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smaeul-u-boot/arch/arm/mach-k3/j721e_init.c
Dave Gerlach 61305e00c7 arm: mach-k3: j721e_init: Force early probe of clk-k3 driver 
Force the clk-k3 driver to probe early during R5 SPL boot to ensure the
default system clock configuration is completed. Many other drivers
assume a default state of the clock tree and it is currently possible
for them to probe before clk-k3 depending on the exact system
configuration.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Reported-by: Keerthy <j-keerthy@ti.com>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tero Kristo <kristo@kernel.org>
2021-06-11 16:34:52 +05:30

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// SPDX-License-Identifier: GPL-2.0+
/*
* J721E: SoC specific initialization
*
* Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/
* Lokesh Vutla <lokeshvutla@ti.com>
*/
#include <common.h>
#include <init.h>
#include <spl.h>
#include <asm/io.h>
#include <asm/armv7_mpu.h>
#include <asm/arch/hardware.h>
#include <asm/arch/sysfw-loader.h>
#include "common.h"
#include <asm/arch/sys_proto.h>
#include <linux/soc/ti/ti_sci_protocol.h>
#include <dm.h>
#include <dm/uclass-internal.h>
#include <dm/pinctrl.h>
#include <mmc.h>
#include <remoteproc.h>
#ifdef CONFIG_SPL_BUILD
#ifdef CONFIG_K3_LOAD_SYSFW
#ifdef CONFIG_TI_SECURE_DEVICE
struct fwl_data cbass_hc_cfg0_fwls[] = {
{ "PCIE0_CFG", 2560, 8 },
{ "PCIE1_CFG", 2561, 8 },
{ "USB3SS0_CORE", 2568, 4 },
{ "USB3SS1_CORE", 2570, 4 },
{ "EMMC8SS0_CFG", 2576, 4 },
{ "UFS_HCI0_CFG", 2580, 4 },
{ "SERDES0", 2584, 1 },
{ "SERDES1", 2585, 1 },
}, cbass_hc0_fwls[] = {
{ "PCIE0_HP", 2528, 24 },
{ "PCIE0_LP", 2529, 24 },
{ "PCIE1_HP", 2530, 24 },
{ "PCIE1_LP", 2531, 24 },
}, cbass_rc_cfg0_fwls[] = {
{ "EMMCSD4SS0_CFG", 2380, 4 },
}, cbass_rc0_fwls[] = {
{ "GPMC0", 2310, 8 },
}, infra_cbass0_fwls[] = {
{ "PLL_MMR0", 8, 26 },
{ "CTRL_MMR0", 9, 16 },
}, mcu_cbass0_fwls[] = {
{ "MCU_R5FSS0_CORE0", 1024, 4 },
{ "MCU_R5FSS0_CORE0_CFG", 1025, 2 },
{ "MCU_R5FSS0_CORE1", 1028, 4 },
{ "MCU_FSS0_CFG", 1032, 12 },
{ "MCU_FSS0_S1", 1033, 8 },
{ "MCU_FSS0_S0", 1036, 8 },
{ "MCU_PSROM49152X32", 1048, 1 },
{ "MCU_MSRAM128KX64", 1050, 8 },
{ "MCU_CTRL_MMR0", 1200, 8 },
{ "MCU_PLL_MMR0", 1201, 3 },
{ "MCU_CPSW0", 1220, 2 },
}, wkup_cbass0_fwls[] = {
{ "WKUP_CTRL_MMR0", 131, 16 },
};
#endif
#endif
static void ctrl_mmr_unlock(void)
{
/* Unlock all WKUP_CTRL_MMR0 module registers */
mmr_unlock(WKUP_CTRL_MMR0_BASE, 0);
mmr_unlock(WKUP_CTRL_MMR0_BASE, 1);
mmr_unlock(WKUP_CTRL_MMR0_BASE, 2);
mmr_unlock(WKUP_CTRL_MMR0_BASE, 3);
mmr_unlock(WKUP_CTRL_MMR0_BASE, 4);
mmr_unlock(WKUP_CTRL_MMR0_BASE, 6);
mmr_unlock(WKUP_CTRL_MMR0_BASE, 7);
/* Unlock all MCU_CTRL_MMR0 module registers */
mmr_unlock(MCU_CTRL_MMR0_BASE, 0);
