#define CLK_MUX_SEL_MASK 0x4
#define ETH_PHY_CLK_OUT 0x4
-#define PLL_NUM 2
DECLARE_GLOBAL_DATA_PTR;
return 0;
}
+static int calibrate_pll(serdes_corenet_t *srds_regs, int pll_num)
+{
+ u32 rst_err;
+
+ /* Steps For SerDes PLLs reset and reconfiguration
+ * or PLL power-up procedure
+ */
+ debug("CALIBRATE PLL:%d\n", pll_num);
+ clrbits_be32(&srds_regs->bank[pll_num].rstctl,
+ SRDS_RSTCTL_SDRST_B);
+ udelay(10);
+ clrbits_be32(&srds_regs->bank[pll_num].rstctl,
+ (SRDS_RSTCTL_SDEN | SRDS_RSTCTL_PLLRST_B));
+ udelay(10);
+ setbits_be32(&srds_regs->bank[pll_num].rstctl,
+ SRDS_RSTCTL_RST);
+ setbits_be32(&srds_regs->bank[pll_num].rstctl,
+ (SRDS_RSTCTL_SDEN | SRDS_RSTCTL_PLLRST_B
+ | SRDS_RSTCTL_SDRST_B));
+
+ udelay(20);
+
+ /* Check whether PLL has been locked or not */
+ rst_err = in_be32(&srds_regs->bank[pll_num].rstctl) &
+ SRDS_RSTCTL_RSTERR;
+ rst_err >>= SRDS_RSTCTL_RSTERR_SHIFT;
+ debug("RST_ERR value for PLL %d is: 0x%x:\n", pll_num, rst_err);
+ if (rst_err)
+ return rst_err;
+
+ return rst_err;
+}
+
+static int check_pll_locks(serdes_corenet_t *srds_regs, int pll_num)
+{
+ int ret = 0;
+ u32 fcap, dcbias, bcap, pllcr1, pllcr0;
+
+ if (calibrate_pll(srds_regs, pll_num)) {
+ /* STEP 1 */
+ /* Read fcap, dcbias and bcap value */
+ clrbits_be32(&srds_regs->bank[pll_num].pllcr0,
+ SRDS_PLLCR0_DCBIAS_OUT_EN);
+ fcap = in_be32(&srds_regs->bank[pll_num].pllsr2) &
+ SRDS_PLLSR2_FCAP;
+ fcap >>= SRDS_PLLSR2_FCAP_SHIFT;
+ bcap = in_be32(&srds_regs->bank[pll_num].pllsr2) &
+ SRDS_PLLSR2_BCAP_EN;
+ bcap >>= SRDS_PLLSR2_BCAP_EN_SHIFT;
+ setbits_be32(&srds_regs->bank[pll_num].pllcr0,
+ SRDS_PLLCR0_DCBIAS_OUT_EN);
+ dcbias = in_be32(&srds_regs->bank[pll_num].pllsr2) &
+ SRDS_PLLSR2_DCBIAS;
+ dcbias >>= SRDS_PLLSR2_DCBIAS_SHIFT;
+ debug("values of bcap:%x, fcap:%x and dcbias:%x\n",
+ bcap, fcap, dcbias);
+ if (fcap == 0 && bcap == 1) {
+ /* Step 3 */
+ clrbits_be32(&srds_regs->bank[pll_num].rstctl,
+ (SRDS_RSTCTL_SDEN | SRDS_RSTCTL_PLLRST_B
+ | SRDS_RSTCTL_SDRST_B));
+ clrbits_be32(&srds_regs->bank[pll_num].pllcr1,
+ SRDS_PLLCR1_BCAP_EN);
+ setbits_be32(&srds_regs->bank[pll_num].pllcr1,
+ SRDS_PLLCR1_BCAP_OVD);
+ if (calibrate_pll(srds_regs, pll_num)) {
+ /*save the fcap, dcbias and bcap values*/
+ clrbits_be32(&srds_regs->bank[pll_num].pllcr0,
+ SRDS_PLLCR0_DCBIAS_OUT_EN);
+ fcap = in_be32(&srds_regs->bank[pll_num].pllsr2)
