| /* |
| * Copyright 2014-2015 Freescale Semiconductor |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| #include <common.h> |
| #include <fsl_ifc.h> |
| #include <ahci.h> |
| #include <scsi.h> |
| #include <asm/arch/soc.h> |
| #include <asm/io.h> |
| #include <asm/global_data.h> |
| #include <asm/arch-fsl-layerscape/config.h> |
| #include <fsl_ddr_sdram.h> |
| #include <fsl_ddr.h> |
| #ifdef CONFIG_CHAIN_OF_TRUST |
| #include <fsl_validate.h> |
| #endif |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| bool soc_has_dp_ddr(void) |
| { |
| struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR); |
| u32 svr = gur_in32(&gur->svr); |
| |
| /* LS2085A has DP_DDR */ |
| if (SVR_SOC_VER(svr) == SVR_LS2085) |
| return true; |
| |
| return false; |
| } |
| |
| bool soc_has_aiop(void) |
| { |
| struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR); |
| u32 svr = gur_in32(&gur->svr); |
| |
| /* LS2085A has AIOP */ |
| if (SVR_SOC_VER(svr) == SVR_LS2085) |
| return true; |
| |
| return false; |
| } |
| |
| #ifdef CONFIG_LS2080A |
| /* |
| * This erratum requires setting a value to eddrtqcr1 to |
| * optimal the DDR performance. |
| */ |
| static void erratum_a008336(void) |
| { |
| u32 *eddrtqcr1; |
| |
| #ifdef CONFIG_SYS_FSL_ERRATUM_A008336 |
| #ifdef CONFIG_SYS_FSL_DCSR_DDR_ADDR |
| eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR_ADDR + 0x800; |
| out_le32(eddrtqcr1, 0x63b30002); |
| #endif |
| #ifdef CONFIG_SYS_FSL_DCSR_DDR2_ADDR |
| eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR2_ADDR + 0x800; |
| out_le32(eddrtqcr1, 0x63b30002); |
| #endif |
| #endif |
| } |
| |
| /* |
| * This erratum requires a register write before being Memory |
| * controller 3 being enabled. |
| */ |
| static void erratum_a008514(void) |
| { |
| u32 *eddrtqcr1; |
| |
| #ifdef CONFIG_SYS_FSL_ERRATUM_A008514 |
| #ifdef CONFIG_SYS_FSL_DCSR_DDR3_ADDR |
| eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR3_ADDR + 0x800; |
| out_le32(eddrtqcr1, 0x63b20002); |
| #endif |
| #endif |
| } |
| #ifdef CONFIG_SYS_FSL_ERRATUM_A009635 |
| #define PLATFORM_CYCLE_ENV_VAR "a009635_interval_val" |
| |
| static unsigned long get_internval_val_mhz(void) |
| { |
| char *interval = getenv(PLATFORM_CYCLE_ENV_VAR); |
| /* |
| * interval is the number of platform cycles(MHz) between |
| * wake up events generated by EPU. |
| */ |
| ulong interval_mhz = get_bus_freq(0) / (1000 * 1000); |
| |
| if (interval) |
| interval_mhz = simple_strtoul(interval, NULL, 10); |
| |
| return interval_mhz; |
| } |
| |
| void erratum_a009635(void) |
| { |
| u32 val; |
| unsigned long interval_mhz = get_internval_val_mhz(); |
| |
| if (!interval_mhz) |
| return; |
| |
| val = in_le32(DCSR_CGACRE5); |
| writel(val | 0x00000200, DCSR_CGACRE5); |
| |
| val = in_le32(EPU_EPCMPR5); |
| writel(interval_mhz, EPU_EPCMPR5); |
| val = in_le32(EPU_EPCCR5); |
| writel(val | 0x82820000, EPU_EPCCR5); |
| val = in_le32(EPU_EPSMCR5); |
| writel(val | 0x002f0000, EPU_EPSMCR5); |
| val = in_le32(EPU_EPECR5); |
| writel(val | 0x20000000, EPU_EPECR5); |
| val = in_le32(EPU_EPGCR); |
| writel(val | 0x80000000, EPU_EPGCR); |
| } |
| #endif /* CONFIG_SYS_FSL_ERRATUM_A009635 */ |
| |
| static void erratum_a008751(void) |
