bsp/aarch64/raspberrypi: Add genet support

- Add genet FDT support. Main reference:
https://www.kernel.org/doc/Documentation/devicetree/bindings/net/brcm%2Cbcmgenet.yaml
- Add genet mmu
- Add raspberrypi4 nocache area
This commit is contained in:
Ning Yang
2024-11-20 16:42:04 +08:00
committed by Joel Sherrill
parent 04d25322ac
commit c2a1db3cde
7 changed files with 233 additions and 3 deletions

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@@ -0,0 +1,79 @@
/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsAArch64Raspberrypi4
*
* @brief This file provides the base Raspberrypi4 device tree
*/
/*
* Copyright (C) 2024 Ning Yang
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/dts-v1/;
/ {
#address-cells = <2>;
#size-cells = <1>;
amba@7c000000 {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x7c000000 0x00 0xfc000000 0x3800000>, <0x40000000 0x00 0xff800000 0x800000>;
interrupt-controller@40041000 {
compatible = "arm,gic-400";
#address-cells = <2>;
#interrupt-cells = <3>;
reg = <0x40041000 0x1000>, <0x40042000 0x2000>, <0x40044000 0x2000>, <0x40046000 0x2000>;
interrupt-controller;
phandle = <1>;
};
ethernet@7d580000 {
phy-mode = "rgmii-rxid";
phy-handle = <&phy0>;
compatible = "brcm,bcm2711-genet-v5";
#address-cells = <1>;
#size-cells = <1>;
reg = <0x7d580000 0x10000>;
interrupt-parent = <1>;
interrupts = <0x0 0x9d 0x4> , <0x0 0x9e 0x4>;
mdio@e14 {
compatible = "brcm,genet-mdio-v5";
#address-cells = <1>;
#size-cells = <0>;
reg = <0xe14 0x8>;
phy0: ethernet-phy@1 {
reg = <0x1>;
};
};
};
};
};

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@@ -0,0 +1,50 @@
/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsAArch64Raspberrypi4
*
* @brief This source file contains the implementatin of bsp_fdt_get().
*/
/*
* Copyright (C) 2024 Ning Yang
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <bsp.h>
#include <bsp/fdt.h>
const void *bsp_fdt_get(void)
{
return bcm2711_rpi_4_b_dtb;
}
uint32_t bsp_fdt_map_intr(const uint32_t *intr, size_t icells)
{
if (icells != 3) {
return 0;
}
return (intr[0] == 0 ? 32 : 16) + intr[1];
}

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@@ -0,0 +1,88 @@
/*
* Declarations for C structure representing binary file bcm2711-rpi-4-b.dtb
*
* WARNING: Automatically generated -- do not edit!
*/
#include <sys/types.h>
const unsigned char bcm2711_rpi_4_b_dtb[] = {
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};
const size_t bcm2711_rpi_4_b_dtb_size = sizeof(bcm2711_rpi_4_b_dtb);

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@@ -59,6 +59,10 @@ BSP_START_TEXT_SECTION void raspberrypi_4_setup_mmu_and_cache(void);
extern "C" {
#endif /* __cplusplus */
#define BSP_FDT_IS_SUPPORTED
extern const unsigned char bcm2711_rpi_4_b_dtb[];
extern const size_t bcm2711_rpi_4_b_dtb_size;
#define BSP_ARM_GIC_CPUIF_BASE 0xFF842000
#define BSP_ARM_GIC_DIST_BASE 0xFF841000

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@@ -61,6 +61,12 @@ raspberrypi_4_mmu_config_table[] = {
.begin = 0xFF800000U,
.end = 0xFFA00000U,
.flags = AARCH64_MMU_DEVICE
},
{ /* RPI genet address */
.begin = (unsigned)0xFD580000,
.end = (unsigned)0xFD580000 + (unsigned)0x10000,
.flags = AARCH64_MMU_DEVICE
}
};

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@@ -64,6 +64,8 @@ links:
- role: build-dependency
uid: objwatchdog
source:
- bsps/aarch64/raspberrypi/fdt/bsp_fdt.c
- bsps/aarch64/raspberrypi/fdt/rpi4b_dtb.c
- bsps/aarch64/raspberrypi/start/bspstart.c
- bsps/aarch64/raspberrypi/start/bspstarthooks.c
- bsps/aarch64/raspberrypi/start/bspstartmmu.c

View File

@@ -30,7 +30,8 @@ content: |
MEMORY {
RAM_MMU : ORIGIN = 0x0, LENGTH = (0x1000 * ${AARCH64_MMU_TRANSLATION_TABLE_PAGES})
RAM : ORIGIN = 0x80000, LENGTH = 1024M
RAM : ORIGIN = 0x80000, LENGTH = 1024M - 0x80000 - 16M
RAM_NOCACHE : ORIGIN = 0x40000000 - 16M, LENGTH = 16M
}
REGION_ALIAS ("REGION_START", RAM);
@@ -48,8 +49,8 @@ content: |
REGION_ALIAS ("REGION_BSS", RAM);
REGION_ALIAS ("REGION_WORK", RAM);
REGION_ALIAS ("REGION_STACK", RAM);
REGION_ALIAS ("REGION_NOCACHE", RAM);
REGION_ALIAS ("REGION_NOCACHE_LOAD", RAM);
REGION_ALIAS ("REGION_NOCACHE", RAM_NOCACHE);
REGION_ALIAS ("REGION_NOCACHE_LOAD", RAM_NOCACHE);
bsp_stack_abt_size = DEFINED (bsp_stack_abt_size) ? bsp_stack_abt_size : 1024;