Added support for Texas Instrument cc26x2

Author: danielinux

Makefile

@@ -33,11 +33,16 @@ OBJS:= \
 ./lib/wolfssl/wolfcrypt/src/wolfmath.o \
 ./lib/wolfssl/wolfcrypt/src/fe_low_mem.o 
 
+## Target specific configuration
 
 ifeq ($(TARGET),samr21)
   CORTEX_M0=1
 endif
 
+
+
+## Signature
+
 ifeq ($(SIGN),ECC256)
   KEYGEN_TOOL=tools/ecc256/ecc256_keygen
   SIGN_TOOL=tools/ecc256/ecc256_sign
@@ -117,7 +122,6 @@ ifeq ($(VTOR),0)
 endif
 
 LDFLAGS:=-T $(LSCRIPT) -Wl,-gc-sections -Wl,-Map=wolfboot.map -ffreestanding -nostartfiles -mcpu=cortex-m3 -mthumb 
-
 ASFLAGS:=$(CFLAGS)
 
 all: factory.bin

hal/cc26x2.c

@@ -0,0 +1,112 @@
+/* cc26x2.c
+ *
+ * Copyright (C) 2018 wolfSSL Inc.
+ *
+ * This file is part of wolfBoot.
+ *
+ * wolfBoot 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.
+ *
+ * wolfBoot 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
+ */
+
+#include <stdint.h>
+
+#include "oscillators.h"
+#include "ti-lib.h"
+
+#include "target.h" /* For WOLFBOOT_SECTOR_SIZE */
+extern void clock_init(void);
+
+char uart_read(void)
+{
+    return (char)UARTCharGet(UART0_BASE);
+}
+
+int uart_read_nonblock(char *c)
+{
+    int ret = UARTCharGetNonBlocking(UART0_BASE);
+    if (ret == -1)
+        return 0;
+    *c = (char)ret;
+    return 1;
+}
+
+
+int hal_flash_write(uint32_t address, const uint8_t *data, int len)
+{
+    FlashProgram(data, address, len);
+    while(FlashCheckFsmForReady() != FAPI_STATUS_FSM_READY)
+                ;
+    return 0;
+}
+
+void hal_flash_unlock(void)
+{
+}
+
+void hal_flash_lock(void)
+{
+}
+
+
+int hal_flash_erase(uint32_t address, int len)
+{
+    int i = 0;
+    while (len > 0) {
+        FlashSectorErase(address + (WOLFBOOT_SECTOR_SIZE * i++));
+        while(FlashCheckFsmForReady() != FAPI_STATUS_FSM_READY)
+            ;
+
+        if (len <= WOLFBOOT_SECTOR_SIZE)
+            break;
+        len -= WOLFBOOT_SECTOR_SIZE;
+    }
+    return 0;
+}
+
+void hal_init(void)
+{
+    /* Enable flash cache and prefetch. */
+     ti_lib_vims_mode_set(VIMS_BASE, VIMS_MODE_ENABLED);
+     ti_lib_vims_configure(VIMS_BASE, true, true);
+
+     ti_lib_int_master_disable();
+
+     ti_lib_prcm_power_domain_on(PRCM_DOMAIN_PERIPH);
+     while((ti_lib_prcm_power_domain_status(PRCM_DOMAIN_PERIPH)
+           != PRCM_DOMAIN_POWER_ON))
+         ;
+
+     ti_lib_prcm_power_domain_on(PRCM_DOMAIN_SERIAL);
+     while ((ti_lib_prcm_power_domain_status(PRCM_DOMAIN_SERIAL)) != PRCM_DOMAIN_POWER_ON)
+         ;
+
+     ti_lib_prcm_peripheral_run_enable(PRCM_PERIPH_GPIO);
+     ti_lib_prcm_load_set();
+          while(!ti_lib_prcm_load_get())
+              ;
+     ti_lib_prcm_peripheral_run_enable(PRCM_PERIPH_UART0);
+
+     ti_lib_prcm_load_set();
+     while(!ti_lib_prcm_load_get())
+         ;
+
+     ti_lib_int_master_enable();
+
+    clock_init();
+}
+
+void hal_prepare_boot(void)
+{
+}
+

hal/cc26x2.ld

@@ -0,0 +1,51 @@
+MEMORY
+{
+    FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 0x0010000
+    RAM (rwx) :  ORIGIN = 0x20002800, LENGTH = 0xD800
+}
+
+SECTIONS
+{
+    .text :
+    {
+        _start_text = .;
+        KEEP(*(.isr_vector))
+        *(.text*)
+        *(.rodata*)
+        *(.init*)
+        *(.fini*)
+        . = ALIGN(4);
+        _end_text = .;
+    } > FLASH
+
+    .edidx :
+    {
+        . = ALIGN(4);
+        *(.ARM.exidx*)
+    } > FLASH
+
+    _stored_data = .;
+
+    .data : AT (_stored_data)
+    {
+        _start_data = .;
+        KEEP(*(.data*))
+        . = ALIGN(4);
+        _end_data = .;
+    } > RAM
+
+    .bss (NOLOAD) : 
+    {
+        _start_bss = .;
+        __bss_start__ = .;
+        *(.bss*)
+        *(COMMON)
+        . = ALIGN(4);
+        _end_bss = .;
+        __bss_end__ = .;
+        _end = .;
+    } > RAM
+    . = ALIGN(4);
+}
+
+END_STACK = ORIGIN(RAM) + LENGTH(RAM);