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u-boot/board/davinci/da8xxevm/omapl138_lcdk.c
Tom Rini 9774462e34 arm: Disable ATAGs support 
With the exceptions of ds109, ds414, icnova-a20-swac, nokia_rx51 and
stemmy, disable ATAG support.  A large number of platforms had enabled
support but never supported a kernel so old as to require it.  Further,
some platforms are old enough to support both, but are well supported by
devicetree booting, and have been for a number of years.  This is
because some of the ATAGs related functions have been re-used to provide
the same kind of information, but for devicetree or just generally to
inform the user.  When needed still, rename these functions to
get_board_revision() instead, to avoid conflicts.  In other cases, these
functions were simply unused, so drop them.

Cc: Andre Przywara <andre.przywara@arm.com>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Phil Sutter <phil@nwl.cc>
Cc: Stefan Bosch <stefan_b@posteo.net>
Signed-off-by: Tom Rini <trini@konsulko.com>
2021-09-07 16:22:30 -04:00

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
*
* Based on da850evm.c. Original Copyrights follow:
*
* Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com>
* Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
*/
#include <common.h>
#include <env.h>
#include <i2c.h>
#include <init.h>
#include <net.h>
#include <asm/arch/hardware.h>
#include <asm/global_data.h>
#include <asm/ti-common/davinci_nand.h>
#include <asm/io.h>
#include <ns16550.h>
#include <dm/platdata.h>
#include <linux/errno.h>
#include <asm/mach-types.h>
#include <asm/arch/davinci_misc.h>
#ifdef CONFIG_MMC_DAVINCI
#include <mmc.h>
#include <asm/arch/sdmmc_defs.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
#define pinmux(x) (&davinci_syscfg_regs->pinmux[x])
#ifdef CONFIG_MMC_DAVINCI
/* MMC0 pin muxer settings */
const struct pinmux_config mmc0_pins[] = {
/* GP0[11] is required for SD to work on Rev 3 EVMs */
{ pinmux(0), 8, 4 }, /* GP0[11] */
{ pinmux(10), 2, 0 }, /* MMCSD0_CLK */
{ pinmux(10), 2, 1 }, /* MMCSD0_CMD */
{ pinmux(10), 2, 2 }, /* MMCSD0_DAT_0 */
{ pinmux(10), 2, 3 }, /* MMCSD0_DAT_1 */
{ pinmux(10), 2, 4 }, /* MMCSD0_DAT_2 */
{ pinmux(10), 2, 5 }, /* MMCSD0_DAT_3 */
/* LCDK supports only 4-bit mode, remaining pins are not configured */
};
#endif
/* UART pin muxer settings */
static const struct pinmux_config uart_pins[] = {
{ pinmux(0), 4, 6 },
{ pinmux(0), 4, 7 },
{ pinmux(4), 2, 4 },
{ pinmux(4), 2, 5 }
};
#ifdef CONFIG_DRIVER_TI_EMAC
static const struct pinmux_config emac_pins[] = {
{ pinmux(2), 8, 1 },
{ pinmux(2), 8, 2 },
{ pinmux(2), 8, 3 },
{ pinmux(2), 8, 4 },
{ pinmux(2), 8, 5 },
{ pinmux(2), 8, 6 },
{ pinmux(2), 8, 7 },
{ pinmux(3), 8, 0 },
{ pinmux(3), 8, 1 },
{ pinmux(3), 8, 2 },
{ pinmux(3), 8, 3 },
{ pinmux(3), 8, 4 },
{ pinmux(3), 8, 5 },
{ pinmux(3), 8, 6 },
{ pinmux(3), 8, 7 },
{ pinmux(4), 8, 0 },
{ pinmux(4), 8, 1 }
};
#endif /* CONFIG_DRIVER_TI_EMAC */
/* I2C pin muxer settings */
