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authorTom Rini <trini@ti.com>2014-02-26 21:49:58 (GMT)
committerTom Rini <trini@ti.com>2014-02-26 21:49:58 (GMT)
commiteeb72e67619b98d2502fe634a3a5d9953de92ad0 (patch)
treeedea4b04062ec956158c163b13c9a31fcfdccde8 /arch/arm/cpu/armv7/bcm281xx/clk-bsc.c
parent715b56fe2b47e073e6f2425e0cedba0e92a4014d (diff)
parent1551df35f296f0a8df32f4f2054254f46e8be252 (diff)
downloadu-boot-eeb72e67619b98d2502fe634a3a5d9953de92ad0.tar.xz
Merge branch 'master' of git://git.denx.de/u-boot-arm
Conflicts: arch/arm/cpu/armv7/config.mk board/ti/am43xx/mux.c include/configs/am43xx_evm.h Signed-off-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'arch/arm/cpu/armv7/bcm281xx/clk-bsc.c')
-rw-r--r--arch/arm/cpu/armv7/bcm281xx/clk-bsc.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/bcm281xx/clk-bsc.c b/arch/arm/cpu/armv7/bcm281xx/clk-bsc.c
new file mode 100644
index 0000000..ba55d0a
--- /dev/null
+++ b/arch/arm/cpu/armv7/bcm281xx/clk-bsc.c
@@ -0,0 +1,52 @@
+/*
+ * 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 a BSC/I2C port */
+int clk_bsc_enable(void *base)
+{
+ int ret;
+ char *bscstr, *apbstr;
+
+ switch ((u32) base) {
+ case PMU_BSC_BASE_ADDR:
+ /* PMU clock is always enabled */
+ return 0;
+ case BSC1_BASE_ADDR:
+ bscstr = "bsc1_clk";
+ apbstr = "bsc1_apb_clk";
+ break;
+ case BSC2_BASE_ADDR:
+ bscstr = "bsc2_clk";
+ apbstr = "bsc2_apb_clk";
+ break;
+ case BSC3_BASE_ADDR:
+ bscstr = "bsc3_clk";
+ apbstr = "bsc3_apb_clk";
+ break;
+ default:
+ printf("%s: base 0x%p not found\n", __func__, base);
+ return -EINVAL;
+ }
+
+ /* Note that the bus clock must be enabled first */
+
+ ret = clk_get_and_enable(apbstr);
+ if (ret)
+ return ret;
+
+ ret = clk_get_and_enable(bscstr);
+ if (ret)
+ return ret;
+
+ return 0;
+}