#include <linux/clk.h>
#include <asm/io.h>
+#include <asm/mach-types.h>
#include <asm/arch/cpu.h>
#include <asm/arch/usb.h>
*-------------------------------------------------------------------------*/
#ifdef CONFIG_OMAP_RESET_CLOCKS
-/*
- * Resets some clocks that may be left on from bootloader,
- * but leaves serial clocks on. See also omap_late_clk_reset().
- */
-static inline void omap1_early_clk_reset(void)
-{
- //omap_writel(0x3 << 29, MOD_CONF_CTRL_0);
-}
-static int __init omap1_late_clk_reset(void)
+static void __init omap1_clk_disable_unused(struct clk *clk)
{
- /* Turn off all unused clocks */
- struct clk *p;
__u32 regval32;
- /* USB_REQ_EN will be disabled later if necessary (usb_dc_ck) */
- regval32 = omap_readw(SOFT_REQ_REG) & (1 << 4);
- omap_writew(regval32, SOFT_REQ_REG);
- omap_writew(0, SOFT_REQ_REG2);
-
- list_for_each_entry(p, &clocks, node) {
- if (p->usecount > 0 || (p->flags & ALWAYS_ENABLED) ||
- p->enable_reg == 0)
- continue;
-
- /* Clocks in the DSP domain need api_ck. Just assume bootloader
- * has not enabled any DSP clocks */
- if ((u32)p->enable_reg == DSP_IDLECT2) {
- printk(KERN_INFO "Skipping reset check for DSP domain "
- "clock \"%s\"\n", p->name);
- continue;
- }
+ /* Clocks in the DSP domain need api_ck. Just assume bootloader
+ * has not enabled any DSP clocks */
+ if ((u32)clk->enable_reg == DSP_IDLECT2) {
+ printk(KERN_INFO "Skipping reset check for DSP domain "
+ "clock \"%s\"\n", clk->name);
+ return;
+ }
- /* Is the clock already disabled? */
- if (p->flags & ENABLE_REG_32BIT) {
- if (p->flags & VIRTUAL_IO_ADDRESS)
- regval32 = __raw_readl(p->enable_reg);
- else
- regval32 = omap_readl(p->enable_reg);
- } else {
- if (p->flags & VIRTUAL_IO_ADDRESS)
- regval32 = __raw_readw(p->enable_reg);
+ /* Is the clock already disabled? */
+ if (clk->flags & ENABLE_REG_32BIT) {
+ if (clk->flags & VIRTUAL_IO_ADDRESS)
+ regval32 = __raw_readl(clk->enable_reg);
else
- regval32 = omap_readw(p->enable_reg);
- }
-
- if ((regval32 & (1 << p->enable_bit)) == 0)
- continue;
+ regval32 = omap_readl(clk->enable_reg);
+ } else {
+ if (clk->flags & VIRTUAL_IO_ADDRESS)
+ regval32 = __raw_readw(clk->enable_reg);
+ else
+ regval32 = omap_readw(clk->enable_reg);
+ }
- /* FIXME: This clock seems to be necessary but no-one
- * has asked for its activation. */
- if (p == &tc2_ck // FIX: pm.c (SRAM), CCP, Camera
- || p == &ck_dpll1out.clk // FIX: SoSSI, SSR
- || p == &arm_gpio_ck // FIX: GPIO code for 1510
- ) {
- printk(KERN_INFO "FIXME: Clock \"%s\" seems unused\n",
- p->name);
- continue;
- }
+ if ((regval32 & (1 << clk->enable_bit)) == 0)
+ return;
- printk(KERN_INFO "Disabling unused clock \"%s\"... ", p->name);
- p->disable(p);
- printk(" done\n");
+ /* FIXME: This clock seems to be necessary but no-one
+ * has asked for its activation. */
+ if (clk == &tc2_ck // FIX: pm.c (SRAM), CCP, Camera
+ || clk == &ck_dpll1out.clk // FIX: SoSSI, SSR
+ || clk == &arm_gpio_ck // FIX: GPIO code for 1510
+ ) {
+ printk(KERN_INFO "FIXME: Clock \"%s\" seems unused\n",
+ clk->name);
+ return;
}
- return 0;
+ printk(KERN_INFO "Disabling unused clock \"%s\"... ", clk->name);
+ clk->disable(clk);
+ printk(" done\n");
}
-late_initcall(omap1_late_clk_reset);
#else
-#define omap1_early_clk_reset() {}
+#define omap1_clk_disable_unused NULL
#endif
static struct clk_functions omap1_clk_functions = {
.clk_disable = omap1_clk_disable,
.clk_round_rate = omap1_clk_round_rate,
.clk_set_rate = omap1_clk_set_rate,
+ .clk_disable_unused = omap1_clk_disable_unused,
};
int __init omap1_clk_init(void)
struct clk ** clkp;
