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authorEric Anholt <eric@anholt.net>2015-09-28 14:22:02 -0700
committerStephen Boyd <sboyd@codeaurora.org>2015-10-01 17:12:03 -0700
commit4f61d8e220c110de90a02736ceb55e1e398d6be7 (patch)
tree28f6bc202294b63ba65926cf15532c0a2f5b0619 /drivers/clk/bcm/clk-bcm2835.c
parent6ff33f3902c3b1c5d0db6b1e2c70b6d76fba357f (diff)
downloadop-kernel-dev-4f61d8e220c110de90a02736ceb55e1e398d6be7.zip
op-kernel-dev-4f61d8e220c110de90a02736ceb55e1e398d6be7.tar.gz
clk: bcm2835: Move under bcm/ with other Broadcom SoC clk drivers.
clk-bcm2835.c predates the drivers under bcm/, but all the new BCM drivers are going in there so let's follow them. Signed-off-by: Eric Anholt <eric@anholt.net> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Diffstat (limited to 'drivers/clk/bcm/clk-bcm2835.c')
-rw-r--r--drivers/clk/bcm/clk-bcm2835.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
new file mode 100644
index 0000000..dd295e4
--- /dev/null
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2010 Broadcom
+ * Copyright (C) 2012 Stephen Warren
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/clk/bcm2835.h>
+#include <linux/of.h>
+
+/*
+ * These are fixed clocks. They're probably not all root clocks and it may
+ * be possible to turn them on and off but until this is mapped out better
+ * it's the only way they can be used.
+ */
+void __init bcm2835_init_clocks(void)
+{
+ struct clk *clk;
+ int ret;
+
+ clk = clk_register_fixed_rate(NULL, "apb_pclk", NULL, CLK_IS_ROOT,
+ 126000000);
+ if (IS_ERR(clk))
+ pr_err("apb_pclk not registered\n");
+
+ clk = clk_register_fixed_rate(NULL, "uart0_pclk", NULL, CLK_IS_ROOT,
+ 3000000);
+ if (IS_ERR(clk))
+ pr_err("uart0_pclk not registered\n");
+ ret = clk_register_clkdev(clk, NULL, "20201000.uart");
+ if (ret)
+ pr_err("uart0_pclk alias not registered\n");
+
+ clk = clk_register_fixed_rate(NULL, "uart1_pclk", NULL, CLK_IS_ROOT,
+ 125000000);
+ if (IS_ERR(clk))
+ pr_err("uart1_pclk not registered\n");
+ ret = clk_register_clkdev(clk, NULL, "20215000.uart");
+ if (ret)
+ pr_err("uart1_pclk alias not registered\n");
+}
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