u-boot/arch/m68k/cpu/mcf5445x/cpu_init.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

537 lines
14 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
*
* (C) Copyright 2000-2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* (C) Copyright 2004-2007, 2012 Freescale Semiconductor, Inc.
* TsiChung Liew (Tsi-Chung.Liew@freescale.com)
*/
#include <common.h>
#include <watchdog.h>
#include <asm/immap.h>
#include <asm/processor.h>
#include <asm/rtc.h>
#include <asm/io.h>
#include <linux/compiler.h>
#if defined(CONFIG_CMD_NET)
#include <config.h>
#include <net.h>
#include <asm/fec.h>
#endif
void init_fbcs(void)
{
fbcs_t *fbcs __maybe_unused = (fbcs_t *) MMAP_FBCS;
#if !defined(CONFIG_SERIAL_BOOT)
#if (defined(CONFIG_SYS_CS0_BASE) && defined(CONFIG_SYS_CS0_MASK) && defined(CONFIG_SYS_CS0_CTRL))
out_be32(&fbcs->csar0, CONFIG_SYS_CS0_BASE);
out_be32(&fbcs->cscr0, CONFIG_SYS_CS0_CTRL);
out_be32(&fbcs->csmr0, CONFIG_SYS_CS0_MASK);
#endif
#endif
#if (defined(CONFIG_SYS_CS1_BASE) && defined(CONFIG_SYS_CS1_MASK) && defined(CONFIG_SYS_CS1_CTRL))
/* Latch chipselect */
out_be32(&fbcs->csar1, CONFIG_SYS_CS1_BASE);
out_be32(&fbcs->cscr1, CONFIG_SYS_CS1_CTRL);
out_be32(&fbcs->csmr1, CONFIG_SYS_CS1_MASK);
#endif
#if (defined(CONFIG_SYS_CS2_BASE) && defined(CONFIG_SYS_CS2_MASK) && defined(CONFIG_SYS_CS2_CTRL))
out_be32(&fbcs->csar2, CONFIG_SYS_CS2_BASE);
out_be32(&fbcs->cscr2, CONFIG_SYS_CS2_CTRL);
out_be32(&fbcs->csmr2, CONFIG_SYS_CS2_MASK);
#endif
#if (defined(CONFIG_SYS_CS3_BASE) && defined(CONFIG_SYS_CS3_MASK) && defined(CONFIG_SYS_CS3_CTRL))
out_be32(&fbcs->csar3, CONFIG_SYS_CS3_BASE);
out_be32(&fbcs->cscr3, CONFIG_SYS_CS3_CTRL);
out_be32(&fbcs->csmr3, CONFIG_SYS_CS3_MASK);
#endif
#if (defined(CONFIG_SYS_CS4_BASE) && defined(CONFIG_SYS_CS4_MASK) && defined(CONFIG_SYS_CS4_CTRL))
out_be32(&fbcs->csar4, CONFIG_SYS_CS4_BASE);
out_be32(&fbcs->cscr4, CONFIG_SYS_CS4_CTRL);
out_be32(&fbcs->csmr4, CONFIG_SYS_CS4_MASK);
#endif
#if (defined(CONFIG_SYS_CS5_BASE) && defined(CONFIG_SYS_CS5_MASK) && defined(CONFIG_SYS_CS5_CTRL))
out_be32(&fbcs->csar5, CONFIG_SYS_CS5_BASE);
out_be32(&fbcs->cscr5, CONFIG_SYS_CS5_CTRL);
out_be32(&fbcs->csmr5, CONFIG_SYS_CS5_MASK);
#endif
}
/*
* Breath some life into the CPU...
