diff options
Diffstat (limited to 'drivers/clk/shmobile/clk-emev2.c')
| -rw-r--r-- | drivers/clk/shmobile/clk-emev2.c | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/drivers/clk/shmobile/clk-emev2.c b/drivers/clk/shmobile/clk-emev2.c deleted file mode 100644 index a91825471..000000000 --- a/drivers/clk/shmobile/clk-emev2.c +++ /dev/null @@ -1,110 +0,0 @@ -/* - * EMMA Mobile EV2 common clock framework support - * - * Copyright (C) 2013 Takashi Yoshii <takashi.yoshii.ze@renesas.com> - * Copyright (C) 2012 Magnus Damm - * - * 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; version 2 of the License. - * - * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ -#include <linux/clk-provider.h> -#include <linux/clkdev.h> -#include <linux/io.h> -#include <linux/of.h> -#include <linux/of_address.h> - -/* EMEV2 SMU registers */ -#define USIAU0_RSTCTRL 0x094 -#define USIBU1_RSTCTRL 0x0ac -#define USIBU2_RSTCTRL 0x0b0 -#define USIBU3_RSTCTRL 0x0b4 -#define IIC0_RSTCTRL 0x0dc -#define IIC1_RSTCTRL 0x0e0 -#define STI_RSTCTRL 0x124 -#define STI_CLKSEL 0x688 - -static DEFINE_SPINLOCK(lock); - -/* not pretty, but hey */ -static void __iomem *smu_base; - -static void __init emev2_smu_write(unsigned long value, int offs) -{ - BUG_ON(!smu_base || (offs >= PAGE_SIZE)); - writel_relaxed(value, smu_base + offs); -} - -static const struct of_device_id smu_id[] __initconst = { - { .compatible = "renesas,emev2-smu", }, - {}, -}; - -static void __init emev2_smu_init(void) -{ - struct device_node *np; - - np = of_find_matching_node(NULL, smu_id); - BUG_ON(!np); - smu_base = of_iomap(np, 0); - BUG_ON(!smu_base); - of_node_put(np); - - /* setup STI timer to run on 32.768 kHz and deassert reset */ - emev2_smu_write(0, STI_CLKSEL); - emev2_smu_write(1, STI_RSTCTRL); - - /* deassert reset for UART0->UART3 */ - emev2_smu_write(2, USIAU0_RSTCTRL); - emev2_smu_write(2, USIBU1_RSTCTRL); - emev2_smu_write(2, USIBU2_RSTCTRL); - emev2_smu_write(2, USIBU3_RSTCTRL); - - /* deassert reset for IIC0->IIC1 */ - emev2_smu_write(1, IIC0_RSTCTRL); - emev2_smu_write(1, IIC1_RSTCTRL); -} - -static void __init emev2_smu_clkdiv_init(struct device_node *np) -{ - u32 reg[2]; - struct clk *clk; - const char *parent_name = of_clk_get_parent_name(np, 0); - if (WARN_ON(of_property_read_u32_array(np, "reg", reg, 2))) - return; - if (!smu_base) - emev2_smu_init(); - clk = clk_register_divider(NULL, np->name, parent_name, 0, - smu_base + reg[0], reg[1], 8, 0, &lock); - of_clk_add_provider(np, of_clk_src_simple_get, clk); - clk_register_clkdev(clk, np->name, NULL); - pr_debug("## %s %s %p\n", __func__, np->name, clk); -} -CLK_OF_DECLARE(emev2_smu_clkdiv, "renesas,emev2-smu-clkdiv", - emev2_smu_clkdiv_init); - -static void __init emev2_smu_gclk_init(struct device_node *np) -{ - u32 reg[2]; - struct clk *clk; - const char *parent_name = of_clk_get_parent_name(np, 0); - if (WARN_ON(of_property_read_u32_array(np, "reg", reg, 2))) - return; - if (!smu_base) - emev2_smu_init(); - clk = clk_register_gate(NULL, np->name, parent_name, 0, - smu_base + reg[0], reg[1], 0, &lock); - of_clk_add_provider(np, of_clk_src_simple_get, clk); - clk_register_clkdev(clk, np->name, NULL); - pr_debug("## %s %s %p\n", __func__, np->name, clk); -} -CLK_OF_DECLARE(emev2_smu_gclk, "renesas,emev2-smu-gclk", emev2_smu_gclk_init); |