From c05ad5ef638f663510e83d4c3b9f0dab8fd973f8 Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Mon, 10 Mar 2014 11:23:50 -0600
Subject: [PATCH] Make sure that every reference to LM4F has corresponding
 logic for TM4C

---
 arch/arm/src/tiva/Kconfig           |  2 +-
 arch/arm/src/tiva/tiva_gpio.c       |  4 ++--
 arch/arm/src/tiva/tiva_gpio.h       | 14 ++++++++++----
 arch/arm/src/tiva/tiva_syscontrol.c |  8 ++++----
 4 files changed, 17 insertions(+), 11 deletions(-)

diff --git a/arch/arm/src/tiva/Kconfig b/arch/arm/src/tiva/Kconfig
index d798a23c1d..55231b97cc 100644
--- a/arch/arm/src/tiva/Kconfig
+++ b/arch/arm/src/tiva/Kconfig
@@ -48,7 +48,7 @@ config ARCH_CHIP_LM4F120
 	select ARCH_CHIP_LM4F
 	select ARCH_HAVE_FPU
 
-config CONFIG_ARCH_CHIP_TM4C123GH6ZRB
+config ARCH_CHIP_TM4C123GH6ZRB
 	bool "TM4C123GH6ZRB"
 	depends on ARCH_CHIP_TIVA
 	select ARCH_CORTEXM4
diff --git a/arch/arm/src/tiva/tiva_gpio.c b/arch/arm/src/tiva/tiva_gpio.c
index f9c477ccb6..335142ae9b 100644
--- a/arch/arm/src/tiva/tiva_gpio.c
+++ b/arch/arm/src/tiva/tiva_gpio.c
@@ -348,7 +348,7 @@ static void tiva_gpiofunc(uint32_t base, uint32_t pinno,
    * isolation circuitry for the corresponding GPIO signal.
    */
 
-#ifdef LM4F
+#if defined(LM4F) || defined(TM4C)
   setbit = (((uint32_t)func->setbits >> AMSEL_SHIFT) & 1) << pinno;
   clrbit = (((uint32_t)func->clrbits >> AMSEL_SHIFT) & 1) << pinno;
 
@@ -754,7 +754,7 @@ static inline void tiva_interrupt(uint32_t base, uint32_t pin, uint32_t cfgset)
  *
  ****************************************************************************/
 
-#ifdef LM4F
+#if defined(LM4F) || defined(TM4C)
 static inline void tiva_portcontrol(uint32_t base, uint32_t pinno,
                                     uint32_t cfgset,
                                     const struct gpio_func_s *func)
diff --git a/arch/arm/src/tiva/tiva_gpio.h b/arch/arm/src/tiva/tiva_gpio.h
index a0f46d8f60..5523aa81e2 100644
--- a/arch/arm/src/tiva/tiva_gpio.h
+++ b/arch/arm/src/tiva/tiva_gpio.h
@@ -59,12 +59,14 @@
  *
  * LM3S: FFFS SPPP III. .... .... .... VPPP PBBB
  * LM4F: FFFS SPPP III. AAAA .... .... VPPP PBBB
+ * TM4C: FFFS SPPP III. AAAA .... .... VPPP PBBB
  *
- * TODO: The LM4F also supports configuration of pins to trigger ADC and/or uDMA.
- * That configuratin is not addressed in this this encoding.
+ * TODO: The LM4F/TM4C also support configuration of pins to trigger ADC and/or uDMA.
+ * That configuration is not addressed in this this encoding.
  */
 
 /* These bits set the primary function of the pin:
+ *
  * FFFn .... .... .... .... .... .... ....
  */
 
@@ -84,6 +86,7 @@
 #  define GPIO_FUNC_MAX               GPIO_FUNC_INTERRUPT
 
 /* That primary may be modified by the following options
+ *
  * ...S SPPP .... .... .... .... .... ....
  */
 
@@ -106,6 +109,7 @@
 #  define GPIO_PADTYPE_ANALOG         (6 << GPIO_PADTYPE_SHIFT)  /*   Analog comparator */
 
 /* If the pin is an interrupt, then the following options apply
+ *
  * .... .... III. .... .... .... .... ....
  */
 
@@ -117,11 +121,13 @@
 #  define GPIO_INT_LOWLEVEL           (3 << GPIO_INT_SHIFT)      /*   Interrupt on low level */
 #  define GPIO_INT_HIGHLEVEL          (4 << GPIO_INT_SHIFT)      /*   Interrupt on high level */
 
-/* The LM4F120 supports up to 15 alternate functions per pin:
+/* The LM4F/TM4C supports up to 15 alternate functions per pin:
+ *
  * LM4F: .... .... .... AAAA .... .... .... ....
+ * TM4C: .... .... .... AAAA .... .... .... ....
  */
 
-#ifdef LM4F
+#if defined(LM4F) || defined(TM4C)
 #  define GPIO_ALT_SHIFT              16                         /* Bits 16-19: Alternate function */
 #  define GPIO_ALT_MASK               (15 << GPIO_ALT_SHIFT)
 #    define GPIO_ALT(n)               ((n) << GPIO_ALT_SHIFT)
diff --git a/arch/arm/src/tiva/tiva_syscontrol.c b/arch/arm/src/tiva/tiva_syscontrol.c
index e9f1c4cc9c..7b40c7bfb6 100644
--- a/arch/arm/src/tiva/tiva_syscontrol.c
+++ b/arch/arm/src/tiva/tiva_syscontrol.c
@@ -55,7 +55,7 @@
  * Pre-processor Definitions
  ****************************************************************************/
 
-#ifdef LM4F
+#if defined(LM4F) || defined(TM4C)
 #  define RCC_OSCMASK   (SYSCON_RCC_MOSCDIS)
 #  define RCC_XTALMASK  (SYSCON_RCC_XTAL_MASK | SYSCON_RCC_OSCSRC_MASK | \
                          SYSCON_RCC_PWRDN)
@@ -223,7 +223,7 @@ void tiva_clockconfig(uint32_t newrcc, uint32_t newrcc2)
    * on rest and if that is selected, most likely nothing needs to be done.
    */
 
-#ifdef LM4F
+#if defined(LM4F) || defined(TM4C)
   if ((rcc & SYSCON_RCC_MOSCDIS) && !(newrcc & SYSCON_RCC_MOSCDIS))
 #else
   if (((rcc & SYSCON_RCC_MOSCDIS) && !(newrcc & SYSCON_RCC_MOSCDIS)) ||
@@ -266,7 +266,7 @@ void tiva_clockconfig(uint32_t newrcc, uint32_t newrcc2)
    * before writing the RCC2 register.
    */
 
-#ifndef LM4F
+#if defined(LM4F) || defined(TM4C)
   if ((rcc2 & SYSCON_RCC2_USERCC2) != 0)
     {
       putreg32(rcc2, TIVA_SYSCON_RCC2);
@@ -314,7 +314,7 @@ void tiva_clockconfig(uint32_t newrcc, uint32_t newrcc2)
    */
 
   putreg32(rcc, TIVA_SYSCON_RCC);
-#ifdef LM4F
+#if defined(LM4F) || defined(TM4C)
   rcc = getreg32(TIVA_SYSCON_RCC);
 #endif
   putreg32(rcc2, TIVA_SYSCON_RCC2);