Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-12-29 22:43:10 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/board/atmark-techno/armadillo-800eva/armadillo-800eva.c
Harald Seiler 35b65dd8ef reset: Remove addr parameter from reset_cpu() 
Historically, the reset_cpu() function had an `addr` parameter which was
meant to pass in an address of the reset vector location, where the CPU
should reset to.  This feature is no longer used anywhere in U-Boot as
all reset_cpu() implementations now ignore the passed value.  Generic
code has been added which always calls reset_cpu() with `0` which means
this feature can no longer be used easily anyway.

Over time, many implementations seem to have "misunderstood" the
existence of this parameter as a way to customize/parameterize the reset
(e.g.  COLD vs WARM resets).  As this is not properly supported, the
code will almost always not do what it is intended to (because all
call-sites just call reset_cpu() with 0).

To avoid confusion and to clean up the codebase from unused left-overs
of the past, remove the `addr` parameter entirely.  Code which intends
to support different kinds of resets should be rewritten as a sysreset
driver instead.

This transformation was done with the following coccinelle patch:

    @@
    expression argvalue;
    @@
    - reset_cpu(argvalue)
    + reset_cpu()

    @@
    identifier argname;
    type argtype;
    @@
    - reset_cpu(argtype argname)
    + reset_cpu(void)
    { ... }

Signed-off-by: Harald Seiler <hws@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-03-02 14:03:02 -05:00

