Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Add support for reset command on VisionFive platform #36

Open
wants to merge 1 commit into
base: JH7100_VisionFive_devel
Choose a base branch
from
Open

Add support for reset command on VisionFive platform #36

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
45 changes: 45 additions & 0 deletions board/starfive/jh7100/jh7100.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
#include <netdev.h>
#include <phy_interface.h>
#include <flash.h>
#include <i2c.h>

#include <asm/arch/io.h>
#include <asm/arch/global_reg.h>
Expand Down Expand Up @@ -1533,3 +1534,47 @@ int board_init(void)

return ret;
}

/*
* Platform reset via TPS65086 PMIC
*/

#define TPS65086_FORCESHUTDN 0x91
#define TPS65086_I2C_ADDR 0x5e
#define TPS65086_I2C_BUS 0

void reset_misc(void)
{
u_char one = 1;
struct udevice *dev;
struct udevice *bus;
struct dm_i2c_chip *i2c_chip;
int ret;

ret = uclass_get_device_by_seq(UCLASS_I2C, TPS65086_I2C_BUS, &bus);
if (ret) {
debug("%s: No bus %d\n", __func__, TPS65086_I2C_BUS);
return;
}

ret = i2c_get_chip(bus, TPS65086_I2C_ADDR, 1, &dev);
if (!ret)
ret = i2c_set_chip_offset_len(dev, 1);
if (ret) {
printf("Error writing the chip: %d", ret);
return;
}

i2c_chip = dev_get_parent_plat(dev);
if (!i2c_chip){
printf("Error writing the chip: %d", ret);
return;
}

i2c_chip->flags &= ~DM_I2C_CHIP_WR_ADDRESS;
ret = dm_i2c_write(dev, TPS65086_FORCESHUTDN, &one, 1);
if (ret) {
printf("Error writing the chip: %d", ret);
return;
}
}