southbridge.h

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/* SPDX-License-Identifier: GPL-2.0-only */
 
/* TODO: Check if this is still correct */
 
#ifndef AMD_SABRINA_SOUTHBRIDGE_H
#define AMD_SABRINA_SOUTHBRIDGE_H
 
#include <soc/iomap.h>
 
/* Power management registers:  0xfed80300 or index/data at IO 0xcd6/cd7 */
#define PM_ISACONTROL                   0x04
#define   ABCLKGATEEN                   BIT(16)
#define PM_PCI_CTRL                     0x08
#define   FORCE_SLPSTATE_RETRY          BIT(25)
#define PWR_RESET_CFG                   0x10
#define   TOGGLE_ALL_PWR_GOOD           (1 << 1)
#define PM_SERIRQ_CONF                  0x54
#define   PM_SERIRQ_NUM_BITS_17         0x0000
#define   PM_SERIRQ_NUM_BITS_18         0x0004
#define   PM_SERIRQ_NUM_BITS_19         0x0008
#define   PM_SERIRQ_NUM_BITS_20         0x000c
#define   PM_SERIRQ_NUM_BITS_21         0x0010
#define   PM_SERIRQ_NUM_BITS_22         0x0014
#define   PM_SERIRQ_NUM_BITS_23         0x0018
#define   PM_SERIRQ_NUM_BITS_24         0x001c
#define   PM_SERIRQ_MODE                BIT(6)
#define   PM_SERIRQ_ENABLE              BIT(7)
#define PM_EVT_BLK                      0x60
#define   WAK_STS                       BIT(15) /*AcpiPmEvtBlkx00 Pm1Status */
#define   PCIEXPWAK_STS                 BIT(14)
#define   RTC_STS                       BIT(10)
#define   PWRBTN_STS                    BIT(8)
#define   GBL_STS                       BIT(5)
#define   BM_STS                        BIT(4)
#define   TIMER_STS                     BIT(0)
#define   PCIEXPWAK_DIS                 BIT(14) /*AcpiPmEvtBlkx02 Pm1Enable */
#define   RTC_EN                        BIT(10)
#define   PWRBTN_EN                     BIT(8)
#define   GBL_EN                        BIT(5)
#define   TIMER_STS                     BIT(0)
#define PM1_CNT_BLK                     0x62
#define PM_TMR_BLK                      0x64
#define PM_GPE0_BLK                     0x68
#define PM_ACPI_SMI_CMD                 0x6a
#define PM_ACPI_CONF                    0x74
#define   PM_ACPI_DECODE_STD            BIT(0)
#define   PM_ACPI_GLOBAL_EN             BIT(1)
#define   PM_ACPI_RTC_EN_EN             BIT(2)
#define   PM_ACPI_SLPBTN_EN_EN          BIT(3)
#define   PM_ACPI_TIMER_EN_EN           BIT(4)
#define   PM_ACPI_MASK_ARB_DIS          BIT(6)
#define   PM_ACPI_BIOS_RLS              BIT(7)
#define   PM_ACPI_PWRBTNEN_EN           BIT(8)
#define   PM_ACPI_REDUCED_HW_EN         BIT(9)
#define   PM_ACPI_S5_LPC_PIN_MODE_SEL   BIT(10)
#define   PM_ACPI_S5_LPC_PIN_MODE       BIT(11)
#define   PM_ACPI_LPC_RST_DIS           BIT(12)
#define   PM_ACPI_SEL_PWRGD_PAD         BIT(13)
#define   PM_ACPI_SEL_SMU_THERMTRIP     BIT(14)
#define   PM_ACPI_SW_S5PWRMUX_OVRD_N    BIT(15)
#define   PM_ACPI_SW_S5PWRMUX           BIT(16)
#define   PM_ACPI_EN_SHUTDOWN_MSG       BIT(17)
#define   PM_ACPI_EN_SYNC_FLOOD         BIT(18)
#define   PM_ACPI_FORCE_SPIUSEPIN_0     BIT(19)
#define   PM_ACPI_EN_DF_INTRWAKE        BIT(20)
#define   PM_ACPI_MASK_USB_S5_RST       BIT(21)
#define   PM_ACPI_USE_RSMU_RESET        BIT(22)
#define   PM_ACPI_RST_USB_S5            BIT(23)
#define   PM_ACPI_BLOCK_PCIE_PME        BIT(24)
#define   PM_ACPI_PCIE_WAK_MASK         BIT(25)
#define   PM_ACPI_PCIE_WAK_INTR_DIS     BIT(26)
#define   PM_ACPI_WAKE_AS_GEVENT        BIT(27)
#define   PM_ACPI_NB_PME_GEVENT         BIT(28)
#define   PM_ACPI_RTC_WAKE_EN           BIT(29)
#define   PM_ACPI_USE_GATED_ALINK_CLK   BIT(30)
#define   PM_ACPI_DELAY_GPP_OFF_TIME    BIT(31)
#define PM_SPI_PAD_PU_PD                0x90
#define PM_LPC_GATING                   0xec
#define   PM_LPC_AB_NO_BYPASS_EN        BIT(2)
#define   PM_LPC_A20_EN                 BIT(1)
#define   PM_LPC_ENABLE                 BIT(0)
 