*
* Set up the memory map,
* initialize a bunch of registers,
* initialize the UPM's
*/
void cpu_init_f(void)
{
gpio_t *gpio = (gpio_t *) MMAP_GPIO;
#ifdef CONFIG_MCF5441x
scm_t *scm = (scm_t *) MMAP_SCM;
pm_t *pm = (pm_t *) MMAP_PM;
/* Disable Switch */
*(unsigned long *)(MMAP_L2_SW0 + 0x00000024) = 0;
/* Disable core watchdog */
out_be16(&scm->cwcr, 0);
out_8(&gpio->par_fbctl,
GPIO_PAR_FBCTL_ALE_FB_ALE | GPIO_PAR_FBCTL_OE_FB_OE |
GPIO_PAR_FBCTL_FBCLK | GPIO_PAR_FBCTL_RW |
GPIO_PAR_FBCTL_TA_TA);
out_8(&gpio->par_be,
GPIO_PAR_BE_BE3_BE3 | GPIO_PAR_BE_BE2_BE2 |
GPIO_PAR_BE_BE1_BE1 | GPIO_PAR_BE_BE0_BE0);
/* eDMA */
out_8(&pm->pmcr0, 17);
/* INTR0 - INTR2 */
out_8(&pm->pmcr0, 18);
out_8(&pm->pmcr0, 19);
out_8(&pm->pmcr0, 20);
/* I2C */
out_8(&pm->pmcr0, 22);
out_8(&pm->pmcr1, 4);
out_8(&pm->pmcr1, 7);
/* DTMR0 - DTMR3*/
out_8(&pm->pmcr0, 28);
out_8(&pm->pmcr0, 29);
out_8(&pm->pmcr0, 30);
out_8(&pm->pmcr0, 31);
/* PIT0 - PIT3 */
out_8(&pm->pmcr0, 32);
out_8(&pm->pmcr0, 33);
out_8(&pm->pmcr0, 34);
out_8(&pm->pmcr0, 35);
/* Edge Port */
out_8(&pm->pmcr0, 36);
out_8(&pm->pmcr0, 37);
/* USB OTG */
out_8(&pm->pmcr0, 44);
/* USB Host */
out_8(&pm->pmcr0, 45);
/* ESDHC */
out_8(&pm->pmcr0, 51);
/* ENET0 - ENET1 */
out_8(&pm->pmcr0, 53);
out_8(&pm->pmcr0, 54);
/* NAND */
out_8(&pm->pmcr0, 63);
#ifdef CONFIG_SYS_I2C_0
out_8(&gpio->par_cani2c, 0xF0);
/* I2C0 pull up */
out_be16(&gpio->pcr_b, 0x003C);
/* I2C0 max speed */
out_8(&gpio->srcr_cani2c, 0x03);
#endif
#ifdef CONFIG_SYS_I2C_2
/* I2C2 */
out_8(&gpio->par_ssi0h, 0xA0);
/* I2C2, UART7 */
out_8(&gpio->par_ssi0h, 0xA8);
/* UART7 */
out_8(&gpio->par_ssi0l, 0x2);
/* UART8, UART9 */
out_8(&gpio->par_cani2c, 0xAA);
/* UART4, UART0 */
out_8(&gpio->par_uart0, 0xAF);
/* UART5, UART1 */
out_8(&gpio->par_uart1, 0xAF);
/* UART6, UART2 */
out_8(&gpio->par_uart2, 0xAF);
/* I2C2 pull up */
out_be16(&gpio->pcr_h, 0xF000);
#endif
#ifdef CONFIG_SYS_I2C_5
/* I2C5 */
out_8(&gpio->par_uart1, 0x0A);
/* I2C5 pull up */
out_be16(&gpio->pcr_e, 0x0003);
out_be16(&gpio->pcr_f, 0xC000);
#endif
/* Lowest slew rate for UART0,1,2 */
out_8(&gpio->srcr_uart, 0x00);
#endif /* CONFIG_MCF5441x */
#ifdef CONFIG_MCF5445x
scm1_t *scm1 = (scm1_t *) MMAP_SCM1;
out_be32(&scm1->mpr, 0x77777777);
