2 * Copyright (C) 2013-2014 ROCKCHIP, Inc.
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
15 #include <linux/clk-provider.h>
16 #include <linux/genalloc.h>
17 #include <linux/init.h>
19 #include <linux/kernel.h>
20 #include <linux/of_address.h>
21 #include <linux/of_platform.h>
22 #include <linux/of_fdt.h>
23 #include <asm/cputype.h>
24 #include <asm/hardware/cache-l2x0.h>
25 #include <linux/rockchip/common.h>
26 #include <linux/rockchip/pmu.h>
31 static int __init rockchip_cpu_axi_init(void)
33 struct device_node *np, *gp, *cp;
36 np = of_find_compatible_node(NULL, NULL, "rockchip,cpu_axi_bus");
40 #define MAP(base) if (!base) base = of_iomap(cp, 0); if (!base) continue;
42 gp = of_get_child_by_name(np, "qos");
44 for_each_child_of_node(gp, cp) {
45 u32 priority[2], mode, bandwidth, saturation, extcontrol;
50 of_address_to_resource(cp, 0, &r);
51 pr_debug("qos: %s [%x ~ %x]\n", cp->name, r.start, r.end);
54 if (!of_property_read_u32_array(cp, "rockchip,priority", priority, ARRAY_SIZE(priority))) {
56 CPU_AXI_SET_QOS_PRIORITY(priority[0], priority[1], base);
57 pr_debug("qos: %s priority %x %x\n", cp->name, priority[0], priority[1]);
59 if (!of_property_read_u32(cp, "rockchip,mode", &mode)) {
61 CPU_AXI_SET_QOS_MODE(mode, base);
62 pr_debug("qos: %s mode %x\n", cp->name, mode);
64 if (!of_property_read_u32(cp, "rockchip,bandwidth", &bandwidth)) {
66 CPU_AXI_SET_QOS_BANDWIDTH(bandwidth, base);
67 pr_debug("qos: %s bandwidth %x\n", cp->name, bandwidth);
69 if (!of_property_read_u32(cp, "rockchip,saturation", &saturation)) {
71 CPU_AXI_SET_QOS_SATURATION(saturation, base);
72 pr_debug("qos: %s saturation %x\n", cp->name, saturation);
74 if (!of_property_read_u32(cp, "rockchip,extcontrol", &extcontrol)) {
76 CPU_AXI_SET_QOS_EXTCONTROL(extcontrol, base);
77 pr_debug("qos: %s extcontrol %x\n", cp->name, extcontrol);
84 gp = of_get_child_by_name(np, "msch");
86 for_each_child_of_node(gp, cp) {
92 of_address_to_resource(cp, 0, &r);
93 pr_debug("msch: %s [%x ~ %x]\n", cp->name, r.start, r.end);
96 if (!of_property_read_u32(cp, "rockchip,read-latency", &val)) {
98 writel_relaxed(val, base + 0x0014); // memory scheduler read latency
99 pr_debug("msch: %s read latency %x\n", cp->name, val);
111 early_initcall(rockchip_cpu_axi_init);
113 static int __init rockchip_pl330_l2_cache_init(void)
115 struct device_node *np;
117 u32 aux[2] = { 0, ~0 }, prefetch, power;
119 if (read_cpuid_part_number() != ARM_CPU_PART_CORTEX_A9)
122 np = of_find_compatible_node(NULL, NULL, "rockchip,pl310-cache");
126 base = of_iomap(np, 0);
130 if (!of_property_read_u32(np, "rockchip,prefetch-ctrl", &prefetch)) {
131 /* L2X0 Prefetch Control */
132 writel_relaxed(prefetch, base + L2X0_PREFETCH_CTRL);
133 pr_debug("l2c: prefetch %x\n", prefetch);
136 if (!of_property_read_u32(np, "rockchip,power-ctrl", &power)) {
137 /* L2X0 Power Control */
138 writel_relaxed(power, base + L2X0_POWER_CTRL);
139 pr_debug("l2c: power %x\n", power);
144 of_property_read_u32_array(np, "rockchip,aux-ctrl", aux, ARRAY_SIZE(aux));
145 pr_debug("l2c: aux %08x mask %08x\n", aux[0], aux[1]);
147 l2x0_of_init(aux[0], aux[1]);
151 early_initcall(rockchip_pl330_l2_cache_init);
153 struct gen_pool *rockchip_sram_pool = NULL;
154 struct pie_chunk *rockchip_pie_chunk = NULL;
155 void *rockchip_sram_virt = NULL;
156 size_t rockchip_sram_size = 0;
157 char *rockchip_sram_stack = NULL;
160 int __init rockchip_pie_init(void)
162 struct device_node *np;
164 np = of_find_node_by_path("/");
168 rockchip_sram_pool = of_get_named_gen_pool(np, "rockchip,sram", 0);
