sch5545.h

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/* SPDX-License-Identifier: GPL-2.0-only */
 
/*
 * Based on SMSC SCH5627 datahseet:
 * http://pdf.datasheetcatalog.com/datasheets/microchip/00001996A.pdf
 */
 
#ifndef SUPERIO_SCH_5545_H
#define SUPERIO_SCH_5545_H
 
/* LPC I/O space */
#define SCH5545_RUNTIME_REG_BASE                0x0a00
#define SCH5545_EMI_BASE                        0x0a40
 
/* logical devices */
#define SCH5545_LDN_EMI                         0x00
#define SCH5545_LDN_KBC                         0x01
#define SCH5545_LDN_UART1                       0x07
#define SCH5545_LDN_UART2                       0x08
#define SCH5545_LDN_RR                          0x0a    /* Runtime Registers */
#define SCH5545_LDN_FDC                         0x0b
#define SCH5545_LDN_LPC                         0x0c    /* LPC Interface */
#define SCH5545_LDN_PP                          0x11
#define SCH5545_LDN_GCONF                       0x3f    /* Global Config */
 
/* KBC config registers */
#define SCH5545_KRST_GA20                       0xf0
#define   SCH5545_PORT92_EN                     (1 << 2)
#define   SCH5545_KBD_INT_LATCH                 (1 << 3)
#define   SCH5545_MOUSE_INT_LATCH               (1 << 4)
#define   SCH5545_KBD_ISOLATION                 (1 << 5)
#define   SCH5545_MOUSE_ISOLATION               (1 << 6)
#define SCH5545_KEYBOARD_SELECT                 0xf1
#define   SCH5545_KBD_MOUSE_SWAP                (1 << 0)
#define SCH5545_8042_RESET                      0xf2
#define   SCH5545_8042_IN_RESET                 (1 << 0)
#define   SCH5545_8042_OUT_RESET                (0 << 0)
 
/* UART config registers */
#define SCH5545_UART_CONFIG_SELECT              0xf0
#define   SCH5545_UART_CLK_64MHZ_RO             (0 << 0)
#define   SCH5545_UART_CLK_96MHZ_PLL            (1 << 0)
#define   SCH5545_UART_POWER_VTR                (0 << 1)
#define   SCH5545_UART_POWER_VCC                (1 << 1)
#define   SCH5545_UART_NO_POLARITY_INVERT       (0 << 2)
#define   SCH5545_UART_INVERT_POLARITY          (1 << 2)
 
/* RR config registers */
#define SCH5545_SPEKEY                          0xf0
#define SCH5545_SPEKEY_WAKE_EN                  (0 << 1)
#define SCH5545_SPEKEY_WAKE_DIS                 (1 << 1)
 
/* Floppy config registers */
#define SCH5545_FDD_MODE                        0xf0
#define   SCH5545_FDD_MODE_NORMAL               (0 << 0)
#define   SCH5545_FDD_MODE_ENHANCED             (1 << 0)
#define   SCH5545_FDC_DMA_MODE_BURST            (0 << 1)
#define   SCH5545_FDC_DMA_MODE_NON_BURST        (1 << 1)
#define   SCH5545_FDD_IF_MODE_AT                (3 << 2)
#define   SCH5545_FDD_IF_MODE_PS2               (1 << 2)
#define   SCH5545_FDD_IF_MODE_MODEL30           (0 << 2)
#define   SCH5545_FDC_OUTPUT_TYPE_OPEN_DRAIN    (0 << 6)
#define   SCH5545_FDC_OUTPUT_TYPE_PUSH_PULL     (1 << 6)
#define   SCH5545_FDC_OUTPUT_CTRL_ACTIVE        (0 << 7)
#define   SCH5545_FDC_OUTPUT_CTRL_TRISTATE      (1 << 7)
#define SCH5545_FDD_OPTION                      0xf1
#define   SCH5545_FDD_FORCED_WP_INACTIVE        (0 << 0)
#define   SCH5545_FDD_FORCED_WP_ACTIVE          (1 << 0)
#define   SCH5545_FDD_DENSITY_NORMAL            (0 << 2)
#define   SCH5545_FDD_DENSITY_NORMAL_USER       (1 << 2)
#define   SCH5545_FDD_DENSITY_LOGIC_ONE         (2 << 2)
#define   SCH5545_FDD_DENSITY_LOGIC_ZERO        (3 << 2)
#define SCH5545_FDD_TYPE                        0xf2
#define SCH5545_FDD0                            0xf4
#define   SCH5545_FDD0_TYPE_SEL_DT0             (1 << 0)
#define   SCH5545_FDD0_TYPE_SEL_DT1             (1 << 1)
#define   SCH5545_FDD0_DRT_SEL_DRT0             (1 << 3)
#define   SCH5545_FDD0_USE_PRECOMPENSATION      (0 << 6)
#define   SCH5545_FDD0_NO_PRECOMPENSATION       (1 << 6)
 
