Blackfin: br4: new board port

This adds support for the BR4 Appliance.  It is a quad channel ISDN BRI
board based on Blackfin BF537 CPU.

Signed-off-by: Dimitar Penev <dpn@switchfin.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

1 files changed, 157 insertions, 0 deletions

diff --git a/include/configs/br4.h b/include/configs/br4.h
new file mode 100644
index 0000000..ef3752d
--- /dev/null
+++ b/include/configs/br4.h
@@ -0,0 +1,157 @@
+/*
+ * U-boot - Configuration file for BR4 Appliance
+ *
+ * based on bf537-stamp.h
+ * Copyright (c) Switchfin Org. <dpn@switchfin.org>
+ */
+
+#ifndef __CONFIG_BR4_H__
+#define __CONFIG_BR4_H__
+
+#include <asm/config-pre.h>
+
+
+/*
+ * Processor Settings
+ */
+#define CONFIG_BFIN_CPU             bf537-0.3
+#define CONFIG_BFIN_BOOT_MODE       BFIN_BOOT_SPI_MASTER
+
+
+/*
+ * Clock Settings
+ *	CCLK = (CLKIN * VCO_MULT) / CCLK_DIV
+ *	SCLK = (CLKIN * VCO_MULT) / SCLK_DIV
+ */
+/* CONFIG_CLKIN_HZ is any value in Hz					*/
+#define CONFIG_CLKIN_HZ			25000000
+/* CLKIN_HALF controls the DF bit in PLL_CTL      0 = CLKIN		*/
+/*                                                1 = CLKIN / 2		*/
+#define CONFIG_CLKIN_HALF		0
+/* PLL_BYPASS controls the BYPASS bit in PLL_CTL  0 = do not bypass	*/
+/*                                                1 = bypass PLL	*/
+#define CONFIG_PLL_BYPASS		0
+/* VCO_MULT controls the MSEL (multiplier) bits in PLL_CTL		*/
+/* Values can range from 0-63 (where 0 means 64)			*/
+#define CONFIG_VCO_MULT			24
+/* CCLK_DIV controls the core clock divider				*/
+/* Values can be 1, 2, 4, or 8 ONLY					*/
+#define CONFIG_CCLK_DIV			1
+/* SCLK_DIV controls the system clock divider				*/
+/* Values can range from 1-15						*/
+#define CONFIG_SCLK_DIV			5
+
+
+/*
+ * Memory Settings
+ */
+#define CONFIG_MEM_ADD_WDTH	10
+#define CONFIG_MEM_SIZE		64
+
+#define CONFIG_EBIU_SDRRC_VAL	0x306
+#define CONFIG_EBIU_SDGCTL_VAL	0x8091998d
+
+#define CONFIG_EBIU_AMGCTL_VAL	0xFF
+#define CONFIG_EBIU_AMBCTL0_VAL	0x7BB07BB0
+#define CONFIG_EBIU_AMBCTL1_VAL	0xFFC27BB0
+
+#define CONFIG_SYS_MONITOR_LEN		(512 * 1024)
+#define CONFIG_SYS_MALLOC_LEN		(384 * 1024)
+
+
+/*
+ * Network Settings
+ */
+#ifndef __ADSPBF534__
+#define ADI_CMDS_NETWORK	1
+#define CONFIG_BFIN_MAC
+#define CONFIG_NETCONSOLE
+#endif
+#define CONFIG_HOSTNAME		br4
+#define CONFIG_TFTP_BLOCKSIZE	4404
+/* Uncomment next line to use fixed MAC address */
+/* #define CONFIG_ETHADDR	5c:38:1a:80:a7:00 */
+
+
+/*
+ * Flash Settings
+ */
+#define CONFIG_SYS_NO_FLASH	/* We have no parallel FLASH */
+
+
+/*
+ * SPI Settings
+ */
+#define CONFIG_BFIN_SPI
+#define CONFIG_ENV_SPI_MAX_HZ	30000000
+#define CONFIG_SF_DEFAULT_SPEED	30000000
+#define CONFIG_SPI_FLASH
+#define CONFIG_SPI_FLASH_STMICRO
+
+
+/*
+ * Env Storage Settings
+ */
+#define CONFIG_ENV_IS_IN_SPI_FLASH
+#define CONFIG_ENV_OFFSET	0x10000
+#define CONFIG_ENV_SIZE		0x2000
+#define CONFIG_ENV_SECT_SIZE	0x10000
+#define CONFIG_ENV_IS_EMBEDDED_IN_LDR
+
+
+/*
+ * I2C Settings
+ */
+#define CONFIG_BFIN_TWI_I2C
+#define CONFIG_HARD_I2C
+
+
+/*
+ * NAND Settings
+ */
+#define CONFIG_NAND_PLAT
+#define CONFIG_SYS_NAND_BASE		0x20000000
+#define CONFIG_SYS_MAX_NAND_DEVICE	1
+
+#define BFIN_NAND_CLE(chip) ((unsigned long)(chip)->IO_ADDR_W | (1 << 2))
+#define BFIN_NAND_ALE(chip) ((unsigned long)(chip)->IO_ADDR_W | (1 << 1))
+#define BFIN_NAND_WRITE(addr, cmd) \
+	do { \
+		bfin_write8(addr, cmd); \
+		SSYNC(); \
+	} while (0)
+
+#define NAND_PLAT_WRITE_CMD(chip, cmd) BFIN_NAND_WRITE(BFIN_NAND_CLE(chip), cmd)
+#define NAND_PLAT_WRITE_ADR(chip, cmd) BFIN_NAND_WRITE(BFIN_NAND_ALE(chip), cmd)
+#define NAND_PLAT_GPIO_DEV_READY       GPIO_PF9
+
+/*
+ * Misc Settings
+ */
+#define CONFIG_BAUDRATE		115200
+#define CONFIG_RTC_BFIN
+#define CONFIG_UART_CONSOLE	0
+#define CONFIG_SYS_PROMPT	"br4>"
+#define CONFIG_BOOTCOMMAND	"run nandboot"
+#define CONFIG_BOOTDELAY	2
+#define CONFIG_LOADADDR		0x2000000
+
+
+/*
+ * Pull in common ADI header for remaining command/environment setup
+ */
+#include <configs/bfin_adi_common.h>
+
+/*
+ * Overwrite some settings defined in bfin_adi_common.h
+ */
+#undef NAND_ENV_SETTINGS
+#define NAND_ENV_SETTINGS \
+	"nandargs=set bootargs " CONFIG_BOOTARGS "\0" \
+	"nandboot=" \
+		"nand read $(loadaddr) 0x0 0x900000;" \
+		"run nandargs;" \
+		"bootm" \
+		"\0"
+
+#endif