const struct omap_clock_config *info;
int crystal_type = 0; /* Default 12 MHz */
+ u32 reg;
+
+ /* USB_REQ_EN will be disabled later if necessary (usb_dc_ck) */
+ reg = omap_readw(SOFT_REQ_REG) & (1 << 4);
+ omap_writew(reg, SOFT_REQ_REG);
+ omap_writew(0, SOFT_REQ_REG2);
- omap1_early_clk_reset();
clk_init(&omap1_clk_functions);
/* By default all idlect1 clocks are allowed to idle */
omap_writew(omap_readw(OMAP730_PCC_UPLD_CTRL) & ~0x1, OMAP730_PCC_UPLD_CTRL);
#endif
+ /* Amstrad Delta wants BCLK high when inactive */
+ if (machine_is_ams_delta())
+ omap_writel(omap_readl(ULPD_CLOCK_CTRL) |
+ (1 << SDW_MCLK_INV_BIT),
+ ULPD_CLOCK_CTRL);
+
/* Turn off DSP and ARM_TIMXO. Make sure ARM_INTHCK is not divided */
/* (on 730, bit 13 must not be cleared) */
if (cpu_is_omap730())
* Omap2 clock reset and init functions
*-------------------------------------------------------------------------*/
+#ifdef CONFIG_OMAP_RESET_CLOCKS
+static void __init omap2_clk_disable_unused(struct clk *clk)
+{
+ u32 regval32;
+
+ regval32 = __raw_readl(clk->enable_reg);
+ if ((regval32 & (1 << clk->enable_bit)) == 0)
+ return;
+
+ printk(KERN_INFO "Disabling unused clock \"%s\"\n", clk->name);
+ _omap2_clk_disable(clk);
+}
+#else
+#define omap2_clk_disable_unused NULL
+#endif
+
static struct clk_functions omap2_clk_functions = {
.clk_enable = omap2_clk_enable,
.clk_disable = omap2_clk_disable,
.clk_round_rate = omap2_clk_round_rate,
.clk_set_rate = omap2_clk_set_rate,
.clk_set_parent = omap2_clk_set_parent,
+ .clk_disable_unused = omap2_clk_disable_unused,
};
static void __init omap2_get_crystal_rate(struct clk *osc, struct clk *sys)
clk_set_rate(vclk, rate);
}
-#ifdef CONFIG_OMAP_RESET_CLOCKS
-static void __init omap2_disable_unused_clocks(void)
-{
- struct clk *ck;
- u32 regval32;
-
- list_for_each_entry(ck, &clocks, node) {
- if (ck->usecount > 0 || (ck->flags & ALWAYS_ENABLED) ||
- ck->enable_reg == 0)
- continue;
-
- regval32 = __raw_readl(ck->enable_reg);
- if ((regval32 & (1 << ck->enable_bit)) == 0)
- continue;
-
- printk(KERN_INFO "Disabling unused clock \"%s\"\n", ck->name);
- _omap2_clk_disable(ck);
- }
-}
-late_initcall(omap2_disable_unused_clocks);
-#endif
-
/*
* Switch the MPU rate if specified on cmdline.
* We cannot do this early until cmdline is parsed.
};
static struct clk mcspi1_ick = {
- .name = "mcspi1_ick",
+ .name = "mcspi_ick",
+ .id = 1,
.parent = &l4_ck,
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.enable_reg = (void __iomem *)&CM_ICLKEN1_CORE,
};
static struct clk mcspi1_fck = {
- .name = "mcspi1_fck",
+ .name = "mcspi_fck",
+ .id = 1,
.parent = &func_48m_ck,
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.enable_reg = (void __iomem *)&CM_FCLKEN1_CORE,
};
static struct clk mcspi2_ick = {
- .name = "mcspi2_ick",
+ .name = "mcspi_ick",
+ .id = 2,
.parent = &l4_ck,
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.enable_reg = (void __iomem *)&CM_ICLKEN1_CORE,
};
static struct clk mcspi2_fck = {
- .name = "mcspi2_fck",
+ .name = "mcspi_fck",
+ .id = 2,
.parent = &func_48m_ck,
.flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
.enable_reg = (void __iomem *)&CM_FCLKEN1_CORE,
};
static struct clk mcspi3_ick = {
- .name = "mcspi3_ick",
+ .name = "mcspi_ick",
+ .id = 3,
.parent = &l4_ck,
.flags = CLOCK_IN_OMAP243X,
.enable_reg = (void __iomem *)&CM_ICLKEN2_CORE,
};
static struct clk mcspi3_fck = {
- .name = "mcspi3_fck",
+ .name = "mcspi_fck",
+ .id = 3,
.parent = &func_48m_ck,
.flags = CLOCK_IN_OMAP243X,
.enable_reg = (void __iomem *)&CM_FCLKEN2_CORE,
projects / linux-2.6-omap-h63xx.git / commitdiff