board: sdhc: Use block layer to read from mmc

[oweals/u-boot.git] / board / freescale / common / ngpixis.c

diff --git a/board/freescale/common/ngpixis.c b/board/freescale/common/ngpixis.c
index 4e01e5a0a2e6660eb202b5d9514c8ac4876ad788..d7254010bff7513a409685f0a5601cf5c780e13c 100644 (file)
--- a/board/freescale/common/ngpixis.c
+++ b/board/freescale/common/ngpixis.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /**
  * Copyright 2010-2011 Freescale Semiconductor
  * Author: Timur Tabi <timur@freescale.com>
  *
- * 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 file provides support for the ngPIXIS, a board-specific FPGA used on
  * some Freescale reference boards.
  *
@@ -119,11 +115,70 @@ void __set_altbank(void)
 }
 void set_altbank(void) __attribute__((weak, alias("__set_altbank")));
 
+#ifdef DEBUG
+static void pixis_dump_regs(void)
+{
+       unsigned int i;
+
+       printf("id=%02x\n", PIXIS_READ(id));
+       printf("arch=%02x\n", PIXIS_READ(arch));
+       printf("scver=%02x\n", PIXIS_READ(scver));
+       printf("csr=%02x\n", PIXIS_READ(csr));
+       printf("rst=%02x\n", PIXIS_READ(rst));
+       printf("aux=%02x\n", PIXIS_READ(aux));
+       printf("spd=%02x\n", PIXIS_READ(spd));
+       printf("brdcfg0=%02x\n", PIXIS_READ(brdcfg0));
+       printf("brdcfg1=%02x\n", PIXIS_READ(brdcfg1));
+       printf("addr=%02x\n", PIXIS_READ(addr));
+       printf("data=%02x\n", PIXIS_READ(data));
+       printf("led=%02x\n", PIXIS_READ(led));
+       printf("vctl=%02x\n", PIXIS_READ(vctl));
+       printf("vstat=%02x\n", PIXIS_READ(vstat));
+       printf("vcfgen0=%02x\n", PIXIS_READ(vcfgen0));
+       printf("ocmcsr=%02x\n", PIXIS_READ(ocmcsr));
+       printf("ocmmsg=%02x\n", PIXIS_READ(ocmmsg));
+       printf("gmdbg=%02x\n", PIXIS_READ(gmdbg));
+       printf("sclk=%02x%02x%02x\n",
+              PIXIS_READ(sclk[0]), PIXIS_READ(sclk[1]), PIXIS_READ(sclk[2]));
+       printf("dclk=%02x%02x%02x\n",
+              PIXIS_READ(dclk[0]), PIXIS_READ(dclk[1]), PIXIS_READ(dclk[2]));
+       printf("watch=%02x\n", PIXIS_READ(watch));
+
+       for (i = 0; i < 8; i++) {
+               printf("SW%u=%02x/%02x ", i + 1,
+                       PIXIS_READ(s[i].sw), PIXIS_READ(s[i].en));
+       }
+       putc('\n');
+}
+#endif
+
+void pixis_sysclk_set(unsigned long sysclk)
+{
+       unsigned long freq_word;
+       u8 sclk0, sclk1, sclk2;
+
+       freq_word = ics307_sysclk_calculator(sysclk);
+       sclk2 = freq_word & 0xff;
+       sclk1 = (freq_word >> 8) & 0xff;
+       sclk0 = (freq_word >> 16) & 0xff;
+
+       /* set SYSCLK enable bit */
+       PIXIS_WRITE(vcfgen0, 0x01);
+
+       /* SYSCLK to required frequency */
+       PIXIS_WRITE(sclk[0], sclk0);
+       PIXIS_WRITE(sclk[1], sclk1);
+       PIXIS_WRITE(sclk[2], sclk2);
+}
 
 int pixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
        unsigned int i;
+       unsigned long sysclk;
        char *p_altbank = NULL;
+#ifdef DEBUG
+       char *p_dump = NULL;
+#endif
        char *unknown_param = NULL;
 
        /* No args is a simple reset request.
@@ -137,6 +192,19 @@ int pixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
                        continue;
                }
 
+#ifdef DEBUG
+               if (strcmp(argv[i], "dump") == 0) {
+                       p_dump = argv[i];
+                       continue;
+               }
+#endif
+               if (strcmp(argv[i], "sysclk") == 0) {
+                       sysclk = simple_strtoul(argv[i + 1], NULL, 0);
+                       i += 1;
+                       pixis_sysclk_set(sysclk);
+                       continue;
+               }
+
                unknown_param = argv[i];
        }
 
@@ -145,6 +213,15 @@ int pixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
                return 1;
        }
 
+#ifdef DEBUG
+       if (p_dump) {
+               pixis_dump_regs();
+
+               /* 'dump' ignores other commands */
+               return 0;
+       }
+#endif
+
        if (p_altbank)
                set_altbank();
        else
@@ -156,9 +233,17 @@ int pixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
        return 0;
 }
 
-U_BOOT_CMD(
-       pixis_reset, CONFIG_SYS_MAXARGS, 1, pixis_reset_cmd,
-       "Reset the board using the FPGA sequencer",
+#ifdef CONFIG_SYS_LONGHELP
+static char pixis_help_text[] =
        "- hard reset to default bank\n"
        "pixis_reset altbank - reset to alternate bank\n"
+#ifdef DEBUG
+       "pixis_reset dump - display the PIXIS registers\n"
+#endif
+       "pixis_reset sysclk <SYSCLK_freq> - reset with SYSCLK frequency(KHz)\n";
+#endif
+
+U_BOOT_CMD(
+       pixis_reset, CONFIG_SYS_MAXARGS, 1, pixis_reset_cmd,
+       "Reset the board using the FPGA sequencer", pixis_help_text
        );