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-rw-r--r--arch/arm/cpu/arm926ejs/spear/spl.c302
1 files changed, 0 insertions, 302 deletions
diff --git a/arch/arm/cpu/arm926ejs/spear/spl.c b/arch/arm/cpu/arm926ejs/spear/spl.c
deleted file mode 100644
index b5b9945a87f..00000000000
--- a/arch/arm/cpu/arm926ejs/spear/spl.c
+++ /dev/null
@@ -1,302 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright (C) 2011
- * Heiko Schocher, DENX Software Engineering, hs@denx.de.
- *
- * Copyright (C) 2012 Stefan Roese <sr@denx.de>
- */
-
-#include <common.h>
-#include <init.h>
-#include <spl.h>
-#include <version.h>
-#include <asm/io.h>
-#include <asm/ptrace.h>
-#include <asm/arch/hardware.h>
-#include <asm/arch/spr_defs.h>
-#include <asm/arch/spr_misc.h>
-#include <asm/arch/spr_syscntl.h>
-#include <linux/mtd/st_smi.h>
-
-/* Reserve some space to store the BootROM's stack pointer during SPL operation.
- * The BSS cannot be used for this purpose because it will be zeroed after
- * having stored the pointer, so force the location to the data section.
- */
-u32 bootrom_stash_sp __section(".data");
-
-static void ddr_clock_init(void)
-{
- struct misc_regs *misc_p = (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
- u32 clkenb, ddrpll;
-
- clkenb = readl(&misc_p->periph1_clken);
- clkenb &= ~PERIPH_MPMCMSK;
- clkenb |= PERIPH_MPMC_WE;
-
- /* Intentionally done twice */
- writel(clkenb, &misc_p->periph1_clken);
- writel(clkenb, &misc_p->periph1_clken);
-
- ddrpll = readl(&misc_p->pll_ctr_reg);
- ddrpll &= ~MEM_CLK_SEL_MSK;
-#if (CONFIG_DDR_HCLK)
- ddrpll |= MEM_CLK_HCLK;
-#elif (CONFIG_DDR_2HCLK)
- ddrpll |= MEM_CLK_2HCLK;
-#elif (CONFIG_DDR_PLL2)
- ddrpll |= MEM_CLK_PLL2;
-#else
-#error "please define one of CONFIG_DDR_(HCLK|2HCLK|PLL2)"
-#endif
- writel(ddrpll, &misc_p->pll_ctr_reg);
-
- writel(readl(&misc_p->periph1_clken) | PERIPH_MPMC_EN,
- &misc_p->periph1_clken);
-}
-
-static void mpmc_init_values(void)
-{
- u32 i;
- u32 *mpmc_reg_p = (u32 *)CONFIG_SPEAR_MPMCBASE;
- u32 *mpmc_val_p = &mpmc_conf_vals[0];
-
- for (i = 0; i < CONFIG_SPEAR_MPMCREGS; i++, mpmc_reg_p++, mpmc_val_p++)
- writel(*mpmc_val_p, mpmc_reg_p);
-
- mpmc_reg_p = (u32 *)CONFIG_SPEAR_MPMCBASE;
-
- /*
- * MPMC controller start
- * MPMC waiting for DLLLOCKREG high
- */
- writel(0x01000100, &mpmc_reg_p[7]);
-
- while (!(readl(&mpmc_reg_p[3]) & 0x10000))
- ;
-}
-
-static void mpmc_init(void)
-{
- /* Clock related settings for DDR */
- ddr_clock_init();
-
- /*
- * DDR pad register bits are different for different SoCs
- * Compensation values are also handled separately
- */
- plat_ddr_init();
-
- /* Initialize mpmc register values */
- mpmc_init_values();
-}
-
-static void pll_init(void)
-{
- struct misc_regs *misc_p = (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
-
- /* Initialize PLLs */
- writel(FREQ_332, &misc_p->pll1_frq);
- writel(0x1C0A, &misc_p->pll1_cntl);
- writel(0x1C0E, &misc_p->pll1_cntl);
- writel(0x1C06, &misc_p->pll1_cntl);
- writel(0x1C0E, &misc_p->pll1_cntl);
-
- writel(FREQ_332, &misc_p->pll2_frq);
- writel(0x1C0A, &misc_p->pll2_cntl);
- writel(0x1C0E, &misc_p->pll2_cntl);
- writel(0x1C06, &misc_p->pll2_cntl);
- writel(0x1C0E, &misc_p->pll2_cntl);
-
- /* wait for pll locks */
- while (!(readl(&misc_p->pll1_cntl) & 0x1))
- ;
- while (!(readl(&misc_p->pll2_cntl) & 0x1))
- ;
-}
-
-static void mac_init(void)
-{
- struct misc_regs *misc_p = (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
-
- writel(readl(&misc_p->periph1_clken) & (~PERIPH_GMAC),
- &misc_p->periph1_clken);
-
- writel(SYNTH23, &misc_p->gmac_synth_clk);
-
- switch (get_socrev()) {
- case SOC_SPEAR600_AA:
- case SOC_SPEAR600_AB:
- case SOC_SPEAR600_BA:
- case SOC_SPEAR600_BB:
- case SOC_SPEAR600_BC:
- case SOC_SPEAR600_BD:
- writel(0x0, &misc_p->gmac_ctr_reg);
- break;
-
- case SOC_SPEAR300:
- case SOC_SPEAR310:
- case SOC_SPEAR320:
- writel(0x4, &misc_p->gmac_ctr_reg);
- break;
- }
-
- writel(readl(&misc_p->periph1_clken) | PERIPH_GMAC,
