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-rw-r--r--arch/mips/ath79/clock.c258
-rw-r--r--arch/mips/ath79/common.h2
-rw-r--r--arch/mips/ath79/dev-common.c10
-rw-r--r--arch/mips/ath79/setup.c23
4 files changed, 172 insertions, 121 deletions
diff --git a/arch/mips/ath79/clock.c b/arch/mips/ath79/clock.c
index 765ef30e3e1..26479f43767 100644
--- a/arch/mips/ath79/clock.c
+++ b/arch/mips/ath79/clock.c
@@ -16,6 +16,7 @@
#include <linux/init.h>
#include <linux/err.h>
#include <linux/clk.h>
+#include <linux/clkdev.h>
#include <asm/div64.h>
@@ -31,92 +32,132 @@ struct clk {
unsigned long rate;
};
-static struct clk ath79_ref_clk;
-static struct clk ath79_cpu_clk;
-static struct clk ath79_ddr_clk;
-static struct clk ath79_ahb_clk;
-static struct clk ath79_wdt_clk;
-static struct clk ath79_uart_clk;
+static void __init ath79_add_sys_clkdev(const char *id, unsigned long rate)
+{
+ struct clk *clk;
+ int err;
+
+ clk = kzalloc(sizeof(*clk), GFP_KERNEL);
+ if (!clk)
+ panic("failed to allocate %s clock structure", id);
+
+ clk->rate = rate;
+
+ err = clk_register_clkdev(clk, id, NULL);
+ if (err)
+ panic("unable to register %s clock device", id);
+}
static void __init ar71xx_clocks_init(void)
{
+ unsigned long ref_rate;
+ unsigned long cpu_rate;
+ unsigned long ddr_rate;
+ unsigned long ahb_rate;
u32 pll;
u32 freq;
u32 div;
- ath79_ref_clk.rate = AR71XX_BASE_FREQ;
+ ref_rate = AR71XX_BASE_FREQ;
pll = ath79_pll_rr(AR71XX_PLL_REG_CPU_CONFIG);
div = ((pll >> AR71XX_PLL_DIV_SHIFT) & AR71XX_PLL_DIV_MASK) + 1;
- freq = div * ath79_ref_clk.rate;
+ freq = div * ref_rate;
div = ((pll >> AR71XX_CPU_DIV_SHIFT) & AR71XX_CPU_DIV_MASK) + 1;
- ath79_cpu_clk.rate = freq / div;
+ cpu_rate = freq / div;
div = ((pll >> AR71XX_DDR_DIV_SHIFT) & AR71XX_DDR_DIV_MASK) + 1;
- ath79_ddr_clk.rate = freq / div;
+ ddr_rate = freq / div;
div = (((pll >> AR71XX_AHB_DIV_SHIFT) & AR71XX_AHB_DIV_MASK) + 1) * 2;
- ath79_ahb_clk.rate = ath79_cpu_clk.rate / div;
+ ahb_rate = cpu_rate / div;
+
+ ath79_add_sys_clkdev("ref", ref_rate);
+ ath79_add_sys_clkdev("cpu", cpu_rate);
+ ath79_add_sys_clkdev("ddr", ddr_rate);
+ ath79_add_sys_clkdev("ahb", ahb_rate);
- ath79_wdt_clk.rate = ath79_ahb_clk.rate;
- ath79_uart_clk.rate = ath79_ahb_clk.rate;
+ clk_add_alias("wdt", NULL, "ahb", NULL);
+ clk_add_alias("uart", NULL, "ahb", NULL);
}
static void __init ar724x_clocks_init(void)
{
+ unsigned long ref_rate;
+ unsigned long cpu_rate;
+ unsigned long ddr_rate;
+ unsigned long ahb_rate;
u32 pll;
u32 freq;
u32 div;
