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authorArnd Bergmann <arnd@arndb.de>2016-01-29 15:06:25 +0100
committerRobert Jarzmik <robert.jarzmik@free.fr>2016-02-01 21:43:41 +0100
commitea7743e2719d34eacb4cb206ae227120029d06c6 (patch)
tree5c2d86bbeb3b13e47c6c4fb60cf57210954e6c76 /drivers/clk/pxa/clk-pxa27x.c
parent92e963f50fc74041b5e9e744c330dca48e04f08d (diff)
downloadtalos-op-linux-ea7743e2719d34eacb4cb206ae227120029d06c6.tar.gz
talos-op-linux-ea7743e2719d34eacb4cb206ae227120029d06c6.zip
ARM: pxa: define clock registers as __iomem
We should not dereference registers as pointers, so use readl/writel instead for these registers. The clock registers are accessed in multiple files, so we have to change them all at once. I stumbled over these registers while looking at something unrelated. There are in fact other registers with the same problem, but I did not try to address those at this point. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Diffstat (limited to 'drivers/clk/pxa/clk-pxa27x.c')
-rw-r--r--drivers/clk/pxa/clk-pxa27x.c34
1 files changed, 17 insertions, 17 deletions
diff --git a/drivers/clk/pxa/clk-pxa27x.c b/drivers/clk/pxa/clk-pxa27x.c
index 5b82d30baf9f..fc2abf97edd7 100644
--- a/drivers/clk/pxa/clk-pxa27x.c
+++ b/drivers/clk/pxa/clk-pxa27x.c
@@ -85,7 +85,7 @@ unsigned int pxa27x_get_clk_frequency_khz(int info)
bool pxa27x_is_ppll_disabled(void)
{
- unsigned long ccsr = CCSR;
+ unsigned long ccsr = readl(CCSR);
return ccsr & (1 << CCCR_PPDIS_BIT);
}
@@ -93,7 +93,7 @@ bool pxa27x_is_ppll_disabled(void)
#define PXA27X_CKEN(dev_id, con_id, parents, mult_hp, div_hp, \
bit, is_lp, flags) \
PXA_CKEN(dev_id, con_id, bit, parents, 1, 1, mult_hp, div_hp, \
- is_lp, &CKEN, CKEN_ ## bit, flags)
+ is_lp, CKEN, CKEN_ ## bit, flags)
#define PXA27X_PBUS_CKEN(dev_id, con_id, bit, mult_hp, div_hp, delay) \
PXA27X_CKEN(dev_id, con_id, pxa27x_pbus_parents, mult_hp, \
div_hp, bit, pxa27x_is_ppll_disabled, 0)
@@ -106,10 +106,10 @@ PARENTS(pxa27x_membus) = { "lcd_base", "lcd_base" };
#define PXA27X_CKEN_1RATE(dev_id, con_id, bit, parents, delay) \
PXA_CKEN_1RATE(dev_id, con_id, bit, parents, \
- &CKEN, CKEN_ ## bit, 0)
+ CKEN, CKEN_ ## bit, 0)
#define PXA27X_CKEN_1RATE_AO(dev_id, con_id, bit, parents, delay) \
PXA_CKEN_1RATE(dev_id, con_id, bit, parents, \
- &CKEN, CKEN_ ## bit, CLK_IGNORE_UNUSED)
+ CKEN, CKEN_ ## bit, CLK_IGNORE_UNUSED)
static struct desc_clk_cken pxa27x_clocks[] __initdata = {
PXA27X_PBUS_CKEN("pxa2xx-uart.0", NULL, FFUART, 2, 42, 1),
@@ -151,7 +151,7 @@ static unsigned long clk_pxa27x_cpll_get_rate(struct clk_hw *hw,
unsigned long clkcfg;
unsigned int t, ht;
unsigned int l, L, n2, N;
- unsigned long ccsr = CCSR;
+ unsigned long ccsr = readl(CCSR);
asm("mrc\tp14, 0, %0, c6, c0, 0" : "=r" (clkcfg));
t = clkcfg & (1 << 0);
