diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/phy/phy-ti-pipe3.c | 76 |
1 files changed, 55 insertions, 21 deletions
diff --git a/drivers/phy/phy-ti-pipe3.c b/drivers/phy/phy-ti-pipe3.c index 211703c87fb9..f141237131c3 100644 --- a/drivers/phy/phy-ti-pipe3.c +++ b/drivers/phy/phy-ti-pipe3.c @@ -66,6 +66,11 @@ struct pipe3_dpll_params { u32 mf; }; +struct pipe3_dpll_map { + unsigned long rate; + struct pipe3_dpll_params params; +}; + struct ti_pipe3 { void __iomem *pll_ctrl_base; struct device *dev; @@ -73,20 +78,27 @@ struct ti_pipe3 { struct clk *wkupclk; struct clk *sys_clk; struct clk *refclk; + struct pipe3_dpll_map *dpll_map; }; -struct pipe3_dpll_map { - unsigned long rate; - struct pipe3_dpll_params params; -}; - -static struct pipe3_dpll_map dpll_map[] = { +static struct pipe3_dpll_map dpll_map_usb[] = { {12000000, {1250, 5, 4, 20, 0} }, /* 12 MHz */ {16800000, {3125, 20, 4, 20, 0} }, /* 16.8 MHz */ {19200000, {1172, 8, 4, 20, 65537} }, /* 19.2 MHz */ {20000000, {1000, 7, 4, 10, 0} }, /* 20 MHz */ {26000000, {1250, 12, 4, 20, 0} }, /* 26 MHz */ {38400000, {3125, 47, 4, 20, 92843} }, /* 38.4 MHz */ + { }, /* Terminator */ +}; + +static struct pipe3_dpll_map dpll_map_sata[] = { + {12000000, {1000, 7, 4, 6, 0} }, /* 12 MHz */ + {16800000, {714, 7, 4, 6, 0} }, /* 16.8 MHz */ + {19200000, {625, 7, 4, 6, 0} }, /* 19.2 MHz */ + {20000000, {600, 7, 4, 6, 0} }, /* 20 MHz */ + {26000000, {461, 7, 4, 6, 0} }, /* 26 MHz */ + {38400000, {312, 7, 4, 6, 0} }, /* 38.4 MHz */ + { }, /* Terminator */ }; static inline u32 ti_pipe3_readl(void __iomem *addr, unsigned offset) @@ -100,15 +112,20 @@ static inline void ti_pipe3_writel(void __iomem *addr, unsigned offset, __raw_writel(data, addr + offset); } -static struct pipe3_dpll_params *ti_pipe3_get_dpll_params(unsigned long rate) +static struct pipe3_dpll_params *ti_pipe3_get_dpll_params(struct ti_pipe3 *phy) { - int i; + unsigned long rate; + struct pipe3_dpll_map *dpll_map = phy->dpll_map; - for (i = 0; i < ARRAY_SIZE(dpll_map); i++) { - if (rate == dpll_map[i].rate) - return &dpll_map[i].params; + rate = clk_get_rate(phy->sys_clk); + + for (; dpll_map->rate; dpll_map++) { + if (rate == dpll_map->rate) + return &dpll_map->params; } + dev_err(phy->dev, "No DPLL configuration for %lu Hz SYS CLK\n", rate); + return NULL; } @@ -182,16 +199,11 @@ static void ti_pipe3_dpll_relock(struct ti_pipe3 *phy) static int ti_pipe3_dpll_lock(struct ti_pipe3 *phy) { u32 val; - unsigned long rate; struct pipe3_dpll_params *dpll_params; - rate = clk_get_rate(phy->sys_clk); - dpll_params = ti_pipe3_get_dpll_params(rate); - if (!dpll_params) { - dev_err(phy->dev, - "No DPLL configuration for %lu Hz SYS CLK\n", rate); + dpll_params = ti_pipe3_get_dpll_params(phy); + if (!dpll_params) return -EINVAL; - } val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION1); val &= ~PLL_REGN_MASK; @@ -244,6 +256,10 @@ static struct phy_ops ops = { .owner = THIS_MODULE, }; +#ifdef CONFIG_OF +static const struct of_device_id ti_pipe3_id_table[]; +#endif + static int ti_pipe3_probe(struct platform_device *pdev) { struct ti_pipe3 *phy; @@ -253,8 +269,10 @@ static int ti_pipe3_probe(struct platform_device *pdev) struct device_node *node = pdev->dev.of_node; struct device_node *control_node; struct platform_device *control_pdev; + const struct of_device_id *match; - if (!node) + match = of_match_device(of_match_ptr(ti_pipe3_id_table), &pdev->dev); + if (!match) return -EINVAL; phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL); @@ -263,6 +281,12 @@ static int ti_pipe3_probe(struct platform_device *pdev) return -ENOMEM; } + phy->dpll_map = (struct pipe3_dpll_map *)match->data; + if (!phy->dpll_map) { + dev_err(&pdev->dev, "no DPLL data\n"); + return -EINVAL; + } + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pll_ctrl"); phy->pll_ctrl_base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(phy->pll_ctrl_base)) @@ -388,8 +412,18 @@ static const struct dev_pm_ops ti_pipe3_pm_ops = { #ifdef CONFIG_OF static const struct of_device_id ti_pipe3_id_table[] = { - { .compatible = "ti,phy-usb3" }, - { .compatible = "ti,omap-usb3" }, + { + .compatible = "ti,phy-usb3", + .data = dpll_map_usb, + }, + { + .compatible = "ti,omap-usb3", + .data = dpll_map_usb, + }, + { + .compatible = "ti,phy-pipe3-sata", + .data = dpll_map_sata, + }, {} }; MODULE_DEVICE_TABLE(of, ti_pipe3_id_table); |