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authorIngo Molnar <mingo@elte.hu>2009-09-02 02:17:56 -0400
committerIngo Molnar <mingo@elte.hu>2009-09-02 02:17:56 -0400
commit936e894a976dd3b0f07f1f6f43c17b77b7e6146d (patch)
tree5ed5c1f6735dcd26550594df23c8f7fe2aa21a15 /arch/arm/mach-omap2/clock34xx.c
parent69575d388603365f2afbf4166df93152df59b165 (diff)
parent326ba5010a5429a5a528b268b36a5900d4ab0eba (diff)
Merge commit 'v2.6.31-rc8' into x86/txt
Conflicts: arch/x86/kernel/reboot.c security/Kconfig Merge reason: resolve the conflicts, bump up from rc3 to rc8. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/arm/mach-omap2/clock34xx.c')
-rw-r--r--arch/arm/mach-omap2/clock34xx.c155
1 files changed, 139 insertions, 16 deletions
diff --git a/arch/arm/mach-omap2/clock34xx.c b/arch/arm/mach-omap2/clock34xx.c
index 045da923e75b..cd7819cc0c9e 100644
--- a/arch/arm/mach-omap2/clock34xx.c
+++ b/arch/arm/mach-omap2/clock34xx.c
@@ -2,7 +2,7 @@
2 * OMAP3-specific clock framework functions 2 * OMAP3-specific clock framework functions
3 * 3 *
4 * Copyright (C) 2007-2008 Texas Instruments, Inc. 4 * Copyright (C) 2007-2008 Texas Instruments, Inc.
5 * Copyright (C) 2007-2008 Nokia Corporation 5 * Copyright (C) 2007-2009 Nokia Corporation
6 * 6 *
7 * Written by Paul Walmsley 7 * Written by Paul Walmsley
8 * Testing and integration fixes by Jouni Högander 8 * Testing and integration fixes by Jouni Högander
@@ -41,6 +41,37 @@
41 41
42static const struct clkops clkops_noncore_dpll_ops; 42static const struct clkops clkops_noncore_dpll_ops;
43 43
44static void omap3430es2_clk_ssi_find_idlest(struct clk *clk,
45 void __iomem **idlest_reg,
46 u8 *idlest_bit);
47static void omap3430es2_clk_hsotgusb_find_idlest(struct clk *clk,
48 void __iomem **idlest_reg,
49 u8 *idlest_bit);
50static void omap3430es2_clk_dss_usbhost_find_idlest(struct clk *clk,
51 void __iomem **idlest_reg,
52 u8 *idlest_bit);
53
54static const struct clkops clkops_omap3430es2_ssi_wait = {
55 .enable = omap2_dflt_clk_enable,
56 .disable = omap2_dflt_clk_disable,
57 .find_idlest = omap3430es2_clk_ssi_find_idlest,
58 .find_companion = omap2_clk_dflt_find_companion,
59};
60
61static const struct clkops clkops_omap3430es2_hsotgusb_wait = {
62 .enable = omap2_dflt_clk_enable,
63 .disable = omap2_dflt_clk_disable,
64 .find_idlest = omap3430es2_clk_hsotgusb_find_idlest,
65 .find_companion = omap2_clk_dflt_find_companion,
66};
67
68static const struct clkops clkops_omap3430es2_dss_usbhost_wait = {
69 .enable = omap2_dflt_clk_enable,
70 .disable = omap2_dflt_clk_disable,
71 .find_idlest = omap3430es2_clk_dss_usbhost_find_idlest,
72 .find_companion = omap2_clk_dflt_find_companion,
73};
74
44#include "clock34xx.h" 75#include "clock34xx.h"
45 76
46struct omap_clk { 77struct omap_clk {
@@ -157,10 +188,13 @@ static struct omap_clk omap34xx_clks[] = {
