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Diffstat (limited to 'arch/arm/mach-vexpress/v2m.c')
-rw-r--r--arch/arm/mach-vexpress/v2m.c479
1 files changed, 89 insertions, 390 deletions
diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c
index fde26adaef3..6ff681a24ba 100644
--- a/arch/arm/mach-vexpress/v2m.c
+++ b/arch/arm/mach-vexpress/v2m.c
@@ -5,6 +5,7 @@
#include <linux/amba/bus.h>
#include <linux/amba/mmci.h>
#include <linux/io.h>
+#include <linux/smp.h>
#include <linux/init.h>
#include <linux/of_address.h>
#include <linux/of_fdt.h>
@@ -15,26 +16,26 @@
#include <linux/smsc911x.h>
#include <linux/spinlock.h>
#include <linux/usb/isp1760.h>
-#include <linux/clkdev.h>
#include <linux/mtd/physmap.h>
+#include <linux/regulator/fixed.h>
+#include <linux/regulator/machine.h>
+#include <linux/vexpress.h>
+#include <linux/clkdev.h>
-#include <asm/arch_timer.h>
#include <asm/mach-types.h>
#include <asm/sizes.h>
-#include <asm/smp_twd.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include <asm/hardware/arm_timer.h>
#include <asm/hardware/cache-l2x0.h>
-#include <asm/hardware/gic.h>
#include <asm/hardware/timer-sp.h>
-#include <asm/hardware/sp810.h>
#include <mach/ct-ca9x4.h>
#include <mach/motherboard.h>
#include <plat/sched_clock.h>
+#include <plat/platsmp.h>
#include "core.h"
@@ -53,100 +54,15 @@ static struct map_desc v2m_io_desc[] __initdata = {
},
};
-static void __iomem *v2m_sysreg_base;
-
-static void __init v2m_sysctl_init(void __iomem *base)
-{
- u32 scctrl;
-
- if (WARN_ON(!base))
- return;
-
- /* Select 1MHz TIMCLK as the reference clock for SP804 timers */
- scctrl = readl(base + SCCTRL);
- scctrl |= SCCTRL_TIMEREN0SEL_TIMCLK;
- scctrl |= SCCTRL_TIMEREN1SEL_TIMCLK;
- writel(scctrl, base + SCCTRL);
-}
-
static void __init v2m_sp804_init(void __iomem *base, unsigned int irq)
{
if (WARN_ON(!base || irq == NO_IRQ))
return;
- writel(0, base + TIMER_1_BASE + TIMER_CTRL);
- writel(0, base + TIMER_2_BASE + TIMER_CTRL);
-
sp804_clocksource_init(base + TIMER_2_BASE, "v2m-timer1");
sp804_clockevents_init(base + TIMER_1_BASE, irq, "v2m-timer0");
}
-static void __init v2m_timer_init(void)
-{
- v2m_sysctl_init(ioremap(V2M_SYSCTL, SZ_4K));
- v2m_sp804_init(ioremap(V2M_TIMER01, SZ_4K), IRQ_V2M_TIMER0);
-}
-
-static struct sys_timer v2m_timer = {
- .init = v2m_timer_init,
-};
-
-
-static DEFINE_SPINLOCK(v2m_cfg_lock);
-
-int v2m_cfg_write(u32 devfn, u32 data)
-{
- /* Configuration interface broken? */
- u32 val;
-
- printk("%s: writing %08x to %08x\n", __func__, data, devfn);
-
- devfn |= SYS_CFG_START | SYS_CFG_WRITE;
-
- spin_lock(&v2m_cfg_lock);
- val = readl(v2m_sysreg_base + V2M_SYS_CFGSTAT);
- writel(val & ~SYS_CFG_COMPLETE, v2m_sysreg_base + V2M_SYS_CFGSTAT);
-
- writel(data, v2m_sysreg_base + V2M_SYS_CFGDATA);
- writel(devfn, v2m_sysreg_base + V2M_SYS_CFGCTRL);
-
- do {
- val = readl(v2m_sysreg_base + V2M_SYS_CFGSTAT);
- } while (val == 0);
- spin_unlock(&v2m_cfg_lock);
-
- return !!(val & SYS_CFG_ERR);
-}
-
-int v2m_cfg_read(u32 devfn, u32 *data)
-{
- u32 val;
-
- devfn |= SYS_CFG_START;
-
- spin_lock(&v2m_cfg_lock);
- writel(0, v2m_sysreg_base + V2M_SYS_CFGSTAT);
- writel(devfn, v2m_sysreg_base + V2M_SYS_CFGCTRL);
-
- mb();
-
- do {
- cpu_relax();
- val = readl(v2m_sysreg_base + V2M_SYS_CFGSTAT);
