#include "prm2xxx_3xxx.h"
#include "prm2xxx.h"
#include "prm3xxx.h"
+#include "prm33xx.h"
#include "prm44xx.h"
+#include "prm54xx.h"
+#include "prm7xx.h"
+#include "prcm43xx.h"
#include "common.h"
#include "clock.h"
#include "cm.h"
cpu_relax();
}
+/**
+ * omap_prm_clear_mod_irqs - clear wake-up events from PRCM interrupt
+ * @module: PRM module to clear wakeups from
+ * @regs: register to clear
+ * @wkst_mask: wkst bits to clear
+ *
+ * Clears any wakeup events for the module and register set defined.
+ * Uses SoC specific implementation to do the actual wakeup status
+ * clearing.
+ */
+int omap_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask)
+{
+ if (!prm_ll_data->clear_mod_irqs) {
+ WARN_ONCE(1, "prm: %s: no mapping function defined\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ return prm_ll_data->clear_mod_irqs(module, regs, wkst_mask);
+}
+
+/**
+ * omap_prm_vp_check_txdone - check voltage processor TX done status
+ *
+ * Checks if voltage processor transmission has been completed.
+ * Returns non-zero if a transmission has completed, 0 otherwise.
+ */
+u32 omap_prm_vp_check_txdone(u8 vp_id)
+{
+ if (!prm_ll_data->vp_check_txdone) {
+ WARN_ONCE(1, "prm: %s: no mapping function defined\n",
+ __func__);
+ return 0;
+ }
+
+ return prm_ll_data->vp_check_txdone(vp_id);
+}
+
+/**
+ * omap_prm_vp_clear_txdone - clears voltage processor TX done status
+ *
+ * Clears the status bit for completed voltage processor transmission
+ * returned by prm_vp_check_txdone.
+ */
+void omap_prm_vp_clear_txdone(u8 vp_id)
+{
+ if (!prm_ll_data->vp_clear_txdone) {
+ WARN_ONCE(1, "prm: %s: no mapping function defined\n",
+ __func__);
+ return;
+ }
+
+ prm_ll_data->vp_clear_txdone(vp_id);
+}
+
/**
* prm_register - register per-SoC low-level data with the PRM
* @pld: low-level per-SoC OMAP PRM data & function pointers to register
return 0;
}
-static const struct of_device_id omap_prcm_dt_match_table[] = {
- { .compatible = "ti,am3-prcm" },
- { .compatible = "ti,am3-scrm" },
- { .compatible = "ti,am4-prcm" },
- { .compatible = "ti,am4-scrm" },
- { .compatible = "ti,dm814-prcm" },
- { .compatible = "ti,dm814-scrm" },
- { .compatible = "ti,dm816-prcm" },
- { .compatible = "ti,dm816-scrm" },
- { .compatible = "ti,omap2-prcm" },
- { .compatible = "ti,omap2-scrm" },
- { .compatible = "ti,omap3-prm" },
- { .compatible = "ti,omap3-cm" },
- { .compatible = "ti,omap3-scrm" },
- { .compatible = "ti,omap4-cm1" },
- { .compatible = "ti,omap4-prm" },
- { .compatible = "ti,omap4-cm2" },
- { .compatible = "ti,omap4-scrm" },
- { .compatible = "ti,omap5-prm" },
- { .compatible = "ti,omap5-cm-core-aon" },
- { .compatible = "ti,omap5-scrm" },
- { .compatible = "ti,omap5-cm-core" },
- { .compatible = "ti,dra7-prm" },
- { .compatible = "ti,dra7-cm-core-aon" },
- { .compatible = "ti,dra7-cm-core" },
- { }
+#ifdef CONFIG_ARCH_OMAP2
+static struct omap_prcm_init_data omap2_prm_data __initdata = {
+ .index = TI_CLKM_PRM,
+ .init = omap2xxx_prm_init,
};
+#endif
+
+#ifdef CONFIG_ARCH_OMAP3
+static struct omap_prcm_init_data omap3_prm_data __initdata = {
+ .index = TI_CLKM_PRM,
+ .init = omap3xxx_prm_init,
-static struct clk_hw_omap memmap_dummy_ck = {
- .flags = MEMMAP_ADDRESSING,
+ /*
+ * IVA2 offset is a negative value, must offset the prm_base
+ * address by this to get it to positive
+ */
+ .offset = -OMAP3430_IVA2_MOD,
};
+#endif
-static u32 prm_clk_readl(void __iomem *reg)
-{
- return omap2_clk_readl(&memmap_dummy_ck, reg);
-}
+#if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_TI81XX)
+static struct omap_prcm_init_data am3_prm_data __initdata = {
+ .index = TI_CLKM_PRM,
+ .init = am33xx_prm_init,
+};
+#endif
+
+#ifdef CONFIG_ARCH_OMAP4
+static struct omap_prcm_init_data omap4_prm_data __initdata = {
+ .index = TI_CLKM_PRM,
+ .init = omap44xx_prm_init,
+ .device_inst_offset = OMAP4430_PRM_DEVICE_INST,
+ .flags = PRM_HAS_IO_WAKEUP | PRM_HAS_VOLTAGE | PRM_IRQ_DEFAULT,
+};
+#endif
+
+#ifdef CONFIG_SOC_OMAP5
+static struct omap_prcm_init_data omap5_prm_data __initdata = {
