Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Versatile Express V2M Motherboard Support |
| 3 | */ |
| 4 | #include <linux/device.h> |
| 5 | #include <linux/amba/bus.h> |
| 6 | #include <linux/amba/mmci.h> |
| 7 | #include <linux/io.h> |
| 8 | #include <linux/init.h> |
Pawel Moll | 8deed17 | 2012-02-23 13:04:51 +0000 | [diff] [blame] | 9 | #include <linux/of_address.h> |
| 10 | #include <linux/of_fdt.h> |
| 11 | #include <linux/of_irq.h> |
| 12 | #include <linux/of_platform.h> |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 13 | #include <linux/platform_device.h> |
Nick Bowler | 95c34f8 | 2011-01-21 15:51:06 +0100 | [diff] [blame] | 14 | #include <linux/ata_platform.h> |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 15 | #include <linux/smsc911x.h> |
| 16 | #include <linux/spinlock.h> |
Kay Sievers | edbaa60 | 2011-12-21 16:26:03 -0800 | [diff] [blame] | 17 | #include <linux/device.h> |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 18 | #include <linux/usb/isp1760.h> |
Jean-Christop PLAGNIOL-VILLARD | 6d803ba | 2010-11-17 10:04:33 +0100 | [diff] [blame] | 19 | #include <linux/clkdev.h> |
Marc Zyngier | 0f71fd4 | 2011-05-18 10:51:51 +0100 | [diff] [blame] | 20 | #include <linux/mtd/physmap.h> |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 21 | |
Will Deacon | 80b5efbd | 2011-02-28 17:01:04 +0100 | [diff] [blame] | 22 | #include <asm/mach-types.h> |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 23 | #include <asm/sizes.h> |
Will Deacon | 80b5efbd | 2011-02-28 17:01:04 +0100 | [diff] [blame] | 24 | #include <asm/mach/arch.h> |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 25 | #include <asm/mach/map.h> |
| 26 | #include <asm/mach/time.h> |
| 27 | #include <asm/hardware/arm_timer.h> |
Pawel Moll | 8deed17 | 2012-02-23 13:04:51 +0000 | [diff] [blame] | 28 | #include <asm/hardware/cache-l2x0.h> |
| 29 | #include <asm/hardware/gic.h> |
Russell King | 58daf18 | 2011-01-05 18:09:03 +0000 | [diff] [blame] | 30 | #include <asm/hardware/timer-sp.h> |
Pawel Moll | baaece2 | 2011-01-25 15:53:03 +0100 | [diff] [blame] | 31 | #include <asm/hardware/sp810.h> |
Marc Zyngier | abd3ca5 | 2011-09-06 10:23:45 +0100 | [diff] [blame] | 32 | #include <asm/hardware/gic.h> |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 33 | |
Will Deacon | 80b5efbd | 2011-02-28 17:01:04 +0100 | [diff] [blame] | 34 | #include <mach/ct-ca9x4.h> |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 35 | #include <mach/motherboard.h> |
| 36 | |
Russell King | 0af85dd | 2010-12-15 21:58:50 +0000 | [diff] [blame] | 37 | #include <plat/sched_clock.h> |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 38 | |
| 39 | #include "core.h" |
| 40 | |
| 41 | #define V2M_PA_CS0 0x40000000 |
| 42 | #define V2M_PA_CS1 0x44000000 |
| 43 | #define V2M_PA_CS2 0x48000000 |
| 44 | #define V2M_PA_CS3 0x4c000000 |
| 45 | #define V2M_PA_CS7 0x10000000 |
| 46 | |
| 47 | static struct map_desc v2m_io_desc[] __initdata = { |
| 48 | { |
Pawel Moll | 98ed4ce | 2012-01-25 15:37:29 +0000 | [diff] [blame] | 49 | .virtual = V2M_PERIPH, |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 50 | .pfn = __phys_to_pfn(V2M_PA_CS7), |
| 51 | .length = SZ_128K, |
| 52 | .type = MT_DEVICE, |
| 53 | }, |
| 54 | }; |
| 55 | |
Pawel Moll | 98ed4ce | 2012-01-25 15:37:29 +0000 | [diff] [blame] | 56 | static void __iomem *v2m_sysreg_base; |
| 57 | |
| 58 | static void __init v2m_sysctl_init(void __iomem *base) |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 59 | { |
Pawel Moll | baaece2 | 2011-01-25 15:53:03 +0100 | [diff] [blame] | 60 | u32 scctrl; |
| 61 | |
