diff options
Diffstat (limited to 'arch/mips/loongson1/common')
-rw-r--r-- | arch/mips/loongson1/common/clock.c | 159 | ||||
-rw-r--r-- | arch/mips/loongson1/common/platform.c | 10 |
2 files changed, 8 insertions, 161 deletions
diff --git a/arch/mips/loongson1/common/clock.c b/arch/mips/loongson1/common/clock.c index 1bbbbec12085..07133defa148 100644 --- a/arch/mips/loongson1/common/clock.c +++ b/arch/mips/loongson1/common/clock.c @@ -7,175 +7,22 @@ * option) any later version. */ -#include <linux/module.h> -#include <linux/list.h> -#include <linux/mutex.h> #include <linux/clk.h> #include <linux/err.h> -#include <asm/clock.h> #include <asm/time.h> - -#include <loongson1.h> - -static LIST_HEAD(clocks); -static DEFINE_MUTEX(clocks_mutex); - -struct clk *clk_get(struct device *dev, const char *name) -{ - struct clk *c; - struct clk *ret = NULL; - - mutex_lock(&clocks_mutex); - list_for_each_entry(c, &clocks, node) { - if (!strcmp(c->name, name)) { - ret = c; - break; - } - } - mutex_unlock(&clocks_mutex); - - return ret; -} -EXPORT_SYMBOL(clk_get); - -int clk_enable(struct clk *clk) -{ - return 0; -} -EXPORT_SYMBOL(clk_enable); - -void clk_disable(struct clk *clk) -{ -} -EXPORT_SYMBOL(clk_disable); - -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); - -static void pll_clk_init(struct clk *clk) -{ - u32 pll; - - pll = __raw_readl(LS1X_CLK_PLL_FREQ); - clk->rate = (12 + (pll & 0x3f)) * 33 / 2 - + ((pll >> 8) & 0x3ff) * 33 / 1024 / 2; - clk->rate *= 1000000; -} - -static void cpu_clk_init(struct clk *clk) -{ - u32 pll, ctrl; - - pll = clk_get_rate(clk->parent); - ctrl = __raw_readl(LS1X_CLK_PLL_DIV) & DIV_CPU; - clk->rate = pll / (ctrl >> DIV_CPU_SHIFT); -} - -static void ddr_clk_init(struct clk *clk) -{ - u32 pll, ctrl; - - pll = clk_get_rate(clk->parent); - ctrl = __raw_readl(LS1X_CLK_PLL_DIV) & DIV_DDR; - clk->rate = pll / (ctrl >> DIV_DDR_SHIFT); -} - -static void dc_clk_init(struct clk *clk) -{ - u32 pll, ctrl; - - pll = clk_get_rate(clk->parent); - ctrl = __raw_readl(LS1X_CLK_PLL_DIV) & DIV_DC; - clk->rate = pll / (ctrl >> DIV_DC_SHIFT); -} - -static struct clk_ops pll_clk_ops = { - .init = pll_clk_init, -}; - -static struct clk_ops cpu_clk_ops = { - .init = cpu_clk_init, -}; - -static struct clk_ops ddr_clk_ops = { - .init = ddr_clk_init, -}; - -static struct clk_ops dc_clk_ops = { - .init = dc_clk_init, -}; - -static struct clk pll_clk = { - .name = "pll", - .ops = &pll_clk_ops, -}; - -static struct clk cpu_clk = { - .name = "cpu", - .parent = &pll_clk, - .ops = &cpu_clk_ops, -}; - -static struct clk ddr_clk = { - .name = "ddr", - .parent = &pll_clk, - .ops = &ddr_clk_ops, -}; - -static struct clk dc_clk = { - .name = "dc", - .parent = &pll_clk, - .ops = &dc_clk_ops, -}; - -int clk_register(struct clk *clk) -{ - mutex_lock(&clocks_mutex); - list_add(&clk->node, &clocks); - if (clk->ops->init) - clk->ops->init(clk); - mutex_unlock(&clocks_mutex); - - return 0; -} -EXPORT_SYMBOL(clk_register); - -static struct clk *ls1x_clks[] = { - &pll_clk, - &cpu_clk, - &ddr_clk, - &dc_clk, -}; - -int __init ls1x_clock_init(void) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(ls1x_clks); i++) - clk_register(ls1x_clks[i]); - - return 0; -} +#include <platform.h> void __init plat_time_init(void) { struct clk *clk; /* Initialize LS1X clocks */ - ls1x_clock_init(); + ls1x_clk_init(); /* setup mips r4k timer */ clk = clk_get(NULL, "cpu"); if (IS_ERR(clk)) - panic("unable to get dc clock, err=%ld", PTR_ERR(clk)); + panic("unable to get cpu clock, err=%ld", PTR_ERR(clk)); mips_hpt_frequency = clk_get_rate(clk) / 2; } diff --git a/arch/mips/loongson1/common/platform.c b/arch/mips/loongson1/common/platform.c index 0412ad61e290..69dad4cfaaf4 100644 --- a/arch/mips/loongson1/common/platform.c +++ b/arch/mips/loongson1/common/platform.c @@ -43,16 +43,17 @@ struct platform_device ls1x_uart_device = { }, }; -void __init ls1x_serial_setup(void) +void __init ls1x_serial_setup(struct platform_device *pdev) { struct clk *clk; struct plat_serial8250_port *p; - clk = clk_get(NULL, "dc"); + clk = clk_get(NULL, pdev->name); if (IS_ERR(clk)) - panic("unable to get dc clock, err=%ld", PTR_ERR(clk)); + panic("unable to get %s clock, err=%ld", + pdev->name, PTR_ERR(clk)); - for (p = ls1x_serial8250_port; p->flags != 0; ++p) + for (p = pdev->dev.platform_data; p->flags != 0; ++p) p->uartclk = clk_get_rate(clk); } @@ -71,7 +72,6 @@ static struct resource ls1x_eth0_resources[] = { }; static struct stmmac_mdio_bus_data ls1x_mdio_bus_data = { - .bus_id = 0, .phy_mask = 0, }; |