arm: davinci: remove leftover code for dm* SoCs

The support for DaVinci DM* SoCs has been dropped a while ago. There's
still a lot of leftover code in mach-davinci though. Entirely remove
certain files and modify the common code to no longer reference
unsupported chips.

Note: all DaVinci platforms supported in u-boot now define SOC_DA8XX
but not all define SOC_DA850 (e.g. omapl138). We can safely remove
all ifdefs for the former, but let's leave the ones for the latter.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>

1 files changed, 0 insertions, 459 deletions

diff --git a/arch/arm/mach-davinci/dm365_lowlevel.c b/arch/arm/mach-davinci/dm365_lowlevel.c
deleted file mode 100644
index ad83917402..0000000000
--- a/arch/arm/mach-davinci/dm365_lowlevel.c
+++ /dev/null
@@ -1,459 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * SoC-specific lowlevel code for tms320dm365 and similar chips
- * Actually used for booting from NAND with nand_spl.
- *
- * Copyright (C) 2011
- * Heiko Schocher, DENX Software Engineering, hs@denx.de.
- */
-#include <common.h>
-#include <nand.h>
-#include <ns16550.h>
-#include <post.h>
-#include <asm/ti-common/davinci_nand.h>
-#include <asm/arch/dm365_lowlevel.h>
-#include <asm/arch/hardware.h>
-
-void dm365_waitloop(unsigned long loopcnt)
-{
-	unsigned long	i;
-
-	for (i = 0; i < loopcnt; i++)
-		asm("   NOP");
-}
-
-int dm365_pll1_init(unsigned long pllmult, unsigned long prediv)
-{
-	unsigned int clksrc = 0x0;
-
-	/* Power up the PLL */
-	clrbits_le32(&dv_pll0_regs->pllctl, PLLCTL_PLLPWRDN);
-
-	clrbits_le32(&dv_pll0_regs->pllctl, PLLCTL_RES_9);
-	setbits_le32(&dv_pll0_regs->pllctl,
-		clksrc << PLLCTL_CLOCK_MODE_SHIFT);
-
-	/*
-	 * Set PLLENSRC '0', PLL Enable(PLLEN) selection is controlled
-	 * through MMR
-	 */
-	clrbits_le32(&dv_pll0_regs->pllctl, PLLCTL_PLLENSRC);
-
-	/* Set PLLEN=0 => PLL BYPASS MODE */
-	clrbits_le32(&dv_pll0_regs->pllctl, PLLCTL_PLLEN);
-
-	dm365_waitloop(150);
-
-	 /* PLLRST=1(reset assert) */
-	setbits_le32(&dv_pll0_regs->pllctl, PLLCTL_PLLRST);
-
-	dm365_waitloop(300);
-
-	/*Bring PLL out of Reset*/
-	clrbits_le32(&dv_pll0_regs->pllctl, PLLCTL_PLLRST);
-
-	/* Program the Multiper and Pre-Divider for PLL1 */
-	writel(pllmult, &dv_pll0_regs->pllm);
-	writel(prediv, &dv_pll0_regs->prediv);
-
-	/* Assert TENABLE = 1, TENABLEDIV = 1, TINITZ = 1 */
-	writel(PLLSECCTL_STOPMODE | PLLSECCTL_TENABLEDIV | PLLSECCTL_TENABLE |
-		PLLSECCTL_TINITZ, &dv_pll0_regs->secctl);
-	/* Assert TENABLE = 1, TENABLEDIV = 1, TINITZ = 0 */
-	writel(PLLSECCTL_STOPMODE | PLLSECCTL_TENABLEDIV | PLLSECCTL_TENABLE,
-		&dv_pll0_regs->secctl);
-	/* Assert TENABLE = 0, TENABLEDIV = 0, TINITZ = 0 */
-	writel(PLLSECCTL_STOPMODE, &dv_pll0_regs->secctl);
-	/* Assert TENABLE = 0, TENABLEDIV = 0, TINITZ = 1 */
-	writel(PLLSECCTL_STOPMODE | PLLSECCTL_TINITZ, &dv_pll0_regs->secctl);
-
-	/* Program the PostDiv for PLL1 */
-	writel(PLL_POSTDEN, &dv_pll0_regs->postdiv);
-
-	/* Post divider setting for PLL1 */
-	writel(CONFIG_SYS_DM36x_PLL1_PLLDIV1, &dv_pll0_regs->plldiv1);
-	writel(CONFIG_SYS_DM36x_PLL1_PLLDIV2, &dv_pll0_regs->plldiv2);
-	writel(CONFIG_SYS_DM36x_PLL1_PLLDIV3, &dv_pll0_regs->plldiv3);
-	writel(CONFIG_SYS_DM36x_PLL1_PLLDIV4, &dv_pll0_regs->plldiv4);
-	writel(CONFIG_SYS_DM36x_PLL1_PLLDIV5, &dv_pll0_regs->plldiv5);
-	writel(CONFIG_SYS_DM36x_PLL1_PLLDIV6, &dv_pll0_regs->plldiv6);
-	writel(CONFIG_SYS_DM36x_PLL1_PLLDIV7, &dv_pll0_regs->plldiv7);
-	writel(CONFIG_SYS_DM36x_PLL1_PLLDIV8, &dv_pll0_regs->plldiv8);
-	writel(CONFIG_SYS_DM36x_PLL1_PLLDIV9, &dv_pll0_regs->plldiv9);
-
-	dm365_waitloop(300);
-
-	/* Set the GOSET bit */
-	writel(PLLCMD_GOSET, &dv_pll0_regs->pllcmd); /* Go */
-
-	dm365_waitloop(300);
-
-	/* Wait for PLL to LOCK */
-	while (!((readl(&dv_sys_module_regs->pll0_config) & PLL0_LOCK)
-		== PLL0_LOCK))
-		;
-
-	/* Enable the PLL Bit of PLLCTL*/
-	setbits_le32(&dv_pll0_regs->pllctl, PLLCTL_PLLEN);
-
-	return 0;
-}
-
-int dm365_pll2_init(unsigned long pllm, unsigned long prediv)
-{
-	unsigned int clksrc = 0x0;
-
-	/* Power up the PLL*/
-	clrbits_le32(&dv_pll1_regs->pllctl, PLLCTL_PLLPWRDN);
-
-	/*
-	 * Select the Clock Mode as Onchip Oscilator or External Clock on
-	 * MXI pin
-	 * VDB has input on MXI pin
-	 */
-	clrbits_le32(&dv_pll1_regs->pllctl, PLLCTL_RES_9);
-	setbits_le32(&dv_pll1_regs->pllctl,
-		clksrc << PLLCTL_CLOCK_MODE_SHIFT);
-
-	/*
-	 * Set PLLENSRC '0', PLL Enable(PLLEN) selection is controlled
-	 * through MMR
-	 */
-	clrbits_le32(&dv_pll1_regs->pllctl, PLLCTL_PLLENSRC);
-
-	/* Set PLLEN=0 => PLL BYPASS MODE */
-	clrbits_le32(&dv_pll1_regs->pllctl, PLLCTL_PLLEN);
-
-	dm365_waitloop(50);
-
-	 /* PLLRST=1(reset assert) */
-	setbits_le32(&dv_pll1_regs->pllctl, PLLCTL_PLLRST);
-
-	dm365_waitloop(300);
-
-	/* Bring PLL out of Reset */
-	clrbits_le32(&dv_pll1_regs->pllctl, PLLCTL_PLLRST);
-
-	/* Program the Multiper and Pre-Divider for PLL2 */
-	writel(pllm, &dv_pll1_regs->pllm);
-	writel(prediv, &dv_pll1_regs->prediv);
-
-	writel(PLL_POSTDEN, &dv_pll1_regs->postdiv);
-
-	/* Assert TENABLE = 1, TENABLEDIV = 1, TINITZ = 1 */
-	writel(PLLSECCTL_STOPMODE | PLLSECCTL_TENABLEDIV | PLLSECCTL_TENABLE |
-		PLLSECCTL_TINITZ, &dv_pll1_regs->secctl);
-	/* Assert TENABLE = 1, TENABLEDIV = 1, TINITZ = 0 */
-	writel(PLLSECCTL_STOPMODE | PLLSECCTL_TENABLEDIV | PLLSECCTL_TENABLE,
-		&dv_pll1_regs->secctl);
-	/* Assert TENABLE = 0, TENABLEDIV = 0, TINITZ = 0 */
-	writel(PLLSECCTL_STOPMODE, &dv_pll1_regs->secctl);
-	/* Assert TENABLE = 0, TENABLEDIV = 0, TINITZ = 1 */
-	writel(PLLSECCTL_STOPMODE | PLLSECCTL_TINITZ, &dv_pll1_regs->secctl);
