/*
- * Copyright (C) 2014 Stefan Roese <sr@denx.de>
+ * Copyright (C) 2014-2015 Stefan Roese <sr@denx.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <netdev.h>
+#include <ahci.h>
+#include <linux/mbus.h>
#include <asm/io.h>
+#include <asm/pl310.h>
#include <asm/arch/cpu.h>
#include <asm/arch/soc.h>
+#include <sdhci.h>
#define DDR_BASE_CS_OFF(n) (0x0000 + ((n) << 3))
#define DDR_SIZE_CS_OFF(n) (0x0004 + ((n) << 3))
static struct mbus_win windows[] = {
- /* PCIE MEM address space */
- { DEFADR_PCI_MEM, 256 << 20, CPU_TARGET_PCIE13, CPU_ATTR_PCIE_MEM },
-
- /* PCIE IO address space */
- { DEFADR_PCI_IO, 64 << 10, CPU_TARGET_PCIE13, CPU_ATTR_PCIE_IO },
-
/* SPI */
- { DEFADR_SPIF, 8 << 20, CPU_TARGET_DEVICEBUS_BOOTROM_SPI,
- CPU_ATTR_SPIFLASH },
+ { MBUS_SPI_BASE, MBUS_SPI_SIZE,
+ CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_SPIFLASH },
/* NOR */
- { DEFADR_BOOTROM, 8 << 20, CPU_TARGET_DEVICEBUS_BOOTROM_SPI,
- CPU_ATTR_BOOTROM },
+ { MBUS_BOOTROM_BASE, MBUS_BOOTROM_SIZE,
+ CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_BOOTROM },
};
void reset_cpu(unsigned long ignored)
;
}
+int mvebu_soc_family(void)
+{
+ u16 devid = (readl(MVEBU_REG_PCIE_DEVID) >> 16) & 0xffff;
+
+ if (devid == SOC_MV78460_ID)
+ return MVEBU_SOC_AXP;
+
+ if (devid == SOC_88F6810_ID || devid == SOC_88F6820_ID ||
+ devid == SOC_88F6828_ID)
+ return MVEBU_SOC_A38X;
+
+ return MVEBU_SOC_UNKNOWN;
+}
+
#if defined(CONFIG_DISPLAY_CPUINFO)
int print_cpuinfo(void)
{
case SOC_MV78460_ID:
puts("MV78460-");
break;
- default:
- puts("Unknown-");
+ case SOC_88F6810_ID:
+ puts("MV88F6810-");
break;
- }
-
- switch (revid) {
- case 1:
- puts("A0\n");
+ case SOC_88F6820_ID:
+ puts("MV88F6820-");
break;
- case 2:
- puts("B0\n");
+ case SOC_88F6828_ID:
+ puts("MV88F6828-");
break;
default:
- puts("??\n");
+ puts("Unknown-");
break;
}
+ if (mvebu_soc_family() == MVEBU_SOC_AXP) {
+ switch (revid) {
+ case 1:
+ puts("A0\n");
+ break;
+ case 2:
+ puts("B0\n");
+ break;
+ default:
+ printf("?? (%x)\n", revid);
+ break;
+ }
+ }
+
+ if (mvebu_soc_family() == MVEBU_SOC_A38X) {
+ switch (revid) {
+ case MV_88F68XX_Z1_ID:
+ puts("Z1\n");
+ break;
+ case MV_88F68XX_A0_ID:
+ puts("A0\n");
+ break;
+ default:
+ printf("?? (%x)\n", revid);
+ break;
+ }
+ }
+
return 0;
}
#endif /* CONFIG_DISPLAY_CPUINFO */
}
}
+void mmu_disable(void)
+{
+ asm volatile(
+ "mrc p15, 0, r0, c1, c0, 0\n"
+ "bic r0, #1\n"
+ "mcr p15, 0, r0, c1, c0, 0\n");
+}
+
#ifdef CONFIG_ARCH_CPU_INIT
+static void set_cbar(u32 addr)
+{
+ asm("mcr p15, 4, %0, c15, c0" : : "r" (addr));
+}
+
+#define MV_USB_PHY_BASE (MVEBU_AXP_USB_BASE + 0x800)
+#define MV_USB_PHY_PLL_REG(reg) (MV_USB_PHY_BASE | (((reg) & 0xF) << 2))
+#define MV_USB_X3_BASE(addr) (MVEBU_AXP_USB_BASE | BIT(11) | \
+ (((addr) & 0xF) << 6))
+#define MV_USB_X3_PHY_CHANNEL(dev, reg) (MV_USB_X3_BASE((dev) + 1) | \
+ (((reg) & 0xF) << 2))
+
+static void setup_usb_phys(void)
+{
+ int dev;
+
+ /*
+ * USB PLL init
+ */
+
+ /* Setup PLL frequency */
+ /* USB REF frequency = 25 MHz */
+ clrsetbits_le32(MV_USB_PHY_PLL_REG(1), 0x3ff, 0x605);
+
+ /* Power up PLL and PHY channel */
+ clrsetbits_le32(MV_USB_PHY_PLL_REG(2), 0, BIT(9));
+
+ /* Assert VCOCAL_START */