169 if (!rockchip_sram_pool) {
170 pr_err("%s: failed to get sram pool\n", __func__);
173 rockchip_sram_size = gen_pool_size(rockchip_sram_pool);
179 static bool is_panic = false;
180 extern void console_disable_suspend(void);
182 static int panic_event(struct notifier_block *this, unsigned long event, void *ptr)
184 #if CONFIG_RK_DEBUG_UART >= 0
185 console_disable_suspend();
191 static struct notifier_block panic_block = {
192 .notifier_call = panic_event,
195 static int boot_mode;
197 int rockchip_boot_mode(void)
201 EXPORT_SYMBOL(rockchip_boot_mode);
203 static inline const char *boot_flag_name(u32 flag)
205 flag -= SYS_KERNRL_REBOOT_FLAG;
207 case BOOT_NORMAL: return "NORMAL";
208 case BOOT_LOADER: return "LOADER";
209 case BOOT_MASKROM: return "MASKROM";
210 case BOOT_RECOVER: return "RECOVER";
211 case BOOT_NORECOVER: return "NORECOVER";
212 case BOOT_SECONDOS: return "SECONDOS";
213 case BOOT_WIPEDATA: return "WIPEDATA";
214 case BOOT_WIPEALL: return "WIPEALL";
215 case BOOT_CHECKIMG: return "CHECKIMG";
216 case BOOT_FASTBOOT: return "FASTBOOT";
217 case BOOT_CHARGING: return "CHARGING";
222 static inline const char *boot_mode_name(u32 mode)
225 case BOOT_MODE_NORMAL: return "NORMAL";
226 case BOOT_MODE_FACTORY2: return "FACTORY2";
227 case BOOT_MODE_RECOVERY: return "RECOVERY";
228 case BOOT_MODE_CHARGE: return "CHARGE";
229 case BOOT_MODE_POWER_TEST: return "POWER_TEST";
230 case BOOT_MODE_OFFMODE_CHARGING: return "OFFMODE_CHARGING";
231 case BOOT_MODE_REBOOT: return "REBOOT";
232 case BOOT_MODE_PANIC: return "PANIC";
233 case BOOT_MODE_WATCHDOG: return "WATCHDOG";
234 case BOOT_MODE_TSADC: return "TSADC";
239 void __init rockchip_boot_mode_init(u32 flag, u32 mode)
242 if (mode || ((flag & 0xff) && ((flag & 0xffffff00) == SYS_KERNRL_REBOOT_FLAG)))
243 printk("Boot mode: %s (%d) flag: %s (0x%08x)\n", boot_mode_name(mode), mode, boot_flag_name(flag), flag);
244 atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
247 void rockchip_restart_get_boot_mode(const char *cmd, u32 *flag, u32 *mode)
249 *flag = SYS_LOADER_REBOOT_FLAG + BOOT_NORMAL;
250 *mode = BOOT_MODE_REBOOT;
253 if (!strcmp(cmd, "loader") || !strcmp(cmd, "bootloader"))
254 *flag = SYS_LOADER_REBOOT_FLAG + BOOT_LOADER;
255 else if(!strcmp(cmd, "recovery"))
256 *flag = SYS_LOADER_REBOOT_FLAG + BOOT_RECOVER;
257 else if (!strcmp(cmd, "fastboot"))
258 *flag = SYS_LOADER_REBOOT_FLAG + BOOT_FASTBOOT;
259 else if (!strcmp(cmd, "charge")) {
260 *flag = SYS_LOADER_REBOOT_FLAG + BOOT_CHARGING;
261 *mode = BOOT_MODE_CHARGE;
265 *mode = BOOT_MODE_PANIC;
269 struct rockchip_pmu_operations rockchip_pmu_ops;
270 void (*ddr_bandwidth_get)(struct ddr_bw_info *ddr_bw_ch0,
271 struct ddr_bw_info *ddr_bw_ch1);
272 int (*ddr_change_freq)(uint32_t nMHz) = NULL;
273 long (*ddr_round_rate)(uint32_t nMHz) = NULL;
274 void (*ddr_set_auto_self_refresh)(bool en) = NULL;
276 extern struct ion_platform_data ion_pdata;
277 extern void __init ion_reserve(struct ion_platform_data *data);
278 extern int __init rockchip_ion_find_heap(unsigned long node,
279 const char *uname, int depth, void *data);
280 void __init rockchip_ion_reserve(void)
282 #ifdef CONFIG_ION_ROCKCHIP
283 printk("%s\n", __func__);
284 of_scan_flat_dt(rockchip_ion_find_heap, (void*)&ion_pdata);
285 ion_reserve(&ion_pdata);
289 bool rockchip_jtag_enabled = false;
290 static int __init rockchip_jtag_enable(char *__unused)
292 rockchip_jtag_enabled = true;
293 printk("rockchip jtag enabled\n");
296 __setup("rockchip_jtag", rockchip_jtag_enable);