mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-05 11:00:15 +00:00
049704f808
Commit37dc958947
("global_data.h: Change ram_top type to phys_addr_t") changed type of ram_top member from ulong to phys_addr_t but did not changed types in board_get_usable_ram_top() function which returns value for ram_top. So change ulong to phys_addr_t type also in board_get_usable_ram_top() signature and implementations. Fixes:37dc958947
("global_data.h: Change ram_top type to phys_addr_t") Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Simon Glass <sjg@chromium.org>
369 lines
8.7 KiB
C
369 lines
8.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Board specific initialization for AM654 EVM
|
|
*
|
|
* Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/
|
|
* Lokesh Vutla <lokeshvutla@ti.com>
|
|
*
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <fdt_support.h>
|
|
#include <image.h>
|
|
#include <init.h>
|
|
#include <net.h>
|
|
#include <asm/arch/sys_proto.h>
|
|
#include <asm/arch/hardware.h>
|
|
#include <asm/global_data.h>
|
|
#include <asm/gpio.h>
|
|
#include <asm/io.h>
|
|
#include <asm/omap_common.h>
|
|
#include <env.h>
|
|
#include <spl.h>
|
|
#include <asm/arch/sys_proto.h>
|
|
|
|
#include "../common/board_detect.h"
|
|
|
|
#define board_is_am65x_base_board() board_ti_is("AM6-COMPROCEVM")
|
|
|
|
/* Daughter card presence detection signals */
|
|
enum {
|
|
AM65X_EVM_APP_BRD_DET,
|
|
AM65X_EVM_LCD_BRD_DET,
|
|
AM65X_EVM_SERDES_BRD_DET,
|
|
AM65X_EVM_HDMI_GPMC_BRD_DET,
|
|
AM65X_EVM_BRD_DET_COUNT,
|
|
};
|
|
|
|
/* Max number of MAC addresses that are parsed/processed per daughter card */
|
|
#define DAUGHTER_CARD_NO_OF_MAC_ADDR 8
|
|
|
|
/* Regiter that controls the SERDES0 lane and clock assignment */
|
|
#define CTRLMMR_SERDES0_CTRL 0x00104080
|
|
#define PCIE_LANE0 0x1
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
int board_init(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int dram_init(void)
|
|
{
|
|
#ifdef CONFIG_PHYS_64BIT
|
|
gd->ram_size = 0x100000000;
|
|
#else
|
|
gd->ram_size = 0x80000000;
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
phys_size_t board_get_usable_ram_top(phys_size_t total_size)
|
|
{
|
|
#ifdef CONFIG_PHYS_64BIT
|
|
/* Limit RAM used by U-Boot to the DDR low region */
|
|
if (gd->ram_top > 0x100000000)
|
|
return 0x100000000;
|
|
#endif
|
|
|
|
return gd->ram_top;
|
|
}
|
|
|
|
int dram_init_banksize(void)
|
|
{
|
|
/* Bank 0 declares the memory available in the DDR low region */
|
|
gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
|
|
gd->bd->bi_dram[0].size = 0x80000000;
|
|
gd->ram_size = 0x80000000;
|
|
|
|
#ifdef CONFIG_PHYS_64BIT
|
|
/* Bank 1 declares the memory available in the DDR high region */
|
|
gd->bd->bi_dram[1].start = CONFIG_SYS_SDRAM_BASE1;
|
|
gd->bd->bi_dram[1].size = 0x80000000;
|
|
gd->ram_size = 0x100000000;
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_SPL_LOAD_FIT
|
|
int board_fit_config_name_match(const char *name)
|
|
{
|
|
#ifdef CONFIG_TARGET_AM654_A53_EVM
|
|
if (!strcmp(name, "k3-am654-base-board"))
|
|
return 0;
|
|
#endif
|
|
|
|
return -1;
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
|
|
int ft_board_setup(void *blob, struct bd_info *bd)
|
|
{
|
|
int ret;
|
|
|
|
ret = fdt_fixup_msmc_ram(blob, "/bus@100000", "sram@70000000");
|
|
if (ret < 0)
|
|
ret = fdt_fixup_msmc_ram(blob, "/interconnect@100000",