mmr_unlock(MCU_CTRL_MMR0_BASE, 1);
mmr_unlock(MCU_CTRL_MMR0_BASE, 2);
mmr_unlock(MCU_CTRL_MMR0_BASE, 3);
mmr_unlock(MCU_CTRL_MMR0_BASE, 4);
/* Unlock all CTRL_MMR0 module registers */
mmr_unlock(CTRL_MMR0_BASE, 0);
mmr_unlock(CTRL_MMR0_BASE, 1);
mmr_unlock(CTRL_MMR0_BASE, 2);
mmr_unlock(CTRL_MMR0_BASE, 3);
mmr_unlock(CTRL_MMR0_BASE, 5);
if (soc_is_j721e())
mmr_unlock(CTRL_MMR0_BASE, 6);
mmr_unlock(CTRL_MMR0_BASE, 7);
}
#if defined(CONFIG_K3_LOAD_SYSFW)
void k3_mmc_stop_clock(void)
{
if (spl_boot_device() == BOOT_DEVICE_MMC1) {
struct mmc *mmc = find_mmc_device(0);
if (!mmc)
return;
mmc->saved_clock = mmc->clock;
mmc_set_clock(mmc, 0, true);
}
}
void k3_mmc_restart_clock(void)
{
if (spl_boot_device() == BOOT_DEVICE_MMC1) {
struct mmc *mmc = find_mmc_device(0);
if (!mmc)
return;
mmc_set_clock(mmc, mmc->saved_clock, false);
}
}
#endif
/*
* This uninitialized global variable would normal end up in the .bss section,
* but the .bss is cleared between writing and reading this variable, so move
* it to the .data section.
*/
u32 bootindex __section(".data");
static struct rom_extended_boot_data bootdata __section(".data");
static void store_boot_info_from_rom(void)
{
bootindex = *(u32 *)(CONFIG_SYS_K3_BOOT_PARAM_TABLE_INDEX);
memcpy(&bootdata, (uintptr_t *)ROM_ENTENDED_BOOT_DATA_INFO,
sizeof(struct rom_extended_boot_data));
}
void board_init_f(ulong dummy)
{
#if defined(CONFIG_K3_J721E_DDRSS) || defined(CONFIG_K3_LOAD_SYSFW)
struct udevice *dev;
int ret;
#endif
/*
* Cannot delay this further as there is a chance that
* K3_BOOT_PARAM_TABLE_INDEX can be over written by SPL MALLOC section.
*/
store_boot_info_from_rom();
/* Make all control module registers accessible */
ctrl_mmr_unlock();
#ifdef CONFIG_CPU_V7R
disable_linefill_optimization();
setup_k3_mpu_regions();
#endif
/* Init DM early */
spl_early_init();
#ifdef CONFIG_K3_LOAD_SYSFW
/*
* Process pinctrl for the serial0 a.k.a. MCU_UART0 module and continue
* regardless of the result of pinctrl. Do this without probing the
* device, but instead by searching the device that would request the
* given sequence number if probed. The UART will be used by the system
* firmware (SYSFW) image for various purposes and SYSFW depends on us
* to initialize its pin settings.
*/
ret = uclass_find_device_by_seq(UCLASS_SERIAL, 0, &dev);
if (!ret)
pinctrl_select_state(dev, "default");
/*
* Load, start up, and configure system controller firmware. Provide
* the U-Boot console init function to the SYSFW post-PM configuration
* callback hook, effectively switching on (or over) the console
* output.
*/
k3_sysfw_loader(is_rom_loaded_sysfw(&bootdata),
k3_mmc_stop_clock, k3_mmc_restart_clock);
/*
* Force probe of clk_k3 driver here to ensure basic default clock
* configuration is always done.