Pawel Moll | 98ed4ce | 2012-01-25 15:37:29 +0000 | [diff] [blame] | 62 | if (WARN_ON(!base)) |
| 63 | return; |
| 64 | |
Pawel Moll | baaece2 | 2011-01-25 15:53:03 +0100 | [diff] [blame] | 65 | /* Select 1MHz TIMCLK as the reference clock for SP804 timers */ |
Pawel Moll | 98ed4ce | 2012-01-25 15:37:29 +0000 | [diff] [blame] | 66 | scctrl = readl(base + SCCTRL); |
Pawel Moll | baaece2 | 2011-01-25 15:53:03 +0100 | [diff] [blame] | 67 | scctrl |= SCCTRL_TIMEREN0SEL_TIMCLK; |
| 68 | scctrl |= SCCTRL_TIMEREN1SEL_TIMCLK; |
Pawel Moll | 98ed4ce | 2012-01-25 15:37:29 +0000 | [diff] [blame] | 69 | writel(scctrl, base + SCCTRL); |
| 70 | } |
Pawel Moll | baaece2 | 2011-01-25 15:53:03 +0100 | [diff] [blame] | 71 | |
Pawel Moll | 98ed4ce | 2012-01-25 15:37:29 +0000 | [diff] [blame] | 72 | static void __init v2m_sp804_init(void __iomem *base, unsigned int irq) |
| 73 | { |
| 74 | if (WARN_ON(!base || irq == NO_IRQ)) |
| 75 | return; |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 76 | |
Pawel Moll | 98ed4ce | 2012-01-25 15:37:29 +0000 | [diff] [blame] | 77 | writel(0, base + TIMER_1_BASE + TIMER_CTRL); |
| 78 | writel(0, base + TIMER_2_BASE + TIMER_CTRL); |
| 79 | |
| 80 | sp804_clocksource_init(base + TIMER_2_BASE, "v2m-timer1"); |
| 81 | sp804_clockevents_init(base + TIMER_1_BASE, irq, "v2m-timer0"); |
| 82 | } |
| 83 | |
| 84 | static void __init v2m_timer_init(void) |
| 85 | { |
| 86 | v2m_sysctl_init(ioremap(V2M_SYSCTL, SZ_4K)); |
| 87 | v2m_sp804_init(ioremap(V2M_TIMER01, SZ_4K), IRQ_V2M_TIMER0); |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 88 | } |
| 89 | |
Will Deacon | 80b5efbd | 2011-02-28 17:01:04 +0100 | [diff] [blame] | 90 | static struct sys_timer v2m_timer = { |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 91 | .init = v2m_timer_init, |
| 92 | }; |
| 93 | |
| 94 | |
| 95 | static DEFINE_SPINLOCK(v2m_cfg_lock); |
| 96 | |
| 97 | int v2m_cfg_write(u32 devfn, u32 data) |
| 98 | { |
| 99 | /* Configuration interface broken? */ |
| 100 | u32 val; |
| 101 | |
| 102 | printk("%s: writing %08x to %08x\n", __func__, data, devfn); |
| 103 | |
| 104 | devfn |= SYS_CFG_START | SYS_CFG_WRITE; |
| 105 | |
| 106 | spin_lock(&v2m_cfg_lock); |
Pawel Moll | 98ed4ce | 2012-01-25 15:37:29 +0000 | [diff] [blame] | 107 | val = readl(v2m_sysreg_base + V2M_SYS_CFGSTAT); |
| 108 | writel(val & ~SYS_CFG_COMPLETE, v2m_sysreg_base + V2M_SYS_CFGSTAT); |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 109 | |
Pawel Moll | 98ed4ce | 2012-01-25 15:37:29 +0000 | [diff] [blame] | 110 | writel(data, v2m_sysreg_base + V2M_SYS_CFGDATA); |
| 111 | writel(devfn, v2m_sysreg_base + V2M_SYS_CFGCTRL); |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 112 | |
| 113 | do { |
Pawel Moll | 98ed4ce | 2012-01-25 15:37:29 +0000 | [diff] [blame] | 114 | val = readl(v2m_sysreg_base + V2M_SYS_CFGSTAT); |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 115 | } while (val == 0); |
| 116 | spin_unlock(&v2m_cfg_lock); |
| 117 | |
| 118 | return !!(val & SYS_CFG_ERR); |
| 119 | } |
| 120 | |
| 121 | int v2m_cfg_read(u32 devfn, u32 *data) |
| 122 | { |
| 123 | u32 val; |
| 124 | |
| 125 | devfn |= SYS_CFG_START; |
| 126 | |
| 127 | spin_lock(&v2m_cfg_lock); |
Pawel Moll | 98ed4ce | 2012-01-25 15:37:29 +0000 | [diff] [blame] | 128 | writel(0, v2m_sysreg_base + V2M_SYS_CFGSTAT); |
| 129 | writel(devfn, v2m_sysreg_base + V2M_SYS_CFGCTRL); |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 130 | |
| 131 | mb(); |
| 132 | |
| 133 | do { |
| 134 | cpu_relax(); |
Pawel Moll | 98ed4ce | 2012-01-25 15:37:29 +0000 | [diff] [blame] | 135 | val = readl(v2m_sysreg_base + V2M_SYS_CFGSTAT); |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 136 | } while (val == 0); |