+ & SRDS_PLLSR2_FCAP;
+ fcap >>= SRDS_PLLSR2_FCAP_SHIFT;
+ bcap = in_be32(&srds_regs->bank[pll_num].pllsr2)
+ & SRDS_PLLSR2_BCAP_EN;
+ bcap >>= SRDS_PLLSR2_BCAP_EN_SHIFT;
+ setbits_be32(&srds_regs->bank[pll_num].pllcr0,
+ SRDS_PLLCR0_DCBIAS_OUT_EN);
+ dcbias = in_be32
+ (&srds_regs->bank[pll_num].pllsr2) &
+ SRDS_PLLSR2_DCBIAS;
+ dcbias >>= SRDS_PLLSR2_DCBIAS_SHIFT;
+
+ /* Step 4*/
+ clrbits_be32(&srds_regs->bank[pll_num].rstctl,
+ (SRDS_RSTCTL_SDEN | SRDS_RSTCTL_PLLRST_B
+ | SRDS_RSTCTL_SDRST_B));
+ setbits_be32(&srds_regs->bank[pll_num].pllcr1,
+ SRDS_PLLCR1_BYP_CAL);
+ clrbits_be32(&srds_regs->bank[pll_num].pllcr1,
+ SRDS_PLLCR1_BCAP_EN);
+ setbits_be32(&srds_regs->bank[pll_num].pllcr1,
+ SRDS_PLLCR1_BCAP_OVD);
+ /* change the fcap and dcbias to the saved
+ * values from Step 3 */
+ clrbits_be32(&srds_regs->bank[pll_num].pllcr1,
+ SRDS_PLLCR1_PLL_FCAP);
+ pllcr1 = (in_be32
+ (&srds_regs->bank[pll_num].pllcr1)|
+ (fcap << SRDS_PLLCR1_PLL_FCAP_SHIFT));
+ out_be32(&srds_regs->bank[pll_num].pllcr1,
+ pllcr1);
+ clrbits_be32(&srds_regs->bank[pll_num].pllcr0,
+ SRDS_PLLCR0_DCBIAS_OVRD);
+ pllcr0 = (in_be32
+ (&srds_regs->bank[pll_num].pllcr0)|
+ (dcbias << SRDS_PLLCR0_DCBIAS_OVRD_SHIFT));
+ out_be32(&srds_regs->bank[pll_num].pllcr0,
+ pllcr0);
+ ret = calibrate_pll(srds_regs, pll_num);
+ if (ret)
+ return ret;
+ } else {
+ goto out;
+ }
+ } else { /* Step 5 */
+ clrbits_be32(&srds_regs->bank[pll_num].rstctl,
+ (SRDS_RSTCTL_SDEN | SRDS_RSTCTL_PLLRST_B
+ | SRDS_RSTCTL_SDRST_B));
+ udelay(10);
+ /* Change the fcap, dcbias, and bcap to the
+ * values from Step 1 */
+ setbits_be32(&srds_regs->bank[pll_num].pllcr1,
+ SRDS_PLLCR1_BYP_CAL);
+ clrbits_be32(&srds_regs->bank[pll_num].pllcr1,
+ SRDS_PLLCR1_PLL_FCAP);
+ pllcr1 = (in_be32(&srds_regs->bank[pll_num].pllcr1)|
+ (fcap << SRDS_PLLCR1_PLL_FCAP_SHIFT));
+ out_be32(&srds_regs->bank[pll_num].pllcr1,
+ pllcr1);
+ clrbits_be32(&srds_regs->bank[pll_num].pllcr0,
+ SRDS_PLLCR0_DCBIAS_OVRD);
+ pllcr0 = (in_be32(&srds_regs->bank[pll_num].pllcr0)|
+ (dcbias << SRDS_PLLCR0_DCBIAS_OVRD_SHIFT));
+ out_be32(&srds_regs->bank[pll_num].pllcr0,
+ pllcr0);
+ clrbits_be32(&srds_regs->bank[pll_num].pllcr1,
+ SRDS_PLLCR1_BCAP_EN);
+ setbits_be32(&srds_regs->bank[pll_num].pllcr1,
+ SRDS_PLLCR1_BCAP_OVD);
+ ret = calibrate_pll(srds_regs, pll_num);
+ if (ret)
+ return ret;
+ }
+ }
+out:
+ return 0;
+}
+