+ clrsetbits_le32(MV_USB_PHY_PLL_REG(1), 0, BIT(21));
+
+ mdelay(1);
+
+ /*
+ * USB PHY init (change from defaults) specific for 40nm (78X30 78X60)
+ */
+
+ for (dev = 0; dev < 3; dev++) {
+ clrsetbits_le32(MV_USB_X3_PHY_CHANNEL(dev, 3), 0, BIT(15));
+
+ /* Assert REG_RCAL_START in channel REG 1 */
+ clrsetbits_le32(MV_USB_X3_PHY_CHANNEL(dev, 1), 0, BIT(12));
+ udelay(40);
+ clrsetbits_le32(MV_USB_X3_PHY_CHANNEL(dev, 1), BIT(12), 0);
+ }
+}
+
int arch_cpu_init(void)
{
+#ifndef CONFIG_SPL_BUILD
+ if (mvebu_soc_family() == MVEBU_SOC_A38X) {
+ struct pl310_regs *const pl310 =
+ (struct pl310_regs *)CONFIG_SYS_PL310_BASE;
+
+ /*
+ * Only with disabled MMU its possible to switch the base
+ * register address on Armada 38x. Without this the SDRAM
+ * located at >= 0x4000.0000 is also not accessible, as its
+ * still locked to cache.
+ *
+ * So to fully release / unlock this area from cache, we need
+ * to first flush all caches, then disable the MMU and
+ * disable the L2 cache.
+ */
+ icache_disable();
+ dcache_disable();
+ mmu_disable();
+ clrbits_le32(&pl310->pl310_ctrl, L2X0_CTRL_EN);
+ }
+#endif
+
/* Linux expects the internal registers to be at 0xf1000000 */
writel(SOC_REGS_PHY_BASE, INTREG_BASE_ADDR_REG);
+ set_cbar(SOC_REGS_PHY_BASE + 0xC000);
/*
* We need to call mvebu_mbus_probe() before calling
*/
mvebu_mbus_probe(NULL, 0);
- /*
- * Now the SDRAM access windows can be reconfigured using
- * the information in the SDRAM scratch pad registers
- */
- update_sdram_window_sizes();
+ if (mvebu_soc_family() == MVEBU_SOC_AXP) {
+ /*
+ * Now the SDRAM access windows can be reconfigured using
+ * the information in the SDRAM scratch pad registers
+ */
+ update_sdram_window_sizes();
+ }
/*
* Finally the mbus windows can be configured with the
*/
mvebu_mbus_probe(windows, ARRAY_SIZE(windows));
+ if (mvebu_soc_family() == MVEBU_SOC_AXP) {
+ /* Enable GBE0, GBE1, LCD and NFC PUP */
+ clrsetbits_le32(ARMADA_XP_PUP_ENABLE, 0,
+ GE0_PUP_EN | GE1_PUP_EN | LCD_PUP_EN |
+ NAND_PUP_EN | SPI_PUP_EN);
+
+ /* Configure USB PLL and PHYs on AXP */
+ setup_usb_phys();
+ }
+
+ /* Enable NAND and NAND arbiter */
+ clrsetbits_le32(MVEBU_SOC_DEV_MUX_REG, 0, NAND_EN | NAND_ARBITER_EN);
+
+ /* Disable MBUS error propagation */
+ clrsetbits_le32(SOC_COHERENCY_FABRIC_CTRL_REG, MBUS_ERR_PROP_EN, 0);
+
return 0;
}
#endif /* CONFIG_ARCH_CPU_INIT */
+u32 mvebu_get_nand_clock(void)
+{
+ return CONFIG_SYS_MVEBU_PLL_CLOCK /
+ ((readl(MVEBU_CORE_DIV_CLK_CTRL(1)) &
+ NAND_ECC_DIVCKL_RATIO_MASK) >> NAND_ECC_DIVCKL_RATIO_OFFS);
+}
+
/*
* SOC specific misc init
*/
#ifdef CONFIG_MVNETA
int cpu_eth_init(bd_t *bis)
{
- mvneta_initialize(bis, MVEBU_EGIGA0_BASE, 0, CONFIG_PHY_BASE_ADDR + 0);
- mvneta_initialize(bis, MVEBU_EGIGA1_BASE, 1, CONFIG_PHY_BASE_ADDR + 1);
- mvneta_initialize(bis, MVEBU_EGIGA2_BASE, 2, CONFIG_PHY_BASE_ADDR + 2);
- mvneta_initialize(bis, MVEBU_EGIGA3_BASE, 3, CONFIG_PHY_BASE_ADDR + 3);
+ u32 enet_base[] = { MVEBU_EGIGA0_BASE, MVEBU_EGIGA1_BASE,
+ MVEBU_EGIGA2_BASE, MVEBU_EGIGA3_BASE };
+ u8 phy_addr[] = CONFIG_PHY_ADDR;
+ int i;
+
+ /*
+ * Only Armada XP supports all 4 ethernet interfaces. A38x has
+ * slightly different base addresses for its 2-3 interfaces.