@@ -171,8 +171,8 @@ static unsigned long clk_pxa27x_lcd_base_get_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
unsigned int l, osc_forced;
- unsigned long ccsr = CCSR;
- unsigned long cccr = CCCR;
+ unsigned long ccsr = readl(CCSR);
+ unsigned long cccr = readl(CCCR);
l = ccsr & CCSR_L_MASK;
osc_forced = ccsr & (1 << CCCR_CPDIS_BIT);
@@ -193,7 +193,7 @@ static unsigned long clk_pxa27x_lcd_base_get_rate(struct clk_hw *hw,
static u8 clk_pxa27x_lcd_base_get_parent(struct clk_hw *hw)
{
unsigned int osc_forced;
- unsigned long ccsr = CCSR;
+ unsigned long ccsr = readl(CCSR);
osc_forced = ccsr & (1 << CCCR_CPDIS_BIT);
if (osc_forced)
@@ -222,7 +222,7 @@ static unsigned long clk_pxa27x_core_get_rate(struct clk_hw *hw,
{
unsigned long clkcfg;
unsigned int t, ht, b, osc_forced;
- unsigned long ccsr = CCSR;
+ unsigned long ccsr = readl(CCSR);
osc_forced = ccsr & (1 << CCCR_CPDIS_BIT);
asm("mrc\tp14, 0, %0, c6, c0, 0" : "=r" (clkcfg));
@@ -242,7 +242,7 @@ static u8 clk_pxa27x_core_get_parent(struct clk_hw *hw)
{
unsigned long clkcfg;
unsigned int t, ht, b, osc_forced;
- unsigned long ccsr = CCSR;
+ unsigned long ccsr = readl(CCSR);
osc_forced = ccsr & (1 << CCCR_CPDIS_BIT);
if (osc_forced)
@@ -263,7 +263,7 @@ MUX_RO_RATE_RO_OPS(clk_pxa27x_core, "core");
static unsigned long clk_pxa27x_run_get_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
- unsigned long ccsr = CCSR;
+ unsigned long ccsr = readl(CCSR);
unsigned int n2 = (ccsr & CCSR_N2_MASK) >> CCSR_N2_SHIFT;
return (parent_rate / n2) * 2;
@@ -285,7 +285,7 @@ static unsigned long clk_pxa27x_system_bus_get_rate(struct clk_hw *hw,
{
unsigned long clkcfg;
unsigned int b, osc_forced;
- unsigned long ccsr = CCSR;
+ unsigned long ccsr = readl(CCSR);
osc_forced = ccsr & (1 << CCCR_CPDIS_BIT);
asm("mrc\tp14, 0, %0, c6, c0, 0" : "=r" (clkcfg));
@@ -302,7 +302,7 @@ static unsigned long clk_pxa27x_system_bus_get_rate(struct clk_hw *hw,
static u8 clk_pxa27x_system_bus_get_parent(struct clk_hw *hw)
{
unsigned int osc_forced;
- unsigned long ccsr = CCSR;
+ unsigned long ccsr = readl(CCSR);
osc_forced = ccsr & (1 << CCCR_CPDIS_BIT);
if (osc_forced)
@@ -318,8 +318,8 @@ static unsigned long clk_pxa27x_memory_get_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
unsigned int a, l, osc_forced;
- unsigned long cccr = CCCR;
- unsigned long ccsr = CCSR;
+ unsigned long cccr = readl(CCCR);
+ unsigned long ccsr = readl(CCSR);
osc_forced = ccsr & (1 << CCCR_CPDIS_BIT);
a = cccr & (1 << CCCR_A_BIT);
@@ -337,8 +337,8 @@ static unsigned long clk_pxa27x_memory_get_rate(struct clk_hw *hw,
static u8 clk_pxa27x_memory_get_parent(struct clk_hw *hw)
{
unsigned int osc_forced, a;
- unsigned long cccr = CCCR;
- unsigned long ccsr = CCSR;
+ unsigned long cccr = readl(CCCR);
+ unsigned long ccsr = readl(CCSR);
osc_forced = ccsr & (1 << CCCR_CPDIS_BIT);
a = cccr & (1 << CCCR_A_BIT);
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