| 137 | |
Pawel Moll | 98ed4ce | 2012-01-25 15:37:29 +0000 | [diff] [blame] | 138 | *data = readl(v2m_sysreg_base + V2M_SYS_CFGDATA); |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 139 | spin_unlock(&v2m_cfg_lock); |
| 140 | |
| 141 | return !!(val & SYS_CFG_ERR); |
| 142 | } |
| 143 | |
Pawel Moll | 98ed4ce | 2012-01-25 15:37:29 +0000 | [diff] [blame] | 144 | void __init v2m_flags_set(u32 data) |
| 145 | { |
| 146 | writel(~0, v2m_sysreg_base + V2M_SYS_FLAGSCLR); |
| 147 | writel(data, v2m_sysreg_base + V2M_SYS_FLAGSSET); |
| 148 | } |
| 149 | |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 150 | |
| 151 | static struct resource v2m_pcie_i2c_resource = { |
| 152 | .start = V2M_SERIAL_BUS_PCI, |
| 153 | .end = V2M_SERIAL_BUS_PCI + SZ_4K - 1, |
| 154 | .flags = IORESOURCE_MEM, |
| 155 | }; |
| 156 | |
| 157 | static struct platform_device v2m_pcie_i2c_device = { |
| 158 | .name = "versatile-i2c", |
| 159 | .id = 0, |
| 160 | .num_resources = 1, |
| 161 | .resource = &v2m_pcie_i2c_resource, |
| 162 | }; |
| 163 | |
| 164 | static struct resource v2m_ddc_i2c_resource = { |
| 165 | .start = V2M_SERIAL_BUS_DVI, |
| 166 | .end = V2M_SERIAL_BUS_DVI + SZ_4K - 1, |
| 167 | .flags = IORESOURCE_MEM, |
| 168 | }; |
| 169 | |
| 170 | static struct platform_device v2m_ddc_i2c_device = { |
| 171 | .name = "versatile-i2c", |
| 172 | .id = 1, |
| 173 | .num_resources = 1, |
| 174 | .resource = &v2m_ddc_i2c_resource, |
| 175 | }; |
| 176 | |
| 177 | static struct resource v2m_eth_resources[] = { |
| 178 | { |
| 179 | .start = V2M_LAN9118, |
| 180 | .end = V2M_LAN9118 + SZ_64K - 1, |
| 181 | .flags = IORESOURCE_MEM, |
| 182 | }, { |
| 183 | .start = IRQ_V2M_LAN9118, |
| 184 | .end = IRQ_V2M_LAN9118, |
| 185 | .flags = IORESOURCE_IRQ, |
| 186 | }, |
| 187 | }; |
| 188 | |
| 189 | static struct smsc911x_platform_config v2m_eth_config = { |
| 190 | .flags = SMSC911X_USE_32BIT, |
| 191 | .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH, |
| 192 | .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL, |
| 193 | .phy_interface = PHY_INTERFACE_MODE_MII, |
| 194 | }; |
| 195 | |
| 196 | static struct platform_device v2m_eth_device = { |
| 197 | .name = "smsc911x", |
| 198 | .id = -1, |
| 199 | .resource = v2m_eth_resources, |
| 200 | .num_resources = ARRAY_SIZE(v2m_eth_resources), |
| 201 | .dev.platform_data = &v2m_eth_config, |
| 202 | }; |
| 203 | |
| 204 | static struct resource v2m_usb_resources[] = { |
| 205 | { |
| 206 | .start = V2M_ISP1761, |
| 207 | .end = V2M_ISP1761 + SZ_128K - 1, |
| 208 | .flags = IORESOURCE_MEM, |
| 209 | }, { |
| 210 | .start = IRQ_V2M_ISP1761, |
| 211 | .end = IRQ_V2M_ISP1761, |
| 212 | .flags = IORESOURCE_IRQ, |
| 213 | }, |
| 214 | }; |
| 215 | |
| 216 | static struct isp1760_platform_data v2m_usb_config = { |
| 217 | .is_isp1761 = true, |
| 218 | .bus_width_16 = false, |
| 219 | .port1_otg = true, |
| 220 | .analog_oc = false, |
| 221 | .dack_polarity_high = false, |
| 222 | .dreq_polarity_high = false, |
| 223 | }; |
| 224 | |
| 225 | static struct platform_device v2m_usb_device = { |
| 226 | .name = "isp1760", |
| 227 | .id = -1, |
| 228 | .resource = v2m_usb_resources, |
| 229 | .num_resources = ARRAY_SIZE(v2m_usb_resources), |
| 230 | .dev.platform_data = &v2m_usb_config, |
| 231 | }; |
| 232 | |
Marc Zyngier | 667f390 | 2011-05-18 10:51:55 +0100 | [diff] [blame] | 233 | static void v2m_flash_set_vpp(struct platform_device *pdev, int on) |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 234 | { |
