/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _PPC_BOOT_DCR_H_ #define _PPC_BOOT_DCR_H_ #define mfdcr(rn) \ ({ \ unsigned long rval; \ asm volatile("mfdcr %0,%1" : "=r"(rval) : "i"(rn)); \ rval; \ }) #define mtdcr(rn, val) \ asm volatile("mtdcr %0,%1" : : "i"(rn), "r"(val)) #define mfdcrx(rn) \ ({ \ unsigned long rval; \ asm volatile("mfdcrx %0,%1" : "=r"(rval) : "r"(rn)); \ rval; \ }) #define mtdcrx(rn, val) \ ({ \ asm volatile("mtdcrx %0,%1" : : "r"(rn), "r" (val)); \ }) /* 440GP/440GX SDRAM controller DCRs */ #define DCRN_SDRAM0_CFGADDR 0x010 #define DCRN_SDRAM0_CFGDATA 0x011 #define SDRAM0_READ(offset) ({\ mtdcr(DCRN_SDRAM0_CFGADDR, offset); \ mfdcr(DCRN_SDRAM0_CFGDATA); }) #define SDRAM0_WRITE(offset, data) ({\ mtdcr(DCRN_SDRAM0_CFGADDR, offset); \ mtdcr(DCRN_SDRAM0_CFGDATA, data); }) #define SDRAM0_B0CR 0x40 #define SDRAM0_B1CR 0x44 #define SDRAM0_B2CR 0x48 #define SDRAM0_B3CR 0x4c static const unsigned long sdram_bxcr[] = { SDRAM0_B0CR, SDRAM0_B1CR, SDRAM0_B2CR, SDRAM0_B3CR }; #define SDRAM_CONFIG_BANK_ENABLE 0x00000001 #define SDRAM_CONFIG_SIZE_MASK 0x000e0000 #define SDRAM_CONFIG_BANK_SIZE(reg) \ (0x00400000 << ((reg & SDRAM_CONFIG_SIZE_MASK) >> 17)) /* 440GP External Bus Controller (EBC) */ #define DCRN_EBC0_CFGADDR 0x012 #define DCRN_EBC0_CFGDATA 0x013 #define EBC_NUM_BANKS 8 #define EBC_B0CR 0x00 #define EBC_B1CR 0x01 #define EBC_B2CR 0x02 #define EBC_B3CR 0x03 #define EBC_B4CR 0x04 #define EBC_B5CR 0x05 #define EBC_B6CR 0x06 #define EBC_B7CR 0x07 #define EBC_BXCR(n) (n) #define EBC_BXCR_BAS 0xfff00000 #define EBC_BXCR_BS 0x000e0000 #define EBC_BXCR_BANK_SIZE(reg) \ (0x100000 << (((reg) & EBC_BXCR_BS) >> 17)) #define EBC_BXCR_BU 0x00018000 #define EBC_BXCR_BU_OFF 0x00000000 #define EBC_BXCR_BU_RO 0x00008000 #define EBC_BXCR_BU_WO 0x00010000 #define EBC_BXCR_BU_RW 0x00018000 #define EBC_BXCR_BW 0x00006000 #define EBC_B0AP 0x10 #define EBC_B1AP 0x11 #define EBC_B2AP 0x12 #define EBC_B3AP 0x13 #define EBC_B4AP 0x14 #define EBC_B5AP 0x15 #define EBC_B6AP 0x16 #define EBC_B7AP 0x17 #define EBC_BXAP(n) (0x10+(n)) #define EBC_BEAR 0x20 #define EBC_BESR 0x21 #define EBC_CFG 0x23 #define EBC_CID 0x24 /* 440GP Clock, PM, chip control */ #define DCRN_CPC0_SR 0x0b0 #define DCRN_CPC0_ER 0x0b1 #define DCRN_CPC0_FR 0x0b2 #define DCRN_CPC0_SYS0 0x0e0 #define CPC0_SYS0_TUNE 0xffc00000 #define CPC0_SYS0_FBDV_MASK 0x003c0000 #define CPC0_SYS0_FWDVA_MASK 0x00038000 #define CPC0_SYS0_FWDVB_MASK 0x00007000 #define CPC0_SYS0_OPDV_MASK 0x00000c00 #define CPC0_SYS0_EPDV_MASK 0x00000300 /* Helper macros to compute the actual clock divider values from the * encodings in the CPC0 register */ #define CPC0_SYS0_FBDV(reg) \ ((((((reg) & CPC0_SYS0_FBDV_MASK) >> 18) - 1) & 0xf) + 1) #define CPC0_SYS0_FWDVA(reg) \ (8 - (((reg) & CPC0_SYS0_FWDVA_MASK) >> 15)) #define CPC0_SYS0_FWDVB(reg) \ (8 - (((reg) & CPC0_SYS0_FWDVB_MASK) >> 12)) #define CPC0_SYS0_OPDV(reg) \ ((((reg) & CPC0_SYS0_OPDV_MASK) >> 10) + 1) #define CPC0_SYS0_EPDV(reg) \ ((((reg) & CPC0_SYS0_EPDV_MASK) >> 8) + 1) #define CPC0_SYS0_EXTSL 0x00000080 #define CPC0_SYS0_RW_MASK 0x00000060 #define CPC0_SYS0_RL 0x00000010 #define CPC0_SYS0_ZMIISL_MASK 0x0000000c #define CPC0_SYS0_BYPASS 0x00000002 #define CPC0_SYS0_NTO1 0x00000001 #define DCRN_CPC0_SYS1 0x0e1 #define DCRN_CPC0_CUST0 0x0e2 #define DCRN_CPC0_CUST1 0x0e3 #define DCRN_CPC0_STRP0 0x0e4 #define DCRN_CPC0_STRP1 0x0e5 #define DCRN_CPC0_STRP2 0x0e6 #define DCRN_CPC0_STRP3 0x0e7 #define DCRN_CPC0_GPIO 0x0e8 #define DCRN_CPC0_PLB 0x0e9 #define DCRN_CPC0_CR1 0x0ea #define DCRN_CPC0_CR0 0x0eb #define CPC0_CR0_SWE 0x80000000 #define CPC0_CR0_CETE 0x40000000 #define CPC0_CR0_U1FCS 0x20000000 #define CPC0_CR0_U0DTE 0x10000000 #define CPC0_CR0_U0DRE 0x08000000 #define CPC0_CR0_U0DC 0x04000000 #define CPC0_CR0_U1DTE 0x02000000 #define CPC0_CR0_U1DRE 0x01000000 #define CPC0_CR0_U1DC 0x00800000 #define CPC0_CR0_U0EC 0x00400000 #define CPC0_CR0_U1EC 0x00200000 #define CPC0_CR0_UDIV_MASK 0x001f0000 #define CPC0_CR0_UDIV(reg) \ ((((reg) & CPC0_CR0_UDIV_MASK) >> 16) + 1) #define DCRN_CPC0_MIRQ0 0x0ec #define DCRN_CPC0_MIRQ1 0x0ed #define DCRN_CPC0_JTAGID 0x0ef #define DCRN_MAL0_CFG 0x180 #define MAL_RESET 0x80000000 /* 440EP Clock/Power-on Reset regs */ #define DCRN_CPR0_ADDR 0xc #define DCRN_CPR0_DATA 0xd #define CPR0_PLLD0 0x60 #define CPR0_OPBD0 0xc0 #define CPR0_PERD0 0xe0 #define CPR0_PRIMBD0 0xa0 #define CPR0_SCPID 0x120 #define CPR0_PLLC0 0x40 /* 440GX/405EX Clock Control reg */ #define DCRN_CPR0_CLKUPD 0x020 #define DCRN_CPR0_PLLC 0x040 #define DCRN_CPR0_PLLD 0x060 #define DCRN_CPR0_PRIMAD 0x080 #define DCRN_CPR0_PRIMBD 0x0a0 #define DCRN_CPR0_OPBD 0x0c0 #define DCRN_CPR0_PERD 0x0e0 #define DCRN_CPR0_MALD 0x100 #define DCRN_SDR0_CONFIG_ADDR 0xe #define DCRN_SDR0_CONFIG_DATA 0xf /* SDR read/write helper macros */ #define SDR0_READ(offset) ({\ mtdcr(DCRN_SDR0_CONFIG_ADDR, offset); \ mfdcr(DCRN_SDR0_CONFIG_DATA); }) #define SDR0_WRITE(offset, data) ({\ mtdcr(DCRN_SDR0_CONFIG_ADDR, offset); \ mtdcr(DCRN_SDR0_CONFIG_DATA, data); }) #define DCRN_SDR0_UART0 0x0120 #define DCRN_SDR0_UART1 0x0121 #define DCRN_SDR0_UART2 0x0122 #define DCRN_SDR0_UART3 0x0123 /* CPRs read/write helper macros - based off include/asm-ppc/ibm44x.h */ #define DCRN_CPR0_CFGADDR 0xc #define DCRN_CPR0_CFGDATA 0xd #define CPR0_READ(offset) ({\ mtdcr(DCRN_CPR0_CFGADDR, offset); \ mfdcr(DCRN_CPR0_CFGDATA); }) #define CPR0_WRITE(offset, data) ({\ mtdcr(DCRN_CPR0_CFGADDR, offset); \ mtdcr(DCRN_CPR0_CFGDATA, data); }) #endif /* _PPC_BOOT_DCR_H_ */