- ath79_ref_clk.rate = AR724X_BASE_FREQ;
+ ref_rate = AR724X_BASE_FREQ;
pll = ath79_pll_rr(AR724X_PLL_REG_CPU_CONFIG);
div = ((pll >> AR724X_PLL_DIV_SHIFT) & AR724X_PLL_DIV_MASK);
- freq = div * ath79_ref_clk.rate;
+ freq = div * ref_rate;
div = ((pll >> AR724X_PLL_REF_DIV_SHIFT) & AR724X_PLL_REF_DIV_MASK);
freq *= div;
- ath79_cpu_clk.rate = freq;
+ cpu_rate = freq;
div = ((pll >> AR724X_DDR_DIV_SHIFT) & AR724X_DDR_DIV_MASK) + 1;
- ath79_ddr_clk.rate = freq / div;
+ ddr_rate = freq / div;
div = (((pll >> AR724X_AHB_DIV_SHIFT) & AR724X_AHB_DIV_MASK) + 1) * 2;
- ath79_ahb_clk.rate = ath79_cpu_clk.rate / div;
+ ahb_rate = cpu_rate / div;
+
+ ath79_add_sys_clkdev("ref", ref_rate);
+ ath79_add_sys_clkdev("cpu", cpu_rate);
+ ath79_add_sys_clkdev("ddr", ddr_rate);
+ ath79_add_sys_clkdev("ahb", ahb_rate);
- ath79_wdt_clk.rate = ath79_ahb_clk.rate;
- ath79_uart_clk.rate = ath79_ahb_clk.rate;
+ clk_add_alias("wdt", NULL, "ahb", NULL);
+ clk_add_alias("uart", NULL, "ahb", NULL);
}
static void __init ar913x_clocks_init(void)
{
+ unsigned long ref_rate;
+ unsigned long cpu_rate;
+ unsigned long ddr_rate;
+ unsigned long ahb_rate;
u32 pll;
u32 freq;
u32 div;
- ath79_ref_clk.rate = AR913X_BASE_FREQ;
+ ref_rate = AR913X_BASE_FREQ;
pll = ath79_pll_rr(AR913X_PLL_REG_CPU_CONFIG);
div = ((pll >> AR913X_PLL_DIV_SHIFT) & AR913X_PLL_DIV_MASK);
- freq = div * ath79_ref_clk.rate;
+ freq = div * ref_rate;
- ath79_cpu_clk.rate = freq;
+ cpu_rate = freq;
div = ((pll >> AR913X_DDR_DIV_SHIFT) & AR913X_DDR_DIV_MASK) + 1;
- ath79_ddr_clk.rate = freq / div;
+ ddr_rate = freq / div;
div = (((pll >> AR913X_AHB_DIV_SHIFT) & AR913X_AHB_DIV_MASK) + 1) * 2;
- ath79_ahb_clk.rate = ath79_cpu_clk.rate / div;
+ ahb_rate = cpu_rate / div;
- ath79_wdt_clk.rate = ath79_ahb_clk.rate;
- ath79_uart_clk.rate = ath79_ahb_clk.rate;
+ ath79_add_sys_clkdev("ref", ref_rate);
+ ath79_add_sys_clkdev("cpu", cpu_rate);
+ ath79_add_sys_clkdev("ddr", ddr_rate);
+ ath79_add_sys_clkdev("ahb", ahb_rate);
+
+ clk_add_alias("wdt", NULL, "ahb", NULL);
+ clk_add_alias("uart", NULL, "ahb", NULL);
}
static void __init ar933x_clocks_init(void)
{
+ unsigned long ref_rate;
+ unsigned long cpu_rate;
+ unsigned long ddr_rate;
+ unsigned long ahb_rate;
u32 clock_ctrl;
u32 cpu_config;
u32 freq;
@@ -124,21 +165,21 @@ static void __init ar933x_clocks_init(void)
t = ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP);
if (t & AR933X_BOOTSTRAP_REF_CLK_40)
- ath79_ref_clk.rate = (40 * 1000 * 1000);
+ ref_rate = (40 * 1000 * 1000);
else
