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From 4727db0f161869a41045e7a52f938a6f88400b73 Mon Sep 17 00:00:00 2001
From: Koen Kooi <koen@dominion.thruhere.net>
Date: Wed, 19 Jan 2011 14:55:22 +0100
Subject: [PATCH 3/3] craneboard: add expansionboard support
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
---
board/ti/am3517crane/am3517crane.c | 99 ++++++++++++++++++++++++++++++++++++
board/ti/am3517crane/am3517crane.h | 42 +++++++++++++++
include/configs/am3517_crane.h | 6 ++-
3 files changed, 146 insertions(+), 1 deletions(-)
diff --git a/board/ti/am3517crane/am3517crane.c b/board/ti/am3517crane/am3517crane.c
index 2f525b6..0822503 100644
--- a/board/ti/am3517crane/am3517crane.c
+++ b/board/ti/am3517crane/am3517crane.c
@@ -45,6 +45,27 @@
DECLARE_GLOBAL_DATA_PTR;
+#define TWL4030_I2C_BUS 0
+#define EXPANSION_EEPROM_I2C_BUS 1
+#define EXPANSION_EEPROM_I2C_ADDRESS 0x50
+
+#define TINCANTOOLS_ZIPPY 0x01000100
+#define TINCANTOOLS_ZIPPY2 0x02000100
+#define TINCANTOOLS_TRAINER 0x04000100
+#define TINCANTOOLS_SHOWDOG 0x03000100
+#define KBADC_BEAGLEFPGA 0x01000600
+
+#define BEAGLE_NO_EEPROM 0xffffffff
+
+static struct {
+ unsigned int device_vendor;
+ unsigned char revision;
+ unsigned char content;
+ char fab_revision[8];
+ char env_var[16];
+ char env_setting[64];
+} expansion_config;
+
/*
* Routine: board_init
* Description: Early hardware init.
@@ -61,6 +82,32 @@ int board_init(void)
}
/*
+ * Routine: get_expansion_id
+ * Description: This function checks for expansion board by checking I2C
+ * bus 1 for the availability of an AT24C01B serial EEPROM.
+ * returns the device_vendor field from the EEPROM
+ */
+unsigned int get_expansion_id(void)
+{
+ i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS);
+
+ /* return BEAGLE_NO_EEPROM if eeprom doesn't respond */
+ if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) {
+ i2c_set_bus_num(TWL4030_I2C_BUS);
+ return BEAGLE_NO_EEPROM;
+ }
+
+ /* read configuration data */
+ i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config,
+ sizeof(expansion_config));
+
+ i2c_set_bus_num(TWL4030_I2C_BUS);
+
+ return expansion_config.device_vendor;
+}
+
+
+/*
* Routine: misc_init_r
* Description: Init ethernet (done here so udelay works)
*/
@@ -95,9 +142,61 @@ int misc_init_r(void)
reset &= (~CPGMACSS_SW_RST);
writel(reset, AM3517_IP_SW_RESET);
#endif
+
+ switch (get_expansion_id()) {
+ case TINCANTOOLS_ZIPPY:
+ printf("Recognized Tincantools Zippy board (rev %d %s)\n",
+ expansion_config.revision,
+ expansion_config.fab_revision);
+ MUX_TINCANTOOLS_ZIPPY();
+ setenv("buddy", "zippy");
+ break;
+ case TINCANTOOLS_ZIPPY2:
+ printf("Recognized Tincantools Zippy2 board (rev %d %s)\n",
+ expansion_config.revision,
+ expansion_config.fab_revision);
+ MUX_TINCANTOOLS_ZIPPY();
+ setenv("buddy", "zippy2");
+ break;
+ case TINCANTOOLS_TRAINER:
+ printf("Recognized Tincantools Trainer board (rev %d %s)\n",
+ expansion_config.revision,
+ expansion_config.fab_revision);
+ MUX_TINCANTOOLS_ZIPPY();
+ MUX_TINCANTOOLS_TRAINER();
+ setenv("buddy", "trainer");
+ break;
+ case TINCANTOOLS_SHOWDOG:
+ printf("Recognized Tincantools Showdow board (rev %d %s)\n",
+ expansion_config.revision,
+ expansion_config.fab_revision);
+ /* Place holder for DSS2 definition for showdog lcd */
+ setenv("defaultdisplay", "showdoglcd");
+ setenv("buddy", "showdog");
+ break;
+ case KBADC_BEAGLEFPGA:
+ printf("Recognized KBADC Beagle FPGA board\n");
+ MUX_KBADC_BEAGLEFPGA();
+ setenv("buddy", "beaglefpga");
+ break;
+ case BEAGLE_NO_EEPROM:
+ printf("No EEPROM on expansion board\n");
+ setenv("buddy", "none");
+ break;
+ default:
+ printf("Unrecognized expansion board: %x\n",
+ expansion_config.device_vendor);
+ setenv("buddy", "unknown");
+ }
+
+ if (expansion_config.content == 1)
+ setenv(expansion_config.env_var, expansion_config.env_setting);
+
return 0;
}
+
+
/*
* Initializes on-chip ethernet controllers.
