init commit via android 4.4 uboot

1 files changed, 178 insertions, 0 deletions

diff --git a/board/csb272/csb272.c b/board/csb272/csb272.c
new file mode 100755
index 0000000..24c6f0d
--- /dev/null
+++ b/board/csb272/csb272.c
@@ -0,0 +1,178 @@
+/*
+ * (C) Copyright 2004
+ * Tolunay Orkun, Nextio Inc., torkun@nextio.com
+ *
+ * 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 <asm/processor.h>
+#include <i2c.h>
+#include <miiphy.h>
+#include <ppc4xx_enet.h>
+
+/*
+ * Configuration data for AMIS FS6377-01 Programmable 3-PLL Clock Generator
+ *
+ * CLKA output => Epson LCD Controller
+ * CLKB output => Not Connected
+ * CLKC output => Ethernet
+ * CLKD output => UART external clock
+ *
+ * Note: these values are obtained from device after init by micromonitor
+*/
+uchar pll_fs6377_regs[16] = {
+	0x28, 0xef, 0x53, 0x03, 0x4b, 0x80, 0x32, 0x80,
+	0x94, 0x32, 0x80, 0xd4, 0x56, 0xf6, 0xf6, 0xe0 };
+
+/*
+ * pll_init: Initialize AMIS IC FS6377-01 PLL
+ *
+ * PLL supplies Epson LCD Clock, Ethernet Clock and UART external clock
+ *
+ */
+int pll_init(void)
+{
+	i2c_init(CFG_I2C_SPEED, CFG_I2C_SLAVE);
+
+	return  i2c_write(CFG_I2C_PLL_ADDR, 0, 1,
+		(uchar *) pll_fs6377_regs, sizeof(pll_fs6377_regs));
+}
+
+/*
+ * board_early_init_f: do early board initialization
+ *
+ */
+int board_early_init_f(void)
+{
+	/* initialize PLL so UART, LCD, Ethernet clocked at correctly */
+	(void) get_clocks();
+	pll_init();
+
+   /*-------------------------------------------------------------------------+
+   | Interrupt controller setup for the Walnut board.
+   | Note: IRQ 0-15  405GP internally generated; active high; level sensitive
+   |       IRQ 16    405GP internally generated; active low; level sensitive
+   |       IRQ 17-24 RESERVED
+   |       IRQ 25 (EXT IRQ 0) FPGA; active high; level sensitive
+   |       IRQ 26 (EXT IRQ 1) SMI; active high; level sensitive
+   |       IRQ 27 (EXT IRQ 2) Not Used
+   |       IRQ 28 (EXT IRQ 3) PCI SLOT 3; active low; level sensitive
+   |       IRQ 29 (EXT IRQ 4) PCI SLOT 2; active low; level sensitive
+   |       IRQ 30 (EXT IRQ 5) PCI SLOT 1; active low; level sensitive
+   |       IRQ 31 (EXT IRQ 6) PCI SLOT 0; active low; level sensitive
+   | Note for Walnut board:
+   |       An interrupt taken for the FPGA (IRQ 25) indicates that either
+   |       the Mouse, Keyboard, IRDA, or External Expansion caused the
+   |       interrupt. The FPGA must be read to determine which device
+   |       caused the interrupt. The default setting of the FPGA clears
+   |
+   +-------------------------------------------------------------------------*/
+
+	mtdcr (uicsr, 0xFFFFFFFF);   /* clear all ints */
+	mtdcr (uicer, 0x00000000);   /* disable all ints */
+	mtdcr (uiccr, 0x00000000);   /* set all to be non-critical */
+	mtdcr (uicpr, 0xFFFFFF83);   /* set int polarities */
+	mtdcr (uictr, 0x10000000);   /* set int trigger levels */
+	mtdcr (uicvcr, 0x00000001);  /* set vect base=0,INT0 highest priority */
+	mtdcr (uicsr, 0xFFFFFFFF);   /* clear all ints */
+
+	mtebc (epcr, 0xa8400000);   /* EBC always driven */
+
+	return 0; /* success */
+}
+
+/*
+ * checkboard: identify/verify the board we are running
+ *
+ * Remark: we just assume it is correct board here!
+ *
+ */
+int checkboard(void)
+{
+	printf("BOARD: Cogent CSB272\n");
+
+	return 0; /* success */
+}
+
+/*
+ * initram: Determine the size of mounted DRAM
+ *
+ * Size is determined by reading SDRAM configuration registers as
+ * configured by initialization code
+ *
+ */
+long initdram (int board_type)
+{
+	ulong tot_size;
+	ulong bank_size;
+	ulong tmp;
+
+	tot_size = 0;
+
+	mtdcr (memcfga, mem_mb0cf);
+	tmp = mfdcr (memcfgd);
+	if (tmp & 0x00000001) {
+		bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
+		tot_size += bank_size;
+	}
+
+	mtdcr (memcfga, mem_mb1cf);
+	tmp = mfdcr (memcfgd);
+	if (tmp & 0x00000001) {
+		bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
+		tot_size += bank_size;
+	}
+
+	mtdcr (memcfga, mem_mb2cf);
+	tmp = mfdcr (memcfgd);
+	if (tmp & 0x00000001) {
+		bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
+		tot_size += bank_size;
+	}
+
+	mtdcr (memcfga, mem_mb3cf);
+	tmp = mfdcr (memcfgd);
+	if (tmp & 0x00000001) {
+		bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
+		tot_size += bank_size;
+	}
+
+	return tot_size;
+}
+
+/*
+ * last_stage_init: final configurations (such as PHY etc)
+ *
+ */
+int last_stage_init(void)
+{
+	/* initialize the PHY */
+	miiphy_reset("ppc_4xx_eth0", CONFIG_PHY_ADDR);
+
+	/* AUTO neg */
+	miiphy_write("ppc_4xx_eth0", CONFIG_PHY_ADDR, PHY_BMCR,
+			PHY_BMCR_AUTON | PHY_BMCR_RST_NEG);
+
+	/* LEDs     */
+	miiphy_write("ppc_4xx_eth0", CONFIG_PHY_ADDR, PHY_FCSCR, 0x0d08);
+
+
+	return 0; /* success */
+}