Pawel Moll | 98ed4ce | 2012-01-25 15:37:29 +0000 | [diff] [blame] | 235 | writel(on != 0, v2m_sysreg_base + V2M_SYS_FLASH); |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 236 | } |
| 237 | |
Marc Zyngier | 0f71fd4 | 2011-05-18 10:51:51 +0100 | [diff] [blame] | 238 | static struct physmap_flash_data v2m_flash_data = { |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 239 | .width = 4, |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 240 | .set_vpp = v2m_flash_set_vpp, |
| 241 | }; |
| 242 | |
| 243 | static struct resource v2m_flash_resources[] = { |
| 244 | { |
| 245 | .start = V2M_NOR0, |
| 246 | .end = V2M_NOR0 + SZ_64M - 1, |
| 247 | .flags = IORESOURCE_MEM, |
| 248 | }, { |
| 249 | .start = V2M_NOR1, |
| 250 | .end = V2M_NOR1 + SZ_64M - 1, |
| 251 | .flags = IORESOURCE_MEM, |
| 252 | }, |
| 253 | }; |
| 254 | |
| 255 | static struct platform_device v2m_flash_device = { |
Marc Zyngier | 0f71fd4 | 2011-05-18 10:51:51 +0100 | [diff] [blame] | 256 | .name = "physmap-flash", |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 257 | .id = -1, |
| 258 | .resource = v2m_flash_resources, |
| 259 | .num_resources = ARRAY_SIZE(v2m_flash_resources), |
| 260 | .dev.platform_data = &v2m_flash_data, |
| 261 | }; |
| 262 | |
Nick Bowler | 95c34f8 | 2011-01-21 15:51:06 +0100 | [diff] [blame] | 263 | static struct pata_platform_info v2m_pata_data = { |
| 264 | .ioport_shift = 2, |
| 265 | }; |
| 266 | |
| 267 | static struct resource v2m_pata_resources[] = { |
| 268 | { |
| 269 | .start = V2M_CF, |
| 270 | .end = V2M_CF + 0xff, |
| 271 | .flags = IORESOURCE_MEM, |
| 272 | }, { |
| 273 | .start = V2M_CF + 0x100, |
| 274 | .end = V2M_CF + SZ_4K - 1, |
| 275 | .flags = IORESOURCE_MEM, |
| 276 | }, |
| 277 | }; |
| 278 | |
| 279 | static struct platform_device v2m_cf_device = { |
| 280 | .name = "pata_platform", |
| 281 | .id = -1, |
| 282 | .resource = v2m_pata_resources, |
| 283 | .num_resources = ARRAY_SIZE(v2m_pata_resources), |
| 284 | .dev.platform_data = &v2m_pata_data, |
| 285 | }; |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 286 | |
| 287 | static unsigned int v2m_mmci_status(struct device *dev) |
| 288 | { |
Pawel Moll | 98ed4ce | 2012-01-25 15:37:29 +0000 | [diff] [blame] | 289 | return readl(v2m_sysreg_base + V2M_SYS_MCI) & (1 << 0); |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 290 | } |
| 291 | |
| 292 | static struct mmci_platform_data v2m_mmci_data = { |
| 293 | .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, |
| 294 | .status = v2m_mmci_status, |
| 295 | }; |
| 296 | |
| 297 | static AMBA_DEVICE(aaci, "mb:aaci", V2M_AACI, NULL); |
| 298 | static AMBA_DEVICE(mmci, "mb:mmci", V2M_MMCI, &v2m_mmci_data); |
| 299 | static AMBA_DEVICE(kmi0, "mb:kmi0", V2M_KMI0, NULL); |
| 300 | static AMBA_DEVICE(kmi1, "mb:kmi1", V2M_KMI1, NULL); |
| 301 | static AMBA_DEVICE(uart0, "mb:uart0", V2M_UART0, NULL); |
| 302 | static AMBA_DEVICE(uart1, "mb:uart1", V2M_UART1, NULL); |
| 303 | static AMBA_DEVICE(uart2, "mb:uart2", V2M_UART2, NULL); |
| 304 | static AMBA_DEVICE(uart3, "mb:uart3", V2M_UART3, NULL); |
| 305 | static AMBA_DEVICE(wdt, "mb:wdt", V2M_WDT, NULL); |
| 306 | static AMBA_DEVICE(rtc, "mb:rtc", V2M_RTC, NULL); |
| 307 | |
| 308 | static struct amba_device *v2m_amba_devs[] __initdata = { |
| 309 | &aaci_device, |
| 310 | &mmci_device, |
| 311 | &kmi0_device, |
| 312 | &kmi1_device, |
| 313 | &uart0_device, |
| 314 | &uart1_device, |
| 315 | &uart2_device, |
| 316 | &uart3_device, |
| 317 | &wdt_device, |
| 318 | &rtc_device, |
| 319 | }; |
| 320 | |
| 321 | |
| 322 | static long v2m_osc_round(struct clk *clk, unsigned long rate) |
| 323 | { |
| 324 | return rate; |
| 325 | } |
| 326 | |
