platform: kendryte/k210: fixup FDT

When passing the device tree to the next stage we should apply necessary
device tree fix-ups first. These include:

* fix up the CPU node in the device tree
* fix up the PLIC node in the device tree
* fix up the reserved memory node in the device tree

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Atish Patra <atish.patra@wdc.com>

diff --git a/platform/kendryte/k210/platform.c b/platform/kendryte/k210/platform.c
index 5c28fd9..75883ed 100644 (file)
--- a/platform/kendryte/k210/platform.c
+++ b/platform/kendryte/k210/platform.c
@@ -12,6 +12,7 @@
 #include <sbi/sbi_console.h>
 #include <sbi/sbi_const.h>
 #include <sbi/sbi_platform.h>
+#include <sbi_utils/fdt/fdt_fixup.h>
 #include <sbi_utils/irqchip/plic.h>
 #include <sbi_utils/serial/sifive-uart.h>
 #include <sbi_utils/sys/clint.h>
@@ -67,6 +68,21 @@ static u32 k210_get_clk_freq(void)
        return pll0_freq / div;
 }
 
+static int k210_final_init(bool cold_boot)
+{
+       void *fdt;
+
+       if (!cold_boot)
+               return 0;
+
+       fdt = sbi_scratch_thishart_arg1_ptr();
+
+       fdt_cpu_fixup(fdt);
+       fdt_fixups(fdt);
+
+       return 0;
+}
+
 static int k210_console_init(void)
 {
        return sifive_uart_init(K210_UART_BASE_ADDR, k210_get_clk_freq(),
@@ -122,6 +138,8 @@ static int k210_system_reset(u32 type)
 }
 
 const struct sbi_platform_operations platform_ops = {
+       .final_init     = k210_final_init,
+
        .console_init   = k210_console_init,
        .console_putc   = sifive_uart_putc,
        .console_getc   = sifive_uart_getc,