mpc52xx: add common o2dnt and o2dnt2 support and configurations

Add common code for o2dnt and o2dnt2 based boards and add different
board configuration files for O2D, O2I, O2DNT2, O2D300, O2MNT and
O3DNT boards.

Signed-off-by: Anatolij Gustschin <agust@denx.de>

1 files changed, 400 insertions, 0 deletions

diff --git a/board/ifm/o2dnt2/o2dnt2.c b/board/ifm/o2dnt2/o2dnt2.c
new file mode 100644
index 0000000..40a5305
--- /dev/null
+++ b/board/ifm/o2dnt2/o2dnt2.c
@@ -0,0 +1,400 @@
+/*
+ * Partially derived from board code for digsyMTC,
+ * (C) Copyright 2009
+ * Grzegorz Bernacki, Semihalf, gjb@semihalf.com
+ *
+ * (C) Copyright 2012
+ * DENX Software Engineering, Anatolij Gustschin <agust@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <mpc5xxx.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#include <i2c.h>
+#include <miiphy.h>
+#include <net.h>
+#include <pci.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define SDRAM_MODE	0x00CD0000
+#define SDRAM_CONTROL	0x504F0000
+#define SDRAM_CONFIG1	0xD2322800
+#define SDRAM_CONFIG2	0x8AD70000
+
+enum ifm_sensor_type {
+	O2DNT		= 0x00,	/* !< O2DNT 32MB */
+	O2DNT2		= 0x01,	/* !< O2DNT2 64MB */
+	O3DNT		= 0x02,	/* !< O3DNT 32MB */
+	O3DNT_MIN	= 0x40,	/* !< O3DNT Minerva 32MB */
+	UNKNOWN		= 0xff,	/* !< Unknow sensor */
+};
+
+static enum ifm_sensor_type gt_ifm_sensor_type;
+
+#ifndef CONFIG_SYS_RAMBOOT
+static void sdram_start(int hi_addr)
+{
+	struct mpc5xxx_sdram *sdram = (struct mpc5xxx_sdram *)MPC5XXX_SDRAM;
+	long hi_addr_bit = hi_addr ? 0x01000000 : 0;
+	long control = SDRAM_CONTROL | hi_addr_bit;
+
+	/* unlock mode register */
+	out_be32(&sdram->ctrl, control | 0x80000000);
+
+	/* precharge all banks */
+	out_be32(&sdram->ctrl, control | 0x80000002);
+
+	/* auto refresh */
+	out_be32(&sdram->ctrl, control | 0x80000004);
+
+	/* set mode register */
+	out_be32(&sdram->mode, SDRAM_MODE);
+
+	/* normal operation */
+	out_be32(&sdram->ctrl, control);
+}
+#endif
+
+/*
+ * ATTENTION: Although partially referenced initdram does NOT make real use
+ *            use of CONFIG_SYS_SDRAM_BASE. The code does not work if
+ *            CONFIG_SYS_SDRAM_BASE is something else than 0x00000000.
+ */
+phys_size_t initdram(int board_type)
+{
+	struct mpc5xxx_mmap_ctl *mmap_ctl =
+		(struct mpc5xxx_mmap_ctl *)CONFIG_SYS_MBAR;
+	struct mpc5xxx_sdram *sdram = (struct mpc5xxx_sdram *)MPC5XXX_SDRAM;
+	ulong dramsize = 0;
+	ulong dramsize2 = 0;
+	uint svr, pvr;
+
+	if (gt_ifm_sensor_type == O2DNT2) {
+		/* activate SDRAM CS1 */
+		setbits_be32((void *)MPC5XXX_GPS_PORT_CONFIG, 0x80000000);
+	}
+
+#ifndef CONFIG_SYS_RAMBOOT
+	ulong test1, test2;
+
+	/* setup SDRAM chip selects */
+	out_be32(&mmap_ctl->sdram0, 0x0000001E); /* 2 GB at 0x0 */
+	out_be32(&mmap_ctl->sdram1, 0x00000000); /* disabled */
+
+	/* setup config registers */
+	out_be32(&sdram->config1, SDRAM_CONFIG1);
+	out_be32(&sdram->config2, SDRAM_CONFIG2);
+
+	/* find RAM size using SDRAM CS0 only */
+	sdram_start(0);
+	test1 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x08000000);
+	sdram_start(1);
+	test2 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x08000000);
+	if (test1 > test2) {
+		sdram_start(0);
+		dramsize = test1;
+	} else {
+		dramsize = test2;
+	}
+
+	/* memory smaller than 1MB is impossible */
+	if (dramsize < (1 << 20))
+		dramsize = 0;
+
+	/* set SDRAM CS0 size according to the amount of RAM found */
+	if (dramsize > 0) {
+		out_be32(&mmap_ctl->sdram0,
+			 (0x13 + __builtin_ffs(dramsize >> 20) - 1));
+	} else {
+		out_be32(&mmap_ctl->sdram0, 0); /* disabled */
+	}
+
