// SPDX-License-Identifier: GPL-2.0
/*
* m5441x.c -- support for Coldfire m5441x processors
*
* (C) Copyright Steven King <sfking@fdwdc.com>
*/
#include <linux/clkdev.h>
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/clk.h>
#include <asm /machdep.h>
#include <asm /coldfire.h>
#include <asm /mcfsim.h>
#include <asm /mcfuart.h>
#include <asm /mcfdma.h>
#include <asm /mcfclk.h>
DEFINE_CLK(0, "flexbus" , 2, MCF_CLK);
DEFINE_CLK(0, "flexcan.0" , 8, MCF_CLK);
DEFINE_CLK(0, "flexcan.1" , 9, MCF_CLK);
DEFINE_CLK(0, "imx1-i2c.1" , 14, MCF_CLK);
DEFINE_CLK(0, "mcfdspi.1" , 15, MCF_CLK);
DEFINE_CLK(0, "edma" , 17, MCF_CLK);
DEFINE_CLK(0, "intc.0" , 18, MCF_CLK);
DEFINE_CLK(0, "intc.1" , 19, MCF_CLK);
DEFINE_CLK(0, "intc.2" , 20, MCF_CLK);
DEFINE_CLK(0, "imx1-i2c.0" , 22, MCF_CLK);
DEFINE_CLK(0, "fsl-dspi.0" , 23, MCF_CLK);
DEFINE_CLK(0, "mcfuart.0" , 24, MCF_BUSCLK);
DEFINE_CLK(0, "mcfuart.1" , 25, MCF_BUSCLK);
DEFINE_CLK(0, "mcfuart.2" , 26, MCF_BUSCLK);
DEFINE_CLK(0, "mcfuart.3" , 27, MCF_BUSCLK);
DEFINE_CLK(0, "mcftmr.0" , 28, MCF_BUSCLK);
DEFINE_CLK(0, "mcftmr.1" , 29, MCF_BUSCLK);
DEFINE_CLK(0, "mcftmr.2" , 30, MCF_BUSCLK);
DEFINE_CLK(0, "mcftmr.3" , 31, MCF_BUSCLK);
DEFINE_CLK(0, "mcfpit.0" , 32, MCF_BUSCLK);
DEFINE_CLK(0, "mcfpit.1" , 33, MCF_BUSCLK);
DEFINE_CLK(0, "mcfpit.2" , 34, MCF_BUSCLK);
DEFINE_CLK(0, "mcfpit.3" , 35, MCF_BUSCLK);
DEFINE_CLK(0, "mcfeport.0" , 37, MCF_CLK);
DEFINE_CLK(0, "mcfadc.0" , 38, MCF_CLK);
DEFINE_CLK(0, "mcfdac.0" , 39, MCF_CLK);
DEFINE_CLK(0, "mcfrtc.0" , 42, MCF_CLK);
DEFINE_CLK(0, "mcfsim.0" , 43, MCF_CLK);
DEFINE_CLK(0, "mcfusb-otg.0" , 44, MCF_CLK);
DEFINE_CLK(0, "mcfusb-host.0" , 45, MCF_CLK);
DEFINE_CLK(0, "mcfddr-sram.0" , 46, MCF_CLK);
DEFINE_CLK(0, "mcfssi.0" , 47, MCF_CLK);
DEFINE_CLK(0, "pll.0" , 48, MCF_CLK);
DEFINE_CLK(0, "mcfrng.0" , 49, MCF_CLK);
DEFINE_CLK(0, "mcfssi.1" , 50, MCF_CLK);
DEFINE_CLK(0, "sdhci-esdhc-mcf.0" , 51, MCF_CLK);
DEFINE_CLK(0, "enet-fec.0" , 53, MCF_CLK);
DEFINE_CLK(0, "enet-fec.1" , 54, MCF_CLK);
DEFINE_CLK(0, "switch.0" , 55, MCF_CLK);
DEFINE_CLK(0, "switch.1" , 56, MCF_CLK);
DEFINE_CLK(0, "nand.0" , 63, MCF_CLK);
DEFINE_CLK(1, "mcfow.0" , 2, MCF_CLK);
DEFINE_CLK(1, "imx1-i2c.2" , 4, MCF_CLK);
DEFINE_CLK(1, "imx1-i2c.3" , 5, MCF_CLK);
DEFINE_CLK(1, "imx1-i2c.4" , 6, MCF_CLK);
DEFINE_CLK(1, "imx1-i2c.5" , 7, MCF_CLK);
DEFINE_CLK(1, "mcfuart.4" , 24, MCF_BUSCLK);
DEFINE_CLK(1, "mcfuart.5" , 25, MCF_BUSCLK);
DEFINE_CLK(1, "mcfuart.6" , 26, MCF_BUSCLK);
DEFINE_CLK(1, "mcfuart.7" , 27, MCF_BUSCLK);
DEFINE_CLK(1, "mcfuart.8" , 28, MCF_BUSCLK);
DEFINE_CLK(1, "mcfuart.9" , 29, MCF_BUSCLK);
DEFINE_CLK(1, "mcfpwm.0" , 34, MCF_BUSCLK);
DEFINE_CLK(1, "sys.0" , 36, MCF_BUSCLK);
DEFINE_CLK(1, "gpio.0" , 37, MCF_BUSCLK);
