Revert "powerpc: ppc4xx: remove lwmon5 support"

This reverts commit 8fe11b8901a31d11990488c82bc23612589d57be.

I'll add support to lwmon5 in the next patch and will remove
support for the broken lcd4_lwmon5 as well.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>

1 files changed, 558 insertions, 0 deletions

diff --git a/board/lwmon5/lwmon5.c b/board/lwmon5/lwmon5.c
new file mode 100644
index 0000000000..e9aa0b77de
--- /dev/null
+++ b/board/lwmon5/lwmon5.c
@@ -0,0 +1,558 @@
+/*
+ * (C) Copyright 2007-2013
+ * Stefan Roese, DENX Software Engineering, sr@denx.de.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/ppc440.h>
+#include <asm/processor.h>
+#include <asm/ppc4xx-gpio.h>
+#include <asm/io.h>
+#include <post.h>
+#include <flash.h>
+#include <mtd/cfi_flash.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static phys_addr_t lwmon5_cfi_flash_bank_addr[2] = CONFIG_SYS_FLASH_BANKS_LIST;
+
+ulong flash_get_size(ulong base, int banknum);
+int misc_init_r_kbd(void);
+
+int board_early_init_f(void)
+{
+	u32 sdr0_pfc1, sdr0_pfc2;
+	u32 reg;
+
+	/* PLB Write pipelining disabled. Denali Core workaround */
+	mtdcr(PLB4A0_ACR, 0xDE000000);
+	mtdcr(PLB4A1_ACR, 0xDE000000);
+
+	/*--------------------------------------------------------------------
+	 * Setup the interrupt controller polarities, triggers, etc.
+	 *-------------------------------------------------------------------*/
+	mtdcr(UIC0SR, 0xffffffff);  /* clear all. if write with 1 then the status is cleared  */
+	mtdcr(UIC0ER, 0x00000000);  /* disable all */
+	mtdcr(UIC0CR, 0x00000000);  /* we have not critical interrupts at the moment */
+	mtdcr(UIC0PR, 0xFFBFF1EF);  /* Adjustment of the polarity */
+	mtdcr(UIC0TR, 0x00000900);  /* per ref-board manual */
+	mtdcr(UIC0VR, 0x00000000);  /* int31 highest, base=0x000 is within DDRAM */
+	mtdcr(UIC0SR, 0xffffffff);  /* clear all */
+
+	mtdcr(UIC1SR, 0xffffffff);  /* clear all */
+	mtdcr(UIC1ER, 0x00000000);  /* disable all */
+	mtdcr(UIC1CR, 0x00000000);  /* all non-critical */
+	mtdcr(UIC1PR, 0xFFFFC6A5);  /* Adjustment of the polarity */
+	mtdcr(UIC1TR, 0x60000040);  /* per ref-board manual */
+	mtdcr(UIC1VR, 0x00000000);  /* int31 highest, base=0x000 is within DDRAM */
+	mtdcr(UIC1SR, 0xffffffff);  /* clear all */
+
+	mtdcr(UIC2SR, 0xffffffff);  /* clear all */
+	mtdcr(UIC2ER, 0x00000000);  /* disable all */
+	mtdcr(UIC2CR, 0x00000000);  /* all non-critical */
+	mtdcr(UIC2PR, 0x27C00000);  /* Adjustment of the polarity */
+	mtdcr(UIC2TR, 0x3C000000);  /* per ref-board manual */
+	mtdcr(UIC2VR, 0x00000000);  /* int31 highest, base=0x000 is within DDRAM */
+	mtdcr(UIC2SR, 0xffffffff);  /* clear all */
+
+	/* Trace Pins are disabled. SDR0_PFC0 Register */
+	mtsdr(SDR0_PFC0, 0x0);
+
+	/* select Ethernet pins */
+	mfsdr(SDR0_PFC1, sdr0_pfc1);
+	/* SMII via ZMII */