+	/* let SDRAM CS1 start right after CS0 */
+	out_be32(&mmap_ctl->sdram1, dramsize + 0x0000001E); /* 2G */
+
+	/* find RAM size using SDRAM CS1 only */
+	if (!dramsize)
+		sdram_start(0);
+
+	test2 = test1 = get_ram_size((long *)(CONFIG_SYS_SDRAM_BASE + dramsize),
+					0x80000000);
+	if (!dramsize) {
+		sdram_start(1);
+		test2 = get_ram_size((long *)(CONFIG_SYS_SDRAM_BASE + dramsize),
+					0x80000000);
+	}
+
+	if (test1 > test2) {
+		sdram_start(0);
+		dramsize2 = test1;
+	} else {
+		dramsize2 = test2;
+	}
+
+	/* memory smaller than 1MB is impossible */
+	if (dramsize2 < (1 << 20))
+		dramsize2 = 0;
+
+	/* set SDRAM CS1 size according to the amount of RAM found */
+	if (dramsize2 > 0) {
+		out_be32(&mmap_ctl->sdram1, (dramsize |
+			 (0x13 + __builtin_ffs(dramsize2 >> 20) - 1)));
+	} else {
+		out_be32(&mmap_ctl->sdram1, dramsize); /* disabled */
+	}
+
+#else /* CONFIG_SYS_RAMBOOT */
+	/* retrieve size of memory connected to SDRAM CS0 */
+	dramsize = in_be32(&mmap_ctl->sdram0) & 0xFF;
+	if (dramsize >= 0x13)
+		dramsize = (1 << (dramsize - 0x13)) << 20;
+	else
+		dramsize = 0;
+
+	/* retrieve size of memory connected to SDRAM CS1 */
+	dramsize2 = in_be32(&mmap_ctl->sdram1) & 0xFF;
+	if (dramsize2 >= 0x13)
+		dramsize2 = (1 << (dramsize2 - 0x13)) << 20;
+	else
+		dramsize2 = 0;
+
+#endif /* CONFIG_SYS_RAMBOOT */
+
+	/*
+	 * On MPC5200B we need to set the special configuration delay in the
+	 * DDR controller. Please refer to Freescale's AN3221 "MPC5200B SDRAM
+	 * Initialization and Configuration", 3.3.1 SDelay--MBAR + 0x0190:
+	 *
+	 * "The SDelay should be written to a value of 0x00000004. It is
+	 * required to account for changes caused by normal wafer processing
+	 * parameters."
+	 */
+	svr = get_svr();
+	pvr = get_pvr();
+	if ((SVR_MJREV(svr) >= 2) &&
+	    (PVR_MAJ(pvr) == 1) && (PVR_MIN(pvr) == 4))
+		out_be32(&sdram->sdelay, 0x04);
+
+	return dramsize + dramsize2;
+}
+
+
+#define GPT_GPIO_IN	0x4
+
+int checkboard(void)
+{
+	struct mpc5xxx_gpt *gpt = (struct mpc5xxx_gpt *)MPC5XXX_GPT;
+	unsigned char board_config = 0;
+	int i;
+
+	/* switch gpt0 - gpt7 to input */
+	for (i = 0; i < 7; i++)
+		out_be32(&gpt[i].emsr, GPT_GPIO_IN);
+
+	/* get configuration byte on timer-port */
+	for (i = 0; i < 7; i++)
+		board_config |= (in_be32(&gpt[i].sr) & 0x100) >> (8 - i);
+
+	puts("Board: ");
+
+	switch (board_config) {
+	case 0:
+		puts("O2DNT\n");
+		gt_ifm_sensor_type = O2DNT;
+		break;
+	case 1:
+		puts("O3DNT\n");
+		gt_ifm_sensor_type = O3DNT;
+		break;
+	case 2:
+		puts("O2DNT2\n");
+		gt_ifm_sensor_type = O2DNT2;
+		break;
+	case 64:
+		puts("O3DNT Minerva\n");
+		gt_ifm_sensor_type = O3DNT_MIN;
+		break;
+	default:
+		puts("Unknown\n");
+		gt_ifm_sensor_type = UNKNOWN;
+		break;
+	}
+
+	return 0;
+}
+
+int board_early_init_r(void)
+{
+	struct mpc5xxx_lpb *lpb_regs = (struct mpc5xxx_lpb *)MPC5XXX_LPB;
+
+	/*
+	 * Now, when we are in RAM, enable flash write access for detection
+	 * process. Note that CS_BOOT cannot be cleared when executing in flash.
+	 */
+	clrbits_be32(&lpb_regs->cs0_cfg, 1); /* clear RO */
+	/* disable CS_BOOT */
+	clrbits_be32((void *)MPC5XXX_ADDECR, (1 << 25));
+	/* enable CS0 */
+	setbits_be32((void *)MPC5XXX_ADDECR, (1 << 16));
+
+	return 0;
+}
+
+#define MIIM_LXT971_LED_CFG_REG		0x14
+#define LXT971_LED_CFG_LINK_STATUS	0x4000
+#define LXT971_LED_CFG_RX_TX_ACTIVITY	0x0700
+#define LXT971_LED_CFG_LINK_ACTIVITY	0x00D0
+#define LXT971_LED_CFG_PULSE_STRETCH	0x0002
+/*
+ * Additional PHY intialization after reset in mpc5xxx_fec_init_phy()
+ */
+void reset_phy(void)
+{
+	/*
+	 * Set LED configuration bits.
