#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/list.h>
-#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/sysdev.h>
+#include <linux/amba/bus.h>
+#include <linux/amba/kmi.h>
+#include <linux/amba/clcd.h>
#include <asm/hardware.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
-#include <asm/hardware/amba.h>
-#include <asm/hardware/amba_kmi.h>
+#include <asm/hardware/icst525.h>
+#include <asm/arch/cm.h>
#include <asm/arch/lm.h>
#include <asm/mach/arch.h>
#include <asm/mach/irq.h>
#include <asm/mach/mmc.h>
#include <asm/mach/map.h>
+#include <asm/mach/time.h>
+
+#include "common.h"
+#include "clock.h"
#define INTCP_PA_MMC_BASE 0x1c000000
#define INTCP_PA_AACI_BASE 0x1d000000
#define INTCP_PA_FLASH_BASE 0x24000000
#define INTCP_FLASH_SIZE SZ_32M
+#define INTCP_PA_CLCD_BASE 0xc0000000
+
#define INTCP_VA_CIC_BASE 0xf1000040
#define INTCP_VA_PIC_BASE 0xf1400000
#define INTCP_VA_SIC_BASE 0xfca00000
*/
static struct map_desc intcp_io_desc[] __initdata = {
- { IO_ADDRESS(INTEGRATOR_HDR_BASE), INTEGRATOR_HDR_BASE, SZ_4K, MT_DEVICE },
- { IO_ADDRESS(INTEGRATOR_SC_BASE), INTEGRATOR_SC_BASE, SZ_4K, MT_DEVICE },
- { IO_ADDRESS(INTEGRATOR_EBI_BASE), INTEGRATOR_EBI_BASE, SZ_4K, MT_DEVICE },
- { IO_ADDRESS(INTEGRATOR_CT_BASE), INTEGRATOR_CT_BASE, SZ_4K, MT_DEVICE },
- { IO_ADDRESS(INTEGRATOR_IC_BASE), INTEGRATOR_IC_BASE, SZ_4K, MT_DEVICE },
- { IO_ADDRESS(INTEGRATOR_UART0_BASE), INTEGRATOR_UART0_BASE, SZ_4K, MT_DEVICE },
- { IO_ADDRESS(INTEGRATOR_UART1_BASE), INTEGRATOR_UART1_BASE, SZ_4K, MT_DEVICE },
- { IO_ADDRESS(INTEGRATOR_DBG_BASE), INTEGRATOR_DBG_BASE, SZ_4K, MT_DEVICE },
- { IO_ADDRESS(INTEGRATOR_GPIO_BASE), INTEGRATOR_GPIO_BASE, SZ_4K, MT_DEVICE },
- { 0xfc900000, 0xc9000000, SZ_4K, MT_DEVICE },
- { 0xfca00000, 0xca000000, SZ_4K, MT_DEVICE },
- { 0xfcb00000, 0xcb000000, SZ_4K, MT_DEVICE },
+ {
+ .virtual = IO_ADDRESS(INTEGRATOR_HDR_BASE),
+ .pfn = __phys_to_pfn(INTEGRATOR_HDR_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE
+ }, {
+ .virtual = IO_ADDRESS(INTEGRATOR_SC_BASE),
+ .pfn = __phys_to_pfn(INTEGRATOR_SC_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE
+ }, {
+ .virtual = IO_ADDRESS(INTEGRATOR_EBI_BASE),
+ .pfn = __phys_to_pfn(INTEGRATOR_EBI_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,
+ .type = MT_DEVICE
+ }, {
+ .virtual = IO_ADDRESS(INTEGRATOR_UART0_BASE),
+ .pfn = __phys_to_pfn(INTEGRATOR_UART0_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE
+ }, {
+ .virtual = IO_ADDRESS(INTEGRATOR_UART1_BASE),
+ .pfn = __phys_to_pfn(INTEGRATOR_UART1_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_GPIO_BASE),
+ .pfn = __phys_to_pfn(INTEGRATOR_GPIO_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE
+ }, {
+ .virtual = 0xfca00000,
+ .pfn = __phys_to_pfn(0xca000000),
+ .length = SZ_4K,
+ .type = MT_DEVICE
+ }, {
+ .virtual = 0xfcb00000,
+ .pfn = __phys_to_pfn(0xcb000000),
+ .length = SZ_4K,
+ .type = MT_DEVICE
+ }
};
static void __init intcp_map_io(void)
irq += IRQ_SIC_START;
desc = irq_desc + irq;
- desc->handle(irq, desc, regs);
+ desc_handle_irq(irq, desc, regs);
} while (status);
}
for (i = IRQ_PIC_START; i <= IRQ_PIC_END; i++) {
if (i == 11)
i = 22;
- if (i == IRQ_CP_CPPLDINT)
- i++;
if (i == 29)
break;
set_irq_chip(i, &pic_chip);
set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
}
- set_irq_handler(IRQ_CP_CPPLDINT, sic_handle_irq);
- pic_unmask_irq(IRQ_CP_CPPLDINT);
+ set_irq_chained_handler(IRQ_CP_CPPLDINT, sic_handle_irq);
+}
+
+/*
+ * Clock handling
+ */
+#define CM_LOCK (IO_ADDRESS(INTEGRATOR_HDR_BASE)+INTEGRATOR_HDR_LOCK_OFFSET)
+#define CM_AUXOSC (IO_ADDRESS(INTEGRATOR_HDR_BASE)+0x1c)
+
+static const struct icst525_params cp_auxvco_params = {
+ .ref = 24000,
+ .vco_max = 320000,
+ .vd_min = 8,
+ .vd_max = 263,
+ .rd_min = 3,
+ .rd_max = 65,
+};
+
+static void cp_auxvco_set(struct clk *clk, struct icst525_vco vco)
+{
+ u32 val;
+
+ val = readl(CM_AUXOSC) & ~0x7ffff;
+ val |= vco.v | (vco.r << 9) | (vco.s << 16);
+
+ writel(0xa05f, CM_LOCK);
+ writel(val, CM_AUXOSC);
+ writel(0, CM_LOCK);
}
+static struct clk cp_clcd_clk = {
+ .name = "CLCDCLK",
+ .params = &cp_auxvco_params,
+ .setvco = cp_auxvco_set,
+};
+
+static struct clk cp_mmci_clk = {
+ .name = "MCLK",
+ .rate = 14745600,
+};
+
/*
* Flash handling.