-
-	/* Post divider setting for PLL2 */
-	writel(CONFIG_SYS_DM36x_PLL2_PLLDIV1, &dv_pll1_regs->plldiv1);
-	writel(CONFIG_SYS_DM36x_PLL2_PLLDIV2, &dv_pll1_regs->plldiv2);
-	writel(CONFIG_SYS_DM36x_PLL2_PLLDIV3, &dv_pll1_regs->plldiv3);
-	writel(CONFIG_SYS_DM36x_PLL2_PLLDIV4, &dv_pll1_regs->plldiv4);
-	writel(CONFIG_SYS_DM36x_PLL2_PLLDIV5, &dv_pll1_regs->plldiv5);
-
-	/* GoCmd for PostDivider to take effect */
-	writel(PLLCMD_GOSET, &dv_pll1_regs->pllcmd);
-
-	dm365_waitloop(150);
-
-	/* Wait for PLL to LOCK */
-	while (!((readl(&dv_sys_module_regs->pll1_config) & PLL1_LOCK)
-		== PLL1_LOCK))
-		;
-
-	dm365_waitloop(4100);
-
-	/* Enable the PLL2 */
-	setbits_le32(&dv_pll1_regs->pllctl, PLLCTL_PLLEN);
-
-	/* do this after PLL's have been set up */
-	writel(CONFIG_SYS_DM36x_PERI_CLK_CTRL,
-		&dv_sys_module_regs->peri_clkctl);
-
-	return 0;
-}
-
-int dm365_ddr_setup(void)
-{
-	lpsc_on(DAVINCI_LPSC_DDR_EMIF);
-	clrbits_le32(&dv_sys_module_regs->vtpiocr,
-		VPTIO_IOPWRDN | VPTIO_CLRZ | VPTIO_LOCK | VPTIO_PWRDN);
-
-	/* Set bit CLRZ (bit 13) */
-	setbits_le32(&dv_sys_module_regs->vtpiocr, VPTIO_CLRZ);
-
-	/* Check VTP READY Status */
-	while (!(readl(&dv_sys_module_regs->vtpiocr) & VPTIO_RDY))
-		;
-
-	/* Set bit VTP_IOPWRDWN bit 14 for DDR input buffers) */
-	setbits_le32(&dv_sys_module_regs->vtpiocr, VPTIO_IOPWRDN);
-
-	/* Set bit LOCK(bit7) */
-	setbits_le32(&dv_sys_module_regs->vtpiocr, VPTIO_LOCK);
-
-	/*
-	 * Powerdown VTP as it is locked (bit 6)
-	 * Set bit VTP_IOPWRDWN bit 14 for DDR input buffers)
-	 */
-	setbits_le32(&dv_sys_module_regs->vtpiocr,
-		VPTIO_IOPWRDN | VPTIO_PWRDN);
-
-	/* Wait for calibration to complete */
-	dm365_waitloop(150);
-
-	/* Set the DDR2 to synreset, then enable it again */
-	lpsc_syncreset(DAVINCI_LPSC_DDR_EMIF);
-	lpsc_on(DAVINCI_LPSC_DDR_EMIF);
-
-	writel(CONFIG_SYS_DM36x_DDR2_DDRPHYCR, &dv_ddr2_regs_ctrl->ddrphycr);
-
-	/* Program SDRAM Bank Config Register */
-	writel((CONFIG_SYS_DM36x_DDR2_SDBCR | DV_DDR_BOOTUNLOCK),
-		&dv_ddr2_regs_ctrl->sdbcr);
-	writel((CONFIG_SYS_DM36x_DDR2_SDBCR | DV_DDR_TIMUNLOCK),
-		&dv_ddr2_regs_ctrl->sdbcr);
-
-	/* Program SDRAM Timing Control Register1 */
-	writel(CONFIG_SYS_DM36x_DDR2_SDTIMR, &dv_ddr2_regs_ctrl->sdtimr);
-	/* Program SDRAM Timing Control Register2 */
-	writel(CONFIG_SYS_DM36x_DDR2_SDTIMR2, &dv_ddr2_regs_ctrl->sdtimr2);
-
-	writel(CONFIG_SYS_DM36x_DDR2_PBBPR, &dv_ddr2_regs_ctrl->pbbpr);
-
-	writel(CONFIG_SYS_DM36x_DDR2_SDBCR, &dv_ddr2_regs_ctrl->sdbcr);
-
-	/* Program SDRAM Refresh Control Register */
-	writel(CONFIG_SYS_DM36x_DDR2_SDRCR, &dv_ddr2_regs_ctrl->sdrcr);
-
-	lpsc_syncreset(DAVINCI_LPSC_DDR_EMIF);
-	lpsc_on(DAVINCI_LPSC_DDR_EMIF);
-
-	return 0;
-}
-
-static void dm365_vpss_sync_reset(void)
-{