+	 * It can't be done in misc_init_r() since FEC is not
+	 * initialized at this time. Therefore we do it here.
+	 */
+	miiphy_write("FEC", CONFIG_PHY_ADDR, MIIM_LXT971_LED_CFG_REG,
+			LXT971_LED_CFG_LINK_STATUS |
+			LXT971_LED_CFG_RX_TX_ACTIVITY |
+			LXT971_LED_CFG_LINK_ACTIVITY |
+			LXT971_LED_CFG_PULSE_STRETCH);
+}
+
+#if defined(CONFIG_POST)
+/*
+ * Reads GPIO pin PSC6_3. A keypress is reported, if PSC6_3 is low. If PSC6_3
+ * is left open, no keypress is detected.
+ */
+int post_hotkeys_pressed(void)
+{
+	struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *) MPC5XXX_GPIO;
+
+	/*
+	 * Configure PSC6_1 and PSC6_3 as GPIO. PSC6 then couldn't be used in
+	 * CODEC or UART mode. Consumer IrDA should still be possible.
+	 */
+	clrbits_be32(&gpio->port_config, 0x07000000);
+	setbits_be32(&gpio->port_config, 0x03000000);
+
+	/* Enable GPIO for GPIO_IRDA_1 (IR_USB_CLK pin) = PSC6_3 */
+	setbits_be32(&gpio->simple_gpioe, 0x20000000);
+
+	/* Configure GPIO_IRDA_1 as input */
+	clrbits_be32(&gpio->simple_ddr, 0x20000000);
+
+	return (in_be32(&gpio->simple_ival) & 0x20000000) ? 0 : 1;
+}
+#endif
+
+#ifdef CONFIG_PCI
+static struct pci_controller hose;
+
+void pci_init_board(void)
+{
+	pci_mpc5xxx_init(&hose);
+}
+#endif
+
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+#if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
+static void ft_adapt_flash_base(void *blob)
+{
+	flash_info_t	*dev = &flash_info[0];
+	int off;
+	struct fdt_property *prop;
+	int len;
+	u32 *reg, *reg2;
+
+	off = fdt_node_offset_by_compatible(blob, -1, "fsl,mpc5200b-lpb");
+	if (off < 0) {
+		printf("Could not find fsl,mpc5200b-lpb node.\n");
+		return;
+	}
+
+	/* found compatible property */
+	prop = fdt_get_property_w(blob, off, "ranges", &len);
+	if (prop) {
+		reg = reg2 = (u32 *)&prop->data[0];
+
+		reg[2] = dev->start[0];
+		reg[3] = dev->size;
+		fdt_setprop(blob, off, "ranges", reg2, len);
+	} else
+		printf("Could not find ranges\n");
+}
+
+extern ulong flash_get_size(phys_addr_t base, int banknum);
+
+/* Update the flash baseaddr settings */
+int update_flash_size(int flash_size)
+{
+	struct mpc5xxx_mmap_ctl *mm =
+		(struct mpc5xxx_mmap_ctl *) CONFIG_SYS_MBAR;
+	flash_info_t *dev;
+	int i;
+	int size = 0;
+	unsigned long base = 0x0;
+	u32 *cs_reg = (u32 *)&mm->cs0_start;
+
+	for (i = 0; i < 2; i++) {
+		dev = &flash_info[i];
+
+		if (dev->size) {
+			/* calculate new base addr for this chipselect */
+			base -= dev->size;
+			out_be32(cs_reg, START_REG(base));
+			cs_reg++;
+			out_be32(cs_reg, STOP_REG(base, dev->size));
+			cs_reg++;
+			/* recalculate the sectoraddr in the cfi driver */
+			size += flash_get_size(base, i);
+		}
+	}
+	flash_protect_default();
+	gd->bd->bi_flashstart = base;
+	return 0;
+}
+#endif /* defined(CONFIG_SYS_UPDATE_FLASH_SIZE) */
+
+void ft_board_setup(void *blob, bd_t *bd)
+{
+	int phy_addr = CONFIG_PHY_ADDR;
+	char eth_path[] = "/soc5200@f0000000/mdio@3000/ethernet-phy@0";
+
+	ft_cpu_setup(blob, bd);
+
+#if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
+#ifdef CONFIG_FDT_FIXUP_NOR_FLASH_SIZE
+	/* Update reg property in all nor flash nodes too */
+	fdt_fixup_nor_flash_size(blob);
+#endif
+	ft_adapt_flash_base(blob);
+#endif
+	/* fix up the phy address */
+	do_fixup_by_path(blob, eth_path, "reg", &phy_addr, sizeof(int), 0);
+}
+#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */