add uboot-lantiq (based on a patch contributed by Lantiq)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@20561 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 338 insertions, 0 deletions

diff --git a/package/uboot-lantiq/files/board/infineon/easy50712/danube.c b/package/uboot-lantiq/files/board/infineon/easy50712/danube.c
new file mode 100644
index 0000000000..4734366929
--- /dev/null
+++ b/package/uboot-lantiq/files/board/infineon/easy50712/danube.c
@@ -0,0 +1,338 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2010
+ * Thomas Langer, Ralph Hempel
+ *
+ * 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 <command.h>
+#include <netdev.h>
+#include <miiphy.h>
+#include <asm/addrspace.h>
+#include <asm/danube.h>
+#include <asm/reboot.h>
+#include <asm/io.h>
+
+extern ulong ifx_get_ddr_hz(void);
+extern ulong ifx_get_cpuclk(void);
+
+/* definitions for external PHYs / Switches */
+/* Split values into phy address and register address */
+#define PHYADDR(_reg)	((_reg >> 5) & 0xff), (_reg & 0x1f)
+
+/* IDs and registers of known external switches */
+#define ID_SAMURAI_0	0x1020
+#define ID_SAMURAI_1	0x0007
+#define SAMURAI_ID_REG0	0xA0
+#define SAMURAI_ID_REG1	0xA1
+
+#define ID_TANTOS	0x2599
+
+void _machine_restart(void)
+{
+	*DANUBE_RCU_RST_REQ |=1<<30;
+}
+
+#ifdef CONFIG_SYS_RAMBOOT
+phys_size_t initdram(int board_type)
+{
+	return get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_MAX_RAM);
+}
+#elif defined(CONFIG_USE_DDR_RAM)
+phys_size_t initdram(int board_type)
+{
+	return (CONFIG_SYS_MAX_RAM);
+}
+#else
+
+static ulong max_sdram_size(void)     /* per Chip Select */
+{
+	/* The only supported SDRAM data width is 16bit.
+	 */
+#define CFG_DW	4
+
+	/* The only supported number of SDRAM banks is 4.
+	 */
+#define CFG_NB	4
+
+	ulong cfgpb0 = *DANUBE_SDRAM_MC_CFGPB0;
+	int   cols   = cfgpb0 & 0xF;
+	int   rows   = (cfgpb0 & 0xF0) >> 4;
+	ulong size   = (1 << (rows + cols)) * CFG_DW * CFG_NB;
+
+	return size;
+}
+
+/*
+ * Check memory range for valid RAM. A simple memory test determines
+ * the actually available RAM size between addresses `base' and
+ * `base + maxsize'.
+ */
+
+static long int dram_size(long int *base, long int maxsize)
+{
+	volatile long int *addr;
+	ulong cnt, val;
+	ulong save[32];			/* to make test non-destructive */
+	unsigned char i = 0;
+
+	for (cnt = (maxsize / sizeof (long)) >> 1; cnt > 0; cnt >>= 1) {
+		addr = base + cnt;		/* pointer arith! */
+
+		save[i++] = *addr;
+		*addr = ~cnt;
+	}
+
+	/* write 0 to base address */
+	addr = base;
+	save[i] = *addr;
+	*addr = 0;
+
+	/* check at base address */
+	if ((val = *addr) != 0) {
+		*addr = save[i];
+		return (0);
+	}
+
+	for (cnt = 1; cnt < maxsize / sizeof (long); cnt <<= 1) {
+		addr = base + cnt;		/* pointer arith! */
+
+		val = *addr;
+		*addr = save[--i];
+
+		if (val != (~cnt)) {
+			return (cnt * sizeof (long));
+		}
+	}
+	return (maxsize);
+}
+
+phys_size_t initdram(int board_type)
+{
+	int   rows, cols, best_val = *DANUBE_SDRAM_MC_CFGPB0;
+	ulong size, max_size       = 0;
+	ulong our_address;
+
+	/* load t9 into our_address */
+	asm volatile ("move %0, $25" : "=r" (our_address) :);
+
+	/* Can't probe for RAM size unless we are running from Flash.