|
|
"sram@70000000");
|
|
if (ret) {
|
|
printf("%s: fixing up msmc ram failed %d\n", __func__, ret);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_TI_I2C_BOARD_DETECT
|
|
int do_board_detect(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = ti_i2c_eeprom_am6_get_base(CONFIG_EEPROM_BUS_ADDRESS,
|
|
CONFIG_EEPROM_CHIP_ADDRESS);
|
|
if (ret)
|
|
pr_err("Reading on-board EEPROM at 0x%02x failed %d\n",
|
|
CONFIG_EEPROM_CHIP_ADDRESS, ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int checkboard(void)
|
|
{
|
|
struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
|
|
|
|
if (do_board_detect())
|
|
/* EEPROM not populated */
|
|
printf("Board: %s rev %s\n", "AM6-COMPROCEVM", "E3");
|
|
else
|
|
printf("Board: %s rev %s\n", ep->name, ep->version);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void setup_board_eeprom_env(void)
|
|
{
|
|
char *name = "am65x";
|
|
|
|
if (do_board_detect())
|
|
goto invalid_eeprom;
|
|
|
|
if (board_is_am65x_base_board())
|
|
name = "am65x";
|
|
else
|
|
printf("Unidentified board claims %s in eeprom header\n",
|
|
board_ti_get_name());
|
|
|
|
invalid_eeprom:
|
|
set_board_info_env_am6(name);
|
|
}
|
|
|
|
static int init_daughtercard_det_gpio(char *gpio_name, struct gpio_desc *desc)
|
|
{
|
|
int ret;
|
|
|
|
memset(desc, 0, sizeof(*desc));
|
|
|
|
ret = dm_gpio_lookup_name(gpio_name, desc);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* Request GPIO, simply re-using the name as label */
|
|
ret = dm_gpio_request(desc, gpio_name);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return dm_gpio_set_dir_flags(desc, GPIOD_IS_IN);
|
|
}
|
|
|
|
static int probe_daughtercards(void)
|
|
{
|
|
struct ti_am6_eeprom ep;
|
|
struct gpio_desc board_det_gpios[AM65X_EVM_BRD_DET_COUNT];
|
|
char mac_addr[DAUGHTER_CARD_NO_OF_MAC_ADDR][TI_EEPROM_HDR_ETH_ALEN];
|
|
u8 mac_addr_cnt;
|
|
char name_overlays[1024] = { 0 };
|
|
int i, j;
|
|
int ret;
|
|
|
|
/*
|
|
* Daughter card presence detection signal name to GPIO (via I2C I/O
|
|
* expander @ address 0x38) name and EEPROM I2C address mapping.
|
|
*/
|
|
const struct {
|
|
char *gpio_name;
|
|
u8 i2c_addr;
|
|
} slot_map[AM65X_EVM_BRD_DET_COUNT] = {
|
|
{ "gpio@38_0", 0x52, }, /* AM65X_EVM_APP_BRD_DET */
|
|
{ "gpio@38_1", 0x55, }, /* AM65X_EVM_LCD_BRD_DET */
|
|
{ "gpio@38_2", 0x54, }, /* AM65X_EVM_SERDES_BRD_DET */
|
|
{ "gpio@38_3", 0x53, }, /* AM65X_EVM_HDMI_GPMC_BRD_DET */
|
|
};
|
|
|
|
/* Declaration of daughtercards to probe */
|
|
const struct {
|
|
u8 slot_index; /* Slot the card is installed */
|
|
char *card_name; /* EEPROM-programmed card name */
|
|
char *dtbo_name; /* Device tree overlay to apply */
|
|
u8 eth_offset; /* ethXaddr MAC address index offset */
|
|
} cards[] = {
|
|
{
|
|
AM65X_EVM_APP_BRD_DET,
|
|
"AM6-GPAPPEVM",
|
|
"k3-am654-gp.dtbo",
|
|
0,
|
|
},
|
|
{
|
|
AM65X_EVM_APP_BRD_DET,
|
|
"AM6-IDKAPPEVM",
|
|
"k3-am654-idk.dtbo",
|
|
3,
|
|
},
|
|
{
|
|
AM65X_EVM_SERDES_BRD_DET,
|
|
"SER-PCIE2LEVM",
|
|
"k3-am654-pcie-usb2.dtbo",
|
|
0,
|
|
},
|
|
{
|
|
AM65X_EVM_SERDES_BRD_DET,
|
|
"SER-PCIEUSBEVM",
|
|
"k3-am654-pcie-usb3.dtbo",
|
|
0,
|
|
},
|
|
{
|
|
AM65X_EVM_LCD_BRD_DET,
|
|
"OLDI-LCD1EVM",
|
|
"k3-am654-evm-oldi-lcd1evm.dtbo",
|
|
0,
|
|
},
|
|
};
|
|
|
|
/*
|
|
* Initialize GPIO used for daughtercard slot presence detection and
|
|
* keep the resulting handles in local array for easier access.
|
|
*/
|
|
for (i = 0; i < AM65X_EVM_BRD_DET_COUNT; i++) {
|
|
ret = init_daughtercard_det_gpio(slot_map[i].gpio_name,
|
|
&board_det_gpios[i]);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(cards); i++) {
|
|
/* Obtain card-specific slot index and associated I2C address */
|
|
u8 slot_index = cards[i].slot_index;
|
|
u8 i2c_addr = slot_map[slot_index].i2c_addr;
|
|
|
|
/*
|
|
* The presence detection signal is active-low, hence skip
|
|
* over this card slot if anything other than 0 is returned.
|
|
*/
|
|
ret = dm_gpio_get_value(&board_det_gpios[slot_index]);
|
|
if (ret < 0)
|
|
return ret;
|
|
else if (ret)
|
|
continue;
|
|
|
|
/* Get and parse the daughter card EEPROM record */
|
|
ret = ti_i2c_eeprom_am6_get(CONFIG_EEPROM_BUS_ADDRESS, i2c_addr,
|
|
&ep,
|
|
(char **)mac_addr,
|
|
DAUGHTER_CARD_NO_OF_MAC_ADDR,
|
|
&mac_addr_cnt);
|
|
if (ret) {
|
|
pr_err("Reading daughtercard EEPROM at 0x%02x failed %d\n",
|
|
i2c_addr, ret);
|
|
/*
|
|
* Even this is pretty serious let's just skip over
|
|
* this particular daughtercard, rather than ending
|
|
* the probing process altogether.
|
|
*/
|
|
continue;
|
|
}
|
|
|
|
/* Only process the parsed data if we found a match */
|
|
if (strncmp(ep.name, cards[i].card_name, sizeof(ep.name)))
|
|
continue;
|
|
|
|
printf("Detected: %s rev %s\n", ep.name, ep.version);
|
|
|
|
/*
|
|
* Populate any MAC addresses from daughtercard into the U-Boot
|
|
* environment, starting with a card-specific offset so we can
|
|
* have multiple cards contribute to the MAC pool in a well-
|
|
* defined manner.
|
|
*/
|
|
for (j = 0; j < mac_addr_cnt; j++) {
|
|
if (!is_valid_ethaddr((u8 *)mac_addr[j]))
|
|
continue;
|
|
|
|
eth_env_set_enetaddr_by_index("eth",
|
|
cards[i].eth_offset + j,
|
|
(uchar *)mac_addr[j]);
|
|
}
|
|
|
|
/*
|
|
* It has been observed that setting SERDES0 lane mux to USB prevents USB
|
|
* 2.0 operation on USB0. Setting SERDES0 lane mux to non-USB when USB0 is
|
|
* used in USB 2.0 only mode solves this issue. For USB3.0+2.0 operation
|
|
* this issue is not present.
|
|
*
|
|
* Implement this workaround by writing 1 to LANE_FUNC_SEL field in
|
|
* CTRLMMR_SERDES0_CTRL register.
|
|
*/
|
|
if (!strncmp(ep.name, "SER-PCIE2LEVM", sizeof(ep.name)))
|
|
writel(PCIE_LANE0, CTRLMMR_SERDES0_CTRL);
|
|
|
|
/* Skip if no overlays are to be added */
|
|
if (!strlen(cards[i].dtbo_name))
|
|
continue;
|
|
|
|
/*
|
|
* Make sure we are not running out of buffer space by checking
|
|
* if we can fit the new overlay, a trailing space to be used
|
|
* as a separator, plus the terminating zero.
|
|
*/
|
|
if (strlen(name_overlays) + strlen(cards[i].dtbo_name) + 2 >
|
|
sizeof(name_overlays))
|
|
return -ENOMEM;
|
|
|
|
/* Append to our list of overlays */
|
|
strcat(name_overlays, cards[i].dtbo_name);
|
|
strcat(name_overlays, " ");
|
|
}
|
|
|
|
/* Apply device tree overlay(s) to the U-Boot environment, if any */
|
|
if (strlen(name_overlays))
|
|
return env_set("name_overlays", name_overlays);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
int board_late_init(void)
|
|
{
|
|
if (IS_ENABLED(CONFIG_TI_I2C_BOARD_DETECT)) {
|
|
struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
|
|
|
|
setup_board_eeprom_env();
|
|
|
|
/*
|
|
* The first MAC address for ethernet a.k.a. ethernet0 comes from
|
|
* efuse populated via the am654 gigabit eth switch subsystem driver.
|
|
* All the other ones are populated via EEPROM, hence continue with
|
|
* an index of 1.
|
|
*/
|
|
board_ti_am6_set_ethaddr(1, ep->mac_addr_cnt);
|
|
|
|
/* Check for and probe any plugged-in daughtercards */
|
|
probe_daughtercards();
|
|
}
|
|
|
|
return 0;
|
|
}
|