mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
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>
194 lines
4.8 KiB
C
194 lines
4.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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*
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* (C) Copyright 2000-2003
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* (C) Copyright 2004-2007, 2012 Freescale Semiconductor, Inc.
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* TsiChung Liew (Tsi-Chung.Liew@freescale.com)
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*/
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#include <common.h>
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#include <watchdog.h>
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#include <asm/immap.h>
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#include <asm/io.h>
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#include <asm/rtc.h>
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#include <linux/compiler.h>
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/*
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* Breath some life into the CPU...
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*
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* Set up the memory map,
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* initialize a bunch of registers,
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* initialize the UPM's
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*/
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void cpu_init_f(void)
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{
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gpio_t *gpio = (gpio_t *) MMAP_GPIO;
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fbcs_t *fbcs __maybe_unused = (fbcs_t *) MMAP_FBCS;
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#if !defined(CONFIG_CF_SBF)
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scm1_t *scm1 = (scm1_t *) MMAP_SCM1;
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pll_t *pll = (pll_t *)MMAP_PLL;
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/* Workaround, must place before fbcs */
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out_be32(&pll->psr, 0x12);
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out_be32(&scm1->mpr, 0x77777777);
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out_be32(&scm1->pacra, 0);
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out_be32(&scm1->pacrb, 0);
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out_be32(&scm1->pacrc, 0);
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out_be32(&scm1->pacrd, 0);
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out_be32(&scm1->pacre, 0);
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out_be32(&scm1->pacrf, 0);
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out_be32(&scm1->pacrg, 0);
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out_be32(&scm1->pacri, 0);
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#if (defined(CONFIG_SYS_CS0_BASE) && defined(CONFIG_SYS_CS0_MASK) \
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&& defined(CONFIG_SYS_CS0_CTRL))
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out_be32(&fbcs->csar0, CONFIG_SYS_CS0_BASE);
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out_be32(&fbcs->cscr0, CONFIG_SYS_CS0_CTRL);
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out_be32(&fbcs->csmr0, CONFIG_SYS_CS0_MASK);
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#endif
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#endif /* CONFIG_CF_SBF */
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#if (defined(CONFIG_SYS_CS1_BASE) && defined(CONFIG_SYS_CS1_MASK) \
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&& defined(CONFIG_SYS_CS1_CTRL))
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out_be32(&fbcs->csar1, CONFIG_SYS_CS1_BASE);
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out_be32(&fbcs->cscr1, CONFIG_SYS_CS1_CTRL);
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out_be32(&fbcs->csmr1, CONFIG_SYS_CS1_MASK);
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#endif
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#if (defined(CONFIG_SYS_CS2_BASE) && defined(CONFIG_SYS_CS2_MASK) \
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&& defined(CONFIG_SYS_CS2_CTRL))
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out_be32(&fbcs->csar2, CONFIG_SYS_CS2_BASE);
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out_be32(&fbcs->cscr2, CONFIG_SYS_CS2_CTRL);
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out_be32(&fbcs->csmr2, CONFIG_SYS_CS2_MASK);
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#endif
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#if (defined(CONFIG_SYS_CS3_BASE) && defined(CONFIG_SYS_CS3_MASK) \
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&& defined(CONFIG_SYS_CS3_CTRL))
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out_be32(&fbcs->csar3, CONFIG_SYS_CS3_BASE);
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out_be32(&fbcs->cscr3, CONFIG_SYS_CS3_CTRL);
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out_be32(&fbcs->csmr3, CONFIG_SYS_CS3_MASK);
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#endif
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#if (defined(CONFIG_SYS_CS4_BASE) && defined(CONFIG_SYS_CS4_MASK) \
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&& defined(CONFIG_SYS_CS4_CTRL))
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out_be32(&fbcs->csar4, CONFIG_SYS_CS4_BASE);
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out_be32(&fbcs->cscr4, CONFIG_SYS_CS4_CTRL);
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out_be32(&fbcs->csmr4, CONFIG_SYS_CS4_MASK);
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#endif
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#if (defined(CONFIG_SYS_CS5_BASE) && defined(CONFIG_SYS_CS5_MASK) \
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&& defined(CONFIG_SYS_CS5_CTRL))
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out_be32(&fbcs->csar5, CONFIG_SYS_CS5_BASE);
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out_be32(&fbcs->cscr5, CONFIG_SYS_CS5_CTRL);
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out_be32(&fbcs->csmr5, CONFIG_SYS_CS5_MASK);
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#endif
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#ifdef CONFIG_SYS_I2C_FSL
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out_8(&gpio->par_i2c, GPIO_PAR_I2C_SCL_SCL | GPIO_PAR_I2C_SDA_SDA);
