[PATCH 25/25] arm: at91: remove leftovers from moving reset code in mach-at91
Sam Ravnborg
sam at ravnborg.org
Mon Jan 1 06:19:39 PST 2018
Signed-off-by: Sam Ravnborg <sam at ravnborg.org>
---
arch/arm/mach-at91/Kconfig | 11 --
arch/arm/mach-at91/Makefile | 5 -
arch/arm/mach-at91/at91sam9260_lowlevel_init.c | 48 -----
arch/arm/mach-at91/at91sam9263_lowlevel_init.c | 48 -----
arch/arm/mach-at91/at91sam926x_lowlevel_init.c | 199 ---------------------
.../mach-at91/include/mach/at91_lowlevel_init.h | 46 -----
6 files changed, 357 deletions(-)
delete mode 100644 arch/arm/mach-at91/at91sam9260_lowlevel_init.c
delete mode 100644 arch/arm/mach-at91/at91sam9263_lowlevel_init.c
delete mode 100644 arch/arm/mach-at91/at91sam926x_lowlevel_init.c
delete mode 100644 arch/arm/mach-at91/include/mach/at91_lowlevel_init.h
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 2c379d96c..b877c269d 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -37,17 +37,6 @@ config HAVE_AT91_BOOTSTRAP
config AT91SAM926X_BOARD_INIT
bool
-# Select if board uses the common at91sam926x_lowlevel_init
-config AT91SAM926X_LWL
- bool
-
-# Select if board uses barebox reset vector from mach-at91
-# as implemented in the *lowlevel_init.c files
-config AT91SAM9260_LWL
- bool
-config AT91SAM9263_LWL
- bool
-
config AT91SAM9_SMC
bool
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index 7193b8690..8462cba60 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -8,11 +8,6 @@ obj-$(CONFIG_CMD_AT91_BOOT_TEST) += boot_test_cmd.o
obj-$(CONFIG_AT91_BOOTSTRAP) += bootstrap.o
-lwl-$(CONFIG_AT91SAM926X_LWL) += at91sam926x_lowlevel_init.o
-
-lwl-$(CONFIG_AT91SAM9260_LWL) += at91sam9260_lowlevel_init.o
-lwl-$(CONFIG_AT91SAM9263_LWL) += at91sam9263_lowlevel_init.o
-
obj-$(CONFIG_AT91SAM9_RESET) += at91sam9_reset.o
obj-$(CONFIG_AT91SAM9G45_RESET) += at91sam9g45_reset.o
diff --git a/arch/arm/mach-at91/at91sam9260_lowlevel_init.c b/arch/arm/mach-at91/at91sam9260_lowlevel_init.c
deleted file mode 100644
index 7f84185ef..000000000
--- a/arch/arm/mach-at91/at91sam9260_lowlevel_init.c
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Copyright (C) 2009-2013 Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
- *
- * Under GPLv2
- */
-
-#define __LOWLEVEL_INIT__
-
-#include <common.h>
-#include <asm/system.h>
-#include <asm/barebox-arm.h>
-#include <asm/barebox-arm-head.h>
-#include <mach/hardware.h>
-#include <mach/at91_pmc.h>
-#include <mach/at91_pio.h>
-#include <mach/at91_rstc.h>
-#include <mach/at91_wdt.h>
-#include <mach/at91sam9_matrix.h>
-#include <mach/at91sam9_sdramc.h>
-#include <mach/at91sam9_smc.h>
-#include <mach/at91_lowlevel_init.h>
-#include <mach/io.h>
-#include <init.h>
-#include <linux/sizes.h>
-
-void __bare_init at91sam9260_lowlevel_init(void)