- } while (val == 0);
-
- *data = readl(v2m_sysreg_base + V2M_SYS_CFGDATA);
- spin_unlock(&v2m_cfg_lock);
-
- return !!(val & SYS_CFG_ERR);
-}
-
-void __init v2m_flags_set(u32 data)
-{
- writel(~0, v2m_sysreg_base + V2M_SYS_FLAGSCLR);
- writel(data, v2m_sysreg_base + V2M_SYS_FLAGSSET);
-}
-
static struct resource v2m_pcie_i2c_resource = {
.start = V2M_SERIAL_BUS_PCI,
@@ -201,6 +117,11 @@ static struct platform_device v2m_eth_device = {
.dev.platform_data = &v2m_eth_config,
};
+static struct regulator_consumer_supply v2m_eth_supplies[] = {
+ REGULATOR_SUPPLY("vddvario", "smsc911x"),
+ REGULATOR_SUPPLY("vdd33a", "smsc911x"),
+};
+
static struct resource v2m_usb_resources[] = {
{
.start = V2M_ISP1761,
@@ -230,14 +151,8 @@ static struct platform_device v2m_usb_device = {
.dev.platform_data = &v2m_usb_config,
};
-static void v2m_flash_set_vpp(struct platform_device *pdev, int on)
-{
- writel(on != 0, v2m_sysreg_base + V2M_SYS_FLASH);
-}
-
static struct physmap_flash_data v2m_flash_data = {
.width = 4,
- .set_vpp = v2m_flash_set_vpp,
};
static struct resource v2m_flash_resources[] = {
@@ -284,14 +199,62 @@ static struct platform_device v2m_cf_device = {
.dev.platform_data = &v2m_pata_data,
};
-static unsigned int v2m_mmci_status(struct device *dev)
-{
- return readl(v2m_sysreg_base + V2M_SYS_MCI) & (1 << 0);
-}
-
static struct mmci_platform_data v2m_mmci_data = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
- .status = v2m_mmci_status,
+ .status = vexpress_get_mci_cardin,
+ .gpio_cd = -1,
+ .gpio_wp = -1,
+};
+
+static struct resource v2m_sysreg_resources[] = {
+ {
+ .start = V2M_SYSREGS,
+ .end = V2M_SYSREGS + 0xfff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device v2m_sysreg_device = {
+ .name = "vexpress-sysreg",
+ .id = -1,
+ .resource = v2m_sysreg_resources,
+ .num_resources = ARRAY_SIZE(v2m_sysreg_resources),
+};
+
+static struct platform_device v2m_muxfpga_device = {
+ .name = "vexpress-muxfpga",
+ .id = 0,
+ .num_resources = 1,
+ .resource = (struct resource []) {
+ VEXPRESS_RES_FUNC(0, 7),
+ }
+};
+
+static struct platform_device v2m_shutdown_device = {
+ .name = "vexpress-shutdown",
+ .id = 0,
+ .num_resources = 1,
+ .resource = (struct resource []) {
+ VEXPRESS_RES_FUNC(0, 8),
+ }
+};
+
+static struct platform_device v2m_reboot_device = {
+ .name = "vexpress-reboot",
+ .id = 0,
+ .num_resources = 1,
+ .resource = (struct resource []) {
+ VEXPRESS_RES_FUNC(0, 9),
+ }
+};
+
+static struct platform_device v2m_dvimode_device = {
+ .name = "vexpress-dvimode",
+ .id = 0,
+ .num_resources = 1,
+ .resource = (struct resource []) {
+ VEXPRESS_RES_FUNC(0, 11),
+ }
};
static AMBA_APB_DEVICE(aaci, "mb:aaci", 0, V2M_AACI, IRQ_V2M_AACI, NULL);
@@ -318,100 +281,17 @@ static struct amba_device *v2m_amba_devs[] __initdata = {
&rtc_device,
};
-
-static long v2m_osc_round(struct clk *clk, unsigned long rate)
-{
- return rate;
-}
-
-static int v2m_osc1_set(struct clk *clk, unsigned long rate)
+static void __init v2m_timer_init(void)
{
- return v2m_cfg_write(SYS_CFG_OSC | SYS_CFG_SITE_MB | 1, rate);
+ vexpress_clk_init(ioremap(V2M_SYSCTL, SZ_4K));
+ v2m_sp804_init(ioremap(V2M_TIMER01, SZ_4K), IRQ_V2M_TIMER0);
}
-static const struct clk_ops osc1_clk_ops = {
- .round = v2m_osc_round,
- .set = v2m_osc1_set,
-};
-