157 CLK(NULL, "fshostusb_fck", &fshostusb_fck, CK_3430ES1), 188 CLK(NULL, "fshostusb_fck", &fshostusb_fck, CK_3430ES1),
158 CLK(NULL, "core_12m_fck", &core_12m_fck, CK_343X), 189 CLK(NULL, "core_12m_fck", &core_12m_fck, CK_343X),
159 CLK("omap_hdq.0", "fck", &hdq_fck, CK_343X), 190 CLK("omap_hdq.0", "fck", &hdq_fck, CK_343X),
160 CLK(NULL, "ssi_ssr_fck", &ssi_ssr_fck, CK_343X), 191 CLK(NULL, "ssi_ssr_fck", &ssi_ssr_fck_3430es1, CK_3430ES1),
161 CLK(NULL, "ssi_sst_fck", &ssi_sst_fck, CK_343X), 192 CLK(NULL, "ssi_ssr_fck", &ssi_ssr_fck_3430es2, CK_3430ES2),
193 CLK(NULL, "ssi_sst_fck", &ssi_sst_fck_3430es1, CK_3430ES1),
194 CLK(NULL, "ssi_sst_fck", &ssi_sst_fck_3430es2, CK_3430ES2),
162 CLK(NULL, "core_l3_ick", &core_l3_ick, CK_343X), 195 CLK(NULL, "core_l3_ick", &core_l3_ick, CK_343X),
163 CLK("musb_hdrc", "ick", &hsotgusb_ick, CK_343X), 196 CLK("musb_hdrc", "ick", &hsotgusb_ick_3430es1, CK_3430ES1),
197 CLK("musb_hdrc", "ick", &hsotgusb_ick_3430es2, CK_3430ES2),
164 CLK(NULL, "sdrc_ick", &sdrc_ick, CK_343X), 198 CLK(NULL, "sdrc_ick", &sdrc_ick, CK_343X),
165 CLK(NULL, "gpmc_fck", &gpmc_fck, CK_343X), 199 CLK(NULL, "gpmc_fck", &gpmc_fck, CK_343X),
166 CLK(NULL, "security_l3_ick", &security_l3_ick, CK_343X), 200 CLK(NULL, "security_l3_ick", &security_l3_ick, CK_343X),
@@ -193,18 +227,21 @@ static struct omap_clk omap34xx_clks[] = {
193 CLK(NULL, "mailboxes_ick", &mailboxes_ick, CK_343X), 227 CLK(NULL, "mailboxes_ick", &mailboxes_ick, CK_343X),
194 CLK(NULL, "omapctrl_ick", &omapctrl_ick, CK_343X), 228 CLK(NULL, "omapctrl_ick", &omapctrl_ick, CK_343X),
195 CLK(NULL, "ssi_l4_ick", &ssi_l4_ick, CK_343X), 229 CLK(NULL, "ssi_l4_ick", &ssi_l4_ick, CK_343X),
196 CLK(NULL, "ssi_ick", &ssi_ick, CK_343X), 230 CLK(NULL, "ssi_ick", &ssi_ick_3430es1, CK_3430ES1),
231 CLK(NULL, "ssi_ick", &ssi_ick_3430es2, CK_3430ES2),
197 CLK(NULL, "usb_l4_ick", &usb_l4_ick, CK_3430ES1), 232 CLK(NULL, "usb_l4_ick", &usb_l4_ick, CK_3430ES1),
198 CLK(NULL, "security_l4_ick2", &security_l4_ick2, CK_343X), 233 CLK(NULL, "security_l4_ick2", &security_l4_ick2, CK_343X),
199 CLK(NULL, "aes1_ick", &aes1_ick, CK_343X), 234 CLK(NULL, "aes1_ick", &aes1_ick, CK_343X),
200 CLK("omap_rng", "ick", &rng_ick, CK_343X), 235 CLK("omap_rng", "ick", &rng_ick, CK_343X),
201 CLK(NULL, "sha11_ick", &sha11_ick, CK_343X), 236 CLK(NULL, "sha11_ick", &sha11_ick, CK_343X),
202 CLK(NULL, "des1_ick", &des1_ick, CK_343X), 237 CLK(NULL, "des1_ick", &des1_ick, CK_343X),
203 CLK("omapfb", "dss1_fck", &dss1_alwon_fck, CK_343X), 238 CLK("omapfb", "dss1_fck", &dss1_alwon_fck_3430es1, CK_3430ES1),
239 CLK("omapfb", "dss1_fck", &dss1_alwon_fck_3430es2, CK_3430ES2),
204 CLK("omapfb", "tv_fck", &dss_tv_fck, CK_343X), 240 CLK("omapfb", "tv_fck", &dss_tv_fck, CK_343X),
205 CLK("omapfb", "video_fck", &dss_96m_fck, CK_343X), 241 CLK("omapfb", "video_fck", &dss_96m_fck, CK_343X),