| 327 | static int v2m_osc1_set(struct clk *clk, unsigned long rate) |
| 328 | { |
| 329 | return v2m_cfg_write(SYS_CFG_OSC | SYS_CFG_SITE_MB | 1, rate); |
| 330 | } |
| 331 | |
| 332 | static const struct clk_ops osc1_clk_ops = { |
| 333 | .round = v2m_osc_round, |
| 334 | .set = v2m_osc1_set, |
| 335 | }; |
| 336 | |
| 337 | static struct clk osc1_clk = { |
| 338 | .ops = &osc1_clk_ops, |
| 339 | .rate = 24000000, |
| 340 | }; |
| 341 | |
| 342 | static struct clk osc2_clk = { |
| 343 | .rate = 24000000, |
| 344 | }; |
| 345 | |
Russell King | 7ff550d | 2011-05-12 13:31:48 +0100 | [diff] [blame] | 346 | static struct clk v2m_sp804_clk = { |
| 347 | .rate = 1000000, |
| 348 | }; |
| 349 | |
Nick Bowler | 0ebb962 | 2011-07-20 15:43:42 +0100 | [diff] [blame] | 350 | static struct clk v2m_ref_clk = { |
| 351 | .rate = 32768, |
| 352 | }; |
| 353 | |
Russell King | 3126c7b | 2010-07-15 11:01:17 +0100 | [diff] [blame] | 354 | static struct clk dummy_apb_pclk; |
| 355 | |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 356 | static struct clk_lookup v2m_lookups[] = { |
Russell King | 3126c7b | 2010-07-15 11:01:17 +0100 | [diff] [blame] | 357 | { /* AMBA bus clock */ |
| 358 | .con_id = "apb_pclk", |
| 359 | .clk = &dummy_apb_pclk, |
| 360 | }, { /* UART0 */ |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 361 | .dev_id = "mb:uart0", |
| 362 | .clk = &osc2_clk, |
| 363 | }, { /* UART1 */ |
| 364 | .dev_id = "mb:uart1", |
| 365 | .clk = &osc2_clk, |
| 366 | }, { /* UART2 */ |
| 367 | .dev_id = "mb:uart2", |
| 368 | .clk = &osc2_clk, |
| 369 | }, { /* UART3 */ |
| 370 | .dev_id = "mb:uart3", |
| 371 | .clk = &osc2_clk, |
| 372 | }, { /* KMI0 */ |
| 373 | .dev_id = "mb:kmi0", |
| 374 | .clk = &osc2_clk, |
| 375 | }, { /* KMI1 */ |
| 376 | .dev_id = "mb:kmi1", |
| 377 | .clk = &osc2_clk, |
| 378 | }, { /* MMC0 */ |
| 379 | .dev_id = "mb:mmci", |
| 380 | .clk = &osc2_clk, |
| 381 | }, { /* CLCD */ |
| 382 | .dev_id = "mb:clcd", |
| 383 | .clk = &osc1_clk, |
Nick Bowler | 0ebb962 | 2011-07-20 15:43:42 +0100 | [diff] [blame] | 384 | }, { /* SP805 WDT */ |
| 385 | .dev_id = "mb:wdt", |
| 386 | .clk = &v2m_ref_clk, |
Russell King | 7ff550d | 2011-05-12 13:31:48 +0100 | [diff] [blame] | 387 | }, { /* SP804 timers */ |
| 388 | .dev_id = "sp804", |
Russell King | 23828a7 | 2011-05-12 15:45:16 +0100 | [diff] [blame] | 389 | .con_id = "v2m-timer0", |
| 390 | .clk = &v2m_sp804_clk, |
| 391 | }, { /* SP804 timers */ |
| 392 | .dev_id = "sp804", |
Russell King | 7ff550d | 2011-05-12 13:31:48 +0100 | [diff] [blame] | 393 | .con_id = "v2m-timer1", |
| 394 | .clk = &v2m_sp804_clk, |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 395 | }, |
| 396 | }; |
| 397 | |
Rob Herring | 2fdf999 | 2011-05-30 19:44:22 +0100 | [diff] [blame] | 398 | static void __init v2m_init_early(void) |
| 399 | { |
| 400 | ct_desc->init_early(); |
| 401 | clkdev_add_table(v2m_lookups, ARRAY_SIZE(v2m_lookups)); |
Pawel Moll | 98ed4ce | 2012-01-25 15:37:29 +0000 | [diff] [blame] | 402 | versatile_sched_clock_init(v2m_sysreg_base + V2M_SYS_24MHZ, 24000000); |
Rob Herring | 2fdf999 | 2011-05-30 19:44:22 +0100 | [diff] [blame] | 403 | } |
| 404 | |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 405 | static void v2m_power_off(void) |
| 406 | { |
| 407 | if (v2m_cfg_write(SYS_CFG_SHUTDOWN | SYS_CFG_SITE_MB, 0)) |
| 408 | printk(KERN_EMERG "Unable to shutdown\n"); |
| 409 | } |
| 410 | |
| 411 | static void v2m_restart(char str, const char *cmd) |
| 412 | { |
| 413 | if (v2m_cfg_write(SYS_CFG_REBOOT | SYS_CFG_SITE_MB, 0)) |
| 414 | printk(KERN_EMERG "Unable to reboot\n"); |
| 415 | } |
| 416 | |