*/
}
static struct mmc_platform_data mmc_data = {
- .mclk = 33000000,
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.status = mmc_status,
};
.periphid = 0,
};
+
+/*
+ * CLCD support
+ */
+static struct clcd_panel vga = {
+ .mode = {
+ .name = "VGA",
+ .refresh = 60,
+ .xres = 640,
+ .yres = 480,
+ .pixclock = 39721,
+ .left_margin = 40,
+ .right_margin = 24,
+ .upper_margin = 32,
+ .lower_margin = 11,
+ .hsync_len = 96,
+ .vsync_len = 2,
+ .sync = 0,
+ .vmode = FB_VMODE_NONINTERLACED,
+ },
+ .width = -1,
+ .height = -1,
+ .tim2 = TIM2_BCD | TIM2_IPC,
+ .cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1),
+ .bpp = 16,
+ .grayscale = 0,
+};
+
+/*
+ * Ensure VGA is selected.
+ */
+static void cp_clcd_enable(struct clcd_fb *fb)
+{
+ u32 val;
+
+ if (fb->fb.var.bits_per_pixel <= 8)
+ val = CM_CTRL_LCDMUXSEL_VGA_8421BPP;
+ else if (fb->fb.var.bits_per_pixel <= 16)
+ val = CM_CTRL_LCDMUXSEL_VGA_16BPP
+ | CM_CTRL_LCDEN0 | CM_CTRL_LCDEN1
+ | CM_CTRL_STATIC1 | CM_CTRL_STATIC2;
+ 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 unsigned long framesize = SZ_1M;
+
+static int cp_clcd_setup(struct clcd_fb *fb)
+{
+ dma_addr_t dma;
+
+ fb->panel = &vga;
+
+ fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, framesize,
+ &dma, GFP_KERNEL);
+ if (!fb->fb.screen_base) {
+ printk(KERN_ERR "CLCD: unable to map framebuffer\n");
+ return -ENOMEM;
+ }
+
+ fb->fb.fix.smem_start = dma;
+ fb->fb.fix.smem_len = framesize;
+
+ return 0;
+}
+
+static int cp_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
+{
+ return dma_mmap_writecombine(&fb->dev->dev, vma,
+ fb->fb.screen_base,
+ fb->fb.fix.smem_start,
+ fb->fb.fix.smem_len);
+}
+
+static void cp_clcd_remove(struct clcd_fb *fb)
+{
+ dma_free_writecombine(&fb->dev->dev, fb->fb.fix.smem_len,
+ fb->fb.screen_base, fb->fb.fix.smem_start);
+}
+
+static struct clcd_board clcd_data = {
+ .name = "Integrator/CP",
+ .check = clcdfb_check,
+ .decode = clcdfb_decode,
+ .enable = cp_clcd_enable,
+ .setup = cp_clcd_setup,
+ .mmap = cp_clcd_mmap,
+ .remove = cp_clcd_remove,
+};
+
+static struct amba_device clcd_device = {
+ .dev = {
+ .bus_id = "mb:c0",
+ .coherent_dma_mask = ~0,
+ .platform_data = &clcd_data,
+ },
+ .res = {
+ .start = INTCP_PA_CLCD_BASE,
+ .end = INTCP_PA_CLCD_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ .dma_mask = ~0,
+ .irq = { IRQ_CP_CLCDCINT, NO_IRQ },
+ .periphid = 0,
+};
+
static struct amba_device *amba_devs[] __initdata = {
&mmc_device,
&aaci_device,
+ &clcd_device,
};
static void __init intcp_init(void)
{
int i;
+ clk_register(&cp_clcd_clk);
+ clk_register(&cp_mmci_clk);
+
platform_add_devices(intcp_devs, ARRAY_SIZE(intcp_devs));
for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
}
}
+#define TIMER_CTRL_IE (1 << 5) /* Interrupt Enable */
+
+static void __init intcp_timer_init(void)
+{
+ integrator_time_init(1000000 / HZ, TIMER_CTRL_IE);
+}
+
+static struct sys_timer cp_timer = {
+ .init = intcp_timer_init,
+ .offset = integrator_gettimeoffset,
+};
+
MACHINE_START(CINTEGRATOR, "ARM-IntegratorCP")
- MAINTAINER("ARM Ltd/Deep Blue Solutions Ltd")
- BOOT_MEM(0x00000000, 0x16000000, 0xf1600000)
- BOOT_PARAMS(0x00000100)
- MAPIO(intcp_map_io)
- INITIRQ(intcp_init_irq)
- INIT_MACHINE(intcp_init)
+ /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
+ .phys_io = 0x16000000,
+ .io_pg_offst = ((0xf1600000) >> 18) & 0xfffc,
+ .boot_params = 0x00000100,
+ .map_io = intcp_map_io,
+ .init_irq = intcp_init_irq,
+ .timer = &cp_timer,
+ .init_machine = intcp_init,
MACHINE_END