From ea7743e2719d34eacb4cb206ae227120029d06c6 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 29 Jan 2016 15:06:25 +0100 Subject: 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 Acked-by: Stephen Boyd Signed-off-by: Robert Jarzmik --- drivers/clk/pxa/clk-pxa25x.c | 12 ++++++------ drivers/clk/pxa/clk-pxa27x.c | 34 +++++++++++++++++----------------- drivers/clk/pxa/clk-pxa3xx.c | 3 +-- 3 files changed, 24 insertions(+), 25 deletions(-) (limited to 'drivers/clk/pxa') diff --git a/drivers/clk/pxa/clk-pxa25x.c b/drivers/clk/pxa/clk-pxa25x.c index b7747229db9a..a9353cd4ce17 100644 --- a/drivers/clk/pxa/clk-pxa25x.c +++ b/drivers/clk/pxa/clk-pxa25x.c @@ -84,7 +84,7 @@ unsigned int pxa25x_get_clk_frequency_khz(int info) static unsigned long clk_pxa25x_memory_get_rate(struct clk_hw *hw, unsigned long parent_rate) { - unsigned long cccr = CCCR; + unsigned long cccr = readl(CCCR); unsigned int m = M_clk_mult[(cccr >> 5) & 0x03]; return parent_rate / m; @@ -99,7 +99,7 @@ PARENTS(pxa25x_osc3) = { "osc_3_6864mhz", "osc_3_6864mhz" }; #define PXA25X_CKEN(dev_id, con_id, parents, mult, div, \ bit, is_lp, flags) \ PXA_CKEN(dev_id, con_id, bit, parents, mult, div, mult, div, \ - is_lp, &CKEN, CKEN_ ## bit, flags) + is_lp, CKEN, CKEN_ ## bit, flags) #define PXA25X_PBUS95_CKEN(dev_id, con_id, bit, mult_hp, div_hp, delay) \ PXA25X_CKEN(dev_id, con_id, pxa25x_pbus95_parents, mult_hp, \ div_hp, bit, NULL, 0) @@ -112,10 +112,10 @@ PARENTS(pxa25x_osc3) = { "osc_3_6864mhz", "osc_3_6864mhz" }; #define PXA25X_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 PXA25X_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 pxa25x_clocks[] __initdata = { PXA25X_PBUS95_CKEN("pxa2xx-mci.0", NULL, MMC, 1, 5, 0), @@ -162,7 +162,7 @@ MUX_RO_RATE_RO_OPS(clk_pxa25x_core, "core"); static unsigned long clk_pxa25x_run_get_rate(struct clk_hw *hw, unsigned long parent_rate) { - unsigned long cccr = CCCR; + unsigned long cccr = readl(CCCR); unsigned int n2 = N2_clk_mult[(cccr >> 7) & 0x07]; return (parent_rate / n2) * 2; @@ -173,7 +173,7 @@ RATE_RO_OPS(clk_pxa25x_run, "run"); static unsigned long clk_pxa25x_cpll_get_rate(struct clk_hw *hw, unsigned long parent_rate) { - unsigned long clkcfg, cccr = CCCR; + unsigned long clkcfg, cccr = readl(CCCR); unsigned int l, m, n2, t; asm("mrc\tp14, 0, %0, c6, c0, 0" : "=r" (clkcfg)); 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); diff --git a/drivers/clk/pxa/clk-pxa3xx.c b/drivers/clk/pxa/clk-pxa3xx.c index 4af4eed5f89f..ea679718601c 100644 --- a/drivers/clk/pxa/clk-pxa3xx.c +++ b/drivers/clk/pxa/clk-pxa3xx.c @@ -334,8 +334,7 @@ static void __init pxa3xx_base_clocks_init(void) clk_register_clk_pxa3xx_system_bus(); clk_register_clk_pxa3xx_ac97(); clk_register_clk_pxa3xx_smemc(); - clk_register_gate(NULL, "CLK_POUT", "osc_13mhz", 0, - (void __iomem *)&OSCC, 11, 0, NULL); + clk_register_gate(NULL, "CLK_POUT", "osc_13mhz", 0, OSCC, 11, 0, NULL); clkdev_pxa_register(CLK_OSTIMER, "OSTIMER0", NULL, clk_register_fixed_factor(NULL, "os-timer0", "osc_13mhz", 0, 1, 4)); -- cgit v1.2.3