Will Deacon | 80b5efbd | 2011-02-28 17:01:04 +0100 | [diff] [blame] | 417 | struct ct_desc *ct_desc; |
| 418 | |
| 419 | static struct ct_desc *ct_descs[] __initdata = { |
| 420 | #ifdef CONFIG_ARCH_VEXPRESS_CA9X4 |
| 421 | &ct_ca9x4_desc, |
| 422 | #endif |
| 423 | }; |
| 424 | |
| 425 | static void __init v2m_populate_ct_desc(void) |
| 426 | { |
| 427 | int i; |
| 428 | u32 current_tile_id; |
| 429 | |
| 430 | ct_desc = NULL; |
Pawel Moll | 98ed4ce | 2012-01-25 15:37:29 +0000 | [diff] [blame] | 431 | current_tile_id = readl(v2m_sysreg_base + V2M_SYS_PROCID0) |
| 432 | & V2M_CT_ID_MASK; |
Will Deacon | 80b5efbd | 2011-02-28 17:01:04 +0100 | [diff] [blame] | 433 | |
| 434 | for (i = 0; i < ARRAY_SIZE(ct_descs) && !ct_desc; ++i) |
| 435 | if (ct_descs[i]->id == current_tile_id) |
| 436 | ct_desc = ct_descs[i]; |
| 437 | |
| 438 | if (!ct_desc) |
Pawel Moll | 8deed17 | 2012-02-23 13:04:51 +0000 | [diff] [blame] | 439 | panic("vexpress: this kernel does not support core tile ID 0x%08x when booting via ATAGs.\n" |
| 440 | "You may need a device tree blob or a different kernel to boot on this board.\n", |
| 441 | current_tile_id); |
Will Deacon | 80b5efbd | 2011-02-28 17:01:04 +0100 | [diff] [blame] | 442 | } |
| 443 | |
| 444 | static void __init v2m_map_io(void) |
| 445 | { |
| 446 | iotable_init(v2m_io_desc, ARRAY_SIZE(v2m_io_desc)); |
Pawel Moll | 98ed4ce | 2012-01-25 15:37:29 +0000 | [diff] [blame] | 447 | v2m_sysreg_base = ioremap(V2M_SYSREGS, SZ_4K); |
Will Deacon | 80b5efbd | 2011-02-28 17:01:04 +0100 | [diff] [blame] | 448 | v2m_populate_ct_desc(); |
| 449 | ct_desc->map_io(); |
| 450 | } |
| 451 | |
| 452 | static void __init v2m_init_irq(void) |
| 453 | { |
| 454 | ct_desc->init_irq(); |
| 455 | } |
| 456 | |
| 457 | static void __init v2m_init(void) |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 458 | { |
| 459 | int i; |
| 460 | |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 461 | platform_device_register(&v2m_pcie_i2c_device); |
| 462 | platform_device_register(&v2m_ddc_i2c_device); |
| 463 | platform_device_register(&v2m_flash_device); |
Nick Bowler | 95c34f8 | 2011-01-21 15:51:06 +0100 | [diff] [blame] | 464 | platform_device_register(&v2m_cf_device); |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 465 | platform_device_register(&v2m_eth_device); |
| 466 | platform_device_register(&v2m_usb_device); |
| 467 | |
| 468 | for (i = 0; i < ARRAY_SIZE(v2m_amba_devs); i++) |
| 469 | amba_device_register(v2m_amba_devs[i], &iomem_resource); |
| 470 | |
| 471 | pm_power_off = v2m_power_off; |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 472 | |
Will Deacon | 80b5efbd | 2011-02-28 17:01:04 +0100 | [diff] [blame] | 473 | ct_desc->init_tile(); |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 474 | } |
Will Deacon | 80b5efbd | 2011-02-28 17:01:04 +0100 | [diff] [blame] | 475 | |
| 476 | MACHINE_START(VEXPRESS, "ARM-Versatile Express") |
Nicolas Pitre | e9ce8e5 | 2011-07-05 22:38:18 -0400 | [diff] [blame] | 477 | .atag_offset = 0x100, |
Will Deacon | 80b5efbd | 2011-02-28 17:01:04 +0100 | [diff] [blame] | 478 | .map_io = v2m_map_io, |
| 479 | .init_early = v2m_init_early, |
| 480 | .init_irq = v2m_init_irq, |
| 481 | .timer = &v2m_timer, |
Marc Zyngier | abd3ca5 | 2011-09-06 10:23:45 +0100 | [diff] [blame] | 482 | .handle_irq = gic_handle_irq, |
Will Deacon | 80b5efbd | 2011-02-28 17:01:04 +0100 | [diff] [blame] | 483 | .init_machine = v2m_init, |
Russell King | f5733a1 | 2011-11-04 15:47:50 +0000 | [diff] [blame] | 484 | .restart = v2m_restart, |
Will Deacon | 80b5efbd | 2011-02-28 17:01:04 +0100 | [diff] [blame] | 485 | MACHINE_END |
Pawel Moll | 8deed17 | 2012-02-23 13:04:51 +0000 | [diff] [blame] | 486 | |