-{
- struct at91sam926x_lowlevel_cfg cfg;
-
- cfg.pio = IOMEM(AT91SAM9260_BASE_PIOC);
- cfg.sdramc = IOMEM(AT91SAM9260_BASE_SDRAMC);
- cfg.ebi_pio_is_peripha = false;
- cfg.matrix_csa = AT91_MATRIX_EBICSA;
-
- at91sam926x_lowlevel_init(&cfg);
-
- barebox_arm_entry(AT91_CHIPSELECT_1, at91_get_sdram_size(cfg.sdramc),
- NULL);
-}
-
-void __naked __bare_init barebox_arm_reset_vector(void)
-{
- arm_cpu_lowlevel_init();
-
- arm_setup_stack(AT91SAM9260_SRAM_BASE + AT91SAM9260_SRAM_SIZE - 16);
-
- at91sam9260_lowlevel_init();
-}
diff --git a/arch/arm/mach-at91/at91sam9263_lowlevel_init.c b/arch/arm/mach-at91/at91sam9263_lowlevel_init.c
deleted file mode 100644
index 0be84551f..000000000
--- a/arch/arm/mach-at91/at91sam9263_lowlevel_init.c
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Copyright (C) 2009-2013 Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
- *
- * Under GPLv2
- */
-
-#define __LOWLEVEL_INIT__
-
-#include <common.h>
-#include <asm/system.h>
-#include <asm/barebox-arm.h>
-#include <asm/barebox-arm-head.h>
-#include <mach/hardware.h>
-#include <mach/at91_pmc.h>
-#include <mach/at91_pio.h>
-#include <mach/at91_rstc.h>
-#include <mach/at91_wdt.h>
-#include <mach/at91sam9_matrix.h>
-#include <mach/at91sam9_sdramc.h>
-#include <mach/at91sam9_smc.h>
-#include <mach/at91_lowlevel_init.h>
-#include <mach/io.h>
-#include <init.h>
-#include <linux/sizes.h>
-
-void __bare_init at91sam9263_lowlevel_init(void)
-{
- struct at91sam926x_lowlevel_cfg cfg;
-
- cfg.pio = IOMEM(AT91SAM9263_BASE_PIOD);
- cfg.sdramc = IOMEM(AT91SAM9263_BASE_SDRAMC0);
- cfg.ebi_pio_is_peripha = true;
- cfg.matrix_csa = AT91_MATRIX_EBI0CSA;
-
- at91sam926x_lowlevel_init(&cfg);
-
- barebox_arm_entry(AT91_CHIPSELECT_1, at91_get_sdram_size(cfg.sdramc),
- NULL);
-}
-
-void __naked __bare_init barebox_arm_reset_vector(void)
-{
- arm_cpu_lowlevel_init();
-
- arm_setup_stack(AT91SAM9263_SRAM0_BASE + AT91SAM9263_SRAM0_SIZE - 16);
-
- at91sam9263_lowlevel_init();
-}
diff --git a/arch/arm/mach-at91/at91sam926x_lowlevel_init.c b/arch/arm/mach-at91/at91sam926x_lowlevel_init.c
deleted file mode 100644
index 5dd8bc4e6..000000000
--- a/arch/arm/mach-at91/at91sam926x_lowlevel_init.c
+++ /dev/null
@@ -1,199 +0,0 @@
-/*
- * Copyright (C) 2008 Ronetix Ilko Iliev (www.ronetix.at)
- * Copyright (C) 2009-2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
- *
- * Under GPLv2
- */
-
-#define __LOWLEVEL_INIT__
-
-#include <common.h>
-#include <asm/system.h>
-#include <asm/barebox-arm.h>
-#include <asm/barebox-arm-head.h>
-#include <mach/hardware.h>
-#include <mach/at91_pmc.h>
-#include <mach/at91_pio.h>
-#include <mach/at91_rstc.h>
-#include <mach/at91_wdt.h>
-#include <mach/at91sam9_matrix.h>
