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Diffstat (limited to 'firmware/zpu/usrp2p/spi_flash_private.h')
-rw-r--r--firmware/zpu/usrp2p/spi_flash_private.h70
1 files changed, 70 insertions, 0 deletions
diff --git a/firmware/zpu/usrp2p/spi_flash_private.h b/firmware/zpu/usrp2p/spi_flash_private.h
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--- /dev/null
+++ b/firmware/zpu/usrp2p/spi_flash_private.h
@@ -0,0 +1,70 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2009 Free Software Foundation, Inc.
+ * Copyright 2009 Ettus Research LLC
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef INCLUDED_SPI_FLASH_PRIVATE_H
+#define INCLUDED_SPI_FLASH_PRIVATE_H
+
+#include "spi_flash.h"
+#include "spi.h"
+#include "memory_map.h"
+#include <string.h>
+
+
+/* M25P64 et al. */
+
+#define WREN_CMD 0x06 // write enable
+#define WRDI_CMD 0x04 // write disable
+#define RDID_CMD 0x9f // read identification
+#define RDSR_CMD 0x05 // read status register
+#define WRSR_CMD 0x01 // write status register
+#define READ_CMD 0x03
+#define FAST_READ_CMD 0x0b
+#define PP_CMD 0x02 // page program (256 bytes)
+#define SE_CMD 0xd8 // sector erase (64KB)
+#define BE_CMD 0xc7 // bulk erase (all)
+#define RES_CMD 0xab // read electronic sig (deprecated)
+
+/* Status register bits */
+
+#define SR_SRWD 0x80
+#define SR_BP2 0x10 // block protect bit 2
+#define SR_BP1 0x08 // block protect bit 1
+#define SR_BP0 0x04 // block protect bit 0
+#define SR_WEL 0x02 // Write Enable Latch
+#define SR_WIP 0x01 // Write in Progress. Set if busy w/ program or erase cycle.
+
+
+#define FLAGS (SPIF_PUSH_FALL | SPIF_LATCH_RISE)
+
+#define LEN(x) ((x) & SPI_CTRL_CHAR_LEN_MASK)
+
+
+static inline uint32_t
+min(uint32_t a, uint32_t b)
+{
+ return a < b ? a : b;
+}
+
+static inline uint32_t
+round_down(uint32_t x, uint32_t power_of_2)
+{
+ return x & -power_of_2;
+}
+
+#endif /* INCLUDED_SPI_FLASH_PRIVATE_H */