ARM: at91: debug: use DEBUG_UART_PHYS

Instead of having to add a new configuration option each time support for
new SoC is added, use CONFIG_DEBUG_UART_PHYS. For now,
CONFIG_DEBUG_UART_VIRT is automatically computed.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 0cfd7f9..abf65b6 100644 (file)
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -123,29 +123,23 @@ choice
                    0x80020000      | 0xf0020000     | UART8
                    0x80024000      | 0xf0024000     | UART9
 
-       config AT91_DEBUG_LL_DBGU0
-               bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10, 9rl, 9x5, 9n12"
-               select DEBUG_AT91_UART
+       config DEBUG_AT91_UART
+               bool "Kernel low-level debugging on Atmel SoCs"
                depends on ARCH_AT91
-               depends on SOC_AT91RM9200 || SOC_AT91SAM9
+               help
+                 Say Y here if you want the debug print routines to direct
+                 their output to the serial port on atmel devices.
 
-       config AT91_DEBUG_LL_DBGU1
-               bool "Kernel low-level debugging on 9263, 9g45 and sama5d3"
-               select DEBUG_AT91_UART
-               depends on ARCH_AT91
-               depends on SOC_AT91SAM9 || SOC_SAMA5
+                 SOC                  DEBUG_UART_PHYS   DEBUG_UART_VIRT  PORT
+                 rm9200, 9260/9g20,   0xfffff200        0xfefff200       DBGU
+                 9261/9g10, 9rl
+                 9263, 9g45, sama5d3  0xffffee00        0xfeffee00       DBGU
+                 sama5d4              0xfc00c000        0xfb00c000       USART3
+                 sama5d4              0xfc069000        0xfb069000       DBGU
+                 sama5d2              0xf8020000        0xf7020000       UART1
 
-       config AT91_DEBUG_LL_DBGU2
-               bool "Kernel low-level debugging on sama5d4"
-               select DEBUG_AT91_UART
-               depends on ARCH_AT91
-               depends on SOC_SAMA5
-
-       config AT91_DEBUG_LL_DBGU3
-               bool "Kernel low-level debugging on sama5d2"
-               select DEBUG_AT91_UART
-               depends on ARCH_AT91
-               depends on SOC_SAMA5
+                 Please adjust DEBUG_UART_PHYS configuration options based on
+                 your needs.
 
        config DEBUG_BCM2835
                bool "Kernel low-level debugging on BCM2835 PL011 UART"
@@ -1249,10 +1243,6 @@ choice
 
 endchoice
 
-config DEBUG_AT91_UART
-       bool
-       depends on ARCH_AT91
-
 config DEBUG_EXYNOS_UART
        bool
 
@@ -1485,7 +1475,8 @@ config DEBUG_UART_PHYS
                DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
                DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
                DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \
-               DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0
+               DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
+               DEBUG_AT91_UART
 
 config DEBUG_UART_VIRT
        hex "Virtual base address of debug UART"

diff --git a/arch/arm/include/debug/at91.S b/arch/arm/include/debug/at91.S
index 2556a88..43243be 100644 (file)
--- a/arch/arm/include/debug/at91.S
+++ b/arch/arm/include/debug/at91.S
@@ -9,32 +9,22 @@
  *
 */
 
-#if defined(CONFIG_AT91_DEBUG_LL_DBGU0)
-#define AT91_DBGU 0xfffff200 /* AT91_BASE_DBGU0 */
-#elif defined(CONFIG_AT91_DEBUG_LL_DBGU1)
-#define AT91_DBGU 0xffffee00 /* AT91_BASE_DBGU1 */
-#elif defined(CONFIG_AT91_DEBUG_LL_DBGU2)
-/* On sama5d4, use USART3 as low level serial console */
-#define AT91_DBGU 0xfc00c000 /* SAMA5D4_BASE_USART3 */
-#else
-/* On sama5d2, use UART1 as low level serial console */
-#define AT91_DBGU 0xf8020000
-#endif
-
 #ifdef CONFIG_MMU
 #define AT91_IO_P2V(x) ((x) - 0x01000000)
 #else
 #define AT91_IO_P2V(x) (x)
 #endif
 
+#define CONFIG_DEBUG_UART_VIRT AT91_IO_P2V(CONFIG_DEBUG_UART_PHYS)
+
 #define AT91_DBGU_SR           (0x14)  /* Status Register */
 #define AT91_DBGU_THR          (0x1c)  /* Transmitter Holding Register */
 #define AT91_DBGU_TXRDY                (1 << 1)        /* Transmitter Ready */
 #define AT91_DBGU_TXEMPTY      (1 << 9)        /* Transmitter Empty */
 
        .macro  addruart, rp, rv, tmp
-       ldr     \rp, =AT91_DBGU                         @ System peripherals (phys address)
-       ldr     \rv, =AT91_IO_P2V(AT91_DBGU)            @ System peripherals (virt address)
+       ldr     \rp, =CONFIG_DEBUG_UART_PHYS            @ System peripherals (phys address)
+       ldr     \rv, =CONFIG_DEBUG_UART_VIRT            @ System peripherals (virt address)
        .endm
 
        .macro  senduart,rd,rx