+	sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SELECT_MASK) |
+		SDR0_PFC1_SELECT_CONFIG_6;
+	mfsdr(SDR0_PFC2, sdr0_pfc2);
+	sdr0_pfc2 = (sdr0_pfc2 & ~SDR0_PFC2_SELECT_MASK) |
+		SDR0_PFC2_SELECT_CONFIG_6;
+
+	/* enable SPI (SCP) */
+	sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SIS_MASK) | SDR0_PFC1_SIS_SCP_SEL;
+
+	mtsdr(SDR0_PFC2, sdr0_pfc2);
+	mtsdr(SDR0_PFC1, sdr0_pfc1);
+
+	mtsdr(SDR0_PFC4, 0x80000000);
+
+	/* PCI arbiter disabled */
+	/* PCI Host Configuration disbaled */
+	mfsdr(SDR0_PCI0, reg);
+	reg = 0;
+	mtsdr(SDR0_PCI0, 0x00000000 | reg);
+
+	gpio_write_bit(CONFIG_SYS_GPIO_FLASH_WP, 1);
+
+#if CONFIG_POST & CONFIG_SYS_POST_BSPEC1
+	/* enable the LSB transmitter */
+	gpio_write_bit(CONFIG_SYS_GPIO_LSB_ENABLE, 1);
+	/* enable the CAN transmitter */
+	gpio_write_bit(CONFIG_SYS_GPIO_CAN_ENABLE, 1);
+
+	reg = 0; /* reuse as counter */
+	out_be32((void *)CONFIG_SYS_DSPIC_TEST_ADDR,
+		in_be32((void *)CONFIG_SYS_DSPIC_TEST_ADDR)
+			& ~CONFIG_SYS_DSPIC_TEST_MASK);
+	while (gpio_read_in_bit(CONFIG_SYS_GPIO_DSPIC_READY) && reg++ < 1000) {
+		udelay(1000);
+	}
+	if (gpio_read_in_bit(CONFIG_SYS_GPIO_DSPIC_READY)) {
+		/* set "boot error" flag */
+		out_be32((void *)CONFIG_SYS_DSPIC_TEST_ADDR,
+			in_be32((void *)CONFIG_SYS_DSPIC_TEST_ADDR) |
+			CONFIG_SYS_DSPIC_TEST_MASK);
+	}
+#endif
+
+	/*
+	 * Reset PHY's:
+	 * The PHY's need a 2nd reset pulse, since the MDIO address is latched
+	 * upon reset, and with the first reset upon powerup, the addresses are
+	 * not latched reliable, since the IRQ line is multiplexed with an
+	 * MDIO address. A 2nd reset at this time will make sure, that the
+	 * correct address is latched.
+	 */
+	gpio_write_bit(CONFIG_SYS_GPIO_PHY0_RST, 1);
+	gpio_write_bit(CONFIG_SYS_GPIO_PHY1_RST, 1);
+	udelay(1000);
+	gpio_write_bit(CONFIG_SYS_GPIO_PHY0_RST, 0);
+	gpio_write_bit(CONFIG_SYS_GPIO_PHY1_RST, 0);
+	udelay(1000);
+	gpio_write_bit(CONFIG_SYS_GPIO_PHY0_RST, 1);
+	gpio_write_bit(CONFIG_SYS_GPIO_PHY1_RST, 1);
+
+	return 0;
+}
+
+/*
+ * Override weak default with board specific version
+ */
+phys_addr_t cfi_flash_bank_addr(int bank)
+{
+	return lwmon5_cfi_flash_bank_addr[bank];
+}
+
+/*
+ * Override the weak default mapping function with a board specific one
+ */
+u32 flash_get_bank_size(int cs, int idx)
+{
+	return flash_info[idx].size;
+}
+
+int board_early_init_r(void)
+{
+	u32 val0, val1;
+
+	/*
+	 * lwmon5 is manufactured in 2 different board versions:
+	 * The lwmon5a board has 64MiB NOR flash instead of the
+	 * 128MiB of the original lwmon5. Unfortunately the CFI driver
+	 * will report 2 banks of 64MiB even for the smaller flash
+	 * chip, since the bank is mirrored. To fix this, we bring
+	 * one bank into CFI query mode and read its response. This
+	 * enables us to detect the real number of flash devices/
+	 * banks which will be used later on by the common CFI driver.
