Adding upstream version 4.19.249.upstream/4.19.249upstream

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

1 files changed, 156 insertions, 0 deletions

diff --git a/arch/m68k/coldfire/m527x.c b/arch/m68k/coldfire/m527x.c
new file mode 100644
index 000000000..cad462df6
--- /dev/null
+++ b/arch/m68k/coldfire/m527x.c
@@ -0,0 +1,156 @@
+// SPDX-License-Identifier: GPL-2.0
+/***************************************************************************/
+
+/*
+ *	m527x.c  -- platform support for ColdFire 527x based boards
+ *
+ *	Sub-architcture dependent initialization code for the Freescale
+ *	5270/5271 and 5274/5275 CPUs.
+ *
+ *	Copyright (C) 1999-2004, Greg Ungerer (gerg@snapgear.com)
+ *	Copyright (C) 2001-2004, 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/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(fec1, "fec.1", 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_fec1,
+	&clk_mcfi2c0,
+	NULL
+};
+
+/***************************************************************************/
+
+static void __init m527x_qspi_init(void)
+{
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
+#if defined(CONFIG_M5271)
+	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);
+#elif defined(CONFIG_M5275)
+	/* setup QSPS pins for QSPI with gpio CS control */
+	writew(0x003e, MCFGPIO_PAR_QSPI);
+#endif
+#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
+}
+
+/***************************************************************************/
+
+static void __init m527x_i2c_init(void)
+{
+#if IS_ENABLED(CONFIG_I2C_IMX)
+#if defined(CONFIG_M5271)
+	u8 par;
+
+	/* setup Port FECI2C Pin Assignment Register for I2C */
+	/*  set PAR_SCL to SCL and PAR_SDA to SDA */
+	par = readb(MCFGPIO_PAR_FECI2C);
+	par |= 0x0f;
+	writeb(par, MCFGPIO_PAR_FECI2C);
+#elif defined(CONFIG_M5275)
+	u16 par;
+
+	/* setup Port FECI2C Pin Assignment Register for I2C */
+	/*  set PAR_SCL to SCL and PAR_SDA to SDA */
+	par = readw(MCFGPIO_PAR_FECI2C);
+	par |= 0x0f;
+	writew(par, MCFGPIO_PAR_FECI2C);
+#endif
+#endif /* IS_ENABLED(CONFIG_I2C_IMX) */
+}
+
+/***************************************************************************/
+
+static void __init m527x_uarts_init(void)
+{
+	u16 sepmask;
+
+	/*
+	 * External Pin Mask Setting & Enable External Pin for Interface
+	 */
+	sepmask = readw(MCFGPIO_PAR_UART);
+	sepmask |= UART0_ENABLE_MASK | UART1_ENABLE_MASK | UART2_ENABLE_MASK;
+	writew(sepmask, MCFGPIO_PAR_UART);
+}
+
+/***************************************************************************/
+
+static void __init m527x_fec_init(void)
+{
+	u8 v;
+
+	/* Set multi-function pins to ethernet mode for fec0 */
+#if defined(CONFIG_M5271)
+	v = readb(MCFGPIO_PAR_FECI2C);
+	writeb(v | 0xf0, MCFGPIO_PAR_FECI2C);
+#else
+	u16 par;
+
+	par = readw(MCFGPIO_PAR_FECI2C);
+	writew(par | 0xf00, MCFGPIO_PAR_FECI2C);
+	v = readb(MCFGPIO_PAR_FEC0HL);
+	writeb(v | 0xc0, MCFGPIO_PAR_FEC0HL);
+
+	/* Set multi-function pins to ethernet mode for fec1 */
+	par = readw(MCFGPIO_PAR_FECI2C);
+	writew(par | 0xa0, MCFGPIO_PAR_FECI2C);
+	v = readb(MCFGPIO_PAR_FEC1HL);
+	writeb(v | 0xc0, MCFGPIO_PAR_FEC1HL);
+#endif
+}
+
+/***************************************************************************/
+
+void __init config_BSP(char *commandp, int size)
+{
+	mach_sched_init = hw_timer_init;
+	m527x_uarts_init();
+	m527x_fec_init();
+	m527x_qspi_init();
+	m527x_i2c_init();
+}
+
+/***************************************************************************/