| { |
| #ifdef CONFIG_SYS_FSL_ERRATUM_A008751 |
| u32 __iomem *scfg = (u32 __iomem *)SCFG_BASE; |
| |
| writel(0x27672b2a, scfg + SCFG_USB3PRM1CR / 4); |
| #endif |
| } |
| |
| static void erratum_rcw_src(void) |
| { |
| #if defined(CONFIG_SPL) |
| u32 __iomem *dcfg_ccsr = (u32 __iomem *)DCFG_BASE; |
| u32 __iomem *dcfg_dcsr = (u32 __iomem *)DCFG_DCSR_BASE; |
| u32 val; |
| |
| val = in_le32(dcfg_ccsr + DCFG_PORSR1 / 4); |
| val &= ~DCFG_PORSR1_RCW_SRC; |
| val |= DCFG_PORSR1_RCW_SRC_NOR; |
| out_le32(dcfg_dcsr + DCFG_DCSR_PORCR1 / 4, val); |
| #endif |
| } |
| |
| #define I2C_DEBUG_REG 0x6 |
| #define I2C_GLITCH_EN 0x8 |
| /* |
| * This erratum requires setting glitch_en bit to enable |
| * digital glitch filter to improve clock stability. |
| */ |
| static void erratum_a009203(void) |
| { |
| u8 __iomem *ptr; |
| #ifdef CONFIG_SYS_I2C |
| #ifdef I2C1_BASE_ADDR |
| ptr = (u8 __iomem *)(I2C1_BASE_ADDR + I2C_DEBUG_REG); |
| |
| writeb(I2C_GLITCH_EN, ptr); |
| #endif |
| #ifdef I2C2_BASE_ADDR |
| ptr = (u8 __iomem *)(I2C2_BASE_ADDR + I2C_DEBUG_REG); |
| |
| writeb(I2C_GLITCH_EN, ptr); |
| #endif |
| #ifdef I2C3_BASE_ADDR |
| ptr = (u8 __iomem *)(I2C3_BASE_ADDR + I2C_DEBUG_REG); |
| |
| writeb(I2C_GLITCH_EN, ptr); |
| #endif |
| #ifdef I2C4_BASE_ADDR |
| ptr = (u8 __iomem *)(I2C4_BASE_ADDR + I2C_DEBUG_REG); |
| |
| writeb(I2C_GLITCH_EN, ptr); |
| #endif |
| #endif |
| } |
| void bypass_smmu(void) |
| { |
| u32 val; |
| val = (in_le32(SMMU_SCR0) | SCR0_CLIENTPD_MASK) & ~(SCR0_USFCFG_MASK); |
| out_le32(SMMU_SCR0, val); |
| val = (in_le32(SMMU_NSCR0) | SCR0_CLIENTPD_MASK) & ~(SCR0_USFCFG_MASK); |
| out_le32(SMMU_NSCR0, val); |
| } |
| void fsl_lsch3_early_init_f(void) |
| { |
| erratum_a008751(); |
| erratum_rcw_src(); |
| init_early_memctl_regs(); /* tighten IFC timing */ |
| erratum_a009203(); |
| erratum_a008514(); |
| erratum_a008336(); |
| #ifdef CONFIG_CHAIN_OF_TRUST |
| /* In case of Secure Boot, the IBR configures the SMMU |
| * to allow only Secure transactions. |
| * SMMU must be reset in bypass mode. |
| * Set the ClientPD bit and Clear the USFCFG Bit |
| */ |
| if (fsl_check_boot_mode_secure() == 1) |
| bypass_smmu(); |
| #endif |
| } |
| |
| #ifdef CONFIG_SCSI_AHCI_PLAT |
| int sata_init(void) |
| { |
| struct ccsr_ahci __iomem *ccsr_ahci; |
| |
| ccsr_ahci = (void *)CONFIG_SYS_SATA2; |
| out_le32(&ccsr_ahci->ppcfg, AHCI_PORT_PHY_1_CFG); |
| out_le32(&ccsr_ahci->ptc, AHCI_PORT_TRANS_CFG); |
| |
| ccsr_ahci = (void *)CONFIG_SYS_SATA1; |
| out_le32(&ccsr_ahci->ppcfg, AHCI_PORT_PHY_1_CFG); |
| out_le32(&ccsr_ahci->ptc, AHCI_PORT_TRANS_CFG); |
| |
| ahci_init((void __iomem *)CONFIG_SYS_SATA1); |
| scsi_scan(0); |
| |
| return 0; |
| } |
| #endif |
| |
| #elif defined(CONFIG_LS1043A) |
| #ifdef CONFIG_SCSI_AHCI_PLAT |
| int sata_init(void) |
| { |
| struct ccsr_ahci __iomem *ccsr_ahci = (void *)CONFIG_SYS_SATA; |
| |
| out_le32(&ccsr_ahci->ppcfg, AHCI_PORT_PHY_1_CFG); |
| out_le32(&ccsr_ahci->pp2c, AHCI_PORT_PHY_2_CFG); |
| out_le32(&ccsr_ahci->pp3c, AHCI_PORT_PHY_3_CFG); |
| out_le32(&ccsr_ahci->ptc, AHCI_PORT_TRANS_CFG); |
| |
| ahci_init((void __iomem *)CONFIG_SYS_SATA); |
| scsi_scan(0); |
| |
| return 0; |
| } |
| #endif |
| |