+	 */
+
+	/* Put bank 0 into CFI command mode and read */
+	out_be32((void *)CONFIG_SYS_FLASH0, 0x00980098);
+	val0 = in_be32((void *)CONFIG_SYS_FLASH0 + FLASH_OFFSET_CFI_RESP);
+	val1 = in_be32((void *)CONFIG_SYS_FLASH1 + FLASH_OFFSET_CFI_RESP);
+
+	/* Reset flash again out of query mode */
+	out_be32((void *)CONFIG_SYS_FLASH0, 0x00f000f0);
+
+	/* When not identical, we have 2 different flash devices/banks */
+	if (val0 != val1)
+		return 0;
+
+	/*
+	 * Now we're sure that we're running on a LWMON5a board with
+	 * only 64MiB NOR flash in one bank:
+	 *
+	 * Set flash base address and bank count for CFI driver probing.
+	 */
+	cfi_flash_num_flash_banks = 1;
+	lwmon5_cfi_flash_bank_addr[0] = CONFIG_SYS_FLASH0;
+
+	return 0;
+}
+
+int misc_init_r(void)
+{
+	u32 pbcr;
+	int size_val = 0;
+	u32 reg;
+#ifndef CONFIG_LCD4_LWMON5
+	unsigned long usb2d0cr = 0;
+	unsigned long usb2phy0cr, usb2h0cr = 0;
+	unsigned long sdr0_pfc1, sdr0_srst;
+#endif
+
+	/*
+	 * FLASH stuff...
+	 */
+
+	/* Re-do sizing to get full correct info */
+
+	/* adjust flash start and offset */
+	gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
+	gd->bd->bi_flashoffset = 0;
+
+	mfebc(PB0CR, pbcr);
+	size_val = ffs(gd->bd->bi_flashsize) - 21;
+	pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17);
+	mtebc(PB0CR, pbcr);
+
+	/*
+	 * Re-check to get correct base address
+	 */
+	flash_get_size(gd->bd->bi_flashstart, 0);
+
+	/* Monitor protection ON by default */
+	flash_protect(FLAG_PROTECT_SET, -CONFIG_SYS_MONITOR_LEN, 0xffffffff,
+		      &flash_info[cfi_flash_num_flash_banks - 1]);
+
+	/* Env protection ON by default */
+	flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND,
+		      CONFIG_ENV_ADDR_REDUND + 2 * CONFIG_ENV_SECT_SIZE - 1,
+		      &flash_info[cfi_flash_num_flash_banks - 1]);
+
+#ifndef CONFIG_LCD4_LWMON5
+	/*
+	 * USB suff...
