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author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-01-11 19:28:19 +0400 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-01-11 19:28:19 +0400 |
commit | 734d1ece37fbf3d2ddfc71bc6c69e0fe35f02542 (patch) | |
tree | c4805dd7e746b1feb9e09e9849f3245d0b2c0c6b /drivers/clk/versatile/clk-realview.c | |
parent | 216c82c6aba63eeb49d7654b448e0d47bea255bb (diff) | |
parent | 9931faca02c604c22335f5a935a501bb2ace6e20 (diff) | |
download | linux-734d1ece37fbf3d2ddfc71bc6c69e0fe35f02542.tar.xz |
Merge tag 'v3.8-rc3' into v4l_for_linus
Linux 3.8-rc3
* tag 'v3.8-rc3': (11110 commits)
Linux 3.8-rc3
mm: reinstante dropped pmd_trans_splitting() check
cred: Remove tgcred pointer from struct cred
drm/ttm: fix fence locking in ttm_buffer_object_transfer
ARM: clps711x: Fix bad merge of clockevents setup
ARM: highbank: save and restore L2 cache and GIC on suspend
ARM: highbank: add a power request clear
ARM: highbank: fix secondary boot and hotplug
ARM: highbank: fix typos with hignbank in power request functions
ARM: dts: fix highbank cpu mpidr values
ARM: dts: add device_type prop to cpu nodes on Calxeda platforms
drm/prime: drop reference on imported dma-buf come from gem
xen/netfront: improve truesize tracking
ARM: mx5: Fix MX53 flexcan2 clock
ARM: OMAP2+: am33xx-hwmod: Fix wrongly terminated am33xx_usbss_mpu_irqs array
sctp: fix Kconfig bug in default cookie hmac selection
EDAC: Cleanup device deregistering path
EDAC: Fix EDAC Kconfig menu
EDAC: Fix kernel panic on module unloading
ALSA: hda - add mute LED for HP Pavilion 17 (Realtek codec)
...
Diffstat (limited to 'drivers/clk/versatile/clk-realview.c')
-rw-r--r-- | drivers/clk/versatile/clk-realview.c | 65 |
1 files changed, 22 insertions, 43 deletions
diff --git a/drivers/clk/versatile/clk-realview.c b/drivers/clk/versatile/clk-realview.c index e21a99cef378..cda07e70a408 100644 --- a/drivers/clk/versatile/clk-realview.c +++ b/drivers/clk/versatile/clk-realview.c @@ -1,3 +1,11 @@ +/* + * Clock driver for the ARM RealView boards + * Copyright (C) 2012 Linus Walleij + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ #include <linux/clk.h> #include <linux/clkdev.h> #include <linux/err.h> @@ -13,38 +21,6 @@ * Implementation of the ARM RealView clock trees. */ -static void __iomem *sys_lock; -static void __iomem *sys_vcoreg; - -/** - * realview_oscvco_get() - get ICST OSC settings for the RealView - */ -static struct icst_vco realview_oscvco_get(void) -{ - u32 val; - struct icst_vco vco; - - val = readl(sys_vcoreg); - vco.v = val & 0x1ff; - vco.r = (val >> 9) & 0x7f; - vco.s = (val >> 16) & 03; - return vco; -} - -static void realview_oscvco_set(struct icst_vco vco) -{ - u32 val; - - val = readl(sys_vcoreg) & ~0x7ffff; - val |= vco.v | (vco.r << 9) | (vco.s << 16); - - /* This magic unlocks the CM VCO so it can be controlled */ - writel(0xa05f, sys_lock); - writel(val, sys_vcoreg); - /* This locks the CM again */ - writel(0, sys_lock); -} - static const struct icst_params realview_oscvco_params = { .ref = 24000000, .vco_max = ICST307_VCO_MAX, @@ -57,10 +33,16 @@ static const struct icst_params realview_oscvco_params = { .idx2s = icst307_idx2s, }; -static const struct clk_icst_desc __initdata realview_icst_desc = { +static const struct clk_icst_desc __initdata realview_osc0_desc = { + .params = &realview_oscvco_params, + .vco_offset = REALVIEW_SYS_OSC0_OFFSET, + .lock_offset = REALVIEW_SYS_LOCK_OFFSET, +}; + +static const struct clk_icst_desc __initdata realview_osc4_desc = { .params = &realview_oscvco_params, - .getvco = realview_oscvco_get, - .setvco = realview_oscvco_set, + .vco_offset = REALVIEW_SYS_OSC4_OFFSET, + .lock_offset = REALVIEW_SYS_LOCK_OFFSET, }; /* @@ -70,13 +52,6 @@ void __init realview_clk_init(void __iomem *sysbase, bool is_pb1176) { struct clk *clk; - sys_lock = sysbase + REALVIEW_SYS_LOCK_OFFSET; - if (is_pb1176) - sys_vcoreg = sysbase + REALVIEW_SYS_OSC0_OFFSET; - else - sys_vcoreg = sysbase + REALVIEW_SYS_OSC4_OFFSET; - - /* APB clock dummy */ clk = clk_register_fixed_rate(NULL, "apb_pclk", NULL, CLK_IS_ROOT, 0); clk_register_clkdev(clk, "apb_pclk", NULL); @@ -108,7 +83,11 @@ void __init realview_clk_init(void __iomem *sysbase, bool is_pb1176) clk_register_clkdev(clk, NULL, "sp804"); /* ICST VCO clock */ - clk = icst_clk_register(NULL, &realview_icst_desc); + if (is_pb1176) + clk = icst_clk_register(NULL, &realview_osc0_desc, sysbase); + else + clk = icst_clk_register(NULL, &realview_osc4_desc, sysbase); + clk_register_clkdev(clk, NULL, "dev:clcd"); clk_register_clkdev(clk, NULL, "issp:clcd"); } |