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authorStephen Warren <swarren@nvidia.com>2016-05-12 19:32:55 (GMT)
committerTom Warren <twarren@nvidia.com>2016-05-31 18:22:59 (GMT)
commitc7ba99c8c18a606b95a89366bc4fd94a8295772f (patch)
tree98077cb630848629d5b69e7e29029ae3cb6f4cab /include
parent39f633320c569a5d975d2d051ff2683db27bd021 (diff)
downloadu-boot-c7ba99c8c18a606b95a89366bc4fd94a8295772f.tar.xz
ARM: tegra: add core Tegra186 support
This adds the bare minimum code to support Tegra186, with UART and eMMC working. The empty gpio.h is required because <asm/gpio.h> includes it. A future cleanup round may be able to solve this for all Tegra generations at once. mach-tegra/Makefile is adjusted not to compile anything for Tegra186, but instead to defer everything to mach-tegra/tegra186/Makefile. This allows the SoC code to pick-and-choose which of the C files in the "common" mach-tegra/ directory to compile in based on the SoC's needs. Most of the code is not valid for Tegra186, and this approach removes the need for mach-tegra/Makefile to contain many SoC-specific ifdefs. This approach may be applied to all other Tegra SoCs in a future cleanup round. board186.c is introduced to replace board.c and board2.c. These files currently contain a slew of SoC- and board-specific code that is not valid for Tegra186. This approach avoids adding yet more ifdefs to those files. A future cleanup round may refactor most of board*.c into board-/ SoC-specific functions files thus allowing the top-level functions like board_init_early_f to be shared again. Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'include')
-rw-r--r--include/configs/tegra186-common.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/include/configs/tegra186-common.h b/include/configs/tegra186-common.h
new file mode 100644
index 0000000..aa7b9d0
--- /dev/null
+++ b/include/configs/tegra186-common.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2013-2016, NVIDIA CORPORATION.
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#ifndef _TEGRA186_COMMON_H_
+#define _TEGRA186_COMMON_H_
+
+#include "tegra-common.h"
+
+/* Cortex-A57 uses a cache line size of 64 bytes */
+#define CONFIG_SYS_CACHELINE_SIZE 64
+
+/*
+ * NS16550 Configuration
+ */
+#define V_NS16550_CLK 408000000 /* 408MHz (pllp_out0) */
+
+/*
+ * Miscellaneous configurable options
+ */
+#define CONFIG_STACKBASE 0x82800000 /* 40MB */
+
+/*-----------------------------------------------------------------------
+ * Physical Memory Map
+ */
+
+#define CONFIG_SYS_TEXT_BASE 0x80080000
+
+/* Generic Interrupt Controller */
+#define CONFIG_GICV2
+
+/*
+ * Memory layout for where various images get loaded by boot scripts:
+ *
+ * scriptaddr can be pretty much anywhere that doesn't conflict with something
+ * else. Put it above BOOTMAPSZ to eliminate conflicts.
+ *
+ * pxefile_addr_r can be pretty much anywhere that doesn't conflict with
+ * something else. Put it above BOOTMAPSZ to eliminate conflicts.
+ *
+ * kernel_addr_r must be within the first 128M of RAM in order for the
+ * kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will
+ * decompress itself to 0x8000 after the start of RAM, kernel_addr_r
+ * should not overlap that area, or the kernel will have to copy itself
+ * somewhere else before decompression. Similarly, the address of any other
+ * data passed to the kernel shouldn't overlap the start of RAM. Pushing
+ * this up to 16M allows for a sizable kernel to be decompressed below the
+ * compressed load address.
+ *
+ * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
+ * the compressed kernel to be up to 16M too.
+ *
+ * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
+ * for the FDT/DTB to be up to 1M, which is hopefully plenty.
+ */
+#define CONFIG_LOADADDR 0x80080000
+#define MEM_LAYOUT_ENV_SETTINGS \
+ "scriptaddr=0x90000000\0" \
+ "pxefile_addr_r=0x90100000\0" \
+ "kernel_addr_r=" __stringify(CONFIG_LOADADDR) "\0" \
+ "fdt_addr_r=0x82000000\0" \
+ "ramdisk_addr_r=0x82100000\0"
+
+/* Defines for SPL */
+#define CONFIG_SPL_TEXT_BASE 0x80108000
+#define CONFIG_SYS_SPL_MALLOC_START 0x80090000
+#define CONFIG_SPL_STACK 0x800ffffc
+
+#endif