X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fu-boot%2Farch%2Farm%2Fcpu%2Farmv7%2Fbcm281xx%2Fclk-sdio.c;fp=qemu%2Froms%2Fu-boot%2Farch%2Farm%2Fcpu%2Farmv7%2Fbcm281xx%2Fclk-sdio.c;h=49badcbaa71486c502cea8157c72cd9def2c5e57;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

diff --git a/qemu/roms/u-boot/arch/arm/cpu/armv7/bcm281xx/clk-sdio.c b/qemu/roms/u-boot/arch/arm/cpu/armv7/bcm281xx/clk-sdio.c
new file mode 100644
index 000000000..49badcbaa
--- /dev/null
+++ b/qemu/roms/u-boot/arch/arm/cpu/armv7/bcm281xx/clk-sdio.c
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2013 Broadcom Corporation.
+ *
+ * SPDX-License-Identifier:      GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/errno.h>
+#include <asm/arch/sysmap.h>
+#include <asm/kona-common/clk.h>
+#include "clk-core.h"
+
+/* Enable appropriate clocks for an SDIO port */
+int clk_sdio_enable(void *base, u32 rate, u32 *actual_ratep)
+{
+	int ret;
+	struct clk *c;
+
+	char *clkstr;
+	char *slpstr;
+	char *ahbstr;
+
+	switch ((u32) base) {
+	case CONFIG_SYS_SDIO_BASE0:
+		clkstr = CONFIG_SYS_SDIO0 "_clk";
+		ahbstr = CONFIG_SYS_SDIO0 "_ahb_clk";
+		slpstr = CONFIG_SYS_SDIO0 "_sleep_clk";
+		break;
+	case CONFIG_SYS_SDIO_BASE1:
+		clkstr = CONFIG_SYS_SDIO1 "_clk";
+		ahbstr = CONFIG_SYS_SDIO1 "_ahb_clk";
+		slpstr = CONFIG_SYS_SDIO1 "_sleep_clk";
+		break;
+	case CONFIG_SYS_SDIO_BASE2:
+		clkstr = CONFIG_SYS_SDIO2 "_clk";
+		ahbstr = CONFIG_SYS_SDIO2 "_ahb_clk";
+		slpstr = CONFIG_SYS_SDIO2 "_sleep_clk";
+		break;
+	case CONFIG_SYS_SDIO_BASE3:
+		clkstr = CONFIG_SYS_SDIO3 "_clk";
+		ahbstr = CONFIG_SYS_SDIO3 "_ahb_clk";
+		slpstr = CONFIG_SYS_SDIO3 "_sleep_clk";
+		break;
+	default:
+		printf("%s: base 0x%p not found\n", __func__, base);
+		return -EINVAL;
+	}
+
+	ret = clk_get_and_enable(ahbstr);
+	if (ret)
+		return ret;
+
+	ret = clk_get_and_enable(slpstr);
+	if (ret)
+		return ret;
+
+	c = clk_get(clkstr);
+	if (c) {
+		ret = clk_set_rate(c, rate);
+		if (ret)
+			return ret;
+
+		ret = clk_enable(c);
+		if (ret)
+			return ret;
+	} else {
+		printf("%s: Couldn't find %s\n", __func__, clkstr);
+		return -EINVAL;
+	}
+	*actual_ratep = rate;
+	return 0;
+}