/* Parallel Port config registers */
#define SCH5545_PP_INT_SELECT                   0x70
#define   SCH5545_PP_SERIRQ_CHANNEL_MASK        0xf
#define SCH5545_PP_DMA_SELECT                   0x74
#define   SCH5545_PP_DMA_CHANNEL_MASK           0x7
#define SCH5545_PP_MODE                         0xf0
#define   SCH5545_PP_MODE_PRINTER               (4 << 0)
#define   SCH5545_PP_MODE_SPP                   (0 << 0)
#define   SCH5545_PP_MODE_EPP19_SPP             (1 << 0)
#define   SCH5545_PP_MODE_EPP17_SPP             (5 << 0)
#define   SCH5545_PP_MODE_ECP                   (2 << 0)
#define   SCH5545_PP_MODE_EPP17_ECP             (3 << 0)
#define   SCH5545_PP_MODE_EPP19_ECP             (7 << 0)
#define   SCH5545_PP_ECP_FIFO_TRESH_MASK        (0xf << 3)
#define   SCH5545_PP_INT_PULSED_LOW             (1 << 7)
#define   SCH5545_PP_INT_FOLLOWS_ACK            (0 << 7)
#define SCH5545_PP_MODE2                        0xf1
#define   SCH5545_PP_TMOUT_CLEARED_ON_WRITE     (0 << 4)
#define   SCH5545_PP_TMOUT_CLEARED_ON_READ      (1 << 4)
 
/* LPC IF config registers */
#define SCH5545_IRQ_BASE                        0x40
#define SCH5545_DRQ_BASE                        0x50
/*
 * BAR registers are 4 byte
 * byte 0 0-6 mask, 7 reserved
 * byte 1 0-5 frame, 6 device, 7 valid
 * byte 2 LPC address least sig.
 * byte 3 LPC address most sig.
 */
#define SCH5545_BAR_LPC_IF                      0x60
#define SCH5545_BAR_EM_IF                       0x64
#define SCH5545_BAR_UART1                       0x68
#define SCH5545_BAR_UART2                       0x6c
#define SCH5545_BAR_RUNTIME_REG                 0x70
/* Certain SMSC parts have SPI controller LDN 0xf with BAR rgeister at 0x74 */
#define SCH5545_BAR_KBC                         0x78
#define SCH5545_BAR_FLOPPY                      0x7c
#define SCH5545_BAR_PARPORT                     0x80
 
/* IRQ <> device mappings */
#define SCH5545_IRQ_KBD                         0x01
#define SCH5545_IRQ_MOUSE                       0x81
#define SCH5545_IRQ_UART1                       0x07
#define SCH5545_IRQ_UART2                       0x08
#define SCH5545_IRQ_EMI_MAILBOX                 0x00
#define SCH5545_IRQ_EMI_IRQ_SOURCE              0x80
#define SCH5545_IRQ_RUNTIME_REG                 0x0a
#define SCH5545_IRQ_RUNTIME_REG_SMI             0x8a
#define SCH5545_IRQ_FLOPPY                      0x0b
#define SCH5545_IRQ_PARPORT                     0x11
#define SCH5545_IRQ_DISABLED                    0xff
 