out_be32(&scm1->pacra, 0);
out_be32(&scm1->pacrb, 0);
out_be32(&scm1->pacrc, 0);
out_be32(&scm1->pacrd, 0);
out_be32(&scm1->pacre, 0);
out_be32(&scm1->pacrf, 0);
out_be32(&scm1->pacrg, 0);
/* FlexBus */
out_8(&gpio->par_be,
GPIO_PAR_BE_BE3_BE3 | GPIO_PAR_BE_BE2_BE2 |
GPIO_PAR_BE_BE1_BE1 | GPIO_PAR_BE_BE0_BE0);
out_8(&gpio->par_fbctl,
GPIO_PAR_FBCTL_OE | GPIO_PAR_FBCTL_TA_TA |
GPIO_PAR_FBCTL_RW_RW | GPIO_PAR_FBCTL_TS_TS);
#ifdef CONFIG_SYS_FSL_I2C
out_be16(&gpio->par_feci2c,
GPIO_PAR_FECI2C_SCL_SCL | GPIO_PAR_FECI2C_SDA_SDA);
#endif
#endif /* CONFIG_MCF5445x */
/* FlexBus Chipselect */
init_fbcs();
#ifdef CONFIG_SYS_CS0_BASE
/*
* now the flash base address is no longer at 0 (Newer ColdFire family
* boot at address 0 instead of 0xFFnn_nnnn). The vector table must
* also move to the new location.
*/
if (CONFIG_SYS_CS0_BASE != 0)
setvbr(CONFIG_SYS_CS0_BASE);
#endif
icache_enable();
}
/*
* initialize higher level parts of CPU like timers
*/
int cpu_init_r(void)
{
#ifdef CONFIG_MCFRTC
rtc_t *rtc = (rtc_t *)(CONFIG_SYS_MCFRTC_BASE);
rtcex_t *rtcex = (rtcex_t *)&rtc->extended;
out_be32(&rtcex->gocu, (CONFIG_SYS_RTC_OSCILLATOR >> 16) & 0xffff);
out_be32(&rtcex->gocl, CONFIG_SYS_RTC_OSCILLATOR & 0xffff);
#endif
return (0);
}
void uart_port_conf(int port)
{
gpio_t *gpio = (gpio_t *) MMAP_GPIO;
#ifdef CONFIG_MCF5441x
pm_t *pm = (pm_t *) MMAP_PM;
#endif
/* Setup Ports: */
switch (port) {
#ifdef CONFIG_MCF5441x
case 0:
/* UART0 */
out_8(&pm->pmcr0, 24);
clrbits_8(&gpio->par_uart0,
~(GPIO_PAR_UART0_U0RXD_MASK | GPIO_PAR_UART0_U0TXD_MASK));
setbits_8(&gpio->par_uart0,
GPIO_PAR_UART0_U0RXD_U0RXD | GPIO_PAR_UART0_U0TXD_U0TXD);
break;
case 1:
/* UART1 */
out_8(&pm->pmcr0, 25);
clrbits_8(&gpio->par_uart1,
~(GPIO_PAR_UART1_U1RXD_MASK | GPIO_PAR_UART1_U1TXD_MASK));
setbits_8(&gpio->par_uart1,
GPIO_PAR_UART1_U1RXD_U1RXD | GPIO_PAR_UART1_U1TXD_U1TXD);
break;
case 2:
/* UART2 */
out_8(&pm->pmcr0, 26);
clrbits_8(&gpio->par_uart2,
~(GPIO_PAR_UART2_U2RXD_MASK | GPIO_PAR_UART2_U2TXD_MASK));
setbits_8(&gpio->par_uart2,
GPIO_PAR_UART2_U2RXD_U2RXD | GPIO_PAR_UART2_U2TXD_U2TXD);
break;
case 3:
/* UART3 */
out_8(&pm->pmcr0, 27);
clrbits_8(&gpio->par_dspi0,
~(GPIO_PAR_DSPI0_SIN_MASK | GPIO_PAR_DSPI0_SOUT_MASK));
setbits_8(&gpio->par_dspi0,
