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60d76ce9fa
The debug UART on the BCMBCA SoCs are in a different place than on the other BCM platforms. Support this with a static map when debugging is explicitly configured. Right now I can only test this on BCM6846 so this is the only compatible I list for the debug boardfile, but other compatibles from the BCMBCA family can be added to get LL_DEBUG support. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: William Zhang <william.zhang@broadcom.com> Link: https://lore.kernel.org/r/20240923-bcm-arm-bcm6846-v2-1-f4a7191b501a@linaro.org Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
31 lines
792 B
C
31 lines
792 B
C
// SPDX-License-Identifier: GPL-2.0-only
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// Copyright (C) 2024 Linus Walleij <linus.walleij@linaro.org>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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/* This is needed for LL-debug/earlyprintk/debug-macro.S */
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static struct map_desc bcmbca_io_desc[] __initdata = {
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{
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.virtual = CONFIG_DEBUG_UART_VIRT,
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.pfn = __phys_to_pfn(CONFIG_DEBUG_UART_PHYS),
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.length = SZ_4K,
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.type = MT_DEVICE,
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},
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};
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static void __init bcmbca_map_io(void)
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{
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iotable_init(bcmbca_io_desc, ARRAY_SIZE(bcmbca_io_desc));
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}
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static const char * const bcmbca_dt_compat[] = {
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/* TODO: Add other BCMBCA SoCs here to get debug UART support */
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"brcm,bcm6846",
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NULL,
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};
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DT_MACHINE_START(BCMBCA_DT, "BCMBCA Broadband Access Processors")
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.map_io = bcmbca_map_io,
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.dt_compat = bcmbca_dt_compat,
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MACHINE_END
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