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Diffstat (limited to 'board/renesas/sh7752evb/spi-boot.c')
-rw-r--r--board/renesas/sh7752evb/spi-boot.c116
1 files changed, 0 insertions, 116 deletions
diff --git a/board/renesas/sh7752evb/spi-boot.c b/board/renesas/sh7752evb/spi-boot.c
deleted file mode 100644
index 91565d44d7..0000000000
--- a/board/renesas/sh7752evb/spi-boot.c
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- * Copyright (C) 2012 Renesas Solutions Corp.
- *
- * This file is subject to the terms and conditions of the GNU Lesser
- * General Public License. See the file "COPYING.LIB" in the main
- * directory of this archive for more details.
- */
-
-#include <common.h>
-
-#define CONFIG_RAM_BOOT_PHYS CONFIG_SYS_TEXT_BASE
-#define CONFIG_SPI_ADDR 0x00000000
-#define CONFIG_SPI_LENGTH CONFIG_SYS_MONITOR_LEN
-#define CONFIG_RAM_BOOT CONFIG_SYS_TEXT_BASE
-
-#define SPIWDMADR 0xFE001018
-#define SPIWDMCNTR 0xFE001020
-#define SPIDMCOR 0xFE001028
-#define SPIDMINTSR 0xFE001188
-#define SPIDMINTMR 0xFE001190
-
-#define SPIDMINTSR_DMEND 0x00000004
-
-#define TBR 0xFE002000
-#define RBR 0xFE002000
-
-#define CR1 0xFE002008
-#define CR2 0xFE002010
-#define CR3 0xFE002018
-#define CR4 0xFE002020
-
-/* CR1 */
-#define SPI_TBE 0x80
-#define SPI_TBF 0x40
-#define SPI_RBE 0x20
-#define SPI_RBF 0x10
-#define SPI_PFONRD 0x08
-#define SPI_SSDB 0x04
-#define SPI_SSD 0x02
-#define SPI_SSA 0x01
-
-/* CR2 */
-#define SPI_RSTF 0x80
-#define SPI_LOOPBK 0x40
-#define SPI_CPOL 0x20
-#define SPI_CPHA 0x10
-#define SPI_L1M0 0x08
-
-/* CR4 */
-#define SPI_TBEI 0x80
-#define SPI_TBFI 0x40
-#define SPI_RBEI 0x20
-#define SPI_RBFI 0x10
-#define SPI_SpiS0 0x02
-#define SPI_SSS 0x01
-
-#define spi_write(val, addr) (*(volatile unsigned long *)(addr)) = val
-#define spi_read(addr) (*(volatile unsigned long *)(addr))
-
-/* M25P80 */
-#define M25_READ 0x03
-
-#define __uses_spiboot2 __attribute__((section(".spiboot2.text")))
-static void __uses_spiboot2 spi_reset(void)
-{
- int timeout = 0x00100000;
-
- /* Make sure the last transaction is finalized */
- spi_write(0x00, CR3);
- spi_write(0x02, CR1);
- while (!(spi_read(CR4) & SPI_SpiS0)) {
- if (timeout-- < 0)
- break;
- }
- spi_write(0x00, CR1);
-
- spi_write(spi_read(CR2) | SPI_RSTF, CR2); /* fifo reset */
- spi_write(spi_read(CR2) & ~SPI_RSTF, CR2);
-
- spi_write(0, SPIDMCOR);
-}
-
-static void __uses_spiboot2 spi_read_flash(void *buf, unsigned long addr,
- unsigned long len)
-{
- spi_write(M25_READ, TBR);
- spi_write((addr >> 16) & 0xFF, TBR);
- spi_write((addr >> 8) & 0xFF, TBR);
- spi_write(addr & 0xFF, TBR);
-
- spi_write(SPIDMINTSR_DMEND, SPIDMINTSR);
- spi_write((unsigned long)buf, SPIWDMADR);
- spi_write(len & 0xFFFFFFE0, SPIWDMCNTR);
- spi_write(1, SPIDMCOR);
-
- spi_write(0xff, CR3);
- spi_write(spi_read(CR1) | SPI_SSDB, CR1);
- spi_write(spi_read(CR1) | SPI_SSA, CR1);
-
- while (!(spi_read(SPIDMINTSR) & SPIDMINTSR_DMEND))
- ;
-
- /* Nagate SP0-SS0 */
- spi_write(0, CR1);
-}
-
-void __uses_spiboot2 spiboot_main(void)
-{
- void (*_start)(void) = (void *)CONFIG_SYS_TEXT_BASE;
-
- spi_reset();
- spi_read_flash((void *)CONFIG_RAM_BOOT_PHYS, CONFIG_SPI_ADDR,
- CONFIG_SPI_LENGTH);
-
- _start();
-}