- ath79_ref_clk.rate = (25 * 1000 * 1000);
+ ref_rate = (25 * 1000 * 1000);
clock_ctrl = ath79_pll_rr(AR933X_PLL_CLOCK_CTRL_REG);
if (clock_ctrl & AR933X_PLL_CLOCK_CTRL_BYPASS) {
- ath79_cpu_clk.rate = ath79_ref_clk.rate;
- ath79_ahb_clk.rate = ath79_ref_clk.rate;
- ath79_ddr_clk.rate = ath79_ref_clk.rate;
+ cpu_rate = ref_rate;
+ ahb_rate = ref_rate;
+ ddr_rate = ref_rate;
} else {
cpu_config = ath79_pll_rr(AR933X_PLL_CPU_CONFIG_REG);
t = (cpu_config >> AR933X_PLL_CPU_CONFIG_REFDIV_SHIFT) &
AR933X_PLL_CPU_CONFIG_REFDIV_MASK;
- freq = ath79_ref_clk.rate / t;
+ freq = ref_rate / t;
t = (cpu_config >> AR933X_PLL_CPU_CONFIG_NINT_SHIFT) &
AR933X_PLL_CPU_CONFIG_NINT_MASK;
@@ -153,19 +194,24 @@ static void __init ar933x_clocks_init(void)
t = ((clock_ctrl >> AR933X_PLL_CLOCK_CTRL_CPU_DIV_SHIFT) &
AR933X_PLL_CLOCK_CTRL_CPU_DIV_MASK) + 1;
- ath79_cpu_clk.rate = freq / t;
+ cpu_rate = freq / t;
t = ((clock_ctrl >> AR933X_PLL_CLOCK_CTRL_DDR_DIV_SHIFT) &
AR933X_PLL_CLOCK_CTRL_DDR_DIV_MASK) + 1;
- ath79_ddr_clk.rate = freq / t;
+ ddr_rate = freq / t;
t = ((clock_ctrl >> AR933X_PLL_CLOCK_CTRL_AHB_DIV_SHIFT) &
AR933X_PLL_CLOCK_CTRL_AHB_DIV_MASK) + 1;
- ath79_ahb_clk.rate = freq / t;
+ ahb_rate = freq / t;
}
- ath79_wdt_clk.rate = ath79_ref_clk.rate;
- ath79_uart_clk.rate = ath79_ref_clk.rate;
+ ath79_add_sys_clkdev("ref", ref_rate);
+ ath79_add_sys_clkdev("cpu", cpu_rate);
+ ath79_add_sys_clkdev("ddr", ddr_rate);
+ ath79_add_sys_clkdev("ahb", ahb_rate);
+
+ clk_add_alias("wdt", NULL, "ahb", NULL);
+ clk_add_alias("uart", NULL, "ref", NULL);
}
static u32 __init ar934x_get_pll_freq(u32 ref, u32 ref_div, u32 nint, u32 nfrac,
@@ -174,12 +220,12 @@ static u32 __init ar934x_get_pll_freq(u32 ref, u32 ref_div, u32 nint, u32 nfrac,
u64 t;
u32 ret;
- t = ath79_ref_clk.rate;
+ t = ref;
t *= nint;
do_div(t, ref_div);
ret = t;
- t = ath79_ref_clk.rate;
+ t = ref;
t *= nfrac;
do_div(t, ref_div * frac);
ret += t;
@@ -190,6 +236,10 @@ static u32 __init ar934x_get_pll_freq(u32 ref, u32 ref_div, u32 nint, u32 nfrac,
static void __init ar934x_clocks_init(void)
{
+ unsigned long ref_rate;
+ unsigned long cpu_rate;
+ unsigned long ddr_rate;
+ unsigned long ahb_rate;
u32 pll, out_div, ref_div, nint, nfrac, frac, clk_ctrl, postdiv;
u32 cpu_pll, ddr_pll;
u32 bootstrap;
@@ -199,9 +249,9 @@ static void __init ar934x_clocks_init(void)
bootstrap = ath79_reset_rr(AR934X_RESET_REG_BOOTSTRAP);
if (bootstrap & AR934X_BOOTSTRAP_REF_CLK_40)
- ath79_ref_clk.rate = 40 * 1000 * 1000;
+ ref_rate = 40 * 1000 * 1000;
else