-static struct clk osc1_clk = {
- .ops = &osc1_clk_ops,
- .rate = 24000000,
-};
-
-static struct clk osc2_clk = {
- .rate = 24000000,
-};
-
-static struct clk v2m_sp804_clk = {
- .rate = 1000000,
-};
-
-static struct clk v2m_ref_clk = {
- .rate = 32768,
-};
-
-static struct clk dummy_apb_pclk;
-
-static struct clk_lookup v2m_lookups[] = {
- { /* AMBA bus clock */
- .con_id = "apb_pclk",
- .clk = &dummy_apb_pclk,
- }, { /* UART0 */
- .dev_id = "mb:uart0",
- .clk = &osc2_clk,
- }, { /* UART1 */
- .dev_id = "mb:uart1",
- .clk = &osc2_clk,
- }, { /* UART2 */
- .dev_id = "mb:uart2",
- .clk = &osc2_clk,
- }, { /* UART3 */
- .dev_id = "mb:uart3",
- .clk = &osc2_clk,
- }, { /* KMI0 */
- .dev_id = "mb:kmi0",
- .clk = &osc2_clk,
- }, { /* KMI1 */
- .dev_id = "mb:kmi1",
- .clk = &osc2_clk,
- }, { /* MMC0 */
- .dev_id = "mb:mmci",
- .clk = &osc2_clk,
- }, { /* CLCD */
- .dev_id = "mb:clcd",
- .clk = &osc1_clk,
- }, { /* SP805 WDT */
- .dev_id = "mb:wdt",
- .clk = &v2m_ref_clk,
- }, { /* SP804 timers */
- .dev_id = "sp804",
- .con_id = "v2m-timer0",
- .clk = &v2m_sp804_clk,
- }, { /* SP804 timers */
- .dev_id = "sp804",
- .con_id = "v2m-timer1",
- .clk = &v2m_sp804_clk,
- },
-};
-
static void __init v2m_init_early(void)
{
- ct_desc->init_early();
- clkdev_add_table(v2m_lookups, ARRAY_SIZE(v2m_lookups));
- versatile_sched_clock_init(v2m_sysreg_base + V2M_SYS_24MHZ, 24000000);
-}
-
-static void v2m_power_off(void)
-{
- if (v2m_cfg_write(SYS_CFG_SHUTDOWN | SYS_CFG_SITE_MB, 0))
- printk(KERN_EMERG "Unable to shutdown\n");
-}
-
-static void v2m_restart(char str, const char *cmd)
-{
- if (v2m_cfg_write(SYS_CFG_REBOOT | SYS_CFG_SITE_MB, 0))
- printk(KERN_EMERG "Unable to reboot\n");
+ if (ct_desc->init_early)
+ ct_desc->init_early();
+ versatile_sched_clock_init(vexpress_get_24mhz_clock_base(), 24000000);
}
struct ct_desc *ct_desc;
@@ -428,7 +308,7 @@ static void __init v2m_populate_ct_desc(void)
u32 current_tile_id;
ct_desc = NULL;
- current_tile_id = readl(v2m_sysreg_base + V2M_SYS_PROCID0)
+ current_tile_id = vexpress_get_procid(VEXPRESS_SITE_MASTER)
& V2M_CT_ID_MASK;
for (i = 0; i < ARRAY_SIZE(ct_descs) && !ct_desc; ++i)
@@ -444,7 +324,7 @@ static void __init v2m_populate_ct_desc(void)
static void __init v2m_map_io(void)
{
iotable_init(v2m_io_desc, ARRAY_SIZE(v2m_io_desc));
- v2m_sysreg_base = ioremap(V2M_SYSREGS, SZ_4K);
+ vexpress_sysreg_early_init(ioremap(V2M_SYSREGS, SZ_4K));
v2m_populate_ct_desc();
ct_desc->map_io();
}
@@ -458,6 +338,10 @@ static void __init v2m_init(void)
{
int i;
+ regulator_register_fixed(0, v2m_eth_supplies,
+ ARRAY_SIZE(v2m_eth_supplies));
+
+ platform_device_register(&v2m_sysreg_device);
platform_device_register(&v2m_pcie_i2c_device);
platform_device_register(&v2m_ddc_i2c_device);
platform_device_register(&v2m_flash_device);
@@ -468,224 +352,39 @@ static void __init v2m_init(void)
for (i = 0; i < ARRAY_SIZE(v2m_amba_devs); i++)
amba_device_register(v2m_amba_devs[i], &iomem_resource);
- pm_power_off = v2m_power_off;
+ vexpress_syscfg_device_register(&v2m_muxfpga_device);
+ vexpress_syscfg_device_register(&v2m_shutdown_device);
+ vexpress_syscfg_device_register(&v2m_reboot_device);
+ vexpress_syscfg_device_register(&v2m_dvimode_device);
ct_desc->init_tile();
}
MACHINE_START(VEXPRESS, "ARM-Versatile Express")