+ .index = TI_CLKM_PRM,
+ .init = omap44xx_prm_init,
+ .device_inst_offset = OMAP54XX_PRM_DEVICE_INST,
+ .flags = PRM_HAS_IO_WAKEUP | PRM_HAS_VOLTAGE,
+};
+#endif
+
+#ifdef CONFIG_SOC_DRA7XX
+static struct omap_prcm_init_data dra7_prm_data __initdata = {
+ .index = TI_CLKM_PRM,
+ .init = omap44xx_prm_init,
+ .device_inst_offset = DRA7XX_PRM_DEVICE_INST,
+ .flags = PRM_HAS_IO_WAKEUP,
+};
+#endif
-static void prm_clk_writel(u32 val, void __iomem *reg)
-{
- omap2_clk_writel(val, &memmap_dummy_ck, reg);
-}
+#ifdef CONFIG_SOC_AM43XX
+static struct omap_prcm_init_data am4_prm_data __initdata = {
+ .index = TI_CLKM_PRM,
+ .init = omap44xx_prm_init,
+ .device_inst_offset = AM43XX_PRM_DEVICE_INST,
+};
+#endif
-static struct ti_clk_ll_ops omap_clk_ll_ops = {
- .clk_readl = prm_clk_readl,
- .clk_writel = prm_clk_writel,
+#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
+static struct omap_prcm_init_data scrm_data __initdata = {
+ .index = TI_CLKM_SCRM,
+};
+#endif
+
+static const struct of_device_id omap_prcm_dt_match_table[] __initconst = {
+#ifdef CONFIG_SOC_AM33XX
+ { .compatible = "ti,am3-prcm", .data = &am3_prm_data },
+#endif
+#ifdef CONFIG_SOC_AM43XX
+ { .compatible = "ti,am4-prcm", .data = &am4_prm_data },
+#endif
+#ifdef CONFIG_SOC_TI81XX
+ { .compatible = "ti,dm814-prcm", .data = &am3_prm_data },
+ { .compatible = "ti,dm816-prcm", .data = &am3_prm_data },
+#endif
+#ifdef CONFIG_ARCH_OMAP2
+ { .compatible = "ti,omap2-prcm", .data = &omap2_prm_data },
+#endif
+#ifdef CONFIG_ARCH_OMAP3
+ { .compatible = "ti,omap3-prm", .data = &omap3_prm_data },
+#endif
+#ifdef CONFIG_ARCH_OMAP4
+ { .compatible = "ti,omap4-prm", .data = &omap4_prm_data },
+ { .compatible = "ti,omap4-scrm", .data = &scrm_data },
+#endif
+#ifdef CONFIG_SOC_OMAP5
+ { .compatible = "ti,omap5-prm", .data = &omap5_prm_data },
+ { .compatible = "ti,omap5-scrm", .data = &scrm_data },
+#endif
+#ifdef CONFIG_SOC_DRA7XX
+ { .compatible = "ti,dra7-prm", .data = &dra7_prm_data },
+#endif
+ { }
};
-int __init of_prcm_init(void)
+/**
+ * omap2_prm_base_init - initialize iomappings for the PRM driver
+ *
+ * Detects and initializes the iomappings for the PRM driver, based
+ * on the DT data. Returns 0 in success, negative error value
+ * otherwise.
+ */
+int __init omap2_prm_base_init(void)
{
struct device_node *np;
+ const struct of_device_id *match;
+ struct omap_prcm_init_data *data;
void __iomem *mem;
- int memmap_index = 0;
- ti_clk_ll_ops = &omap_clk_ll_ops;
+ for_each_matching_node_and_match(np, omap_prcm_dt_match_table, &match) {
+ data = (struct omap_prcm_init_data *)match->data;
- for_each_matching_node(np, omap_prcm_dt_match_table) {
mem = of_iomap(np, 0);
- clk_memmaps[memmap_index] = mem;
- ti_dt_clk_init_provider(np, memmap_index);
- memmap_index++;
+ if (!mem)
+ return -ENOMEM;
+
+ if (data->index == TI_CLKM_PRM)
+ prm_base = mem + data->offset;
+
+ data->mem = mem;
+
+ data->np = np;
+
+ if (data->init)
+ data->init(data);
}
return 0;
}
-void __init omap3_prcm_legacy_iomaps_init(void)
+int __init omap2_prcm_base_init(void)
{
- ti_clk_ll_ops = &omap_clk_ll_ops;
+ int ret;
- clk_memmaps[TI_CLKM_CM] = cm_base + OMAP3430_IVA2_MOD;
- clk_memmaps[TI_CLKM_PRM] = prm_base + OMAP3430_IVA2_MOD;
- clk_memmaps[TI_CLKM_SCRM] = omap_ctrl_base_get();
+ ret = omap2_prm_base_init();
+ if (ret)
+ return ret;
+
+ return omap2_cm_base_init();
+}
+
+/**
+ * omap_prcm_init - low level init for the PRCM drivers
+ *
+ * Initializes the low level clock infrastructure for PRCM drivers.
+ * Returns 0 in success, negative error value in failure.
+ */
+int __init omap_prcm_init(void)
+{
+ struct device_node *np;
+ const struct of_device_id *match;
+ const struct omap_prcm_init_data *data;
+ int ret;
+
+ for_each_matching_node_and_match(np, omap_prcm_dt_match_table, &match) {
+ data = match->data;
+
+ ret = omap2_clk_provider_init(np, data->index, NULL, data->mem);
+ if (ret)
+ return ret;
+ }
+
+ omap_cm_init();
+
+ return 0;
}
static int __init prm_late_init(void)
projects / cascardo / linux.git / blobdiff