- ath79_ref_clk.rate = 25 * 1000 * 1000;
+ ref_rate = 25 * 1000 * 1000;
pll = __raw_readl(dpll_base + AR934X_SRIF_CPU_DPLL2_REG);
if (pll & AR934X_SRIF_DPLL2_LOCAL_PLL) {
@@ -227,7 +277,7 @@ static void __init ar934x_clocks_init(void)
frac = 1 << 6;
}
- cpu_pll = ar934x_get_pll_freq(ath79_ref_clk.rate, ref_div, nint,
+ cpu_pll = ar934x_get_pll_freq(ref_rate, ref_div, nint,
nfrac, frac, out_div);
pll = __raw_readl(dpll_base + AR934X_SRIF_DDR_DPLL2_REG);
@@ -254,7 +304,7 @@ static void __init ar934x_clocks_init(void)
frac = 1 << 10;
}
- ddr_pll = ar934x_get_pll_freq(ath79_ref_clk.rate, ref_div, nint,
+ ddr_pll = ar934x_get_pll_freq(ref_rate, ref_div, nint,
nfrac, frac, out_div);
clk_ctrl = ath79_pll_rr(AR934X_PLL_CPU_DDR_CLK_CTRL_REG);
@@ -263,49 +313,58 @@ static void __init ar934x_clocks_init(void)
AR934X_PLL_CPU_DDR_CLK_CTRL_CPU_POST_DIV_MASK;
if (clk_ctrl & AR934X_PLL_CPU_DDR_CLK_CTRL_CPU_PLL_BYPASS)
- ath79_cpu_clk.rate = ath79_ref_clk.rate;
+ cpu_rate = ref_rate;
else if (clk_ctrl & AR934X_PLL_CPU_DDR_CLK_CTRL_CPUCLK_FROM_CPUPLL)
- ath79_cpu_clk.rate = cpu_pll / (postdiv + 1);
+ cpu_rate = cpu_pll / (postdiv + 1);
else
- ath79_cpu_clk.rate = ddr_pll / (postdiv + 1);
+ cpu_rate = ddr_pll / (postdiv + 1);
postdiv = (clk_ctrl >> AR934X_PLL_CPU_DDR_CLK_CTRL_DDR_POST_DIV_SHIFT) &
AR934X_PLL_CPU_DDR_CLK_CTRL_DDR_POST_DIV_MASK;
if (clk_ctrl & AR934X_PLL_CPU_DDR_CLK_CTRL_DDR_PLL_BYPASS)
- ath79_ddr_clk.rate = ath79_ref_clk.rate;
+ ddr_rate = ref_rate;
else if (clk_ctrl & AR934X_PLL_CPU_DDR_CLK_CTRL_DDRCLK_FROM_DDRPLL)
- ath79_ddr_clk.rate = ddr_pll / (postdiv + 1);
+ ddr_rate = ddr_pll / (postdiv + 1);
else
- ath79_ddr_clk.rate = cpu_pll / (postdiv + 1);
+ ddr_rate = cpu_pll / (postdiv + 1);
postdiv = (clk_ctrl >> AR934X_PLL_CPU_DDR_CLK_CTRL_AHB_POST_DIV_SHIFT) &
AR934X_PLL_CPU_DDR_CLK_CTRL_AHB_POST_DIV_MASK;
if (clk_ctrl & AR934X_PLL_CPU_DDR_CLK_CTRL_AHB_PLL_BYPASS)
- ath79_ahb_clk.rate = ath79_ref_clk.rate;
+ ahb_rate = ref_rate;
else if (clk_ctrl & AR934X_PLL_CPU_DDR_CLK_CTRL_AHBCLK_FROM_DDRPLL)
- ath79_ahb_clk.rate = ddr_pll / (postdiv + 1);
+ ahb_rate = ddr_pll / (postdiv + 1);
else
- ath79_ahb_clk.rate = cpu_pll / (postdiv + 1);
+ ahb_rate = cpu_pll / (postdiv + 1);
+
+ ath79_add_sys_clkdev("ref", ref_rate);
+ ath79_add_sys_clkdev("cpu", cpu_rate);
+ ath79_add_sys_clkdev("ddr", ddr_rate);
+ ath79_add_sys_clkdev("ahb", ahb_rate);
- ath79_wdt_clk.rate = ath79_ref_clk.rate;
- ath79_uart_clk.rate = ath79_ref_clk.rate;
+ clk_add_alias("wdt", NULL, "ref", NULL);
+ clk_add_alias("uart", NULL, "ref", NULL);
