* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License.
*/
-#include <linux/types.h>
#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <linux/platform_device.h>
-#include <linux/dma-mapping.h>
-#include <linux/string.h>
-#include <linux/device.h>
-#include <linux/amba/bus.h>
-#include <linux/amba/kmi.h>
-#include <linux/amba/clcd.h>
-#include <linux/platform_data/video-clcd-versatile.h>
#include <linux/amba/mmci.h>
#include <linux/io.h>
#include <linux/irqchip.h>
-#include <linux/gfp.h>
#include <linux/of_irq.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
#include <linux/sched_clock.h>
+#include <linux/regmap.h>
+#include <linux/mfd/syscon.h>
-#include <asm/setup.h>
-#include <asm/mach-types.h>
#include <asm/mach/arch.h>
-#include <asm/mach/irq.h>
#include <asm/mach/map.h>
-#include <asm/mach/time.h>
#include "hardware.h"
#include "cm.h"
#include "common.h"
+/* Base address to the core module header */
+static struct regmap *cm_map;
/* Base address to the CP controller */
static void __iomem *intcp_con_base;
-#define INTCP_PA_CLCD_BASE 0xc0000000
+#define CM_COUNTER_OFFSET 0x28
/*
* Logical Physical
- * f1000000 10000000 Core module registers
- * f1300000 13000000 Counter/Timer
* f1400000 14000000 Interrupt controller
* f1600000 16000000 UART 0
- * f1700000 17000000 UART 1
- * f1a00000 1a000000 Debug LEDs
- * fc900000 c9000000 GPIO
* fca00000 ca000000 SIC
*/
static struct map_desc intcp_io_desc[] __initdata __maybe_unused = {
{
- .virtual = IO_ADDRESS(INTEGRATOR_HDR_BASE),
- .pfn = __phys_to_pfn(INTEGRATOR_HDR_BASE),
- .length = SZ_4K,
- .type = MT_DEVICE
- }, {
- .virtual = IO_ADDRESS(INTEGRATOR_CT_BASE),
- .pfn = __phys_to_pfn(INTEGRATOR_CT_BASE),
- .length = SZ_4K,
- .type = MT_DEVICE
- }, {
.virtual = IO_ADDRESS(INTEGRATOR_IC_BASE),
.pfn = __phys_to_pfn(INTEGRATOR_IC_BASE),
.length = SZ_4K,
.pfn = __phys_to_pfn(INTEGRATOR_UART0_BASE),
.length = SZ_4K,
.type = MT_DEVICE
- }, {
- .virtual = IO_ADDRESS(INTEGRATOR_DBG_BASE),
- .pfn = __phys_to_pfn(INTEGRATOR_DBG_BASE),
- .length = SZ_4K,
- .type = MT_DEVICE
- }, {
- .virtual = IO_ADDRESS(INTEGRATOR_CP_GPIO_BASE),
- .pfn = __phys_to_pfn(INTEGRATOR_CP_GPIO_BASE),
- .length = SZ_4K,
- .type = MT_DEVICE
}, {
.virtual = IO_ADDRESS(INTEGRATOR_CP_SIC_BASE),
.pfn = __phys_to_pfn(INTEGRATOR_CP_SIC_BASE),
.gpio_cd = -1,
};
-/*
- * CLCD support
- */
-/*
- * Ensure VGA is selected.
- */
-static void cp_clcd_enable(struct clcd_fb *fb)
-{
- struct fb_var_screeninfo *var = &fb->fb.var;
- u32 val = CM_CTRL_STATIC1 | CM_CTRL_STATIC2
- | CM_CTRL_LCDEN0 | CM_CTRL_LCDEN1;
-
- if (var->bits_per_pixel <= 8 ||
- (var->bits_per_pixel == 16 && var->green.length == 5))
- /* Pseudocolor, RGB555, BGR555 */
- val |= CM_CTRL_LCDMUXSEL_VGA555_TFT555;
- else if (fb->fb.var.bits_per_pixel <= 16)
- /* truecolor RGB565 */
- val |= CM_CTRL_LCDMUXSEL_VGA565_TFT555;
- else
- val = 0; /* no idea for this, don't trust the docs */
-
- cm_control(CM_CTRL_LCDMUXSEL_MASK|
- CM_CTRL_LCDEN0|
- CM_CTRL_LCDEN1|
- CM_CTRL_STATIC1|
- CM_CTRL_STATIC2|
- CM_CTRL_STATIC|
- CM_CTRL_n24BITEN, val);
-}
-
-static int cp_clcd_setup(struct clcd_fb *fb)
-{
- fb->panel = versatile_clcd_get_panel("VGA");
- if (!fb->panel)
- return -EINVAL;
-
- return versatile_clcd_setup_dma(fb, SZ_1M);
-}
-
-static struct clcd_board clcd_data = {
- .name = "Integrator/CP",
- .caps = CLCD_CAP_5551 | CLCD_CAP_RGB565 | CLCD_CAP_888,
- .check = clcdfb_check,
- .decode = clcdfb_decode,
- .enable = cp_clcd_enable,
- .setup = cp_clcd_setup,
- .mmap = versatile_clcd_mmap_dma,
- .remove = versatile_clcd_remove_dma,
-};
-
-#define REFCOUNTER (__io_address(INTEGRATOR_HDR_BASE) + 0x28)
-
static u64 notrace intcp_read_sched_clock(void)
{
- return readl(REFCOUNTER);
+ unsigned int val;
+
+ /* MMIO so discard return code */
+ regmap_read(cm_map, CM_COUNTER_OFFSET, &val);
+ return val;
}
static void __init intcp_init_early(void)
{
+ cm_map = syscon_regmap_lookup_by_compatible("arm,core-module-integrator");
+ if (IS_ERR(cm_map))
+ return;
sched_clock_register(intcp_read_sched_clock, 32, 24000000);
}
* and enforce the bus names since these are used for clock lookups.
*/
static struct of_dev_auxdata intcp_auxdata_lookup[] __initdata = {
- OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_RTC_BASE,
- "rtc", NULL),
- OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_UART0_BASE,
- "uart0", NULL),
- OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_UART1_BASE,
- "uart1", NULL),
- OF_DEV_AUXDATA("arm,primecell", KMI0_BASE,
- "kmi0", NULL),
- OF_DEV_AUXDATA("arm,primecell", KMI1_BASE,
- "kmi1", NULL),
OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_CP_MMC_BASE,
"mmci", &mmc_data),
- OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_CP_AACI_BASE,
- "aaci", &mmc_data),
- OF_DEV_AUXDATA("arm,primecell", INTCP_PA_CLCD_BASE,
- "clcd", &clcd_data),
{ /* sentinel */ },
};
projects / cascardo / linux.git / blobdiff