board/BuR/tseries: reactivate NAND-board

The NAND-version has been become a bit orphan.
Now we need to reactivate it, so bring necessary things:

- loading devicetree
- switch control signal to correct pins
- setup pinmux
- default-environment

up to date.

Signed-off-by: Hannes Petermaier <oe5hpm@oevsv.at>

board/BuR/common/common.c

@@ -33,6 +33,7 @@
 #endif
 #include "bur_common.h"
 #include "../../../drivers/video/am335x-fb.h"
+#include <nand.h>
 
 static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
 
@@ -159,17 +160,22 @@ int load_lcdtiming(struct am335x_lcdpanel *panel)
 #ifdef CONFIG_USE_FDT
 static int load_devicetree(void)
 {
-	char *dtbname = getenv("dtb");
-	char *dtbdev = getenv("dtbdev");
-	char *dtppart = getenv("dtbpart");
-	u32 dtbaddr = getenv_ulong("dtbaddr", 16, 0UL);
 	int rc;
 	loff_t dtbsize;
+	u32 dtbaddr = getenv_ulong("dtbaddr", 16, 0UL);
 
 	if (dtbaddr == 0) {
 		printf("%s: don't have a valid <dtbaddr> in env!\n", __func__);
 		return -1;
 	}
+#ifdef CONFIG_NAND
+	dtbsize = 0x20000;
+	rc = nand_read_skip_bad(&nand_info[0], 0x40000, (size_t *)&dtbsize,
+				NULL, 0x20000, (u_char *)dtbaddr);
+#else
+	char *dtbname = getenv("dtb");
+	char *dtbdev = getenv("dtbdev");
+	char *dtppart = getenv("dtbpart");
 	if (!dtbdev || !dtbdev || !dtbname) {
 		printf("%s: <dtbdev>/<dtbpart>/<dtb> missing.\n", __func__);
 		return -1;
@@ -180,6 +186,7 @@ static int load_devicetree(void)
 		return -1;
 	}
 	rc = fs_read(dtbname, (u32)dtbaddr, 0, 0, &dtbsize);
+#endif
 	if (rc == 0) {
 		gd->fdt_blob = (void *)dtbaddr;
 		gd->fdt_size = dtbsize;

board/BuR/tseries/board.c

@@ -128,6 +128,9 @@ void am33xx_spl_board_init(void)
 	i2c_set_bus_num(0);
 	i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
 	pmicsetup(0);
+
+	gpio_direction_output(64+29, 1); /* switch NAND_RnB to GPMC_WAIT1 */
+	gpio_direction_output(64+28, 1); /* switch MII2_CRS to GPMC_WAIT0 */
 }
 
 const struct dpll_params *get_dpll_ddr_params(void)

board/BuR/tseries/mux.c

@@ -123,7 +123,7 @@ static struct module_pin_mux nand_pin_mux[] = {
 	{OFFSET(gpmc_ad5), (MODE(0) | PULLUP_EN | RXACTIVE)},	/* NAND AD5 */
 	{OFFSET(gpmc_ad6), (MODE(0) | PULLUP_EN | RXACTIVE)},	/* NAND AD6 */
 	{OFFSET(gpmc_ad7), (MODE(0) | PULLUP_EN | RXACTIVE)},	/* NAND AD7 */
-	{OFFSET(gpmc_wait0), (MODE(0) | RXACTIVE | PULLUP_EN)},	/* NAND WAIT */
+	{OFFSET(gpmc_clk), (MODE(2) | RXACTIVE | PULLUP_EN)},	/* NAND WAIT */
 	{OFFSET(gpmc_wpn), (MODE(7) | PULLUP_EN | RXACTIVE)},	/* NAND_WPN */
 	{OFFSET(gpmc_csn0), (MODE(0) | PULLUDEN)},	/* NAND_CS0 */
 	{OFFSET(gpmc_advn_ale), (MODE(0) | PULLUDEN)},	/* NAND_ADV_ALE */

include/configs/tseries.h

@@ -23,6 +23,8 @@
 #define CONFIG_HW_WATCHDOG
 #define CONFIG_OMAP_WATCHDOG
 #define CONFIG_SPL_WATCHDOG_SUPPORT
+
+#define CONFIG_SPL_GPIO_SUPPORT
 /* Bootcount using the RTC block */
 #define CONFIG_SYS_BOOTCOUNT_ADDR	0x44E3E000
 #define CONFIG_BOOTCOUNT_LIMIT
@@ -103,15 +105,16 @@
 	"mtdparts=" MTDPARTS_DEFAULT "\0" \
 	"nandargs=setenv bootargs console=${console} " \
 		"${optargs} " \
-		"root=${nandroot} " \
-		"rootfstype=${nandrootfstype}\0" \
-	"nandroot=ubi0:rootfs rw ubi.mtd=8,2048\0" \
-	"nandrootfstype=ubifs rootwait=1\0" \
-	"nandimgsize=0x500000\0" \
-	"nandboot=echo Booting from nand ...; " \
+		"root=mtd6 " \
+		"rootfstype=jffs2\0" \
+	"kernelsize=0x400000\0" \
+	"nandboot=echo booting from nand ...; " \
 		"run nandargs; " \
-		"nand read ${loadaddr} kernel ${nandimgsize}; " \
-		"bootz ${loadaddr}\0"
+		"nand read ${loadaddr} kernel ${kernelsize}; " \
+		"bootz ${loadaddr} - ${dtbaddr}\0" \
+	"defboot=run nandboot\0" \
+	"bootlimit=1\0" \
+	"altbootcmd=run usbscript\0"
 #else
 #define NANDARGS ""
 #endif /* CONFIG_NAND */
@@ -231,15 +234,15 @@ MMCARGS
 
 #define MTDIDS_DEFAULT			"nand0=omap2-nand.0"
 #define MTDPARTS_DEFAULT		"mtdparts=omap2-nand.0:" \
-					"128k(SPL)," \
-					"128k(SPL.backup1)," \
-					"128k(SPL.backup2)," \
-					"128k(SPL.backup3)," \
-					"512k(u-boot)," \
-					"128k(u-boot-spl-os)," \
+					"128k(MLO)," \
+					"128k(MLO.backup)," \
+					"128k(dtb)," \
 					"128k(u-boot-env)," \
-					"5m(kernel),"\
-					"-(rootfs)"
+					"512k(u-boot)," \
+					"4m(kernel),"\
+					"128m(rootfs),"\
+					"-(user)"
+#define CONFIG_NAND_OMAP_GPMC_WSCFG	1
 #endif /* CONFIG_NAND */
 
 /* USB configuration */
@@ -298,7 +301,7 @@ MMCARGS
 #else
 #define CONFIG_ENV_IS_IN_NAND
 #endif
-#define CONFIG_ENV_OFFSET		0x120000 /* TODO: Adresse definieren */
+#define CONFIG_ENV_OFFSET		0x60000
 #define CONFIG_SYS_ENV_SECT_SIZE	CONFIG_ENV_SIZE
 #else
 #error "no storage for Environment defined!"