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-rw-r--r--arch/arm/mach-nspire/Kconfig12
-rw-r--r--arch/arm/mach-nspire/Makefile2
-rw-r--r--arch/arm/mach-nspire/clcd.c118
-rw-r--r--arch/arm/mach-nspire/clcd.h14
-rw-r--r--arch/arm/mach-nspire/mmio.h20
-rw-r--r--arch/arm/mach-nspire/nspire.c71
6 files changed, 237 insertions, 0 deletions
diff --git a/arch/arm/mach-nspire/Kconfig b/arch/arm/mach-nspire/Kconfig
new file mode 100644
index 000000000..d4985305c
--- /dev/null
+++ b/arch/arm/mach-nspire/Kconfig
@@ -0,0 +1,12 @@
+config ARCH_NSPIRE
+ bool "TI-NSPIRE based"
+ depends on ARCH_MULTI_V4_V5
+ depends on MMU
+ select CPU_ARM926T
+ select GENERIC_IRQ_CHIP
+ select ARM_AMBA
+ select ARM_VIC
+ select ARM_TIMER_SP804
+ select NSPIRE_TIMER
+ help
+ This enables support for systems using the TI-NSPIRE CPU
diff --git a/arch/arm/mach-nspire/Makefile b/arch/arm/mach-nspire/Makefile
new file mode 100644
index 000000000..1bec256eb
--- /dev/null
+++ b/arch/arm/mach-nspire/Makefile
@@ -0,0 +1,2 @@
+obj-y += nspire.o
+obj-y += clcd.o
diff --git a/arch/arm/mach-nspire/clcd.c b/arch/arm/mach-nspire/clcd.c
new file mode 100644
index 000000000..ea0e5b2ca
--- /dev/null
+++ b/arch/arm/mach-nspire/clcd.c
@@ -0,0 +1,118 @@
+/*
+ * linux/arch/arm/mach-nspire/clcd.c
+ *
+ * Copyright (C) 2013 Daniel Tang <tangrs@tangrs.id.au>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2, as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/of.h>
+#include <linux/amba/bus.h>
+#include <linux/amba/clcd.h>
+#include <linux/dma-mapping.h>
+
+static struct clcd_panel nspire_cx_lcd_panel = {
+ .mode = {
+ .name = "Color LCD",
+ .refresh = 60,
+ .xres = 320,
+ .yres = 240,
+ .sync = 0,
+ .vmode = FB_VMODE_NONINTERLACED,
+ .pixclock = 1,
+ .hsync_len = 6,
+ .vsync_len = 1,
+ .right_margin = 50,
+ .left_margin = 38,
+ .lower_margin = 3,
+ .upper_margin = 17,
+ },
+ .width = 65, /* ~6.50 cm */
+ .height = 49, /* ~4.87 cm */
+ .tim2 = TIM2_IPC,
+ .cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1),
+ .bpp = 16,
+ .caps = CLCD_CAP_565,
+};
+
+static struct clcd_panel nspire_classic_lcd_panel = {
+ .mode = {
+ .name = "Grayscale LCD",
+ .refresh = 60,
+ .xres = 320,
+ .yres = 240,
+ .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ .vmode = FB_VMODE_NONINTERLACED,
+ .pixclock = 1,
+ .hsync_len = 6,
+ .vsync_len = 1,
+ .right_margin = 6,
+ .left_margin = 6,
+ },
+ .width = 71, /* 7.11cm */
+ .height = 53, /* 5.33cm */
+ .tim2 = 0x80007d0,
+ .cntl = CNTL_LCDMONO8,
+ .bpp = 8,
+ .grayscale = 1,
+ .caps = CLCD_CAP_5551,
+};
+
+int nspire_clcd_setup(struct clcd_fb *fb)
+{
+ struct clcd_panel *panel;
+ size_t panel_size;
+ const char *type;
+ dma_addr_t dma;
+ int err;
+
+ BUG_ON(!fb->dev->dev.of_node);
+
+ err = of_property_read_string(fb->dev->dev.of_node, "lcd-type", &type);
+ if (err) {
+ pr_err("CLCD: Could not find lcd-type property\n");
+ return err;
+ }
+
+ if (!strcmp(type, "cx")) {
+ panel = &nspire_cx_lcd_panel;
+ } else if (!strcmp(type, "classic")) {
+ panel = &nspire_classic_lcd_panel;
+ } else {
+ pr_err("CLCD: Unknown lcd-type %s\n", type);
+ return -EINVAL;
+ }
+
+ panel_size = ((panel->mode.xres * panel->mode.yres) * panel->bpp) / 8;
+ panel_size = ALIGN(panel_size, PAGE_SIZE);
+
+ fb->fb.screen_base = dma_alloc_wc(&fb->dev->dev, panel_size, &dma,
+ GFP_KERNEL);
+
+ if (!fb->fb.screen_base) {
+ pr_err("CLCD: unable to map framebuffer\n");
+ return -ENOMEM;
+ }
+
+ fb->fb.fix.smem_start = dma;
+ fb->fb.fix.smem_len = panel_size;
+ fb->panel = panel;
+
+ return 0;
+}
+
+int nspire_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
+{
+ return dma_mmap_wc(&fb->dev->dev, vma, fb->fb.screen_base,
+ fb->fb.fix.smem_start, fb->fb.fix.smem_len);
+}
+
+void nspire_clcd_remove(struct clcd_fb *fb)
+{
+ dma_free_wc(&fb->dev->dev, fb->fb.fix.smem_len, fb->fb.screen_base,
+ fb->fb.fix.smem_start);
+}
diff --git a/arch/arm/mach-nspire/clcd.h b/arch/arm/mach-nspire/clcd.h
new file mode 100644
index 000000000..8c33d2c18
--- /dev/null
+++ b/arch/arm/mach-nspire/clcd.h
@@ -0,0 +1,14 @@
+/*
+ * linux/arch/arm/mach-nspire/clcd.h
+ *
+ * Copyright (C) 2013 Daniel Tang <tangrs@tangrs.id.au>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2, as
+ * published by the Free Software Foundation.
