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110 lines
3.2 KiB
Diff
110 lines
3.2 KiB
Diff
From 087a67d5750a51f5b0851228b5b2518f3300f7d8 Mon Sep 17 00:00:00 2001
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From: Jonas Gorski <jonas.gorski@gmail.com>
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Date: Thu, 3 May 2012 12:17:54 +0200
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Subject: [PATCH 65/79] MIPS: BCM63XX: store the flash type in global variable
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---
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arch/mips/bcm63xx/dev-flash.c | 36 +++++++++++++-------
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.../include/asm/mach-bcm63xx/bcm63xx_dev_flash.h | 2 ++
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2 files changed, 26 insertions(+), 12 deletions(-)
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--- a/arch/mips/bcm63xx/dev-flash.c
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+++ b/arch/mips/bcm63xx/dev-flash.c
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@@ -24,6 +24,8 @@
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#include <bcm63xx_regs.h>
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#include <bcm63xx_io.h>
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+int bcm63xx_attached_flash = -1;
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+
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static struct mtd_partition mtd_partitions[] = {
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{
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.name = "cfe",
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@@ -81,20 +83,23 @@ static int __init bcm63xx_detect_flash_t
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bcm63xx_spi_flash_info[0].max_speed_hz = 40000000;
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val = bcm_misc_readl(MISC_STRAPBUS_6328_REG);
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if (val & STRAPBUS_6328_BOOT_SEL_SERIAL)
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- return BCM63XX_FLASH_TYPE_SERIAL;
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+ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_SERIAL;
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else
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- return BCM63XX_FLASH_TYPE_NAND;
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+ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_NAND;
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+ break;
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case BCM6338_CPU_ID:
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case BCM6345_CPU_ID:
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case BCM6348_CPU_ID:
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/* no way to auto detect so assume parallel */
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- return BCM63XX_FLASH_TYPE_PARALLEL;
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+ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_PARALLEL;
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+ break;
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case BCM6358_CPU_ID:
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val = bcm_gpio_readl(GPIO_STRAPBUS_REG);
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if (val & STRAPBUS_6358_BOOT_SEL_PARALLEL)
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- return BCM63XX_FLASH_TYPE_PARALLEL;
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+ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_PARALLEL;
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else
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- return BCM63XX_FLASH_TYPE_SERIAL;
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+ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_SERIAL;
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+ break;
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case BCM6368_CPU_ID:
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val = bcm_gpio_readl(GPIO_STRAPBUS_REG);
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if (val & STRAPBUS_6368_SPI_CLK_FAST)
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@@ -102,25 +107,32 @@ static int __init bcm63xx_detect_flash_t
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switch (val & STRAPBUS_6368_BOOT_SEL_MASK) {
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case STRAPBUS_6368_BOOT_SEL_NAND:
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- return BCM63XX_FLASH_TYPE_NAND;
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+ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_NAND;
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+ break;
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case STRAPBUS_6368_BOOT_SEL_SERIAL:
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- return BCM63XX_FLASH_TYPE_SERIAL;
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+ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_SERIAL;
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+ break;
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case STRAPBUS_6368_BOOT_SEL_PARALLEL:
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- return BCM63XX_FLASH_TYPE_PARALLEL;
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+ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_PARALLEL;
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+ break;
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+ default:
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+ return -EINVAL;
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}
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default:
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return -EINVAL;
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}
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+
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+ return 0;
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}
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int __init bcm63xx_flash_register(void)
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{
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- int flash_type;
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u32 val;
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- flash_type = bcm63xx_detect_flash_type();
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- switch (flash_type) {
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+ bcm63xx_detect_flash_type();
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+
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+ switch (bcm63xx_attached_flash) {
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case BCM63XX_FLASH_TYPE_PARALLEL:
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/* read base address of boot chip select (0) */
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val = bcm_mpi_readl(MPI_CSBASE_REG(0));
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@@ -141,7 +153,7 @@ int __init bcm63xx_flash_register(void)
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return -ENODEV;
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default:
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pr_err("flash detection failed for BCM%x: %d",
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- bcm63xx_get_cpu_id(), flash_type);
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+ bcm63xx_get_cpu_id(), bcm63xx_attached_flash);
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return -ENODEV;
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}
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}
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--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h
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+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h
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@@ -7,6 +7,8 @@ enum {
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BCM63XX_FLASH_TYPE_NAND,
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};
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+extern int bcm63xx_attached_flash;
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+
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int __init bcm63xx_flash_register(void);
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#endif /* __BCM63XX_FLASH_H */
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