diff options
Diffstat (limited to 'target/linux/brcm63xx/patches-4.14/411-MIPS-BCM63XX-Register-SPI-flash-if-present.patch')
| -rw-r--r-- | target/linux/brcm63xx/patches-4.14/411-MIPS-BCM63XX-Register-SPI-flash-if-present.patch | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/target/linux/brcm63xx/patches-4.14/411-MIPS-BCM63XX-Register-SPI-flash-if-present.patch b/target/linux/brcm63xx/patches-4.14/411-MIPS-BCM63XX-Register-SPI-flash-if-present.patch deleted file mode 100644 index a91494db41..0000000000 --- a/target/linux/brcm63xx/patches-4.14/411-MIPS-BCM63XX-Register-SPI-flash-if-present.patch +++ /dev/null @@ -1,157 +0,0 @@ -From d135d94b3d1fe599d13e7198d5f502912d694c13 Mon Sep 17 00:00:00 2001 -From: Jonas Gorski <jonas.gorski@gmail.com> -Date: Sun, 3 Jul 2011 15:00:38 +0200 -Subject: [PATCH 29/60] MIPS: BCM63XX: Register SPI flash if present - -Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> ---- - arch/mips/bcm63xx/dev-flash.c | 35 +++++++++++++++++++- - arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h | 2 + - 2 files changed, 33 insertions(+), 2 deletions(-) - ---- a/arch/mips/bcm63xx/dev-flash.c -+++ b/arch/mips/bcm63xx/dev-flash.c -@@ -17,6 +17,9 @@ - #include <linux/mtd/partitions.h> - #include <linux/mtd/physmap.h> - #include <linux/mtd/spi-nor.h> -+#include <linux/of.h> -+#include <linux/spi/spi.h> -+#include <linux/spi/flash.h> - - #include <bcm63xx_cpu.h> - #include <bcm63xx_dev_flash.h> -@@ -66,6 +69,41 @@ void __init bcm63xx_flash_force_phys_bas - mtd_resources[0].end = end; - } - -+static struct spi_board_info bcm63xx_spi_flash_info[] = { -+ { -+ .bus_num = 0, -+ .chip_select = 0, -+ .mode = 0, -+ .max_speed_hz = 781000, -+ .modalias = "m25p80", -+ }, -+}; -+ -+static void bcm63xx_of_update_spi_flash_speed(struct device_node *np, -+ unsigned int new_hz) -+{ -+ struct property *max_hz; -+ __be32 *hz; -+ -+ max_hz = kzalloc(sizeof(*max_hz) + sizeof(*hz), GFP_KERNEL); -+ if (!max_hz) -+ return; -+ -+ max_hz->name = kstrdup("spi-max-frequency", GFP_KERNEL); -+ if (!max_hz->name) { -+ kfree(max_hz); -+ return; -+ } -+ -+ max_hz->value = max_hz + 1; -+ max_hz->length = sizeof(*hz); -+ -+ hz = max_hz->value; -+ *hz = cpu_to_be32(new_hz); -+ -+ of_update_property(np, max_hz); -+} -+ - static int __init bcm63xx_detect_flash_type(void) - { - u32 val; -@@ -73,9 +111,15 @@ static int __init bcm63xx_detect_flash_t - switch (bcm63xx_get_cpu_id()) { - case BCM6318_CPU_ID: - /* only support serial flash */ -+ bcm63xx_spi_flash_info[0].max_speed_hz = 62500000; - return BCM63XX_FLASH_TYPE_SERIAL; - case BCM6328_CPU_ID: - val = bcm_misc_readl(MISC_STRAPBUS_6328_REG); -+ if (val & STRAPBUS_6328_HSSPI_CLK_FAST) -+ bcm63xx_spi_flash_info[0].max_speed_hz = 33333334; -+ else -+ bcm63xx_spi_flash_info[0].max_speed_hz = 16666667; -+ - if (val & STRAPBUS_6328_BOOT_SEL_SERIAL) - return BCM63XX_FLASH_TYPE_SERIAL; - else -@@ -94,12 +138,20 @@ static int __init bcm63xx_detect_flash_t - return BCM63XX_FLASH_TYPE_SERIAL; - case BCM6362_CPU_ID: - val = bcm_misc_readl(MISC_STRAPBUS_6362_REG); -+ if (val & STRAPBUS_6362_HSSPI_CLK_FAST) -+ bcm63xx_spi_flash_info[0].max_speed_hz = 50000000; -+ else -+ bcm63xx_spi_flash_info[0].max_speed_hz = 20000000; -+ - if (val & STRAPBUS_6362_BOOT_SEL_SERIAL) - return BCM63XX_FLASH_TYPE_SERIAL; - else - return BCM63XX_FLASH_TYPE_NAND; - case BCM6368_CPU_ID: - val = bcm_gpio_readl(GPIO_STRAPBUS_REG); -+ if (val & STRAPBUS_6368_SPI_CLK_FAST) -+ bcm63xx_spi_flash_info[0].max_speed_hz = 20000000; -+ - switch (val & STRAPBUS_6368_BOOT_SEL_MASK) { - case STRAPBUS_6368_BOOT_SEL_NAND: - return BCM63XX_FLASH_TYPE_NAND; -@@ -110,6 +162,11 @@ static int __init bcm63xx_detect_flash_t - } - case BCM63268_CPU_ID: - val = bcm_misc_readl(MISC_STRAPBUS_63268_REG); -+ if (val & STRAPBUS_63268_HSSPI_CLK_FAST) -+ bcm63xx_spi_flash_info[0].max_speed_hz = 50000000; -+ else -+ bcm63xx_spi_flash_info[0].max_speed_hz = 20000000; -+ - if (val & STRAPBUS_63268_BOOT_SEL_SERIAL) - return BCM63XX_FLASH_TYPE_SERIAL; - else -@@ -176,6 +233,7 @@ void __init bcm63xx_flash_detect(void) - - int __init bcm63xx_flash_register(void) - { -+ struct device_node *np; - u32 val; - - switch (flash_type) { -@@ -195,8 +253,14 @@ int __init bcm63xx_flash_register(void) - - return platform_device_register(&mtd_dev); - case BCM63XX_FLASH_TYPE_SERIAL: -- pr_warn("unsupported serial flash detected\n"); -- return -ENODEV; -+ np = of_find_compatible_node(NULL, NULL, "jedec,spi-nor"); -+ if (np) { -+ bcm63xx_of_update_spi_flash_speed(np, bcm63xx_spi_flash_info[0].max_speed_hz); -+ of_node_put(np); -+ return 0; -+ } else { -+ return -ENODEV; -+ } - case BCM63XX_FLASH_TYPE_NAND: - pr_warn("unsupported NAND flash detected\n"); - return -ENODEV; ---- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h -+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h -@@ -709,6 +709,7 @@ - #define GPIO_STRAPBUS_REG 0x40 - #define STRAPBUS_6358_BOOT_SEL_PARALLEL (1 << 1) - #define STRAPBUS_6358_BOOT_SEL_SERIAL (0 << 1) -+#define STRAPBUS_6368_SPI_CLK_FAST (1 << 6) - #define STRAPBUS_6368_BOOT_SEL_MASK 0x3 - #define STRAPBUS_6368_BOOT_SEL_NAND 0 - #define STRAPBUS_6368_BOOT_SEL_SERIAL 1 -@@ -1565,6 +1566,7 @@ - #define IDDQ_CTRL_63268_USBH (1 << 4) - - #define MISC_STRAPBUS_6328_REG 0x240 -+#define STRAPBUS_6328_HSSPI_CLK_FAST (1 << 4) - #define STRAPBUS_6328_FCVO_SHIFT 7 - #define STRAPBUS_6328_FCVO_MASK (0x1f << STRAPBUS_6328_FCVO_SHIFT) - #define STRAPBUS_6328_BOOT_SEL_SERIAL (1 << 28) |