+	 * find out whether running from DRAM or Flash.
+	 */
+	if (CPHYSADDR(our_address) < CPHYSADDR(PHYS_FLASH_1))
+	{
+		return max_sdram_size();
+	}
+
+	for (cols = 0x8; cols <= 0xC; cols++)
+	{
+		for (rows = 0xB; rows <= 0xD; rows++)
+		{
+			*DANUBE_SDRAM_MC_CFGPB0 = (0x14 << 8) |
+			                          (rows << 4) | cols;
+			size = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
+			                          max_sdram_size());
+
+			if (size > max_size)
+			{
+				best_val = *DANUBE_SDRAM_MC_CFGPB0;
+				max_size = size;
+			}
+		}
+	}
+
+	*DANUBE_SDRAM_MC_CFGPB0 = best_val;
+	return max_size;
+}
+#endif
+
+int checkboard (void)
+{
+	unsigned long chipid = *DANUBE_MPS_CHIPID;
+	int part_num;
+
+	puts ("Board: ");
+
+	part_num = DANUBE_MPS_CHIPID_PARTNUM_GET(chipid);
+	switch (part_num)
+	{
+	case 0x129:
+	case 0x12D:
+		puts("Danube/Twinpass/Vinax-VE ");
+		break;
+	default:
+		printf ("unknown, chip part number 0x%03X ", part_num);
+		break;
+	}
+	printf ("V1.%ld, ", DANUBE_MPS_CHIPID_VERSION_GET(chipid));
+
+	printf("DDR Speed %ld MHz, ", ifx_get_ddr_hz()/1000000);
+	printf("CPU Speed %ld MHz\n", ifx_get_cpuclk()/1000000);
+
+	return 0;
+}
+
+#ifdef CONFIG_SKIP_LOWLEVEL_INIT
+int board_early_init_f(void)
+{
+#ifdef CONFIG_EBU_ADDSEL0
+	(*DANUBE_EBU_ADDSEL0) = CONFIG_EBU_ADDSEL0;
+#endif
+#ifdef CONFIG_EBU_ADDSEL1
+	(*DANUBE_EBU_ADDSEL1) = CONFIG_EBU_ADDSEL1;
+#endif
+#ifdef CONFIG_EBU_ADDSEL2
+	(*DANUBE_EBU_ADDSEL2) = CONFIG_EBU_ADDSEL2;
+#endif
+#ifdef CONFIG_EBU_ADDSEL3
+	(*DANUBE_EBU_ADDSEL3) = CONFIG_EBU_ADDSEL3;
+#endif
+#ifdef CONFIG_EBU_BUSCON0
+	(*DANUBE_EBU_BUSCON0) = CONFIG_EBU_BUSCON0;
+#endif
+#ifdef CONFIG_EBU_BUSCON1
+	(*DANUBE_EBU_BUSCON1) = CONFIG_EBU_BUSCON1;
+#endif
+#ifdef CONFIG_EBU_BUSCON2
+	(*DANUBE_EBU_BUSCON2) = CONFIG_EBU_BUSCON2;
+#endif
+#ifdef CONFIG_EBU_BUSCON3
+	(*DANUBE_EBU_BUSCON3) = CONFIG_EBU_BUSCON3;
+#endif
+
+	return 0;
+}
+#endif /* CONFIG_SKIP_LOWLEVEL_INIT */
+
+#ifdef CONFIG_EXTRA_SWITCH
+static int external_switch_init(void)
+{
+	unsigned short chipid0=0xdead, chipid1=0xbeef;
+	static char * const name = "lq_cpe_eth";
+
+#ifdef CLK_OUT2_25MHZ
+	*DANUBE_GPIO_P0_DIR=0x0000ae78;
+	*DANUBE_GPIO_P0_ALTSEL0=0x00008078;
+	//joelin for Mii-1       *DANUBE_GPIO_P0_ALTSEL1=0x80000080;
+	*DANUBE_GPIO_P0_ALTSEL1=0x80000000; //joelin for Mii-1
+	*DANUBE_CGU_IFCCR=0x00400010;
+	*DANUBE_GPIO_P0_OD=0x0000ae78;
+#endif
+
+	/* earlier no valid response is available, at least on Twinpass & Tantos @ 111MHz, M4530 platform */