iounmap(dpll_base);
}
static void __init qca955x_clocks_init(void)
{
+ unsigned long ref_rate;
+ unsigned long cpu_rate;
+ unsigned long ddr_rate;
+ unsigned long ahb_rate;
u32 pll, out_div, ref_div, nint, frac, clk_ctrl, postdiv;
u32 cpu_pll, ddr_pll;
u32 bootstrap;
bootstrap = ath79_reset_rr(QCA955X_RESET_REG_BOOTSTRAP);
if (bootstrap & QCA955X_BOOTSTRAP_REF_CLK_40)
- ath79_ref_clk.rate = 40 * 1000 * 1000;
+ ref_rate = 40 * 1000 * 1000;
else
- ath79_ref_clk.rate = 25 * 1000 * 1000;
+ ref_rate = 25 * 1000 * 1000;
pll = ath79_pll_rr(QCA955X_PLL_CPU_CONFIG_REG);
out_div = (pll >> QCA955X_PLL_CPU_CONFIG_OUTDIV_SHIFT) &
@@ -317,8 +376,8 @@ static void __init qca955x_clocks_init(void)
frac = (pll >> QCA955X_PLL_CPU_CONFIG_NFRAC_SHIFT) &
QCA955X_PLL_CPU_CONFIG_NFRAC_MASK;
- cpu_pll = nint * ath79_ref_clk.rate / ref_div;
- cpu_pll += frac * ath79_ref_clk.rate / (ref_div * (1 << 6));
+ cpu_pll = nint * ref_rate / ref_div;
+ cpu_pll += frac * ref_rate / (ref_div * (1 << 6));
cpu_pll /= (1 << out_div);
pll = ath79_pll_rr(QCA955X_PLL_DDR_CONFIG_REG);
@@ -331,8 +390,8 @@ static void __init qca955x_clocks_init(void)
frac = (pll >> QCA955X_PLL_DDR_CONFIG_NFRAC_SHIFT) &
QCA955X_PLL_DDR_CONFIG_NFRAC_MASK;
- ddr_pll = nint * ath79_ref_clk.rate / ref_div;
- ddr_pll += frac * ath79_ref_clk.rate / (ref_div * (1 << 10));
+ ddr_pll = nint * ref_rate / ref_div;
+ ddr_pll += frac * ref_rate / (ref_div * (1 << 10));
ddr_pll /= (1 << out_div);
clk_ctrl = ath79_pll_rr(QCA955X_PLL_CLK_CTRL_REG);
@@ -341,34 +400,39 @@ static void __init qca955x_clocks_init(void)
QCA955X_PLL_CLK_CTRL_CPU_POST_DIV_MASK;
if (clk_ctrl & QCA955X_PLL_CLK_CTRL_CPU_PLL_BYPASS)
- ath79_cpu_clk.rate = ath79_ref_clk.rate;
+ cpu_rate = ref_rate;
else if (clk_ctrl & QCA955X_PLL_CLK_CTRL_CPUCLK_FROM_CPUPLL)
- ath79_cpu_clk.rate = ddr_pll / (postdiv + 1);
+ cpu_rate = ddr_pll / (postdiv + 1);
else
- ath79_cpu_clk.rate = cpu_pll / (postdiv + 1);
+ cpu_rate = cpu_pll / (postdiv + 1);
postdiv = (clk_ctrl >> QCA955X_PLL_CLK_CTRL_DDR_POST_DIV_SHIFT) &
QCA955X_PLL_CLK_CTRL_DDR_POST_DIV_MASK;
if (clk_ctrl & QCA955X_PLL_CLK_CTRL_DDR_PLL_BYPASS)
- ath79_ddr_clk.rate = ath79_ref_clk.rate;
+ ddr_rate = ref_rate;
else if (clk_ctrl & QCA955X_PLL_CLK_CTRL_DDRCLK_FROM_DDRPLL)
- ath79_ddr_clk.rate = cpu_pll / (postdiv + 1);
+ ddr_rate = cpu_pll / (postdiv + 1);
else
- ath79_ddr_clk.rate = ddr_pll / (postdiv + 1);
+ ddr_rate = ddr_pll / (postdiv + 1);
postdiv = (clk_ctrl >> QCA955X_PLL_CLK_CTRL_AHB_POST_DIV_SHIFT) &
