at91: add support for the PM9263 board of Ronetix GmbH

The PM9263 board is based on the AT91SAM9263-EK board.

Here is the page on Ronetix website:
http://www.ronetix.at/starter_kit_9263.html

Signed-off-by: Ilko Iliev <iliev@ronetix.at>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

3 files changed, 105 insertions, 0 deletions

diff --git a/include/asm-arm/arch-at91/at91sam9263.h b/include/asm-arm/arch-at91/at91sam9263.h
index 98251cb..07b265f 100644
--- a/include/asm-arm/arch-at91/at91sam9263.h
+++ b/include/asm-arm/arch-at91/at91sam9263.h
@@ -106,6 +106,7 @@
 #define AT91_USART2	AT91SAM9263_BASE_US2
 
 #define AT91_SMC	AT91_SMC0
+#define AT91_SDRAMC	AT91_SDRAMC0
 
 /*
  * Internal Memory.
diff --git a/include/asm-arm/arch-at91/at91sam9_sdramc.h b/include/asm-arm/arch-at91/at91sam9_sdramc.h
new file mode 100644
index 0000000..5af2b54
--- /dev/null
+++ b/include/asm-arm/arch-at91/at91sam9_sdramc.h
@@ -0,0 +1,87 @@
+/*
+ * [origin: Linux kernel arch/arm/mach-at91/include/mach/at91_wdt.h]
+ *
+ * Copyright (C) 2009 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+ * Copyright (C) 2007 Andrew Victor
+ * Copyright (C) 2007 Atmel Corporation.
+ *
+ * SDRAM Controllers (SDRAMC) - System peripherals registers.
+ * Based on AT91SAM9261 datasheet revision D.
+ *
+ * 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 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef AT91SAM9_SDRAMC_H
+#define AT91SAM9_SDRAMC_H
+
+/* SDRAM Controller (SDRAMC) registers */
+#define AT91_SDRAMC_MR		(AT91_SDRAMC + 0x00)	/* SDRAM Controller Mode Register */
+#define		AT91_SDRAMC_MODE	(0xf << 0)		/* Command Mode */
+#define			AT91_SDRAMC_MODE_NORMAL		0
+#define			AT91_SDRAMC_MODE_NOP		1
+#define			AT91_SDRAMC_MODE_PRECHARGE	2
+#define			AT91_SDRAMC_MODE_LMR		3
+#define			AT91_SDRAMC_MODE_REFRESH	4
+#define			AT91_SDRAMC_MODE_EXT_LMR	5
+#define			AT91_SDRAMC_MODE_DEEP		6
+
+#define AT91_SDRAMC_TR		(AT91_SDRAMC + 0x04)	/* SDRAM Controller Refresh Timer Register */
+#define		AT91_SDRAMC_COUNT	(0xfff << 0)		/* Refresh Timer Counter */
+
+#define AT91_SDRAMC_CR		(AT91_SDRAMC + 0x08)	/* SDRAM Controller Configuration Register */
+#define		AT91_SDRAMC_NC		(3 << 0)		/* Number of Column Bits */
+#define			AT91_SDRAMC_NC_8	(0 << 0)
+#define			AT91_SDRAMC_NC_9	(1 << 0)
+#define			AT91_SDRAMC_NC_10	(2 << 0)
+#define			AT91_SDRAMC_NC_11	(3 << 0)
+#define		AT91_SDRAMC_NR		(3 << 2)		/* Number of Row Bits */
+#define			AT91_SDRAMC_NR_11	(0 << 2)
+#define			AT91_SDRAMC_NR_12	(1 << 2)
+#define			AT91_SDRAMC_NR_13	(2 << 2)
+#define		AT91_SDRAMC_NB		(1 << 4)		/* Number of Banks */
+#define			AT91_SDRAMC_NB_2	(0 << 4)
+#define			AT91_SDRAMC_NB_4	(1 << 4)
+#define		AT91_SDRAMC_CAS		(3 << 5)		/* CAS Latency */
+#define			AT91_SDRAMC_CAS_1	(1 << 5)
+#define			AT91_SDRAMC_CAS_2	(2 << 5)
+#define			AT91_SDRAMC_CAS_3	(3 << 5)
