM size on T20 */
47 switch ((reg
) >> 28) {
49 return 0x10000000; /* 256 MB */
53 return 0x20000000; /* 512 MB */
55 return 0x40000000; /* 1GB */
57 #else /* Tegra30/Tegra114 */
58 /* bits 31:28 in OdmData are used for RAM size on T30 */
59 switch ((reg
) >> 28) {
63 return 0x10000000; /* 256 MB */
65 return 0x20000000; /* 512 MB */
67 return 0x30000000; /* 768 MB */
69 return 0x40000000; /* 1GB */
71 return 0x7ff00000; /* 2GB - 1MB */
78 /* We do not initialise DRAM here. We just query the size */
79 gd
->ram_size
= query_sdram_size();
83 #ifdef CONFIG_DISPLAY_BOARDINFO
86 printf("Board: %s\n", sysinfo
.board_string
);
89 #endif /* CONFIG_DISPLAY_BOARDINFO */
91 static int uart_configs
[] = {
92 #if defined(CONFIG_TEGRA20)
93 #if defined(CONFIG_TEGRA_UARTA_UAA_UAB)
94 FUNCMUX_UART1_UAA_UAB
,
95 #elif defined(CONFIG_TEGRA_UARTA_GPU)
97 #elif defined(CONFIG_TEGRA_UARTA_SDIO1)
100 FUNCMUX_UART1_IRRX_IRTX
,
106 #elif defined(CONFIG_TEGRA30)
107 FUNCMUX_UART1_ULPI
, /* UARTA */
116 FUNCMUX_UART4_GMI
, /* UARTD */
122 * Set up the specified uarts
124 * @param uarts_ids Mask containing UARTs to init (UARTx)
126 static void setup_uarts(int uart_ids
)
128 static enum periph_id id_for_uart
[] = {
137 for (i
= 0; i
< UART_COUNT
; i
++) {
138 if (uart_ids
& (1 << i
)) {
139 enum periph_id id
= id_for_uart
[i
];
141 funcmux_select(id
, uart_configs
[i
]);
142 clock_ll_start_uart(id
);
147 void board_init_uart_f(void)
149 int uart_ids
= 0; /* bit mask of which UART ids to enable */
151 #ifdef CONFIG_TEGRA_ENABLE_UARTA
154 #ifdef CONFIG_TEGRA_ENABLE_UARTB
157 #ifdef CONFIG_TEGRA_ENABLE_UARTC
160 #ifdef CONFIG_TEGRA_ENABLE_UARTD
163 #ifdef CONFIG_TEGRA_ENABLE_UARTE
166 setup_uarts(uart_ids
);
169 #ifndef CONFIG_SYS_DCACHE_OFF
170 void enable_caches(void)
172 /* Enable D-cache. I-cache is already enabled in start.S */