Merge tag 'xilinx-for-v2020.01' of https://gitlab.denx.de/u-boot/custodians/u-boot...

[platform/kernel/u-boot.git] / board / xilinx / microblaze-generic / microblaze-generic.c

diff --git a/board/xilinx/microblaze-generic/microblaze-generic.c b/board/xilinx/microblaze-generic/microblaze-generic.c
index a3122da..7e784d1 100644 (file)
--- a/board/xilinx/microblaze-generic/microblaze-generic.c
+++ b/board/xilinx/microblaze-generic/microblaze-generic.c
@@ -1,122 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
- * (C) Copyright 2007 Michal Simek
+ * (C) Copyright 2007-2018 Michal Simek
  *
- * Michal  SIMEK <monstr@monstr.eu>
- *
- * SPDX-License-Identifier:    GPL-2.0+
+ * Michal SIMEK <monstr@monstr.eu>
  */
 
-/* This is a board specific file.  It's OK to include board specific
- * header files */
+/*
+ * This is a board specific file.  It's OK to include board specific
+ * header files
+ */
 
 #include <common.h>
 #include <config.h>
+#include <dm/lists.h>
 #include <fdtdec.h>
-#include <netdev.h>
-#include <asm/processor.h>
-#include <asm/microblaze_intc.h>
-#include <asm/asm.h>
-#include <asm/gpio.h>
+#include <linux/sizes.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#ifdef CONFIG_XILINX_GPIO
-static int reset_pin = -1;
-#endif
-
-#if CONFIG_IS_ENABLED(OF_CONTROL)
-ulong ram_base;
-
-void dram_init_banksize(void)
+int dram_init_banksize(void)
 {
-       gd->bd->bi_dram[0].start = ram_base;
-       gd->bd->bi_dram[0].size = get_effective_memsize();
+       return fdtdec_setup_memory_banksize();
 }
 
 int dram_init(void)
 {
-       int node;
-       fdt_addr_t addr;
-       fdt_size_t size;
-       const void *blob = gd->fdt_blob;
-
-       node = fdt_node_offset_by_prop_value(blob, -1, "device_type",
-                                            "memory", 7);
-       if (node == -FDT_ERR_NOTFOUND) {
-               debug("DRAM: Can't get memory node\n");
-               return 1;
-       }
-       addr = fdtdec_get_addr_size(blob, node, "reg", &size);
-       if (addr == FDT_ADDR_T_NONE || size == 0) {
-               debug("DRAM: Can't get base address or size\n");
-               return 1;
-       }
-       ram_base = addr;
-
-       gd->ram_top = addr; /* In setup_dest_addr() is done +ram_size */
-       gd->ram_size = size;
+       if (fdtdec_setup_mem_size_base() != 0)
+               return -EINVAL;
 
        return 0;
 };
-#else
-int dram_init(void)
-{
-       gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
-
-       return 0;
-}
-#endif
 
-int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+int board_late_init(void)
 {
-#ifndef CONFIG_SPL_BUILD
-#ifdef CONFIG_XILINX_GPIO
-       if (reset_pin != -1)
-               gpio_direction_output(reset_pin, 1);
-#endif
-
-#ifdef CONFIG_XILINX_TB_WATCHDOG
-       hw_watchdog_disable();
-#endif
-#endif
-       puts ("Reseting board\n");
-       __asm__ __volatile__ (" mts rmsr, r0;" \
-                               "bra r0");
+       ulong max_size, lowmem_size;
 
-       return 0;
-}
+#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_SYSRESET_MICROBLAZE)
+       int ret;
 
-int gpio_init (void)
-{
-#ifdef CONFIG_XILINX_GPIO
-       reset_pin = gpio_alloc(CONFIG_SYS_GPIO_0_ADDR, "reset", 1);
-       if (reset_pin != -1)
-               gpio_request(reset_pin, "reset_pin");
+       ret = device_bind_driver(gd->dm_root, "mb_soft_reset",
+                                "reset_soft", NULL);
+       if (ret)
+               printf("Warning: No reset driver: ret=%d\n", ret);
 #endif
-       return 0;
-}
 
-void board_init(void)
-{
-       gpio_init();
-}
+       if (!(gd->flags & GD_FLG_ENV_DEFAULT)) {
+               debug("Saved variables - Skipping\n");
+               return 0;
+       }
 
-int board_eth_init(bd_t *bis)
-{
-       int ret = 0;
+       max_size = gd->start_addr_sp - CONFIG_STACK_SIZE;
+       max_size = round_down(max_size, SZ_16M);
 
-#if defined(CONFIG_XILINX_EMACLITE) && defined(XILINX_EMACLITE_BASEADDR)
-       u32 txpp = 0;
-       u32 rxpp = 0;
-# ifdef CONFIG_XILINX_EMACLITE_TX_PING_PONG
-       txpp = 1;
-# endif
-# ifdef CONFIG_XILINX_EMACLITE_RX_PING_PONG
-       rxpp = 1;
-# endif
-       ret |= xilinx_emaclite_initialize(bis, XILINX_EMACLITE_BASEADDR,
-                       txpp, rxpp);
-#endif
+       /* Linux default LOWMEM_SIZE is 0x30000000 = 768MB */
+       lowmem_size = gd->ram_base + 768 * 1024 * 1024;
 
-       return ret;
+       env_set_addr("initrd_high", (void *)min_t(ulong, max_size,
+                                                 lowmem_size));
+       env_set_addr("fdt_high", (void *)min_t(ulong, max_size, lowmem_size));
+
+       return 0;
 }