diff options
Diffstat (limited to 'target/linux/lantiq/patches-3.7/0005-MIPS-lantiq-adds-code-for-booting-GPHY.patch')
| -rw-r--r-- | target/linux/lantiq/patches-3.7/0005-MIPS-lantiq-adds-code-for-booting-GPHY.patch | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches-3.7/0005-MIPS-lantiq-adds-code-for-booting-GPHY.patch b/target/linux/lantiq/patches-3.7/0005-MIPS-lantiq-adds-code-for-booting-GPHY.patch new file mode 100644 index 0000000000..84aa965231 --- /dev/null +++ b/target/linux/lantiq/patches-3.7/0005-MIPS-lantiq-adds-code-for-booting-GPHY.patch @@ -0,0 +1,89 @@ +From af14a456c58c153c6d761e6c0af48157692b52ad Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Fri, 9 Nov 2012 13:43:30 +0100 +Subject: [PATCH 5/6] MIPS: lantiq: adds code for booting GPHY + +The XRX200 family of SoCs has embedded gigabit PHYs. This patch adds code to +boot them up. + +Signed-off-by: John Crispin <blogic@openwrt.org> +Patchwork: http://patchwork.linux-mips.org/patch/4522 +--- + .../mips/include/asm/mach-lantiq/xway/lantiq_soc.h | 3 ++ + arch/mips/lantiq/xway/reset.c | 36 ++++++++++++++++++++ + 2 files changed, 39 insertions(+) + +diff --git a/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h b/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h +index 6a2df70..133336b 100644 +--- a/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h ++++ b/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h +@@ -82,6 +82,9 @@ extern __iomem void *ltq_cgu_membase; + #define LTQ_MPS_BASE_ADDR (KSEG1 + 0x1F107000) + #define LTQ_MPS_CHIPID ((u32 *)(LTQ_MPS_BASE_ADDR + 0x0344)) + ++/* allow booting xrx200 phys */ ++int xrx200_gphy_boot(struct device *dev, unsigned int id, dma_addr_t dev_addr); ++ + /* request a non-gpio and set the PIO config */ + #define PMU_PPE BIT(13) + extern void ltq_pmu_enable(unsigned int module); +diff --git a/arch/mips/lantiq/xway/reset.c b/arch/mips/lantiq/xway/reset.c +index 2799212..544dbb7 100644 +--- a/arch/mips/lantiq/xway/reset.c ++++ b/arch/mips/lantiq/xway/reset.c +@@ -28,9 +28,15 @@ + #define RCU_RST_REQ 0x0010 + /* reset status register */ + #define RCU_RST_STAT 0x0014 ++/* vr9 gphy registers */ ++#define RCU_GFS_ADD0_XRX200 0x0020 ++#define RCU_GFS_ADD1_XRX200 0x0068 + + /* reboot bit */ ++#define RCU_RD_GPHY0_XRX200 BIT(31) + #define RCU_RD_SRST BIT(30) ++#define RCU_RD_GPHY1_XRX200 BIT(29) ++ + /* reset cause */ + #define RCU_STAT_SHIFT 26 + /* boot selection */ +@@ -60,6 +66,36 @@ unsigned char ltq_boot_select(void) + return RCU_BOOT_SEL(val); + } + ++/* reset / boot a gphy */ ++static struct ltq_xrx200_gphy_reset { ++ u32 rd; ++ u32 addr; ++} xrx200_gphy[] = { ++ {RCU_RD_GPHY0_XRX200, RCU_GFS_ADD0_XRX200}, ++ {RCU_RD_GPHY1_XRX200, RCU_GFS_ADD1_XRX200}, ++}; ++ ++/* reset and boot a gphy. these phys only exist on xrx200 SoC */ ++int xrx200_gphy_boot(struct device *dev, unsigned int id, dma_addr_t dev_addr) ++{ ++ if (!of_device_is_compatible(ltq_rcu_np, "lantiq,rcu-xrx200")) { ++ dev_err(dev, "this SoC has no GPHY\n"); ++ return -EINVAL; ++ } ++ if (id > 1) { ++ dev_err(dev, "%u is an invalid gphy id\n", id); ++ return -EINVAL; ++ } ++ dev_info(dev, "booting GPHY%u firmware at %X\n", id, dev_addr); ++ ++ ltq_rcu_w32(ltq_rcu_r32(RCU_RST_REQ) | xrx200_gphy[id].rd, ++ RCU_RST_REQ); ++ ltq_rcu_w32(dev_addr, xrx200_gphy[id].addr); ++ ltq_rcu_w32(ltq_rcu_r32(RCU_RST_REQ) & ~xrx200_gphy[id].rd, ++ RCU_RST_REQ); ++ return 0; ++} ++ + /* reset a io domain for u micro seconds */ + void ltq_reset_once(unsigned int module, ulong u) + { +-- +1.7.10.4 + |