X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fu-boot%2Farch%2Farm%2Fcpu%2Farm926ejs%2Fpantheon%2Fcpu.c;fp=qemu%2Froms%2Fu-boot%2Farch%2Farm%2Fcpu%2Farm926ejs%2Fpantheon%2Fcpu.c;h=4e2a177c0d156fa00ee172aee3e04dea91a6ee54;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

diff --git a/qemu/roms/u-boot/arch/arm/cpu/arm926ejs/pantheon/cpu.c b/qemu/roms/u-boot/arch/arm/cpu/arm926ejs/pantheon/cpu.c
new file mode 100644
index 000000000..4e2a177c0
--- /dev/null
+++ b/qemu/roms/u-boot/arch/arm/cpu/arm926ejs/pantheon/cpu.c
@@ -0,0 +1,85 @@
+/*
+ * (C) Copyright 2011
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Lei Wen <leiwen@marvell.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/pantheon.h>
+
+#define UARTCLK14745KHZ	(APBC_APBCLK | APBC_FNCLK | APBC_FNCLKSEL(1))
+#define SET_MRVL_ID	(1<<8)
+#define L2C_RAM_SEL	(1<<4)
+
+int arch_cpu_init(void)
+{
+	u32 val;
+	struct panthcpu_registers *cpuregs =
+		(struct panthcpu_registers*) PANTHEON_CPU_BASE;
+
+	struct panthapb_registers *apbclkres =
+		(struct panthapb_registers*) PANTHEON_APBC_BASE;
+
+	struct panthmpmu_registers *mpmu =
+		(struct panthmpmu_registers*) PANTHEON_MPMU_BASE;
+
+	struct panthapmu_registers *apmu =
+		(struct panthapmu_registers *) PANTHEON_APMU_BASE;
+
+	/* set SEL_MRVL_ID bit in PANTHEON_CPU_CONF register */
+	val = readl(&cpuregs->cpu_conf);
+	val = val | SET_MRVL_ID;
+	writel(val, &cpuregs->cpu_conf);
+
+	/* Turn on clock gating (PMUM_CCGR) */
+	writel(0xFFFFFFFF, &mpmu->ccgr);
+
+	/* Turn on clock gating (PMUM_ACGR) */
+	writel(0xFFFFFFFF, &mpmu->acgr);
+
+	/* Turn on uart2 clock */
+	writel(UARTCLK14745KHZ, &apbclkres->uart0);
+
+	/* Enable GPIO clock */
+	writel(APBC_APBCLK, &apbclkres->gpio);
+
+#ifdef CONFIG_I2C_MV
+	/* Enable I2C clock */
+	writel(APBC_RST | APBC_FNCLK | APBC_APBCLK, &apbclkres->twsi);
+	writel(APBC_FNCLK | APBC_APBCLK, &apbclkres->twsi);
+#endif
+
+#ifdef CONFIG_MV_SDHCI
+	/* Enable mmc clock */
+	writel(APMU_PERI_CLK | APMU_AXI_CLK | APMU_PERI_RST | APMU_AXI_RST,
+			&apmu->sd1);
+	writel(APMU_PERI_CLK | APMU_AXI_CLK | APMU_PERI_RST | APMU_AXI_RST,
+			&apmu->sd3);
+#endif
+
+	icache_enable();
+
+	return 0;
+}
+
+#if defined(CONFIG_DISPLAY_CPUINFO)
+int print_cpuinfo(void)
+{
+	u32 id;
+	struct panthcpu_registers *cpuregs =
+		(struct panthcpu_registers*) PANTHEON_CPU_BASE;
+
+	id = readl(&cpuregs->chip_id);
+	printf("SoC:   PANTHEON 88AP%X-%X\n", (id & 0xFFF), (id >> 0x10));
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_I2C_MV
+void i2c_clk_enable(void)
+{
+}
+#endif