/* runtime registers */
#define SCH5545_RR_PME_STS                      0x00
#define   SCH5545_GLOBAL_PME_STS                0x01
#define SCH5545_RR_PME_EN                       0x01
#define   SCH5545_GLOBAL_PME_EN                 0x01
#define SCH5545_RR_PME_STS1                     0x02
#define   SCH5545_UART2_RI_PME_STS              0x2
#define   SCH5545_UART1_RI_PME_STS              0x4
#define   SCH5545_KBD_PME_STS                   0x8
#define   SCH5545_MOUSE_PME_STS                 0x10
#define   SCH5545_SPECIFIC_KEY_PME_STS          0x20
#define SCH5545_RR_PME_STS2                     0x03
#define   SCH5545_IO_SMI_EVT_STS                0x1
#define   SCH5545_WDT_TIMEOUT_EVT_STS           0x2
#define   SCH5545_EM_EVT1_STS                   0x4
#define   SCH5545_EM_EVT2_STS                   0x8
#define   SCH5545_FW_EVT_STS                    0x10
#define   SCH5545_BAT_LOW_STS                   0x20
#define   SCH5545_INTRUDER_STS                  0x40
#define SCH5545_RR_PME_STS3                     0x04
#define   SCH5545_GPIO62_PME_STS                0x1
#define   SCH5545_GPIO54_PME_STS                0x2
#define   SCH5545_GPIO53_PME_STS                0x4
#define   SCH5545_GPIO35_PME_STS                0x8
#define   SCH5545_GPIO31_PME_STS                0x10
#define   SCH5545_GPIO25_PME_STS                0x20
#define   SCH5545_GPIO24_PME_STS                0x40
#define   SCH5545_GPIO21_PME_STS                0x80
#define SCH5545_RR_PME_EN1                      0x05
#define   SCH5545_UART2_RI_PME_EN               0x2
#define   SCH5545_UART1_RI_PME_EN               0x4
#define   SCH5545_KBD_PME_EN                    0x8
#define   SCH5545_MOUSE_PME_EN                  0x10
#define   SCH5545_SPECIFIC_KEY_PME_EN           0x20
#define SCH5545_RR_PME_EN2                      0x06
#define   SCH5545_IO_SMI_EVT_PME_EN             0x1
#define   SCH5545_WDT_EVT_PME_EN                0x2
#define   SCH5545_EM_EVT1_PME_EN                0x4
#define   SCH5545_EM_EVT2_PME_EN                0x8
#define   SCH5545_FW_EVT_PME_EN                 0x10
#define   SCH5545_BAT_LOW_PME_EN                0x20
#define   SCH5545_INTRUDER_PME_EN               0x40
#define SCH5545_RR_PME_EN3                      0x07
#define   SCH5545_GPIO62_PME_EN                 0x1
#define   SCH5545_GPIO54_PME_EN                 0x2
#define   SCH5545_GPIO53_PME_EN                 0x4
#define   SCH5545_GPIO35_PME_EN                 0x8
#define   SCH5545_GPIO31_PME_EN                 0x10
#define   SCH5545_GPIO25_PME_EN                 0x20
#define   SCH5545_GPIO24_PME_EN                 0x40
#define   SCH5545_GPIO21_PME_EN                 0x80
#define SCH5545_RR_SMI_STS                      0x10
#define   SCH5545_SMI_GLOBAL_STS                0x1
#define SCH5545_RR_SMI_EN                       0x11
#define   SCH5545_SMI_GLOBAL_EN                 0x1
#define SCH5545_RR_SMI_STS1                     0x12
#define   SCH5545_LOW_BAT_SMI_STS               0x1
#define   SCH5545_PAR_PORT_SMI_STS              0x2
#define   SCH5545_UART2_SMI_STS                 0x4
#define   SCH5545_UART1_SMI_STS                 0x8
#define   SCH5545_FLOPPY_SMI_STS                0x10
#define   SCH5545_EM_EVT1_SMI_STS               0x20
#define   SCH5545_EM_EVT2_SMI_STS               0x40
#define   SCH5545_FW_EVT_SMI_STS                0x80
#define SCH5545_RR_SMI_STS2                     0x13
#define   SCH5545_MOUSE_SMI_STS                 0x1
#define   SCH5545_KBD_SMI_STS                   0x2
#define   SCH5545_WATCHDOG_EVT_SMI_STS          0x8
#define   SCH5545_INTRUSION_SMI_STS             0x10
#define SCH5545_RR_SMI_STS3                     0x14
#define   SCH5545_GPIO62_SMI_STS                0x1
#define   SCH5545_GPIO54_SMI_STS                0x2
#define   SCH5545_GPIO53_SMI_STS                0x4
#define   SCH5545_GPIO35_SMI_STS                0x8
#define   SCH5545_GPIO31_SMI_STS                0x10
#define   SCH5545_GPIO25_SMI_STS                0x20
#define   SCH5545_GPIO24_SMI_STS                0x40
#define   SCH5545_GPIO21_SMI_STS                0x80
#define SCH5545_RR_SMI_EN1                      0x15
#define   SCH5545_LOW_BAT_SMI_EN                0x1
#define   SCH5545_PAR_PORT_SMI_EN               0x2
#define   SCH5545_UART2_SMI_EN                  0x4
