ColdFire: Add M5235EVB Platform for MCF523x

Signed-off-by: TsiChungLiew <Tsi-Chung.Liew@freescale.com>

1 files changed, 145 insertions, 0 deletions

diff --git a/cpu/mcf523x/cpu_init.c b/cpu/mcf523x/cpu_init.c
new file mode 100644
index 0000000..a31054d
--- /dev/null
+++ b/cpu/mcf523x/cpu_init.c
@@ -0,0 +1,145 @@
+/*
+ *
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.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 <watchdog.h>
+
+#include <asm/immap.h>
+
+/*
+ * Breath some life into the CPU...
+ *
+ * Set up the memory map,
+ * initialize a bunch of registers,
+ * initialize the UPM's
+ */
+void cpu_init_f(void)
+{
+	volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO;
+	volatile fbcs_t *fbcs = (fbcs_t *) MMAP_FBCS;
+	volatile wdog_t *wdog = (wdog_t *) MMAP_WDOG;
+	volatile scm_t *scm = (scm_t *) MMAP_SCM;
+
+	/* watchdog is enabled by default - disable the watchdog */
+#ifndef CONFIG_WATCHDOG
+	wdog->cr = 0;
+#endif
+
+	scm->rambar = (CFG_INIT_RAM_ADDR | SCM_RAMBAR_BDE);
+
+	/* Port configuration */
+	gpio->par_cs = 0;
+
+#if (defined(CFG_CS0_BASE) && defined(CFG_CS0_MASK) && defined(CFG_CS0_CTRL))
+	fbcs->csar0 = CFG_CS0_BASE;
+	fbcs->cscr0 = CFG_CS0_CTRL;
+	fbcs->csmr0 = CFG_CS0_MASK;
+#endif
+
+#if (defined(CFG_CS1_BASE) && defined(CFG_CS1_MASK) && defined(CFG_CS1_CTRL))
+	gpio->par_cs |= GPIO_PAR_CS_CS1;
+	fbcs->csar1 = CFG_CS1_BASE;
+	fbcs->cscr1 = CFG_CS1_CTRL;
+	fbcs->csmr1 = CFG_CS1_MASK;
+#endif
+
+#if (defined(CFG_CS2_BASE) && defined(CFG_CS2_MASK) && defined(CFG_CS2_CTRL))
+	gpio->par_cs |= GPIO_PAR_CS_CS2;
+	fbcs->csar2 = CFG_CS2_BASE;
+	fbcs->cscr2 = CFG_CS2_CTRL;
+	fbcs->csmr2 = CFG_CS2_MASK;
+#endif
+
+#if (defined(CFG_CS3_BASE) && defined(CFG_CS3_MASK) && defined(CFG_CS3_CTRL))
+	gpio->par_cs |= GPIO_PAR_CS_CS3;
+	fbcs->csar3 = CFG_CS3_BASE;
+	fbcs->cscr3 = CFG_CS3_CTRL;
+	fbcs->csmr3 = CFG_CS3_MASK;
+#endif
+
+#if (defined(CFG_CS4_BASE) && defined(CFG_CS4_MASK) && defined(CFG_CS4_CTRL))
+	gpio->par_cs |= GPIO_PAR_CS_CS4;
+	fbcs->csar4 = CFG_CS4_BASE;
+	fbcs->cscr4 = CFG_CS4_CTRL;
+	fbcs->csmr4 = CFG_CS4_MASK;
+#endif
+
+#if (defined(CFG_CS5_BASE) && defined(CFG_CS5_MASK) && defined(CFG_CS5_CTRL))
+	gpio->par_cs |= GPIO_PAR_CS_CS5;
+	fbcs->csar5 = CFG_CS5_BASE;
+	fbcs->cscr5 = CFG_CS5_CTRL;
+	fbcs->csmr5 = CFG_CS5_MASK;
+#endif
+
+#if (defined(CFG_CS6_BASE) && defined(CFG_CS6_MASK) && defined(CFG_CS6_CTRL))
+	gpio->par_cs |= GPIO_PAR_CS_CS6;
+	fbcs->csar6 = CFG_CS6_BASE;
+	fbcs->cscr6 = CFG_CS6_CTRL;
+	fbcs->csmr6 = CFG_CS6_MASK;
+#endif
+
+#if (defined(CFG_CS7_BASE) && defined(CFG_CS7_MASK) && defined(CFG_CS7_CTRL))
+	gpio->par_cs |= GPIO_PAR_CS_CS7;
+	fbcs->csar7 = CFG_CS7_BASE;
+	fbcs->cscr7 = CFG_CS7_CTRL;
+	fbcs->csmr7 = CFG_CS7_MASK;
+#endif
+
+#ifdef CONFIG_FSL_I2C
+	gpio->par_feci2c &= ~(GPIO_PAR_FECI2C_SCL_MASK | GPIO_PAR_FECI2C_SDA_MASK);
+	gpio->par_feci2c |= (GPIO_PAR_FECI2C_SCL_I2CSCL | GPIO_PAR_FECI2C_SDA_I2CSDA);
+#endif
+
+	icache_enable();
+}
+
+/*
+ * initialize higher level parts of CPU like timers
+ */
+int cpu_init_r(void)
+{
+	return (0);
+}
+
+void uart_port_conf(void)
+{
+        volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO;
+
+        /* Setup Ports: */
+        switch (CFG_UART_PORT) {
+        case 0:
+                gpio->par_uart = (GPIO_PAR_UART_U0RXD | GPIO_PAR_UART_U0TXD);
+                break;
+        case 1:
+                gpio->par_uart =
+                    (GPIO_PAR_UART_U1RXD_U1RXD | GPIO_PAR_UART_U1TXD_U1TXD);
+                break;
+        case 2:
+                gpio->par_timer = (GPIO_PAR_UART_U2RXD | GPIO_PAR_UART_U2TXD);
+                break;
+        }
+}