.atag_offset = 0x100,
+ .smp = smp_ops(vexpress_smp_ops),
.map_io = v2m_map_io,
.init_early = v2m_init_early,
.init_irq = v2m_init_irq,
- .timer = &v2m_timer,
- .handle_irq = gic_handle_irq,
+ .init_time = v2m_timer_init,
.init_machine = v2m_init,
- .restart = v2m_restart,
MACHINE_END
-#if defined(CONFIG_ARCH_VEXPRESS_DT)
-
-static struct map_desc v2m_rs1_io_desc __initdata = {
- .virtual = V2M_PERIPH,
- .pfn = __phys_to_pfn(0x1c000000),
- .length = SZ_2M,
- .type = MT_DEVICE,
-};
-
-static int __init v2m_dt_scan_memory_map(unsigned long node, const char *uname,
- int depth, void *data)
-{
- const char **map = data;
-
- if (strcmp(uname, "motherboard") != 0)
- return 0;
-
- *map = of_get_flat_dt_prop(node, "arm,v2m-memory-map", NULL);
-
- return 1;
-}
-
-void __init v2m_dt_map_io(void)
-{
- const char *map = NULL;
-
- of_scan_flat_dt(v2m_dt_scan_memory_map, &map);
-
- if (map && strcmp(map, "rs1") == 0)
- iotable_init(&v2m_rs1_io_desc, 1);
- else
- iotable_init(v2m_io_desc, ARRAY_SIZE(v2m_io_desc));
-
-#if defined(CONFIG_SMP)
- vexpress_dt_smp_map_io();
-#endif
-}
-
-static struct clk_lookup v2m_dt_lookups[] = {
- { /* AMBA bus clock */
- .con_id = "apb_pclk",
- .clk = &dummy_apb_pclk,
- }, { /* SP804 timers */
- .dev_id = "sp804",
- .con_id = "v2m-timer0",
- .clk = &v2m_sp804_clk,
- }, { /* SP804 timers */
- .dev_id = "sp804",
- .con_id = "v2m-timer1",
- .clk = &v2m_sp804_clk,
- }, { /* PL180 MMCI */
- .dev_id = "mb:mmci", /* 10005000.mmci */
- .clk = &osc2_clk,
- }, { /* PL050 KMI0 */
- .dev_id = "10006000.kmi",
- .clk = &osc2_clk,
- }, { /* PL050 KMI1 */
- .dev_id = "10007000.kmi",
- .clk = &osc2_clk,
- }, { /* PL011 UART0 */
- .dev_id = "10009000.uart",
- .clk = &osc2_clk,
- }, { /* PL011 UART1 */
- .dev_id = "1000a000.uart",
- .clk = &osc2_clk,
- }, { /* PL011 UART2 */
- .dev_id = "1000b000.uart",
- .clk = &osc2_clk,
- }, { /* PL011 UART3 */
- .dev_id = "1000c000.uart",
- .clk = &osc2_clk,
- }, { /* SP805 WDT */
- .dev_id = "1000f000.wdt",
- .clk = &v2m_ref_clk,
- }, { /* PL111 CLCD */
- .dev_id = "1001f000.clcd",
- .clk = &osc1_clk,
- },
- /* RS1 memory map */
- { /* PL180 MMCI */
- .dev_id = "mb:mmci", /* 1c050000.mmci */
- .clk = &osc2_clk,
- }, { /* PL050 KMI0 */
- .dev_id = "1c060000.kmi",
- .clk = &osc2_clk,
- }, { /* PL050 KMI1 */
- .dev_id = "1c070000.kmi",
- .clk = &osc2_clk,
- }, { /* PL011 UART0 */
- .dev_id = "1c090000.uart",
- .clk = &osc2_clk,
- }, { /* PL011 UART1 */
- .dev_id = "1c0a0000.uart",
- .clk = &osc2_clk,
- }, { /* PL011 UART2 */
- .dev_id = "1c0b0000.uart",
- .clk = &osc2_clk,
- }, { /* PL011 UART3 */
- .dev_id = "1c0c0000.uart",
- .clk = &osc2_clk,
- }, { /* SP805 WDT */
- .dev_id = "1c0f0000.wdt",
- .clk = &v2m_ref_clk,
- }, { /* PL111 CLCD */
- .dev_id = "1c1f0000.clcd",
- .clk = &osc1_clk,
- },
-};
-
-void __init v2m_dt_init_early(void)
-{
- struct device_node *node;
- u32 dt_hbi;
-
- node = of_find_compatible_node(NULL, NULL, "arm,vexpress-sysreg");
- v2m_sysreg_base = of_iomap(node, 0);
- if (WARN_ON(!v2m_sysreg_base))
- return;
-
- /* Confirm board type against DT property, if available */
- if (of_property_read_u32(allnodes, "arm,hbi", &dt_hbi) == 0) {
- u32 misc = readl(v2m_sysreg_base + V2M_SYS_MISC);
- u32 id = readl(v2m_sysreg_base + (misc & SYS_MISC_MASTERSITE ?
