add ASTRO MCF5373L board

This patch adds support for ASTRO board(s) based on MCF5373L.

Signed-off-by: Wolfgang Wegner <w.wegner@astro-kom.de>

1 files changed, 211 insertions, 0 deletions

diff --git a/board/astro/mcf5373l/mcf5373l.c b/board/astro/mcf5373l/mcf5373l.c
new file mode 100644
index 0000000..3c09a21
--- /dev/null
+++ b/board/astro/mcf5373l/mcf5373l.c
@@ -0,0 +1,211 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ * modified by Wolfgang Wegner <w.wegner@astro-kom.de> for ASTRO 5373l
+ *
+ * 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 <watchdog.h>
+#include <command.h>
+#include <asm/m5329.h>
+#include <asm/immap_5329.h>
+#include <asm/io.h>
+
+/* needed for astro bus: */
+#include <asm/uart.h>
+#include "astro.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+extern void uart_port_conf(void);
+
+int checkboard(void)
+{
+	puts("Board: ");
+	puts("ASTRO MCF5373L (Urmel) Board\n");
+	return 0;
+}
+
+phys_size_t initdram(int board_type)
+{
+#if !defined(CONFIG_MONITOR_IS_IN_RAM)
+	sdram_t *sdp = (sdram_t *)(MMAP_SDRAM);
+
+	/*
+	 * GPIO configuration for bus should be set correctly from reset,
+	 * so we do not care! First, set up address space: at this point,
+	 * we should be running from internal SRAM;
+	 * so use CONFIG_SYS_SDRAM_BASE as the base address for SDRAM,
+	 * and do not care where it is
+	 */
+	__raw_writel((CONFIG_SYS_SDRAM_BASE & 0xFFF00000) | 0x00000018,
+			&sdp->cs0);
+	__raw_writel((CONFIG_SYS_SDRAM_BASE & 0xFFF00000) | 0x00000000,
+			&sdp->cs1);
+	/*
+	 * I am not sure from the data sheet, but it seems burst length
+	 * has to be 8 for the 16 bit data bus we use;
+	 * so these values are for BL = 8
+	 */
+	__raw_writel(0x33211530, &sdp->cfg1);
+	__raw_writel(0x56570000, &sdp->cfg2);
+	/* send PrechargeALL, REF and IREF remain cleared! */
+	__raw_writel(0xE1462C02, &sdp->ctrl);
+	udelay(1);
+	/* refresh SDRAM twice */
+	__raw_writel(0xE1462C04, &sdp->ctrl);
+	udelay(1);
+	__raw_writel(0xE1462C04, &sdp->ctrl);
+	/* init MR  */
+	__raw_writel(0x008D0000, &sdp->mode);
+	/* initialize EMR */
+	__raw_writel(0x80010000, &sdp->mode);
+	/* wait until DLL is locked */
+	udelay(1);
+	/*
+	 * enable automatic refresh, lock mode register,
+	 * clear iref and ipall
+	 */
+	__raw_writel(0x71462C00, &sdp->ctrl);
+	/* Dummy write to start SDRAM */
+	writel(0, CONFIG_SYS_SDRAM_BASE);
+#endif
+
+	/*
+	 * for get_ram_size() to work, both CS areas have to be
+	 * configured, i.e. CS1 has to be explicitely disabled, else
+	 * probing for memory will cause the SDRAM bus to hang!
+	 * (Do not rely on the SDCS register(s) being set to 0x00000000
+	 * during reset as stated in the data sheet.)
+	 */
+	return get_ram_size((unsigned long *)CONFIG_SYS_SDRAM_BASE,
+				0x80000000 - CONFIG_SYS_SDRAM_BASE);
+}
+
+#define UART_BASE MMAP_UART0
+int rs_serial_init(int port, int baud)
+{
+	uart_t *uart;
+	u32 counter;
+
+	switch (port) {
+	case 0:
+		uart = (uart_t *)(MMAP_UART0);
+		break;
+	case 1:
+		uart = (uart_t *)(MMAP_UART1);
+		break;
+	case 2:
+		uart = (uart_t *)(MMAP_UART2);
+		break;
+	default:
+		uart = (uart_t *)(MMAP_UART0);
+	}
+
+	uart_port_conf();
+
+	/* write to SICR: SIM2 = uart mode,dcd does not affect rx */
+	writeb(UART_UCR_RESET_RX, &uart->ucr);
+	writeb(UART_UCR_RESET_TX, &uart->ucr);
+	writeb(UART_UCR_RESET_ERROR, &uart->ucr);
+	writeb(UART_UCR_RESET_MR, &uart->ucr);
+	__asm__ ("nop");
+
+	writeb(0, &uart->uimr);
+
+	/* write to CSR: RX/TX baud rate from timers */
+	writeb(UART_UCSR_RCS_SYS_CLK | UART_UCSR_TCS_SYS_CLK, &uart->ucsr);
+
+	writeb(UART_UMR_BC_8 | UART_UMR_PM_NONE, &uart->umr);
+	writeb(UART_UMR_SB_STOP_BITS_1, &uart->umr);
+
+	/* Setting up BaudRate */
+	counter = (u32) (gd->bus_clk / (baud));
+	counter >>= 5;
+
+	/* write to CTUR: divide counter upper byte */
+	writeb((u8) ((counter & 0xff00) >> 8), &uart->ubg1);
+	/* write to CTLR: divide counter lower byte */
+	writeb((u8) (counter & 0x00ff), &uart->ubg2);
+
+	writeb(UART_UCR_RX_ENABLED | UART_UCR_TX_ENABLED, &uart->ucr);
+
+	return 0;
+}
+
+void astro_put_char(char ch)
+{
+	uart_t *uart;
+	unsigned long timer;
+
+	uart = (uart_t *)(MMAP_UART0);
+	/*
+	 * Wait for last character to go. Timeout of 6ms should
+	 * be enough for our lowest baud rate of 2400.
+	 */
+	timer = get_timer(0);
+	while (get_timer(timer) < 6) {
+		if (readb(&uart->usr) & UART_USR_TXRDY)
+			break;
+	}
+	writeb(ch, &uart->utb);
+
+	return;
+}
+
+int astro_is_char(void)
+{
+	uart_t *uart;
+
+	uart = (uart_t *)(MMAP_UART0);
+	return readb(&uart->usr) & UART_USR_RXRDY;
+}
+
+int astro_get_char(void)
+{
+	uart_t *uart;
+
+	uart = (uart_t *)(MMAP_UART0);
+	while (!(readb(&uart->usr) & UART_USR_RXRDY)) ;
+	return readb(&uart->urb);
+}
+
+int misc_init_r(void)
+{
+	int retval = 0;
+
+	puts("Configure Xilinx FPGA...");
+	retval = astro5373l_xilinx_load();
+	if (!retval) {
+		puts("failed!\n");
+		return retval;
+	}
+	puts("done\n");
+
+	puts("Configure Altera FPGA...");
+	retval = astro5373l_altera_load();
+	if (!retval) {
+		puts("failed!\n");
+		return retval;
+	}
+	puts("done\n");
+
+	return retval;
+}