mcuboot: add gnu support

iotdk: sysconf: bug fix in eflash clock initial

Signed-off-by: Watson Zeng <zhiwei@synopsys.com>

Author: IRISZZW

board/iotdk/drivers/sysconf/sysconf.c

@@ -94,10 +94,13 @@ void pll_conf_reg(uint32_t val)
 	         & (1 << PLLSTAT_BIT_OFFSET_PLLSTB)));
 
 	sysconf_reg_ptr->CLKSEL = CLKSEL_PLL;
+
+	/* AHB clk divisor = 1, Flash controller clock divider = 2 */
+	sysconf_reg_ptr->AHBCLKDIV = 0x201;
+
 	/* from AHB_CLK_DIVIDER, not from DVFSS&PMC */
 	sysconf_reg_ptr->AHBCLKDIV_SEL |= 1;
-	/* AHB clk divisor = 1 */
-	sysconf_reg_ptr->AHBCLKDIV = 0x1;
+
 }
 
 int32_t pll_fout_config(uint32_t freq)
@@ -378,5 +381,8 @@ void pwm_timer_pause(uint32_t id, uint32_t pause)
 
 void eflash_clk_div(uint8_t div)
 {
-	sysconf_reg_ptr->AHBCLKDIV |= (div << 8);
+	uint32_t val = sysconf_reg_ptr->AHBCLKDIV;
+	val &= (~(7 << 8));
+	val |= (div << 8);
+	sysconf_reg_ptr->AHBCLKDIV = val;
 }

board/linker_template_gnu.ld

@@ -3,17 +3,17 @@
 
 MEMORY
 {
-#if (ICCM_SIZE != 0)
-	ICCM :		ORIGIN = ICCM_START,	LENGTH = ICCM_SIZE
+#if (REGION_ICCM_SIZE != 0)
+	REGION_ICCM :		ORIGIN = REGION_ICCM_START,	LENGTH = REGION_ICCM_SIZE
 #endif
-#if (DCCM_SIZE !=0)
-	DCCM :		ORIGIN = DCCM_START,	LENGTH = DCCM_SIZE
+#if (REGION_DCCM_SIZE !=0)
+	REGION_DCCM :		ORIGIN = REGION_DCCM_START,	LENGTH = REGION_DCCM_SIZE
 #endif
-#if (EXT_ROM_SIZE != 0)
-	EXT_ROM :	ORIGIN = EXT_ROM_START,	LENGTH = EXT_ROM_SIZE
+#if (REGION_EXT_ROM_SIZE != 0)
+	REGION_EXT_ROM :	ORIGIN = REGION_EXT_ROM_START,	LENGTH = REGION_EXT_ROM_SIZE
 #endif
-#if (EXT_RAM_SIZE != 0)
-	EXT_RAM :	ORIGIN = EXT_RAM_START,	LENGTH = EXT_RAM_SIZE
+#if (REGION_EXT_RAM_SIZE != 0)
+	REGION_EXT_RAM :	ORIGIN = REGION_EXT_RAM_START,	LENGTH = REGION_EXT_RAM_SIZE
 #endif
 }