Add GPL-2.0+ SPDX-License-Identifier to source files

[karo-tx-uboot.git] / arch / powerpc / cpu / mpc85xx / mpc8536_serdes.c

diff --git a/arch/powerpc/cpu/mpc85xx/mpc8536_serdes.c b/arch/powerpc/cpu/mpc85xx/mpc8536_serdes.c
index 7e72f5fb7c78958af989f019f45870c469e4594d..baf52d549f6b288caa9c5fb0e95613d7b31eb8a7 100644 (file)
--- a/arch/powerpc/cpu/mpc85xx/mpc8536_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/mpc8536_serdes.c
@@ -2,23 +2,7 @@
  * Copyright 2008,2010 Freescale Semiconductor, Inc.
  *     Dave Liu <daveliu@freescale.com>
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <config.h>
@@ -66,10 +50,11 @@
 #define FSL_SRDSCR3_LANEE_SGMII        0x00000000
 #define FSL_SRDSCR3_LANEE_SATA 0x00150005
 
-
 #define SRDS1_MAX_LANES                8
 #define SRDS2_MAX_LANES                2
 
+static u32 serdes1_prtcl_map, serdes2_prtcl_map;
+
 static u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = {
        [0x2] = {PCIE1, PCIE1, PCIE1, PCIE1, NONE, NONE, NONE, NONE},
        [0x3] = {PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1},
@@ -86,39 +71,12 @@ static u8 serdes2_cfg_tbl[][SRDS2_MAX_LANES] = {
 
 int is_serdes_configured(enum srds_prtcl device)
 {
-       int i;
-       ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
-       u32 pordevsr = in_be32(&gur->pordevsr);
-       u32 srds1_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >>
-                               MPC85xx_PORDEVSR_IO_SEL_SHIFT;
-
-       u32 srds2_cfg = (pordevsr & MPC85xx_PORDEVSR_SRDS2_IO_SEL) >>
-                               GUTS_PORDEVSR_SERDES2_IO_SEL_SHIFT;
-
-       debug("%s: dev = %d\n", __FUNCTION__, device);
-       debug("PORDEVSR[IO_SEL] = %x\n", srds1_cfg);
-       debug("PORDEVSR[SRDS2_IO_SEL] = %x\n", srds2_cfg);
-
-       if (srds1_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) {
-               printf("Invalid PORDEVSR[IO_SEL] = %d\n", srds1_cfg);
-               return 0;
-       }
-
-       if (srds2_cfg > ARRAY_SIZE(serdes2_cfg_tbl)) {
-               printf("Invalid PORDEVSR[SRDS2_IO_SEL] = %d\n", srds2_cfg);
-               return 0;
-       }
+       int ret = (1 << device) & serdes1_prtcl_map;
 
-       for (i = 0; i < SRDS1_MAX_LANES; i++) {
-               if (serdes1_cfg_tbl[srds1_cfg][i] == device)
-                       return 1;
-       }
-       for (i = 0; i < SRDS2_MAX_LANES; i++) {
-               if (serdes2_cfg_tbl[srds2_cfg][i] == device)
-                       return 1;
-       }
+       if (ret)
+               return ret;
 
-       return 0;
+       return (1 << device) & serdes2_prtcl_map;
 }
 
 void fsl_serdes_init(void)
@@ -126,13 +84,20 @@ void fsl_serdes_init(void)
        void *guts = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
        void *sd = (void *)CONFIG_SYS_MPC85xx_SERDES2_ADDR;
        u32 pordevsr = in_be32(guts + GUTS_PORDEVSR_OFFS);
-       u32 srds2_io_sel;
+       u32 srds1_io_sel, srds2_io_sel;
        u32 tmp;
+       int lane;
+
+       srds1_io_sel = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >>
+                               MPC85xx_PORDEVSR_IO_SEL_SHIFT;
 
        /* parse the SRDS2_IO_SEL of PORDEVSR */
        srds2_io_sel = (pordevsr & GUTS_PORDEVSR_SERDES2_IO_SEL)
                       >> GUTS_PORDEVSR_SERDES2_IO_SEL_SHIFT;
 
+       debug("PORDEVSR[SRDS1_IO_SEL] = %x\n", srds1_io_sel);
+       debug("PORDEVSR[SRDS2_IO_SEL] = %x\n", srds2_io_sel);
+
        switch (srds2_io_sel) {
        case 1: /* Lane A - SATA1, Lane E - SATA2 */
                /* CR 0 */
@@ -246,4 +211,23 @@ void fsl_serdes_init(void)
        default:
                break;
        }
+
+       if (srds1_io_sel >= ARRAY_SIZE(serdes1_cfg_tbl)) {
+               printf("Invalid PORDEVSR[SRDS1_IO_SEL] = %d\n", srds1_io_sel);
+               return;
+       }
+       for (lane = 0; lane < SRDS1_MAX_LANES; lane++) {
+               enum srds_prtcl lane_prtcl = serdes1_cfg_tbl[srds1_io_sel][lane];
+               serdes1_prtcl_map |= (1 << lane_prtcl);
+       }
+
+       if (srds2_io_sel >= ARRAY_SIZE(serdes2_cfg_tbl)) {
+               printf("Invalid PORDEVSR[SRDS2_IO_SEL] = %d\n", srds2_io_sel);
+               return;
+       }
+
+       for (lane = 0; lane < SRDS2_MAX_LANES; lane++) {
+               enum srds_prtcl lane_prtcl = serdes2_cfg_tbl[srds2_io_sel][lane];
+               serdes2_prtcl_map |= (1 << lane_prtcl);
+       }
 }