- &misc_p->periph1_clken);
-
- writel(readl(&misc_p->periph1_rst) | PERIPH_GMAC,
- &misc_p->periph1_rst);
- writel(readl(&misc_p->periph1_rst) & (~PERIPH_GMAC),
- &misc_p->periph1_rst);
-}
-
-static void sys_init(void)
-{
- struct misc_regs *misc_p = (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
- struct syscntl_regs *syscntl_p =
- (struct syscntl_regs *)CONFIG_SPEAR_SYSCNTLBASE;
-
- /* Set system state to SLOW */
- writel(SLOW, &syscntl_p->scctrl);
- writel(PLL_TIM << 3, &syscntl_p->scpllctrl);
-
- /* Initialize PLLs */
- pll_init();
-
- /*
- * Ethernet configuration
- * To be done only if the tftp boot is not selected already
- * Boot code ensures the correct configuration in tftp booting
- */
- if (!tftp_boot_selected())
- mac_init();
-
- writel(RTC_DISABLE | PLLTIMEEN, &misc_p->periph_clk_cfg);
- writel(0x555, &misc_p->amba_clk_cfg);
-
- writel(NORMAL, &syscntl_p->scctrl);
-
- /* Wait for system to switch to normal mode */
- while (((readl(&syscntl_p->scctrl) >> MODE_SHIFT) & MODE_MASK)
- != NORMAL)
- ;
-}
-
-/*
- * get_socrev
- *
- * Get SoC Revision.
- * @return SOC_SPEARXXX
- */
-int get_socrev(void)
-{
-#if defined(CONFIG_SPEAR600)
- struct misc_regs *misc_p = (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
- u32 soc_id = readl(&misc_p->soc_core_id);
- u32 pri_socid = (soc_id >> SOC_PRI_SHFT) & 0xFF;
- u32 sec_socid = (soc_id >> SOC_SEC_SHFT) & 0xFF;
-
- if ((pri_socid == 'B') && (sec_socid == 'B'))
- return SOC_SPEAR600_BB;
- else if ((pri_socid == 'B') && (sec_socid == 'C'))
- return SOC_SPEAR600_BC;
- else if ((pri_socid == 'B') && (sec_socid == 'D'))
- return SOC_SPEAR600_BD;
- else if (soc_id == 0)
- return SOC_SPEAR600_BA;
- else
- return SOC_SPEAR_NA;
-#elif defined(CONFIG_SPEAR300)
- return SOC_SPEAR300;
-#elif defined(CONFIG_SPEAR310)
- return SOC_SPEAR310;
-#elif defined(CONFIG_SPEAR320)
- return SOC_SPEAR320;
-#endif
-}
-
-/*
- * SNOR (Serial NOR flash) related functions
- */
-static void snor_init(void)
-{
- struct smi_regs *const smicntl =
- (struct smi_regs * const)CONFIG_SYS_SMI_BASE;
-
- /* Setting the fast mode values. SMI working at 166/4 = 41.5 MHz */
- writel(HOLD1 | FAST_MODE | BANK_EN | DSEL_TIME | PRESCAL4,
- &smicntl->smi_cr1);
-}
-
-u32 spl_boot_device(void)
-{
- u32 mode = 0;
-
- if (usb_boot_selected()) {
- mode = BOOT_DEVICE_BOOTROM;
- } else if (snor_boot_selected()) {
- /* SNOR-SMI initialization */
- snor_init();
-
- mode = BOOT_DEVICE_NOR;
- }
-
- return mode;
-}
-
-void board_boot_order(u32 *spl_boot_list)
-{
- spl_boot_list[0] = spl_boot_device();
-
- /*
- * If the main boot device (eg. NOR) is empty, try to jump back into the
- * BootROM for USB boot process.
- */
- if (USB_BOOT_SUPPORTED)
- spl_boot_list[1] = BOOT_DEVICE_BOOTROM;
-}
-
-void board_init_f(ulong dummy)
-{
- struct misc_regs *misc_p = (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
-
- /* Initialize PLLs */
- sys_init();
-
- preloader_console_init();
- arch_cpu_init();
-
- /* Enable IPs (release reset) */
- writel(PERIPH_RST_ALL, &misc_p->periph1_rst);
-
- /* Initialize MPMC */
- puts("Configure DDR\n");
- mpmc_init();
- spear_late_init();
-}
-
-/*
- * In a few cases (Ethernet, UART or USB boot, we might want to go back into the
- * BootROM code right after having initialized a few components like the DRAM).
- * The following function is called from SPL common code (board_init_r).
- */
-int board_return_to_bootrom(struct spl_image_info *spl_image,
- struct spl_boot_device *bootdev)
-{
- /*
- * Retrieve the BootROM's stack pointer and jump back to the start of
- * the SPL, where we can easily branch back into the BootROM. Don't do
- * it right here because SPL might be compiled in Thumb mode while the
- * BootROM expects ARM mode.
- */
- asm volatile ("ldr r0, =bootrom_stash_sp;"
- "ldr r0, [r0];"
- "mov sp, r0;"
-#if defined(CONFIG_SPL_SYS_THUMB_BUILD)
- "blx back_to_bootrom;"
-#else
- "bl back_to_bootrom;"
-#endif
- );
-
- return 0;
-}