+ */
+ if (mvebu_soc_family() != MVEBU_SOC_AXP) {
+ enet_base[1] = MVEBU_EGIGA2_BASE;
+ enet_base[2] = MVEBU_EGIGA3_BASE;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(phy_addr); i++)
+ mvneta_initialize(bis, enet_base[i], i, phy_addr[i]);
+
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_MV_SDHCI
+int board_mmc_init(bd_t *bis)
+{
+ mv_sdh_init(MVEBU_SDIO_BASE, 0, 0,
+ SDHCI_QUIRK_32BIT_DMA_ADDR | SDHCI_QUIRK_WAIT_SEND_CMD);
return 0;
}
#endif
+#ifdef CONFIG_SCSI_AHCI_PLAT
+#define AHCI_VENDOR_SPECIFIC_0_ADDR 0xa0
+#define AHCI_VENDOR_SPECIFIC_0_DATA 0xa4
+
+#define AHCI_WINDOW_CTRL(win) (0x60 + ((win) << 4))
+#define AHCI_WINDOW_BASE(win) (0x64 + ((win) << 4))
+#define AHCI_WINDOW_SIZE(win) (0x68 + ((win) << 4))
+
+static void ahci_mvebu_mbus_config(void __iomem *base)
+{
+ const struct mbus_dram_target_info *dram;
+ int i;
+
+ dram = mvebu_mbus_dram_info();
+
+ for (i = 0; i < 4; i++) {
+ writel(0, base + AHCI_WINDOW_CTRL(i));
+ writel(0, base + AHCI_WINDOW_BASE(i));
+ writel(0, base + AHCI_WINDOW_SIZE(i));
+ }
+
+ for (i = 0; i < dram->num_cs; i++) {
+ const struct mbus_dram_window *cs = dram->cs + i;
+
+ writel((cs->mbus_attr << 8) |
+ (dram->mbus_dram_target_id << 4) | 1,
+ base + AHCI_WINDOW_CTRL(i));
+ writel(cs->base >> 16, base + AHCI_WINDOW_BASE(i));
+ writel(((cs->size - 1) & 0xffff0000),
+ base + AHCI_WINDOW_SIZE(i));
+ }
+}
+
+static void ahci_mvebu_regret_option(void __iomem *base)
+{
+ /*
+ * Enable the regret bit to allow the SATA unit to regret a
+ * request that didn't receive an acknowlegde and avoid a
+ * deadlock
+ */
+ writel(0x4, base + AHCI_VENDOR_SPECIFIC_0_ADDR);
+ writel(0x80, base + AHCI_VENDOR_SPECIFIC_0_DATA);
+}
+
+void scsi_init(void)
+{
+ printf("MVEBU SATA INIT\n");
+ ahci_mvebu_mbus_config((void __iomem *)MVEBU_SATA0_BASE);
+ ahci_mvebu_regret_option((void __iomem *)MVEBU_SATA0_BASE);
+ ahci_init((void __iomem *)MVEBU_SATA0_BASE);
+}
+#endif
+
#ifndef CONFIG_SYS_DCACHE_OFF
void enable_caches(void)
{
+ struct pl310_regs *const pl310 =
+ (struct pl310_regs *)CONFIG_SYS_PL310_BASE;
+
+ /* First disable L2 cache - may still be enable from BootROM */
+ if (mvebu_soc_family() == MVEBU_SOC_A38X)
+ clrbits_le32(&pl310->pl310_ctrl, L2X0_CTRL_EN);
+
+ /* Avoid problem with e.g. neta ethernet driver */
+ invalidate_dcache_all();
+
/* Enable D-cache. I-cache is already enabled in start.S */
dcache_enable();
}
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