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feat(rockchip): increase FDT Buffer for Rockchip Devices

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Modify the FDT buffer for Rockchip devices to 384KiB. This is done to
allow us to pass mainline devicetrees with symbols through Arm Trusted
Firmware. 384KiB was chosen as 512KiB is very near the maximum
supported with the current reserved memory. As of kernel version 6.13,
the largest devicetree with symbols enabled is 215KiB, and the largest
Rockchip devicetree with symbols enabled is 176KiB
(rk3588-evb1-v10.dtb).

Change-Id: Iea9343d7a30ee26cad3ee5cc848980a93873ae34
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
This commit is contained in:
Chris Morgan 2025-01-30 10:57:22 -06:00 • committed by Yann Gautier
parent 0035ab76e5
commit ab99dce4b7
1 changed files with 2 additions and 2 deletions
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4
plat/rockchip/common/params_setup.c
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2016-2019, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2016-2025, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@ -37,7 +37,7 @@ static int dt_process_fdt(u_register_t param_from_bl2)
static uint32_t rk_uart_base = PLAT_RK_UART_BASE;
static uint32_t rk_uart_baudrate = PLAT_RK_UART_BAUDRATE;
static uint32_t rk_uart_clock = PLAT_RK_UART_CLOCK;
#define FDT_BUFFER_SIZE 0x20000
#define FDT_BUFFER_SIZE 0x60000
static uint64_t fdt_buffer[FDT_BUFFER_SIZE / 8];
void *plat_get_fdt(void)