84 lines
3.3 KiB
C
84 lines
3.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Serial IO defintiions (taken from coreboot file of same name)
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*
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* Copyright 2019 Google LLC
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*/
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#ifndef __ARCH_BROADWELL_SERIALIO_H_
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#define __ARCH_BROADWELL_SERIALIO_H_
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/* Serial IO IOBP Registers */
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#include <linux/bitops.h>
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#define SIO_IOBP_PORTCTRL0 0xcb000000 /* SDIO D23:F0 */
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#define SIO_IOBP_PORTCTRL0_ACPI_IRQ_EN BIT(5)
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#define SIO_IOBP_PORTCTRL0_PCI_CONF_DIS BIT(4)
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#define SIO_IOBP_PORTCTRL1 0xcb000014 /* SDIO D23:F0 */
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#define SIO_IOBP_PORTCTRL1_SNOOP_SELECT(x) (((x) & 3) << 13)
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#define SIO_IOBP_GPIODF 0xcb000154
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#define SIO_IOBP_GPIODF_SDIO_IDLE_DET_EN BIT(4)
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#define SIO_IOBP_GPIODF_DMA_IDLE_DET_EN BIT(3)
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#define SIO_IOBP_GPIODF_UART_IDLE_DET_EN BIT(2)
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#define SIO_IOBP_GPIODF_I2C_IDLE_DET_EN BIT(1)
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#define SIO_IOBP_GPIODF_SPI_IDLE_DET_EN BIT(0)
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#define SIO_IOBP_GPIODF_UART0_BYTE_ACCESS BIT(10)
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#define SIO_IOBP_GPIODF_UART1_BYTE_ACCESS BIT(11)
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#define SIO_IOBP_PORTCTRL2 0xcb000240 /* DMA D21:F0 */
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#define SIO_IOBP_PORTCTRL3 0xcb000248 /* I2C0 D21:F1 */
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#define SIO_IOBP_PORTCTRL4 0xcb000250 /* I2C1 D21:F2 */
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#define SIO_IOBP_PORTCTRL5 0xcb000258 /* SPI0 D21:F3 */
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#define SIO_IOBP_PORTCTRL6 0xcb000260 /* SPI1 D21:F4 */
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#define SIO_IOBP_PORTCTRL7 0xcb000268 /* UART0 D21:F5 */
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#define SIO_IOBP_PORTCTRL8 0xcb000270 /* UART1 D21:F6 */
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#define SIO_IOBP_PORTCTRLX(x) (0xcb000240 + ((x) * 8))
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/* PORTCTRL 2-8 have the same layout */
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#define SIO_IOBP_PORTCTRL_ACPI_IRQ_EN BIT(21)
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#define SIO_IOBP_PORTCTRL_PCI_CONF_DIS BIT(20)
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#define SIO_IOBP_PORTCTRL_SNOOP_SELECT(x) (((x) & 3) << 18)
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#define SIO_IOBP_PORTCTRL_INT_PIN(x) (((x) & 0xf) << 2)
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#define SIO_IOBP_PORTCTRL_PM_CAP_PRSNT BIT(1)
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#define SIO_IOBP_FUNCDIS0 0xce00aa07 /* DMA D21:F0 */
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#define SIO_IOBP_FUNCDIS1 0xce00aa47 /* I2C0 D21:F1 */
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#define SIO_IOBP_FUNCDIS2 0xce00aa87 /* I2C1 D21:F2 */
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#define SIO_IOBP_FUNCDIS3 0xce00aac7 /* SPI0 D21:F3 */
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#define SIO_IOBP_FUNCDIS4 0xce00ab07 /* SPI1 D21:F4 */
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#define SIO_IOBP_FUNCDIS5 0xce00ab47 /* UART0 D21:F5 */
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#define SIO_IOBP_FUNCDIS6 0xce00ab87 /* UART1 D21:F6 */
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#define SIO_IOBP_FUNCDIS7 0xce00ae07 /* SDIO D23:F0 */
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#define SIO_IOBP_FUNCDIS_DIS BIT(8)
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/* Serial IO Devices */
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#define SIO_ID_SDMA 0 /* D21:F0 */
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#define SIO_ID_I2C0 1 /* D21:F1 */
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#define SIO_ID_I2C1 2 /* D21:F2 */
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#define SIO_ID_SPI0 3 /* D21:F3 */
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#define SIO_ID_SPI1 4 /* D21:F4 */
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#define SIO_ID_UART0 5 /* D21:F5 */
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#define SIO_ID_UART1 6 /* D21:F6 */
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#define SIO_ID_SDIO 7 /* D23:F0 */
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#define SIO_REG_PPR_CLOCK 0x800
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#define SIO_REG_PPR_CLOCK_EN BIT(0)
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#define SIO_REG_PPR_CLOCK_UPDATE BIT(31)
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#define SIO_REG_PPR_CLOCK_M_DIV 0x25a
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#define SIO_REG_PPR_CLOCK_N_DIV 0x7fff
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#define SIO_REG_PPR_RST 0x804
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#define SIO_REG_PPR_RST_ASSERT 0x3
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#define SIO_REG_PPR_GEN 0x808
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#define SIO_REG_PPR_GEN_LTR_MODE_MASK BIT(2)
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#define SIO_REG_PPR_GEN_VOLTAGE_MASK BIT(3)
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#define SIO_REG_PPR_GEN_VOLTAGE(x) ((x & 1) << 3)
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#define SIO_REG_AUTO_LTR 0x814
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#define SIO_REG_SDIO_PPR_GEN 0x1008
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#define SIO_REG_SDIO_PPR_SW_LTR 0x1010
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#define SIO_REG_SDIO_PPR_CMD12 0x3c
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#define SIO_REG_SDIO_PPR_CMD12_B30 BIT(30)
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#define SIO_PIN_INTA 1 /* IRQ5 in ACPI mode */
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#define SIO_PIN_INTB 2 /* IRQ6 in ACPI mode */
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#define SIO_PIN_INTC 3 /* IRQ7 in ACPI mode */
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#define SIO_PIN_INTD 4 /* IRQ13 in ACPI mode */
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#endif /* __ARCH_BROADWELL_SERIALIO_H_ */
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