| 487 | #if defined(CONFIG_ARCH_VEXPRESS_DT) |
| 488 | |
Pawel Moll | 6a37195 | 2011-12-09 18:47:39 +0000 | [diff] [blame^] | 489 | static struct map_desc v2m_rs1_io_desc __initdata = { |
| 490 | .virtual = V2M_PERIPH, |
| 491 | .pfn = __phys_to_pfn(0x1c000000), |
| 492 | .length = SZ_2M, |
| 493 | .type = MT_DEVICE, |
| 494 | }; |
| 495 | |
| 496 | static int __init v2m_dt_scan_memory_map(unsigned long node, const char *uname, |
| 497 | int depth, void *data) |
| 498 | { |
| 499 | const char **map = data; |
| 500 | |
| 501 | if (strcmp(uname, "motherboard") != 0) |
| 502 | return 0; |
| 503 | |
| 504 | *map = of_get_flat_dt_prop(node, "arm,v2m-memory-map", NULL); |
| 505 | |
| 506 | return 1; |
| 507 | } |
| 508 | |
Pawel Moll | 8deed17 | 2012-02-23 13:04:51 +0000 | [diff] [blame] | 509 | void __init v2m_dt_map_io(void) |
| 510 | { |
Pawel Moll | 6a37195 | 2011-12-09 18:47:39 +0000 | [diff] [blame^] | 511 | const char *map = NULL; |
| 512 | |
| 513 | of_scan_flat_dt(v2m_dt_scan_memory_map, &map); |
| 514 | |
| 515 | if (map && strcmp(map, "rs1") == 0) |
| 516 | iotable_init(&v2m_rs1_io_desc, 1); |
| 517 | else |
| 518 | iotable_init(v2m_io_desc, ARRAY_SIZE(v2m_io_desc)); |
Pawel Moll | 8deed17 | 2012-02-23 13:04:51 +0000 | [diff] [blame] | 519 | |
| 520 | #if defined(CONFIG_SMP) |
| 521 | vexpress_dt_smp_map_io(); |
| 522 | #endif |
| 523 | } |
| 524 | |
| 525 | static struct clk_lookup v2m_dt_lookups[] = { |
| 526 | { /* AMBA bus clock */ |
| 527 | .con_id = "apb_pclk", |
| 528 | .clk = &dummy_apb_pclk, |
| 529 | }, { /* SP804 timers */ |
| 530 | .dev_id = "sp804", |
| 531 | .con_id = "v2m-timer0", |
| 532 | .clk = &v2m_sp804_clk, |
| 533 | }, { /* SP804 timers */ |
| 534 | .dev_id = "sp804", |
| 535 | .con_id = "v2m-timer1", |
| 536 | .clk = &v2m_sp804_clk, |
| 537 | }, { /* PL180 MMCI */ |
| 538 | .dev_id = "mb:mmci", /* 10005000.mmci */ |
| 539 | .clk = &osc2_clk, |
| 540 | }, { /* PL050 KMI0 */ |
| 541 | .dev_id = "10006000.kmi", |
| 542 | .clk = &osc2_clk, |
| 543 | }, { /* PL050 KMI1 */ |
| 544 | .dev_id = "10007000.kmi", |
| 545 | .clk = &osc2_clk, |
| 546 | }, { /* PL011 UART0 */ |
| 547 | .dev_id = "10009000.uart", |
| 548 | .clk = &osc2_clk, |
| 549 | }, { /* PL011 UART1 */ |
| 550 | .dev_id = "1000a000.uart", |
| 551 | .clk = &osc2_clk, |
| 552 | }, { /* PL011 UART2 */ |
| 553 | .dev_id = "1000b000.uart", |
| 554 | .clk = &osc2_clk, |
| 555 | }, { /* PL011 UART3 */ |
| 556 | .dev_id = "1000c000.uart", |
| 557 | .clk = &osc2_clk, |
| 558 | }, { /* SP805 WDT */ |
| 559 | .dev_id = "1000f000.wdt", |
| 560 | .clk = &v2m_ref_clk, |
| 561 | }, { /* PL111 CLCD */ |
| 562 | .dev_id = "1001f000.clcd", |
| 563 | .clk = &osc1_clk, |
| 564 | }, |
Pawel Moll | 6a37195 | 2011-12-09 18:47:39 +0000 | [diff] [blame^] | 565 | /* RS1 memory map */ |
| 566 | { /* PL180 MMCI */ |
| 567 | .dev_id = "mb:mmci", /* 1c050000.mmci */ |
| 568 | .clk = &osc2_clk, |
| 569 | }, { /* PL050 KMI0 */ |
| 570 | .dev_id = "1c060000.kmi", |
| 571 | .clk = &osc2_clk, |
| 572 | }, { /* PL050 KMI1 */ |
| 573 | .dev_id = "1c070000.kmi", |
| 574 | .clk = &osc2_clk, |
| 575 | }, { /* PL011 UART0 */ |
| 576 | .dev_id = "1c090000.uart", |
| 577 | .clk = &osc2_clk, |
| 578 | }, { /* PL011 UART1 */ |
| 579 | .dev_id = "1c0a0000.uart", |
| 580 | .clk = &osc2_clk, |
| 581 | }, { /* PL011 UART2 */ |
| 582 | .dev_id = "1c0b0000.uart", |
| 583 | .clk = &osc2_clk, |
| 584 | }, { /* PL011 UART3 */ |
| 585 | .dev_id = "1c0c0000.uart", |
| 586 | .clk = &osc2_clk, |
| 587 | }, { /* SP805 WDT */ |
| 588 | .dev_id = "1c0f0000.wdt", |
| 589 | .clk = &v2m_ref_clk, |
| 590 | }, { /* PL111 CLCD */ |
