+# SPDX-License-Identifier: GPL-2.0-or-later
-set RCC_CR [expr $RCC_BASE + 0x00]
-set RCC_CFGR [expr $RCC_BASE + 0x04]
-set RCC_CIR [expr $RCC_BASE + 0x08]
-set RCC_APB2RSTR [expr $RCC_BASE + 0x0c]
-set RCC_APB1RSTR [expr $RCC_BASE + 0x10]
-set RCC_AHBENR [expr $RCC_BASE + 0x14]
-set RCC_APB2ENR [expr $RCC_BASE + 0x18]
-set RCC_APB1ENR [expr $RCC_BASE + 0x1c]
-set RCC_BDCR [expr $RCC_BASE + 0x20]
-set RCC_CSR [expr $RCC_BASE + 0x24]
+set RCC_CR [expr {$RCC_BASE + 0x00}]
+set RCC_CFGR [expr {$RCC_BASE + 0x04}]
+set RCC_CIR [expr {$RCC_BASE + 0x08}]
+set RCC_APB2RSTR [expr {$RCC_BASE + 0x0c}]
+set RCC_APB1RSTR [expr {$RCC_BASE + 0x10}]
+set RCC_AHBENR [expr {$RCC_BASE + 0x14}]
+set RCC_APB2ENR [expr {$RCC_BASE + 0x18}]
+set RCC_APB1ENR [expr {$RCC_BASE + 0x1c}]
+set RCC_BDCR [expr {$RCC_BASE + 0x20}]
+set RCC_CSR [expr {$RCC_BASE + 0x24}]
proc show_RCC_CR { } {