-#include <mach/at91sam9_sdramc.h>
-#include <mach/at91sam9_smc.h>
-#include <mach/at91_lowlevel_init.h>
-#include <mach/gpio.h>
-#include <mach/io.h>
-#include <init.h>
-#include <linux/sizes.h>
-
-#include "gpio.h"
-
-static void inline access_sdram(void)
-{
- writel(0x00000000, AT91_SDRAM_BASE);
-}
-
-static void inline pmc_check_mckrdy(void)
-{
- u32 r;
-
- do {
- r = at91_pmc_read(AT91_PMC_SR);
- } while (!(r & AT91_PMC_MCKRDY));
-}
-
-static int inline running_in_sram(void)
-{
- u32 addr = get_pc();
-
- addr >>= 28;
- return addr == 0;
-}
-
-#define at91_sdramc_read(field) \
- __raw_readl(cfg->sdramc + field)
-
-#define at91_sdramc_write(field, value) \
- __raw_writel(value, cfg->sdramc + field)
-
-void __bare_init at91sam926x_sdramc_init(struct at91sam926x_lowlevel_cfg *cfg)
-{
- u32 r;
- int i;
- int in_sram = running_in_sram();
-
- /*
- * SDRAMC Check if Refresh Timer Counter is already initialized
- */
- r = at91_sdramc_read(AT91_SDRAMC_TR);
- if (r && !in_sram)
- return;
-
- /* SDRAMC_MR : Normal Mode */
- at91_sdramc_write(AT91_SDRAMC_MR, AT91_SDRAMC_MODE_NORMAL);
-
- /* SDRAMC_TR - Refresh Timer register */
- at91_sdramc_write(AT91_SDRAMC_TR, cfg->sdrc_tr1);
-
- /* SDRAMC_CR - Configuration register*/
- at91_sdramc_write(AT91_SDRAMC_CR, cfg->sdrc_cr);
-
- /* Memory Device Type */
- at91_sdramc_write(AT91_SDRAMC_MDR, cfg->sdrc_mdr);
-
- /* SDRAMC_MR : Precharge All */
- at91_sdramc_write(AT91_SDRAMC_MR, AT91_SDRAMC_MODE_PRECHARGE);
-
- /* access SDRAM */
- access_sdram();
-
- /* SDRAMC_MR : refresh */
- at91_sdramc_write(AT91_SDRAMC_MR, AT91_SDRAMC_MODE_REFRESH);
-
- /* access SDRAM 8 times */
- for (i = 0; i < 8; i++)
- access_sdram();
-
- /* SDRAMC_MR : Load Mode Register */
- at91_sdramc_write(AT91_SDRAMC_MR, AT91_SDRAMC_MODE_LMR);
-
- /* access SDRAM */
- access_sdram();
-
- /* SDRAMC_MR : Normal Mode */
- at91_sdramc_write(AT91_SDRAMC_MR, AT91_SDRAMC_MODE_NORMAL);
-
- /* access SDRAM */
- access_sdram();
-
- /* SDRAMC_TR : Refresh Timer Counter */
- at91_sdramc_write(AT91_SDRAMC_TR, cfg->sdrc_tr2);
-
- /* access SDRAM */
- access_sdram();
-}
-
-void __bare_init at91sam926x_lowlevel_init(struct at91sam926x_lowlevel_cfg *cfg)
-{
- u32 r;
- int in_sram = running_in_sram();
-
- at91sam926x_lowlevel_board_config(cfg);
-
- __raw_writel(cfg->wdt_mr, AT91_BASE_WDT + AT91_WDT_MR);
-
- /* configure PIOx as EBI0 D[16-31] */
- at91_mux_gpio_disable(cfg->pio, cfg->ebi_pio_pdr);
- at91_mux_set_pullup(cfg->pio, cfg->ebi_pio_ppudr, true);
- if (cfg->ebi_pio_is_peripha)
- at91_mux_set_A_periph(cfg->pio, cfg->ebi_pio_ppudr);
-
- at91_sys_write(cfg->matrix_csa, cfg->ebi_csa);
-
- /* flash */
- at91_smc_write(cfg->smc_cs, AT91_SAM9_SMC_MODE, cfg->smc_mode);
-
- at91_smc_write(cfg->smc_cs, AT91_SMC_CYCLE, cfg->smc_cycle);