DEFINE_CLK(2, "ipg.0" , 0, MCF_CLK);
DEFINE_CLK(2, "ahb.0" , 1, MCF_CLK);
DEFINE_CLK(2, "per.0" , 2, MCF_CLK);
static struct clk_lookup m5411x_clk_lookup[] = {
CLKDEV_INIT("flexbus" , NULL, &__clk_0_2),
CLKDEV_INIT("mcfcan.0" , NULL, &__clk_0_8),
CLKDEV_INIT("mcfcan.1" , NULL, &__clk_0_9),
CLKDEV_INIT("imx1-i2c.1" , NULL, &__clk_0_14),
CLKDEV_INIT("mcfdspi.1" , NULL, &__clk_0_15),
CLKDEV_INIT("edma" , NULL, &__clk_0_17),
CLKDEV_INIT("intc.0" , NULL, &__clk_0_18),
CLKDEV_INIT("intc.1" , NULL, &__clk_0_19),
CLKDEV_INIT("intc.2" , NULL, &__clk_0_20),
CLKDEV_INIT("imx1-i2c.0" , NULL, &__clk_0_22),
CLKDEV_INIT("fsl-dspi.0" , NULL, &__clk_0_23),
CLKDEV_INIT("mcfuart.0" , NULL, &__clk_0_24),
CLKDEV_INIT("mcfuart.1" , NULL, &__clk_0_25),
CLKDEV_INIT("mcfuart.2" , NULL, &__clk_0_26),
CLKDEV_INIT("mcfuart.3" , NULL, &__clk_0_27),
CLKDEV_INIT("mcftmr.0" , NULL, &__clk_0_28),
CLKDEV_INIT("mcftmr.1" , NULL, &__clk_0_29),
CLKDEV_INIT("mcftmr.2" , NULL, &__clk_0_30),
CLKDEV_INIT("mcftmr.3" , NULL, &__clk_0_31),
CLKDEV_INIT("mcfpit.0" , NULL, &__clk_0_32),
CLKDEV_INIT("mcfpit.1" , NULL, &__clk_0_33),
CLKDEV_INIT("mcfpit.2" , NULL, &__clk_0_34),
CLKDEV_INIT("mcfpit.3" , NULL, &__clk_0_35),
CLKDEV_INIT("mcfeport.0" , NULL, &__clk_0_37),
CLKDEV_INIT("mcfadc.0" , NULL, &__clk_0_38),
CLKDEV_INIT("mcfdac.0" , NULL, &__clk_0_39),
CLKDEV_INIT("mcfrtc.0" , NULL, &__clk_0_42),
CLKDEV_INIT("mcfsim.0" , NULL, &__clk_0_43),
CLKDEV_INIT("mcfusb-otg.0" , NULL, &__clk_0_44),
CLKDEV_INIT("mcfusb-host.0" , NULL, &__clk_0_45),
CLKDEV_INIT("mcfddr-sram.0" , NULL, &__clk_0_46),
CLKDEV_INIT("mcfssi.0" , NULL, &__clk_0_47),
CLKDEV_INIT(NULL, "pll.0" , &__clk_0_48),
CLKDEV_INIT("mcfrng.0" , NULL, &__clk_0_49),
CLKDEV_INIT("mcfssi.1" , NULL, &__clk_0_50),
CLKDEV_INIT("sdhci-esdhc-mcf.0" , NULL, &__clk_0_51),
CLKDEV_INIT("enet-fec.0" , NULL, &__clk_0_53),
CLKDEV_INIT("enet-fec.1" , NULL, &__clk_0_54),
CLKDEV_INIT("switch.0" , NULL, &__clk_0_55),
CLKDEV_INIT("switch.1" , NULL, &__clk_0_56),
CLKDEV_INIT("nand.0" , NULL, &__clk_0_63),
CLKDEV_INIT("mcfow.0" , NULL, &__clk_1_2),
CLKDEV_INIT("imx1-i2c.2" , NULL, &__clk_1_4),
CLKDEV_INIT("imx1-i2c.3" , NULL, &__clk_1_5),
CLKDEV_INIT("imx1-i2c.4" , NULL, &__clk_1_6),
CLKDEV_INIT("imx1-i2c.5" , NULL, &__clk_1_7),
CLKDEV_INIT("mcfuart.4" , NULL, &__clk_1_24),
CLKDEV_INIT("mcfuart.5" , NULL, &__clk_1_25),
CLKDEV_INIT("mcfuart.6" , NULL, &__clk_1_26),
CLKDEV_INIT("mcfuart.7" , NULL, &__clk_1_27),
CLKDEV_INIT("mcfuart.8" , NULL, &__clk_1_28),
CLKDEV_INIT("mcfuart.9" , NULL, &__clk_1_29),
CLKDEV_INIT("mcfpwm.0" , NULL, &__clk_1_34),
CLKDEV_INIT(NULL, "sys.0" , &__clk_1_36),
CLKDEV_INIT("gpio.0" , NULL, &__clk_1_37),
CLKDEV_INIT("ipg.0" , NULL, &__clk_2_0),
