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authorTony Lindgren <tony@atomide.com>2012-11-30 08:40:31 -0800
committerTony Lindgren <tony@atomide.com>2012-11-30 08:40:31 -0800
commit2589d056122f6dcb405d411eae872aac8cf9da1b (patch)
tree8b2fb3a9f8205c110842c59ed42987a6f2b17e1a /arch/arm/mach-omap2/powerdomain33xx.c
parent42a1cc9c0ec2a00b53b4f02849dc4377b09b3b05 (diff)
parent8b9c1ac2e11a9fb3a5a8860fb7570ff7633aa7f7 (diff)
downloadolio-linux-3.10-2589d056122f6dcb405d411eae872aac8cf9da1b.tar.xz
olio-linux-3.10-2589d056122f6dcb405d411eae872aac8cf9da1b.zip
Merge tag 'tags/omap-for-v3.8/devel-prcm-signed' into omap-for-v3.8/cleanup-headers-prepare-multiplatform-v3
omap prcm changes via Paul Walmsley <paul@pwsan.com>: Some miscellaneous OMAP hwmod changes for 3.8, along with a PRM change needed for one of the hwmod patches to function. Basic test logs for this branch on top of Tony's omap-for-v3.8/clock branch at commit 558a0780b0a04862a678f7823215424b4e5501f9 are here: http://www.pwsan.com/omap/testlogs/hwmod_devel_a_3.8/20121121161522/ However, omap-for-v3.8/clock at 558a0780 does not include some fixes that are needed for a successful test. With several reverts, fixes, and workarounds applied, the following test logs were obtained: http://www.pwsan.com/omap/testlogs/TEST_hwmod_devel_a_3.8/20121121162719/ which indicate that the series tests cleanly. Conflicts: arch/arm/mach-omap2/cm33xx.c arch/arm/mach-omap2/io.c arch/arm/mach-omap2/prm_common.c
Diffstat (limited to 'arch/arm/mach-omap2/powerdomain33xx.c')
-rw-r--r--arch/arm/mach-omap2/powerdomain33xx.c229
1 files changed, 0 insertions, 229 deletions
diff --git a/arch/arm/mach-omap2/powerdomain33xx.c b/arch/arm/mach-omap2/powerdomain33xx.c
deleted file mode 100644
index 67c5663899b..00000000000
--- a/arch/arm/mach-omap2/powerdomain33xx.c
+++ /dev/null
@@ -1,229 +0,0 @@
-/*
- * AM33XX Powerdomain control
- *
- * Copyright (C) 2011-2012 Texas Instruments Incorporated - http://www.ti.com/
- *
- * Derived from mach-omap2/powerdomain44xx.c written by Rajendra Nayak
- * <rnayak@ti.com>
- *
- * 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.
- *
- * This program is distributed "as is" WITHOUT ANY WARRANTY of any
- * kind, whether express or implied; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <linux/io.h>
-#include <linux/errno.h>
-#include <linux/delay.h>
-
-#include <plat/prcm.h>
-
-#include "powerdomain.h"
-#include "prm33xx.h"
-#include "prm-regbits-33xx.h"
-
-
-static int am33xx_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst)
-{
- am33xx_prm_rmw_reg_bits(OMAP_POWERSTATE_MASK,
- (pwrst << OMAP_POWERSTATE_SHIFT),
- pwrdm->prcm_offs, pwrdm->pwrstctrl_offs);
- return 0;
-}
-
-static int am33xx_pwrdm_read_next_pwrst(struct powerdomain *pwrdm)
-{
- u32 v;
-
- v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstctrl_offs);
- v &= OMAP_POWERSTATE_MASK;
- v >>= OMAP_POWERSTATE_SHIFT;
-
- return v;
-}
-
-static int am33xx_pwrdm_read_pwrst(struct powerdomain *pwrdm)
-{
- u32 v;
-
- v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstst_offs);
- v &= OMAP_POWERSTATEST_MASK;
- v >>= OMAP_POWERSTATEST_SHIFT;
-
- return v;
-}
-
-static int am33xx_pwrdm_read_prev_pwrst(struct powerdomain *pwrdm)
-{
- u32 v;
-
- v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstst_offs);
- v &= AM33XX_LASTPOWERSTATEENTERED_MASK;
- v >>= AM33XX_LASTPOWERSTATEENTERED_SHIFT;
-
- return v;
-}
-
-static int am33xx_pwrdm_set_lowpwrstchange(struct powerdomain *pwrdm)
-{
- am33xx_prm_rmw_reg_bits(AM33XX_LOWPOWERSTATECHANGE_MASK,
- (1 << AM33XX_LOWPOWERSTATECHANGE_SHIFT),
- pwrdm->prcm_offs, pwrdm->pwrstctrl_offs);
- return 0;
-}
-