+	 */
+
+	/* Reset USB */
+	/* Reset of USB2PHY0 must be active at least 10 us  */
+	mtsdr(SDR0_SRST0, SDR0_SRST0_USB2H | SDR0_SRST0_USB2D);
+	udelay(2000);
+
+	mtsdr(SDR0_SRST1, SDR0_SRST1_USB20PHY | SDR0_SRST1_USB2HUTMI |
+	      SDR0_SRST1_USB2HPHY | SDR0_SRST1_OPBA2 |
+	      SDR0_SRST1_PLB42OPB1 | SDR0_SRST1_OPB2PLB40);
+	udelay(2000);
+
+	/* Errata CHIP_6 */
+
+	/* 1. Set internal PHY configuration */
+	/* SDR Setting */
+	mfsdr(SDR0_PFC1, sdr0_pfc1);
+	mfsdr(SDR0_USB0, usb2d0cr);
+	mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
+	mfsdr(SDR0_USB2H0CR, usb2h0cr);
+
+	usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_XOCLK_MASK;
+	usb2phy0cr = usb2phy0cr |  SDR0_USB2PHY0CR_XOCLK_EXTERNAL;	/*0*/
+	usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_WDINT_MASK;
+	usb2phy0cr = usb2phy0cr |  SDR0_USB2PHY0CR_WDINT_16BIT_30MHZ;	/*1*/
+	usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_DVBUS_MASK;
+	usb2phy0cr = usb2phy0cr |  SDR0_USB2PHY0CR_DVBUS_PUREN;		/*1*/
+	usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_DWNSTR_MASK;
+	usb2phy0cr = usb2phy0cr |  SDR0_USB2PHY0CR_DWNSTR_HOST;		/*1*/
+	usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_UTMICN_MASK;
+	usb2phy0cr = usb2phy0cr |  SDR0_USB2PHY0CR_UTMICN_HOST;		/*1*/
+
+	/*
+	 * An 8-bit/60MHz interface is the only possible alternative
+	 * when connecting the Device to the PHY
+	 */
+	usb2h0cr   = usb2h0cr & ~SDR0_USB2H0CR_WDINT_MASK;
+	usb2h0cr   = usb2h0cr |  SDR0_USB2H0CR_WDINT_16BIT_30MHZ;	/*1*/
+
+	mtsdr(SDR0_PFC1, sdr0_pfc1);
+	mtsdr(SDR0_USB0, usb2d0cr);
+	mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
+	mtsdr(SDR0_USB2H0CR, usb2h0cr);
+
+	/* 2. De-assert internal PHY reset */
+	mfsdr(SDR0_SRST1, sdr0_srst);
+	sdr0_srst = sdr0_srst & ~SDR0_SRST1_USB20PHY;
+	mtsdr(SDR0_SRST1, sdr0_srst);
+
+	/* 3. Wait for more than 1 ms */
+	udelay(2000);
+
+	/* 4. De-assert USB 2.0 Host main reset */
+	mfsdr(SDR0_SRST0, sdr0_srst);
+	sdr0_srst = sdr0_srst &~ SDR0_SRST0_USB2H;
+	mtsdr(SDR0_SRST0, sdr0_srst);
+	udelay(1000);
+
+	/* 5. De-assert reset of OPB2 cores */
+	mfsdr(SDR0_SRST1, sdr0_srst);
+	sdr0_srst = sdr0_srst &~ SDR0_SRST1_PLB42OPB1;
+	sdr0_srst = sdr0_srst &~ SDR0_SRST1_OPB2PLB40;
+	sdr0_srst = sdr0_srst &~ SDR0_SRST1_OPBA2;
+	mtsdr(SDR0_SRST1, sdr0_srst);
+	udelay(1000);
+
+	/* 6. Set EHCI Configure FLAG */
+
+	/* 7. Reassert internal PHY reset: */
+	mtsdr(SDR0_SRST1, SDR0_SRST1_USB20PHY);
+	udelay(1000);
+#endif
+
+	/*
+	 * Clear resets
+	 */
+	mtsdr(SDR0_SRST1, 0x00000000);
+	mtsdr(SDR0_SRST0, 0x00000000);
+
+#ifndef CONFIG_LCD4_LWMON5
+	printf("USB:   Host(int phy) Device(ext phy)\n");
+#endif
+
+	/*
+	 * Clear PLB4A0_ACR[WRP]
+	 * This fix will make the MAL burst disabling patch for the Linux
+	 * EMAC driver obsolete.
