| /* SPDX-License-Identifier: Apache-2.0 */ |
| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* See the file LICENSE for further information */ |
| |
| #ifndef _SIFIVE_UX00DDR_H |
| #define _SIFIVE_UX00DDR_H |
| |
| #ifndef __ASSEMBLER__ |
| |
| #include <stdint.h> |
| #include <stddef.h> |
| |
| #define _REG32(p, i) (*(volatile uint32_t *)((p) + (i))) |
| |
| #define DRAM_CLASS_OFFSET 8 |
| #define DRAM_CLASS_DDR4 0xA |
| #define OPTIMAL_RMODW_EN_OFFSET 0 |
| #define DISABLE_RD_INTERLEAVE_OFFSET 16 |
| #define OUT_OF_RANGE_OFFSET 1 |
| #define MULTIPLE_OUT_OF_RANGE_OFFSET 2 |
| #define PORT_COMMAND_CHANNEL_ERROR_OFFSET 7 |
| #define MC_INIT_COMPLETE_OFFSET 8 |
| #define LEVELING_OPERATION_COMPLETED_OFFSET 22 |
| #define DFI_PHY_WRLELV_MODE_OFFSET 24 |
| #define DFI_PHY_RDLVL_MODE_OFFSET 24 |
| #define DFI_PHY_RDLVL_GATE_MODE_OFFSET 0 |
| #define VREF_EN_OFFSET 24 |
| #define PORT_ADDR_PROTECTION_EN_OFFSET 0 |
| #define AXI0_ADDRESS_RANGE_ENABLE 8 |
| #define AXI0_RANGE_PROT_BITS_0_OFFSET 24 |
| #define RDLVL_EN_OFFSET 16 |
| #define RDLVL_GATE_EN_OFFSET 24 |
| #define WRLVL_EN_OFFSET 0 |
| |
| #define PHY_RX_CAL_DQ0_0_OFFSET 0 |
| #define PHY_RX_CAL_DQ1_0_OFFSET 16 |
| |
| static inline void phy_reset(volatile uint32_t *ddrphyreg, const uint32_t *physettings) { |
| unsigned int i; |
| for (i=1152;i<=1214;i++) { |
| uint32_t physet = physettings[i]; |
| /*if (physet!=0)*/ ddrphyreg[i] = physet; |
| } |
| for (i=0;i<=1151;i++) { |
| uint32_t physet = physettings[i]; |
| /*if (physet!=0)*/ ddrphyreg[i] = physet; |
| } |
| } |
| |
| static inline void ux00ddr_writeregmap(size_t ahbregaddr, const uint32_t *ctlsettings, const uint32_t *physettings) { |
| volatile uint32_t *ddrctlreg = (volatile uint32_t *) ahbregaddr; |
| volatile uint32_t *ddrphyreg = ((volatile uint32_t *) ahbregaddr) + (0x2000 / sizeof(uint32_t)); |
| |
| unsigned int i; |
| for (i=0;i<=264;i++) { |
| uint32_t ctlset = ctlsettings[i]; |
| /*if (ctlset!=0)*/ ddrctlreg[i] = ctlset; |
| } |
| |
| phy_reset(ddrphyreg, physettings); |
| } |
| |
| static inline void ux00ddr_start(size_t ahbregaddr, size_t filteraddr, size_t ddrend) { |
| // START register at ddrctl register base offset 0 |
| uint32_t regdata = _REG32(0<<2, ahbregaddr); |
| regdata |= 0x1; |
| _REG32(0<<2, ahbregaddr) = regdata; |
| // WAIT for initialization complete : bit 8 of INT_STATUS (DENALI_CTL_132) 0x210 |
| while ((_REG32(132<<2, ahbregaddr) & (1<<MC_INIT_COMPLETE_OFFSET)) == 0) {} |
| |
| // Disable the BusBlocker in front of the controller AXI slave ports |
| volatile uint64_t *filterreg = (volatile uint64_t *)filteraddr; |
| filterreg[0] = 0x0f00000000000000UL | (ddrend >> 2); |
| // ^^ RWX + TOR |
| } |
| |
| static inline void ux00ddr_mask_mc_init_complete_interrupt(size_t ahbregaddr) { |
| // Mask off Bit 8 of Interrupt Status |
| // Bit [8] The MC initialization has been completed |
| _REG32(136<<2, ahbregaddr) |= (1<<MC_INIT_COMPLETE_OFFSET); |
| } |
| |
| static inline void ux00ddr_mask_outofrange_interrupts(size_t ahbregaddr) { |
| // Mask off Bit 8, Bit 2 and Bit 1 of Interrupt Status |
| // Bit [2] Multiple accesses outside the defined PHYSICAL memory space have occurred |
| // Bit [1] A memory access outside the defined PHYSICAL memory space has occurred |
| _REG32(136<<2, ahbregaddr) |= ((1<<OUT_OF_RANGE_OFFSET) | (1<<MULTIPLE_OUT_OF_RANGE_OFFSET)); |
| } |
| |
| static inline void ux00ddr_mask_port_command_error_interrupt(size_t ahbregaddr) { |
| // Mask off Bit 7 of Interrupt Status |
| // Bit [7] An error occurred on the port command channel |
| _REG32(136<<2, ahbregaddr) |= (1<<PORT_COMMAND_CHANNEL_ERROR_OFFSET); |
| } |
| |
