nand_spl: remove nand_spl infrastructure

[karo-tx-uboot.git] / nand_spl / nand_boot_fsl_elbc.c

diff --git a/nand_spl/nand_boot_fsl_elbc.c b/nand_spl/nand_boot_fsl_elbc.c
deleted file mode 100644 (file)
index 1afa1a2..0000000
--- a/nand_spl/nand_boot_fsl_elbc.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * NAND boot for Freescale Enhanced Local Bus Controller, Flash Control Machine
- *
- * (C) Copyright 2006-2008
- * Stefan Roese, DENX Software Engineering, sr@denx.de.
- *
- * Copyright (c) 2008 Freescale Semiconductor, Inc.
- * Author: Scott Wood <scottwood@freescale.com>
- *
- * SPDX-License-Identifier:    GPL-2.0+
- */
-
-#include <common.h>
-#include <asm/io.h>
-#include <asm/fsl_lbc.h>
-#include <linux/mtd/nand.h>
-
-#define WINDOW_SIZE 8192
-
-static void nand_wait(void)
-{
-       fsl_lbc_t *regs = LBC_BASE_ADDR;
-
-       for (;;) {
-               uint32_t status = in_be32(&regs->ltesr);
-
-               if (status == 1)
-                       return;
-
-               if (status & 1) {
-                       puts("read failed (ltesr)\n");
-                       for (;;);
-               }
-       }
-}
-
-static void nand_load(unsigned int offs, int uboot_size, uchar *dst)
-{
-       fsl_lbc_t *regs = LBC_BASE_ADDR;
-       uchar *buf = (uchar *)CONFIG_SYS_NAND_BASE;
-       const int large = CONFIG_SYS_NAND_OR_PRELIM & OR_FCM_PGS;
-       const int block_shift = large ? 17 : 14;
-       const int block_size = 1 << block_shift;
-       const int page_size = large ? 2048 : 512;
-       const int bad_marker = large ? page_size + 0 : page_size + 5;
-       int fmr = (15 << FMR_CWTO_SHIFT) | (2 << FMR_AL_SHIFT) | 2;
-       int pos = 0;
-
-       if (offs & (block_size - 1)) {
-               puts("bad offset\n");
-               for (;;);
-       }
-
-       if (large) {
-               fmr |= FMR_ECCM;
-               __raw_writel((NAND_CMD_READ0 << FCR_CMD0_SHIFT) |
-                       (NAND_CMD_READSTART << FCR_CMD1_SHIFT),
-                       &regs->fcr);
-               __raw_writel(
-                       (FIR_OP_CW0 << FIR_OP0_SHIFT) |
-                       (FIR_OP_CA  << FIR_OP1_SHIFT) |
-                       (FIR_OP_PA  << FIR_OP2_SHIFT) |
-                       (FIR_OP_CW1 << FIR_OP3_SHIFT) |
-                       (FIR_OP_RBW << FIR_OP4_SHIFT),
-                       &regs->fir);
-       } else {
-               __raw_writel(NAND_CMD_READ0 << FCR_CMD0_SHIFT, &regs->fcr);
-               __raw_writel(
-                       (FIR_OP_CW0 << FIR_OP0_SHIFT) |
-                       (FIR_OP_CA  << FIR_OP1_SHIFT) |
-                       (FIR_OP_PA  << FIR_OP2_SHIFT) |
-                       (FIR_OP_RBW << FIR_OP3_SHIFT),
-                       &regs->fir);
-       }
-
-       __raw_writel(0, &regs->fbcr);
-
-       while (pos < uboot_size) {
-               int i = 0;
-               __raw_writel(offs >> block_shift, &regs->fbar);
-
-               do {
-                       int j;
-                       unsigned int page_offs = (offs & (block_size - 1)) << 1;
-
-                       __raw_writel(~0, &regs->ltesr);
-                       __raw_writel(0, &regs->lteatr);
-                       __raw_writel(page_offs, &regs->fpar);
-                       __raw_writel(fmr, &regs->fmr);
-                       sync();
-                       __raw_writel(0, &regs->lsor);
-                       nand_wait();
-
-                       page_offs %= WINDOW_SIZE;
-
-                       /*
-                        * If either of the first two pages are marked bad,
-                        * continue to the next block.
-                        */
-                       if (i++ < 2 && buf[page_offs + bad_marker] != 0xff) {
-                               puts("skipping\n");
-                               offs = (offs + block_size) & ~(block_size - 1);
-                               pos &= ~(block_size - 1);
-                               break;
-                       }
-
-                       for (j = 0; j < page_size; j++)
-                               dst[pos + j] = buf[page_offs + j];
-
-                       pos += page_size;
-                       offs += page_size;
-               } while ((offs & (block_size - 1)) && (pos < uboot_size));
-       }
-}
-
-/*
- * The main entry for NAND booting. It's necessary that SDRAM is already
- * configured and available since this code loads the main U-Boot image
- * from NAND into SDRAM and starts it from there.
- */
-void nand_boot(void)
-{
-       __attribute__((noreturn)) void (*uboot)(void);
-
-       /*
-        * Load U-Boot image from NAND into RAM
-        */
-       nand_load(CONFIG_SYS_NAND_U_BOOT_OFFS, CONFIG_SYS_NAND_U_BOOT_SIZE,
-                 (uchar *)CONFIG_SYS_NAND_U_BOOT_DST);
-
-       /*
-        * Jump to U-Boot image
-        */
-       puts("transfering control\n");
-       /*
-        * Clean d-cache and invalidate i-cache, to
-        * make sure that no stale data is executed.
-        */
-       flush_cache(CONFIG_SYS_NAND_U_BOOT_DST, CONFIG_SYS_NAND_U_BOOT_SIZE);
-       uboot = (void *)CONFIG_SYS_NAND_U_BOOT_START;
-       uboot();
-}