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-rw-r--r--arch/m68k/platform/coldfire/m523x.c88
1 files changed, 88 insertions, 0 deletions
diff --git a/arch/m68k/platform/coldfire/m523x.c b/arch/m68k/platform/coldfire/m523x.c
new file mode 100644
index 0000000..5d57a42
--- /dev/null
+++ b/arch/m68k/platform/coldfire/m523x.c
@@ -0,0 +1,88 @@
+/***************************************************************************/
+
+/*
+ * linux/arch/m68knommu/platform/523x/config.c
+ *
+ * Sub-architcture dependent initialization code for the Freescale
+ * 523x CPUs.
+ *
+ * Copyright (C) 1999-2005, 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/io.h>
+#include <asm/machdep.h>
+#include <asm/coldfire.h>
+#include <asm/mcfsim.h>
+#include <asm/mcfgpio.h>
+
+/***************************************************************************/
+
+struct mcf_gpio_chip mcf_gpio_chips[] = {
+ MCFGPS(PIRQ, 1, 7, MCFEPORT_EPDDR, MCFEPORT_EPDR, MCFEPORT_EPPDR),
+ MCFGPF(ADDR, 13, 3),
+ MCFGPF(DATAH, 16, 8),
+ MCFGPF(DATAL, 24, 8),
+ MCFGPF(BUSCTL, 32, 8),
+ MCFGPF(BS, 40, 4),
+ MCFGPF(CS, 49, 7),
+ MCFGPF(SDRAM, 56, 6),
+ MCFGPF(FECI2C, 64, 4),
+ MCFGPF(UARTH, 72, 2),
+ MCFGPF(UARTL, 80, 8),
+ MCFGPF(QSPI, 88, 5),
+ MCFGPF(TIMER, 96, 8),
+ MCFGPF(ETPU, 104, 3),
+};
+
+unsigned int mcf_gpio_chips_size = ARRAY_SIZE(mcf_gpio_chips);
+
+/***************************************************************************/
+
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
+
+static void __init m523x_qspi_init(void)
+{
+ u16 par;
+
+ /* setup QSPS pins for QSPI with gpio CS control */
+ writeb(0x1f, MCFGPIO_PAR_QSPI);
+ /* and CS2 & CS3 as gpio */
+ par = readw(MCFGPIO_PAR_TIMER);
+ par &= 0x3f3f;
+ writew(par, MCFGPIO_PAR_TIMER);
+}
+
+#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
+
+/***************************************************************************/
+
+static void __init m523x_fec_init(void)
+{
+ u16 par;
+ u8 v;
+
+ /* Set multi-function pins to ethernet use */
+ par = readw(MCF_IPSBAR + 0x100082);
+ writew(par | 0xf00, MCF_IPSBAR + 0x100082);
+ v = readb(MCF_IPSBAR + 0x100078);
+ writeb(v | 0xc0, MCF_IPSBAR + 0x100078);
+}
+
+/***************************************************************************/
+
+void __init config_BSP(char *commandp, int size)
+{
+ mach_sched_init = hw_timer_init;
+ m523x_fec_init();
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
+ m523x_qspi_init();
+#endif
+}
+
+/***************************************************************************/