GPIO_PAR_DSPI0_SIN_U3RXD | GPIO_PAR_DSPI0_SOUT_U3TXD);
break;
case 4:
/* UART4 */
out_8(&pm->pmcr1, 24);
clrbits_8(&gpio->par_uart0,
~(GPIO_PAR_UART0_U0CTS_MASK | GPIO_PAR_UART0_U0RTS_MASK));
setbits_8(&gpio->par_uart0,
GPIO_PAR_UART0_U0CTS_U4TXD | GPIO_PAR_UART0_U0RTS_U4RXD);
break;
case 5:
/* UART5 */
out_8(&pm->pmcr1, 25);
clrbits_8(&gpio->par_uart1,
~(GPIO_PAR_UART1_U1CTS_MASK | GPIO_PAR_UART1_U1RTS_MASK));
setbits_8(&gpio->par_uart1,
GPIO_PAR_UART1_U1CTS_U5TXD | GPIO_PAR_UART1_U1RTS_U5RXD);
break;
case 6:
/* UART6 */
out_8(&pm->pmcr1, 26);
clrbits_8(&gpio->par_uart2,
~(GPIO_PAR_UART2_U2CTS_MASK | GPIO_PAR_UART2_U2RTS_MASK));
setbits_8(&gpio->par_uart2,
GPIO_PAR_UART2_U2CTS_U6TXD | GPIO_PAR_UART2_U2RTS_U6RXD);
break;
case 7:
/* UART7 */
out_8(&pm->pmcr1, 27);
clrbits_8(&gpio->par_ssi0h, ~GPIO_PAR_SSI0H_RXD_MASK);
clrbits_8(&gpio->par_ssi0l, ~GPIO_PAR_SSI0L_BCLK_MASK);
setbits_8(&gpio->par_ssi0h, GPIO_PAR_SSI0H_FS_U7TXD);
setbits_8(&gpio->par_ssi0l, GPIO_PAR_SSI0L_BCLK_U7RXD);
break;
case 8:
/* UART8 */
out_8(&pm->pmcr0, 28);
clrbits_8(&gpio->par_cani2c,
~(GPIO_PAR_CANI2C_I2C0SCL_MASK | GPIO_PAR_CANI2C_I2C0SDA_MASK));
setbits_8(&gpio->par_cani2c,
GPIO_PAR_CANI2C_I2C0SCL_U8TXD | GPIO_PAR_CANI2C_I2C0SDA_U8RXD);
break;
case 9:
/* UART9 */
out_8(&pm->pmcr1, 29);
clrbits_8(&gpio->par_cani2c,
~(GPIO_PAR_CANI2C_CAN1TX_MASK | GPIO_PAR_CANI2C_CAN1RX_MASK));
setbits_8(&gpio->par_cani2c,
GPIO_PAR_CANI2C_CAN1TX_U9TXD | GPIO_PAR_CANI2C_CAN1RX_U9RXD);
break;
#endif
#ifdef CONFIG_MCF5445x
case 0:
clrbits_8(&gpio->par_uart,
GPIO_PAR_UART_U0TXD_U0TXD | GPIO_PAR_UART_U0RXD_U0RXD);
setbits_8(&gpio->par_uart,
GPIO_PAR_UART_U0TXD_U0TXD | GPIO_PAR_UART_U0RXD_U0RXD);
break;
case 1:
#ifdef CONFIG_SYS_UART1_PRI_GPIO
clrbits_8(&gpio->par_uart,
GPIO_PAR_UART_U1TXD_U1TXD | GPIO_PAR_UART_U1RXD_U1RXD);
setbits_8(&gpio->par_uart,
GPIO_PAR_UART_U1TXD_U1TXD | GPIO_PAR_UART_U1RXD_U1RXD);
#elif defined(CONFIG_SYS_UART1_ALT1_GPIO)
clrbits_be16(&gpio->par_ssi,
~(GPIO_PAR_SSI_SRXD_UNMASK | GPIO_PAR_SSI_STXD_UNMASK));
setbits_be16(&gpio->par_ssi,
GPIO_PAR_SSI_SRXD_U1RXD | GPIO_PAR_SSI_STXD_U1TXD);
#endif
break;
case 2:
#if defined(CONFIG_SYS_UART2_ALT1_GPIO)
clrbits_8(&gpio->par_timer,
~(GPIO_PAR_TIMER_T3IN_UNMASK | GPIO_PAR_TIMER_T2IN_UNMASK));