- V2M_SYS_PROCID1 : V2M_SYS_PROCID0));
- u32 hbi = id & SYS_PROCIDx_HBI_MASK;
-
- if (WARN_ON(dt_hbi != hbi))
- pr_warning("vexpress: DT HBI (%x) is not matching "
- "hardware (%x)!\n", dt_hbi, hbi);
- }
-
- clkdev_add_table(v2m_dt_lookups, ARRAY_SIZE(v2m_dt_lookups));
-}
-
-static struct of_device_id vexpress_irq_match[] __initdata = {
- { .compatible = "arm,cortex-a9-gic", .data = gic_of_init, },
- {}
-};
-
-static void __init v2m_dt_init_irq(void)
-{
- of_irq_init(vexpress_irq_match);
-}
-
-static void __init v2m_dt_timer_init(void)
-{
- struct device_node *node;
- const char *path;
- int err;
-
- node = of_find_compatible_node(NULL, NULL, "arm,sp810");
- v2m_sysctl_init(of_iomap(node, 0));
-
- err = of_property_read_string(of_aliases, "arm,v2m_timer", &path);
- if (WARN_ON(err))
- return;
- node = of_find_node_by_path(path);
- v2m_sp804_init(of_iomap(node, 0), irq_of_parse_and_map(node, 0));
- if (arch_timer_of_register() != 0)
- twd_local_timer_of_register();
-
- if (arch_timer_sched_clock_init() != 0)
- versatile_sched_clock_init(v2m_sysreg_base + V2M_SYS_24MHZ, 24000000);
-}
-
-static struct sys_timer v2m_dt_timer = {
- .init = v2m_dt_timer_init,
-};
-
-static struct of_dev_auxdata v2m_dt_auxdata_lookup[] __initdata = {
- OF_DEV_AUXDATA("arm,vexpress-flash", V2M_NOR0, "physmap-flash",
- &v2m_flash_data),
- OF_DEV_AUXDATA("arm,primecell", V2M_MMCI, "mb:mmci", &v2m_mmci_data),
- /* RS1 memory map */
- OF_DEV_AUXDATA("arm,vexpress-flash", 0x08000000, "physmap-flash",
- &v2m_flash_data),
- OF_DEV_AUXDATA("arm,primecell", 0x1c050000, "mb:mmci", &v2m_mmci_data),
- {}
-};
-
static void __init v2m_dt_init(void)
{
- l2x0_of_init(0x00400000, 0xfe0fffff);
- of_platform_populate(NULL, of_default_bus_match_table,
- v2m_dt_auxdata_lookup, NULL);
- pm_power_off = v2m_power_off;
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
-const static char *v2m_dt_match[] __initconst = {
+static const char * const v2m_dt_match[] __initconst = {
"arm,vexpress",
NULL,
};
DT_MACHINE_START(VEXPRESS_DT, "ARM-Versatile Express")
.dt_compat = v2m_dt_match,
- .map_io = v2m_dt_map_io,
- .init_early = v2m_dt_init_early,
- .init_irq = v2m_dt_init_irq,
- .timer = &v2m_dt_timer,
+ .l2c_aux_val = 0x00400000,
+ .l2c_aux_mask = 0xfe0fffff,
+ .smp = smp_ops(vexpress_smp_dt_ops),
+ .smp_init = smp_init_ops(vexpress_smp_init_ops),
.init_machine = v2m_dt_init,
- .handle_irq = gic_handle_irq,
- .restart = v2m_restart,
MACHINE_END
-
-#endif
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 15:41:39 +0000