diff options
author | Timur Tabi <timur@freescale.com> | 2008-02-08 19:15:54 (GMT) |
---|---|---|
committer | Kim Phillips <kim.phillips@freescale.com> | 2008-03-26 00:16:43 (GMT) |
commit | b55d98c6d5b8694e560a0e727b14cb6921d7cfcc (patch) | |
tree | 5da4295628dbf41505d118b6b28c0f00882123cd /drivers | |
parent | aa6f6d171a1f9f46ee4f03ad6acb97a6bfb71855 (diff) | |
download | u-boot-fsl-qoriq-b55d98c6d5b8694e560a0e727b14cb6921d7cfcc.tar.xz |
NET: Add Vitesse VSC7385 firmware uploading
The Vitesse VSC7385 is a 5-port switch found on the Freescale MPC8349E-mITX
and other boards. A small firwmare must be uploaded to its on-board memory
before it can be enabled. This patch adds the code which uploads firmware
(but not the firmware itself).
Previously, this feature was provided by a U-Boot application that was
made available only on Freescale BSPs. The VSC7385 firmware must still
be obtained separately, but at least there is no longer a need for a separate
application.
Signed-off-by: Timur Tabi <timur@freescale.com>
Acked-by: Ben Warren <biggerbadderben@gmail.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/Makefile | 1 | ||||
-rw-r--r-- | drivers/net/vsc7385.c | 101 |
2 files changed, 102 insertions, 0 deletions
diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 7d7df9c..320dc3e 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -58,6 +58,7 @@ COBJS-y += tigon3.o COBJS-y += tsec.o COBJS-y += tsi108_eth.o COBJS-y += uli526x.o +COBJS-y += vsc7385.o COBJS := $(COBJS-y) SRCS := $(COBJS:.o=.c) diff --git a/drivers/net/vsc7385.c b/drivers/net/vsc7385.c new file mode 100644 index 0000000..f440ce0 --- /dev/null +++ b/drivers/net/vsc7385.c @@ -0,0 +1,101 @@ +/* + * Vitesse 7385 Switch Firmware Upload + * + * Author: Timur Tabi <timur@freescale.com> + * + * Copyright 2008 Freescale Semiconductor, Inc. This file is licensed + * under the terms of the GNU General Public License version 2. This + * program is licensed "as is" without any warranty of any kind, whether + * express or implied. + * + * This module uploads proprietary firmware for the Vitesse VSC7385 5-port + * switch. + */ + +#include <config.h> + +#ifdef CONFIG_VSC7385_ENET + +#include <common.h> +#include <asm/io.h> +#include <asm/errno.h> + +/* + * Upload a Vitesse VSC7385 firmware image to the hardware + * + * This function takes a pointer to a VSC7385 firmware image and a size, and + * uploads that firmware to the VSC7385. + * + * This firmware is typically located at a board-specific flash address, + * and the size is typically 8KB. + * + * The firmware is Vitesse proprietary. + * + * Further details on the register information can be obtained from Vitesse. + */ +int vsc7385_upload_firmware(void *firmware, unsigned int size) +{ + u8 *fw = firmware; + unsigned int i; + + u32 *gloreset = (u32 *) (CFG_VSC7385_BASE + 0x1c050); + u32 *icpu_ctrl = (u32 *) (CFG_VSC7385_BASE + 0x1c040); + u32 *icpu_addr = (u32 *) (CFG_VSC7385_BASE + 0x1c044); + u32 *icpu_data = (u32 *) (CFG_VSC7385_BASE + 0x1c048); + u32 *icpu_rom_map = (u32 *) (CFG_VSC7385_BASE + 0x1c070); +#ifdef DEBUG + u32 *chipid = (u32 *) (CFG_VSC7385_BASE + 0x1c060); +#endif + + out_be32(gloreset, 3); + udelay(200); + + out_be32(icpu_ctrl, 0x8E); + udelay(20); + + out_be32(icpu_rom_map, 1); + udelay(20); + + /* Write the firmware to I-RAM */ + out_be32(icpu_addr, 0); + udelay(20); + + for (i = 0; i < size; i++) { + out_be32(icpu_data, fw[i]); + udelay(20); + if (ctrlc()) + return -EINTR; + } + + /* Read back and compare */ + out_be32(icpu_addr, 0); + udelay(20); + + for (i = 0; i < size; i++) { + u8 value; + + value = (u8) in_be32(icpu_data); + udelay(20); + if (value != fw[i]) { + debug("VSC7385: Upload mismatch: address 0x%x, " + "read value 0x%x, image value 0x%x\n", + i, value, fw[i]); + + return -EIO; + } + if (ctrlc()) + break; + } + + out_be32(icpu_ctrl, 0x0B); + udelay(20); + +#ifdef DEBUG + printf("VSC7385: Chip ID is %08x\n", in_be32(chipid)); + udelay(20); +#endif + + return 0; +} + +#endif |