+	 */
+	reg = mfdcr(PLB4A0_ACR) & ~PLB4Ax_ACR_WRP_MASK;
+	mtdcr(PLB4A0_ACR, reg);
+
+#ifndef CONFIG_LCD4_LWMON5
+	/*
+	 * Init matrix keyboard
+	 */
+	misc_init_r_kbd();
+#endif
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
+
+	printf("Board: %s", __stringify(CONFIG_HOSTNAME));
+
+	if (i > 0) {
+		puts(", serial# ");
+		puts(buf);
+	}
+	putc('\n');
+
+	return (0);
+}
+
+void hw_watchdog_reset(void)
+{
+	int val;
+#if defined(CONFIG_WD_MAX_RATE)
+	unsigned long long ct = get_ticks();
+
+	/*
+	 * Don't allow watch-dog triggering more frequently than
+	 * the predefined value CONFIG_WD_MAX_RATE [ticks].
+	 */
+	if (ct >= gd->arch.wdt_last) {
+		if ((ct - gd->arch.wdt_last) < CONFIG_WD_MAX_RATE)
+			return;
+	} else {
+		/* Time base counter had been reset */
+		if (((unsigned long long)(-1) - gd->arch.wdt_last + ct) <
+		    CONFIG_WD_MAX_RATE)
+			return;
+	}
+	gd->arch.wdt_last = get_ticks();
+#endif
+
+	/*
+	 * Toggle watchdog output
+	 */
+	val = gpio_read_out_bit(CONFIG_SYS_GPIO_WATCHDOG) == 0 ? 1 : 0;
+	gpio_write_bit(CONFIG_SYS_GPIO_WATCHDOG, val);
+}
+
+int do_eeprom_wp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	if (argc < 2)
+		return cmd_usage(cmdtp);
+
+	if ((strcmp(argv[1], "on") == 0))
+		gpio_write_bit(CONFIG_SYS_GPIO_EEPROM_EXT_WP, 1);
+	else if ((strcmp(argv[1], "off") == 0))
+		gpio_write_bit(CONFIG_SYS_GPIO_EEPROM_EXT_WP, 0);
+	else
+		return cmd_usage(cmdtp);
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	eepromwp,	2,	0,	do_eeprom_wp,
+	"eeprom write protect off/on",
+	"<on|off> - enable (on) or disable (off) I2C EEPROM write protect"
+);
+
+#if defined(CONFIG_VIDEO)
+#include <video_fb.h>
+#include <mb862xx.h>
+
+extern GraphicDevice mb862xx;
+
+static const gdc_regs init_regs [] = {
+	{ 0x0100, 0x00000f00 },
+	{ 0x0020, 0x801401df },
+	{ 0x0024, 0x00000000 },
+	{ 0x0028, 0x00000000 },
+	{ 0x002c, 0x00000000 },
+	{ 0x0110, 0x00000000 },
+	{ 0x0114, 0x00000000 },
+	{ 0x0118, 0x01df0280 },
+	{ 0x0004, 0x031f0000 },
+	{ 0x0008, 0x027f027f },
+	{ 0x000c, 0x015f028f },
+	{ 0x0010, 0x020c0000 },
+	{ 0x0014, 0x01df01ea },
+	{ 0x0018, 0x00000000 },
+	{ 0x001c, 0x01e00280 },
+	{ 0x0100, 0x80010f00 },
+	{ 0x0, 0x0 }
+};
+
+const gdc_regs *board_get_regs(void)
+{
+	return init_regs;
+}
+
+/* Returns Lime base address */
+unsigned int board_video_init(void)
+{
+	/*
+	 * Reset Lime controller
+	 */
+	gpio_write_bit(CONFIG_SYS_GPIO_LIME_S, 1);
+	udelay(500);
+	gpio_write_bit(CONFIG_SYS_GPIO_LIME_RST, 1);
+
+	mb862xx.winSizeX = 640;
+	mb862xx.winSizeY = 480;
+	mb862xx.gdfBytesPP = 2;
+	mb862xx.gdfIndex = GDF_15BIT_555RGB;
+
+	return CONFIG_SYS_LIME_BASE_0;
+}
+
+#define DEFAULT_BRIGHTNESS	0x64
+
+static void board_backlight_brightness(int brightness)
+{
+	if (brightness > 0) {
+		/* pwm duty, lamp on */
+		out_be32((void *)(CONFIG_SYS_FPGA_BASE_0 + 0x00000024), brightness);
+		out_be32((void *)(CONFIG_SYS_FPGA_BASE_0 + 0x00000020), 0x701);
+	} else {
+		/* lamp off */
+		out_be32((void *)(CONFIG_SYS_FPGA_BASE_0 + 0x00000024), 0x00);
+		out_be32((void *)(CONFIG_SYS_FPGA_BASE_0 + 0x00000020), 0x00);
+	}
+}
+
+void board_backlight_switch(int flag)
+{
+	char * param;
+	int rc;
+
+	if (flag) {
+		param = getenv("brightness");
+		rc = param ? simple_strtol(param, NULL, 10) : -1;
+		if (rc < 0)
+			rc = DEFAULT_BRIGHTNESS;
+	} else {
+		rc = 0;
+	}
+	board_backlight_brightness(rc);
+}
+
+#if defined(CONFIG_CONSOLE_EXTRA_INFO)
+/*
+ * Return text to be printed besides the logo.
