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08b27fce29
Add initial support for Marvell PXA1908. The SoC has 4 Cortex-A53 cores, a GC7000UL GPU and a variety of peripheral controllers. Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr> Reviewed-by: Stefan Roese <sr@denx.de>
85 lines
1.7 KiB
C
85 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2024
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* Duje Mihanović <duje.mihanovic@skole.hr>
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*/
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#include <errno.h>
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#include <init.h>
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#include <fdt_support.h>
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#include <asm/io.h>
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#include <asm/global_data.h>
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DECLARE_GLOBAL_DATA_PTR;
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/* Timer constants */
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#define APBC_COUNTER_CLK_SEL 0xd4015064
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#define COUNTER_BASE 0xd4101000
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#define COUNTER_EN BIT(0)
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#define COUNTER_HALT_ON_DEBUG BIT(1)
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int timer_init(void)
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{
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u32 tmp = readl(APBC_COUNTER_CLK_SEL);
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if ((tmp >> 16) != 0x319)
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return -1;
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/* Set timer frequency to 26MHz */
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writel(tmp | 1, APBC_COUNTER_CLK_SEL);
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writel(COUNTER_EN | COUNTER_HALT_ON_DEBUG, COUNTER_BASE);
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gd->arch.timer_rate_hz = 26000000;
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return 0;
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}
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int board_init(void)
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{
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return 0;
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}
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int dram_init(void)
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{
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if (fdtdec_setup_mem_size_base() != 0)
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puts("fdtdec_setup_mem_size_base() has failed\n");
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return 0;
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}
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#ifndef CONFIG_SYSRESET
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void reset_cpu(void)
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{
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}
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#endif
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/* Stolen from arch/arm/mach-snapdragon/board.c */
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int board_fdt_blob_setup(void **fdtp)
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{
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struct fdt_header *fdt;
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bool internal_valid, external_valid;
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int ret = 0;
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fdt = (struct fdt_header *)get_prev_bl_fdt_addr();
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external_valid = fdt && !fdt_check_header(fdt);
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internal_valid = !fdt_check_header(*fdtp);
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/*
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* There is no point returning an error here, U-Boot can't do anything useful in this situation.
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* Bail out while we can still print a useful error message.
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*/
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if (!internal_valid && !external_valid)
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panic("Internal FDT is invalid and no external FDT was provided! (fdt=%#llx)\n",
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(phys_addr_t)fdt);
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if (internal_valid) {
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debug("Using built in FDT\n");
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ret = -EEXIST;
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} else {
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debug("Using external FDT\n");
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/* So we can use it before returning */
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*fdtp = fdt;
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}
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return ret;
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}
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