u-boot/board/freescale/t4rdb/t4240rdb.c
York Sun 9d0456822c powerpc/mpc85xx: Check return value of find_tlb_idx
find_tlb_idx() is called in board_early_init_r() on multiple boards.
The return value is not checked before being used to disable a TLB.
In normal case the return value wouldn't be -1. In case of a mis-
configuration during porting to a new board, checking the return value
may be helpful to reveal some user errors.

Signed-off-by: York Sun <yorksun@freescale.com>
2014-07-22 16:25:54 -07:00

131 lines
2.7 KiB
C

/*
* Copyright 2014 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include <i2c.h>
#include <netdev.h>
#include <linux/compiler.h>
#include <asm/mmu.h>
#include <asm/processor.h>
#include <asm/cache.h>
#include <asm/immap_85xx.h>
#include <asm/fsl_law.h>
#include <asm/fsl_serdes.h>
#include <asm/fsl_portals.h>
#include <asm/fsl_liodn.h>
#include <fm_eth.h>
#include "t4rdb.h"
DECLARE_GLOBAL_DATA_PTR;
int checkboard(void)
{
struct cpu_type *cpu = gd->arch.cpu;
printf("Board: %sRDB, ", cpu->name);
puts("SERDES Reference Clocks:\n");
printf(" SERDES1=100MHz SERDES2=156.25MHz\n"
" SERDES3=100MHz SERDES4=100MHz\n");
return 0;
}
int board_early_init_r(void)
{
const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
int flash_esel = find_tlb_idx((void *)flashbase, 1);
/*
* Remap Boot flash + PROMJET region to caching-inhibited
* so that flash can be erased properly.
*/
/* Flush d-cache and invalidate i-cache of any FLASH data */
flush_dcache();
invalidate_icache();
if (flash_esel == -1) {
/* very unlikely unless something is messed up */
puts("Error: Could not find TLB for FLASH BASE\n");
flash_esel = 2; /* give our best effort to continue */
} else {
/* invalidate existing TLB entry for flash + promjet */
disable_tlb(flash_esel);
}
set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS,
MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
0, flash_esel, BOOKE_PAGESZ_256M, 1);
set_liodns();
#ifdef CONFIG_SYS_DPAA_QBMAN
setup_portals();
#endif
return 0;
}
int misc_init_r(void)
{
return 0;
}
void ft_board_setup(void *blob, bd_t *bd)
{
phys_addr_t base;
phys_size_t size;
ft_cpu_setup(blob, bd);
base = getenv_bootm_low();
size = getenv_bootm_size();
fdt_fixup_memory(blob, (u64)base, (u64)size);
#ifdef CONFIG_PCI
pci_of_setup(blob, bd);
#endif
fdt_fixup_liodn(blob);
fdt_fixup_dr_usb(blob, bd);
#ifdef CONFIG_SYS_DPAA_FMAN
fdt_fixup_fman_ethernet(blob);
fdt_fixup_board_enet(blob);
#endif
}
/*
* This function is called by bdinfo to print detail board information.
* As an exmaple for future board, we organize the messages into
* several sections. If applicable, the message is in the format of
* <name> = <value>
* It should aligned with normal output of bdinfo command.
*
* Voltage: Core, DDR and another configurable voltages
* Clock : Critical clocks which are not printed already
* RCW : RCW source if not printed already
* Misc : Other important information not in above catagories
*/
void board_detail(void)
{
int rcwsrc;
/* RCW section SW3[4] */
rcwsrc = 0x0;
puts("RCW source = ");
switch (rcwsrc & 0x1) {
case 0x1:
puts("SDHC/eMMC\n");
break;
default:
puts("I2C normal addressing\n");
break;
}
}