+ */
+void video_get_info_str(int line_number, char *info)
+{
+	if (line_number == 1)
+		strcpy(info, " Board: Lwmon5 (Liebherr Elektronik GmbH)");
+	else
+		info [0] = '\0';
+}
+#endif /* CONFIG_CONSOLE_EXTRA_INFO */
+#endif /* CONFIG_VIDEO */
+
+void board_reset(void)
+{
+	gpio_write_bit(CONFIG_SYS_GPIO_BOARD_RESET, 1);
+}
+
+#ifdef CONFIG_SPL_OS_BOOT
+/*
+ * lwmon5 specific implementation of spl_start_uboot()
+ *
+ * RETURN
+ * 0 if booting into OS is selected (default)
+ * 1 if booting into U-Boot is selected
+ */
+int spl_start_uboot(void)
+{
+	char s[8];
+
+	env_init();
+	getenv_f("boot_os", s, sizeof(s));
+	if ((s != NULL) && (strcmp(s, "yes") == 0))
+		return 0;
+
+	return 1;
+}
+
+/*
+ * This function is called from the SPL U-Boot version for
+ * early init stuff, that needs to be done for OS (e.g. Linux)
+ * booting. Doing it later in the real U-Boot would not work
+ * in case that the SPL U-Boot boots Linux directly.
+ */
+void spl_board_init(void)
+{
+	const gdc_regs *regs = board_get_regs();
+
+	/*
+	 * Setup PFC registers, mainly for ethernet support
+	 * later on in Linux
+	 */
+	board_early_init_f();
+
+	/* enable the LSB transmitter */
+	gpio_write_bit(CONFIG_SYS_GPIO_LSB_ENABLE, 1);
+
+	/*
+	 * Clear resets
+	 */
+	mtsdr(SDR0_SRST1, 0x00000000);
+	mtsdr(SDR0_SRST0, 0x00000000);
+
+	/*
+	 * Reset Lime controller
+	 */
+	gpio_write_bit(CONFIG_SYS_GPIO_LIME_S, 1);
+	udelay(500);
+	gpio_write_bit(CONFIG_SYS_GPIO_LIME_RST, 1);
+
+	out_be32((void *)CONFIG_SYS_LIME_SDRAM_CLOCK, CONFIG_SYS_MB862xx_CCF);
+	udelay(300);
+	out_be32((void *)CONFIG_SYS_LIME_MMR, CONFIG_SYS_MB862xx_MMR);
+
+	while (regs->index) {
+		out_be32((void *)(CONFIG_SYS_LIME_BASE_0 + GC_DISP_BASE) +
+			 regs->index, regs->value);
+		regs++;
+	}
+
+	board_backlight_brightness(DEFAULT_BRIGHTNESS);
+}
+#endif