diff options
| author | Keith Hui <buurin@gmail.com> | 2023-03-20 02:03:47 -0400 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2023-03-23 15:14:45 +0000 |
| commit | c5d6af43fb544423fa103f523ac85356b3ff3725 (patch) | |
| tree | 8cf30f87ba30b1e3334b4546dddd69dbd8b2ffdd /src/mainboard/samsung/stumpy | |
| parent | 0e1be046acaf5cfb9e2c41521270d137fa3423c5 (diff) | |
nb/intel/snb: Abolish mainboard_should_reset_usb()
Of the 13 mainboards that implement mainboard_should_reset_usb() hook,
all but one do the same: Stop MRC from resetting USB when resuming
from S3 suspend.
This hook turns out is only here to facilitate a USB reset workaround
on samsung/stumpy for an old ChromeOS kernel which is no longer needed.
Drop the workaround, the hook, and headers no longer used.
roda/rv11/early_init.c is left with no useful code after this patch,
so drop it entirely from both bootblock and romstage.
Change-Id: Ib3a5a00c0a6b1528e39435784919223d16b3914e
Signed-off-by: Keith Hui <buurin@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72496
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Diffstat (limited to 'src/mainboard/samsung/stumpy')
| -rw-r--r-- | src/mainboard/samsung/stumpy/cmos.layout | 3 | ||||
| -rw-r--r-- | src/mainboard/samsung/stumpy/early_init.c | 34 |
2 files changed, 0 insertions, 37 deletions
diff --git a/src/mainboard/samsung/stumpy/cmos.layout b/src/mainboard/samsung/stumpy/cmos.layout index f1fb849f68..1f2e8d5eee 100644 --- a/src/mainboard/samsung/stumpy/cmos.layout +++ b/src/mainboard/samsung/stumpy/cmos.layout @@ -15,9 +15,6 @@ entries # coreboot config options: console 395 4 e 6 debug_level -# Stumpy USB reset workaround disable -400 8 r 0 stumpy_usb_reset_disable - # coreboot config options: southbridge 408 1 e 1 nmi 409 2 e 7 power_on_after_fail diff --git a/src/mainboard/samsung/stumpy/early_init.c b/src/mainboard/samsung/stumpy/early_init.c index 97f656af4d..14fc2528d9 100644 --- a/src/mainboard/samsung/stumpy/early_init.c +++ b/src/mainboard/samsung/stumpy/early_init.c @@ -15,15 +15,6 @@ #include <southbridge/intel/common/gpio.h> #include <superio/smsc/lpc47n207/lpc47n207.h> -/* Stumpy USB Reset Disable defined in cmos.layout */ -#if CONFIG(USE_OPTION_TABLE) -#include "option_table.h" -#define CMOS_USB_RESET_DISABLE (CMOS_VSTART_stumpy_usb_reset_disable >> 3) -#else -#define CMOS_USB_RESET_DISABLE (400 >> 3) -#endif -#define USB_RESET_DISABLE_MAGIC (0xdd) /* Disable if set to this */ - #define SUPERIO_DEV PNP_DEV(0x2e, 0) #define SERIAL_DEV PNP_DEV(0x2e, IT8772F_SP1) #define GPIO_DEV PNP_DEV(0x2e, IT8772F_GPIO) @@ -164,31 +155,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = { { 1, 0, 5 }, /* P13: Back port (OC5) */ }; -int mainboard_should_reset_usb(int s3resume) -{ - if (s3resume) { - /* - * For Stumpy the back USB ports are reset on resume - * so default to resetting the controller to make the - * kernel happy. There is a CMOS flag to disable the - * controller reset in case the kernel can tolerate - * the device power loss better in the future. - */ - u8 magic = cmos_read(CMOS_USB_RESET_DISABLE); - if (magic == USB_RESET_DISABLE_MAGIC) { - printk(BIOS_DEBUG, "USB Controller Reset Disabled\n"); - return 0; - } else { - printk(BIOS_DEBUG, "USB Controller Reset Enabled\n"); - return 1; - } - } else { - /* Ensure USB reset on resume is enabled at boot */ - cmos_write(0, CMOS_USB_RESET_DISABLE); - return 1; - } -} - void bootblock_mainboard_early_init(void) { if (CONFIG(DRIVERS_UART_8250IO)) |