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yaml
---
r: 344156
b: refs/heads/master
c: af14a45
h: refs/heads/master
v: v3
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John Crispin committed Nov 11, 2012
1 parent f559d93 commit 4b6ef48
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Showing 3 changed files with 40 additions and 1 deletion.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: f2bbe41c507b475c6f0ae1fca69c7aac6d31d228
refs/heads/master: af14a456c58c153c6d761e6c0af48157692b52ad
3 changes: 3 additions & 0 deletions trunk/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
Original file line number Diff line number Diff line change
Expand Up @@ -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);
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36 changes: 36 additions & 0 deletions trunk/arch/mips/lantiq/xway/reset.c
Original file line number Diff line number Diff line change
Expand Up @@ -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 */
Expand Down Expand Up @@ -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)
{
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