+	udelay(100000);
+
+	debug("\nsearching for Samurai switch ... ");
+	if ( (miiphy_read(name, PHYADDR(SAMURAI_ID_REG0), &chipid0)==0) &&
+	     (miiphy_read(name, PHYADDR(SAMURAI_ID_REG1), &chipid1)==0) ) {
+		if (((chipid0 & 0xFFF0) == ID_SAMURAI_0) &&
+		    ((chipid1 & 0x000F) == ID_SAMURAI_1)) {
+			debug("found");
+
+			/* enable "Crossover Auto Detect" + defaults */
+			/* P0 */
+			miiphy_write(name, PHYADDR(0x01), 0x840F);
+			/* P1 */
+			miiphy_write(name, PHYADDR(0x03), 0x840F);
+			/* P2 */
+			miiphy_write(name, PHYADDR(0x05), 0x840F);
+			/* P3 */
+			miiphy_write(name, PHYADDR(0x07), 0x840F);
+			/* P4 */
+			miiphy_write(name, PHYADDR(0x08), 0x840F);
+			/* P5 */
+			miiphy_write(name, PHYADDR(0x09), 0x840F);
+			/* System Control 4: CPU on port 1 and other */
+			miiphy_write(name, PHYADDR(0x12), 0x3602);
+			#ifdef CLK_OUT2_25MHZ
+			/* Bandwidth Control Enable Register: enable */
+			miiphy_write(name, PHYADDR(0x33), 0x4000);
+			#endif
+		}
+	}
+
+	debug("\nsearching for TANTOS switch ... ");
+	if (miiphy_read(name, PHYADDR(0x101), &chipid0) == 0) {
+		if (chipid0 == ID_TANTOS) {
+			debug("found");
+
+			/* P5 Basic Control: Force Link Up */
+			miiphy_write(name, PHYADDR(0xA1), 0x0004);
+			/* P6 Basic Control: Force Link Up */
+			miiphy_write(name, PHYADDR(0xC1), 0x0004);
+			/* RGMII/MII Port Control (P4/5/6) */
+			miiphy_write(name, PHYADDR(0xF5), 0x0773);
+
+			/* Software workaround. */
+			/* PHY reset from P0 to P4. */
+
+			/* set data for indirect write */
+			miiphy_write(name, PHYADDR(0x121), 0x8000);
+
+			/* P0 */
+			miiphy_write(name, PHYADDR(0x120), 0x0400);
+			udelay(1000);
+			/* P1 */
+			miiphy_write(name, PHYADDR(0x120), 0x0420);
+			udelay(1000);
+			/* P2 */
+			miiphy_write(name, PHYADDR(0x120), 0x0440);
+			udelay(1000);
+			/* P3 */
+			miiphy_write(name, PHYADDR(0x120), 0x0460);
+			udelay(1000);
+			/* P4 */
+			miiphy_write(name, PHYADDR(0x120), 0x0480);
+			udelay(1000);
+		}
+	}
+	debug("\n");
+
+	return 0;
+}
+#endif /* CONFIG_EXTRA_SWITCH */
+
+int board_eth_init(bd_t *bis)
+{
+#if defined(CONFIG_IFX_ETOP)
+
+	*DANUBE_PMU_PWDCR &= 0xFFFFEFDF;
+	*DANUBE_PMU_PWDCR &=~(1<<DANUBE_PMU_DMA_SHIFT);/*enable DMA from PMU*/
+
+	if (lq_eth_initialize(bis)<0)
+		return -1;
+
+	*DANUBE_RCU_RST_REQ |=1;
+	udelay(200000);
+	*DANUBE_RCU_RST_REQ &=(unsigned long)~1;
+	udelay(1000);
+
+#ifdef CONFIG_EXTRA_SWITCH
+	if (external_switch_init()<0)
+		return -1;
+#endif /* CONFIG_EXTRA_SWITCH */
+#endif /* CONFIG_IFX_ETOP */
+
+	return 0;
+}
+