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armv7R: K3: j721e: Load SYSFW binary and config from boot media

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Use the System Firmware (SYSFW) loader framework to load and start
the SYSFW as part of the J721E early initialization sequence. While
at it also initialize the MCU_UART0 pinmux as it is used by SYSFW
to print diagnostic messages.

Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
This commit is contained in:
Andreas Dannenberg 2019-06-13 10:29:47 +05:30 committed by Tom Rini
parent 9c0ff866b3
commit 9d1303b38b
1 changed files with 30 additions and 0 deletions
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30
arch/arm/mach-k3/j721e_init.c
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@ -11,9 +11,13 @@
#include <asm/io.h> #include <asm/io.h>
#include <asm/armv7_mpu.h> #include <asm/armv7_mpu.h>
#include <asm/arch/hardware.h> #include <asm/arch/hardware.h>
#include <asm/arch/sysfw-loader.h>
#include "common.h" #include "common.h"
#include <asm/arch/sys_proto.h> #include <asm/arch/sys_proto.h>
#include <linux/soc/ti/ti_sci_protocol.h> #include <linux/soc/ti/ti_sci_protocol.h>
#include <dm.h>
#include <dm/uclass-internal.h>
#include <dm/pinctrl.h>
#ifdef CONFIG_SPL_BUILD #ifdef CONFIG_SPL_BUILD
static void mmr_unlock(u32 base, u32 partition) static void mmr_unlock(u32 base, u32 partition)
@ -69,6 +73,10 @@ static void store_boot_index_from_rom(void)
void board_init_f(ulong dummy) void board_init_f(ulong dummy)
{ {
#if defined(CONFIG_K3_LOAD_SYSFW)
struct udevice *dev;
int ret;
#endif
/* /*
* Cannot delay this further as there is a chance that * Cannot delay this further as there is a chance that
* K3_BOOT_PARAM_TABLE_INDEX can be over written by SPL MALLOC section. * K3_BOOT_PARAM_TABLE_INDEX can be over written by SPL MALLOC section.
@ -85,8 +93,30 @@ void board_init_f(ulong dummy)
/* Init DM early */ /* Init DM early */
spl_early_init(); 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, true, &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(preloader_console_init);
#else
/* Prepare console output */ /* Prepare console output */
preloader_console_init(); preloader_console_init();
#endif
} }
u32 spl_boot_mode(const u32 boot_device) u32 spl_boot_mode(const u32 boot_device)