QCA955X_PLL_CLK_CTRL_AHB_POST_DIV_MASK;
if (clk_ctrl & QCA955X_PLL_CLK_CTRL_AHB_PLL_BYPASS)
- ath79_ahb_clk.rate = ath79_ref_clk.rate;
+ ahb_rate = ref_rate;
else if (clk_ctrl & QCA955X_PLL_CLK_CTRL_AHBCLK_FROM_DDRPLL)
- ath79_ahb_clk.rate = ddr_pll / (postdiv + 1);
+ ahb_rate = ddr_pll / (postdiv + 1);
else
- ath79_ahb_clk.rate = cpu_pll / (postdiv + 1);
+ ahb_rate = cpu_pll / (postdiv + 1);
- ath79_wdt_clk.rate = ath79_ref_clk.rate;
- ath79_uart_clk.rate = ath79_ref_clk.rate;
+ ath79_add_sys_clkdev("ref", ref_rate);
+ ath79_add_sys_clkdev("cpu", cpu_rate);
+ ath79_add_sys_clkdev("ddr", ddr_rate);
+ ath79_add_sys_clkdev("ahb", ahb_rate);
+
+ clk_add_alias("wdt", NULL, "ref", NULL);
+ clk_add_alias("uart", NULL, "ref", NULL);
}
void __init ath79_clocks_init(void)
@@ -387,46 +451,27 @@ void __init ath79_clocks_init(void)
qca955x_clocks_init();
else
BUG();
-
- pr_info("Clocks: CPU:%lu.%03luMHz, DDR:%lu.%03luMHz, AHB:%lu.%03luMHz, "
- "Ref:%lu.%03luMHz",
- ath79_cpu_clk.rate / 1000000,
- (ath79_cpu_clk.rate / 1000) % 1000,
- ath79_ddr_clk.rate / 1000000,
- (ath79_ddr_clk.rate / 1000) % 1000,
- ath79_ahb_clk.rate / 1000000,
- (ath79_ahb_clk.rate / 1000) % 1000,
- ath79_ref_clk.rate / 1000000,
- (ath79_ref_clk.rate / 1000) % 1000);
}
-/*
- * Linux clock API
- */
-struct clk *clk_get(struct device *dev, const char *id)
+unsigned long __init
+ath79_get_sys_clk_rate(const char *id)
{
- if (!strcmp(id, "ref"))
- return &ath79_ref_clk;
-
- if (!strcmp(id, "cpu"))
- return &ath79_cpu_clk;
-
- if (!strcmp(id, "ddr"))
- return &ath79_ddr_clk;
-
- if (!strcmp(id, "ahb"))
- return &ath79_ahb_clk;
+ struct clk *clk;
+ unsigned long rate;
- if (!strcmp(id, "wdt"))
- return &ath79_wdt_clk;
+ clk = clk_get(NULL, id);
+ if (IS_ERR(clk))
+ panic("unable to get %s clock, err=%d", id, (int) PTR_ERR(clk));
- if (!strcmp(id, "uart"))
- return &ath79_uart_clk;
+ rate = clk_get_rate(clk);
+ clk_put(clk);
- return ERR_PTR(-ENOENT);
+ return rate;
}
-EXPORT_SYMBOL(clk_get);
+/*
+ * Linux clock API
+ */
int clk_enable(struct clk *clk)
{
return 0;
@@ -443,8 +488,3 @@ unsigned long clk_get_rate(struct clk *clk)
return clk->rate;
}
EXPORT_SYMBOL(clk_get_rate);
-
-void clk_put(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_put);
diff --git a/arch/mips/ath79/common.h b/arch/mips/ath79/common.h
index 561906c2345..648d2dafbc5 100644
--- a/arch/mips/ath79/common.h
+++ b/arch/mips/ath79/common.h
@@ -21,6 +21,8 @@
#define ATH79_MEM_SIZE_MAX (128 * 1024 * 1024)
void ath79_clocks_init(void);
