diff options
| -rw-r--r-- | src/superio/smsc/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/superio/smsc/ece5048/Kconfig | 4 | ||||
| -rw-r--r-- | src/superio/smsc/ece5048/Makefile.inc | 4 | ||||
| -rw-r--r-- | src/superio/smsc/ece5048/ece5048.h | 12 | ||||
| -rw-r--r-- | src/superio/smsc/ece5048/ece5048_early_init.c | 62 |
5 files changed, 83 insertions, 0 deletions
diff --git a/src/superio/smsc/Makefile.inc b/src/superio/smsc/Makefile.inc index 9442a9efde..504ed3db33 100644 --- a/src/superio/smsc/Makefile.inc +++ b/src/superio/smsc/Makefile.inc @@ -17,3 +17,4 @@ subdirs-y += smscsuperio subdirs-y += sio1036 subdirs-y += sch4037 subdirs-y += sch5545 +subdirs-y += ece5048 diff --git a/src/superio/smsc/ece5048/Kconfig b/src/superio/smsc/ece5048/Kconfig new file mode 100644 index 0000000000..7ee3df6e57 --- /dev/null +++ b/src/superio/smsc/ece5048/Kconfig @@ -0,0 +1,4 @@ +## SPDX-License-Identifier: GPL-2.0-only + +config SUPERIO_SMSC_ECE5048 + bool diff --git a/src/superio/smsc/ece5048/Makefile.inc b/src/superio/smsc/ece5048/Makefile.inc new file mode 100644 index 0000000000..385cdeac49 --- /dev/null +++ b/src/superio/smsc/ece5048/Makefile.inc @@ -0,0 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only + +bootblock-$(CONFIG_SUPERIO_SMSC_ECE5048) += ece5048_early_init.c +romstage-$(CONFIG_SUPERIO_SMSC_ECE5048) += ece5048_early_init.c diff --git a/src/superio/smsc/ece5048/ece5048.h b/src/superio/smsc/ece5048/ece5048.h new file mode 100644 index 0000000000..cff612221b --- /dev/null +++ b/src/superio/smsc/ece5048/ece5048.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __SUPERIO_ECE5048_ECE5048_H__ +#define __SUPERIO_ECE5048_ECE5048_H__ + +#include <device/pnp_type.h> +#include <stdint.h> + +void ece5048_early_init(u16 port); +void ece5048_enable_serial(pnp_devfn_t dev, u16 iobase); + +#endif diff --git a/src/superio/smsc/ece5048/ece5048_early_init.c b/src/superio/smsc/ece5048/ece5048_early_init.c new file mode 100644 index 0000000000..8b90d25262 --- /dev/null +++ b/src/superio/smsc/ece5048/ece5048_early_init.c @@ -0,0 +1,62 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <arch/io.h> +#include <device/pnp.h> +#include <device/pnp_def.h> +#include <device/pnp_ops.h> +#include <superio/smsc/ece5048/ece5048.h> + +static void pnp_enter_conf_state(pnp_devfn_t dev) +{ + unsigned int port = dev >> 8; + outb(0x55, port); +} + +static void pnp_exit_conf_state(pnp_devfn_t dev) +{ + unsigned int port = dev >> 8; + outb(0xaa, port); +} + +// both E6230 and E7240 uses port 0x94e +void ece5048_early_init(u16 port) +{ + pnp_devfn_t dev; + + outb(0x55, port); + outb(0x55, port); + + pnp_write_config(port << 8, 0x22, 0x10); + pnp_write_config(port << 8, 0x23, 0x10); + pnp_write_config(port << 8, 0x24, 4); + pnp_write_config(port << 8, 0x25, 4); + + dev = PNP_DEV(port, 3); + pnp_set_logical_device(dev); + pnp_set_enable(dev, 0); + + dev = PNP_DEV(port, 12); + pnp_set_logical_device(dev); + pnp_set_enable(dev, 1); + pnp_set_iobase(dev, PNP_IDX_IO0, 0x928); // is it for all laptops? + + outb(0xaa, port); +} + +/* FIXME: XXX this should be used in ramstage/smm? */ +/* TODO: use 4e/4f in ACPI? */ +void ece5048_enable_serial(pnp_devfn_t dev, u16 iobase) +{ + pnp_enter_conf_state(dev); + + pnp_write_config(dev, 0x22, pnp_read_config(dev, 0x22) | 0x10); + pnp_write_config(dev, 0x23, pnp_read_config(dev, 0x23) | 0x10); + + pnp_set_logical_device(dev); + + pnp_set_enable(dev, 1); + pnp_set_iobase(dev, PNP_IDX_IO0, iobase); + pnp_set_irq(dev, PNP_IDX_IRQ0, 4); + + pnp_exit_conf_state(dev); +} |