Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 151 insertions, 0 deletions

diff --git a/arch/m68k/coldfire/m528x.c b/arch/m68k/coldfire/m528x.c
new file mode 100644
index 000000000..7ad319388
--- /dev/null
+++ b/arch/m68k/coldfire/m528x.c
@@ -0,0 +1,151 @@
+// SPDX-License-Identifier: GPL-2.0
+/***************************************************************************/
+
+/*
+ *	m528x.c  -- platform support for ColdFire 528x based boards
+ *
+ *	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/mcfclk.h>
+
+/***************************************************************************/
+
+DEFINE_CLK(pll, "pll.0", MCF_CLK);
+DEFINE_CLK(sys, "sys.0", MCF_BUSCLK);
+DEFINE_CLK(mcfpit0, "mcfpit.0", MCF_CLK);
+DEFINE_CLK(mcfpit1, "mcfpit.1", MCF_CLK);
+DEFINE_CLK(mcfpit2, "mcfpit.2", MCF_CLK);
+DEFINE_CLK(mcfpit3, "mcfpit.3", MCF_CLK);
+DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK);
+DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK);
+DEFINE_CLK(mcfuart2, "mcfuart.2", MCF_BUSCLK);
+DEFINE_CLK(mcfqspi0, "mcfqspi.0", MCF_BUSCLK);
+DEFINE_CLK(fec0, "fec.0", MCF_BUSCLK);
+DEFINE_CLK(mcfi2c0, "imx1-i2c.0", MCF_BUSCLK);
+
+struct clk *mcf_clks[] = {
+	&clk_pll,
+	&clk_sys,
+	&clk_mcfpit0,
+	&clk_mcfpit1,
+	&clk_mcfpit2,
+	&clk_mcfpit3,
+	&clk_mcfuart0,
+	&clk_mcfuart1,
+	&clk_mcfuart2,
+	&clk_mcfqspi0,
+	&clk_fec0,
+	&clk_mcfi2c0,
+	NULL
+};
+
+/***************************************************************************/
+
+static void __init m528x_qspi_init(void)
+{
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
+	/* 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_i2c_init(void)
+{
+#if IS_ENABLED(CONFIG_I2C_IMX)
+	u16 paspar;
+
+	/* setup Port AS Pin Assignment Register for I2C */
+	/*  set PASPA0 to SCL and PASPA1 to SDA */
+	paspar = readw(MCFGPIO_PASPAR);
+	paspar |= 0xF;
+	writew(paspar, MCFGPIO_PASPAR);
+#endif /* IS_ENABLED(CONFIG_I2C_IMX) */
+}
+
+/***************************************************************************/
+
+static void __init m528x_uarts_init(void)
+{
+	u8 port;
+
+	/* make sure PUAPAR is set for UART0 and UART1 */
+	port = readb(MCFGPIO_PUAPAR);
+	port |= 0x03 | (0x03 << 2);
+	writeb(port, MCFGPIO_PUAPAR);
+}
+
+/***************************************************************************/
+
+static void __init m528x_fec_init(void)
+{
+	u16 v16;
+
+	/* Set multi-function pins to ethernet mode for fec0 */
+	v16 = readw(MCFGPIO_PASPAR);
+	writew(v16 | 0xf00, MCFGPIO_PASPAR);
+	writeb(0xc0, MCFGPIO_PEHLPAR);
+}
+
+/***************************************************************************/
+
+#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 */
+	writew(readw(MCFGPIO_PEPAR) & ~(1 << (5 * 2)), MCFGPIO_PEPAR);
+
+	/* Make portE.5 an output */
+	writeb(readb(MCFGPIO_PDDR_E) | (1 << 5), MCFGPIO_PDDR_E);
+
+	/* Now toggle portE.5 from low to high */
+	writeb(readb(MCFGPIO_PODR_E) & ~(1 << 5), MCFGPIO_PODR_E);
+	writeb(readb(MCFGPIO_PODR_E) | (1 << 5), MCFGPIO_PODR_E);
+
+	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();
+	m528x_qspi_init();
+	m528x_i2c_init();
+}
+
+/***************************************************************************/