*/
if (IS_ENABLED(CONFIG_SPL_CLK_K3)) {
ret = uclass_get_device_by_driver(UCLASS_CLK,
DM_DRIVER_GET(ti_clk),
&dev);
if (ret)
panic("Failed to initialize clk-k3!\n");
}
/* Prepare console output */
preloader_console_init();
/* Disable ROM configured firewalls right after loading sysfw */
#ifdef CONFIG_TI_SECURE_DEVICE
remove_fwl_configs(cbass_hc_cfg0_fwls, ARRAY_SIZE(cbass_hc_cfg0_fwls));
remove_fwl_configs(cbass_hc0_fwls, ARRAY_SIZE(cbass_hc0_fwls));
remove_fwl_configs(cbass_rc_cfg0_fwls, ARRAY_SIZE(cbass_rc_cfg0_fwls));
remove_fwl_configs(cbass_rc0_fwls, ARRAY_SIZE(cbass_rc0_fwls));
remove_fwl_configs(infra_cbass0_fwls, ARRAY_SIZE(infra_cbass0_fwls));
remove_fwl_configs(mcu_cbass0_fwls, ARRAY_SIZE(mcu_cbass0_fwls));
remove_fwl_configs(wkup_cbass0_fwls, ARRAY_SIZE(wkup_cbass0_fwls));
#endif
#else
/* Prepare console output */
preloader_console_init();
#endif
/* Output System Firmware version info */
k3_sysfw_print_ver();
/* Perform EEPROM-based board detection */
if (IS_ENABLED(CONFIG_TI_I2C_BOARD_DETECT))
do_board_detect();
#if defined(CONFIG_CPU_V7R) && defined(CONFIG_K3_AVS0)
ret = uclass_get_device_by_driver(UCLASS_MISC, DM_DRIVER_GET(k3_avs),
&dev);
if (ret)
printf("AVS init failed: %d\n", ret);
#endif
#if defined(CONFIG_K3_J721E_DDRSS)
ret = uclass_get_device(UCLASS_RAM, 0, &dev);
if (ret)
panic("DRAM init failed: %d\n", ret);
#endif
spl_enable_dcache();
}
u32 spl_mmc_boot_mode(const u32 boot_device)
{
switch (boot_device) {
case BOOT_DEVICE_MMC1:
return MMCSD_MODE_EMMCBOOT;
case BOOT_DEVICE_MMC2:
return MMCSD_MODE_FS;
default:
return MMCSD_MODE_RAW;
}
}
static u32 __get_backup_bootmedia(u32 main_devstat)
{
u32 bkup_boot = (main_devstat & MAIN_DEVSTAT_BKUP_BOOTMODE_MASK) >>
MAIN_DEVSTAT_BKUP_BOOTMODE_SHIFT;
switch (bkup_boot) {
case BACKUP_BOOT_DEVICE_USB:
return BOOT_DEVICE_DFU;
case BACKUP_BOOT_DEVICE_UART:
return BOOT_DEVICE_UART;
case BACKUP_BOOT_DEVICE_ETHERNET:
return BOOT_DEVICE_ETHERNET;
case BACKUP_BOOT_DEVICE_MMC2:
{
u32 port = (main_devstat & MAIN_DEVSTAT_BKUP_MMC_PORT_MASK) >>
MAIN_DEVSTAT_BKUP_MMC_PORT_SHIFT;
if (port == 0x0)
return BOOT_DEVICE_MMC1;
return BOOT_DEVICE_MMC2;
}
case BACKUP_BOOT_DEVICE_SPI:
return BOOT_DEVICE_SPI;
case BACKUP_BOOT_DEVICE_I2C:
return BOOT_DEVICE_I2C;
}
return BOOT_DEVICE_RAM;
}
static u32 __get_primary_bootmedia(u32 main_devstat, u32 wkup_devstat)
{
u32 bootmode = (wkup_devstat & WKUP_DEVSTAT_PRIMARY_BOOTMODE_MASK) >>
WKUP_DEVSTAT_PRIMARY_BOOTMODE_SHIFT;
bootmode |= (main_devstat & MAIN_DEVSTAT_BOOT_MODE_B_MASK) <<
BOOT_MODE_B_SHIFT;
if (bootmode == BOOT_DEVICE_OSPI || bootmode == BOOT_DEVICE_QSPI)
bootmode = BOOT_DEVICE_SPI;