-	unsigned int PdNum = 0;
-
-	/* VPSS_CLKMD 1:1 */
-	setbits_le32(&dv_sys_module_regs->vpss_clkctl,
-		VPSS_CLK_CTL_VPSS_CLKMD);
-
-	/* LPSC SyncReset DDR Clock Enable */
-	writel(((readl(&dv_psc_regs->mdctl[DAVINCI_LPSC_VPSSMASTER]) &
-		~PSC_MD_STATE_MSK) | PSC_SYNCRESET),
-		&dv_psc_regs->mdctl[DAVINCI_LPSC_VPSSMASTER]);
-
-	writel((1 << PdNum), &dv_psc_regs->ptcmd);
-
-	while (!(((readl(&dv_psc_regs->ptstat) >> PdNum) & PSC_GOSTAT) == 0))
-		;
-	while (!((readl(&dv_psc_regs->mdstat[DAVINCI_LPSC_VPSSMASTER]) &
-		PSC_MD_STATE_MSK) == PSC_SYNCRESET))
-		;
-}
-
-static void dm365_por_reset(void)
-{
-	struct davinci_timer *wdog =
-		(struct davinci_timer *)DAVINCI_WDOG_BASE;
-
-	if (readl(&dv_pll0_regs->rstype) &
-		(PLL_RSTYPE_POR | PLL_RSTYPE_XWRST)) {
-		dm365_vpss_sync_reset();
-
-		writel(DV_TMPBUF_VAL, TMPBUF);
-		setbits_le32(TMPSTATUS, FLAG_PORRST);
-		writel(DV_WDT_ENABLE_SYS_RESET, &wdog->na1);
-		writel(DV_WDT_TRIGGER_SYS_RESET, &wdog->na2);
-
-		while (1);
-	}
-}
-
-static void dm365_wdt_reset(void)
-{
-	struct davinci_timer *wdog =
-		(struct davinci_timer *)DAVINCI_WDOG_BASE;
-
-	if (readl(TMPBUF) != DV_TMPBUF_VAL) {
-		writel(DV_TMPBUF_VAL, TMPBUF);
-		setbits_le32(TMPSTATUS, FLAG_PORRST);
-		setbits_le32(TMPSTATUS, FLAG_FLGOFF);
-
-		dm365_waitloop(100);
-
-		dm365_vpss_sync_reset();
-
-		writel(DV_WDT_ENABLE_SYS_RESET, &wdog->na1);
-		writel(DV_WDT_TRIGGER_SYS_RESET, &wdog->na2);
-
-		while (1);
-	}
-}
-
-static void dm365_wdt_flag_on(void)
-{
-	/* VPSS_CLKMD 1:2 */
-	clrbits_le32(&dv_sys_module_regs->vpss_clkctl,
-		VPSS_CLK_CTL_VPSS_CLKMD);
-	writel(0, TMPBUF);
-	setbits_le32(TMPSTATUS, FLAG_FLGON);
-}
-
-void dm365_psc_init(void)
-{
-	unsigned char i = 0;
-	unsigned char lpsc_start;
-	unsigned char lpsc_end, lpscgroup, lpscmin, lpscmax;
-	unsigned int  PdNum = 0;
-
-	lpscmin = 0;
-	lpscmax = 2;
-
-	for (lpscgroup = lpscmin; lpscgroup <= lpscmax; lpscgroup++) {
-		if (lpscgroup == 0) {
-			/* Enabling LPSC 3 to 28 SCR first */
-			lpsc_start = DAVINCI_LPSC_VPSSMSTR;
-			lpsc_end   = DAVINCI_LPSC_TIMER1;
-		} else if (lpscgroup == 1) { /* Skip locked LPSCs [29-37] */
-			lpsc_start = DAVINCI_LPSC_CFG5;
-			lpsc_end   = DAVINCI_LPSC_VPSSMASTER;
-		} else {
-			lpsc_start = DAVINCI_LPSC_MJCP;
-			lpsc_end   = DAVINCI_LPSC_HDVICP;
-		}
-
-		/* NEXT=0x3, Enable LPSC's */
-		for (i = lpsc_start; i <= lpsc_end; i++)
-			setbits_le32(&dv_psc_regs->mdctl[i], PSC_ENABLE);
-
-		/*
-		 * Program goctl to start transition sequence for LPSCs
-		 * CSL_PSC_0_REGS->PTCMD = (1<<PdNum); Kick off Power
-		 * Domain 0 Modules
-		 */
-		writel((1 << PdNum), &dv_psc_regs->ptcmd);
-
-		/*
-		 * Wait for GOSTAT = NO TRANSITION from PSC for Powerdomain 0
-		 */
-		while (!(((readl(&dv_psc_regs->ptstat) >> PdNum) & PSC_GOSTAT)
-			== 0))
