Merge commit 'v2.6.27-rc7' into x86/pebs

1 files changed, 113 insertions, 0 deletions

diff --git a/arch/avr32/mach-at32ap/include/mach/smc.h b/arch/avr32/mach-at32ap/include/mach/smc.h
new file mode 100644
index 00000000000..c98eea44a70
--- /dev/null
+++ b/arch/avr32/mach-at32ap/include/mach/smc.h
@@ -0,0 +1,113 @@
+/*
+ * Static Memory Controller for AT32 chips
+ *
+ * Copyright (C) 2006 Atmel Corporation
+ *
+ * Inspired by the OMAP2 General-Purpose Memory Controller interface
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ARCH_AT32AP_SMC_H
+#define __ARCH_AT32AP_SMC_H
+
+/*
+ * All timing parameters are in nanoseconds.
+ */
+struct smc_timing {
+	/* Delay from address valid to assertion of given strobe */
+	int ncs_read_setup;
+	int nrd_setup;
+	int ncs_write_setup;
+	int nwe_setup;
+
+	/* Pulse length of given strobe */
+	int ncs_read_pulse;
+	int nrd_pulse;
+	int ncs_write_pulse;
+	int nwe_pulse;
+
+	/* Total cycle length of given operation */
+	int read_cycle;
+	int write_cycle;
+
+	/* Minimal recovery times, will extend cycle if needed */
+	int ncs_read_recover;
+	int nrd_recover;
+	int ncs_write_recover;
+	int nwe_recover;
+};
+
+/*
+ * All timing parameters are in clock cycles.
+ */
+struct smc_config {
+
+	/* Delay from address valid to assertion of given strobe */
+	u8		ncs_read_setup;
+	u8		nrd_setup;
+	u8		ncs_write_setup;
+	u8		nwe_setup;
+
+	/* Pulse length of given strobe */
+	u8		ncs_read_pulse;
+	u8		nrd_pulse;
+	u8		ncs_write_pulse;
+	u8		nwe_pulse;
+
+	/* Total cycle length of given operation */
+	u8		read_cycle;
+	u8		write_cycle;
+
+	/* Bus width in bytes */
+	u8		bus_width;
+
+	/*
+	 * 0: Data is sampled on rising edge of NCS
+	 * 1: Data is sampled on rising edge of NRD
+	 */
+	unsigned int	nrd_controlled:1;
+
+	/*
+	 * 0: Data is driven on falling edge of NCS
+	 * 1: Data is driven on falling edge of NWR
+	 */
+	unsigned int	nwe_controlled:1;
+
+	/*
+	 * 0: NWAIT is disabled
+	 * 1: Reserved
+	 * 2: NWAIT is frozen mode
+	 * 3: NWAIT in ready mode
+	 */
+	unsigned int	nwait_mode:2;
+
+	/*
+	 * 0: Byte select access type
+	 * 1: Byte write access type
+	 */
+	unsigned int	byte_write:1;
+
+	/*
+	 * Number of clock cycles before data is released after
+	 * the rising edge of the read controlling signal
+	 *
+	 * Total cycles from SMC is tdf_cycles + 1
+	 */
+	unsigned int	tdf_cycles:4;
+
+	/*
+	 * 0: TDF optimization disabled
+	 * 1: TDF optimization enabled
+	 */
+	unsigned int	tdf_mode:1;
+};
+
+extern void smc_set_timing(struct smc_config *config,
+			   const struct smc_timing *timing);
+
+extern int smc_set_configuration(int cs, const struct smc_config *config);
+extern struct smc_config *smc_get_configuration(int cs);
+
+#endif /* __ARCH_AT32AP_SMC_H */