206 CLK("omapfb", "dss2_fck", &dss2_alwon_fck, CK_343X), 242 CLK("omapfb", "dss2_fck", &dss2_alwon_fck, CK_343X),
207 CLK("omapfb", "ick", &dss_ick, CK_343X), 243 CLK("omapfb", "ick", &dss_ick_3430es1, CK_3430ES1),
244 CLK("omapfb", "ick", &dss_ick_3430es2, CK_3430ES2),
208 CLK(NULL, "cam_mclk", &cam_mclk, CK_343X), 245 CLK(NULL, "cam_mclk", &cam_mclk, CK_343X),
209 CLK(NULL, "cam_ick", &cam_ick, CK_343X), 246 CLK(NULL, "cam_ick", &cam_ick, CK_343X),
210 CLK(NULL, "csi2_96m_fck", &csi2_96m_fck, CK_343X), 247 CLK(NULL, "csi2_96m_fck", &csi2_96m_fck, CK_343X),
@@ -301,6 +338,73 @@ static struct omap_clk omap34xx_clks[] = {
301#define SDRC_MPURATE_LOOPS 96 338#define SDRC_MPURATE_LOOPS 96
302 339
303/** 340/**
341 * omap3430es2_clk_ssi_find_idlest - return CM_IDLEST info for SSI
342 * @clk: struct clk * being enabled
343 * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into
344 * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into
345 *
346 * The OMAP3430ES2 SSI target CM_IDLEST bit is at a different shift
347 * from the CM_{I,F}CLKEN bit. Pass back the correct info via
348 * @idlest_reg and @idlest_bit. No return value.
349 */
350static void omap3430es2_clk_ssi_find_idlest(struct clk *clk,
351 void __iomem **idlest_reg,
352 u8 *idlest_bit)
353{
354 u32 r;
355
356 r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20);
357 *idlest_reg = (__force void __iomem *)r;
358 *idlest_bit = OMAP3430ES2_ST_SSI_IDLE_SHIFT;
359}
360
361/**
362 * omap3430es2_clk_dss_usbhost_find_idlest - CM_IDLEST info for DSS, USBHOST
363 * @clk: struct clk * being enabled
364 * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into
365 * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into
366 *
367 * Some OMAP modules on OMAP3 ES2+ chips have both initiator and
368 * target IDLEST bits. For our purposes, we are concerned with the
369 * target IDLEST bits, which exist at a different bit position than
370 * the *CLKEN bit position for these modules (DSS and USBHOST) (The
371 * default find_idlest code assumes that they are at the same
372 * position.) No return value.
373 */
374static void omap3430es2_clk_dss_usbhost_find_idlest(struct clk *clk,
375 void __iomem **idlest_reg,
376 u8 *idlest_bit)
377{
378 u32 r;
379
380 r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20);
381 *idlest_reg = (__force void __iomem *)r;
382 /* USBHOST_IDLE has same shift */
383 *idlest_bit = OMAP3430ES2_ST_DSS_IDLE_SHIFT;
384}
385
386/**
387 * omap3430es2_clk_hsotgusb_find_idlest - return CM_IDLEST info for HSOTGUSB
388 * @clk: struct clk * being enabled
389 * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into
390 * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into
391 *
392 * The OMAP3430ES2 HSOTGUSB target CM_IDLEST bit is at a different
393 * shift from the CM_{I,F}CLKEN bit. Pass back the correct info via
394 * @idlest_reg and @idlest_bit. No return value.