-
- at91_smc_write(cfg->smc_cs, AT91_SMC_PULSE, cfg->smc_pulse);
-
- at91_smc_write(cfg->smc_cs, AT91_SMC_SETUP, cfg->smc_setup);
-
- /*
- * PMC Check if the PLL is already initialized
- */
- r = at91_pmc_read(AT91_PMC_MCKR);
- if (r & AT91_PMC_CSS && !in_sram)
- return;
-
- /*
- * Enable the Main Oscillator
- */
- at91_pmc_write(AT91_CKGR_MOR, cfg->pmc_mor);
-
- do {
- r = at91_pmc_read(AT91_PMC_SR);
- } while (!(r & AT91_PMC_MOSCS));
-
- /*
- * PLLAR: x MHz for PCK
- */
- at91_pmc_write(AT91_CKGR_PLLAR, cfg->pmc_pllar);
-
- do {
- r = at91_pmc_read(AT91_PMC_SR);
- } while (!(r & AT91_PMC_LOCKA));
-
- /*
- * PCK/x = MCK Master Clock from SLOW
- */
- at91_pmc_write(AT91_PMC_MCKR, cfg->pmc_mckr1);
-
- pmc_check_mckrdy();
-
- /*
- * PCK/x = MCK Master Clock from PLLA
- */
- at91_pmc_write(AT91_PMC_MCKR, cfg->pmc_mckr2);
-
- pmc_check_mckrdy();
-
- /*
- * Init SDRAM
- */
- at91sam926x_sdramc_init(cfg);
-
- /* User reset enable*/
- at91_sys_write(AT91_RSTC_MR, cfg->rstc_rmr);
-
-#ifdef CONFIG_SYS_MATRIX_MCFG_REMAP
- /* MATRIX_MCFG - REMAP all masters */
- at91_sys_write(AT91_MATRIX_MCFG0, 0x1FF);
-#endif
- /*
- * When boot from external boot
- * we need to enable mck and ohter clock
- * so enable all of them
- * We will shutdown what we don't need later
- */
- at91_pmc_write(AT91_PMC_PCER, 0xffffffff);
-}
diff --git a/arch/arm/mach-at91/include/mach/at91_lowlevel_init.h b/arch/arm/mach-at91/include/mach/at91_lowlevel_init.h
deleted file mode 100644
index d72dfff38..000000000
--- a/arch/arm/mach-at91/include/mach/at91_lowlevel_init.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright (C) 2009-2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
- *
- * Under GPLv2
- */
-
-#ifndef __AT91_LOWLEVEL_INIT_H__
-#define __AT91_LOWLEVEL_INIT_H__
-
-struct at91sam926x_lowlevel_cfg {
- /* SoC specific */
- void __iomem *pio;
- void __iomem *sdramc;
- u32 ebi_pio_is_peripha;
- u32 matrix_csa;
-
- /* board specific */
- u32 wdt_mr;
- u32 ebi_pio_pdr;
- u32 ebi_pio_ppudr;
- u32 ebi_csa;
- u32 smc_cs;
- u32 smc_mode;
- u32 smc_cycle;
- u32 smc_pulse;
- u32 smc_setup;
- u32 pmc_mor;
- u32 pmc_pllar;
- u32 pmc_mckr1;
- u32 pmc_mckr2;
- u32 sdrc_cr;
- u32 sdrc_tr1;
- u32 sdrc_mdr;
- u32 sdrc_tr2;
- u32 rstc_rmr;
-};
-
-#ifdef CONFIG_AT91SAM926X_LWL
-void at91sam926x_lowlevel_board_config(struct at91sam926x_lowlevel_cfg *cfg);
-void at91sam926x_lowlevel_init(struct at91sam926x_lowlevel_cfg *cfg);
-#else
-static inline void at91sam926x_lowlevel_board_config(struct at91sam926x_lowlevel_cfg *cfg) {}
-static inline void at91sam926x_lowlevel_init(struct at91sam926x_lowlevel_cfg *cfg) {}
-#endif
-
-#endif /* __AT91_LOWLEVEL_INIT_H__ */
--
2.12.0
More information about the barebox
mailing list