+static int check_serdes_pll_locks(void)
+{
+ serdes_corenet_t *srds1_regs =
+ (void *)CONFIG_SYS_FSL_CORENET_SERDES_ADDR;
+ serdes_corenet_t *srds2_regs =
+ (void *)CONFIG_SYS_FSL_CORENET_SERDES2_ADDR;
+ int i, ret1, ret2;
+
+ debug("\nSerDes1 Lock check\n");
+ for (i = 0; i < CONFIG_SYS_FSL_SRDS_NUM_PLLS; i++) {
+ ret1 = check_pll_locks(srds1_regs, i);
+ if (ret1) {
+ printf("SerDes1, PLL:%d didnt lock\n", i);
+ return ret1;
+ }
+ }
+ debug("\nSerDes2 Lock check\n");
+ for (i = 0; i < CONFIG_SYS_FSL_SRDS_NUM_PLLS; i++) {
+ ret2 = check_pll_locks(srds2_regs, i);
+ if (ret2) {
+ printf("SerDes2, PLL:%d didnt lock\n", i);
+ return ret2;
+ }
+ }
+
+ return 0;
+}
+
int config_serdes1_refclks(void)
{
ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
/* Steps For SerDes PLLs reset and reconfiguration after
* changing SerDes's refclks
*/
- for (i = 0; i < PLL_NUM; i++) {
+ for (i = 0; i < CONFIG_SYS_FSL_SRDS_NUM_PLLS; i++) {
debug("For PLL%d reset and reconfiguration after"
" changing refclks\n", i+1);
clrbits_be32(&srds_regs->bank[i].rstctl,
if (!ret) {
ret = set_serdes_refclk(IDT_SERDES2_ADDRESS, 2,
SERDES_REFCLK_100,
- SERDES_REFCLK_100, 0);
+ SERDES_REFCLK_156_25, 0);
if (ret) {
printf("IDT8T49N222A configuration failed.\n");
goto out;
/* Steps For SerDes PLLs reset and reconfiguration after
* changing SerDes's refclks
*/
- for (i = 0; i < PLL_NUM; i++) {
+ for (i = 0; i < CONFIG_SYS_FSL_SRDS_NUM_PLLS; i++) {
clrbits_be32(&srds2_regs->bank[i].rstctl,
SRDS_RSTCTL_SDRST_B);
udelay(10);
setbits_be32(&srds2_regs->bank[i].rstctl,
(SRDS_RSTCTL_SDEN | SRDS_RSTCTL_PLLRST_B
| SRDS_RSTCTL_SDRST_B));
+
+ udelay(10);
}
break;
default:
else
printf("SerDes2 Refclk reconfiguring failed.\n");
+#if defined(CONFIG_SYS_FSL_ERRATUM_A006384) || \
+ defined(CONFIG_SYS_FSL_ERRATUM_A006475)
+ /* Rechecking the SerDes locks after all SerDes configurations
+ * are done, As SerDes PLLs may not lock reliably at 5 G VCO
+ * and at cold temperatures.
+ * Following sequence ensure the proper locking of SerDes PLLs.
+ */
+ if (SVR_MAJ(get_svr()) == 1) {
+ if (check_serdes_pll_locks())
+ printf("SerDes plls still not locked properly.\n");
+ else
+ printf("SerDes plls have been locked well.\n");
+ }
+#endif
+
/* Configure VSC3316 and VSC3308 crossbar switches */
if (configure_vsc3316_3308())
printf("VSC:failed to configure VSC3316/3308.\n");
projects / u-boot / blobdiff