* to override, implement board_eth_init()
diff --git a/board/ti/am3517crane/am3517crane.h b/board/ti/am3517crane/am3517crane.h
index dbe2c34..83fe858 100644
--- a/board/ti/am3517crane/am3517crane.h
+++ b/board/ti/am3517crane/am3517crane.h
@@ -336,4 +336,46 @@ const omap3_sysinfo sysinfo = {
MUX_VAL(CP(JTAG_EMU0), (IEN | PTD | DIS | M0)) \
MUX_VAL(CP(JTAG_EMU1), (IEN | PTD | DIS | M0)) \
+#define MUX_TINCANTOOLS_ZIPPY() \
+ MUX_VAL(CP(MMC2_CLK), (IEN | PTU | EN | M0)) /*MMC2_CLK*/\
+ MUX_VAL(CP(MMC2_CMD), (IEN | PTU | EN | M0)) /*MMC2_CMD*/\
+ MUX_VAL(CP(MMC2_DAT0), (IEN | PTU | EN | M0)) /*MMC2_DAT0*/\
+ MUX_VAL(CP(MMC2_DAT1), (IEN | PTU | EN | M0)) /*MMC2_DAT1*/\
+ MUX_VAL(CP(MMC2_DAT2), (IEN | PTU | EN | M0)) /*MMC2_DAT2*/\
+ MUX_VAL(CP(MMC2_DAT3), (IEN | PTU | EN | M0)) /*MMC2_DAT3*/\
+ MUX_VAL(CP(MMC2_DAT4), (IEN | PTU | EN | M1)) /*MMC2_DIR_DAT0*/\
+ MUX_VAL(CP(MMC2_DAT5), (IEN | PTU | EN | M1)) /*MMC2_DIR_DAT1*/\
+ MUX_VAL(CP(MMC2_DAT6), (IEN | PTU | EN | M1)) /*MMC2_DIR_CMD*/\
+ MUX_VAL(CP(MMC2_DAT7), (IEN | PTU | EN | M1)) /*MMC2_CLKIN*/\
+ MUX_VAL(CP(MCBSP1_CLKR), (IEN | PTU | EN | M1)) /*MCSPI4_CLK*/\
+ MUX_VAL(CP(MCBSP1_FSR), (IEN | PTU | EN | M4)) /*GPIO_157*/\
+ MUX_VAL(CP(MCBSP1_DX), (IEN | PTD | EN | M1)) /*MCSPI4_SIMO*/\
+ MUX_VAL(CP(MCBSP1_DR), (IEN | PTD | DIS | M1)) /*MCSPI4_SOMI*/\
+ MUX_VAL(CP(MCBSP1_FSX), (IEN | PTD | EN | M1)) /*MCSPI4_CS0*/\
+ MUX_VAL(CP(MCBSP1_CLKX), (IEN | PTD | DIS | M4)) /*GPIO_162*/\
+ MUX_VAL(CP(MCBSP3_DX), (IEN | PTD | DIS | M4)) /*GPIO_140*/\
+ MUX_VAL(CP(MCBSP3_DR), (IEN | PTD | DIS | M4)) /*GPIO_142*/\
+ MUX_VAL(CP(MCBSP3_CLKX), (IEN | PTD | DIS | M4)) /*GPIO_141*/
+
+#define MUX_TINCANTOOLS_TRAINER() \
+ MUX_VAL(CP(MMC2_CLK), (IEN | PTU | EN | M4)) /*GPIO_130*/\
+ MUX_VAL(CP(MMC2_CMD), (IEN | PTU | EN | M4)) /*GPIO_131*/\
+ MUX_VAL(CP(MMC2_DAT0), (IEN | PTU | EN | M4)) /*GPIO_132*/\
+ MUX_VAL(CP(MMC2_DAT1), (IEN | PTU | EN | M4)) /*GPIO_133*/\
+ MUX_VAL(CP(MMC2_DAT2), (IEN | PTU | EN | M4)) /*GPIO_134*/\
