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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: Florian Fainelli <f.fainelli@gmail.com>
This commit is contained in:
Florian Fainelli 2019-12-10 14:57:58 -08:00
parent e42617b825
commit 3098f5eb90
1 changed files with 5 additions and 2 deletions
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7
drivers/soc/bcm/brcmstb/biuctrl.c
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@ -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);