setbits_8(&gpio->par_timer,
GPIO_PAR_TIMER_T3IN_U2RXD | GPIO_PAR_TIMER_T2IN_U2TXD);
#elif defined(CONFIG_SYS_UART2_ALT2_GPIO)
clrbits_8(&gpio->par_timer,
~(GPIO_PAR_FECI2C_SCL_UNMASK | GPIO_PAR_FECI2C_SDA_UNMASK));
setbits_8(&gpio->par_timer,
GPIO_PAR_FECI2C_SCL_U2TXD | GPIO_PAR_FECI2C_SDA_U2RXD);
#endif
break;
#endif /* CONFIG_MCF5445x */
}
}
#if defined(CONFIG_CMD_NET)
int fecpin_setclear(struct eth_device *dev, int setclear)
{
gpio_t *gpio = (gpio_t *) MMAP_GPIO;
#ifdef CONFIG_MCF5445x
struct fec_info_s *info = (struct fec_info_s *)dev->priv;
if (setclear) {
#ifdef CONFIG_SYS_FEC_NO_SHARED_PHY
if (info->iobase == CONFIG_SYS_FEC0_IOBASE)
setbits_be16(&gpio->par_feci2c,
GPIO_PAR_FECI2C_MDC0_MDC0 |
GPIO_PAR_FECI2C_MDIO0_MDIO0);
else
setbits_be16(&gpio->par_feci2c,
GPIO_PAR_FECI2C_MDC1_MDC1 |
GPIO_PAR_FECI2C_MDIO1_MDIO1);
#else
setbits_be16(&gpio->par_feci2c,
GPIO_PAR_FECI2C_MDC0_MDC0 | GPIO_PAR_FECI2C_MDIO0_MDIO0);
#endif
if (info->iobase == CONFIG_SYS_FEC0_IOBASE)
setbits_8(&gpio->par_fec, GPIO_PAR_FEC_FEC0_RMII_GPIO);
else
setbits_8(&gpio->par_fec, GPIO_PAR_FEC_FEC1_RMII_ATA);
} else {
clrbits_be16(&gpio->par_feci2c,
GPIO_PAR_FECI2C_MDC0_MDC0 | GPIO_PAR_FECI2C_MDIO0_MDIO0);
if (info->iobase == CONFIG_SYS_FEC0_IOBASE) {
#ifdef CONFIG_SYS_FEC_FULL_MII
setbits_8(&gpio->par_fec, GPIO_PAR_FEC_FEC0_MII);
#else
clrbits_8(&gpio->par_fec, ~GPIO_PAR_FEC_FEC0_UNMASK);
#endif
} else {
#ifdef CONFIG_SYS_FEC_FULL_MII
setbits_8(&gpio->par_fec, GPIO_PAR_FEC_FEC1_MII);
#else
clrbits_8(&gpio->par_fec, ~GPIO_PAR_FEC_FEC1_UNMASK);
#endif
}
}
#endif /* CONFIG_MCF5445x */
#ifdef CONFIG_MCF5441x
if (setclear) {
out_8(&gpio->par_fec, 0x03);
out_8(&gpio->srcr_fec, 0x0F);
clrsetbits_8(&gpio->par_simp0h, ~GPIO_PAR_SIMP0H_DAT_MASK,
GPIO_PAR_SIMP0H_DAT_GPIO);
clrsetbits_8(&gpio->pddr_g, ~GPIO_PDDR_G4_MASK,
GPIO_PDDR_G4_OUTPUT);
clrbits_8(&gpio->podr_g, ~GPIO_PODR_G4_MASK);
} else
clrbits_8(&gpio->par_fec, ~GPIO_PAR_FEC_FEC_MASK);
#endif
return 0;
}
#endif
#ifdef CONFIG_CF_DSPI
void cfspi_port_conf(void)
{
gpio_t *gpio = (gpio_t *) MMAP_GPIO;
#ifdef CONFIG_MCF5445x
out_8(&gpio->par_dspi,
GPIO_PAR_DSPI_SIN_SIN |
GPIO_PAR_DSPI_SOUT_SOUT |
GPIO_PAR_DSPI_SCK_SCK);
#endif
#ifdef CONFIG_MCF5441x
pm_t *pm = (pm_t *) MMAP_PM;
out_8(&gpio->par_dspi0,