395 */
396static void omap3430es2_clk_hsotgusb_find_idlest(struct clk *clk,
397 void __iomem **idlest_reg,
398 u8 *idlest_bit)
399{
400 u32 r;
401
402 r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20);
403 *idlest_reg = (__force void __iomem *)r;
404 *idlest_bit = OMAP3430ES2_ST_HSOTGUSB_IDLE_SHIFT;
405}
406
407/**
304 * omap3_dpll_recalc - recalculate DPLL rate 408 * omap3_dpll_recalc - recalculate DPLL rate
305 * @clk: DPLL struct clk 409 * @clk: DPLL struct clk
306 * 410 *
@@ -725,7 +829,9 @@ static int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate)
725 u32 unlock_dll = 0; 829 u32 unlock_dll = 0;
726 u32 c; 830 u32 c;
727 unsigned long validrate, sdrcrate, mpurate; 831 unsigned long validrate, sdrcrate, mpurate;
728 struct omap_sdrc_params *sp; 832 struct omap_sdrc_params *sdrc_cs0;
833 struct omap_sdrc_params *sdrc_cs1;
834 int ret;
729 835
730 if (!clk || !rate) 836 if (!clk || !rate)
731 return -EINVAL; 837 return -EINVAL;
@@ -743,8 +849,8 @@ static int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate)
743 else 849 else
744 sdrcrate >>= ((clk->rate / rate) >> 1); 850 sdrcrate >>= ((clk->rate / rate) >> 1);
745 851
746 sp = omap2_sdrc_get_params(sdrcrate); 852 ret = omap2_sdrc_get_params(sdrcrate, &sdrc_cs0, &sdrc_cs1);
747 if (!sp) 853 if (ret)
748 return -EINVAL; 854 return -EINVAL;
749 855
750 if (sdrcrate < MIN_SDRC_DLL_LOCK_FREQ) { 856 if (sdrcrate < MIN_SDRC_DLL_LOCK_FREQ) {
@@ -765,12 +871,29 @@ static int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate)
765 871
766 pr_debug("clock: changing CORE DPLL rate from %lu to %lu\n", clk->rate, 872 pr_debug("clock: changing CORE DPLL rate from %lu to %lu\n", clk->rate,
767 validrate); 873 validrate);
768 pr_debug("clock: SDRC timing params used: %08x %08x %08x\n", 874 pr_debug("clock: SDRC CS0 timing params used:"
769 sp->rfr_ctrl, sp->actim_ctrla, sp->actim_ctrlb); 875 " RFR %08x CTRLA %08x CTRLB %08x MR %08x\n",
770 876 sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla,
771 omap3_configure_core_dpll(sp->rfr_ctrl, sp->actim_ctrla, 877 sdrc_cs0->actim_ctrlb, sdrc_cs0->mr);
772 sp->actim_ctrlb, new_div, unlock_dll, c, 878 if (sdrc_cs1)
773 sp->mr, rate > clk->rate); 879 pr_debug("clock: SDRC CS1 timing params used: "
880 " RFR %08x CTRLA %08x CTRLB %08x MR %08x\n",
881 sdrc_cs1->rfr_ctrl, sdrc_cs1->actim_ctrla,
882 sdrc_cs1->actim_ctrlb, sdrc_cs1->mr);
883
884 if (sdrc_cs1)
885 omap3_configure_core_dpll(
886 new_div, unlock_dll, c, rate > clk->rate,
887 sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla,
888 sdrc_cs0->actim_ctrlb, sdrc_cs0->mr,
889 sdrc_cs1->rfr_ctrl, sdrc_cs1->actim_ctrla,
890 sdrc_cs1->actim_ctrlb, sdrc_cs1->mr);
891 else
892 omap3_configure_core_dpll(
893 new_div, unlock_dll, c, rate > clk->rate,
894 sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla,
895 sdrc_cs0->actim_ctrlb, sdrc_cs0->mr,
896 0, 0, 0, 0);
774 897
775 return 0; 898 return 0;
776} 899}