-static int am33xx_pwrdm_clear_all_prev_pwrst(struct powerdomain *pwrdm)
-{
- am33xx_prm_rmw_reg_bits(AM33XX_LASTPOWERSTATEENTERED_MASK,
- AM33XX_LASTPOWERSTATEENTERED_MASK,
- pwrdm->prcm_offs, pwrdm->pwrstst_offs);
- return 0;
-}
-
-static int am33xx_pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst)
-{
- u32 m;
-
- m = pwrdm->logicretstate_mask;
- if (!m)
- return -EINVAL;
-
- am33xx_prm_rmw_reg_bits(m, (pwrst << __ffs(m)),
- pwrdm->prcm_offs, pwrdm->pwrstctrl_offs);
-
- return 0;
-}
-
-static int am33xx_pwrdm_read_logic_pwrst(struct powerdomain *pwrdm)
-{
- u32 v;
-
- v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstst_offs);
- v &= AM33XX_LOGICSTATEST_MASK;
- v >>= AM33XX_LOGICSTATEST_SHIFT;
-
- return v;
-}
-
-static int am33xx_pwrdm_read_logic_retst(struct powerdomain *pwrdm)
-{
- u32 v, m;
-
- m = pwrdm->logicretstate_mask;
- if (!m)
- return -EINVAL;
-
- v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstctrl_offs);
- v &= m;
- v >>= __ffs(m);
-
- return v;
-}
-
-static int am33xx_pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8 bank,
- u8 pwrst)
-{
- u32 m;
-
- m = pwrdm->mem_on_mask[bank];
- if (!m)
- return -EINVAL;
-
- am33xx_prm_rmw_reg_bits(m, (pwrst << __ffs(m)),
- pwrdm->prcm_offs, pwrdm->pwrstctrl_offs);
-
- return 0;
-}
-
-static int am33xx_pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank,
- u8 pwrst)
-{
- u32 m;
-
- m = pwrdm->mem_ret_mask[bank];
- if (!m)
- return -EINVAL;
-
- am33xx_prm_rmw_reg_bits(m, (pwrst << __ffs(m)),
- pwrdm->prcm_offs, pwrdm->pwrstctrl_offs);
-
- return 0;
-}
-
-static int am33xx_pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8 bank)
-{
- u32 m, v;
-
- m = pwrdm->mem_pwrst_mask[bank];
- if (!m)
- return -EINVAL;
-
- v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstst_offs);
- v &= m;
- v >>= __ffs(m);
-
- return v;
-}
-
-static int am33xx_pwrdm_read_mem_retst(struct powerdomain *pwrdm, u8 bank)
-{
- u32 m, v;
-
- m = pwrdm->mem_retst_mask[bank];
- if (!m)
- return -EINVAL;
-
- v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstctrl_offs);
- v &= m;
- v >>= __ffs(m);
-
- return v;
-}
-
-static int am33xx_pwrdm_wait_transition(struct powerdomain *pwrdm)
-{
- u32 c = 0;
-
- /*
- * REVISIT: pwrdm_wait_transition() may be better implemented
- * via a callback and a periodic timer check -- how long do we expect
- * powerdomain transitions to take?
- */
-
- /* XXX Is this udelay() value meaningful? */
- while ((am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstst_offs)
- & OMAP_INTRANSITION_MASK) &&
- (c++ < PWRDM_TRANSITION_BAILOUT))
- udelay(1);
-
- if (c > PWRDM_TRANSITION_BAILOUT) {
- pr_err("powerdomain: %s: waited too long to complete transition\n",
- pwrdm->name);
- return -EAGAIN;
- }
-
- pr_debug("powerdomain: completed transition in %d loops\n", c);
-
- return 0;
-}
-
-struct pwrdm_ops am33xx_pwrdm_operations = {
- .pwrdm_set_next_pwrst = am33xx_pwrdm_set_next_pwrst,
- .pwrdm_read_next_pwrst = am33xx_pwrdm_read_next_pwrst,
- .pwrdm_read_pwrst = am33xx_pwrdm_read_pwrst,
- .pwrdm_read_prev_pwrst = am33xx_pwrdm_read_prev_pwrst,
- .pwrdm_set_logic_retst = am33xx_pwrdm_set_logic_retst,
- .pwrdm_read_logic_pwrst = am33xx_pwrdm_read_logic_pwrst,
- .pwrdm_read_logic_retst = am33xx_pwrdm_read_logic_retst,
- .pwrdm_clear_all_prev_pwrst = am33xx_pwrdm_clear_all_prev_pwrst,
- .pwrdm_set_lowpwrstchange = am33xx_pwrdm_set_lowpwrstchange,
- .pwrdm_read_mem_pwrst = am33xx_pwrdm_read_mem_pwrst,
- .pwrdm_read_mem_retst = am33xx_pwrdm_read_mem_retst,
- .pwrdm_set_mem_onst = am33xx_pwrdm_set_mem_onst,
- .pwrdm_set_mem_retst = am33xx_pwrdm_set_mem_retst,
- .pwrdm_wait_transition = am33xx_pwrdm_wait_transition,
-};