diff options
Diffstat (limited to 'board/freescale/b4860qds/b4860qds.c')
| -rw-r--r-- | board/freescale/b4860qds/b4860qds.c | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/board/freescale/b4860qds/b4860qds.c b/board/freescale/b4860qds/b4860qds.c index e4f4bfd..f74651c 100644 --- a/board/freescale/b4860qds/b4860qds.c +++ b/board/freescale/b4860qds/b4860qds.c @@ -21,12 +21,14 @@ #include "../common/qixis.h" #include "../common/vsc3316_3308.h" +#include "../common/idt8t49n222a_serdes_clk.h" #include "b4860qds.h" #include "b4860qds_qixis.h" #include "b4860qds_crossbar_con.h" #define CLK_MUX_SEL_MASK 0x4 #define ETH_PHY_CLK_OUT 0x4 +#define PLL_NUM 2 DECLARE_GLOBAL_DATA_PTR; @@ -237,6 +239,106 @@ int configure_vsc3316_3308(void) return 0; } +int config_serdes1_refclks(void) +{ + ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); + serdes_corenet_t *srds_regs = + (void *)CONFIG_SYS_FSL_CORENET_SERDES_ADDR; + u32 serdes1_prtcl, lane; + unsigned int flag_sgmii_prtcl = 0; + int ret, i; + + serdes1_prtcl = in_be32(&gur->rcwsr[4]) & + FSL_CORENET2_RCWSR4_SRDS1_PRTCL; + if (!serdes1_prtcl) { + printf("SERDES1 is not enabled\n"); + return -1; + } + serdes1_prtcl >>= FSL_CORENET2_RCWSR4_SRDS1_PRTCL_SHIFT; + debug("Using SERDES1 Protocol: 0x%x:\n", serdes1_prtcl); + + /* Clear SRDS_RSTCTL_RST bit for both PLLs before changing refclks + */ + for (i = 0; i < PLL_NUM; i++) + clrbits_be32(&srds_regs->bank[i].rstctl, SRDS_RSTCTL_RST); + /* Reconfigure IDT idt8t49n222a device for CPRI to work + * For this SerDes1's Refclk1 and refclk2 need to be set + * to 122.88MHz + */ + switch (serdes1_prtcl) { + case 0x2A: + case 0x2C: + case 0x2D: + case 0x2E: + debug("Configuring idt8t49n222a for CPRI SerDes clks:" + " for srds_prctl:%x\n", serdes1_prtcl); + ret = select_i2c_ch_pca(I2C_CH_IDT); + if (!ret) { + ret = set_serdes_refclk(IDT_SERDES1_ADDRESS, 1, + SERDES_REFCLK_122_88, + SERDES_REFCLK_122_88, 0); + if (ret) { + printf("IDT8T49N222A configuration failed.\n"); + return ret; + } else + printf("IDT8T49N222A configured.\n"); + } else { + return ret; + } + select_i2c_ch_pca(I2C_CH_DEFAULT); + + /* Change SerDes1's Refclk1 to 125MHz for on board + * SGMIIs to work + */ + for (lane = 0; lane < SRDS_MAX_LANES; lane++) { + enum srds_prtcl lane_prtcl = serdes_get_prtcl + (0, serdes1_prtcl, lane); + switch (lane_prtcl) { + case SGMII_FM1_DTSEC1: + case SGMII_FM1_DTSEC2: + case SGMII_FM1_DTSEC3: + case SGMII_FM1_DTSEC4: + case SGMII_FM1_DTSEC5: + case SGMII_FM1_DTSEC6: + flag_sgmii_prtcl++; + break; + default: + break; + } + } + + if (flag_sgmii_prtcl) + QIXIS_WRITE(brdcfg[4], QIXIS_SRDS1CLK_125); + + /* Steps For SerDes PLLs reset and reconfiguration after + * changing SerDes's refclks + */ + for (i = 0; i < PLL_NUM; i++) { + debug("For PLL%d reset and reconfiguration after" + " changing refclks\n", i+1); + clrbits_be32(&srds_regs->bank[i].rstctl, + SRDS_RSTCTL_SDRST_B); + udelay(10); + clrbits_be32(&srds_regs->bank[i].rstctl, + (SRDS_RSTCTL_SDEN | SRDS_RSTCTL_PLLRST_B)); + udelay(10); + setbits_be32(&srds_regs->bank[i].rstctl, + SRDS_RSTCTL_RST); + setbits_be32(&srds_regs->bank[i].rstctl, + (SRDS_RSTCTL_SDEN | SRDS_RSTCTL_PLLRST_B + | SRDS_RSTCTL_SDRST_B)); + } + break; + default: + printf("WARNING:IDT8T49N222A configuration not" + " supported for:%x SerDes1 Protocol.\n", + serdes1_prtcl); + return -1; + } + + return 0; +} + int board_early_init_r(void) { const unsigned int flashbase = CONFIG_SYS_FLASH_BASE; @@ -262,6 +364,16 @@ int board_early_init_r(void) #ifdef CONFIG_SYS_DPAA_QBMAN setup_portals(); #endif + /* SerDes1 refclks need to be set again, as default clks + * are not suitable for CPRI and onboard SGMIIs to work + * simultaneously. + * This function will set SerDes1's Refclk1 and refclk2 + * as per SerDes1 protocols + */ + if (config_serdes1_refclks()) + printf("SerDes1 Refclks couldn't set properly.\n"); + else + printf("SerDes1 Refclks have been set.\n"); /* Configure VSC3316 and VSC3308 crossbar switches */ if (configure_vsc3316_3308()) |