#define PM1_LIMIT                       16
#define GPE0_LIMIT                      32
#define TOTAL_BITS(a)                   (8 * sizeof(a))
 
#define FCH_LEGACY_UART_DECODE          (ALINK_AHB_ADDRESS + 0x20) /* 0xfedc0020 */
 
/* FCH MISC Registers 0xfed80e00 */
#define GPP_CLK_CNTRL                   0x00
#define   GPP_CLK0_REQ_SHIFT            0
#define   GPP_CLK1_REQ_SHIFT            2
#define   GPP_CLK4_REQ_SHIFT            4
#define   GPP_CLK2_REQ_SHIFT            6
#define   GPP_CLK3_REQ_SHIFT            8
#define   GPP_CLK5_REQ_SHIFT            10
#define   GPP_CLK6_REQ_SHIFT            12
#define     GPP_CLK_OUTPUT_COUNT        7
#define   GPP_CLK_REQ_MASK(clk_shift)   (0x3 << (clk_shift))
#define   GPP_CLK_REQ_ON(clk_shift)     (0x3 << (clk_shift))
#define   GPP_CLK_REQ_EXT(clk_shift)    (0x1 << (clk_shift))
#define   GPP_CLK_REQ_OFF(clk_shift)    (0x0 << (clk_shift))
 
#define MISC_CLKGATEDCNTL               0x2c
#define   ALINKCLK_GATEOFFEN            BIT(16)
#define   BLINKCLK_GATEOFFEN            BIT(17)
#define   XTAL_PAD_S3_TURNOFF_EN        BIT(20)
#define   XTAL_PAD_S5_TURNOFF_EN        BIT(21)
#define MISC_CGPLL_CONFIGURATION0       0x30
#define   USB_PHY_CMCLK_S3_DIS          BIT(8)
#define   USB_PHY_CMCLK_S0I3_DIS        BIT(9)
#define   USB_PHY_CMCLK_S5_DIS          BIT(10)
#define MISC_CLK_CNTL0                  0x40 /* named MISC_CLK_CNTL1 on Picasso */
#define   BP_X48M0_S0I3_DIS             BIT(4)
#define   BP_X48M0_OUTPUT_EN            BIT(2) /* 1=En, unlike Hudson, Kern */
 
void fch_pre_init(void);
void fch_early_init(void);
void fch_init(void *chip_info);
void fch_final(void *chip_info);
 
void enable_aoac_devices(void);
void wait_for_aoac_enabled(unsigned int dev);
 
#endif /* AMD_SABRINA_SOUTHBRIDGE_H */