diff options
Diffstat (limited to 'drivers/clk/renesas')
| -rw-r--r-- | drivers/clk/renesas/clk-rcar-gen3.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/drivers/clk/renesas/clk-rcar-gen3.c b/drivers/clk/renesas/clk-rcar-gen3.c index c821bddc25..a3fb58b53b 100644 --- a/drivers/clk/renesas/clk-rcar-gen3.c +++ b/drivers/clk/renesas/clk-rcar-gen3.c @@ -1074,6 +1074,64 @@ static int gen3_clk_probe(struct udevice *dev) return 0; } +struct mstp_stop_table { + u32 dis; + u32 en; +}; + +static struct mstp_stop_table r8a7795_mstp_table[] = { + { 0x00640800, 0x0 }, { 0xF3EE9390, 0x0 }, + { 0x340FAFDC, 0x2040 }, { 0xD80C7CDF, 0x400 }, + { 0x80000184, 0x180 }, { 0x40BFFF46, 0x0 }, + { 0xE5FBEECF, 0x0 }, { 0x39FFFF0E, 0x0 }, + { 0x01F19FF4, 0x0 }, { 0xFFDFFFFF, 0x0 }, + { 0xFFFEFFE0, 0x0 }, { 0x00000000, 0x0 }, +}; + +static struct mstp_stop_table r8a7796_mstp_table[] = { + { 0x00200000, 0x0 }, { 0xFFFFFFFF, 0x0 }, + { 0x340E2FDC, 0x2040 }, { 0xFFFFFFDF, 0x400 }, + { 0x80000184, 0x180 }, { 0xC3FFFFFF, 0x0 }, + { 0xFFFFFFFF, 0x0 }, { 0xFFFFFFFF, 0x0 }, + { 0x01F1FFF7, 0x0 }, { 0xFFFFFFFE, 0x0 }, + { 0xFFFEFFE0, 0x0 }, { 0x000000B7, 0x0 }, +}; + +#define TSTR0 0x04 +#define TSTR0_STR0 BIT(0) + +static int gen3_clk_remove(struct udevice *dev) +{ + struct gen3_clk_priv *priv = dev_get_priv(dev); + enum gen3_clk_model model = dev_get_driver_data(dev); + struct mstp_stop_table *tbl; + unsigned int i, tbl_size; + + switch (model) { + case CLK_R8A7795: + tbl = r8a7795_mstp_table; + tbl_size = ARRAY_SIZE(r8a7795_mstp_table); + break; + case CLK_R8A7796: + tbl = r8a7796_mstp_table; + tbl_size = ARRAY_SIZE(r8a7796_mstp_table); + break; + default: + return -EINVAL; + } + + /* Stop TMU0 */ + clrbits_le32(TMU_BASE + TSTR0, TSTR0_STR0); + + /* Stop module clock */ + for (i = 0; i < tbl_size; i++) { + clrsetbits_le32(priv->base + SMSTPCR(i), tbl[i].dis, tbl[i].en); + clrsetbits_le32(priv->base + RMSTPCR(i), tbl[i].dis, 0x0); + } + + return 0; +} + static const struct udevice_id gen3_clk_ids[] = { { .compatible = "renesas,r8a7795-cpg-mssr", .data = CLK_R8A7795 }, { .compatible = "renesas,r8a7796-cpg-mssr", .data = CLK_R8A7796 }, @@ -1087,4 +1145,5 @@ U_BOOT_DRIVER(clk_gen3) = { .priv_auto_alloc_size = sizeof(struct gen3_clk_priv), .ops = &gen3_clk_ops, .probe = gen3_clk_probe, + .remove = gen3_clk_remove, }; |