#include <asm/processor.h>
#include <asm/fsl_law.h>
#include <asm/errno.h>
+#include <asm/fsl_errata.h>
#include "fsl_corenet2_serdes.h"
#ifdef CONFIG_SYS_FSL_SRDS_1
[XFI_FM2_MAC9] = "XFI_FM2_MAC9",
[XFI_FM2_MAC10] = "XFI_FM2_MAC10",
[INTERLAKEN] = "INTERLAKEN",
+ [QSGMII_SW1_A] = "QSGMII_SW1_A",
+ [QSGMII_SW1_B] = "QSGMII_SW1_B",
};
#endif
return -ENODEV;
}
+#define BC3_SHIFT 9
+#define DC3_SHIFT 6
+#define FC3_SHIFT 0
+#define BC2_SHIFT 19
+#define DC2_SHIFT 16
+#define FC2_SHIFT 10
+#define BC1_SHIFT 29
+#define DC1_SHIFT 26
+#define FC1_SHIFT 20
+#define BC_MASK 0x1
+#define DC_MASK 0x7
+#define FC_MASK 0x3F
+
+#define FUSE_VAL_MASK 0x00000003
+#define FUSE_VAL_SHIFT 30
+#define CR0_DCBIAS_SHIFT 5
+#define CR1_FCAP_SHIFT 15
+#define CR1_BCAP_SHIFT 29
+#define FCAP_MASK 0x001F8000
+#define BCAP_MASK 0x20000000
+#define BCAP_OVD_MASK 0x10000000
+#define BYP_CAL_MASK 0x02000000
+
u64 serdes_init(u32 sd, u32 sd_addr, u32 sd_prctl_mask, u32 sd_prctl_shift)
{
ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
u64 serdes_prtcl_map = 0;
u32 cfg;
int lane;
+#ifdef CONFIG_SYS_FSL_ERRATUM_A007186
+ struct ccsr_sfp_regs __iomem *sfp_regs =
+ (struct ccsr_sfp_regs __iomem *)(CONFIG_SYS_SFP_ADDR);
+ u32 pll_num, pll_status, bc, dc, fc, pll_cr_upd, pll_cr0, pll_cr1;
+ u32 bc_status, fc_status, dc_status, pll_sr2;
+ serdes_corenet_t __iomem *srds_regs = (void *)sd_addr;
+ u32 sfp_spfr0, sel;
+#endif
cfg = in_be32(&gur->rcwsr[4]) & sd_prctl_mask;
- /* Is serdes enabled at all? */
- if (!cfg) {
- printf("SERDES%d is not enabled\n", sd + 1);
- return 0;
+
+/* Erratum A-007186
+ * Freescale Scratch Pad Fuse Register n (SFP_FSPFR0)
+ * The workaround requires factory pre-set SerDes calibration values to be
+ * read from a fuse block(Freescale Scratch Pad Fuse Register SFP_FSPFR0)
+ * These values have been shown to work across the
+ * entire temperature range for all SerDes. These values are then written into
+ * the SerDes registers to calibrate the SerDes PLL.
+ *
+ * This workaround for the protocols and rates that only have the Ring VCO.
+ */
+#ifdef CONFIG_SYS_FSL_ERRATUM_A007186
+ sfp_spfr0 = in_be32(&sfp_regs->fsl_spfr0);
+ debug("A007186: sfp_spfr0= %x\n", sfp_spfr0);
+
+ sel = (sfp_spfr0 >> FUSE_VAL_SHIFT) & FUSE_VAL_MASK;
+
+ if (has_erratum_a007186() && (sel == 0x01 || sel == 0x02)) {
+ for (pll_num = 0; pll_num < SRDS_MAX_BANK; pll_num++) {
+ pll_status = in_be32(&srds_regs->bank[pll_num].pllcr0);
+ debug("A007186: pll_num=%x pllcr0=%x\n",
+ pll_num, pll_status);
+ /* STEP 1 */
+ /* Read factory pre-set SerDes calibration values
+ * from fuse block(SFP scratch register-sfp_spfr0)
+ */
+ switch (pll_status & SRDS_PLLCR0_FRATE_SEL_MASK) {
+ case SRDS_PLLCR0_FRATE_SEL_3_0:
+ case SRDS_PLLCR0_FRATE_SEL_3_072:
+ debug("A007186: 3.0/3.072 protocol rate\n");
+ bc = (sfp_spfr0 >> BC1_SHIFT) & BC_MASK;
+ dc = (sfp_spfr0 >> DC1_SHIFT) & DC_MASK;
+ fc = (sfp_spfr0 >> FC1_SHIFT) & FC_MASK;
+ break;
+ case SRDS_PLLCR0_FRATE_SEL_3_125:
+ debug("A007186: 3.125 protocol rate\n");
+ bc = (sfp_spfr0 >> BC2_SHIFT) & BC_MASK;