327 lines
8 KiB
C
Raw Blame History

/*
* Copyright (C) 2012 Renesas Solutions Corp.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <cpu_func.h>
#include <init.h>
#include <malloc.h>
#include <asm/global_data.h>
#include <asm/processor.h>
#include <asm/mach-types.h>
#include <asm/io.h>
#include <asm/arch/sys_proto.h>
#include <asm/gpio.h>
#include <asm/arch/rmobile.h>
#define s_init_wait(cnt) \
({ \
volatile u32 i = 0x10000 * cnt; \
while (i > 0) \
i--; \
})
#define USBCR1 0xE605810A
void s_init(void)
{
struct r8a7740_rwdt *rwdt0 = (struct r8a7740_rwdt *)RWDT0_BASE;
struct r8a7740_rwdt *rwdt1 = (struct r8a7740_rwdt *)RWDT1_BASE;
struct r8a7740_cpg *cpg = (struct r8a7740_cpg *)CPG_BASE;
struct r8a7740_bsc *bsc = (struct r8a7740_bsc *)BSC_BASE;
struct r8a7740_ddrp *ddrp = (struct r8a7740_ddrp *)DDRP_BASE;
struct r8a7740_dbsc *dbsc = (struct r8a7740_dbsc *)DBSC_BASE;
/* Watchdog init */
writew(0xA500, &rwdt0->rwtcsra0);
writew(0xA500, &rwdt1->rwtcsra0);
/* CPG */
writel(0xFF800080, &cpg->rmstpcr4);
writel(0xFF800080, &cpg->smstpcr4);
/* USB clock */
writel(0x00000080, &cpg->usbckcr);
s_init_wait(1);
/* USBCR1 */
writew(0x0710, USBCR1);
/* FRQCR */
writel(0x00000000, &cpg->frqcrb);
writel(0x62030533, &cpg->frqcra);
writel(0x208A354E, &cpg->frqcrc);
writel(0x80331050, &cpg->frqcrb);
s_init_wait(1);
writel(0x00000000, &cpg->frqcrd);
s_init_wait(1);
/* SUBClk */
writel(0x0000010B, &cpg->subckcr);
/* PLL */
writel(0x00004004, &cpg->pllc01cr);
s_init_wait(1);
writel(0xa0000000, &cpg->pllc2cr);
s_init_wait(2);
/* BSC */
writel(0x0000001B, &bsc->cmncr);
writel(0x20000000, &dbsc->dbcmd);
writel(0x10009C40, &dbsc->dbcmd);
s_init_wait(1);
writel(0x00000007, &dbsc->dbkind);
writel(0x0E030A02, &dbsc->dbconf0);
writel(0x00000001, &dbsc->dbphytype);
writel(0x00000000, &dbsc->dbbl);
writel(0x00000006, &dbsc->dbtr0);
writel(0x00000005, &dbsc->dbtr1);
writel(0x00000000, &dbsc->dbtr2);
writel(0x00000006, &dbsc->dbtr3);
writel(0x00080006, &dbsc->dbtr4);
writel(0x00000015, &dbsc->dbtr5);
writel(0x0000000f, &dbsc->dbtr6);
writel(0x00000004, &dbsc->dbtr7);
writel(0x00000018, &dbsc->dbtr8);
writel(0x00000006, &dbsc->dbtr9);
writel(0x00000006, &dbsc->dbtr10);
writel(0x0000000F, &dbsc->dbtr11);
writel(0x0000000D, &dbsc->dbtr12);
writel(0x000000A0, &dbsc->dbtr13);
writel(0x000A0003, &dbsc->dbtr14);
writel(0x00000003, &dbsc->dbtr15);
writel(0x40005005, &dbsc->dbtr16);
writel(0x0C0C0000, &dbsc->dbtr17);
writel(0x00000200, &dbsc->dbtr18);
writel(0x00000040, &dbsc->dbtr19);
writel(0x00000001, &dbsc->dbrnk0);
writel(0x00000110, &dbsc->dbdficnt);
writel(0x00000101, &ddrp->funcctrl);
writel(0x00000001, &ddrp->dllctrl);
writel(0x00000186, &ddrp->zqcalctrl);
writel(0xB3440051, &ddrp->zqodtctrl);
writel(0x94449443, &ddrp->rdctrl);
writel(0x000000C0, &ddrp->rdtmg);
writel(0x00000101, &ddrp->fifoinit);
writel(0x02060506, &ddrp->outctrl);
writel(0x00004646, &ddrp->dqcalofs1);
writel(0x00004646, &ddrp->dqcalofs2);
writel(0x800000aa, &ddrp->dqcalexp);
writel(0x00000000, &ddrp->dllctrl);
writel(0x00000000, DDRPNCNT);
writel(0x0000000C, &dbsc->dbcmd);
readl(&dbsc->dbwait);
s_init_wait(1);
writel(0x00000002, DDRPNCNT);
writel(0x0000000C, &dbsc->dbcmd);
readl(&dbsc->dbwait);
s_init_wait(1);
writel(0x00000187, &ddrp->zqcalctrl);
writel(0x00009C40, &dbsc->dbcmd);
readl(&dbsc->dbwait);
s_init_wait(1);
writel(0x00009C40, &dbsc->dbcmd);
readl(&dbsc->dbwait);
s_init_wait(1);
writel(0x00000010, &dbsc->dbdficnt);
writel(0x02060507, &ddrp->outctrl);
writel(0x00009C40, &dbsc->dbcmd);
readl(&dbsc->dbwait);
s_init_wait(1);
writel(0x21009C40, &dbsc->dbcmd);
readl(&dbsc->dbwait);
s_init_wait(1);