+ MUX_VAL(CP(MMC2_DAT3), (IEN | PTU | EN | M4)) /*GPIO_135*/\
+ MUX_VAL(CP(MMC2_DAT4), (IEN | PTU | EN | M4)) /*GPIO_136*/\
+ MUX_VAL(CP(MMC2_DAT5), (IEN | PTU | EN | M4)) /*GPIO_137*/\
+ MUX_VAL(CP(MMC2_DAT6), (IEN | PTU | EN | M4)) /*GPIO_138*/\
+ MUX_VAL(CP(MMC2_DAT7), (IEN | PTU | EN | M4)) /*GPIO_139*/\
+ MUX_VAL(CP(MCBSP3_DX), (IEN | PTU | EN | M4)) /*GPIO_140*/\
+ MUX_VAL(CP(MCBSP3_CLKX), (IEN | PTU | EN | M4)) /*GPIO_141*/\
+ MUX_VAL(CP(MCBSP1_CLKX), (IEN | PTU | EN | M4)) /*GPIO_162*/
+
+#define MUX_KBADC_BEAGLEFPGA() \
+ MUX_VAL(CP(MCBSP1_CLKR), (IEN | PTU | DIS | M1)) /*MCSPI4_CLK*/\
+ MUX_VAL(CP(MCBSP1_DX), (IDIS | PTU | DIS | M1)) /*MCSPI4_SIMO*/\
+ MUX_VAL(CP(MCBSP1_DR), (IEN | PTU | EN | M1)) /*MCSPI4_SOMI*/\
+ MUX_VAL(CP(MCBSP1_FSX), (IDIS | PTU | DIS | M1)) /*MCSPI4_CS0*/
+
#endif /* _AM3517CRANE_H_ */
diff --git a/include/configs/am3517_crane.h b/include/configs/am3517_crane.h
index 9637e9d..f059dc7 100644
--- a/include/configs/am3517_crane.h
+++ b/include/configs/am3517_crane.h
@@ -162,6 +162,7 @@
#define CONFIG_SYS_I2C_SLAVE 1
#define CONFIG_SYS_I2C_BUS 0
#define CONFIG_SYS_I2C_BUS_SELECT 1
+#define CONFIG_I2C_MULTI_BUS 1
#define CONFIG_DRIVER_OMAP34XX_I2C 1
#define CONFIG_CMD_NET
@@ -186,17 +187,20 @@
#define CONFIG_JFFS2_PART_SIZE 0xf980000 /* sz of jffs2 part */
/* Environment information */
-#define CONFIG_BOOTDELAY 10
+#define CONFIG_BOOTDELAY 1
#define CONFIG_BOOTFILE uImage
#define CONFIG_EXTRA_ENV_SETTINGS \
"loadaddr=0x82000000\0" \
"console=ttyS2,115200n8\0" \
+ "buddy=none\0" \
"mmcargs=setenv bootargs console=${console} " \
+ "buddy=${buddy} "\
"root=/dev/mmcblk0p2 rw " \
"rootfstype=ext3 rootwait eth=${ethaddr} ip=dhcp\0" \
"nandargs=setenv bootargs console=${console} " \
+ "buddy=${buddy} "\
"root=/dev/mtdblock4 rw " \
"rootfstype=jffs2 eth=${ethaddr} ip=dhcp\0" \
"loadbootscript=fatload mmc 0 ${loadaddr} boot.scr\0" \
--
1.6.6.1
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