if (bootmode == BOOT_DEVICE_MMC2) {
u32 port = (main_devstat &
MAIN_DEVSTAT_PRIM_BOOTMODE_MMC_PORT_MASK) >>
MAIN_DEVSTAT_PRIM_BOOTMODE_PORT_SHIFT;
if (port == 0x0)
bootmode = BOOT_DEVICE_MMC1;
}
return bootmode;
}
u32 spl_boot_device(void)
{
u32 wkup_devstat = readl(CTRLMMR_WKUP_DEVSTAT);
u32 main_devstat;
if (wkup_devstat & WKUP_DEVSTAT_MCU_OMLY_MASK) {
printf("ERROR: MCU only boot is not yet supported\n");
return BOOT_DEVICE_RAM;
}
/* MAIN CTRL MMR can only be read if MCU ONLY is 0 */
main_devstat = readl(CTRLMMR_MAIN_DEVSTAT);
if (bootindex == K3_PRIMARY_BOOTMODE)
return __get_primary_bootmedia(main_devstat, wkup_devstat);
else
return __get_backup_bootmedia(main_devstat);
}
#endif
#ifdef CONFIG_SYS_K3_SPL_ATF
#define J721E_DEV_MCU_RTI0 262
#define J721E_DEV_MCU_RTI1 263
#define J721E_DEV_MCU_ARMSS0_CPU0 250
#define J721E_DEV_MCU_ARMSS0_CPU1 251
void release_resources_for_core_shutdown(void)
{
struct ti_sci_handle *ti_sci;
struct ti_sci_dev_ops *dev_ops;
struct ti_sci_proc_ops *proc_ops;
int ret;
u32 i;
const u32 put_device_ids[] = {
J721E_DEV_MCU_RTI0,
J721E_DEV_MCU_RTI1,
};
ti_sci = get_ti_sci_handle();
dev_ops = &ti_sci->ops.dev_ops;
proc_ops = &ti_sci->ops.proc_ops;
/* Iterate through list of devices to put (shutdown) */
for (i = 0; i < ARRAY_SIZE(put_device_ids); i++) {
u32 id = put_device_ids[i];
ret = dev_ops->put_device(ti_sci, id);
if (ret)
panic("Failed to put device %u (%d)\n", id, ret);
}
const u32 put_core_ids[] = {
J721E_DEV_MCU_ARMSS0_CPU1,
J721E_DEV_MCU_ARMSS0_CPU0, /* Handle CPU0 after CPU1 */
};
/* Iterate through list of cores to put (shutdown) */
for (i = 0; i < ARRAY_SIZE(put_core_ids); i++) {
u32 id = put_core_ids[i];
/*
* Queue up the core shutdown request. Note that this call
* needs to be followed up by an actual invocation of an WFE
* or WFI CPU instruction.
*/
ret = proc_ops->proc_shutdown_no_wait(ti_sci, id);
if (ret)
panic("Failed sending core %u shutdown message (%d)\n",
id, ret);
}
}
#endif
#ifdef CONFIG_SYS_K3_SPL_ATF
void start_non_linux_remote_cores(void)
{
int size = 0, ret;
u32 loadaddr = 0;
if (!soc_is_j721e())
return;
size = load_firmware("name_mainr5f0_0fw", "addr_mainr5f0_0load",
&loadaddr);
if (size <= 0)
goto err_load;
/* assuming remoteproc 2 is aliased for the needed remotecore */
ret = rproc_load(2, loadaddr, size);
if (ret) {
printf("Firmware failed to start on rproc (%d)\n", ret);
goto err_load;
}
ret = rproc_start(2);
if (ret) {
printf("Firmware init failed on rproc (%d)\n", ret);
goto err_load;
}
printf("Remoteproc 2 started successfully\n");
return;
err_load:
rproc_reset(2);
}
#endif
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