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Diffstat (limited to 'arch/blackfin/include/asm/config-pre.h')
-rw-r--r--arch/blackfin/include/asm/config-pre.h80
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diff --git a/arch/blackfin/include/asm/config-pre.h b/arch/blackfin/include/asm/config-pre.h
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+/*
+ * config-pre.h - common defines for Blackfin boards in config.h
+ *
+ * Copyright (c) 2007-2009 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef __ASM_BLACKFIN_CONFIG_PRE_H__
+#define __ASM_BLACKFIN_CONFIG_PRE_H__
+
+/* Misc helper functions */
+#define XMK_STR(x) #x
+#define MK_STR(x) XMK_STR(x)
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+
+/* Bootmode defines -- your config needs to select this via CONFIG_BFIN_BOOT_MODE.
+ * Depending on your cpu, some of these may not be valid, check your HRM.
+ * The actual values here are meaningless as long as they're unique.
+ */
+#define BFIN_BOOT_BYPASS 1 /* bypass bootrom */
+#define BFIN_BOOT_PARA 2 /* boot ldr out of parallel flash */
+#define BFIN_BOOT_SPI_MASTER 3 /* boot ldr out of serial flash */
+#define BFIN_BOOT_SPI_SLAVE 4 /* boot ldr as spi slave */
+#define BFIN_BOOT_TWI_MASTER 5 /* boot ldr over twi device */
+#define BFIN_BOOT_TWI_SLAVE 6 /* boot ldr over twi slave */
+#define BFIN_BOOT_UART 7 /* boot ldr over uart */
+#define BFIN_BOOT_IDLE 8 /* do nothing, just idle */
+#define BFIN_BOOT_FIFO 9 /* boot ldr out of FIFO */
+#define BFIN_BOOT_MEM 10 /* boot ldr out of memory (warmboot) */
+#define BFIN_BOOT_16HOST_DMA 11 /* boot ldr from 16-bit host dma */
+#define BFIN_BOOT_8HOST_DMA 12 /* boot ldr from 8-bit host dma */
+#define BFIN_BOOT_NAND 13 /* boot ldr from nand flash */
+
+#ifndef __ASSEMBLY__
+static inline const char *get_bfin_boot_mode(int bfin_boot)
+{
+ switch (bfin_boot) {
+ case BFIN_BOOT_BYPASS: return "bypass";
+ case BFIN_BOOT_PARA: return "parallel flash";
+ case BFIN_BOOT_SPI_MASTER: return "spi flash";
+ case BFIN_BOOT_SPI_SLAVE: return "spi slave";
+ case BFIN_BOOT_TWI_MASTER: return "i2c flash";
+ case BFIN_BOOT_TWI_SLAVE: return "i2c slave";
+ case BFIN_BOOT_UART: return "uart";
+ case BFIN_BOOT_IDLE: return "idle";
+ case BFIN_BOOT_FIFO: return "fifo";
+ case BFIN_BOOT_MEM: return "memory";
+ case BFIN_BOOT_16HOST_DMA: return "16bit dma";
+ case BFIN_BOOT_8HOST_DMA: return "8bit dma";
+ case BFIN_BOOT_NAND: return "nand flash";
+ default: return "INVALID";
+ }
+}
+#endif
+
+/* Most bootroms allow for EVT1 redirection */
+#if ((defined(__ADSPBF531__) || defined(__ADSPBF532__) || defined(__ADSPBF533__)) \
+ && __SILICON_REVISION__ < 3) || defined(__ADSPBF561__)
+# undef CONFIG_BFIN_BOOTROM_USES_EVT1
+#else
+# define CONFIG_BFIN_BOOTROM_USES_EVT1
+#endif
+
+/* Define the default SPI CS used when booting out of SPI */
+#if defined(__ADSPBF531__) || defined(__ADSPBF532__) || defined(__ADSPBF533__) || \
+ defined(__ADSPBF538__) || defined(__ADSPBF539__) || defined(__ADSPBF561__) || \
+ defined(__ADSPBF51x__)
+# define BFIN_BOOT_SPI_SSEL 2
+#else
+# define BFIN_BOOT_SPI_SSEL 1
+#endif
+
+/* There is no Blackfin/NetBSD port */
+#undef CONFIG_BOOTM_NETBSD
+
+/* We rarely use interrupts, so favor throughput over latency */
+#define CONFIG_BFIN_INS_LOWOVERHEAD
+
+#endif