GPIO_PAR_DSPI0_SIN_DSPI0SIN | GPIO_PAR_DSPI0_SOUT_DSPI0SOUT |
GPIO_PAR_DSPI0_SCK_DSPI0SCK);
out_8(&gpio->srcr_dspiow, 3);
/* DSPI0 */
out_8(&pm->pmcr0, 23);
#endif
}
int cfspi_claim_bus(uint bus, uint cs)
{
dspi_t *dspi = (dspi_t *) MMAP_DSPI;
gpio_t *gpio = (gpio_t *) MMAP_GPIO;
if ((in_be32(&dspi->sr) & DSPI_SR_TXRXS) != DSPI_SR_TXRXS)
return -1;
/* Clear FIFO and resume transfer */
clrbits_be32(&dspi->mcr, DSPI_MCR_CTXF | DSPI_MCR_CRXF);
#ifdef CONFIG_MCF5445x
switch (cs) {
case 0:
clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_PCS0);
setbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_PCS0);
break;
case 1:
clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS1_PCS1);
setbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS1_PCS1);
break;
case 2:
clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS2_PCS2);
setbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS2_PCS2);
break;
case 3:
clrbits_8(&gpio->par_dma, ~GPIO_PAR_DMA_DACK0_UNMASK);
setbits_8(&gpio->par_dma, GPIO_PAR_DMA_DACK0_PCS3);
break;
case 5:
clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS5_PCS5);
setbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS5_PCS5);
break;
}
#endif
#ifdef CONFIG_MCF5441x
switch (cs) {
case 0:
clrbits_8(&gpio->par_dspi0, ~GPIO_PAR_DSPI0_PCS0_MASK);
setbits_8(&gpio->par_dspi0, GPIO_PAR_DSPI0_PCS0_DSPI0PCS0);
break;
case 1:
clrbits_8(&gpio->par_dspiow, GPIO_PAR_DSPIOW_DSPI0PSC1);
setbits_8(&gpio->par_dspiow, GPIO_PAR_DSPIOW_DSPI0PSC1);
break;
}
#endif
return 0;
}
void cfspi_release_bus(uint bus, uint cs)
{
dspi_t *dspi = (dspi_t *) MMAP_DSPI;
gpio_t *gpio = (gpio_t *) MMAP_GPIO;
/* Clear FIFO */
clrbits_be32(&dspi->mcr, DSPI_MCR_CTXF | DSPI_MCR_CRXF);
#ifdef CONFIG_MCF5445x
switch (cs) {
case 0:
clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_PCS0);
break;
case 1:
clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS1_PCS1);
break;
case 2:
clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS2_PCS2);
break;
case 3:
clrbits_8(&gpio->par_dma, ~GPIO_PAR_DMA_DACK0_UNMASK);
break;
case 5:
clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS5_PCS5);
break;
}
#endif
#ifdef CONFIG_MCF5441x
if (cs == 1)
clrbits_8(&gpio->par_dspiow, GPIO_PAR_DSPIOW_DSPI0PSC1);
#endif
}
#endif