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-rw-r--r--arch/arm/mach-tegra/board.c159
1 files changed, 159 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/board.c b/arch/arm/mach-tegra/board.c
new file mode 100644
index 0000000..b6a84a5
--- /dev/null
+++ b/arch/arm/mach-tegra/board.c
@@ -0,0 +1,159 @@
+/*
+ * (C) Copyright 2010-2014
+ * NVIDIA Corporation <www.nvidia.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/funcmux.h>
+#include <asm/arch/mc.h>
+#include <asm/arch/tegra.h>
+#include <asm/arch-tegra/board.h>
+#include <asm/arch-tegra/pmc.h>
+#include <asm/arch-tegra/sys_proto.h>
+#include <asm/arch-tegra/warmboot.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+enum {
+ /* UARTs which we can enable */
+ UARTA = 1 << 0,
+ UARTB = 1 << 1,
+ UARTC = 1 << 2,
+ UARTD = 1 << 3,
+ UARTE = 1 << 4,
+ UART_COUNT = 5,
+};
+
+/* Read the RAM size directly from the memory controller */
+unsigned int query_sdram_size(void)
+{
+ struct mc_ctlr *const mc = (struct mc_ctlr *)NV_PA_MC_BASE;
+ u32 size_mb;
+
+ size_mb = readl(&mc->mc_emem_cfg);
+#if defined(CONFIG_TEGRA20)
+ debug("mc->mc_emem_cfg (MEM_SIZE_KB) = 0x%08x\n", size_mb);
+ size_mb = get_ram_size((void *)PHYS_SDRAM_1, size_mb * 1024);
+#else
+ debug("mc->mc_emem_cfg (MEM_SIZE_MB) = 0x%08x\n", size_mb);
+ size_mb = get_ram_size((void *)PHYS_SDRAM_1, size_mb * 1024 * 1024);
+#endif
+
+#if defined(CONFIG_TEGRA30) || defined(CONFIG_TEGRA114)
+ /* External memory limited to 2047 MB due to IROM/HI-VEC */
+ if (size_mb == SZ_2G) size_mb -= SZ_1M;
+#endif
+
+ return size_mb;
+}
+
+int dram_init(void)
+{
+ /* We do not initialise DRAM here. We just query the size */
+ gd->ram_size = query_sdram_size();
+ return 0;
+}
+
+#ifdef CONFIG_DISPLAY_BOARDINFO
+int checkboard(void)
+{
+ printf("Board: %s\n", sysinfo.board_string);
+ return 0;
+}
+#endif /* CONFIG_DISPLAY_BOARDINFO */
+
+static int uart_configs[] = {
+#if defined(CONFIG_TEGRA20)
+ #if defined(CONFIG_TEGRA_UARTA_UAA_UAB)
+ FUNCMUX_UART1_UAA_UAB,
+ #elif defined(CONFIG_TEGRA_UARTA_GPU)
+ FUNCMUX_UART1_GPU,
+ #elif defined(CONFIG_TEGRA_UARTA_SDIO1)
+ FUNCMUX_UART1_SDIO1,
+ #else
+ FUNCMUX_UART1_IRRX_IRTX,
+#endif
+ FUNCMUX_UART2_UAD,
+ -1,
+ FUNCMUX_UART4_GMC,
+ -1,
+#elif defined(CONFIG_TEGRA30)
+ FUNCMUX_UART1_ULPI, /* UARTA */
+ -1,
+ -1,
+ -1,
+ -1,
+#elif defined(CONFIG_TEGRA114)
+ -1,
+ -1,
+ -1,
+ FUNCMUX_UART4_GMI, /* UARTD */
+ -1,
+#else /* Tegra124 */
+ FUNCMUX_UART1_KBC, /* UARTA */
+ -1,
+ -1,
+ FUNCMUX_UART4_GPIO, /* UARTD */
+ -1,
+#endif
+};
+
+/**
+ * Set up the specified uarts
+ *
+ * @param uarts_ids Mask containing UARTs to init (UARTx)
+ */
+static void setup_uarts(int uart_ids)
+{
+ static enum periph_id id_for_uart[] = {
+ PERIPH_ID_UART1,
+ PERIPH_ID_UART2,
+ PERIPH_ID_UART3,
+ PERIPH_ID_UART4,
+ PERIPH_ID_UART5,
+ };
+ size_t i;
+
+ for (i = 0; i < UART_COUNT; i++) {
+ if (uart_ids & (1 << i)) {
+ enum periph_id id = id_for_uart[i];
+
+ funcmux_select(id, uart_configs[i]);
+ clock_ll_start_uart(id);
+ }
+ }
+}
+
+void board_init_uart_f(void)
+{
+ int uart_ids = 0; /* bit mask of which UART ids to enable */
+
+#ifdef CONFIG_TEGRA_ENABLE_UARTA
+ uart_ids |= UARTA;
+#endif
+#ifdef CONFIG_TEGRA_ENABLE_UARTB
+ uart_ids |= UARTB;
+#endif
+#ifdef CONFIG_TEGRA_ENABLE_UARTC
+ uart_ids |= UARTC;
+#endif
+#ifdef CONFIG_TEGRA_ENABLE_UARTD
+ uart_ids |= UARTD;
+#endif
+#ifdef CONFIG_TEGRA_ENABLE_UARTE
+ uart_ids |= UARTE;
+#endif
+ setup_uarts(uart_ids);
+}
+
+#ifndef CONFIG_SYS_DCACHE_OFF
+void enable_caches(void)
+{
+ /* Enable D-cache. I-cache is already enabled in start.S */
+ dcache_enable();
+}
+#endif