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-rw-r--r--arch/m68k/platform/coldfire/m528x.c137
1 files changed, 137 insertions, 0 deletions
diff --git a/arch/m68k/platform/coldfire/m528x.c b/arch/m68k/platform/coldfire/m528x.c
new file mode 100644
index 0000000..7ed1276b
--- /dev/null
+++ b/arch/m68k/platform/coldfire/m528x.c
@@ -0,0 +1,137 @@
+/***************************************************************************/
+
+/*
+ * linux/arch/m68knommu/platform/528x/config.c
+ *
+ * Sub-architcture dependent initialization code for the Freescale
+ * 5280, 5281 and 5282 CPUs.
+ *
+ * Copyright (C) 1999-2003, Greg Ungerer (gerg@snapgear.com)
+ * Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com)
+ */
+
+/***************************************************************************/
+
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <asm/machdep.h>
+#include <asm/coldfire.h>
+#include <asm/mcfsim.h>
+#include <asm/mcfuart.h>
+#include <asm/mcfgpio.h>
+
+/***************************************************************************/
+
+struct mcf_gpio_chip mcf_gpio_chips[] = {
+ MCFGPS(NQ, 1, 7, MCFEPORT_EPDDR, MCFEPORT_EPDR, MCFEPORT_EPPDR),
+ MCFGPS(TA, 8, 4, MCFGPTA_GPTDDR, MCFGPTA_GPTPORT, MCFGPTB_GPTPORT),
+ MCFGPS(TB, 16, 4, MCFGPTB_GPTDDR, MCFGPTB_GPTPORT, MCFGPTB_GPTPORT),
+ MCFGPS(QA, 24, 4, MCFQADC_DDRQA, MCFQADC_PORTQA, MCFQADC_PORTQA),
+ MCFGPS(QB, 32, 4, MCFQADC_DDRQB, MCFQADC_PORTQB, MCFQADC_PORTQB),
+ MCFGPF(A, 40, 8),
+ MCFGPF(B, 48, 8),
+ MCFGPF(C, 56, 8),
+ MCFGPF(D, 64, 8),
+ MCFGPF(E, 72, 8),
+ MCFGPF(F, 80, 8),
+ MCFGPF(G, 88, 8),
+ MCFGPF(H, 96, 8),
+ MCFGPF(J, 104, 8),
+ MCFGPF(DD, 112, 8),
+ MCFGPF(EH, 120, 8),
+ MCFGPF(EL, 128, 8),
+ MCFGPF(AS, 136, 6),
+ MCFGPF(QS, 144, 7),
+ MCFGPF(SD, 152, 6),
+ MCFGPF(TC, 160, 4),
+ MCFGPF(TD, 168, 4),
+ MCFGPF(UA, 176, 4),
+};
+
+unsigned int mcf_gpio_chips_size = ARRAY_SIZE(mcf_gpio_chips);
+
+/***************************************************************************/
+
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
+
+static void __init m528x_qspi_init(void)
+{
+ /* setup Port QS for QSPI with gpio CS control */
+ __raw_writeb(0x07, MCFGPIO_PQSPAR);
+}
+
+#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
+
+/***************************************************************************/
+
+static void __init m528x_uarts_init(void)
+{
+ u8 port;
+
+ /* make sure PUAPAR is set for UART0 and UART1 */
+ port = readb(MCF5282_GPIO_PUAPAR);
+ port |= 0x03 | (0x03 << 2);
+ writeb(port, MCF5282_GPIO_PUAPAR);
+}
+
+/***************************************************************************/
+
+static void __init m528x_fec_init(void)
+{
+ u16 v16;
+
+ /* Set multi-function pins to ethernet mode for fec0 */
+ v16 = readw(MCF_IPSBAR + 0x100056);
+ writew(v16 | 0xf00, MCF_IPSBAR + 0x100056);
+ writeb(0xc0, MCF_IPSBAR + 0x100058);
+}
+
+/***************************************************************************/
+
+#ifdef CONFIG_WILDFIRE
+void wildfire_halt(void)
+{
+ writeb(0, 0x30000007);
+ writeb(0x2, 0x30000007);
+}
+#endif
+
+#ifdef CONFIG_WILDFIREMOD
+void wildfiremod_halt(void)
+{
+ printk(KERN_INFO "WildFireMod hibernating...\n");
+
+ /* Set portE.5 to Digital IO */
+ MCF5282_GPIO_PEPAR &= ~(1 << (5 * 2));
+
+ /* Make portE.5 an output */
+ MCF5282_GPIO_DDRE |= (1 << 5);
+
+ /* Now toggle portE.5 from low to high */
+ MCF5282_GPIO_PORTE &= ~(1 << 5);
+ MCF5282_GPIO_PORTE |= (1 << 5);
+
+ printk(KERN_EMERG "Failed to hibernate. Halting!\n");
+}
+#endif
+
+void __init config_BSP(char *commandp, int size)
+{
+#ifdef CONFIG_WILDFIRE
+ mach_halt = wildfire_halt;
+#endif
+#ifdef CONFIG_WILDFIREMOD
+ mach_halt = wildfiremod_halt;
+#endif
+ mach_sched_init = hw_timer_init;
+ m528x_uarts_init();
+ m528x_fec_init();
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
+ m528x_qspi_init();
+#endif
+}
+
+/***************************************************************************/