| static inline void ux00ddr_mask_leveling_completed_interrupt(size_t ahbregaddr) { |
| // Mask off Bit 22 of Interrupt Status |
| // Bit [22] The leveling operation has completed |
| _REG32(136<<2, ahbregaddr) |= (1<<LEVELING_OPERATION_COMPLETED_OFFSET); |
| } |
| |
| static inline void ux00ddr_setuprangeprotection(size_t ahbregaddr, size_t end_addr) { |
| _REG32(209<<2, ahbregaddr) = 0x0; |
| size_t end_addr_16Kblocks = ((end_addr >> 14) & 0x7FFFFF)-1; |
| _REG32(210<<2, ahbregaddr) = ((uint32_t) end_addr_16Kblocks); |
| _REG32(212<<2, ahbregaddr) = 0x0; |
| _REG32(214<<2, ahbregaddr) = 0x0; |
| _REG32(216<<2, ahbregaddr) = 0x0; |
| _REG32(224<<2, ahbregaddr) |= (0x3 << AXI0_RANGE_PROT_BITS_0_OFFSET); |
| _REG32(225<<2, ahbregaddr) = 0xFFFFFFFF; |
| _REG32(208<<2, ahbregaddr) |= (1 << AXI0_ADDRESS_RANGE_ENABLE); |
| _REG32(208<<2, ahbregaddr) |= (1 << PORT_ADDR_PROTECTION_EN_OFFSET); |
| |
| } |
| |
| static inline void ux00ddr_disableaxireadinterleave(size_t ahbregaddr) { |
| _REG32(120<<2, ahbregaddr) |= (1<<DISABLE_RD_INTERLEAVE_OFFSET); |
| } |
| |
| static inline void ux00ddr_disableoptimalrmodw(size_t ahbregaddr) { |
| _REG32(21<<2, ahbregaddr) &= (~(1<<OPTIMAL_RMODW_EN_OFFSET)); |
| } |
| |
| static inline void ux00ddr_enablewriteleveling(size_t ahbregaddr) { |
| _REG32(170<<2, ahbregaddr) |= ((1<<WRLVL_EN_OFFSET) | (1<<DFI_PHY_WRLELV_MODE_OFFSET)); |
| } |
| |
| static inline void ux00ddr_enablereadleveling(size_t ahbregaddr) { |
| _REG32(181<<2, ahbregaddr) |= (1<<DFI_PHY_RDLVL_MODE_OFFSET); |
| _REG32(260<<2, ahbregaddr) |= (1<<RDLVL_EN_OFFSET); |
| } |
| |
| static inline void ux00ddr_enablereadlevelinggate(size_t ahbregaddr) { |
| _REG32(260<<2, ahbregaddr) |= (1<<RDLVL_GATE_EN_OFFSET); |
| _REG32(182<<2, ahbregaddr) |= (1<<DFI_PHY_RDLVL_GATE_MODE_OFFSET); |
| } |
| |
| static inline void ux00ddr_enablevreftraining(size_t ahbregaddr) { |
| _REG32(184<<2, ahbregaddr) |= (1<<VREF_EN_OFFSET); |
| } |
| |
| static inline uint32_t ux00ddr_getdramclass(size_t ahbregaddr) { |
| return ((_REG32(0, ahbregaddr) >> DRAM_CLASS_OFFSET) & 0xF); |
| } |
| |
| static inline uint64_t ux00ddr_phy_fixup(size_t ahbregaddr) { |
| // return bitmask of failed lanes |
| |
| size_t ddrphyreg = ahbregaddr + 0x2000; |
| |
| uint64_t fails=0; |
| uint32_t slicebase = 0; |
| uint32_t dq = 0; |
| |
| // check errata condition |
| for (uint32_t slice = 0; slice < 8; slice++) { |
| uint32_t regbase = slicebase + 34; |
| for (uint32_t reg = 0 ; reg < 4; reg++) { |
| uint32_t updownreg = _REG32((regbase+reg)<<2, ddrphyreg); |
| for (uint32_t bit = 0; bit < 2; bit++) { |
| uint32_t phy_rx_cal_dqn_0_offset; |
| |
| if (bit==0) { |
| phy_rx_cal_dqn_0_offset = PHY_RX_CAL_DQ0_0_OFFSET; |
| }else{ |
| phy_rx_cal_dqn_0_offset = PHY_RX_CAL_DQ1_0_OFFSET; |
| } |
| |
| uint32_t down = (updownreg >> phy_rx_cal_dqn_0_offset) & 0x3F; |
| uint32_t up = (updownreg >> (phy_rx_cal_dqn_0_offset+6)) & 0x3F; |
| |
| uint8_t failc0 = ((down == 0) && (up == 0x3F)); |
| uint8_t failc1 = ((up == 0) && (down == 0x3F)); |
| |
| // print error message on failure |
| if (failc0 || failc1) { |
| //if (fails==0) uart_puts((void*) UART0_CTRL_ADDR, "DDR error in fixing up \n"); |
| fails |= (1<<dq); |
| char slicelsc = '0'; |
| char slicemsc = '0'; |
| slicelsc += (dq % 10); |
| slicemsc += (dq / 10); |
| //uart_puts((void*) UART0_CTRL_ADDR, "S "); |
| //uart_puts((void*) UART0_CTRL_ADDR, &slicemsc); |
| //uart_puts((void*) UART0_CTRL_ADDR, &slicelsc); |
| //if (failc0) uart_puts((void*) UART0_CTRL_ADDR, "U"); |
| //else uart_puts((void*) UART0_CTRL_ADDR, "D"); |
| //uart_puts((void*) UART0_CTRL_ADDR, "\n"); |
| } |
| dq++; |
| } |
| } |
| slicebase+=128; |
| } |
| return (0); |
| } |
| |
| #endif |
| |
| #endif |