CLKDEV_INIT("ahb.0" , NULL, &__clk_2_1),
CLKDEV_INIT("per.0" , NULL, &__clk_2_2),
};
static struct clk * const enable_clks[] __initconst = {
/* make sure these clocks are enabled */
&__clk_0_8, /* flexcan.0 */
&__clk_0_9, /* flexcan.1 */
&__clk_0_15, /* dspi.1 */
&__clk_0_17, /* eDMA */
&__clk_0_18, /* intc0 */
&__clk_0_19, /* intc0 */
&__clk_0_20, /* intc0 */
&__clk_0_23, /* dspi.0 */
&__clk_0_24, /* uart0 */
&__clk_0_25, /* uart1 */
&__clk_0_26, /* uart2 */
&__clk_0_27, /* uart3 */
&__clk_0_33, /* pit.1 */
&__clk_0_37, /* eport */
&__clk_0_48, /* pll */
&__clk_0_51, /* esdhc */
&__clk_1_36, /* CCM/reset module/Power management */
&__clk_1_37, /* gpio */
};
static struct clk * const disable_clks[] __initconst = {
&__clk_0_14, /* i2c.1 */
&__clk_0_22, /* i2c.0 */
&__clk_0_23, /* dspi.0 */
&__clk_0_28, /* tmr.0 */
&__clk_0_29, /* tmr.1 */
&__clk_0_30, /* tmr.2 */
&__clk_0_31, /* tmr.3 */
&__clk_0_32, /* pit.0 */
&__clk_0_34, /* pit.2 */
&__clk_0_35, /* pit.3 */
&__clk_0_38, /* adc */
&__clk_0_39, /* dac */
&__clk_0_44, /* usb otg */
&__clk_0_45, /* usb host */
&__clk_0_47, /* ssi.0 */
&__clk_0_49, /* rng */
&__clk_0_50, /* ssi.1 */
&__clk_0_53, /* enet-fec */
&__clk_0_54, /* enet-fec */
&__clk_0_55, /* switch.0 */
&__clk_0_56, /* switch.1 */
&__clk_1_2, /* 1-wire */
&__clk_1_4, /* i2c.2 */
&__clk_1_5, /* i2c.3 */
&__clk_1_6, /* i2c.4 */
&__clk_1_7, /* i2c.5 */
&__clk_1_24, /* uart 4 */
&__clk_1_25, /* uart 5 */
&__clk_1_26, /* uart 6 */
&__clk_1_27, /* uart 7 */
&__clk_1_28, /* uart 8 */
&__clk_1_29, /* uart 9 */
};
static void __clk_enable2(struct clk *clk)
{
__raw_writel(__raw_readl(MCFSDHC_CLK) | (1 << clk->slot), MCFSDHC_CLK);
}
static void __clk_disable2(struct clk *clk)
{
__raw_writel(__raw_readl(MCFSDHC_CLK) & ~(1 << clk->slot), MCFSDHC_CLK);
}
struct clk_ops clk_ops2 = {
.enable = __clk_enable2,
.disable = __clk_disable2,
};
static void __init m5441x_clk_init(void )
{
unsigned i;
for (i = 0; i < ARRAY_SIZE(enable_clks); ++i)
__clk_init_enabled(enable_clks[i]);
/* make sure these clocks are disabled */
for (i = 0; i < ARRAY_SIZE(disable_clks); ++i)
__clk_init_disabled(disable_clks[i]);
clkdev_add_table(m5411x_clk_lookup, ARRAY_SIZE(m5411x_clk_lookup));
}
static void __init m5441x_uarts_init(void )
{
__raw_writeb(0x0f, MCFGPIO_PAR_UART0);
__raw_writeb(0x00, MCFGPIO_PAR_UART1);
__raw_writeb(0x00, MCFGPIO_PAR_UART2);
}
static void __init m5441x_fec_init(void )
{
__raw_writeb(0x03, MCFGPIO_PAR_FEC);
}
void __init config_BSP(char *commandp, int size)
{
m5441x_clk_init();
mach_sched_init = hw_timer_init;
m5441x_uarts_init();
m5441x_fec_init();
}
Messung V0.5 C=94 H=87 G=90
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*© Formatika GbR, Deutschland