Davinci: psc - use ioremap()

This patch modifies the psc and clock control code to use ioremap()ed
registers.

Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

diff --git a/arch/arm/mach-davinci/clock.c b/arch/arm/mach-davinci/clock.c
index 868cb76..054c303 100644 (file)
--- a/arch/arm/mach-davinci/clock.c
+++ b/arch/arm/mach-davinci/clock.c
@@ -302,7 +302,6 @@ static unsigned long clk_pllclk_recalc(struct clk *clk)
        struct pll_data *pll = clk->pll_data;
        unsigned long rate = clk->rate;
 
-       pll->base = IO_ADDRESS(pll->phys_base);
        ctrl = __raw_readl(pll->base + PLLCTL);
        rate = pll->input_rate = clk->parent->rate;
 
@@ -458,8 +457,17 @@ int __init davinci_clk_init(struct clk_lookup *clocks)
                                clk->recalc = clk_leafclk_recalc;
                }
 
-               if (clk->pll_data && !clk->pll_data->div_ratio_mask)
-                       clk->pll_data->div_ratio_mask = PLLDIV_RATIO_MASK;
+               if (clk->pll_data) {
+                       struct pll_data *pll = clk->pll_data;
+
+                       if (!pll->div_ratio_mask)
+                               pll->div_ratio_mask = PLLDIV_RATIO_MASK;
+
+                       if (pll->phys_base && !pll->base) {
+                               pll->base = ioremap(pll->phys_base, SZ_4K);
+                               WARN_ON(!pll->base);
+                       }
+               }
 
                if (clk->recalc)
                        clk->rate = clk->recalc(clk);

diff --git a/arch/arm/mach-davinci/da830.c b/arch/arm/mach-davinci/da830.c
index 8a2510c..47a7f49 100644 (file)
--- a/arch/arm/mach-davinci/da830.c
+++ b/arch/arm/mach-davinci/da830.c
@@ -1127,10 +1127,7 @@ static struct map_desc da830_io_desc[] = {
        },
 };
 
-static void __iomem *da830_psc_bases[] = {
-       IO_ADDRESS(DA8XX_PSC0_BASE),
-       IO_ADDRESS(DA8XX_PSC1_BASE),
-};
+static u32 da830_psc_bases[] = { DA8XX_PSC0_BASE, DA8XX_PSC1_BASE };
 
 /* Contents of JTAG ID register used to identify exact cpu type */
 static struct davinci_id da830_ids[] = {

diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index ebfa5ca..2a430bb 100644 (file)
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -782,10 +782,7 @@ static struct map_desc da850_io_desc[] = {
        },
 };
 
-static void __iomem *da850_psc_bases[] = {
-       IO_ADDRESS(DA8XX_PSC0_BASE),
-       IO_ADDRESS(DA8XX_PSC1_BASE),
-};
+static u32 da850_psc_bases[] = { DA8XX_PSC0_BASE, DA8XX_PSC1_BASE };
 
 /* Contents of JTAG ID register used to identify exact cpu type */
 static struct davinci_id da850_ids[] = {

diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index 228b6d1..70a1827 100644 (file)
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -783,9 +783,7 @@ static struct davinci_id dm355_ids[] = {
        },
 };
 
-static void __iomem *dm355_psc_bases[] = {
-       IO_ADDRESS(DAVINCI_PWR_SLEEP_CNTRL_BASE),
-};
+static u32 dm355_psc_bases[] = { DAVINCI_PWR_SLEEP_CNTRL_BASE };
 
 /*
  * T0_BOT: Timer 0, bottom:  clockevent source for hrtimers

diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index b396d58..451a4ef 100644 (file)
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -1002,9 +1002,7 @@ static struct davinci_id dm365_ids[] = {
        },
 };
 
-static void __iomem *dm365_psc_bases[] = {
-       IO_ADDRESS(DAVINCI_PWR_SLEEP_CNTRL_BASE),
-};
+static u32 dm365_psc_bases[] = { DAVINCI_PWR_SLEEP_CNTRL_BASE };
 
 static struct davinci_timer_info dm365_timer_info = {
        .timers         = davinci_timer_instance,

diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 9859567..ee654de 100644 (file)
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -674,9 +674,7 @@ static struct davinci_id dm644x_ids[] = {
        },
 };
 
-static void __iomem *dm644x_psc_bases[] = {
-       IO_ADDRESS(DAVINCI_PWR_SLEEP_CNTRL_BASE),
-};
+static u32 dm644x_psc_bases[] = { DAVINCI_PWR_SLEEP_CNTRL_BASE };
 
 /*
  * T0_BOT: Timer 0, bottom:  clockevent source for hrtimers

diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index f9a8cc4..4c98ef0 100644 (file)
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -758,9 +758,7 @@ static struct davinci_id dm646x_ids[] = {
        },
 };
 
-static void __iomem *dm646x_psc_bases[] = {
-       IO_ADDRESS(DAVINCI_PWR_SLEEP_CNTRL_BASE),
-};
+static u32 dm646x_psc_bases[] = { DAVINCI_PWR_SLEEP_CNTRL_BASE };
 
 /*
  * T0_BOT: Timer 0, bottom:  clockevent source for hrtimers

diff --git a/arch/arm/mach-davinci/include/mach/common.h b/arch/arm/mach-davinci/include/mach/common.h
index 2e15464..4c8dfcb 100644 (file)
--- a/arch/arm/mach-davinci/include/mach/common.h
+++ b/arch/arm/mach-davinci/include/mach/common.h
@@ -49,7 +49,7 @@ struct davinci_soc_info {
        struct davinci_id               *ids;
        unsigned long                   ids_num;
        struct clk_lookup               *cpu_clks;
-       void __iomem                    **psc_bases;
+       u32                             *psc_bases;
        unsigned long                   psc_bases_num;
        void __iomem                    *pinmux_base;
        const struct mux_config         *pinmux_pins;

diff --git a/arch/arm/mach-davinci/psc.c b/arch/arm/mach-davinci/psc.c
index d7cb438..1b15dbd 100644 (file)
--- a/arch/arm/mach-davinci/psc.c
+++ b/arch/arm/mach-davinci/psc.c
@@ -38,8 +38,9 @@ int __init davinci_psc_is_clk_active(unsigned int ctlr, unsigned int id)
                return 0;
        }
 
-       psc_base = soc_info->psc_bases[ctlr];
+       psc_base = ioremap(soc_info->psc_bases[ctlr], SZ_4K);
        mdstat = __raw_readl(psc_base + MDSTAT + 4 * id);
+       iounmap(psc_base);
 
        /* if clocked, state can be "Enable" or "SyncReset" */
        return mdstat & BIT(12);
@@ -59,7 +60,7 @@ void davinci_psc_config(unsigned int domain, unsigned int ctlr,
                return;
        }
 
-       psc_base = soc_info->psc_bases[ctlr];
+       psc_base = ioremap(soc_info->psc_bases[ctlr], SZ_4K);
 
        mdctl = __raw_readl(psc_base + MDCTL + 4 * id);
        mdctl &= ~MDSTAT_STATE_MASK;
@@ -99,4 +100,6 @@ void davinci_psc_config(unsigned int domain, unsigned int ctlr,
        do {
                mdstat = __raw_readl(psc_base + MDSTAT + 4 * id);
        } while (!((mdstat & MDSTAT_STATE_MASK) == next_state));
+
+       iounmap(psc_base);
 }