static const struct pinmux_config i2c_pins[] = {
{ pinmux(4), 2, 2 },
{ pinmux(4), 2, 3 }
};
#ifdef CONFIG_NAND_DAVINCI
const struct pinmux_config nand_pins[] = {
{ pinmux(7), 1, 1 },
{ pinmux(7), 1, 2 },
{ pinmux(7), 1, 4 },
{ pinmux(7), 1, 5 },
{ pinmux(8), 1, 0 },
{ pinmux(8), 1, 1 },
{ pinmux(8), 1, 2 },
{ pinmux(8), 1, 3 },
{ pinmux(8), 1, 4 },
{ pinmux(8), 1, 5 },
{ pinmux(8), 1, 6 },
{ pinmux(8), 1, 7 },
{ pinmux(9), 1, 0 },
{ pinmux(9), 1, 1 },
{ pinmux(9), 1, 2 },
{ pinmux(9), 1, 3 },
{ pinmux(9), 1, 4 },
{ pinmux(9), 1, 5 },
{ pinmux(9), 1, 6 },
{ pinmux(9), 1, 7 },
{ pinmux(12), 1, 5 },
{ pinmux(12), 1, 6 }
};
#endif
#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII
#define HAS_RMII 1
#else
#define HAS_RMII 0
#endif
const struct pinmux_resource pinmuxes[] = {
PINMUX_ITEM(uart_pins),
PINMUX_ITEM(i2c_pins),
#ifdef CONFIG_NAND_DAVINCI
PINMUX_ITEM(nand_pins),
#endif
};
const int pinmuxes_size = ARRAY_SIZE(pinmuxes);
const struct lpsc_resource lpsc[] = {
{ DAVINCI_LPSC_AEMIF }, /* NAND, NOR */
{ DAVINCI_LPSC_SPI1 }, /* Serial Flash */
{ DAVINCI_LPSC_EMAC }, /* image download */
{ DAVINCI_LPSC_UART2 }, /* console */
{ DAVINCI_LPSC_GPIO },
#ifdef CONFIG_MMC_DAVINCI
{ DAVINCI_LPSC_MMC_SD },
#endif
};
const int lpsc_size = ARRAY_SIZE(lpsc);
#ifndef CONFIG_DA850_EVM_MAX_CPU_CLK
#define CONFIG_DA850_EVM_MAX_CPU_CLK 456000000
#endif
int board_early_init_f(void)
{
/*
* Power on required peripherals
* ARM does not have access by default to PSC0 and PSC1
* assuming here that the DSP bootloader has set the IOPU
* such that PSC access is available to ARM
*/
if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc)))
return 1;
return 0;
}
int board_init(void)
{
irq_init();
/* arch number of the board */
gd->bd->bi_arch_number = MACH_TYPE_OMAPL138_LCDK;
/* address of boot parameters */
gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
/* setup the SUSPSRC for ARM to control emulation suspend */
writel(readl(&davinci_syscfg_regs->suspsrc) &
~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C |
DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
DAVINCI_SYSCFG_SUSPSRC_UART2),
&davinci_syscfg_regs->suspsrc);
/* configure pinmux settings */
if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes)))
return 1;
#ifdef CONFIG_NAND_DAVINCI
/*
* NAND CS setup - cycle counts based on da850evm NAND timings in the
* Linux kernel @ 25MHz EMIFA
*/
writel((DAVINCI_ABCR_WSETUP(15) |
DAVINCI_ABCR_WSTROBE(63) |
DAVINCI_ABCR_WHOLD(7) |
DAVINCI_ABCR_RSETUP(15) |
DAVINCI_ABCR_RSTROBE(63) |
DAVINCI_ABCR_RHOLD(7) |
DAVINCI_ABCR_TA(3) |
DAVINCI_ABCR_ASIZE_16BIT),
&davinci_emif_regs->ab2cr); /* CS3 */
#endif
#ifdef CONFIG_MMC_DAVINCI
if (davinci_configure_pin_mux(mmc0_pins, ARRAY_SIZE(mmc0_pins)) != 0)
return 1;
#endif
#ifdef CONFIG_DRIVER_TI_EMAC
if (davinci_configure_pin_mux(emac_pins, ARRAY_SIZE(emac_pins)) != 0)
return 1;
davinci_emac_mii_mode_sel(HAS_RMII);
#endif /* CONFIG_DRIVER_TI_EMAC */
/* enable the console UART */
writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST |
DAVINCI_UART_PWREMU_MGMT_UTRST),
&davinci_uart2_ctrl_regs->pwremu_mgmt);
return 0;
}
#define CFG_MAC_ADDR_SPI_BUS 0
#define CFG_MAC_ADDR_SPI_CS 0
#define CFG_MAC_ADDR_SPI_MAX_HZ CONFIG_SF_DEFAULT_SPEED
#define CFG_MAC_ADDR_SPI_MODE SPI_MODE_3
#define CFG_MAC_ADDR_OFFSET (flash->size - SZ_64K)
void dsp_lpsc_on(unsigned domain, unsigned int id)
{
dv_reg_p mdstat, mdctl, ptstat, ptcmd;
struct davinci_psc_regs *psc_regs;
psc_regs = davinci_psc0_regs;
mdstat = &psc_regs->psc0.mdstat[id];
mdctl = &psc_regs->psc0.mdctl[id];
ptstat = &psc_regs->ptstat;
ptcmd = &psc_regs->ptcmd;
while (*ptstat & (0x1 << domain))
;
if ((*mdstat & 0x1f) == 0x03)
return; /* Already on and enabled */
*mdctl |= 0x03;
*ptcmd = 0x1 << domain;
while (*ptstat & (0x1 << domain))
;
while ((*mdstat & 0x1f) != 0x03)
; /* Probably an overkill... */
}
static void dspwake(void)
{
unsigned *resetvect = (unsigned *)DAVINCI_L3CBARAM_BASE;
/* if the device is ARM only, return */
if ((REG(CHIP_REV_ID_REG) & 0x3f) == 0x10)
return;
if (!strcmp(env_get("dspwake"), "no"))
return;
*resetvect++ = 0x1E000; /* DSP Idle */
/* clear out the next 10 words as NOP */
memset(resetvect, 0, sizeof(unsigned) * 10);
/* setup the DSP reset vector */
REG(HOST1CFG) = DAVINCI_L3CBARAM_BASE;
dsp_lpsc_on(1, DAVINCI_LPSC_GEM);
REG(PSC0_MDCTL + (15 * 4)) |= 0x100;
}
#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII
/**
* rmii_hw_init
*
*/
int rmii_hw_init(void)
{
return 0;
}
#endif /* CONFIG_DRIVER_TI_EMAC_USE_RMII */
int misc_init_r(void)
{
#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII
/* Select RMII fucntion through the expander */
if (rmii_hw_init())
printf("RMII hardware init failed!!!\n");
#endif
dspwake();
return 0;
}
#if !CONFIG_IS_ENABLED(DM_MMC)
#ifdef CONFIG_MMC_DAVINCI
static struct davinci_mmc mmc_sd0 = {
.reg_base = (struct davinci_mmc_regs *)DAVINCI_MMC_SD0_BASE,
.host_caps = MMC_MODE_4BIT, /* DA850 supports only 4-bit SD/MMC */
.voltages = MMC_VDD_32_33 | MMC_VDD_33_34,
};
int board_mmc_init(struct bd_info *bis)
{
mmc_sd0.input_clk = clk_get(DAVINCI_MMCSD_CLKID);
/* Add slot-0 to mmc subsystem */
return davinci_mmc_init(bis, &mmc_sd0);
}
#endif
#endif
#ifdef CONFIG_SPL_BUILD
static const struct ns16550_plat serial_pdata = {
.base = DAVINCI_UART2_BASE,
.reg_shift = 2,
.clock = 228000000,
.fcr = UART_FCR_DEFVAL,
};
U_BOOT_DRVINFO(omapl138_uart) = {
.name = "ns16550_serial",
.plat = &serial_pdata,
};
static const struct davinci_mmc_plat mmc_plat = {
.reg_base = (struct davinci_mmc_regs *)DAVINCI_MMC_SD0_BASE,
.cfg = {
.f_min = 200000,
.f_max = 25000000,
.voltages = MMC_VDD_32_33 | MMC_VDD_33_34,
.host_caps = MMC_MODE_4BIT,
.b_max = DAVINCI_MAX_BLOCKS,
.name = "da830-mmc",
},
};
U_BOOT_DRVINFO(omapl138_mmc) = {
.name = "ti_da830_mmc",
.plat = &mmc_plat,
};
void spl_board_init(void)
{
davinci_configure_pin_mux(mmc0_pins, ARRAY_SIZE(mmc0_pins));
}
#endif
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