writel(0x00009C40, &dbsc->dbcmd);
readl(&dbsc->dbwait);
s_init_wait(1);
writel(0x00009C40, &dbsc->dbcmd);
readl(&dbsc->dbwait);
s_init_wait(1);
writel(0x00009C40, &dbsc->dbcmd);
readl(&dbsc->dbwait);
s_init_wait(1);
writel(0x00009C40, &dbsc->dbcmd);
readl(&dbsc->dbwait);
s_init_wait(1);
writel(0x11000044, &dbsc->dbcmd);
readl(&dbsc->dbwait);
s_init_wait(1);
writel(0x2A000000, &dbsc->dbcmd);
readl(&dbsc->dbwait);
s_init_wait(1);
writel(0x2B000000, &dbsc->dbcmd);
readl(&dbsc->dbwait);
writel(0x29000004, &dbsc->dbcmd);
readl(&dbsc->dbwait);
writel(0x28001520, &dbsc->dbcmd);
readl(&dbsc->dbwait);
s_init_wait(1);
writel(0x03000200, &dbsc->dbcmd);
readl(&dbsc->dbwait);
s_init_wait(1);
writel(0x000001FF, &dbsc->dbrfcnf0);
writel(0x00010C30, &dbsc->dbrfcnf1);
writel(0x00000000, &dbsc->dbrfcnf2);
writel(0x00000001, &dbsc->dbrfen);
writel(0x00000001, &dbsc->dbacen);
/* BSC */
writel(0x00410400, &bsc->cs0bcr);
writel(0x00410400, &bsc->cs2bcr);
writel(0x00410400, &bsc->cs5bbcr);
writel(0x02CB0400, &bsc->cs6abcr);
writel(0x00000440, &bsc->cs0wcr);
writel(0x00000440, &bsc->cs2wcr);
writel(0x00000240, &bsc->cs5bwcr);
writel(0x00000240, &bsc->cs6awcr);
writel(0x00000005, &bsc->rbwtcnt);
writel(0x00000002, &bsc->cs0wcr2);
writel(0x00000002, &bsc->cs2wcr2);
writel(0x00000002, &bsc->cs4wcr2);
}
#define GPIO_ICCR (0xE60581A0)
#define ICCR_15BIT (1 << 15) /* any time 1 */
#define IIC0_CONTA (1 << 7)
#define IIC0_CONTB (1 << 6)
#define IIC1_CONTA (1 << 5)
#define IIC1_CONTB (1 << 4)
#define IIC0_PS33E (1 << 1)
#define IIC1_PS33E (1 << 0)
#define GPIO_ICCR_DATA \
(ICCR_15BIT | \
IIC0_CONTA | IIC0_CONTB | IIC1_CONTA | \
IIC1_CONTB | IIC0_PS33E | IIC1_PS33E)
#define MSTPCR1 0xE6150134
#define TMU0_MSTP125 (1 << 25)
#define I2C0_MSTP116 (1 << 16)
#define MSTPCR3 0xE615013C
#define I2C1_MSTP323 (1 << 23)
#define GETHER_MSTP309 (1 << 9)
#define GPIO_SCIFA1_TXD (0xE60520C4)
#define GPIO_SCIFA1_RXD (0xE60520C3)
int board_early_init_f(void)
{
/* TMU */
clrbits_le32(MSTPCR1, TMU0_MSTP125);
/* GETHER */
clrbits_le32(MSTPCR3, GETHER_MSTP309);
/* I2C 0/1 */
clrbits_le32(MSTPCR1, I2C0_MSTP116);
clrbits_le32(MSTPCR3, I2C1_MSTP323);
/* SCIFA1 */
writeb(1, GPIO_SCIFA1_TXD); /* SCIFA1_TXD */
writeb(1, GPIO_SCIFA1_RXD); /* SCIFA1_RXD */
/* IICCR */
writew(GPIO_ICCR_DATA, GPIO_ICCR);
return 0;
}
DECLARE_GLOBAL_DATA_PTR;
int board_init(void)
{
/* board id for linux */
gd->bd->bi_arch_number = MACH_TYPE_ARMADILLO800EVA;
/* adress of boot parameters */
gd->bd->bi_boot_params = ARMADILLO_800EVA_SDRAM_BASE + 0x100;
/* Init PFC controller */
r8a7740_pinmux_init();
/* GETHER Enable */
gpio_request(GPIO_FN_ET_CRS, NULL);
gpio_request(GPIO_FN_ET_MDC, NULL);
gpio_request(GPIO_FN_ET_MDIO, NULL);
gpio_request(GPIO_FN_ET_TX_ER, NULL);
gpio_request(GPIO_FN_ET_RX_ER, NULL);
gpio_request(GPIO_FN_ET_ERXD0, NULL);
gpio_request(GPIO_FN_ET_ERXD1, NULL);
gpio_request(GPIO_FN_ET_ERXD2, NULL);
gpio_request(GPIO_FN_ET_ERXD3, NULL);
gpio_request(GPIO_FN_ET_TX_CLK, NULL);
gpio_request(GPIO_FN_ET_TX_EN, NULL);
gpio_request(GPIO_FN_ET_ETXD0, NULL);
gpio_request(GPIO_FN_ET_ETXD1, NULL);
gpio_request(GPIO_FN_ET_ETXD2, NULL);
gpio_request(GPIO_FN_ET_ETXD3, NULL);
gpio_request(GPIO_FN_ET_PHY_INT, NULL);
gpio_request(GPIO_FN_ET_COL, NULL);
gpio_request(GPIO_FN_ET_RX_DV, NULL);
gpio_request(GPIO_FN_ET_RX_CLK, NULL);
gpio_request(GPIO_PORT18, NULL); /* PHY_RST */
gpio_direction_output(GPIO_PORT18, 1);
return 0;
}
int dram_init(void)
{
gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
return 0;
}
int board_late_init(void)
{
return 0;
}
void reset_cpu(void)
{
}
Reference in a new issue View git blame Copy permalink