brcm47xx: backport BCM47XX arch patches (clean NVRAM code, later init)

SVN-Revision: 43979

1 files changed, 113 insertions, 0 deletions

diff --git a/target/linux/brcm47xx/patches-3.18/032-MIPS-BCM47XX-Make-bcma-init-NVRAM-instead-of-bcm47xx.patch b/target/linux/brcm47xx/patches-3.18/032-MIPS-BCM47XX-Make-bcma-init-NVRAM-instead-of-bcm47xx.patch
new file mode 100644
index 0000000000..a616fcc0e0
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.18/032-MIPS-BCM47XX-Make-bcma-init-NVRAM-instead-of-bcm47xx.patch
@@ -0,0 +1,113 @@
+From 7177efc5b030012c54c2e217c9d6decc0bcc1c53 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
+Date: Tue, 28 Oct 2014 13:30:23 +0100
+Subject: [PATCH 156/158] MIPS: BCM47XX: Make bcma init NVRAM instead of
+ bcm47xx polling it
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This drops ssb/bcma dependency and will allow us to make it a standalone
+driver.
+
+Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
+Cc: linux-mips@linux-mips.org
+Cc: Hauke Mehrtens <hauke@hauke-m.de>
+Patchwork: https://patchwork.linux-mips.org/patch/8233/
+Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
+---
+ arch/mips/bcm47xx/nvram.c  | 42 ++----------------------------------------
+ drivers/bcma/driver_mips.c | 13 +++++++++++--
+ 2 files changed, 13 insertions(+), 42 deletions(-)
+
+diff --git a/arch/mips/bcm47xx/nvram.c b/arch/mips/bcm47xx/nvram.c
+index fecc5ae..21712fb 100644
+--- a/arch/mips/bcm47xx/nvram.c
++++ b/arch/mips/bcm47xx/nvram.c
+@@ -121,48 +121,10 @@ int bcm47xx_nvram_init_from_mem(u32 base, u32 lim)
+ 	return err;
+ }
+ 
+-#ifdef CONFIG_BCM47XX_BCMA
+-static int nvram_init_bcma(void)
+-{
+-	struct bcma_drv_cc *cc = &bcm47xx_bus.bcma.bus.drv_cc;
+-	u32 base;
+-	u32 lim;
+-
+-#ifdef CONFIG_BCMA_NFLASH
+-	if (cc->nflash.boot) {
+-		base = BCMA_SOC_FLASH1;
+-		lim = BCMA_SOC_FLASH1_SZ;
+-	} else
+-#endif
+-	if (cc->pflash.present) {
+-		base = cc->pflash.window;
+-		lim = cc->pflash.window_size;
+-#ifdef CONFIG_BCMA_SFLASH
+-	} else if (cc->sflash.present) {
+-		base = cc->sflash.window;
+-		lim = cc->sflash.size;
+-#endif
+-	} else {
+-		pr_err("Couldn't find supported flash memory\n");
+-		return -ENXIO;
+-	}
+-
+-	return bcm47xx_nvram_init_from_mem(base, lim);
+-}
+-#endif
+-
+ static int nvram_init(void)
+ {
+-	switch (bcm47xx_bus_type) {
+-#ifdef CONFIG_BCM47XX_SSB
+-	case BCM47XX_BUS_TYPE_SSB:
+-		break;
+-#endif
+-#ifdef CONFIG_BCM47XX_BCMA
+-	case BCM47XX_BUS_TYPE_BCMA:
+-		return nvram_init_bcma();
+-#endif
+-	}
++	/* TODO: Look for MTD "nvram" partition */
++
+ 	return -ENXIO;
+ }
+ 
+diff --git a/drivers/bcma/driver_mips.c b/drivers/bcma/driver_mips.c
+index 004d6aa..8a653dc 100644
+--- a/drivers/bcma/driver_mips.c
++++ b/drivers/bcma/driver_mips.c
+@@ -20,6 +20,9 @@
+ #include <linux/serial_core.h>
+ #include <linux/serial_reg.h>
+ #include <linux/time.h>
++#ifdef CONFIG_BCM47XX
++#include <bcm47xx_nvram.h>
++#endif
+ 
+ enum bcma_boot_dev {
+ 	BCMA_BOOT_DEV_UNK = 0,
+@@ -316,10 +319,16 @@ static void bcma_core_mips_flash_detect(struct bcma_drv_mips *mcore)
+ 	switch (boot_dev) {
+ 	case BCMA_BOOT_DEV_PARALLEL:
+ 	case BCMA_BOOT_DEV_SERIAL:
+-		/* TODO: Init NVRAM using BCMA_SOC_FLASH2 window */
++#ifdef CONFIG_BCM47XX
++		bcm47xx_nvram_init_from_mem(BCMA_SOC_FLASH2,
++					    BCMA_SOC_FLASH2_SZ);
++#endif
+ 		break;
+ 	case BCMA_BOOT_DEV_NAND:
+-		/* TODO: Init NVRAM using BCMA_SOC_FLASH1 window */
++#ifdef CONFIG_BCM47XX
++		bcm47xx_nvram_init_from_mem(BCMA_SOC_FLASH1,
++					    BCMA_SOC_FLASH1_SZ);
++#endif
+ 		break;
+ 	default:
+ 		break;
+-- 
+1.8.4.5
+