u-boot/board/freescale/t4rdb/t4240rdb.c
Simon Glass e895a4b06f fdt: Allow ft_board_setup() to report failure
This function can fail if the device tree runs out of space. Rather than
silently booting with an incomplete device tree, allow the failure to be
detected.

Unfortunately this involves changing a lot of places in the code. I have
not changed behvaiour to return an error where one is not currently
returned, to avoid unexpected breakage.

Eventually it would be nice to allow boards to register functions to be
called to update the device tree. This would avoid all the many functions
to do this. However it's not clear yet if this should be done using driver
model or with a linker list. This work is left for later.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
2014-11-21 04:43:15 +01:00

145 lines
3 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"
#include "cpld.h"
DECLARE_GLOBAL_DATA_PTR;
int checkboard(void)
{
struct cpu_type *cpu = gd->arch.cpu;
u8 sw;
printf("Board: %sRDB, ", cpu->name);
printf("Board rev: 0x%02x CPLD ver: 0x%02x%02x, ",
CPLD_READ(hw_ver), CPLD_READ(sw_maj_ver), CPLD_READ(sw_min_ver));
sw = CPLD_READ(vbank);
sw = sw & CPLD_BANK_SEL_MASK;
if (sw <= 7)
printf("vBank: %d\n", sw);
else
printf("Unsupported Bank=%x\n", sw);
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;
}
int 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
return 0;
}
/*
* 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;
}
}