convert brcm-2.4 to the new target structure

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7092 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 85 insertions, 0 deletions

diff --git a/target/linux/brcm-2.4/files/arch/mips/bcm947xx/include/sbsdram.h b/target/linux/brcm-2.4/files/arch/mips/bcm947xx/include/sbsdram.h
new file mode 100644
index 000000000..dec6c2928
--- /dev/null
+++ b/target/linux/brcm-2.4/files/arch/mips/bcm947xx/include/sbsdram.h
@@ -0,0 +1,85 @@
+/*
+ * BCM47XX Sonics SiliconBackplane SDRAM controller core hardware definitions.
+ *
+ * Copyright 2006, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * $Id: sbsdram.h,v 1.1.1.9 2006/03/02 13:03:52 honor Exp $
+ */
+
+#ifndef	_SBSDRAM_H
+#define	_SBSDRAM_H
+
+#ifndef _LANGUAGE_ASSEMBLY
+
+/* Sonics side: SDRAM core registers */
+typedef volatile struct sbsdramregs {
+	uint32	initcontrol;	/* Generates external SDRAM initialization sequence */
+	uint32	config;		/* Initializes external SDRAM mode register */
+	uint32	refresh;	/* Controls external SDRAM refresh rate */
+	uint32	pad1;
+	uint32	pad2;
+} sbsdramregs_t;
+
+/* SDRAM simulation */
+#ifdef RAMSZ
+#define	SDRAMSZ		RAMSZ
+#else
+#define SDRAMSZ		(4 * 1024 * 1024)
+#endif
+
+extern uchar sdrambuf[SDRAMSZ];
+
+#endif /* _LANGUAGE_ASSEMBLY */
+
+/* SDRAM initialization control (initcontrol) register bits */
+#define SDRAM_CBR	0x0001	/* Writing 1 generates refresh cycle and toggles bit */
+#define SDRAM_PRE	0x0002	/* Writing 1 generates precharge cycle and toggles bit */
+#define SDRAM_MRS	0x0004	/* Writing 1 generates mode register select cycle and toggles bit */
+#define SDRAM_EN	0x0008	/* When set, enables access to SDRAM */
+#define SDRAM_16Mb	0x0000	/* Use 16 Megabit SDRAM */
+#define SDRAM_64Mb	0x0010	/* Use 64 Megabit SDRAM */
+#define SDRAM_128Mb	0x0020	/* Use 128 Megabit SDRAM */
+#define SDRAM_RSVMb	0x0030	/* Use special SDRAM */
+#define SDRAM_RST	0x0080	/* Writing 1 causes soft reset of controller */
+#define SDRAM_SELFREF	0x0100	/* Writing 1 enables self refresh mode */
+#define SDRAM_PWRDOWN	0x0200	/* Writing 1 causes controller to power down */
+#define SDRAM_32BIT	0x0400	/* When set, indicates 32 bit SDRAM interface */
+#define SDRAM_9BITCOL	0x0800	/* When set, indicates 9 bit column */
+
+/* SDRAM configuration (config) register bits */
+#define SDRAM_BURSTFULL	0x0000	/* Use full page bursts */
+#define SDRAM_BURST8	0x0001	/* Use burst of 8 */
+#define SDRAM_BURST4	0x0002	/* Use burst of 4 */
+#define SDRAM_BURST2	0x0003	/* Use burst of 2 */
+#define SDRAM_CAS3	0x0000	/* Use CAS latency of 3 */
+#define SDRAM_CAS2	0x0004	/* Use CAS latency of 2 */
+
+/* SDRAM refresh control (refresh) register bits */
+#define SDRAM_REF(p)	(((p)&0xff) | SDRAM_REF_EN)	/* Refresh period */
+#define SDRAM_REF_EN	0x8000		/* Writing 1 enables periodic refresh */
+
+/* SDRAM Core default Init values (OCP ID 0x803) */
+#define SDRAM_INIT	MEM4MX16X2
+#define SDRAM_CONFIG    SDRAM_BURSTFULL
+#define SDRAM_REFRESH   SDRAM_REF(0x40)
+
+#define MEM1MX16	0x009	/* 2 MB */
+#define MEM1MX16X2	0x409	/* 4 MB */
+#define MEM2MX8X2	0x809	/* 4 MB */
+#define MEM2MX8X4	0xc09	/* 8 MB */
+#define MEM2MX32	0x439	/* 8 MB */
+#define MEM4MX16	0x019	/* 8 MB */
+#define MEM4MX16X2	0x419	/* 16 MB */
+#define MEM8MX8X2	0x819	/* 16 MB */
+#define MEM8MX16	0x829	/* 16 MB */
+#define MEM4MX32	0x429	/* 16 MB */
+#define MEM8MX8X4	0xc19	/* 32 MB */
+#define MEM8MX16X2	0xc29	/* 32 MB */
+
+#endif	/* _SBSDRAM_H */