+ dc = (sfp_spfr0 >> DC2_SHIFT) & DC_MASK;
+ fc = (sfp_spfr0 >> FC2_SHIFT) & FC_MASK;
+ break;
+ case SRDS_PLLCR0_FRATE_SEL_3_75:
+ debug("A007186: 3.75 protocol rate\n");
+ bc = (sfp_spfr0 >> BC1_SHIFT) & BC_MASK;
+ dc = (sfp_spfr0 >> DC1_SHIFT) & DC_MASK;
+ fc = (sfp_spfr0 >> FC1_SHIFT) & FC_MASK;
+ break;
+ default:
+ continue;
+ }
+
+ /* STEP 2 */
+ /* Write SRDSxPLLnCR1[11:16] = FC
+ * Write SRDSxPLLnCR1[2] = BC
+ */
+ pll_cr1 = in_be32(&srds_regs->bank[pll_num].pllcr1);
+ pll_cr_upd = (((bc << CR1_BCAP_SHIFT) & BCAP_MASK) |
+ ((fc << CR1_FCAP_SHIFT) & FCAP_MASK));
+ out_be32(&srds_regs->bank[pll_num].pllcr1,
+ (pll_cr_upd | pll_cr1));
+ debug("A007186: pll_num=%x Updated PLLCR1=%x\n",
+ pll_num, (pll_cr_upd | pll_cr1));
+ /* Write SRDSxPLLnCR0[24:26] = DC
+ */
+ pll_cr0 = in_be32(&srds_regs->bank[pll_num].pllcr0);
+ out_be32(&srds_regs->bank[pll_num].pllcr0,
+ pll_cr0 | (dc << CR0_DCBIAS_SHIFT));
+ debug("A007186: pll_num=%x, Updated PLLCR0=%x\n",
+ pll_num, (pll_cr0 | (dc << CR0_DCBIAS_SHIFT)));
+ /* Write SRDSxPLLnCR1[3] = 1
+ * Write SRDSxPLLnCR1[6] = 1
+ */
+ pll_cr1 = in_be32(&srds_regs->bank[pll_num].pllcr1);
+ pll_cr_upd = (BCAP_OVD_MASK | BYP_CAL_MASK);
+ out_be32(&srds_regs->bank[pll_num].pllcr1,
+ (pll_cr_upd | pll_cr1));
+ debug("A007186: pll_num=%x Updated PLLCR1=%x\n",
+ pll_num, (pll_cr_upd | pll_cr1));
+
+ /* STEP 3 */
+ /* Read the status Registers */
+ /* Verify SRDSxPLLnSR2[8] = BC */
+ pll_sr2 = in_be32(&srds_regs->bank[pll_num].pllsr2);
+ debug("A007186: pll_num=%x pllsr2=%x\n",
+ pll_num, pll_sr2);
+ bc_status = (pll_sr2 >> 23) & BC_MASK;
+ if (bc_status != bc)
+ debug("BC mismatch\n");
+ fc_status = (pll_sr2 >> 16) & FC_MASK;
+ if (fc_status != fc)
+ debug("FC mismatch\n");
+ pll_cr0 = in_be32(&srds_regs->bank[pll_num].pllcr0);
+ out_be32(&srds_regs->bank[pll_num].pllcr0, pll_cr0 |
+ 0x02000000);
+ pll_sr2 = in_be32(&srds_regs->bank[pll_num].pllsr2);
+ dc_status = (pll_sr2 >> 17) & DC_MASK;
+ if (dc_status != dc)
+ debug("DC mismatch\n");
+ pll_cr0 = in_be32(&srds_regs->bank[pll_num].pllcr0);
+ out_be32(&srds_regs->bank[pll_num].pllcr0, pll_cr0 &
+ 0xfdffffff);
+
+ /* STEP 4 */
+ /* Wait 750us to verify the PLL is locked
+ * by checking SRDSxPLLnCR0[8] = 1.
+ */
+ udelay(750);
+ pll_status = in_be32(&srds_regs->bank[pll_num].pllcr0);
+ debug("A007186: pll_num=%x pllcr0=%x\n",
+ pll_num, pll_status);
+
+ if ((pll_status & SRDS_PLLCR0_PLL_LCK) == 0)
+ printf("A007186 Serdes PLL not locked\n");
+ else
+ debug("A007186 Serdes PLL locked\n");
+ }
}
+#endif
cfg >>= sd_prctl_shift;
printf("Using SERDES%d Protocol: %d (0x%x)\n", sd + 1, cfg, cfg);
#endif
}
+
+const char *serdes_clock_to_string(u32 clock)
+{
+ switch (clock) {
+ case SRDS_PLLCR0_RFCK_SEL_100:
+ return "100";
+ case SRDS_PLLCR0_RFCK_SEL_125:
+ return "125";
+ case SRDS_PLLCR0_RFCK_SEL_156_25:
+ return "156.25";
+ case SRDS_PLLCR0_RFCK_SEL_161_13:
+ return "161.1328123";
+ default:
+#if defined(CONFIG_T4240QDS)
+ return "???";
+#else
+ return "122.88";
+#endif
+ }
+}
+
projects / karo-tx-uboot.git / blobdiff