| static void erratum_a009929(void) |
| { |
| #ifdef CONFIG_SYS_FSL_ERRATUM_A009929 |
| struct ccsr_gur *gur = (void *)CONFIG_SYS_FSL_GUTS_ADDR; |
| u32 __iomem *dcsr_cop_ccp = (void *)CONFIG_SYS_DCSR_COP_CCP_ADDR; |
| u32 rstrqmr1 = gur_in32(&gur->rstrqmr1); |
| |
| rstrqmr1 |= 0x00000400; |
| gur_out32(&gur->rstrqmr1, rstrqmr1); |
| writel(0x01000000, dcsr_cop_ccp); |
| #endif |
| } |
| |
| /* |
| * This erratum requires setting a value to eddrtqcr1 to optimal |
| * the DDR performance. The eddrtqcr1 register is in SCFG space |
| * of LS1043A and the offset is 0x157_020c. |
| */ |
| #if defined(CONFIG_SYS_FSL_ERRATUM_A009660) \ |
| && defined(CONFIG_SYS_FSL_ERRATUM_A008514) |
| #error A009660 and A008514 can not be both enabled. |
| #endif |
| |
| static void erratum_a009660(void) |
| { |
| #ifdef CONFIG_SYS_FSL_ERRATUM_A009660 |
| u32 *eddrtqcr1 = (void *)CONFIG_SYS_FSL_SCFG_ADDR + 0x20c; |
| out_be32(eddrtqcr1, 0x63b20042); |
| #endif |
| } |
| |
| static void erratum_a008850_early(void) |
| { |
| #ifdef CONFIG_SYS_FSL_ERRATUM_A008850 |
| /* part 1 of 2 */ |
| struct ccsr_cci400 __iomem *cci = (void *)CONFIG_SYS_CCI400_ADDR; |
| struct ccsr_ddr __iomem *ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR; |
| |
| /* disables propagation of barrier transactions to DDRC from CCI400 */ |
| out_le32(&cci->ctrl_ord, CCI400_CTRLORD_TERM_BARRIER); |
| |
| /* disable the re-ordering in DDRC */ |
| ddr_out32(&ddr->eor, DDR_EOR_RD_REOD_DIS | DDR_EOR_WD_REOD_DIS); |
| #endif |
| } |
| |
| void erratum_a008850_post(void) |
| { |
| #ifdef CONFIG_SYS_FSL_ERRATUM_A008850 |
| /* part 2 of 2 */ |
| struct ccsr_cci400 __iomem *cci = (void *)CONFIG_SYS_CCI400_ADDR; |
| struct ccsr_ddr __iomem *ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR; |
| u32 tmp; |
| |
| /* enable propagation of barrier transactions to DDRC from CCI400 */ |
| out_le32(&cci->ctrl_ord, CCI400_CTRLORD_EN_BARRIER); |
| |
| /* enable the re-ordering in DDRC */ |
| tmp = ddr_in32(&ddr->eor); |
| tmp &= ~(DDR_EOR_RD_REOD_DIS | DDR_EOR_WD_REOD_DIS); |
| ddr_out32(&ddr->eor, tmp); |
| #endif |
| } |
| |
| void fsl_lsch2_early_init_f(void) |
| { |
| struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR; |
| struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR; |
| |
| #ifdef CONFIG_FSL_IFC |
| init_early_memctl_regs(); /* tighten IFC timing */ |
| #endif |
| |
| #if defined(CONFIG_FSL_QSPI) && !defined(CONFIG_QSPI_BOOT) |
| out_be32(&scfg->qspi_cfg, SCFG_QSPI_CLKSEL); |
| #endif |
| /* Make SEC reads and writes snoopable */ |
| setbits_be32(&scfg->snpcnfgcr, SCFG_SNPCNFGCR_SECRDSNP | |
| SCFG_SNPCNFGCR_SECWRSNP); |
| |
| /* |
| * Enable snoop requests and DVM message requests for |
| * Slave insterface S4 (A53 core cluster) |
| */ |
| out_le32(&cci->slave[4].snoop_ctrl, |
| CCI400_DVM_MESSAGE_REQ_EN | CCI400_SNOOP_REQ_EN); |
| |
| /* Erratum */ |
| erratum_a008850_early(); /* part 1 of 2 */ |
| erratum_a009929(); |
| erratum_a009660(); |
| } |
| #endif |
| |
| #ifdef CONFIG_BOARD_LATE_INIT |
| int board_late_init(void) |
| { |
| #ifdef CONFIG_SCSI_AHCI_PLAT |
| sata_init(); |
| #endif |
| #ifdef CONFIG_CHAIN_OF_TRUST |
| fsl_setenv_chain_of_trust(); |
| #endif |
| |
| return 0; |
| } |
| #endif |