--- /dev/null
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * David Mueller, ELSOFT AG, <d.mueller@elsoft.ch>
+ *
+ * (C) Copyright 2003
+ * Texas Instruments, <www.ti.com>
+ * Kshitij Gupta <Kshitij@ti.com>
+ *
+ * (C) Copyright 2004
+ * ARM Ltd.
+ * Philippe Robin, <philippe.robin@arm.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+#include <common.h>
+#include <malloc.h>
+#include <errno.h>
+#include <netdev.h>
+#include <asm/io.h>
+#include <asm/arch/systimer.h>
+#include <asm/arch/sysctrl.h>
+#include <asm/arch/wdt.h>
+#include "../drivers/mmc/arm_pl180_mmci.h"
+
+static struct systimer *systimer_base = (struct systimer *)V2M_TIMER01;
+static struct sysctrl *sysctrl_base = (struct sysctrl *)SCTL_BASE;
+
+static void flash__init(void);
+static void vexpress_timer_init(void);
+DECLARE_GLOBAL_DATA_PTR;
+
+#if defined(CONFIG_SHOW_BOOT_PROGRESS)
+void show_boot_progress(int progress)
+{
+ printf("Boot reached stage %d\n", progress);
+}
+#endif
+
+static inline void delay(ulong loops)
+{
+ __asm__ volatile ("1:\n"
+ "subs %0, %1, #1\n"
+ "bne 1b" : "=r" (loops) : "0" (loops));
+}
+
+int board_init(void)
+{
+ gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
+ gd->bd->bi_arch_number = MACH_TYPE_VEXPRESS;
+ gd->flags = 0;
+
+ icache_enable();
+ flash__init();
+ vexpress_timer_init();
+
+ return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+ int rc = 0;
+#ifdef CONFIG_SMC911X
+ rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
+#endif
+ return rc;
+}
+
+int cpu_mmc_init(bd_t *bis)
+{
+ int rc = 0;
+ (void) bis;
+#ifdef CONFIG_ARM_PL180_MMCI
+ struct pl180_mmc_host *host;
+
+ host = malloc(sizeof(struct pl180_mmc_host));
+ if (!host)
+ return -ENOMEM;
+ memset(host, 0, sizeof(*host));
+
+ strcpy(host->name, "MMC");
+ host->base = (struct sdi_registers *)CONFIG_ARM_PL180_MMCI_BASE;
+ host->pwr_init = INIT_PWR;
+ host->clkdiv_init = SDI_CLKCR_CLKDIV_INIT_V1 | SDI_CLKCR_CLKEN;
+ host->voltages = VOLTAGE_WINDOW_MMC;
+ host->caps = 0;
+ host->clock_in = ARM_MCLK;
+ host->clock_min = ARM_MCLK / (2 * (SDI_CLKCR_CLKDIV_INIT_V1 + 1));
+ host->clock_max = CONFIG_ARM_PL180_MMCI_CLOCK_FREQ;
+ rc = arm_pl180_mmci_init(host);
+#endif
+ return rc;
+}
+
+static void flash__init(void)
+{
+ /* Setup the sytem control register to allow writing to flash */
+ writel(readl(&sysctrl_base->scflashctrl) | VEXPRESS_FLASHPROG_FLVPPEN,
+ &sysctrl_base->scflashctrl);
+}
+
+int dram_init(void)
+{
+ gd->ram_size =
+ get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, PHYS_SDRAM_1_SIZE);
+ return 0;
+}
+
+void dram_init_banksize(void)
+{
+ gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+ gd->bd->bi_dram[0].size =
+ get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
+ gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
+ gd->bd->bi_dram[1].size =
+ get_ram_size((long *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
+}
+
+/*
+ * Start timer:
+ * Setup a 32 bit timer, running at 1KHz
+ * Versatile Express Motherboard provides 1 MHz timer
+ */
+static void vexpress_timer_init(void)
+{
+ /*
+ * Set clock frequency in system controller:
+ * VEXPRESS_REFCLK is 32KHz
+ * VEXPRESS_TIMCLK is 1MHz
+ */
+ writel(SP810_TIMER0_ENSEL | SP810_TIMER1_ENSEL |
+ SP810_TIMER2_ENSEL | SP810_TIMER3_ENSEL |
+ readl(&sysctrl_base->scctrl), &sysctrl_base->scctrl);
+
+ /*
+ * Set Timer0 to be:
+ * Enabled, free running, no interrupt, 32-bit, wrapping
+ */
+ writel(SYSTIMER_RELOAD, &systimer_base->timer0load);
+ writel(SYSTIMER_RELOAD, &systimer_base->timer0value);
+ writel(SYSTIMER_EN | SYSTIMER_32BIT |
+ readl(&systimer_base->timer0control),
+ &systimer_base->timer0control);
+}
+
+int v2m_cfg_write(u32 devfn, u32 data)
+{
+ /* Configuration interface broken? */
+ u32 val;
+
+ devfn |= SYS_CFG_START | SYS_CFG_WRITE;
+
+ val = readl(V2M_SYS_CFGSTAT);
+ writel(val & ~SYS_CFG_COMPLETE, V2M_SYS_CFGSTAT);
+
+ writel(data, V2M_SYS_CFGDATA);
+ writel(devfn, V2M_SYS_CFGCTRL);
+
+ do {
+ val = readl(V2M_SYS_CFGSTAT);
+ } while (val == 0);
+
+ return !!(val & SYS_CFG_ERR);
+}
+
+/* Use the ARM Watchdog System to cause reset */
+void reset_cpu(ulong addr)
+{
+ if (v2m_cfg_write(SYS_CFG_REBOOT | SYS_CFG_SITE_MB, 0))
+ printf("Unable to reboot\n");
+}
+
+void lowlevel_init(void)
+{
+}
+
+ulong get_board_rev(void){
+ return readl((u32 *)SYS_ID);
+}
+
+#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV7_VIRT)
+/* Setting the address at which secondary cores start from.
+ * Versatile Express uses one address for all cores, so ignore corenr
+ */
+void smp_set_core_boot_addr(unsigned long addr, int corenr)
+{
+ /* The SYSFLAGS register on VExpress needs to be cleared first
+ * by writing to the next address, since any writes to the address
+ * at offset 0 will only be ORed in
+ */
+ writel(~0, CONFIG_SYSFLAGS_ADDR + 4);
+ writel(addr, CONFIG_SYSFLAGS_ADDR);
+}
+#endif
Code Review / kvmfornfv.git / blobdiff