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