+#define		AT91_SDRAMC_DBW		(1 << 7)		/* Data Bus Width */
+#define			AT91_SDRAMC_DBW_32	(0 << 7)
+#define			AT91_SDRAMC_DBW_16	(1 << 7)
+#define		AT91_SDRAMC_TWR		(0xf <<  8)		/* Write Recovery Delay */
+#define		AT91_SDRAMC_TRC		(0xf << 12)		/* Row Cycle Delay */
+#define		AT91_SDRAMC_TRP		(0xf << 16)		/* Row Precharge Delay */
+#define		AT91_SDRAMC_TRCD	(0xf << 20)		/* Row to Column Delay */
+#define		AT91_SDRAMC_TRAS	(0xf << 24)		/* Active to Precharge Delay */
+#define		AT91_SDRAMC_TXSR	(0xf << 28)		/* Exit Self Refresh to Active Delay */
+
+#define AT91_SDRAMC_LPR		(AT91_SDRAMC + 0x10)	/* SDRAM Controller Low Power Register */
+#define		AT91_SDRAMC_LPCB		(3 << 0)	/* Low-power Configurations */
+#define			AT91_SDRAMC_LPCB_DISABLE		0
+#define			AT91_SDRAMC_LPCB_SELF_REFRESH		1
+#define			AT91_SDRAMC_LPCB_POWER_DOWN		2
+#define			AT91_SDRAMC_LPCB_DEEP_POWER_DOWN	3
+#define		AT91_SDRAMC_PASR		(7 << 4)	/* Partial Array Self Refresh */
+#define		AT91_SDRAMC_TCSR		(3 << 8)	/* Temperature Compensated Self Refresh */
+#define		AT91_SDRAMC_DS			(3 << 10)	/* Drive Strength */
+#define		AT91_SDRAMC_TIMEOUT		(3 << 12)	/* Time to define when Low Power Mode is enabled */
+#define			AT91_SDRAMC_TIMEOUT_0_CLK_CYCLES	(0 << 12)
+#define			AT91_SDRAMC_TIMEOUT_64_CLK_CYCLES	(1 << 12)
+#define			AT91_SDRAMC_TIMEOUT_128_CLK_CYCLES	(2 << 12)
+
+#define AT91_SDRAMC_IER		(AT91_SDRAMC + 0x14)	/* SDRAM Controller Interrupt Enable Register */
+#define AT91_SDRAMC_IDR		(AT91_SDRAMC + 0x18)	/* SDRAM Controller Interrupt Disable Register */
+#define AT91_SDRAMC_IMR		(AT91_SDRAMC + 0x1C)	/* SDRAM Controller Interrupt Mask Register */
+#define AT91_SDRAMC_ISR		(AT91_SDRAMC + 0x20)	/* SDRAM Controller Interrupt Status Register */
+#define		AT91_SDRAMC_RES		(1 << 0)		/* Refresh Error Status */
+
+#define AT91_SDRAMC_MDR		(AT91_SDRAMC + 0x24)	/* SDRAM Memory Device Register */
+#define		AT91_SDRAMC_MD		(3 << 0)		/* Memory Device Type */
+#define			AT91_SDRAMC_MD_SDRAM		0
+#define			AT91_SDRAMC_MD_LOW_POWER_SDRAM	1
+
+
+#endif
diff --git a/include/asm-arm/arch-at91/hardware.h b/include/asm-arm/arch-at91/hardware.h
index 6b46a36..8704106 100644
--- a/include/asm-arm/arch-at91/hardware.h
+++ b/include/asm-arm/arch-at91/hardware.h
@@ -48,6 +48,23 @@
 #error "Unsupported AT91 processor"
 #endif
 
+/* External Memory Map */
+#define AT91_CHIPSELECT_0	0x10000000
+#define AT91_CHIPSELECT_1	0x20000000
+#define AT91_CHIPSELECT_2	0x30000000
+#define AT91_CHIPSELECT_3	0x40000000
+#define AT91_CHIPSELECT_4	0x50000000
+#define AT91_CHIPSELECT_5	0x60000000
+#define AT91_CHIPSELECT_6	0x70000000
+#define AT91_CHIPSELECT_7	0x80000000
+
+/* SDRAM */
+#ifdef CONFIG_DRAM_BASE
+#define AT91_SDRAM_BASE		CONFIG_DRAM_BASE
+#else
+#define AT91_SDRAM_BASE		AT91_CHIPSELECT_1
+#endif
+
 /* Clocks */
 #define AT91_SLOW_CLOCK		32768		/* slow clock */