diff options
author | 2015-08-28 09:58:54 +0800 | |
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committer | 2015-09-01 12:44:00 +0800 | |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/u-boot/arch/m68k/cpu/mcf5227x/cpu_init.c | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/u-boot/arch/m68k/cpu/mcf5227x/cpu_init.c')
-rw-r--r-- | qemu/roms/u-boot/arch/m68k/cpu/mcf5227x/cpu_init.c | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/arch/m68k/cpu/mcf5227x/cpu_init.c b/qemu/roms/u-boot/arch/m68k/cpu/mcf5227x/cpu_init.c new file mode 100644 index 000000000..91b5fadc8 --- /dev/null +++ b/qemu/roms/u-boot/arch/m68k/cpu/mcf5227x/cpu_init.c @@ -0,0 +1,194 @@ +/* + * + * (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) + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <watchdog.h> + +#include <asm/immap.h> +#include <asm/io.h> +#include <asm/rtc.h> +#include <linux/compiler.h> + +/* + * 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; + fbcs_t *fbcs __maybe_unused = (fbcs_t *) MMAP_FBCS; + +#if !defined(CONFIG_CF_SBF) + scm1_t *scm1 = (scm1_t *) MMAP_SCM1; + pll_t *pll = (pll_t *)MMAP_PLL; + + /* Workaround, must place before fbcs */ + out_be32(&pll->psr, 0x12); + + 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); + out_be32(&scm1->pacri, 0); + +#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 /* CONFIG_CF_SBF */ + +#if (defined(CONFIG_SYS_CS1_BASE) && defined(CONFIG_SYS_CS1_MASK) \ + && defined(CONFIG_SYS_CS1_CTRL)) + 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 + +#ifdef CONFIG_SYS_I2C_FSL + out_8(&gpio->par_i2c, GPIO_PAR_I2C_SCL_SCL | GPIO_PAR_I2C_SDA_SDA); +#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; + + /* Setup Ports: */ + switch (port) { + case 0: + clrbits_be16(&gpio->par_uart, + ~(GPIO_PAR_UART_U0TXD_UNMASK & GPIO_PAR_UART_U0RXD_UNMASK)); + setbits_be16(&gpio->par_uart, + GPIO_PAR_UART_U0TXD_U0TXD | GPIO_PAR_UART_U0RXD_U0RXD); + break; + case 1: + clrbits_be16(&gpio->par_uart, + ~(GPIO_PAR_UART_U1TXD_UNMASK & GPIO_PAR_UART_U1RXD_UNMASK)); + setbits_be16(&gpio->par_uart, + GPIO_PAR_UART_U1TXD_U1TXD | GPIO_PAR_UART_U1RXD_U1RXD); + break; + case 2: + clrbits_8(&gpio->par_dspi, + ~(GPIO_PAR_DSPI_SIN_UNMASK & GPIO_PAR_DSPI_SOUT_UNMASK)); + out_8(&gpio->par_dspi, + GPIO_PAR_DSPI_SIN_U2RXD | GPIO_PAR_DSPI_SOUT_U2TXD); + break; + } +} + +#ifdef CONFIG_CF_DSPI +void cfspi_port_conf(void) +{ + gpio_t *gpio = (gpio_t *) MMAP_GPIO; + + out_8(&gpio->par_dspi, + GPIO_PAR_DSPI_SIN_SIN | GPIO_PAR_DSPI_SOUT_SOUT | + GPIO_PAR_DSPI_SCK_SCK); +} + +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); + + switch (cs) { + case 0: + clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_UNMASK); + setbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_PCS0); + break; + case 2: + clrbits_8(&gpio->par_timer, ~GPIO_PAR_TIMER_T2IN_UNMASK); + setbits_8(&gpio->par_timer, GPIO_PAR_TIMER_T2IN_DSPIPCS2); + break; + } + + 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); + + switch (cs) { + case 0: + clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_PCS0); + break; + case 2: + clrbits_8(&gpio->par_timer, ~GPIO_PAR_TIMER_T2IN_UNMASK); + break; + } +} +#endif |