mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-26 21:13:48 +00:00
f55281665a
When the ti814x_evm config was removed most, but not all, of the
relevant support code was remove. Get rid of what was missed.
Fixes: 50b5326868 ("ti814x: Remove platform")
Signed-off-by: Tom Rini <trini@konsulko.com>
93 lines
2.4 KiB
C
93 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* emif4.c
|
|
*
|
|
* AM33XX emif4 configuration file
|
|
*
|
|
* Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/arch/cpu.h>
|
|
#include <asm/arch/ddr_defs.h>
|
|
#include <asm/arch/hardware.h>
|
|
#include <asm/arch/clock.h>
|
|
#include <asm/arch/sys_proto.h>
|
|
#include <asm/io.h>
|
|
#include <asm/emif.h>
|
|
|
|
static struct vtp_reg *vtpreg[2] = {
|
|
(struct vtp_reg *)VTP0_CTRL_ADDR,
|
|
(struct vtp_reg *)VTP1_CTRL_ADDR};
|
|
#ifdef CONFIG_AM33XX
|
|
static struct ddr_ctrl *ddrctrl = (struct ddr_ctrl *)DDR_CTRL_ADDR;
|
|
#endif
|
|
#ifdef CONFIG_AM43XX
|
|
static struct ddr_ctrl *ddrctrl = (struct ddr_ctrl *)DDR_CTRL_ADDR;
|
|
static struct cm_device_inst *cm_device =
|
|
(struct cm_device_inst *)CM_DEVICE_INST;
|
|
#endif
|
|
|
|
static void config_vtp(int nr)
|
|
{
|
|
writel(readl(&vtpreg[nr]->vtp0ctrlreg) | VTP_CTRL_ENABLE,
|
|
&vtpreg[nr]->vtp0ctrlreg);
|
|
writel(readl(&vtpreg[nr]->vtp0ctrlreg) & (~VTP_CTRL_START_EN),
|
|
&vtpreg[nr]->vtp0ctrlreg);
|
|
writel(readl(&vtpreg[nr]->vtp0ctrlreg) | VTP_CTRL_START_EN,
|
|
&vtpreg[nr]->vtp0ctrlreg);
|
|
|
|
/* Poll for READY */
|
|
while ((readl(&vtpreg[nr]->vtp0ctrlreg) & VTP_CTRL_READY) !=
|
|
VTP_CTRL_READY)
|
|
;
|
|
}
|
|
|
|
void __weak ddr_pll_config(unsigned int ddrpll_m)
|
|
{
|
|
}
|
|
|
|
void config_ddr(unsigned int pll, const struct ctrl_ioregs *ioregs,
|
|
const struct ddr_data *data, const struct cmd_control *ctrl,
|
|
const struct emif_regs *regs, int nr)
|
|
{
|
|
ddr_pll_config(pll);
|
|
config_vtp(nr);
|
|
config_cmd_ctrl(ctrl, nr);
|
|
|
|
config_ddr_data(data, nr);
|
|
#ifdef CONFIG_AM33XX
|
|
config_io_ctrl(ioregs);
|
|
|
|
/* Set CKE to be controlled by EMIF/DDR PHY */
|
|
writel(DDR_CKE_CTRL_NORMAL, &ddrctrl->ddrckectrl);
|
|
|
|
#endif
|
|
#ifdef CONFIG_AM43XX
|
|
writel(readl(&cm_device->cm_dll_ctrl) & ~0x1, &cm_device->cm_dll_ctrl);
|
|
while ((readl(&cm_device->cm_dll_ctrl) & CM_DLL_READYST) == 0)
|
|
;
|
|
|
|
config_io_ctrl(ioregs);
|
|
|
|
/* Set CKE to be controlled by EMIF/DDR PHY */
|
|
writel(DDR_CKE_CTRL_NORMAL, &ddrctrl->ddrckectrl);
|
|
|
|
if (emif_sdram_type(regs->sdram_config) == EMIF_SDRAM_TYPE_DDR3)
|
|
#ifndef CONFIG_SPL_RTC_DDR_SUPPORT
|
|
/* Allow EMIF to control DDR_RESET */
|
|
writel(0x00000000, &ddrctrl->ddrioctrl);
|
|
#else
|
|
/* Override EMIF DDR_RESET control */
|
|
writel(0x80000000, &ddrctrl->ddrioctrl);
|
|
#endif /* CONFIG_SPL_RTC_DDR_SUPPORT */
|
|
#endif
|
|
|
|
/* Program EMIF instance */
|
|
config_ddr_phy(regs, nr);
|
|
set_sdram_timings(regs, nr);
|
|
if (get_emif_rev(EMIF1_BASE) == EMIF_4D5)
|
|
config_sdram_emif4d5(regs, nr);
|
|
else
|
|
config_sdram(regs, nr);
|
|
}
|