+unsigned long ath79_get_sys_clk_rate(const char *id);
+
void ath79_ddr_wb_flush(unsigned int reg);
void ath79_gpio_function_enable(u32 mask);
diff --git a/arch/mips/ath79/dev-common.c b/arch/mips/ath79/dev-common.c
index a3a2741d068..c3b04c929f2 100644
--- a/arch/mips/ath79/dev-common.c
+++ b/arch/mips/ath79/dev-common.c
@@ -81,21 +81,19 @@ static struct platform_device ar933x_uart_device = {
void __init ath79_register_uart(void)
{
- struct clk *clk;
+ unsigned long uart_clk_rate;
- clk = clk_get(NULL, "uart");
- if (IS_ERR(clk))
- panic("unable to get UART clock, err=%ld", PTR_ERR(clk));
+ uart_clk_rate = ath79_get_sys_clk_rate("uart");
if (soc_is_ar71xx() ||
soc_is_ar724x() ||
soc_is_ar913x() ||
soc_is_ar934x() ||
soc_is_qca955x()) {
- ath79_uart_data[0].uartclk = clk_get_rate(clk);
+ ath79_uart_data[0].uartclk = uart_clk_rate;
platform_device_register(&ath79_uart_device);
} else if (soc_is_ar933x()) {
- ar933x_uart_data.uartclk = clk_get_rate(clk);
+ ar933x_uart_data.uartclk = uart_clk_rate;
platform_device_register(&ar933x_uart_device);
} else {
BUG();
diff --git a/arch/mips/ath79/setup.c b/arch/mips/ath79/setup.c
index 80f4ecd42b0..64807a4809d 100644
--- a/arch/mips/ath79/setup.c
+++ b/arch/mips/ath79/setup.c
@@ -200,7 +200,6 @@ void __init plat_mem_setup(void)
ath79_detect_sys_type();
detect_memory_region(0, ATH79_MEM_SIZE_MIN, ATH79_MEM_SIZE_MAX);
- ath79_clocks_init();
_machine_restart = ath79_restart;
_machine_halt = ath79_halt;
@@ -209,13 +208,25 @@ void __init plat_mem_setup(void)
void __init plat_time_init(void)
{
- struct clk *clk;
+ unsigned long cpu_clk_rate;
+ unsigned long ahb_clk_rate;
+ unsigned long ddr_clk_rate;
+ unsigned long ref_clk_rate;
+
+ ath79_clocks_init();
+
+ cpu_clk_rate = ath79_get_sys_clk_rate("cpu");
+ ahb_clk_rate = ath79_get_sys_clk_rate("ahb");
+ ddr_clk_rate = ath79_get_sys_clk_rate("ddr");
+ ref_clk_rate = ath79_get_sys_clk_rate("ref");
- clk = clk_get(NULL, "cpu");
- if (IS_ERR(clk))
- panic("unable to get CPU clock, err=%ld", PTR_ERR(clk));
+ pr_info("Clocks: CPU:%lu.%03luMHz, DDR:%lu.%03luMHz, AHB:%lu.%03luMHz, Ref:%lu.%03luMHz",
+ cpu_clk_rate / 1000000, (cpu_clk_rate / 1000) % 1000,
+ ddr_clk_rate / 1000000, (ddr_clk_rate / 1000) % 1000,
+ ahb_clk_rate / 1000000, (ahb_clk_rate / 1000) % 1000,
+ ref_clk_rate / 1000000, (ref_clk_rate / 1000) % 1000);
- mips_hpt_frequency = clk_get_rate(clk) / 2;
+ mips_hpt_frequency = cpu_clk_rate / 2;
}
static int __init ath79_setup(void)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-29 03:42:58 +0000