| 591 | .dev_id = "1c1f0000.clcd", |
| 592 | .clk = &osc1_clk, |
| 593 | }, |
Pawel Moll | 8deed17 | 2012-02-23 13:04:51 +0000 | [diff] [blame] | 594 | }; |
| 595 | |
| 596 | void __init v2m_dt_init_early(void) |
| 597 | { |
| 598 | struct device_node *node; |
| 599 | u32 dt_hbi; |
| 600 | |
| 601 | node = of_find_compatible_node(NULL, NULL, "arm,vexpress-sysreg"); |
| 602 | v2m_sysreg_base = of_iomap(node, 0); |
| 603 | if (WARN_ON(!v2m_sysreg_base)) |
| 604 | return; |
| 605 | |
| 606 | /* Confirm board type against DT property, if available */ |
| 607 | if (of_property_read_u32(allnodes, "arm,hbi", &dt_hbi) == 0) { |
| 608 | u32 misc = readl(v2m_sysreg_base + V2M_SYS_MISC); |
| 609 | u32 id = readl(v2m_sysreg_base + (misc & SYS_MISC_MASTERSITE ? |
| 610 | V2M_SYS_PROCID1 : V2M_SYS_PROCID0)); |
| 611 | u32 hbi = id & SYS_PROCIDx_HBI_MASK; |
| 612 | |
| 613 | if (WARN_ON(dt_hbi != hbi)) |
| 614 | pr_warning("vexpress: DT HBI (%x) is not matching " |
| 615 | "hardware (%x)!\n", dt_hbi, hbi); |
| 616 | } |
| 617 | |
| 618 | clkdev_add_table(v2m_dt_lookups, ARRAY_SIZE(v2m_dt_lookups)); |
| 619 | versatile_sched_clock_init(v2m_sysreg_base + V2M_SYS_24MHZ, 24000000); |
| 620 | } |
| 621 | |
| 622 | static struct of_device_id vexpress_irq_match[] __initdata = { |
| 623 | { .compatible = "arm,cortex-a9-gic", .data = gic_of_init, }, |
| 624 | {} |
| 625 | }; |
| 626 | |
| 627 | static void __init v2m_dt_init_irq(void) |
| 628 | { |
| 629 | of_irq_init(vexpress_irq_match); |
| 630 | } |
| 631 | |
| 632 | static void __init v2m_dt_timer_init(void) |
| 633 | { |
| 634 | struct device_node *node; |
| 635 | const char *path; |
| 636 | int err; |
| 637 | |
| 638 | node = of_find_compatible_node(NULL, NULL, "arm,sp810"); |
| 639 | v2m_sysctl_init(of_iomap(node, 0)); |
| 640 | |
| 641 | err = of_property_read_string(of_aliases, "arm,v2m_timer", &path); |
| 642 | if (WARN_ON(err)) |
| 643 | return; |
| 644 | node = of_find_node_by_path(path); |
| 645 | v2m_sp804_init(of_iomap(node, 0), irq_of_parse_and_map(node, 0)); |
| 646 | } |
| 647 | |
| 648 | static struct sys_timer v2m_dt_timer = { |
| 649 | .init = v2m_dt_timer_init, |
| 650 | }; |
| 651 | |
| 652 | static struct of_dev_auxdata v2m_dt_auxdata_lookup[] __initdata = { |
| 653 | OF_DEV_AUXDATA("arm,vexpress-flash", V2M_NOR0, "physmap-flash", |
| 654 | &v2m_flash_data), |
| 655 | OF_DEV_AUXDATA("arm,primecell", V2M_MMCI, "mb:mmci", &v2m_mmci_data), |
Pawel Moll | 6a37195 | 2011-12-09 18:47:39 +0000 | [diff] [blame^] | 656 | /* RS1 memory map */ |
| 657 | OF_DEV_AUXDATA("arm,vexpress-flash", 0x08000000, "physmap-flash", |
| 658 | &v2m_flash_data), |
| 659 | OF_DEV_AUXDATA("arm,primecell", 0x1c050000, "mb:mmci", &v2m_mmci_data), |
Pawel Moll | 8deed17 | 2012-02-23 13:04:51 +0000 | [diff] [blame] | 660 | {} |
| 661 | }; |
| 662 | |
| 663 | static void __init v2m_dt_init(void) |
| 664 | { |
| 665 | l2x0_of_init(0x00400000, 0xfe0fffff); |
| 666 | of_platform_populate(NULL, of_default_bus_match_table, |
| 667 | v2m_dt_auxdata_lookup, NULL); |
| 668 | pm_power_off = v2m_power_off; |
| 669 | } |
| 670 | |
| 671 | const static char *v2m_dt_match[] __initconst = { |
| 672 | "arm,vexpress", |
| 673 | NULL, |
| 674 | }; |
| 675 | |
| 676 | DT_MACHINE_START(VEXPRESS_DT, "ARM-Versatile Express") |
| 677 | .dt_compat = v2m_dt_match, |
| 678 | .map_io = v2m_dt_map_io, |
| 679 | .init_early = v2m_dt_init_early, |
| 680 | .init_irq = v2m_dt_init_irq, |
| 681 | .timer = &v2m_dt_timer, |
| 682 | .init_machine = v2m_dt_init, |
| 683 | .handle_irq = gic_handle_irq, |
| 684 | .restart = v2m_restart, |
| 685 | MACHINE_END |
| 686 | |
| 687 | #endif |