Commit 3098f5eb authored by Florian Fainelli's avatar Florian Fainelli
Browse files

soc: bcm: brcmstb: biuctrl: Tune 7260 BIU interface 



7260A0 and B0 are both supported, and 7260A0 has a small difference in
that it does not support the write-back control register, which is why
we have a different array of registers. Update the comment above
b53_cpubiuctrl_no_wb_regs to denote that difference.

Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
parent e42617b8

drivers/soc/bcm/brcmstb/biuctrl.c

+5 −2
Original line number Diff line number Diff line
@@ -63,7 +63,7 @@ static const int b15_cpubiuctrl_regs[] = { 
	[CPU_WRITEBACK_CTRL_REG] = -1,

};



/* Odd cases, e.g: 7260 */

/* Odd cases, e.g: 7260A0 */

static const int b53_cpubiuctrl_no_wb_regs[] = {

	[CPU_CREDIT_REG] = 0x0b0,

	[CPU_MCP_FLOW_REG] = 0x0b4,
@@ -102,6 +102,7 @@ static int __init mcp_write_pairing_set(void) 
}



static const u32 b53_mach_compat[] = {

	0x7260,

	0x7268,

	0x7271,

	0x7278,
@@ -157,6 +158,7 @@ static void __init mcp_b53_set(void) 
static int __init setup_hifcpubiuctrl_regs(struct device_node *np)

{

	struct device_node *cpu_dn;

	u32 family_id;

	int ret = 0;



	cpubiuctrl_base = of_iomap(np, 0);
@@ -185,7 +187,8 @@ static int __init setup_hifcpubiuctrl_regs(struct device_node *np) 
	}

	of_node_put(cpu_dn);



	if (BRCM_ID(brcmstb_get_family_id()) == 0x7260)

	family_id = brcmstb_get_family_id();

	if (BRCM_ID(family_id) == 0x7260 && BRCM_REV(family_id) == 0)

		cpubiuctrl_regs = b53_cpubiuctrl_no_wb_regs;

out:

	of_node_put(np);

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