This patch is stolen from Anton Vorontsov's patch for mpc837xerdb boards.
The reference clk and xcorevdd voltage of serdes1/2 is same between mpc837xemds and mpc837xerdb.
8377E: LYNX1- 2 SATA LYNX2- 2 PCIE 8378E: LYNX1- 2 SGMII LYNX2- 2 PCIE 8379E: LYNX1- 2 SATA LYNX2- 2 SATA
Signed-off-by: Dave Liu daveliu@freescale.com --- board/freescale/mpc837xemds/mpc837xemds.c | 33 +++++++++++++++++++++++++++++ include/configs/MPC837XEMDS.h | 5 ++++ 2 files changed, 38 insertions(+), 0 deletions(-)
diff --git a/board/freescale/mpc837xemds/mpc837xemds.c b/board/freescale/mpc837xemds/mpc837xemds.c index e57a53f..6fbd0e0 100644 --- a/board/freescale/mpc837xemds/mpc837xemds.c +++ b/board/freescale/mpc837xemds/mpc837xemds.c @@ -12,6 +12,8 @@
#include <common.h> #include <i2c.h> +#include <asm/io.h> +#include <asm/fsl_serdes.h> #include <spd_sdram.h> #if defined(CONFIG_OF_LIBFDT) #include <libfdt.h> @@ -29,6 +31,37 @@ int board_early_init_f(void) /* Clear all of the interrupt of BCSR */ bcsr[0xe] = 0xff;
+#ifdef CONFIG_FSL_SERDES + immap_t *immr = (immap_t *)CFG_IMMR; + u32 spridr = in_be32(&immr->sysconf.spridr); + + /* we check only part num, and don't look for CPU revisions */ + switch (spridr >> 16) { + case SPR_8379E_REV10 >> 16: + case SPR_8379_REV10 >> 16: + fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_SATA, + FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V); + fsl_setup_serdes(CONFIG_FSL_SERDES2, FSL_SERDES_PROTO_SATA, + FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V); + break; + case SPR_8378E_REV10 >> 16: + case SPR_8378_REV10 >> 16: + fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_PEX, + FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V); + break; + case SPR_8377E_REV10 >> 16: + case SPR_8377_REV10 >> 16: + fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_SATA, + FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V); + fsl_setup_serdes(CONFIG_FSL_SERDES2, FSL_SERDES_PROTO_PEX, + FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V); + break; + default: + printf("serdes not configured: unknown CPU part number: " + "%04x\n", spridr >> 16); + break; + } +#endif /* CONFIG_FSL_SERDES */ return 0; }
diff --git a/include/configs/MPC837XEMDS.h b/include/configs/MPC837XEMDS.h index b307bf7..4006026 100644 --- a/include/configs/MPC837XEMDS.h +++ b/include/configs/MPC837XEMDS.h @@ -389,6 +389,11 @@ /* Options are: TSEC[0-1] */ #define CONFIG_ETHPRIME "eTSEC1"
+/* SERDES */ +#define CONFIG_FSL_SERDES +#define CONFIG_FSL_SERDES1 0xe3000 +#define CONFIG_FSL_SERDES2 0xe3100 + /* * Environment */