ARM: pxa: add pxa3xx architecture

Add the pxa3xx architecture, for pxa300, pxa310 and pxa320 SoCs.
This includes :
 - the registers
 - the cpu type
 - the reset source handling
 - a minimal set of clocks
 - pin control definitions
   In this last case, the big mfp-pxaxxx.h files were dropped, forcing
   board developers to use MFP_LPM_* macros cunningly.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 33 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/speed-pxa3xx.c b/arch/arm/mach-pxa/speed-pxa3xx.c
new file mode 100644
index 0000000000..6a08ea78f0
--- /dev/null
+++ b/arch/arm/mach-pxa/speed-pxa3xx.c
@@ -0,0 +1,33 @@
+/*
+ * clock.h - implementation of the PXA clock functions
+ *
+ * Copyright (C) 2014 by Robert Jarzmik <robert.jarzmik@free.fr>
+ *
+ * This file is released under the GPLv2
+ *
+ */
+
+#include <common.h>
+#include <mach/clock.h>
+#include <mach/pxa-regs.h>
+
+/* Crystal clock: 13MHz */
+#define BASE_CLK	13000000
+
+unsigned long pxa_get_uartclk(void)
+{
+	return 14857000;
+}
+
+unsigned long pxa_get_pwmclk(void)
+{
+	return BASE_CLK;
+}
+
+unsigned long pxa_get_nandclk(void)
+{
+	if (cpu_is_pxa320())
+		return 104000000;
+	else
+		return 156000000;
+}