#define   SCH5545_UART1_SMI_EN                  0x8
#define   SCH5545_FLOPPY_SMI_EN                 0x10
#define   SCH5545_EM_EVT1_SMI_EN                0x20
#define   SCH5545_EM_EVT2_SMI_EN                0x40
#define   SCH5545_FW_EVT_SMI_EN                 0x1
#define SCH5545_RR_SMI_EN2                      0x16
#define   SCH5545_MOUSE_SMI_EN                  0x1
#define   SCH5545_KBD_SMI_EN                    0x2
#define   SCH5545_WATCHDOG_EVT_SMI_EN           0x8
#define   SCH5545_INTRUSION_SMI_EN              0x10
#define SCH5545_RR_SMI_EN3                      0x17
#define   SCH5545_GPIO62_SMI_EN                 0x1
#define   SCH5545_GPIO54_SMI_EN                 0x2
#define   SCH5545_GPIO53_SMI_EN                 0x4
#define   SCH5545_GPIO35_SMI_EN                 0x8
#define   SCH5545_GPIO31_SMI_EN                 0x10
#define   SCH5545_GPIO25_SMI_EN                 0x20
#define   SCH5545_GPIO24_SMI_EN                 0x40
#define   SCH5545_GPIO21_SMI_EN                 0x80
#define SCH5545_RR_FORCE_DISK_CH                0x20
#define   SCH5545_FLOPPY_DISK_CHANGE            0x1
#define SCH5545_RR_FLOPPY_DR_SEL                0x21
#define   SCH5545_DR_SELECT0                    0x1
#define   SCH5545_DR_SELECT1                    0x2
#define   SCH5545_FLOPPY_PRECOMP0               0x4
#define   SCH5545_FLOPPY_PRECOMP1               0x8
#define   SCH5545_FLOPPY_PRECOMP2               0x10
#define   SCH5545_FLOPPY_PWR_DOWN               0x40
#define   SCH5545_FLOPPY_SOFT_RESET             0x80
#define SCH5545_RR_UART1_FIFO_CTRL              0x22
#define   SCH5545_UART1_FIFO_FE                 0x1
#define   SCH5545_UART1_FIFO_RFR                0x2
#define   SCH5545_UART1_FIFO_XFR                0x4
#define   SCH5545_UART1_FIFO_DMS                0x8
#define   SCH5545_UART1_FIFO_RTL                0x40
#define   SCH5545_UART1_FIFO_RTM                0x80
#define SCH5545_RR_UART2_FIFO_CTRL              0x23
#define   SCH5545_UART2_FIFO_FE                 0x1
#define   SCH5545_UART2_FIFO_RFR                0x2
#define   SCH5545_UART2_FIFO_XFR                0x4
#define   SCH5545_UART2_FIFO_DMS                0x8
#define   SCH5545_UART2_FIFO_RTL                0x40
#define   SCH5545_UART2_FIFO_RTM                0x80
#define SCH5545_RR_DEV_DISABLE                  0x24
#define   SCH5545_FLOPPY_WP                     0x1
#define   SCH5545_FLOPPY_DIS                    0x8
#define   SCH5545_UART2_DIS                     0x20
#define   SCH5545_UART1_DIS                     0x40
#define   SCH5545_PAR_PORT_DIS                  0x80
#define SCH5545_RR_LED                          0x25
#define  SCH5545_LED_BLINK_OFF                  0x0
#define  SCH5545_LED_BLINK_1HZ                  0x1
#define  SCH5545_LED_BLINK_ON                   0x3
#define  SCH5545_LED_BLINK_MASK                 0x3
#define  SCH5545_LED_COLOR_YELLOW               0x0
#define  SCH5545_LED_COLOR_GREEN                0x4
#define  SCH5545_LED_CODE_FETCH                 0x8
#define SCH5545_RR_KB_SCAN                      0x26
#define SCH5545_RR_PWRGOOD                      0x27
#define   SCH5545_PWRGOOD_DELAY                 0x1
#define   SCH5545_PWRGOOD_LOCK                  0x2
#define   SCH5545_PCIRST_OUT4_EN                0x10
#define   SCH5545_PCIRST_OUT3_EN                0x20
#define   SCH5545_PCIRST_OUT1_EN                0x40
#define   SCH5545_PCIRST_OUT2_EN                0x80
#define SCH5545_RR_GPIO_SEL                     0x28
#define SCH5545_RR_GPIO_READ                    0x29
#define SCH5545_RR_GPIO_WRITE                   0x2A
#define SCH5545_RR_FW_EVT_STS                   0x30
#define SCH5545_RR_FW_EVT_EN                    0x31
#define SCH5545_RR_PWR_REC_MODES                0x32
#define   SCH5545_PWR_SUPPLY_OFF                0x00
#define   SCH5545_PWR_SUPPLY_ON                 0x80
#define SCH5545_RR_INTRUDER                     0x34
#define   SCH5545_INTRUSION_EDGE_STS            0x1
#define   SCH5545_INTRUDER_PIN_STS              0x2
 
void sch5545_early_init(unsigned int port);
void sch5545_enable_uart(unsigned int port, unsigned int uart_no);
void sch5545_set_led(unsigned int runtime_reg_base, unsigned int color, uint16_t blink);
int sch5545_get_gpio(uint8_t sio_port, uint8_t gpio);
 
#endif /* SUPERIO_SCH_5545_H */