Adding clocks specific to DM355
Signed-off-by: Sandeep Paulraj <[EMAIL PROTECTED]>
---
arch/arm/mach-davinci/clock.c | 113 +++++++++++++++++++++++++++++++++++++++++
arch/arm/mach-davinci/clock.h | 1 +
arch/arm/mach-davinci/time.c | 2 +
3 files changed, 116 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-davinci/clock.c b/arch/arm/mach-davinci/clock.c
index 28acbc3..7479a62 100644
--- a/arch/arm/mach-davinci/clock.c
+++ b/arch/arm/mach-davinci/clock.c
@@ -290,6 +290,108 @@ static struct clk davinci_dm646x_clks[] = {
.usecount = 1,
},
};
+static struct clk davinci_dm355_clks[] = {
+ {
+ .name = "ARMCLK",
+ .rate = &armrate,
+ .lpsc = -1,
+ .flags = ALWAYS_ENABLED,
+ },
+ {
+ .name = "UART0",
+ .rate = &fixedrate,
+ .lpsc = DAVINCI_LPSC_UART0,
+ .usecount = 1,
+ },
+ {
+ .name = "UART1",
+ .rate = &fixedrate,
+ .lpsc = DAVINCI_LPSC_UART1,
+ .usecount = 1,
+ },
+ {
+ .name = "UART2",
+ .rate = &fixedrate,
+ .lpsc = DAVINCI_LPSC_UART2,
+ .usecount = 1,
+ },
+ {
+ .name = "EMACCLK",
+ .rate = &commonrate,
+ .lpsc = DAVINCI_LPSC_EMAC_WRAPPER,
+ },
+ {
+ .name = "I2CCLK",
+ .rate = &fixedrate,
+ .lpsc = DAVINCI_LPSC_I2C,
+ },
+ {
+ .name = "IDECLK",
+ .rate = &commonrate,
+ .lpsc = DAVINCI_LPSC_ATA,
+ },
+ {
+ .name = "McBSPCLK0",
+ .rate = &commonrate,
+ .lpsc = DAVINCI_LPSC_McBSP,
+ },
+ {
+ .name = "McBSPCLK1",
+ .rate = &commonrate,
+ .lpsc = DM355_LPSC_McBSP1,
+ },
+ {
+ .name = "MMCSDCLK0",
+ .rate = &commonrate,
+ .lpsc = DAVINCI_LPSC_MMC_SD,
+ },
+ {
+ .name = "MMCSDCLK1",
+ .rate = &commonrate,
+ .lpsc = DM355_LPSC_MMC_SD1,
+ },
+ {
+ .name = "SPICLK",
+ .rate = &commonrate,
+ .lpsc = DAVINCI_LPSC_SPI,
+ },
+ {
+ .name = "gpio",
+ .rate = &commonrate,
+ .lpsc = DAVINCI_LPSC_GPIO,
+ },
+ {
+ .name = "AEMIFCLK",
+ .rate = &commonrate,
+ .lpsc = DAVINCI_LPSC_AEMIF,
+ .usecount = 1,
+ },
+ {
+ .name = "PWM0_CLK",
+ .rate = &fixedrate,
+ .lpsc = DAVINCI_LPSC_PWM0,
+ },
+ {
+ .name = "PWM1_CLK",
+ .rate = &fixedrate,
+ .lpsc = DAVINCI_LPSC_PWM1,
+ },
+ {
+ .name = "PWM2_CLK",
+ .rate = &fixedrate,
+ .lpsc = DAVINCI_LPSC_PWM2,
+ },
+ {
+ .name = "PWM3_CLK",
+ .rate = &fixedrate,
+ .lpsc = DM355_LPSC_PWM3,
+ },
+ {
+ .name = "USBCLK",
+ .rate = &commonrate,
+ .lpsc = DAVINCI_LPSC_USB,
+ },
+};
#ifdef CONFIG_DAVINCI_RESET_CLOCKS
/*
@@ -335,6 +437,17 @@ int __init davinci_clk_init(void)
board_clks = davinci_dm646x_clks;
num_clks = ARRAY_SIZE(davinci_dm646x_clks);
+ } else if (cpu_is_davinci_dm355()) {
+ unsigned long postdiv;
+
+ postdiv = (davinci_readl(DAVINCI_PLL_CNTRL0_BASE + 0x128)
+ & 0x1f) + 1;
+
+ fixedrate = 24000000;
+ armrate = (pll_mult + 1) * (fixedrate / (16 * postdiv));
+ commonrate = armrate / 2;
+ board_clks = davinci_dm355_clks;
+ num_clks = ARRAY_SIZE(davinci_dm355_clks);
} else {
fixedrate = DM646X_OSC_FREQ;
armrate = (pll_mult + 1) * (fixedrate / 2);
diff --git a/arch/arm/mach-davinci/clock.h b/arch/arm/mach-davinci/clock.h
index 3689cd1..2b283b9 100644
--- a/arch/arm/mach-davinci/clock.h
+++ b/arch/arm/mach-davinci/clock.h
@@ -34,5 +34,6 @@ struct clk {
#define DM646X_OSC_FREQ 27000000
#define DM646X_AUX_OSC_FREQ 24000000
#define DM646X_CLOCK_TICK_RATE 148500000
+#define DM355_CLOCK_TICK_RATE 24000000
#endif
diff --git a/arch/arm/mach-davinci/time.c b/arch/arm/mach-davinci/time.c
index 91e235f..cc4cc82 100644
--- a/arch/arm/mach-davinci/time.c
+++ b/arch/arm/mach-davinci/time.c
@@ -314,6 +314,8 @@ static void __init davinci_timer_init(void)
davinci_clock_tick_rate = DM646X_OSC_FREQ;
else if (cpu_is_davinci_dm646x())
davinci_clock_tick_rate = DM646X_CLOCK_TICK_RATE;
+ else if (cpu_is_davinci_dm355())
+ davinci_clock_tick_rate = DM355_CLOCK_TICK_RATE;
/* setup clocksource */
clocksource_davinci.mult =
--
1.5.6.4
_______________________________________________
Davinci-linux-open-source mailing list
[email protected]
http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