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#endif
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icache_enable();
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}
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/*
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* initialize higher level parts of CPU like timers
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*/
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int cpu_init_r(void)
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{
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#ifdef CONFIG_MCFRTC
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rtc_t *rtc = (rtc_t *)(CONFIG_SYS_MCFRTC_BASE);
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rtcex_t *rtcex = (rtcex_t *)&rtc->extended;
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out_be32(&rtcex->gocu, (CONFIG_SYS_RTC_OSCILLATOR >> 16) & 0xffff);
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out_be32(&rtcex->gocl, CONFIG_SYS_RTC_OSCILLATOR & 0xffff);
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#endif
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return (0);
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}
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void uart_port_conf(int port)
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{
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gpio_t *gpio = (gpio_t *) MMAP_GPIO;
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/* Setup Ports: */
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switch (port) {
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case 0:
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clrbits_be16(&gpio->par_uart,
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~(GPIO_PAR_UART_U0TXD_UNMASK & GPIO_PAR_UART_U0RXD_UNMASK));
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setbits_be16(&gpio->par_uart,
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GPIO_PAR_UART_U0TXD_U0TXD | GPIO_PAR_UART_U0RXD_U0RXD);
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break;
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case 1:
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clrbits_be16(&gpio->par_uart,
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~(GPIO_PAR_UART_U1TXD_UNMASK & GPIO_PAR_UART_U1RXD_UNMASK));
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setbits_be16(&gpio->par_uart,
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GPIO_PAR_UART_U1TXD_U1TXD | GPIO_PAR_UART_U1RXD_U1RXD);
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break;
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case 2:
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clrbits_8(&gpio->par_dspi,
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~(GPIO_PAR_DSPI_SIN_UNMASK & GPIO_PAR_DSPI_SOUT_UNMASK));
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out_8(&gpio->par_dspi,
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GPIO_PAR_DSPI_SIN_U2RXD | GPIO_PAR_DSPI_SOUT_U2TXD);
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break;
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}
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}
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#ifdef CONFIG_CF_DSPI
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void cfspi_port_conf(void)
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{
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gpio_t *gpio = (gpio_t *) MMAP_GPIO;
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out_8(&gpio->par_dspi,
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GPIO_PAR_DSPI_SIN_SIN | GPIO_PAR_DSPI_SOUT_SOUT |
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GPIO_PAR_DSPI_SCK_SCK);
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}
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int cfspi_claim_bus(uint bus, uint cs)
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{
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dspi_t *dspi = (dspi_t *) MMAP_DSPI;
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gpio_t *gpio = (gpio_t *) MMAP_GPIO;
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if ((in_be32(&dspi->sr) & DSPI_SR_TXRXS) != DSPI_SR_TXRXS)
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return -1;
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/* Clear FIFO and resume transfer */
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clrbits_be32(&dspi->mcr, DSPI_MCR_CTXF | DSPI_MCR_CRXF);
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switch (cs) {
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case 0:
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clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_UNMASK);
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setbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_PCS0);
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break;
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case 2:
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clrbits_8(&gpio->par_timer, ~GPIO_PAR_TIMER_T2IN_UNMASK);
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setbits_8(&gpio->par_timer, GPIO_PAR_TIMER_T2IN_DSPIPCS2);
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break;
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}
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return 0;
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}
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void cfspi_release_bus(uint bus, uint cs)
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{
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dspi_t *dspi = (dspi_t *) MMAP_DSPI;
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gpio_t *gpio = (gpio_t *) MMAP_GPIO;
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/* Clear FIFO */
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clrbits_be32(&dspi->mcr, DSPI_MCR_CTXF | DSPI_MCR_CRXF);
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switch (cs) {
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case 0:
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clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_PCS0);
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break;
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case 2:
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clrbits_8(&gpio->par_timer, ~GPIO_PAR_TIMER_T2IN_UNMASK);
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break;
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}
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}
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#endif
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