From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Mon, 6 May 2024 03:02:30 +0200
Subject: Adding upstream version 4.19.249.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 arch/arm/mach-sa1100/shannon.c | 148 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 148 insertions(+)
 create mode 100644 arch/arm/mach-sa1100/shannon.c

(limited to 'arch/arm/mach-sa1100/shannon.c')

diff --git a/arch/arm/mach-sa1100/shannon.c b/arch/arm/mach-sa1100/shannon.c
new file mode 100644
index 000000000..22f7fe0b8
--- /dev/null
+++ b/arch/arm/mach-sa1100/shannon.c
@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * linux/arch/arm/mach-sa1100/shannon.c
+ */
+
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/gpio/machine.h>
+#include <linux/kernel.h>
+#include <linux/platform_data/sa11x0-serial.h>
+#include <linux/tty.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/regulator/fixed.h>
+#include <linux/regulator/machine.h>
+
+#include <video/sa1100fb.h>
+
+#include <mach/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/setup.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+#include <asm/mach/map.h>
+#include <linux/platform_data/mfd-mcp-sa11x0.h>
+#include <mach/shannon.h>
+#include <mach/irqs.h>
+
+#include "generic.h"
+
+static struct mtd_partition shannon_partitions[] = {
+	{
+		.name		= "BLOB boot loader",
+		.offset		= 0,
+		.size		= 0x20000
+	},
+	{
+		.name		= "kernel",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= 0xe0000
+	},
+	{
+		.name		= "initrd",
+		.offset		= MTDPART_OFS_APPEND,	
+		.size		= MTDPART_SIZ_FULL
+	}
+};
+
+static struct flash_platform_data shannon_flash_data = {
+	.map_name	= "cfi_probe",
+	.parts		= shannon_partitions,
+	.nr_parts	= ARRAY_SIZE(shannon_partitions),
+};
+
+static struct resource shannon_flash_resource =
+	DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_4M);
+
+static struct mcp_plat_data shannon_mcp_data = {
+	.mccr0		= MCCR0_ADM,
+	.sclk_rate	= 11981000,
+};
+
+static struct sa1100fb_mach_info shannon_lcd_info = {
+	.pixclock	= 152500,	.bpp		= 8,
+	.xres		= 640,		.yres		= 480,
+
+	.hsync_len	= 4,		.vsync_len	= 3,
+	.left_margin	= 2,		.upper_margin	= 0,
+	.right_margin	= 1,		.lower_margin	= 0,
+
+	.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+
+	.lccr0		= LCCR0_Color | LCCR0_Dual | LCCR0_Pas,
+	.lccr3		= LCCR3_ACBsDiv(512),
+};
+
+static struct gpiod_lookup_table shannon_pcmcia0_gpio_table = {
+	.dev_id = "sa11x0-pcmcia.0",
+	.table = {
+		GPIO_LOOKUP("gpio", 24, "detect", GPIO_ACTIVE_LOW),
+		GPIO_LOOKUP("gpio", 26, "ready", GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
+
+static struct gpiod_lookup_table shannon_pcmcia1_gpio_table = {
+	.dev_id = "sa11x0-pcmcia.1",
+	.table = {
+		GPIO_LOOKUP("gpio", 25, "detect", GPIO_ACTIVE_LOW),
+		GPIO_LOOKUP("gpio", 27, "ready", GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
+
+static struct regulator_consumer_supply shannon_cf_vcc_consumers[] = {
+	REGULATOR_SUPPLY("vcc", "sa11x0-pcmcia.0"),
+	REGULATOR_SUPPLY("vcc", "sa11x0-pcmcia.1"),
+};
+
+static struct fixed_voltage_config shannon_cf_vcc_pdata __initdata = {
+	.supply_name = "cf-power",
+	.microvolts = 3300000,
+	.enabled_at_boot = 1,
+	.gpio = -EINVAL,
+};
+
+static void __init shannon_init(void)
+{
+	sa11x0_register_fixed_regulator(0, &shannon_cf_vcc_pdata,
+					shannon_cf_vcc_consumers,
+					ARRAY_SIZE(shannon_cf_vcc_consumers));
+	sa11x0_register_pcmcia(0, &shannon_pcmcia0_gpio_table);
+	sa11x0_register_pcmcia(1, &shannon_pcmcia1_gpio_table);
+	sa11x0_ppc_configure_mcp();
+	sa11x0_register_lcd(&shannon_lcd_info);
+	sa11x0_register_mtd(&shannon_flash_data, &shannon_flash_resource, 1);
+	sa11x0_register_mcp(&shannon_mcp_data);
+}
+
+static void __init shannon_map_io(void)
+{
+	sa1100_map_io();
+
+	sa1100_register_uart(0, 3);
+	sa1100_register_uart(1, 1);
+
+	Ser1SDCR0 |= SDCR0_SUS;
+	GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD);
+	GPDR |= GPIO_UART_TXD | SHANNON_GPIO_CODEC_RESET;
+	GPDR &= ~GPIO_UART_RXD;
+	PPAR |= PPAR_UPR;
+
+	/* reset the codec */
+	GPCR = SHANNON_GPIO_CODEC_RESET;
+	GPSR = SHANNON_GPIO_CODEC_RESET;
+}
+
+MACHINE_START(SHANNON, "Shannon (AKA: Tuxscreen)")
+	.atag_offset	= 0x100,
+	.map_io		= shannon_map_io,
+	.nr_irqs	= SA1100_NR_IRQS,
+	.init_irq	= sa1100_init_irq,
+	.init_time	= sa1100_timer_init,
+	.init_machine	= shannon_init,
+	.init_late	= sa11x0_init_late,
+	.restart	= sa11x0_restart,
+MACHINE_END
-- 
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