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authorLinus Torvalds <torvalds@linux-foundation.org>2008-08-08 11:38:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-08 11:38:42 -0700
commit49b75b87ce2dfbd99e59a50c3681b154d07e3a22 (patch)
treef14e1da19a13d87a512f9043c2f37fd75dd122b3 /arch/avr32/mach-at32ap/include/mach/smc.h
parentf1c7f79b6ab4f7ada002a0fae47f462ede6b6857 (diff)
parent097d9eb537ff4d88b74c3fe67392e27c478ca3c5 (diff)
downloadblackbird-op-linux-49b75b87ce2dfbd99e59a50c3681b154d07e3a22.tar.gz
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Merge branch 'for-linus-merged' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus-merged' of master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 5177/1: arm/mach-sa1100/Makefile: remove CONFIG_SA1100_USB [ARM] 5166/1: magician: add MAINTAINERS entry [ARM] fix pnx4008 build errors [ARM] Fix SMP booting with non-zero PHYS_OFFSET [ARM] 5185/1: Fix spi num_chipselect for lubbock [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach [ARM] Add support for arch/arm/mach-*/include and arch/arm/plat-*/include [ARM] Remove asm/hardware.h, use asm/arch/hardware.h instead [ARM] Eliminate useless includes of asm/mach-types.h [ARM] Fix circular include dependency with IRQ headers avr32: Use <mach/foo.h> instead of <asm/arch/foo.h> avr32: Introduce arch/avr32/mach-*/include/mach avr32: Move include/asm-avr32 to arch/avr32/include/asm [ARM] sa1100_wdt: use reset_status to remember watchdog reset status [ARM] pxa: introduce reset_status and clear_reset_status for driver's usage [ARM] pxa: introduce reset.h for reset specific header information
Diffstat (limited to 'arch/avr32/mach-at32ap/include/mach/smc.h')
-rw-r--r--arch/avr32/mach-at32ap/include/mach/smc.h113
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 000000000000..c98eea44a70a
--- /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 */
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