+ *
+ */
+
+int nspire_clcd_setup(struct clcd_fb *fb);
+int nspire_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma);
+void nspire_clcd_remove(struct clcd_fb *fb);
diff --git a/arch/arm/mach-nspire/mmio.h b/arch/arm/mach-nspire/mmio.h
new file mode 100644
index 000000000..8813471af
--- /dev/null
+++ b/arch/arm/mach-nspire/mmio.h
@@ -0,0 +1,20 @@
+/*
+ * linux/arch/arm/mach-nspire/mmio.h
+ *
+ * Copyright (C) 2013 Daniel Tang <tangrs@tangrs.id.au>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2, as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#define NSPIRE_MISC_PHYS_BASE 0x900A0000
+#define NSPIRE_MISC_HWRESET 0x08
+
+#define NSPIRE_PWR_PHYS_BASE 0x900B0000
+#define NSPIRE_PWR_VIRT_BASE 0xFEEB0000
+#define NSPIRE_PWR_BUS_DISABLE1 0x18
+#define NSPIRE_PWR_BUS_DISABLE2 0x20
+
+#define NSPIRE_LCD_PHYS_BASE 0xC0000000
diff --git a/arch/arm/mach-nspire/nspire.c b/arch/arm/mach-nspire/nspire.c
new file mode 100644
index 000000000..8584cdd1c
--- /dev/null
+++ b/arch/arm/mach-nspire/nspire.c
@@ -0,0 +1,71 @@
+/*
+ * linux/arch/arm/mach-nspire/nspire.c
+ *
+ * Copyright (C) 2013 Daniel Tang <tangrs@tangrs.id.au>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2, as
+ * published by the Free Software Foundation.
+ *
+ */
+#include <linux/init.h>
+#include <linux/of_irq.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/irqchip.h>
+#include <linux/irqchip/arm-vic.h>
+#include <linux/clkdev.h>
+#include <linux/amba/bus.h>
+#include <linux/amba/clcd.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach-types.h>
+#include <asm/mach/map.h>
+
+#include "mmio.h"
+#include "clcd.h"
+
+static const char *const nspire_dt_match[] __initconst = {
+ "ti,nspire",
+ "ti,nspire-cx",
+ "ti,nspire-tp",
+ "ti,nspire-clp",
+ NULL,
+};
+
+static struct clcd_board nspire_clcd_data = {
+ .name = "LCD",
+ .caps = CLCD_CAP_5551 | CLCD_CAP_565,
+ .check = clcdfb_check,
+ .decode = clcdfb_decode,
+ .setup = nspire_clcd_setup,
+ .mmap = nspire_clcd_mmap,
+ .remove = nspire_clcd_remove,
+};
+
+
+static struct of_dev_auxdata nspire_auxdata[] __initdata = {
+ OF_DEV_AUXDATA("arm,pl111", NSPIRE_LCD_PHYS_BASE,
+ NULL, &nspire_clcd_data),
+ { }
+};
+
+static void __init nspire_init(void)
+{
+ of_platform_default_populate(NULL, nspire_auxdata, NULL);
+}
+
+static void nspire_restart(enum reboot_mode mode, const char *cmd)
+{
+ void __iomem *base = ioremap(NSPIRE_MISC_PHYS_BASE, SZ_4K);
+ if (!base)
+ return;
+
+ writel(2, base + NSPIRE_MISC_HWRESET);
+}
+
+DT_MACHINE_START(NSPIRE, "TI-NSPIRE")
+ .dt_compat = nspire_dt_match,
+ .init_machine = nspire_init,
+ .restart = nspire_restart,
+MACHINE_END
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-30 10:51:39 +0000