-			;
-
-		/* Wait for MODSTAT = ENABLE from LPSC's */
-		for (i = lpsc_start; i <= lpsc_end; i++)
-			while (!((readl(&dv_psc_regs->mdstat[i]) &
-				PSC_MD_STATE_MSK) == PSC_ENABLE))
-				;
-	}
-}
-
-static void dm365_emif_init(void)
-{
-	writel(CONFIG_SYS_DM36x_AWCCR, &davinci_emif_regs->awccr);
-	writel(CONFIG_SYS_DM36x_AB1CR, &davinci_emif_regs->ab1cr);
-
-	setbits_le32(&davinci_emif_regs->nandfcr, DAVINCI_NANDFCR_CS2NAND);
-
-	writel(CONFIG_SYS_DM36x_AB2CR, &davinci_emif_regs->ab2cr);
-
-	return;
-}
-
-void dm365_pinmux_ctl(unsigned long offset, unsigned long mask,
-	unsigned long value)
-{
-	clrbits_le32(&dv_sys_module_regs->pinmux[offset], mask);
-	setbits_le32(&dv_sys_module_regs->pinmux[offset], (mask & value));
-}
-
-__attribute__((weak))
-void board_gpio_init(void)
-{
-	return;
-}
-
-#if defined(CONFIG_POST)
-int post_log(char *format, ...)
-{
-	return 0;
-}
-#endif
-
-void dm36x_lowlevel_init(ulong bootflag)
-{
-	struct davinci_uart_ctrl_regs *davinci_uart_ctrl_regs =
-		(struct davinci_uart_ctrl_regs *)(CONFIG_SYS_NS16550_COM1 +
-		DAVINCI_UART_CTRL_BASE);
-
-	/* Mask all interrupts */
-	writel(DV_AINTC_INTCTL_IDMODE, &dv_aintc_regs->intctl);
-	writel(0x0, &dv_aintc_regs->eabase);
-	writel(0x0, &dv_aintc_regs->eint0);
-	writel(0x0, &dv_aintc_regs->eint1);
-
-	/* Clear all interrupts */
-	writel(0xffffffff, &dv_aintc_regs->fiq0);
-	writel(0xffffffff, &dv_aintc_regs->fiq1);
-	writel(0xffffffff, &dv_aintc_regs->irq0);
-	writel(0xffffffff, &dv_aintc_regs->irq1);
-
-	dm365_por_reset();
-	dm365_wdt_reset();
-
-	/* System PSC setup - enable all */
-	dm365_psc_init();
-
-	/* Setup Pinmux */
-	dm365_pinmux_ctl(0, 0xFFFFFFFF, CONFIG_SYS_DM36x_PINMUX0);
-	dm365_pinmux_ctl(1, 0xFFFFFFFF, CONFIG_SYS_DM36x_PINMUX1);
-	dm365_pinmux_ctl(2, 0xFFFFFFFF, CONFIG_SYS_DM36x_PINMUX2);
-	dm365_pinmux_ctl(3, 0xFFFFFFFF, CONFIG_SYS_DM36x_PINMUX3);
-	dm365_pinmux_ctl(4, 0xFFFFFFFF, CONFIG_SYS_DM36x_PINMUX4);
-
-	/* PLL setup */
-	dm365_pll1_init(CONFIG_SYS_DM36x_PLL1_PLLM,
-		CONFIG_SYS_DM36x_PLL1_PREDIV);
-	dm365_pll2_init(CONFIG_SYS_DM36x_PLL2_PLLM,
-		CONFIG_SYS_DM36x_PLL2_PREDIV);
-
-	/* GPIO setup */
-	board_gpio_init();
-
-	NS16550_init((NS16550_t)(CONFIG_SYS_NS16550_COM1),
-			CONFIG_SYS_NS16550_CLK / 16 / CONFIG_BAUDRATE);
-
-	/*
-	 * Fix Power and Emulation Management Register
-	 * see sprufh2.pdf page 38 Table 22
-	 */
-	writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST |
-		DAVINCI_UART_PWREMU_MGMT_UTRST),
-	       &davinci_uart_ctrl_regs->pwremu_mgmt);
-
-	puts("ddr init\n");
-	dm365_ddr_setup();
-
-	puts("emif init\n");
-	dm365_emif_init();
-
-	dm365_wdt_flag_on();
-
-#if defined(CONFIG_POST)
-	/*
-	 * Do memory tests, calls arch_memory_failure_handle()
-	 * if error detected.
-	 */
-	memory_post_test(0);
-#endif
-}